Mechanical Industry Standard of the People's Republic of China
JB/T8779-1998
Superhard Material Six-sided Top Hydraulic Press
Technical Conditions
Published on 199%-07-17
Guohao Machinery Industry Bureau
1998 12-01 Implementation
JI/T8779—1998
This standard is a revision of ZBJ62091-90 Technical Requirements for Superhard Material Large Surface Full Press. Compared with ZBJ62031-90, there are some changes in the following major technical contents:
Specified the requirements and inspection methods for temperature! 1. Increased the safety use requirements for the purchaser.--Added the conditions for type inspection, added the requirements for model editing and deletion; added the requirements for electric heating system. This standard will replace ZBJ62031-90 from the date of entry into force. This standard was proposed and implemented by the Ministry of Machinery Industry's Jinan Machinery Research Institute. This standard was first issued in April 1990. 1. Scope: Machinery Industry Standard of the People's Republic of China: Superhard Material Six-sided Hydraulic Press Technical Standard JB/T 8779·1998, which specifies the conditions, technical requirements, inspection and inspection rules of superhard material six-sided hydraulic press. This standard applies to large-scale hydraulic presses made of superhard materials (hereinafter referred to as medical presses) with oil as the transmission medium and with a single transmission (or with a booster).
Z Referenced Standards
The following standards contain signatures, which are cited in this standard and are considered as the provisions of this standard. When this standard is issued, the versions shown are valid. All standards are subject to revision. When this standard is issued, the parties to the standard should consider the possibility of using the latest versions of the following standards. GR191-60
GB/T5226.1
GB723S-87
GR7535-87
GB 1C923:R9
GB/T 13s06 9!
2623-84
B3SJ5-R5
JB/T R356.1-9G
ZE150 011- 89
ZRJ50013-89
J6200186
ZB J62 006.1B7
ZR J62 030.60
3 Precision
Packaging storage and transportation pictorial symbols
Industrial machinery and electrical equipment Part 1; General technical parts Ultrasonic flaw detection and quality rating standards for hydraulic components General technical parts
Pressure machine plate precision inspection general rules
Pressure machine technology, acoustic measurement method
Pressure machine special technical records
Machine tool packaging technical records
Machine tool Coating technical conditions
Machine tool anti-rust technical conditions
Forging machine press system purity
Fake press secret sound limit hydraulic press noise limit pressure machine model editing method
3.1 Before the condition inspection, the installation water of the material press should be adjusted, and a level should be placed on the lower flange of the press in a vertical direction without any bearings. The reading of the level should be greater than 0.2/100.
3.2 Special inspection T tool requirements
3.2.1 The surface difference of the lower working plane is 0.(C5mm (and the middle can be). 3.2.2 The vertical distance between the axis of the working cylinder (test body) and the working plane is 0.008mm 3.2.3 The rotating sleeve installed on the working cylinder should have a minimum extension and a very light indicator should be used to ensure that there is no rotation and no impact on the original.
3.2.4L The body of the component shall comply with the provisions of Table A1 in Appendix A of GB10928. Approved by the State Administration of Industry and Information Technology on July 17, 1988, and implemented on December 1, 1998, JB/8779-199x, 3.3 The surface roughness R of the small cube (red cube) is 1.6m, the size error is not more than 0.020m, the verticality of the adjacent planes and the parallelism tolerance of each relative plane are 0.02 mm, 3.4
The inspection of accuracy is shown in Table 1:
Inspection of production
Equal commercial degree
The same plane
Policy large single dye
Axis to different
-large block
Original
Production seat>
Pressure pieces before pressing
Trial of joint production shop
4 Technical milk practice
General requirements
Medical and electrical same:
Step accuracy
(Installation decision
Before and after being pressed
Always
Shrinkage difference!
Standard tools
Body gauge,
Standard force method
1. Two pairs of large blocks to be tested are respectively adjusted to the center of their travel by pressure inspection tool, and the other pair are respectively adjusted to 3 positions of their travel.
2. Fix the special inspection tool on the station surface of the large block
, and understand the need to install the indicating probe on the rotating sleeve: respectively touch the surface of the cylinder to record the readings of the four large axes of the indicator.
3. According to the above method, the special inspection tool is also tested on the left and back of the large staining block. The maximum difference between the two is the same as the standard.
1. Light detection and record the size value
of the positive test piece [such as medicine], according to the written "", "front\", "with\ direction, put the person with double work photos, and make music (without adding layers, take the heart pressure.
2. Calculate the positive scale items before and after
LI: F=LL
The front and back of the cube music heart
The test piece is as follows,
L,,,.-The size of the test piece after the cube medical system
.
3. Pressure output stem (always music effect)
4. Take the second decision, the synchronous station should be the mother | |tt||The above-mentioned types of designs
4.1.1 The characteristics of the press machine shall comply with the provisions of this standard and shall be manufactured in accordance with the medical and technical documents approved by the prescribed procedures. 4.1.2 The model and layout shall take into account the requirements of aesthetics of the workmanship, the appearance shall be beautiful, and it shall be convenient to use, maintain, assemble, disassemble and transport. 4.1.3 The operation and degradation shall be interconnected and shall comply with the provisions of relevant specifications and technical documents. 4.1.4 The accompanying technical documents shall include specification certificates and instructions for use. The contents of the instructions shall include the provisions on performance modification, structure, installation, transportation, storage, recovery and safety. 4.1.5 Some components of the assembled parts shall have relevant identification marks, and the channels of the pipelines and hydraulic components shall have dustproof signs. 3
[B/T8779—19 No. 8
4.1.6 The model of the press should comply with the provisions of ZRJ62030. 4.2 Parameters and dimensions
The parameters and dimensions of the machine should be selected according to the recommendations of relevant standards. If there is no standard recommendation, it is recommended to confirm the parameters and dimensions approved by the prescribed procedures. 4.3 The original
The press should have sufficient accuracy and should comply with the relevant standards and technical documents. 4.4 The necessary auxiliary measures should be taken for the main connections (such as cylinders, sleeves, and springs) and comply with the provisions of relevant standards. 45 Safety protection requirements
4.5.1 The safety protection of the press should comply with the provisions of JB3915, including the design and selection of structures, components, hydraulic systems, application, configuration, adjustment and control, etc., and should be guaranteed under various conditions of use. Safety: 4.5.2 The buyer shall install personal safety protection devices and protective plates (walls) near the main and its molds (pre-chains). If the supplier is required to provide them, it should be noted in the contract or the cooperative design. 4.5.3 The buyer shall establish a regular inspection and correction, replacement and pressure adjustment system for the high-pressure parts of the compressor to ensure the safety of the compressor. 45.4 There shall be protective devices on the main engine and supercharger to prevent accidents. 4.5.5 The exposed windows of the main engine shall have guard plates, and the exposed couplings shall have protective covers. 45.6 Parts that may fall off, such as pins, shall have anti-falling devices. 4.5. For one-way motors, the arrows of the direction of rotation shall be marked on the exposed parts. 4.5.B The selection of all pressure reducing components shall not exceed the technical specifications specified by the components. 4.5.9 All components in the hydraulic system that affect the safety of the equipment shall be equipped with effective safety protection devices such as load and over-travel protection (such as safety alarm, over-travel buzzer, storage warning light, and automatic cut-off of the electrical system, etc.)>: 4.5.10. Hydraulic and electrical circuits should be used to prevent uncontrolled movement and abnormal dynamics during the start-up, stop, idle operation, adjustment and hydraulic fault correction of the pressure-deficient parts. 4.5.11 When the three-stage press is closed, it should be able to release the power or disconnect it from the hydraulic system. If it is a gas-powered device, it should be filled with nitrogen or other air, and should be kept away from heat sources and vertical installation. 4. Requirements for castings and forgings
4,6,1 The work of the press should comply with the relevant current standards and regulations, and the defects that do not affect the use, life and appearance of the press can be repaired according to relevant regulations before the quality is guaranteed. 4.6,2 Important forgings (such as chain beams, working cylinders, booster cylinders, high pressure cylinders and upper working pistons) should be treated to eliminate internal stress. 4.7 Requirements for processing
4.7.! The quality of the processed parts shall comply with the requirements of the technical documents and shall not have defects that reduce the safe use of the press and affect the appearance.
4.7.2 The processed surface shall not have rust, burrs, scratches and other defects. 4.7.3 The quality level of non-planar defects on the lugs of the steel parts is level 1 in G72.3, and the quality level of non-functional defects on other parts is level 3 in GB7233. 4.4 Ultra-high-pressure workpieces shall be inspected and the results shall comply with the requirements of relevant standards and technical documents. 4.8 Requirements for assembly
4.8. During subassembly and final assembly, gaskets and other parts not specified in the drawings shall not be installed. 4.8.2 The joint surfaces of the single pieces listed in the table should be tightly fitted and inspected. The depth of the gauge should not be greater than 2/4 of the actual contact width. The depth of the gauge should not be greater than 2/10 of the surrounding material. 4.8.3 The press should be assembled according to the assembly process. The six pistons and their bodies should be assembled within the processing range to ensure that the assembly tolerance is less than 0.05mm. The parts and core surfaces should not be damaged due to assembly. The assembled parts (including purchased and outsourced parts) should be of the same quality as those to be assembled. 4.8.4 The inner surfaces of the cooling system and the cooling system should be lubricated and decontaminated before assembly. 3
JB/T 8TT91998
4.85 All circuits, pipe joints, flanges and their fixed and movable joints shall be connected and sealed in good condition without any leakage. 4.8.6 The cleaning quality of the hydraulic system shall comply with the provisions of 7FJ62001. 4.9 Requirements for electrical equipment
The electrical equipment of the press and the pressure pump shall comply with the provisions of GB/T5226.1. The electrical box shall be in accordance with the specifications. The single-insulated resistor of the main engine electric heating part should meet the use requirements
4. 10 The quality of the liquid filling
4.10.1 Test requirements
4.10.1.1 The ultra-high pressure valve body that bears the pressure should comply with the relevant standards. The opening should be tested before assembly. The pressure test of the hydraulic cylinder and other pressure vessels shall meet the following requirements. The pressure holding time should be greater than or equal to 10min, and there should be no permanent deformation and other damage.
a) When the rated pressure is less than or equal to 20MPa, the pressure test should be 1.5 times the rated pressure; h) When the rated pressure is greater than 20MPa and less than or equal to 70MPa, the pressure test should be 1.25 times the rated pressure c) When the rated pressure is greater than 70MPa, the pressure test pressure becomes 1.1 times the rated pressure. 4.10.1.3 Self-made liquid! The pressure holding time and requirements of the parts' optical break test shall comply with the provisions of GB7935 for high pressure hydraulic parts and the provisions of Table 2 for ultra-high pressure hydraulic parts.
Table 2 Ultra-high pressure resistance test requirements
New rated output
4. 10. 2 Pressure drive requirements
Pressure resistance pressure is 1.3 times the pressure
When maintaining pressure, there shall be no permanent deformation and
other damage phenomena
Liquid-disc drive parts shall be movable and blocked> Within the specified speed range, there shall be no operation or creeping phenomena. During reversing and pressure relief, there shall be no impact phenomena that affect normal operation:
4.10.3 Requirements for pressure system
4.10.3.1 The safety technical requirements for the pressure system shall comply with the relevant provisions including 1.5. 4.10.3.2 The necessary exhaust devices shall be set as needed, and the exhaust shall be convenient. The range of the pressure gauge is 1.52mm/s. 4.10.3.3
4.1%. 3.4 When designing the hydraulic system, necessary measures should be taken to ensure that the oil viscosity (or the temperature of the pressure wave recording port) is 15~30℃. The automatic efficiency converter should be used, and the working oil filter and the cooling medium humidity measuring points should be set separately. When using the heater, its gauge pressure potential power should not be greater than 0.? ?/m. The pressure maintenance performance of the compressor <pressure maintenance degree> should meet the requirements of Table 3. 4.10.3.5
Pressure-maintaining performance of compressor
Standing force
Single-hill nominal square
>wo~0ou
+F000~10053
Pressure-maintaining performance
4.10.3.6 The pressure-maintaining performance shall comply with the relevant standards and regulations. 4.10.3.7 Pressure-retaining components
JB/18779-199B
The technical requirements and connection dimensions of hydraulic components shall comply with GB7935 and relevant regulations. When using plug-in or added pressure-reducing components, between the pressure-reducing components and their corresponding flow control components, it is generally considered to set a convenient test 1. For the sudden change of the pressure, the load capacity should not be greater than the rated value 1.1. The operation should be sensitive and reliable, and a locking mechanism must be provided to prevent accidents caused by arbitrary pressure adjustment. The technical requirements of the pressure regulating valve shall comply with the provisions of (BJ7935) and meet the requirements of the pressure regulating standard of the press. The pressure regulating accuracy of the pressure regulating valve shall comply with the provisions of the relevant standards. 4.10, 3.8, the control force of the low-pressure control system shall be reliable and meet the requirements of the relevant standards. 4.11 Requirements for appearance
4.11.1 The outer surface shall not have any protrusions and unevenness that are not specified. 4.11.2 The coating of the metal surface shall comply with the requirements of ZBJ50011. 4.11.3 The front of the head should not protrude from the surface of the part. There should be no obvious storage center between the head and the countersunk hole. The rear pin should protrude slightly from the outside of the part, and the tail end should protrude slightly from the screw. 4.11.4 The parts are connected and there should be no obvious increase in position. The door, the whole and the joint surface should not have a star-like feeling. 4.11.5 The outer surface should be Finish straightening and evenness. 4.1I.6 The external parts of electrical and pressure-related circuits should be covered and arranged neatly. They should not be in contact with relatively moving parts. If necessary, they should be fixed with pipes.
4.11.7 Various signs should be clear and durable. The signs should be fixed in obvious positions. The positioning of the signs should be correct, flat, firm and not skewed. 4.11.8 The material of the signs shall comply with the provisions of 3/F13306. 5 Inspection
5.1 Requirements
5.1.1 Before calibration, the press should be installed and adjusted. The installation level should meet the requirements of 3.1. 5.1.2 During the inspection, the performance of the press, the structure and parts should not be affected. If replaced, they should be retested. 5.1.3 The inspection should be carried out on the assembled machine. Except for the parts that need to be removed during the inspection as specified in the standards and technical documents, the parts that should not be removed
5. 1.4 During the inspection, the power supply sequence is normal. 5.1. During the inspection, all the weaving machine supports of the press should be turned on. 5.2 Appearance
5.2.1 During the type inspection, evaluate whether the outer shape and layout of the machine meet the requirements of 4.1.2. 5.2.2 Check the appearance quality and it should meet the requirements of 1.11. 5.3 Accessories and accessories
Check the components of the random accessories and it should meet the requirements of 4.1.3. 5. 4 Vertical and size
Check the actual size and it should meet the requirements of the relevant standards or technical documents. 5.5 Quality issues
5.5.1 Check the processing quality of parts and it should meet the requirements of the drawings and technical documents. 5. 5. 2 Check the assembly quality and it should meet the requirements of 4. 8.5.6 Safety inspection panel
Inspection of the protective surface of the equipment, complete and in accordance with 4.5. 5.7 These performance tests
should be carried out in conjunction with the running test and load test. The performance test method is as follows. 5
JB/T7791998
5.1 Start and stop test chamber, note that the continuous test should be greater than or equal to three groups - the action should be sensitive and reliable. 5.7.1 Main engine, amplifier and corrector tight running test, continuous test greater than or equal to two times, the action should be sensitive and reliable. 5.3 Limit adjustment test of engine travel: adjust within the operating range, the action should be accurate and reliable. 5.4. Adjust the piston stroke speed of the main engine. Adjust according to the specified maximum free stroke increment. The action should be accurate and reliable and meet the requirements of relevant standards or documents.
5. Pressure valve adjustment test: Test from low to high opening in stages as specified in the technical documents. Each pressure test should be stable and reliable.
Safety device test: Equipped with weak emergency transmission points and tight total pressure protection. When the accidental voltage is restored, the electric drive device will automatically switch on. The action test of the alarm (or wall sound) warning light, etc. should be safe and reliable. 5.7. Each of the following safety tests should be carried out in combination with the overload test. The number of action tests should be greater than or equal to three. It should be sensitive and reliable, and it should be derived from 4. 1.3.7.
5.8 Idle running test
5.8.1 The piston of the compressor shall be tested for idle running with full stroke and reciprocating motion. The continuous idle running time shall be not less than 4h. During the type heat test, the continuous idle running time for each time shall be not less than 8h. The cumulative continuous idle running time shall be not less than 6.5.8.3 Oil temperature
After the oil temperature in the oil (or the temperature at the liquid inlet) is measured and recorded when it reaches a stable value. The temperature shall not be higher than 50℃ (the standard products produced in batches may not be measured, but random inspection is allowed) 5.S.3 Working conditions of each machine tree:
a) Check the stability and smoothness of the movement of the actuator. b) Check all high and low pressure systems, cooling systems, pipelines, heads, flanges and other connecting joints. They shall be well sealed and there shall be no pools, water static and other irregularities. C) Check whether the display capacity is correct and reliable. 5.9 Noise
5.9.1 Determination of noise power level [Type inspection] According to the method specified in JT3623: Determine the noise level of continuous running without load, and its value should not exceed the provisions of ZBJ620C6.1. 5.9.2 Determination of sound pressure level
According to the method specified in JB323, determine the positive level of continuous running without load, and its value should not exceed the provisions of 6.1 of type 762. 5.10 Electrical and heating system
Inspect the electrical and heating system according to GB/T5226.1. 5.11 Load test
5.11.1 Each machine should be tested at full load after passing the no-load operation test. 5.11.2 Voltage regulation test, according to the specified pressure level, increase the pressure step by step, the operation should be stable and reliable, and the temperature opening and sense of hysteresis should meet the requirements. 5.11.3 Under the rated pressure, the continuous operation test time shall be not less than 1.51. Check the system's pressure, leakage, nominal force and main motor current, which shall comply with the relevant provisions.
5.11.4 Under the rated pressure, the reverse pressure holding test, the pressure drop shall comply with the provisions of Wu 3: 5.11.5 The mechanism shall work normally during the test. 5.12 Overload test
The load test shall be carried out with the safety net adjusted to 1.1 times the rated pressure, and then adjusted for not less than three times. The components of the machine shall not be damaged or permanently deformed, and the pressure system shall not have static failure and abnormality. 5.13 Precision inspection
Perform precision inspection according to the requirements of Chapter 3.
5. 14 Cutting angle inspection
The thickness inspection shall be in accordance with the provisions of relevant standards or technical documents. G
5.15 Others
JB/T 8779--1998
Perform other inspections according to the technical documents and other contents listed in the purchase contract. Specification inspection rules
The acceptance of presses is divided into factory inspection and type inspection. 6.1 Factory inspection
6.1.1 Each cloud machine can be shipped only after passing the factory inspection at the manufacturer. 6.1,2 Delivery! The inspection contents include:
a) appearance;
b) parameters and dimensions of parts and tools;
s) processing and matching quality;
s) complete supporting devices;
|) performance test:
b) idling test;
6) sound level;
\ electrical system:
load test
k) inspection of geometric conditions;
1) others.
6.2 Type inspection
6.2.1 Type inspection shall be carried out in all the following cases. Only after passing the type inspection can formal production be carried out: 1) Trial production plan for new products or old products transferred to the factory for production; b) Formal production such as when there are major changes in the structure, quality and manufacturing process of the main parts; 2) When the production is resumed after more than one year of suspension:
>When the national quality supervision agency proposes a type inspection request. 6.2.2 Inspection contents include:
Appearance:
b) Accessories and tools:
Parameters and dimensions;
) Quality of postal equipment;
Safety accessories:
Performance test:
g) Noise test (sound pressure cracking, sound frequency level);
i) Electrical system:
Load frequency test:
k) Precision pull test (G, three-dimensional precision P)! ! Negative micro test;
m>it.
Marking, packaging, transportation and storage
7.1 The exterior of the machine should be marked with some fixed signs. The label shall include the following contents: 7) Company name and address; b) Press model and basic performance; c) Year of manufacture and serial number 1 Others. JD/T87791998 7.2 Each press shall have a trademark (the trademark can also be printed on the label). 3 The packaging of the parts of a genuine press shall comply with the provisions of ASTM/T8356.1, take balancing measures to prevent dumping, and comply with the requirements of transportation and loading.
.4 The markings on the machine packing box should include "overall dimensions", "cautions", "center of gravity", "net/gross weight", "starting point" and "protection against fans", etc., and should comply with the provisions of GB191.
.5 The working components, refrigeration and filters, etc. should be exhausted from the box body. All external openings of the pressure system should have reliable sealing measures. 7.6 The rust prevention of the external processing of components, accessories and spare parts should comply with the provisions of GB5013.1 times the rated force, and then adjusted for no less than three times. The machine parts shall not be damaged or permanently deformed, and the pressure system shall not have static electricity and other non-functional effects. 5.13 Precision inspection
Carry out precision inspection according to the requirements of Chapter 3.
5.14 Accuracy inspection
Accuracy inspection shall be carried out in accordance with the provisions of relevant standards or technical documents. G
5.15 Others
JB/T 8779--1998
Inspect according to other contents listed in the purchase contract of relevant technical documents. Specification inspection rules
The acceptance of presses is divided into factory inspection and type inspection. 6.1 Factory inspection
6.1.1 Each cloud machine can only leave the factory after passing the factory inspection at the manufacturer. 6.1,2 Delivery! The inspection contents include:
a) appearance;
b) parameters and dimensions of parts and tools;
|processing quality;
s) complete supporting devices;
|) performance test;
b) idling test;
6) sound level;
|electrical system:
load test
k) inspection of geometrical conditions;
1) others.
6.2 Type inspection
6.2.1 Type inspection shall be carried out in all the following cases. Only after passing the type inspection can formal production be carried out: 1) Trial production plan for new products or old products transferred to the factory for production; b) Formal production such as when there are major changes in the structure, quality and manufacturing process of the main parts; 2) When the production is resumed after more than one year of suspension:
>When the national quality supervision agency proposes a type inspection request. 6.2.2 Inspection contents include:
Appearance:
b) Accessories and tools:
Parameters and dimensions;
) Quality of postal equipment;
Safety accessories:
Performance test:
g) Noise test (sound pressure cracking, sound frequency level);
i) Electrical system:
Load frequency test:
k) Precision pull test (G, three-dimensional precision P)! ! Negative micro test;
m>it.
Marking, packaging, transportation and storage
7.1 The exterior of the machine should be marked with some fixed signs. The label shall include the following contents: 7) Company name and address; b) Press model and basic performance; c) Year of manufacture and serial number 1 Others. JD/T87791998 7.2 Each press shall have a trademark (the trademark can also be printed on the label). 3 The packaging of the parts of the press shall comply with the provisions of 8356.1, take balancing measures to prevent dumping, and comply with the requirements of transportation and loading.
.4 The markings on the machine packing box should include "overall dimensions", "cautions", "center of gravity", "net/gross weight", "starting point" and "protection against fans", etc., and should comply with the provisions of GB191.
.5 The working components, refrigeration and filters, etc. should be exhausted from the box body. All external openings of the pressure system should have reliable sealing measures. 7.6 The rust prevention of the external processing of components, accessories and spare parts should comply with the provisions of GB5013.1 times the rated force, and then adjusted for no less than three times. The machine parts shall not be damaged or permanently deformed, and the pressure system shall not have static electricity and other non-functional effects. 5.13 Precision inspection
Carry out precision inspection according to the requirements of Chapter 3.
5. 14 Accuracy inspection
Accuracy inspection shall be carried out in accordance with the provisions of relevant standards or technical documents. G
5.15 Others
JB/T 8779--1998
Inspect according to other contents listed in the purchase contract of relevant technical documents. Specification inspection rules
The acceptance of presses is divided into factory inspection and type inspection. 6.1 Factory inspection
6.1.1 Each cloud machine can only leave the factory after passing the factory inspection at the manufacturer. 6.1,2 Delivery! The inspection contents include:
a) appearance;
b) parameters and dimensions of parts and tools;
|processing quality;
s) complete supporting devices;
bzxz.net|) performance test;
b) idling test;
6) sound level;
|electrical system:
load test
k) inspection of geometrical conditions;
1) others.
6.2 Type inspection
6.2.1 Type inspection shall be carried out in all the following cases. Only after passing the type inspection can formal production be carried out: 1) Trial production plan for new products or old products transferred to the factory for production; b) Formal production such as when there are major changes in the structure, quality and manufacturing process of the main parts; 2) When the production is resumed after more than one year of suspension:
> When the national quality supervision agency proposes a type inspection request. 6.2.2 Inspection contents include:
Appearance:
b) Accessories and tools:
Parameters and dimensions;
) Quality of postal equipment;
Safety accessories:
Performance test:
g) Noise test (sound pressure cracking, sound frequency level);
i) Electrical system:
Load frequency test:
k) Precision pull test (G, three-dimensional precision P)! ! Negative micro test;
m>it.
Marking, packaging, transportation and storage
7.1 The exterior of the machine should be marked with some fixed signs. The label shall include the following contents: 7) Company name and address; b) Press model and basic performance; c) Year of manufacture and serial number 1 Others. JD/T87791998 7.2 Each press shall have a trademark (the trademark can also be printed on the label). 3 The packaging of the parts of a genuine press shall comply with the provisions of ASTM/T8356.1, take balancing measures to prevent dumping, and comply with the requirements of transportation and loading.
.4 The markings on the machine packing box should include "overall dimensions", "cautions and weight", "center of gravity", "net/gross weight", "starting point" and "protection against fans", etc., and should comply with the provisions of GB191.
.5 The working components, refrigeration and filters, etc. should be exhausted from the box body. All external openings of the pressure system should have reliable sealing measures. 7.6 The rust prevention of the external processing surface of components, accessories and spare parts should comply with the provisions of GB5013.
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