JB/T 9761-1999 Technical requirements for crankshaft thrust washers for internal combustion engines
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T 9761—1999
Internal combustion engines
Crank shaft half thrust weshers-Specifications
1999-09-17 Issued
National Bureau of Machinery Industry
20HH-01-01 Implementation
JBT9761—1999
This standard is a continuation of ZBJ92D02-88 "Technical Specifications for Crankshaft Thrust Washers for Internal Combustion Engines". Editorial modifications were made to the original standard during the revision, and the main technical contents remained unchanged. This standard replaces ZBJ92002-88 from the date of implementation. Appendix A of the standard is the appendix of the standard.
This standard is proposed and managed by the National Technical Committee for Standardization of Internal Combustion Engines. This standard was drafted by: Shanghai Internal Combustion Engine Research Institute. This standard was first issued in 19%.
China Machinery Industry Standard
Internal Combustion Engine Crankshaft Thrust Washer
Technical Conditions
Tnternal combustian anginesCrauk shaft half thrust washersSpecllcations
JB/T9761—199
Replaced with ZBJ92002—8K
This standard specifies the name, code and structural type, technical requirements, inspection rules and marking, installation, transportation and use of crankshaft stoppers for internal combustion engines.
This standard is applicable to tractors, trucks, and other engines with a gas diameter of less than 200mm. 1. Thrust washers (hereinafter referred to as stop washers) on crankshafts of injection-molded internal combustion engines with a gas diameter of less than 200mm are used. 1. Thrust washers made of the same material as the same material within the range of 1. (Except for special design requirements), must comply with the provisions of the standard. 2. Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the version shown is valid. All the standards will be revised. Departments using this standard should discuss the use of The latest version of the following standards shall be used for the following purposes. GB/T699-1999
(iB.T2828-19B?
JB/136571984
JB:7491999
High-quality carbon steel
Batch inspection counting sampling procedures and sampling tables (applicable to continuous batch inspection) Metallographic standards for automobile engine bearings, lead-based and lead-based alloys, internal combustion engine castings Metallographic inspection of lead alloy bearings 3. Water, code and structure type
"Terms and codes
Terms and codes of stop bearings are shown in Table 1.
Alloy layer thickness
Position tongue part business
Determination according to the standard of the Ministry of Industry and Information Technology
National Beijing Machinery Industry Bureau approved on September 17, 1999
Thrust bearing outer return direction record size stop bearing inner diameter square base This dimension HP-132
Basic axial dimension of thrust washer
Axial dimension of thrust washer alloy layerHeight dimension of positioning tongue from top to butt joint planeHeight dimension of positioning part to butt joint plane
2000-01-01implementation
Width of positioning tongue
Width of oil groove bottom
Thickness of oil groove bottom wall
Chamfer of oil groove
Micro love flower|| tt||Steel back wind angle
Positioning and flat corner radius
Alloy surface or solid market
Half width of the surface
Alloy in the surface example with deep
Alloy surface and thinning depth
Alloy surface thinning flow
Alloy surface angle
Flatness
Structural type
JB door 9761-1999
Table (End)
Basic dimensions of the actual tongue width
Basic dimensions of the bottom in the axial direction
Basic dimensions of the bottom in the axial direction
The relative distance between the center of the oil mold surface and the center of the oil mold width, the side angle or the half angle between the thrust washer and the outer surface, the four corner radii of the butt joint and the half of the return of the positioning tongue root, and the inner and outer return surfaces. The angle ruler is small and the radius is too large to make the plane dead dimension
at the butt plane, the price surface reversal dimension, the alloy surface at the butt plane, the cutting rate dimension of 1:1 at the butt plane, the cutting height dimension on the convex metal surface at the butt plane, the alloy surface angle at the butt plane
the alloy surface is connected with the butt plane, and the limit angle radius between the steel back and the alloy is shaped. The typical structural type of the thrust washer is shown in Figure 1 and Figure 2. It is recommended to adopt the structural type in Figure 2: A
without locating
b) with locating tongue
4 Technical requirements
JRT9761—1999
4. "The product should be filmed according to the product drawings and technical documents approved by the prescribed procedures. 4.2 Materials
4.2.1 Steel back
The back material shall be 08A1, 08, 10, 15 steel specified in GB/T699--1000 or other materials approved by the prescribed procedures 4.1.1 Alloy
! Aluminum alloy:
b) Copper-based alloy:
c) Aluminum H alloy,
The grades, chemical composition, metallographic structure and mechanical properties of the above alloys are shown in Appendix A (the standard is 4.3 Dimensions and tolerances
4.3.1 Tolerance of outer diameter D
The tolerance of outer diameter D of thrust washers is specified in Table 2. Table 2
>120-.160
4.3. 2 Tolerance of inner diameter 4
The tolerance of inner diameter d of thrust washer is specified in Table 3. 3
Outer diameter D
>120-160
Note: The difference between outer diameter and inner diameter of thrust washer should be greater than m.4.3.3 Tolerance of height H
Limit deviation of inner diameter
The tolerance of height of thrust washer is specified in Table 4 Provisions, outer diameter D
>120-160
4.3,4 thickness and tolerance
JB/T976I—1999
The root limit deviation
of the height of the thrust plate should preferably adopt the value of "*\" in Table 5, and the wall thickness tolerance is set in Table 5. Table 5
Outer diameter core
>80-120
> t20~160
4.3.5 Alloy layer thickness
The alloy layer thickness of thrust washer shall be in accordance with the provisions of Table 6, alloy material
Badi alloy
Remember some alloys
Aluminum-based alloy
4.3.6 Alloy thickness tolerance
Alloy original
0.25~D.75
0.30--0.90
Between The difference between the maximum and minimum values of the thickness of the gasket alloy layer shall be less than or equal to that specified in Table B. 7
Metal material
Babbitt alloy
Metal-based alloy
Aluminum-based alloy
4.3.7 Locating tongue
4.3.7. The dimensions and tolerances of the top height of the locating tongue shall be in accordance with those specified in Table B. 4
Tolerance of the layer tolerance
Limit deviation
4. 3. 7. 3
>8(160
JB/T9761-1999
Height of the original part
Basic size
Height of the base of the locating tongue Fo=Hpaia
(r.+0.5), the tolerance zone is:
The size and tolerance of the width A of the locating tongue shall be in accordance with the provisions of Table 9, Table 9
>80-120
>120-160
The tolerance of the locating tongue seat shall be in accordance with 1S13,
4. 3. 9
Basic size
The size and tolerance of the width center shall be in accordance with the provisions of Table 4. 3.9.
> 60160
Basic dimensions
The tolerance range of the oil-gating bottom wall thickness Ga is 0.30 mm. 4 3.9.7
The angle of the oil groove to the corner is 45°.
The tolerance of the oil-planting position Gx is as specified in Table 11. 4. 3. 9.4
>50~160
To corner or corner radius
Plant mesh deviation
.0.50)
Limit deviation
Limit deviation of oil position measurement center
The chamfer between steel back and outer surface should be *45, and the shear is a corner with a radius of. The following standard is used to determine the tolerance, that is: 4.3.10.1
The tolerance is ±0.20mm
JB/T9761—1999
0.3r,40.6mm
4,3.10.2 The angular ratio of the positioning tongue and the butt joint plane shall be as specified in Table 12, the alloy test surface angle or the two negative radii shall be as specified in Table 13Table 13
4.3.11 Butt joint plane
0.15(D4)/2
4. 3. 11. 1 Butt joint plane width Lsm-(Pd)/4 mm. If (Dd) /4 <3 mm, L=3 mmc4.3.11.2 When thinning the alloy surface at the butt joint plane, the following provisions shall be followed:) The alloy surface chamfer depth is 10.3 mm, and the alloy surface chamfer angle is 8 to 30°m
b) The alloy surface thinning depth is 0.25 mm, and the alloy surface thinning height is mm. The alloy surface is chamfered to a corner radius of 0.
4.3.12 Flatness
The flatness P of the steel back and alloy surface of the thrust washer shall be as specified in Table 14, Table 14
>80-120
>120~160
4.3.[3 Unspecified tolerances
For length and angle ratios without specified tolerances, the tolerance bands shall be as follows: length ±0.25mm; angle ±5%
4.4 Surface roughness
4.4.1 The surface roughness R value of the steel back is 1.60μm. 4.4.z The surface roughness R value of the alloy is 1.25μm.4.5 The alloy and the steel back shall be firmly bonded, and no detachment is allowed. 4.6 The steel back surface shall not have defects such as burrs, rust blocks, cracks, etc. 6
Surface
JB/T9761-1999
4. The alloy layer shall not have defects such as foreign matter, pores, shrinkage, etc. 4.8 The alloy surface shall not have scratches, bumps and crushing 4.9 Whether the positioning is allowed: the tool formed by the chamfering is allowed to be 1.1mm deeper than the maximum chamfering depth. 4.10 The warranty period of the thrust washer is 2000h. If the thrust washer is damaged due to poor manufacturing quality during the warranty period, the manufacturer shall provide the product for free.
5 Inspection rules
5.1 Inspection categories
a) Regular inspection:
b Inspection:
) Delivery acceptance.
5.2 Inspection items
) Overall dimensions;
b) Geometric accuracy:
) Surface roughness:
d) Physical and chemical properties:
) Appearance quality;
↑) Marking, packaging,
5.3 Oil sampling method
The sampling inspection rules formulated in GB2828 shall be implemented. 5. 4 Inspection method
5.4.1 Hardness test
The hardness test method of copper back and alloy shall be in accordance with the provisions of 15. Table 75
Bardi alloy
Provide, joint
Joint enterprise degree
> 0.5-0.7
All thickness
Inspection record
HV1:10
HB5/25/1RD
HBE/5/30
HH251.2550
1HV0.2/10 indicates that the Alfred hardness should be 1.96V before inspection, and the result should be obtained when loading for 10s. Lap-pressing
2HB5/25/180 indicates that the hardness of the cloth should also be obtained by clawing a ball head with a diameter of 5mml, under a test load of 245.17N, and the test time is 160s. 5.4.2 Test of the bonding strength between the alloy layer and the steel back JB/T9761-1999
Mainly by listening, the sound should be eliminated when tapping the steel back of the thrust washer, and no sub-sound should be heard. Instruments or destructive tests can also be used. The method of destructive testing is as follows:
Bend the thrust washer 90° toward the steel back, allowing the alloy layer to have cracks, but not allowing the alloy to be completely separated from the steel back. 5. 4.3 Flatness test
The thrust washer must be placed between two parallel plates at a distance of, relying on its own quality. 6 Marking, packaging, transportation and storage
6.1 Marking
6.1.1 The packaging box must have a label indicating the manufacturer's name or factory logo and product model. 6.1.2 The outer surface of the packaging box should be marked with:
a) Manufacturer name, factory logo and address;
b) Product name and serial number;
c) Total quantity;
d) Packing date (year, month)
6.1.3 Packing box outer packaging date:
a) Manufacturer name and address;
b) Product name and model;
c) Total quantity;
d) Charging unit and address;
e) "Handle with care", "Moisture-proof", "Medicine card" and other signs; f) Date of shipment (year, month).
6.1 Packaging
6.2.1 Each stop gasket should be cleaned and treated with corrosion protection before packaging. , after packaging, they are packed into the packaging box. 6.2.2 Each packaging tray shall be accompanied by a product certificate signed by the inspector of the quality inspection department of the manufacturer. 6.3 The selected packaging box must be packed into a dry packaging box. The total mass of each packaging box shall not exceed 50 kg*: and it is guaranteed that it will not be damaged during normal transportation. The packed thrust washers shall be stored in a ventilated warehouse. Under normal storage conditions, the manufacturer shall ensure that the thrust washers will not rust for 12 months from the date of leaving the factory.
A1 Thrust washer alloy grade, chemical composition JB/T9761—1999
Appendix A
(Standard Appendix)
Thrust washer alloy||tt| |1.1 Babbitt alloy: ChSnSb4-4, Ch5nSbB-4, ChSnSb11-6 saw-based alloy (constant iron content not more than 0.35%), ChPhSb10-6 zinc-based alloy should meet the quality requirements of the actual lead-based alloy. AJ.2 Copper-based alloy: 2QPb24-1, 2QPb30 (but the iron content is not more than 0.7%) or other copper-based alloys that meet the quality requirements
A1.3 Aluminum-based alloy: A1Sm20Cu (containing iron 17.5%-22.5%, copper 0.7%-1.3%, total impurities not more than 1.5%) LSB5-0.6 tantalum [containing tantalum 3.5%-5.5%, magnesium 0.3%~0.7%, total impurities Not more than 1.5% and other aluminum-based alloys that meet the quality requirements 42 Hardness
A.2.1 Min alloy is 12-3UHE,
A2.2 Base alloy: ZQP24-1 is 35-42HB, ZOPb30 is 30~36IB, A2.3 Zirconium-based alloy enterprise: AISn20Cu is 25-40HB, 1.Sb5m0.6/valve is 22~32HB, 43 Metallographic structure
A3, the metallographic structure of Jushi alloy meets the requirements of JB/T3657. A1.2 The metallographic structure of copper-based alloys by correction process meets the requirements of JB/T9749, 43.3 The metallographic structure of copper-based alloys and sintering process meets the requirements of corresponding standards.25mm, alloy surface thinning height to mm. Alloy surface i inverted to corner radius 0.
4.3.12 Flatness
The flatness P of thrust washer steel back and alloy surface shall be as specified in Table 14, Table 14
>80-120
>120~160
4.3.[3 Unspecified tolerance
For length and angle ratios without specified tolerance, the tolerance band shall be as follows: length ±0.25mm; angle ±5%
4.4 Surface roughness
4.4.1 The surface roughness R value of steel back is 1.60μm. 4.4.z The surface roughness R value of alloy is 1.25μm.4.5 The alloy and steel back shall be firmly bonded, and no peeling phenomenon is allowed. 4.6 The steel surface shall not have burrs, rust, cracks and other defects. 6
Surface Seat
JB/T9761-1999
4. The alloy layer shall not have defects such as foreign matter, pores, shrinkage and porosity. 4.8 The alloy surface shall not have scratches, bumps and crushing. 4.9 Whether the positioning is allowed: the knife formed when adding 1 to the chamfer, the depth is allowed to be deeper than the maximum chamfer depth. 1mm. 4.10 The warranty period of the thrust washer is 2000h. If the thrust washer is damaged due to poor manufacturing quality during the warranty period, the manufacturer shall provide the product for free.
5 Inspection Rules
5.1 Inspection Categories
a) Regular inspection:
b Inspection:
) Delivery acceptance.
5.2 Inspection items
) Overall dimensions;
b) Geometric accuracy:
) Surface roughness:
d) Physical and chemical properties:
) Appearance quality;
↑) Marking, packaging,
5.3 Oil sampling method
The sampling inspection rules formulated in GB2828 shall be implemented. 5. 4 Inspection method
5.4.1 Hardness test
The hardness test method of copper back and alloy shall be in accordance with the provisions of 15. Table 75
Bardi alloy
Provide, joint
Joint enterprise degree
> 0.5-0.7
All thickness
Inspection record
HV1:10
HB5/25/1RD
HBE/5/30
HH251.2550
1HV0.2/10 indicates that the Alfred hardness should be 1.96V before inspection, and the result should be obtained when loading for 10s. Lap-pressing
2HB5/25/180 indicates that the hardness of the cloth should also be obtained by clawing a ball head with a diameter of 5mml, under a test load of 245.17N, and the test time is 160s. 5.4.2 Test of the bonding strength between the alloy layer and the steel back JB/T9761-1999
Mainly by listening, the sound should be eliminated when tapping the steel back of the thrust washer, and no sub-sound should be heard. Instruments or destructive tests can also be used. The method of destructive testing is as follows:
Bend the thrust washer 90° toward the steel back, allowing the alloy layer to have cracks, but not allowing the alloy to be completely separated from the steel back. 5. 4.3 Flatness test
The thrust washer must be placed between two parallel plates at a distance of, relying on its own quality. 6 Marking, packaging, transportation and storage
6.1 Marking
6.1.1 The packaging box must have a label indicating the manufacturer's name or factory logo and product model. 6.1.2 The outer surface of the packaging box should be marked with:
a) Manufacturer name, factory logo and address;
b) Product name and serial number;
c) Total quantity;
d) Packing date (year, month)
6.1.3 Packing box outer packaging date:
a) Manufacturer name and address;
b) Product name and model;
c) Total quantity;
d) Charging unit and address;
e) "Handle with care", "Moisture-proof", "Medicine card" and other signs; f) Date of shipment (year, month).
6.1 Packaging
6.2.1 Each stop gasket should be cleaned and treated with corrosion protection before packaging. , after packaging, they are packed into the packaging box. 6.2.2 Each packaging tray shall be accompanied by a product certificate signed by the inspector of the quality inspection department of the manufacturer. 6.3 The selected packaging box must be packed into a dry packaging box. The total mass of each packaging box shall not exceed 50 kg*: and it is guaranteed that it will not be damaged during normal transportation. The packed thrust washers shall be stored in a ventilated warehouse. Under normal storage conditions, the manufacturer shall ensure that the thrust washers will not rust for 12 months from the date of leaving the factory.
A1 Thrust washer alloy grade, chemical composition JB/T9761—1999
Appendix A
(Standard Appendix)
Thrust washer alloy||tt| |1.1 Babbitt alloy: ChSnSb4-4, Ch5nSbB-4, ChSnSb11-6 saw-based alloy (constant iron content not more than 0.35%), ChPhSb10-6 zinc-based alloy should meet the quality requirements of the actual lead-based alloy. AJ.2 Copper-based alloy: 2QPb24-1, 2QPb30 (but the iron content is not more than 0.7%) or other copper-based alloys that meet the quality requirements
A1.3 Aluminum-based alloy: A1Sm20Cu (containing iron 17.5%-22.5%, copper 0.7%-1.3%, total impurities not more than 1.5%) LSB5-0.6 tantalum [containing tantalum 3.5%-5.5%, magnesium 0.3%~0.7%, total impurities Not more than 1.5% and other aluminum-based alloys that meet the quality requirements 42 Hardness
A.2.1 Min alloy is 12-3UHE,
A2.2 Base alloy: ZQP24-1 is 35-42HB, ZOPb30 is 30~36IB, A2.3 Zirconium-based alloy enterprise: AISn20Cu is 25-40HB, 1.Sb5m0.6/valve is 22~32HB, 43 Metallographic structure
A3, the metallographic structure of Jushi alloy meets the requirements of JB/T3657. A1.2 The metallographic structure of copper-based alloys by correction process meets the requirements of JB/T9749, 43.3 The metallographic structure of copper-based alloys and sintering process meets the requirements of corresponding standards.25mm, alloy surface thinning height to mm. Alloy surface i inverted to corner radius 0.
4.3.12 Flatness
The flatness P of thrust washer steel back and alloy surface shall be as specified in Table 14, Table 14
>80-120
>120~160
4.3.[3 Unspecified tolerance
For length and angle ratios without specified tolerance, the tolerance band shall be as follows: length ±0.25mm; angle ±5%
4.4 Surface roughness
4.4.1 The surface roughness R value of steel back is 1.60μm. 4.4.z The surface roughness R value of alloy is 1.25μm.4.5 The alloy and steel back shall be firmly bonded, and no peeling phenomenon is allowed. 4.6 The steel surface shall not have burrs, rust, cracks and other defects. 6
Surface Seat
JB/T9761-1999
4. The alloy layer shall not have defects such as foreign matter, pores, shrinkage and porosity. 4.8 The alloy surface shall not have scratches, bumps and crushing. 4.9 Whether the positioning is allowed: the knife formed when adding 1 to the chamfer, the depth is allowed to be deeper than the maximum chamfer depth. 1mm. 4.10 The warranty period of the thrust washer is 2000h. If the thrust washer is damaged due to poor manufacturing quality during the warranty period, the manufacturer shall provide the product for free.
5 Inspection Rules
5.1 Inspection CategoriesbzxZ.net
a) Regular inspection:
b Inspection:
) Delivery acceptance.
5.2 Inspection items
) Overall dimensions;
b) Geometric accuracy:
) Surface roughness:
d) Physical and chemical properties:
) Appearance quality;
↑) Marking, packaging,
5.3 Oil sampling method
The sampling inspection rules formulated in GB2828 shall be implemented. 5. 4 Inspection method
5.4.1 Hardness test
The hardness test method of copper back and alloy shall be in accordance with the provisions of 15. Table 75
Bardi alloy
Provide, joint
Joint enterprise degree
> 0.5-0.7
All thickness
Inspection record
HV1:10
HB5/25/1RD
HBE/5/30
HH251.2550
1HV0.2/10 indicates that the Alfred hardness should be 1.96V before inspection, and the result should be obtained when loading for 10s. Lap-pressing
2HB5/25/180 indicates that the hardness of the cloth should also be obtained by clawing a ball head with a diameter of 5mml, under a test load of 245.17N, and the test time is 160s. 5.4.2 Test of the bonding strength between the alloy layer and the steel back JB/T9761-1999
Mainly by listening, the sound should be eliminated when tapping the steel back of the thrust washer, and no sub-sound should be heard. Instruments or destructive tests can also be used. The method of destructive testing is as follows:
Bend the thrust washer 90° toward the steel back, allowing the alloy layer to have cracks, but not allowing the alloy to be completely separated from the steel back. 5. 4.3 Flatness test
The thrust washer must be placed between two parallel plates at a distance of, relying on its own quality. 6 Marking, packaging, transportation and storage
6.1 Marking
6.1.1 The packaging box must have a label indicating the manufacturer's name or factory logo and product model. 6.1.2 The outer surface of the packaging box should be marked with:
a) Manufacturer name, factory logo and address;
b) Product name and serial number;
c) Total quantity;
d) Packing date (year, month)
6.1.3 Packing box outer packaging date:
a) Manufacturer name and address;
b) Product name and model;
c) Total quantity;
d) Charging unit and address;
e) "Handle with care", "Moisture-proof", "Medicine card" and other signs; f) Date of shipment (year, month).
6.1 Packaging
6.2.1 Each stop gasket should be cleaned and treated with corrosion protection before packaging. , after packaging, they are packed into the packaging box. 6.2.2 Each packaging tray shall be accompanied by a product certificate signed by the inspector of the quality inspection department of the manufacturer. 6.3 The selected packaging box must be packed into a dry packaging box. The total mass of each packaging box shall not exceed 50 kg*: and it is guaranteed that it will not be damaged during normal transportation. The packed thrust washers shall be stored in a ventilated warehouse. Under normal storage conditions, the manufacturer shall ensure that the thrust washers will not rust for 12 months from the date of leaving the factory.
A1 Thrust washer alloy grade, chemical composition JB/T9761—1999
Appendix A
(Standard Appendix)
Thrust washer alloy||tt| |1.1 Babbitt alloy: ChSnSb4-4, Ch5nSbB-4, ChSnSb11-6 saw-based alloy (constant iron content not more than 0.35%), ChPhSb10-6 zinc-based alloy should meet the quality requirements of the actual lead-based alloy. AJ.2 Copper-based alloy: 2QPb24-1, 2QPb30 (but the iron content is not more than 0.7%) or other copper-based alloys that meet the quality requirements
A1.3 Aluminum-based alloy: A1Sm20Cu (containing iron 17.5%-22.5%, copper 0.7%-1.3%, total impurities not more than 1.5%) LSB5-0.6 tantalum [containing tantalum 3.5%-5.5%, magnesium 0.3%~0.7%, total impurities Not more than 1.5% and other aluminum-based alloys that meet the quality requirements 42 Hardness
A.2.1 Min alloy is 12-3UHE,
A2.2 Base alloy: ZQP24-1 is 35-42HB, ZOPb30 is 30~36IB, A2.3 Zirconium-based alloy enterprise: AISn20Cu is 25-40HB, 1.Sb5m0.6/valve is 22~32HB, 43 Metallographic structure
A3, the metallographic structure of Jushi alloy meets the requirements of JB/T3657. A1.2 The metallographic structure of copper-based alloys by correction process meets the requirements of JB/T9749, 43.3 The metallographic structure of copper-based alloys and sintering process meets the requirements of corresponding standards.96V test before lifting, load between 10s. Lap temperature test
2HB5/25/180 indicates that the cloth should also be hardened by a ball head with a claw diameter of 5mml, under a test load of 245.17N, and the test time is 160s, 5.4.2 Test of adhesion strength between alloy layer and steel back JB/T9761-1999
Mainly by listening, when tapping the steel back of the thrust washer, the sound should be silent, and no subsound. Instruments or destructive tests can also be used. The method of destructive testing is as follows:
Bend the thrust washer 90° toward the steel back, allow the alloy layer to have wrinkles, but do not allow the alloy to be completely separated from the steel back, 5. 4.3 Flatness test
The thrust washer must be placed between two parallel plates at a distance of, relying on its own quality. 6 Marking, packaging, transportation and storage
6.1 Marking
6.1.1 The packaging box must have a label indicating the manufacturer's name or factory logo and product model. 6.1.2 The outer surface of the packaging box should be marked with:
a) Manufacturer name, factory logo and address;
b) Product name and serial number;
c) Total quantity;
d) Packing date (year, month)
6.1.3 Packing box outer packaging date:
a) Manufacturer name and address;
b) Product name and model;
c) Total quantity;
d) Charging unit and address;
e) "Handle with care", "Moisture-proof", "Medicine card" and other signs; f) Date of shipment (year, month).
6.1 Packaging
6.2.1 Each stop gasket should be cleaned and treated with corrosion protection before packaging. , after packaging, they are packed into the packaging box. 6.2.2 Each packaging tray shall be accompanied by a product certificate signed by the inspector of the quality inspection department of the manufacturer. 6.3 The selected packaging box must be packed into a dry packaging box. The total mass of each packaging box shall not exceed 50 kg*: and it is guaranteed that it will not be damaged during normal transportation. The packed thrust washers shall be stored in a ventilated warehouse. Under normal storage conditions, the manufacturer shall ensure that the thrust washers will not rust for 12 months from the date of leaving the factory.
A1 Thrust washer alloy grade, chemical composition JB/T9761—1999
Appendix A
(Standard Appendix)
Thrust washer alloy||tt| |1.1 Babbitt alloy: ChSnSb4-4, Ch5nSbB-4, ChSnSb11-6 saw-based alloy (constant iron content not more than 0.35%), ChPhSb10-6 zinc-based alloy should meet the quality requirements of the actual lead-based alloy. AJ.2 Copper-based alloy: 2QPb24-1, 2QPb30 (but the iron content is not more than 0.7%) or other copper-based alloys that meet the quality requirements
A1.3 Aluminum-based alloy: A1Sm20Cu (containing iron 17.5%-22.5%, copper 0.7%-1.3%, total impurities not more than 1.5%) LSB5-0.6 tantalum [containing tantalum 3.5%-5.5%, magnesium 0.3%~0.7%, total impurities Not more than 1.5% and other aluminum-based alloys that meet the quality requirements 42 Hardness
A.2.1 Min alloy is 12-3UHE,
A2.2 Base alloy: ZQP24-1 is 35-42HB, ZOPb30 is 30~36IB, A2.3 Zirconium-based alloy enterprise: AISn20Cu is 25-40HB, 1.Sb5m0.6/valve is 22~32HB, 43 Metallographic structure
A3, the metallographic structure of Jushi alloy meets the requirements of JB/T3657. A1.2 The metallographic structure of copper-based alloys by correction process meets the requirements of JB/T9749, 43.3 The metallographic structure of copper-based alloys and sintering process meets the requirements of corresponding standards.96V test before lifting, load between 10s. Lap temperature test
2HB5/25/180 indicates that the cloth should also be hardened by a ball head with a claw diameter of 5mml, under a test load of 245.17N, and the test time is 160s, 5.4.2 Test of adhesion strength between alloy layer and steel back JB/T9761-1999
Mainly by listening, when tapping the steel back of the thrust washer, the sound should be silent, and no subsound. Instruments or destructive tests can also be used. The method of destructive testing is as follows:
Bend the thrust washer 90° toward the steel back, allow the alloy layer to have wrinkles, but do not allow the alloy to be completely separated from the steel back, 5. 4.3 Flatness test
The thrust washer must be placed between two parallel plates at a distance of, relying on its own quality. 6 Marking, packaging, transportation and storage
6.1 Marking
6.1.1 The packaging box must have a label indicating the manufacturer's name or factory logo and product model. 6.1.2 The outer surface of the packaging box should be marked with:
a) Manufacturer name, factory logo and address;
b) Product name and serial number;
c) Total quantity;
d) Packing date (year, month)
6.1.3 Packing box outer packaging date:
a) Manufacturer name and address;
b) Product name and model;
c) Total quantity;
d) Charging unit and address;
e) "Handle with care", "Moisture-proof", "Medicine card" and other signs; f) Date of shipment (year, month).
6.1 Packaging
6.2.1 Each stop gasket should be cleaned and treated with corrosion protection before packaging. , after packaging, they are packed into the packaging box. 6.2.2 Each packaging tray shall be accompanied by a product certificate signed by the inspector of the quality inspection department of the manufacturer. 6.3 The selected packaging box must be packed into a dry packaging box. The total mass of each packaging box shall not exceed 50 kg*: and it is guaranteed that it will not be damaged during normal transportation. The packed thrust washers shall be stored in a ventilated warehouse. Under normal storage conditions, the manufacturer shall ensure that the thrust washers will not rust for 12 months from the date of leaving the factory.
A1 Thrust washer alloy grade, chemical composition JB/T9761—1999
Appendix A
(Standard Appendix)
Thrust washer alloy||tt| |1.1 Babbitt alloy: ChSnSb4-4, Ch5nSbB-4, ChSnSb11-6 saw-based alloy (constant iron content not more than 0.35%), ChPhSb10-6 zinc-based alloy should meet the quality requirements of the actual lead-based alloy. AJ.2 Copper-based alloy: 2QPb24-1, 2QPb30 (but the iron content is not more than 0.7%) or other copper-based alloys that meet the quality requirements
A1.3 Aluminum-based alloy: A1Sm20Cu (containing iron 17.5%-22.5%, copper 0.7%-1.3%, total impurities not more than 1.5%) LSB5-0.6 tantalum [containing tantalum 3.5%-5.5%, magnesium 0.3%~0.7%, total impurities Not more than 1.5% and other aluminum-based alloys that meet the quality requirements 42 Hardness
A.2.1 Min alloy is 12-3UHE,
A2.2 Base alloy: ZQP24-1 is 35-42HB, ZOPb30 is 30~36IB, A2.3 Zirconium-based alloy enterprise: AISn20Cu is 25-40HB, 1.Sb5m0.6/valve is 22~32HB, 43 Metallographic structure
A3, the metallographic structure of Jushi alloy meets the requirements of JB/T3657. A1.2 The metallographic structure of copper-based alloys by correction process meets the requirements of JB/T9749, 43.3 The metallographic structure of copper-based alloys and sintering process meets the requirements of corresponding standards.
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