CB/T 3936-2001 Technical requirements for repair of hydraulic components for engineering vessels
Some standard content:
ICS47.020.20
Series No., 9039-2002
Ship Industry Standard of the People's Republic of China
CB/T3936-2001
Replaces CBT3936-15
Technical requirements for repairing hydraulic components and units of working ship2(0)1—11—15 Issued
Issued by Commission of Science, Technology and Industry for National Defense
2002—02—01Implementation
CB/T3936-2001
This standard is in compliance with CB/3936-19991.Technical requirements for repairing hydraulic components and units of working ship. .3/T1916-199 According to the "Notice on the Termination of Special Standards and the Cleanup of National Standards after Strict Transformation" issued by the Standardization Department of the State Administration for Quality Supervision, Inspection and Quarantine, and the notice of the General Company on adjusting the professional standards and relevant national standards into industry standards, it was directly adjusted from BR3200390 on June 109. The main points of this order are: add a list of "risks" in the original book, delete the original Chapter 5 "General Principles" and Chapter 6 "Technical Requirements for Disassembly and Replacement of Concentrated Oil Disk in the Original Standard", and modify the original Chapter 4 "Technical Requirements for Cleaning Along the Way" and Chapter 6 "Technical Requirements for Replacement of Contaminated Oil Disk in Concentrated Pressure System". The original Chapter 4 "Material and Technical Requirements for Replacement of Contained Oil Disk in Concentrated Pressure System" in the original standard is changed to the first list of the current standard according to the original design specifications. If we can't find the right design, delete the relevant recommended tables and major technical requirements.
The standard is 393-999.
This standard was proposed by the Technical Committee of Ship Repair of China's Technical Committee for Standardization of Marine Ships. Taibiao Ship Repair Technology Research Institute - Port. This standard has been drafted, and the main intellectuals of this standard are: Shu Boyang, Liu Xiye, and this standard is 19 First issued in January 1990: In June 1999, the professional standard was directly adjusted to the industry standard. 1 Scope
CB/T3936-2001
Technical requirements for repair of hydraulic components for engineering ships This standard defines 1. Pre-test, repair and post-installation and testing requirements for hydraulic components for engineering ships: This standard is mainly used for the repair of hydraulic components for engineering ships, and can also be used as a reference for the repair of other hydraulic components. 2 Reference standards
The provisions contained in the following standards are cited in this standard as provisions of this standard. When this standard is published, the versions shown are valid. Standards may be revised occasionally, and parties using this standard should consider the possibility of using the latest versions of the following standards. /261::37? Determination of moisture content in petroleum products GB/T84-1933 Determination of acid content in petroleum products GB/- 693-1994
Wire rope tie purchase
GB/T --76-437
GR/T TIA4 1FAF
GB/T --345-13B8
GR:T 2979 .996
SB/7 25F0-1951
Titanium alloy wave technical conditions
Shape and space tolerances undifferentiated
Iron series
Hydraulic break chamber and live pull auxiliary equipment and groove type, size and tolerance standard and live match machine narrow break and dynamic seal groove size system measurement public welfare Taiwan metal product consultation steel
GR/T3452,:--332
53/: 3162.2-109/
GB/- 6540-295E
GR/T 793F 1OR?
GB/T H713-1HH5
SH/: U490-1399
GB/T 11379-1989
GD/T 12611-19 90
CE/: 3682-185
0B/7 3516-1908
HG/2579-1994
281199
Micro-pressure pneumatic heart-made rubber seal medical size series and tolerance 0 type rolling rubber seal appearance salt test standard
And oil product title color determination method
Liquid positive first year general use unqualified
Wave pressure and pneumatic rainbow cylinder lubrication fine internal training Xie pipe or energy weather parts
Jinliangchengmei layer engineering network electroplating layer
Metal parts (parts) forging control support card requirements ship output shaft Lianjiang light column case pressure is transport repair technical requirements injection hydraulic for pregnant blade system repair technology infant request shape material slow rubber material part: for pipeline straightening system to let movement seal cut solid rubber material
F5/: 2H11-199E
: Shaft will be sealed and replaced
3 Inspection
3.1 Hydraulic pump
3.1.1 In-depth inspection before installation
The whole set of hydraulic industry is in the whole machine or on the good day: Hydraulic pressure steel
Hydraulic pressure is not named
Electric mountain road
Ping driving reward
Heart valve
Electric body can move to read
Close the pressure adjustment network
3.1.2 Inspection of disassembly
3. 1. 2. 1
3. 1. 2. 2
3. 1. 2. 3
3. 1. 2. 4
3. 1. 2. 5
3. 1. 2. 6
3. 1. 2. 7
3. 1. 2. 8
3. 1. 2. 9
3.1.2. 11
CB/T3936-·2001
Pressure valve operation inspection before repair
According to the project
According to the material type, high output, according to the start-up and end-stage standard requirements, production belt production response, force recording is standard,
This is to lift the whole well to close, prove the ten degrees of life, lightly check the performance of the main setting of a force a state of control to stop non-leakage: 4 cities, often and
original year adjustment state a pressure, standard reduction performance
intentionally open the new base to close, the decompression training elasticity contains the final amount, control adjustment performance: students set the "operating pressure, standard measurement of external potential leakage in the original long section: concept of the people's high force beauty store oil to, the whole Open a shop and close the pressure head: in the hotel hall, the investment outside and:
home to the flat profit price stop oil, check the network can produce opening and closing, check the closing piece of the internal Pu:
air at the scene under the balance of oil, driver and equipment support: check whether the equipment is in place with external double bottom: the picture below the jade is in place, special work: force is sales: for the male Wang heart can thank the resistance of the epidemic, change the service, adjust the flow of flash, control the fluctuation of the army speed regulation location half below, can
2 in the continent speed with the force, the whole mountain can check the change of section and the reading of the time rod surface existence of the sense of control hair, scars and carvings, check the core science and technology body matching whether there is a difference. Check the core and the core connection to see if they are tight, check if there are cracks and defects such as peeling and peeling, whether the two ends of the belt are parallel, whether the center line of the spring will sag under strong compression, and whether there is large deformation. Check the stiffness of the spring, check the spring for reference, check the shape of the spring, and check if there are any marks, damage, shadows, and micro-sags on the surface of the seal. Small oil holes such as the valve body size hole, half-balance oil hole, and oil leakage hole are illegal. Cold spring valves, speed control valves, and card valves are protected by pull, and the flying thorns are strict. 3.1.2.12
3.1.2.13
Check whether the sliding parts of wet inductor are tight and flexible: there are burrs, scratches and gaps, the magnet in the housing should be deformed, and the end face of the head should be touched. CB/T3938—2001
3.1.2.14 Check whether the insulation of the electromagnetic wire is detached, and whether the output magnetic wire is full of magnetism and insufficient insulation: 3.1.2.15 Check whether the power on and off of the iron wire are reliable. 3.2 Fluid matching
3.2.1 Operation check before disassembly
3.2.1.1 Under the condition of large dynamic operation, the starting, lowering, braking and supporting operations are carried out under the condition of slightly full pressure operation. During the lifting brake, check for leakage and other problems: Check the moving distance during braking and the drop after support 3.2.1.2 After compaction, check the piston or plug settlement under the wave pressure state 3.2.2 Inspection after disassembly
3.2.2.1 Check whether the dustproof seal has cracks and other damages, 3.2.2.2 Check whether the sections of various types of dynamic and static seals have pressure deformation, and whether the appearance has cracks, sags, aging and other defects 3.2.2.3.2.2.1 Check the upper and lower parts for axial scratches, notches and severe scratches. 3.2.2.5 Check the tightness and pressure resistance of the piston rod and the guide sleeve or the upper and lower guide sleeve for damage. 3.2.2.B Check the balance and integrity of the oil passage of the pressure cylinder buffer and the tightness of the buffer head. 3.3 Crankshaft joints
3.3.1 Operation inspection before disassembly
3.3.1.1 Under the working conditions on site, the hydraulic motor is operated in reverse and checked for leakage and abnormality. 3.3.1.2 Right stop and set the working pressure, hydraulic self-lead, remove the pressure guard oil drain pipe, and check whether the oil leakage can start.
3.9.2 After disassembly
The inspection after disassembly shall comply with the requirements of CR/33 for troubleshooting before repair. 3.4 Twin blade system
The inspection number of twin blade system shall be determined by CB/38_6. 3.5 The physical and chemical properties of hydraulic oil shall be inspected as follows: 1) Check whether the hydraulic oil is lustrous and opaque; b) Check whether the viscosity of the hydraulic oil exceeds the requirements of GB6603; b) Check whether the acid value of the hydraulic oil exceeds the requirements of Table 8; 1) Check whether the viscosity of the hydraulic oil exceeds the requirements of Table 8; 2) Check whether the viscosity of the hydraulic oil exceeds the requirements of Table 8; 3) Check whether the percentage of water in the hydraulic oil exceeds the requirements of Table 8. Pi
4 Hydraulic principle
4.1 Hydraulic principle
4.1.1 If the two parts of the hydraulic pressure regulating island are replaced with new ones, the material efficiency of the parts shall be increased according to the original requirements. If the material efficiency of the parts is not increased, the material efficiency of the parts shall be increased according to 1. 4. 1.1. 1
Table 2 Hydraulic lubrication vulnerable parts materials and main postal technical requirements Pregnancy stop name
Material grade
HT3W09,T350
20crh-Ti
Probe number
GE4JSE
CET 30T 1H9
P: Effective, 200--260E
Safety, HHHR
Small two-stage office
Big surface lubrication special slurry KE
c. F.--0. 4
CR/T3936-2001
4.1.1.2 The free return ratio and the busy technical requirements should meet the original design requirements. If the plan cannot find the information and design resources first, then select Table 3 Common hydraulic valve matching accuracy
Parts name
Chinese and German overflow interval
Pressure valve
Electric pursuit of the country's flow
Single can be set to reduce the interval
Chinese can be connected to the standard flow interval
Teaching year to the intervalbzxz.net
Magnetic reversing drawing
Central liquid exchange interval
Liquid return column matching surface according to the matching accuracy: its matching interval is reduced to Table 4 Hydraulic valve national column matching clearance
Public diameter
Leakage three reads the vulnerable parts of the car Long sorting
c. f. ot2
0. G12 --0. C20
D, C2G--0. C.5
0. n20. G32
D. 028- 0. C38
Shape and seat
Quality can be drawn
Line press!
Matching room
G.010--C...5
C.015--C.030
0.030--C.040
G.040 -C.045
C 4u--c: nhu
Country hanging valve core and body after the original deviation is within the maximum possible original material addition, idle information lead 4.1.2. 1
can use a sharp knife to write to the library, the network core after the debt like the management: the reason of the film with the special degree of the gap into the spirit of 3 and table 4 requirements, the main valve core valve female after the flow valve repair report with a certificate gap can be increased by a large amount of clearance within one time the gap 4.1.2.2 with the introduction of the grinding agent grinding rate, before and after the opening should be cleaned, that is, to prevent the turbulence of the agent list other pollutants left in the danger,
4.1.? 3 should be the most effective when the side, prevent the mountain specification female circle and the horn. 4.1.2.4 before chrome plating should be reversed, the previous table must be treated with the quality of the star should meet the relevant provisions of CB/T [28:. After the plating of the front of the external fear of the product, the degree of separation and other requirements should meet the relevant provisions of 6 health, ~11379. The degree of wear should not be too great, 0.1, quality after cutting should be polished:
1.1.2.5 The main core and the pilot valve should be connected to the new line, and the needle can be sharpened and polished. The cone head should be polished and polished after repair. The original design requirements should be met. 4.1.3 The wave pressure spring should be replaced
4.1.3.1 The width of the spring is the wave pressure test sensitivity, stability, and stability of the car. The new spring should be made of the same material, small number of cycles, and high and low protection as the original. 4
/T3936-2001
4.1.3.2 The new spring should undergo necessary heat treatment, shot peening and strong pressure aging treatment. In order to ensure the elasticity, stability and strength of the elastic, the two sides should be pulled through the buttocks to ensure that the elastic sheet is vertical, and its verticality should not exceed the level 5 specified in GB/T1134. 4.1.9.3
The new elastic sheet will not have cracks, cracks, scars, clamps, skin damage, delamination and other defects. 4.1.3.4
4.1.4 Wet-type electric iron protection
4.1.4.1 The electromagnetic core has slight hair, feeder can be polished, 4.1.4.2 The electromagnetic core is damaged or defective, and should be replaced. 4143
Emergency test shall be conducted, and the straightness shall not exceed (.1mm). If the electric inlay is loose, the vortex magnet or the insulator is not in compliance, it shall be repaired, baked or replaced. 4.1.4.4
Electric wire connection or power failure, power off: 4.1.5New
Engine parts shall not have defects such as scratches, damage, cross-section deformation, aging and cracking. 4.1 5. 1
The disassembled dynamic and static (shaped and sealed) parts should be replaced in principle. 4.1.5.2
4.1.5.3 If the replaced heart-shaped seal is matched with the original parts, the material, size, size, hardness, etc. should meet the requirements of the original parts. If the core rubber is used: its external quality shall meet the requirements of GB 3452.2, and its mechanical properties shall meet the requirements of G/12811. 4.2 Fluid performance
4.2.1 Fluid industry quality 4.2.1.1 The original design requirements for the vulnerable parts of the hydraulic cylinder, such as the body, column, lifting rod, movable rod and guide length, and the variable speed and variable speed requirements. If the original design data are not available, the materials and main processing technical requirements of the vulnerable parts of the hydraulic cylinder shall be selected according to Table 5. Part name: Viscous rod, movable rod, movable rod and guide rod, etc., and the requirements for the quality and flexibility of the vulnerable parts shall be as follows: ... Inch steel
ST353 etc
2CrZ43n
2-14r2
Standard guide
GE/T 871316
CET 439-1586
GR,T AHIaHy
FP/T 871$-1938
GE-T 3077L90S
i/sey 139
GA/T 13E-1988
GB/T 5439-1088
-R/-117ti-1988
Sichuan T sequence
.ss n?
Inner diameter part
This surface state soft shop
See table?
One technology and processing
9 certificate, relative 1:8
pressure, special parts only need to count:
Car, mourning page. What,
chrome, high precision or high-precision after fire
heat adjustment:-
correction car: 200ER
State car, special car
hydraulic cylinder vulnerable parts other matching market to meet the original design requirements, no original design data can be found, then according to the record 6. Table 6 Hydraulic red vulnerable parts matching accuracy
Parts name
White and station
Variability and complaint analysis
Special to multi-du car
Meeting precision
CB/T $9S6—2001
4.2.1.3 The roughness of the sliding surface of the hydraulic cylinder parts shall be in accordance with the specifications in Table 7. Table 7 Roughness of the sliding surface of the filter cylinder parts
Table 7 Roughness of the sliding surface of the filter cylinder parts
Table 7 Roughness of the sliding surface of the filter cylinder parts
Cylinder case
Live lamp installation and
Number of other changes inside and outside. i
4.2.1.4 Piston, piston rod or rod type groove type, size, see the public lift should meet the original design requirements, or meet the requirements of Taiwan C6/T23793288
4.2.2 After the beach or the passenger repair
4.2.2.1 Liquid II If there is one of the defects listed in the table, the hole should be repaired, the roll or cake tube should be repaired, the wrong size should be considered and the live or plug repair should be changed,
a) Four relatives, the net intention, the same pull period difference two levels b) Face damage: surface roughness down two levels:) The current cleaning degree is large., K degree is greater than 5m. 4.2.2.2 The column or column has 4.2.2.1a: The bottom damage is reduced or the depth is greater than the compensation layer thickness. The chain should be flattened or flattened. The layer thickness should not be too large. 4.2.2.3 The live case rod or column is difficult to stop the tiger for grinding measurement, the surface roughness is increased by a0.F, -: The surface quality of the chain before the inspection is two government GB/T12611 related provisions, the appearance quality of chrome plating, carbon fiber combination, etc. should comply with [B/T11379 related regulations. After plating, the strip should be polished:
4.2.2.4 Copper negative storage 4.2.2.-a) rate of loss, should be replaced. 4.2.2.5 Hydraulic pressure proof, dynamic and static use of the heart-shaped seal, dynamic shape rate of the whole image calibration, etc., if the surface or shop has dynamic wear, plate wear, cross-section deformation, external shadow or aging material defects, should be replaced. 4.2.2. The size and tolerance of the replacement should comply with the requirements of the system, and the mechanical properties of the material should comply with the requirements of G2591:
4.3 The diameter of the curved buckle connecting rod to the column is suitable for repairing the vulnerable parts. If you have the cost of L, you can see B. 4.4 Double report a mother call piece urgent repair
vulnerable parts replacement Yajia 1. Physical current CB/T3816 in the relevant requirements. 4.5 Replacement of the shell by the industry
4.5. The sample of the container should be checked by a clean rate device to ensure that the sample is free of environmental elements. 4.5.2 When the physical and chemical properties of the hydraulic oil reach the limit changes specified in Table 8, the hydraulic oil should be purified to meet the limit changes in the physical and chemical properties of the hydraulic oil specified in Table 9
Color change
European degree change, Hig
station collection change connection, special
points, "
Anhua and to
opaque, live
ground Chenglong
zhang, 0
change limit
now/16615-1366
each reduction liquid business and amount, yuan G3284-198310 (must move viscosity
see 6/1 XH-1997
new liquid inquiry: there is a new report oil 9-3.54.5.3 liquid method oil solid pollution policy degree change limit CB/T 3936-2001
When the change limit of hydraulic oil solid contamination reaches the limit specified in the table, the filter should be replaced or the filter should be replaced. 9 Hydraulic oil solid contamination change limit
System flow element
Gear pump, hydraulic cylinder
Impeller, hydraulic cylinder, hydraulic pump
Crankshaft injection
Light. Fine i Du variable pressure system
4.6: Fluid system flow
Pressure requirements
4.6.1 Hydraulic pump, hydraulic motor, wave pressure age of the ridge Shanghai wash wave stop body contamination extreme
100g/100ml
Zirgxanl
|en.w.ucml.
461.1 All hydraulic system parts, hydraulic gauges, etc. should be replaced or repaired after cleaning or inspection. 4.6.1.2 Hydraulic pumps, hydraulic valves, etc. should be cleaned separately. Use light oil or other effective detergents for cleaning. When cleaning, use a container with light oil or drying oil to clean the liquid. Before cleaning, check that there are no impurities in the liquid. 4.6.1.3
5.1.4 For parts, use a wave filter to remove impurities. Before cleaning, check that there are no impurities in the liquid. Check if there are any residual particles. 4. 6. 1. 5
4. 6. 1. 6
4.6. 1. 7
For the components of the pressure gauge, the tetrachloride cleaning liquid should be used to clean the steel residue. The steel residue should be cleaned with a cloth similar to a magnetic cleaner. The special tax can be removed by flour. Cotton yarn and other easy-to-drop cloth are prohibited. 4.6.1.8 After cleaning, the components should be cleaned with oil and oil. After inspection, the components should be assembled immediately. 4.6.1.9 After assembly, the exposed holes of the components should be blocked to prevent contamination. 4.6.2 Liquid stop pipe repair and matte removal
4.6.2.1 The new components should be cleaned chemically after processing and molding. After assembly, the pressure test should be carried out. The pressure test should be carried out. 2
4.6.2.3 The end of the pipe should be sealed to prevent contamination. 4.6.2.4
The chemical treatment of pipe fittings should include the following two aspects:
Trace oil stains -
Zhou City Port Metallurgy
Commercial pressure water flushing
It is a standard treatment method -
Quality inspection - Village tower.
Cold, fuel flushing - compressed air through the city standard, the production of more than 200 days of the filter, check the large impurities. 4.6.2.5 The cleaning of pipe fittings should include the following two aspects: oil removal - plastic cloth - oil - biopsy - filling 4.6.2.6 The quality inspection requirements of pipe cleaning pieces are as follows: 2 The inside of the piece after chemical elimination should be neutral, and the color should be positive silver. 4.6.3 Talk about auxiliary parts, such as simple washing, pressure washing, pressure relief, etc., which meet the following requirements: a) The inner wall of the box and the container should meet the following requirements: a) In general, if there is heavy oil pollution, it should be washed with degreasing detergent first, and then light oil should be washed separately, and use a cloth or clean cloth to check if there is any debris:
CB/T3936-2001
b) The inner wall of the box can be cleaned with plastic fan or fine flour to eliminate the residue. It can be used for replacement inspection: ! ! After the cleaning of the box and cabinet is qualified, it should be immediately coated with oil, and the cover should be sealed; small) filter, filter element should be lightly brushed with oil, then cleaned and washed, and then blown with dry air. 5 Installation
5.1 Installation of hydraulic three-phase and hydraulic motor
5.1.1 The hydraulic fracturing unit and the base after repair should have sufficient strength, flexibility and anti-movement in all directions: 5.1.2 The hydraulic pump driven by the motor or the hydraulic transmission coupling should have an installation displacement of less than 0.2% of the outer diameter of the coupling: the typical value should be less than 0.5% of the outer diameter of the coupling. 5.1.3 The installation displacement of the hydraulic motor inlet and outlet seat plate and the connection method of the pressure system should be less than the outer diameter of the flange, and the value should be less than the outer diameter of the flange. 5.1.4 , the straightness of the oil drain pipe and the pressure relief pipe should be small, and the length should be reduced. The oil path should be unobstructed, and the answer port should be installed on the normal operation surface as follows:
5.1.5 When repairing the reducer box and hydraulic pump, the pressure system and position should be positioned first, and the connection sensitivity of the motor and reduction range, reduction box and hydraulic pump should meet the requirements of 5.1.3:
5.2 Installation of hydraulic pump
5.2.1 When replacing new parts, remove the jamming system and sharp angles. At the cylinder port, the slope angle and length of the assembly must meet the requirements of the design drawings. 5.2.2 The hydraulic stop, the active rod swimming through the object's size accuracy, assembly trip, the same first assembly quality factors must meet the requirements of the original design drawings. 5.2.3 When installing the system, the shaft fire, the fracture, etc., it should prevent the upper part from being rubbed and bent. 5.2.4 When installing the static seal, apply grease. When installing the dynamic seal, apply a number of ".\ impact quality. 5.2.5 The surface seal of the installation drawing must be tight: 52.6 The buffer device is connected to the original complaint unloading record for negative adjustment. 5.2.7 The new assembly is completed. The width of the river and the shape of the guide sleeve are measured. The active rod is required to move in a stroke. 5.3 There is no pressure valve treasure installed. The assembly surface should be coated with a working surface. 5 3.2
It should be ensured that the product is clean and suitable for suction.
5.3.3. The hydraulic pressure relief valve should be connected to the tank and should not be disturbed unless there are preventive measures. 5.34. The oil width of the oil return pipe and the oil return pipe of the hydraulic valve should be connected in winter and should not be disturbed. 5.3.5. The diameter, length and direction of the hydraulic valve should be reduced as soon as possible. 5.3.6. Before installation, check the potential of the surrounding seat and the orifice for accuracy. Such as changing direct control to avoidance control, changing sequence measurement to degree measurement, changing flow monitoring measurement to intersection measurement, etc. 5.3. The leakage ports of pressure reducing valves, cascade valves, modified and combination valves must be unobstructed. 5.3.8 For all kinds of electric control replacements, before installation, check whether the electromagnetic function meets the normal requirements, check whether the magnetic action is flexible and whether the functional block is functioning properly:
5.4 Installation of pressure-breaking components
5.4.1 The installation requirements of hydraulic steel pipes must be the same;
! The pipe should be installed flat and accurately. The intersection of the centrifugal pair and the cross-connection should be adhered to the same channel: h) The pipe should be connected with the flange or the medium thread joint in the straight pipe position: c) The wave of the silver pipe end should not be greater than 0.3mm/100m: The silver joint should be installed in a beach to avoid up and down academic installation: d
The steel pipe should be installed to compensate for the heat and cold drops: f
The steel pipe should have fixed reduction measures, and the rubber reduction pads should be placed on the fixed bracket: The installation requirements of the hydraulic rubber pipe are as follows:
CB/T 3936—2001
The minimum deflection of the hydraulic pipe should be light, and it must not be less than the provisions in Table 20: The numbers in the table are applicable to ten [, 2 and 3 layer pipelines!
10 The minimum radius of the pressure hose
The nominal inner diameter of the cavity
The minimum bend "
The straight-line distance from the head to the start of the bend should be greater than 6 The outer diameter of the hose: !) The entire rubber strand after installation should be in a white state, not subject to bending load, and should not be twisted during installation. The installation of the small pressure rubber pipe should prevent the upper bearing and section equipment from being damaged, and give necessary fixation. 5.5 Precision equipment installation
5.51 The size, length and net processing of the dynamic and static cover of the 0-shaped rubber modification box shall comply with the relevant provisions of G1/3152.H/T2879, GT/2880, etc., and should prevent scratches and extensions during installation: 5.5.2 The lip-shaped stable yield rate is used for the one-way output joint: Solution The oil pressure must run in the direction of the month: the structure is effective, the sense of the oil pressure must be divided into two sides of the left and right sides. 5.5.3 The shape of the seal is very small, 1, 45" material, the adjacent seals with odd numbers are installed 90° apart: the seals with even numbers are installed 180" apart. The tightness of the installation should be adjusted appropriately. 5.5.4 The complete seal must be applied one by one. The oil should be applied at the melting point: the installation is too intense, and the working oil should be 5.5.5 The seal belt on the outer instantaneous connection should be connected at both ends of the shaft head. It is not allowed to reach the shaft head. The shaft should be wound in the clockwise direction from the shaft to the right.
E test riding
General speed measurement
Day, 1.1 Pressure relief product test should be in accordance with the requirements of /T7435. 6.1.2 Test The accuracy of each oil injection test should not be lower than the pressure test parts. The system dynamic quality accuracy requirements: 6.1.3 The cumulative temperature of the system startup should not be lower than 15: the transfer condition should not exceed 65. Before the test: Check and confirm whether the oil temperature, oil level and flow rate meet the requirements: 6.1.4 After the system is priming, before the test, each venting plant should be opened and fully vented until the dynamic 6.1.6 Check the normality and completeness of the test table, and check the correctness and tightness of the connection 6.2 Hydraulic hydraulic failure test connection table 11: Hydraulic pump test Test items Rated value Test requirements Under rated transfer pressure. The full transfer pressure is reached and the transfer pressure is Note: 1.2 power test is carried out at will, there is no leakage and abnormal smell, according to the dynamic, surplus rise and other changes 6.3 hydraulic positive motor hydraulic positive test child table 12.
pressure motor test
test item H
category,
test fee request
let the separation is fast and in the river as one, this turn is always negative effect
car care is according to and over-protection, operation positive belt
note: 1.2 power test is carried out at will, there shall be no promise and rate damage, according to the dynamic, overflow rise and other conditions, 9
6.4 hydraulic red
hydraulic industry department test according to table 13.
lake test item
internal foundation flower t
external difficult circulation
CB/T 3936-2001
Table 13 Hydraulic test run
Test requirements
Under the empty condition, short injection, separate the two ends of the bleed valve, the whole run for 6 seconds, the whole run is completed, the gas is closed,
The whole run is resumed for 6 seconds, and there should be no leakage. The effective test limit cylinder is set at the end of the fence or the oil is injected separately, and the oil is injected at the end of the fence. The pressure of the oil inlet is controlled to test the pressure, and the leakage is measured. This test can be replaced by the test volume. In the test process, the test liquid is also reciprocated for more than 10 times, and the internal and external control flow source and the electric control rate are adjusted to the standard. The internal and external control overflow is connected to the electric control load overflow limit test table 14.
Recognition items
Performance and indication
Stability
Internal leakage
Pressure
External leakage
Table 14 Test categories for internal and external control relief valves, electric control unloading relief valves
Reducing function family, one-way reducing valve
Test cavity system continuous Le force Xie mutual tested whole huge force, "speed flash, touch test valve sinking method for test suitable flow, full river fully closed, pressure gauge pointer on, external drop, no continuous movement of the test system reaction force test rate tested Le Shi: full cut test belongs to the tested belonging, only for the heart control load flow test, and the force is under the test pressure of ± 15 pressure reducing valve, one-way reducing valve test||t t||Test item
&Directional pressure loss head
Test risk change
Adjust the test system around, make the test progress! The main force is the test, the test flow is full, the test is completed, and the export force meter is half a chord up and down: adjust the test force to be tested and output two music as the section test music force north report when only the opposite time reduction music is tested, the exploration is reversed, so that the reverse oil flow is low, the reverse pressure tunnel
Internal and external control amount! Words are fine, strict, and the first direction is smooth! Ming 6.7
Internal and external control sequence is medical, flat street version, single teacher sequence business test adjustment according to Table 16DH/T2879, GT/2880 and other regulations have X regulations. When installing, you should prevent scratches and extensions. 5.5.2 Lip shape stability diagram uses ten one-way force structure: the release mouth must eventually run towards the oil inlet pressure direction: for the effective force structure, the power must be divided into two directions. The oil pressure can be achieved on both sides. 5.5.3 For those who are slightly sealed, 1, the sealing figure is 45", and the adjacent seals with an odd number of sealings are installed 90° apart: the sealing figures are even numbers, and the machine seals are installed 180" apart. The installation tightness should be adjustable and appropriate. 5.5.4 For a complete seal, the oil should be applied one by one. The installation is too dynamic. The working oil should be stagnant. 5.5.5 At the external instantaneous connection of the seal belt, the two sides should converge at the shaft head, and the shaft head must not be reached. The upper and lower directions should be in the clockwise direction from the shaft to the right.
E test ride
General speed measurement
Day, 1.1 Pressure relief product test should comply with/T7435 requirements. 6.1.2 The accuracy of the test oil injection should not be lower than the test pressure loss system dynamic accuracy requirements: 6.1.3 The test cumulative starting temperature should not be lower than 15: the transfer condition should not exceed 65. Before the test: check and confirm whether the test oil temperature, oil level and flow rate meet the requirements: 6.1.4 After the system is priming, before the test, all air vents should be opened and fully vented until the dynamic is shut down. 6.1.6 Check the normality and completeness of the test table, and check the correctness and tightness of the connecting pipe. 6.2 Hydraulic hydraulic test connection table 11: Hydraulic pump test Test items Rated value Test requirements Under rated transfer pressure. Reach the full
stirring and the pressure is under, make the palace
Note: any 1·2 power test is carried out, there is no external leakage and abnormal taste, according to the dynamic, surplus rise and other changes 6.3 hydraulic motor
hydraulic positive test child table 12.
pressure motor test
test item H
type and,
test fee request
let leave is fast and in the river as one, this turn is always fixed negative effect
car care is according to and over-protection, run the positive belt
Note: death in the 12 power test, there shall be no promise reward and rate harm to the product, according to the dynamic, overflow rise and other conditions, 9
6.4 hydraulic red
hydraulic industry test according to table 13.
Test items
Internal test
External test
CB/T 3936-2001
Table 13 Hydraulic test run
Test requirements
Under the empty condition, short injection molding, separate the air bleed valves at both ends, turn the whole line for times, and close the air after all the operations are completed.
The whole line is running for 6nin, and there should be no accident. The effective limit test cylinder is set in the shielding zone or the interval, and the oil is fed into the end of the fence, and the control pressure is tested. The leakage is measured. The non-temperature measurement can be used to replace the test. In the test process, the test liquid is reciprocated for more than 10 times, and the dead drop is small. The internal and external control flow source, the target control rate, and the internal and external control overflow are adjusted to the standard. The control load overflow limit test is connected to Table 14. The whole item is recognized and the stability is shown in Table 14. The internal leakage mud scene will be pressure and external leakage. Internal and external control relief valve, electric control unloading relief valve test category
pressure reducing function family, one-way pressure reducing valve
swimming test cavity system continuous Le force Xie mutual tested whole huge force, "speed flash, touch test valve sinking method for test suitable flow, full river fully closed, pressure gauge pointer on, external drop, no despair of continuous dynamic test system reaction force test rate tested Leshi: full cut tested, only for heart-controlled load flow test, for example, and the force under the test whole pressure ± pressure: this recommendation has rising
pressure reducing valve, one-way pressure reducing valve test (5 attenuation 15 pressure reducing valve, one-way pressure reducing valve test ||t t||Test item
&Directional pressure loss head
Test risk change
Adjust the test system around, make the test progress! The main force is the test, the test flow is full, the test is completed, and the export force meter is half a chord up and down: adjust the test force to be tested and output two music as the section test music force north report when only the opposite time reduction music is tested, the exploration is reversed, so that the reverse oil flow is low, the reverse pressure tunnel
Internal and external control amount! Words are fine, strict, and the first direction is smooth! Ming 6.7
Internal and external control sequence is medical, flat street version, single teacher sequence business test adjustment according to Table 16DH/T2879, GT/2880 and other regulations have X regulations. When installing, you should prevent scratches and extensions. 5.5.2 Lip shape stability diagram uses ten one-way force structure: the release mouth must eventually run towards the oil inlet pressure direction: for the effective force structure, the power must be divided into two directions. The oil pressure can be achieved on both sides. 5.5.3 For those who are slightly sealed, 1, the sealing figure is 45", and the adjacent seals with an odd number of sealings are installed 90° apart: the sealing figures are even numbers, and the machine seals are installed 180" apart. The installation tightness should be adjustable and appropriate. 5.5.4 For a complete seal, the oil should be applied one by one. The installation is too dynamic. The working oil should be stagnant. 5.5.5 At the external instantaneous connection of the seal belt, the two sides should converge at the shaft head, and the shaft head must not be reached. The upper and lower directions should be in the clockwise direction from the shaft to the right.
E test ride
General speed measurement
Day, 1.1 Pressure relief product test should comply with/T7435 requirements. 6.1.2 The accuracy of the test oil injection should not be lower than the test pressure loss system dynamic accuracy requirements: 6.1.3 The test cumulative starting temperature should not be lower than 15: the transfer condition should not exceed 65. Before the test: check and confirm whether the test oil temperature, oil level and flow rate meet the requirements: 6.1.4 After the system is priming, before the test, all air vents should be opened and fully vented until the dynamic is shut down. 6.1.6 Check the normality and completeness of the test table, and check the correctness and tightness of the connecting pipe. 6.2 Hydraulic hydraulic test connection table 11: Hydraulic pump test Test items Rated value Test requirements Under rated transfer pressure. Reach the full
stirring and the pressure is under, make the palace
Note: any 1·2 power test is carried out, there is no external leakage and abnormal taste, according to the dynamic, surplus rise and other changes 6.3 hydraulic motor
hydraulic positive test child table 12.
pressure motor test
test item H
type and,
test fee request
let leave is fast and in the river as one, this turn is always fixed negative effect
car care is according to and over-protection, run the positive belt
Note: death in the 12 power test, there shall be no promise reward and rate harm to the product, according to the dynamic, overflow rise and other conditions, 9
6.4 hydraulic red
hydraulic industry test according to table 13.
Test items
Internal test
External test
CB/T 3936-2001
Table 13 Hydraulic test run
Test requirements
Under the empty condition, short injection molding, separate the air bleed valves at both ends, turn the whole line for times, and close the air after all the operations are completed.
The whole line is running for 6nin, and there should be no accident. The effective limit test cylinder is set in the shielding zone or the interval, and the oil is fed into the end of the fence, and the control pressure is tested. The leakage is measured. The non-temperature measurement can be used to replace the test. In the test process, the test liquid is reciprocated for more than 10 times, and the dead drop is small. The internal and external control flow source, the target control rate, and the internal and external control overflow are adjusted to the standard. The control load overflow limit test is connected to Table 14. The whole item is recognized and the stability is shown in Table 14. The internal leakage mud scene will be pressure and external leakage. Internal and external control relief valve, electric control unloading relief valve test category
pressure reducing function family, one-way pressure reducing valve
swimming test cavity system continuous Le force Xie mutual tested whole huge force, "speed flash, touch test valve sinking method for test suitable flow, full river fully closed, pressure gauge pointer on, external drop, no despair of continuous dynamic test system reaction force test rate tested Leshi: full cut tested, only for heart-controlled load flow test, for example, and the force under the test whole pressure ± pressure: this recommendation has rising
pressure reducing valve, one-way pressure reducing valve test (5 attenuation 15 pressure reducing valve, one-way pressure reducing valve test ||t t||Test item
&Directional pressure loss head
Test risk change
Adjust the test system around, make the test progress! The main force is the test, the test flow is full, the test is completed, and the export force meter is half a chord up and down: adjust the test force to be tested and output two music as the section test music force north report when only the opposite time reduction music is tested, the exploration is reversed, so that the reverse oil flow is low, the reverse pressure tunnel
Internal and external control amount! Words are fine, strict, and the first direction is smooth! Ming 6.7
Internal and external control sequence is medical, flat street version, single teacher sequence business test adjustment according to Table 16D4 Hydraulic hydraulic test according to Table 13. Test items Internal and external test CB/T 3936-2001 Table 13 Hydraulic test drive Test requirements In the empty space, short start, separate the air valves at both ends, turn the whole line for times, close the air after the whole line is effectively closed, and the whole line is fully operational for 6 months, and there should be no malfunction. The effective limit test cylinder is set in the shielding zone or the interval, and the oil is fed into the end of the fence, and the control pressure is tested. The leakage is measured. The non-temperature measurement can be used to replace the test. In the test process, the test liquid is reciprocated for more than 10 times, and the dead drop is small. The internal and external control flow source, the target control rate, and the internal and external control overflow are adjusted to the standard. The control load overflow limit test is connected to Table 14. The whole item is recognized and the stability is shown in Table 14. The internal leakage mud scene will be pressure and external leakage. Internal and external control relief valve, electric control unloading relief valve test category
pressure reducing function family, one-way pressure reducing valve
swimming test cavity system continuous Le force Xie mutual tested whole huge force, "speed flash, touch test valve sinking method for test suitable flow, full river fully closed, pressure gauge pointer on, external drop, no despair of continuous dynamic test system reaction force test rate tested Leshi: full cut tested, only for heart-controlled load flow test, for example, and the force under the test whole pressure ± pressure: this recommendation has rising
pressure reducing valve, one-way pressure reducing valve test (5 attenuation 15 pressure reducing valve, one-way pressure reducing valve test ||t t||Test item
&Directional pressure loss head
Test risk change
Adjust the test system around, make the test progress! The main force is the test, the test flow is full, the test is completed, and the export force meter is half a chord up and down: adjust the test force to be tested and output two music as the section test music force north report when only the opposite time reduction music is tested, the exploration is reversed, so that the reverse oil flow is low, the reverse pressure tunnel
Internal and external control amount! Words are fine, strict, and the first direction is smooth! Ming 6.7
Internal and external control sequence is medical, flat street version, single teacher sequence business test adjustment according to Table 16D4 Hydraulic hydraulic test according to Table 13. Test items Internal and external test CB/T 3936-2001 Table 13 Hydraulic test drive Test requirements In the empty space, short start, separate the air valves at both ends, turn the whole line for times, close the air after the whole line is effectively closed, and the whole line is fully operational for 6 months, and there should be no malfunction. The effective limit test cylinder is set in the shielding zone or the interval, and the oil is fed into the end of the fence, and the control pressure is tested. The leakage is measured. The non-temperature measurement can be used to replace the test. In the test process, the test liquid is reciprocated for more than 10 times, and the dead drop is small. The internal and external control flow source, the target control rate, and the internal and external control overflow are adjusted to the standard. The control load overflow limit test is connected to Table 14. The whole item is recognized and the stability is shown in Table 14. The internal leakage mud scene will be pressure and external leakage. Internal and external control relief valve, electric control unloading relief valve test category
pressure reducing function family, one-way pressure reducing valve
swimming test cavity system continuous Le force Xie mutual tested whole huge force, "speed flash, touch test valve sinking method for test suitable flow, full river fully closed, pressure gauge pointer on, external drop, no despair of continuous dynamic test system reaction force test rate tested Leshi: full cut tested, only for heart-controlled load flow test, for example, and the force under the test whole pressure ± pressure: this recommendation has rising
pressure reducing valve, one-way pressure reducing valve test (5 attenuation 15 pressure reducing valve, one-way pressure reducing valve test ||t t||Test item
&Directional pressure loss head
Test risk change
Adjust the test system around, make the test progress! The main force is the test, the test flow is full, the test is completed, and the export force meter is half a chord up and down: adjust the test force to be tested and output two music as the section test music force north report when only the opposite time reduction music is tested, the exploration is reversed, so that the reverse oil flow is low, the reverse pressure tunnel
Internal and external control amount! Words are fine, strict, and the first direction is smooth! Ming 6.7
Internal and external control sequence is medical, flat street version, single teacher sequence business test adjustment according to Table 16D
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