JB/T 8694-1998 Technical requirements for reciprocating piston oxygen compressor reticulated valves
Some standard content:
ECS23.14D
Machinery Industry Standard of the People's Republic of China
JB/T86941998
Reciprocating piston oxygen compressor reticulated valve
Technical conditions
Specifications for gauze gas valves used inreciprocating oxygen 1998-113-19 Issued
Ministry of Machinery Industry of the People's Republic of China
1998-(7-01 Implementation
JE/T8694—1998
This standard is proposed and managed by the Technical Committee for Standardization of Gas Separation and Chemical Equipment of the Ministry of Machinery Industry. The responsible drafting unit of this standard is Kaifeng Air Separation Group Co., Ltd. The drafting units of this standard are Hangzhou Oxygen Generator Group Co., Ltd., Yuhuan Petrochemical Machinery Factory, and Jiangsu Changjiang Oxygen Generator. The main drafters of this standard are Zeng Guoming, Niu Yiyan, Yu Yongle, Huang Zhengji, and Song Mingguo. 1 Scope
Machinery Industry Standard of the People's Republic of China
Forward Piston Oxygen Compressor Reticulated Valve
Technical Parts
Specifications forauze as alyts used Inredprocating ozygen conpressor JB/T 8694-1998
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging and storage of the reticulated valves for oxygen compressors. This standard applies to the reticulated valves for oxygen compressors (hereinafter referred to as reticulated valves for other gases). This standard also applies to the reticulated valves for other gases compressors. 2 Reference standards
The provisions contained in the following standards shall become the reference texts of this standard through the use of the reference standards in this standard. When this standard is published, the versions shown are valid. All standards will be verified and the latest versions of the following standards shall be used as the reference standards. GS/T 23G-91
CB23L-82
GE/T10311995
GP/T1184—199m
GB/T 1220-- 92
GR/T 328192
GR4986-85
GR/T 1056189
GB/T_329391
GB/T -329991
I/T 7944-GG
3 Technical requirements
Metal fittings hardness test method
Metal fabric width test method
Surface torsion parameters and their values
Shape and position tolerances Technical notes Tolerances Specifications Not applicable Steel warehouse
Stainless steel acid test key chain control conditions
Stainless steel cold thorn plate
Rotary iron plate
Microscopic evaluation method for non-metal inclusions in steel
Metal microscopic group inspection method
Evaluation method for metal microstructures
Defective rotary porcelain pushing and mixing inspection
Stainless steel wire
3.1 The materials of the main parts in the gas inspection shall be in accordance with the provisions of the clothing. The materials that can be guaranteed to meet the design requirements after testing can be used: ceramic pieces, oil-relief pieces, etc. The materials in the preparation shall have the quality certificate of the material manufacturer. 3.2 The steel plates for manufacturing valve plates and grade products should be made of steel with air smelting or lathe remelting weight. The quality inspection shall meet the following requirements: The solidified plates are flat and free of folds, cracks and bubbles; 6) The steel plates shall have no metal inclusions. Grade 1.5, A, B, C, etc. The impurities shall be less than the requirements of GB/T1209-91-5 for grade 1 and a half:
c) The steel plates shall have carburization distribution, and there shall be no chain-like carbides. The carburization bands shall be less than the requirements of GB/T1209-91-2 for grade 2:
3.3 The metallographic structure of valve plates and lead punching plates shall be solid or free-grained martensite. 3.4 The viscosity of the main components shall be in accordance with the requirements of Table 2. Approved by the Ministry of Machinery Industry on March 19, 1999, implemented on July 1, 1996, military name, hospital film punch, flash bullet, general, (hereinafter referred to as bullet) 1 Name, lift stop limiter, acid-resistant stainless steel valve, stainless steel valve, reduced-rolled steel plate, punch, general, monthly unequal wire making, JB/T 8694—1998
ac'ria
1C-1N17Mo7Ii
Mr17Ni12Mo2
CCEIPNiR.AbZxz.net
Special valve piece sealing process
The fitting surface with collar piece
South sheep surface
Two planes
The plane of the belt and the passing floor
Two surfaces
3.5 When the main parts are made of the materials shown in Table 1, their hardness values shall conform to the specifications in the table. Table:
Name
Buffering plate, buffering plate
: 19--45HRC.
235--269HB
25--30HRC
36 The shape and other tolerances of the main parts shall comply with the provisions of Table 1. 3. The thickness difference between the two plates or buffering plates shall be less than or equal to the provisions of the following table. 38. After the buffering plate is processed, the whole walk should be eliminated. 3. The plates and punching plates that have been treated to eliminate internal stress shall not be flattened by hitting.
CB/T1220
GB/T328n
According to the contract
Pressure R(G1)
.12.ou
Company's single-piece
3.10 The surface of the negative sheet and the punching sheet shall not have defects such as marks, joints, rust, hardness tester indentation and cracks that affect the strength and separation performance.
The ring of the punching sheet shall be smooth, and the radius of the inner and outer edges of the ring shall be R20.2mrrL. The plates, standard punching plates, valve seats, lift control devices, etc. should not have magnetic, rare clams, production type drop tools, negative films, no blood films, JR/T8694, shape public welfare and position stomach public ticket name program, each and every photography equipment measurement program south auxiliary dynamic vertical force shape precision inside and outside the shape of the support life to operate the hanging coordination dilemma surface breeding some can output skin external hole position management degree, one piece of punching capital hole position toe, externality experience, two pieces and a half of public welfare, limit calculation flat commercial document tolerance, "Chinese waste is a single kidney with external guard, 21 for the elastic British self-produced high safety, -139--200, accuracy and other identification (r:1 128), small transport under 0 level, tt, .2n mms
not used for effect
1 is lower than 11 paper
2e u. u2,
:-215~55r
piece, condensation production can be driven by the sense of force test requirements test and the whole force method and the whole force standard mountain world need to cooperate with the design, the test purpose is carried out 3. 13
wave sense pressure
3.14 forged air pressure and lift limiter into specification to eliminate the card scratch, apply high light stain. 3.15 the valve seat and lift limiter product characteristics are beautiful and visible, and there shall be no cracks, sand limit, standing sand, ball whole, too much inside, scar, light enough and other defects that affect the strength and external welcome, the flow channel shall be smooth
3.I6 the valve seat cover shall not be self-flowing, pore cracks, punctures and marks, 3. 17
3.1% The limit difference of the size of the spring should meet the following requirements (for cut-off springs, please refer to the implementation): a) Specify the height H. The negative amount (P>) of the extreme error table S. Table $
First common management
h) The spring should be fixed
According to the small deviation position
JR/T 8694-1998
1 The middle diameter of the shaped bullet is 0, the actual diameter is 3,. The diameter of the copper wire is. 2 The middle diameter of the shaped bullet refers to the average position of the middle diameter of the fast belt measurement, c The limit of the spring is from the book limit of the spring 8 Table 8
Extreme adjustment
d) When the spring is pressed to the amount of deformation, the upper pitch should not be replaced by the title 3.20 The surface of the bullet jacket should be smooth and should not have any stains, layers, folds, corrections, expansions and other defects. >~
2-8 ~1
3.21 The two ends of the bullet should be equally ground and the thickness of the bullet should not be less than 33. 22 The width or quality of the bullet should be pressed and the deformation should not be greater than 0. .3. 23 The bottom of the valve assembly should be removed.And clean. 4 Test method
Valve plate, burst plate steel plate non-metallic materials in the microscopic evaluation of the old sample material and the production of each loss / 1061-2 chapter 4.1
provisions.
4.2 The metallographic inspection of the plate and oil film (G230 or G231/factory regulations 4.3 Appendix, the metallographic inspection of the track film is in accordance with GB/T1528, 4.4 The water-change type test, the spring and the spring film are measured at the second and third film after the difference in the current island, 4.5 The test of the spring material should not be carried out in the precision test machine of the spring material, 46 The test of the spring material is carried out directly, the flat plate and the wide seat are also in the continental area, the verticality of the spring line to the end is under no-load state, the spring wing to the width belongs to the first rotation-week, and then the second end of the verticality is checked again (Figure 1). National I
JB/T 8694--1998
4.T The surface quality of the spring is inspected by a large five-point magnifying glass. 4. The test method of spring penetration of the screw captive spring shall be carried out in accordance with the test method of the solid spring. The maximum value of the verticality of the cross section is the maximum difference between the expected height and width of the seat. 5.1 When the valve plate and buffer plate are made of plate material for the test, the non-metallic impurities shall be evaluated by microscopic inspection according to GB/T13299. 5.2 The size and surface quality of the gas components and valve seat, limiter, two-piece, buffer plate, spring, etc. shall be inspected piece by piece by the quality inspection department according to the provisions of this standard and product drawings and technical documents, and the product quality certificate shall be attached. 5.3 The surface quality of the lubrication seat, test piece and line punching piece shall be checked by batch sampling according to the batch heat treatment, material and specifications. No less than 3 samples shall be taken from each batch. If there is still no sample after the sampling result, the batch of pieces shall be judged as six sets of products. 5.1 The metal fabric of valve and satin pieces shall be checked by batch sampling according to the batch heat treatment, material and specifications. No less than 3 samples shall be taken from each batch. If there is one unqualified sample after the sampling result, it shall be re-tested. If there are still discrepancies, the batch of parts is judged to be unqualified:
5.5 The valve is tested by the flatness of the impact, and the flatness (flat plate accuracy is not less than the 1st grade precision seat in CB4986) is tested with a round head ruler larger than the allowable value. If the penetration depth is not less than one card of the ring width, it is a qualified product. The inspection part does not include the intermediate part
5.6 The inspection of the oil replacement should be carried out according to the 3B/7S44 standard. The inspection of the elastic density should be carried out after the permanent deformation test, and then the strength deviation of the size chain and the surface quality particle inspection
5.7 The inspection of the truncated screw family should be carried out according to the inspection rules of the round screw. 5.8 After the gas assembly, the valve and the buffer plate should be checked for any changes, and there should be no obstruction. When the film is tested with baking oil for full-scale inspection and leakage test, only dripping is allowed. After the test, the bottom should be cleaned and dried. 6. Marking, packaging and storage
6.1 When the product leaves the factory, it shall be packed with non-water- and light-corrosion-resistant packaging materials. 6.2 When the product leaves the factory, the packaging shall be accompanied by the product quality certificate. The product quality certificate shall include the following: a) Manufacturer and address:
b) Product name, model (manufacturing number):
Trademark:
d Material brand (single component)
e) Manufacturing date:
Quality certificate
63 After the product leaves the factory, it shall be placed in the original room without dry and corrosive gas. The anti-rust period shall not exceed 5
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