This standard specifies the requirements, sampling, test methods, marking, packaging, transportation and storage of rubber seals for vehicle doors and windows. This standard applies to rubber, sponge rubber and composite rubber seals for vehicle doors and windows. HG/T 3088-1999 Rubber seals for vehicle doors and windows HG/T3088-1999 Standard download decompression password: www.bzxz.net

Record number: 2816-1999
HG/T3088--1999
This standard adopts the Japanese industrial standard JISD4601-1988 "Rubber seal strips for bus windows" in a non-equivalent manner, and revises the chemical industry standard HGT3088-1987 in combination with domestic actual conditions. The main differences between this standard and JISD4601 are: 1. Added 50±5 hardness level;
Different dimensional tolerances;
Added sponge rubber seal strip content,
This standard has the following changes in technical content compared with HG/T3088-1987: 1. Removed the chapter on types and sizes in the original standard; 2. Removed the two groups of rubber materials and performance indicators of cold resistance and heat resistance in the original standard; Added 50±5 degree level;
Added weather aging resistance performance indicators.
This standard replaces IIG/T30881987 from the date of implementation. Appendix A of this standard is the appendix of the standard.
This standard is proposed by the Technical Supervision Department of the former Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of the Sealing Products Sub-Technical Committee of the National Technical Committee for Standardization of Rubber and Rubber Products. The drafting units of this standard are: Northwest Rubber and Plastic Research and Design Institute, Yuanda (Tieling) Auto Parts Manufacturing Co., Ltd., Changchun Rubber Products Factory, Guizhou Hongyang Machinery Factory.
The main drafters of this standard are: Sun Liping, Zhu Baoyong, Zhao Wancai, Wang Guangsheng, Hu Zhugeng. 1 Scope
Chemical Industry Standard of the People's Republic of China
Rubber sealing strips of doors and windows for vehicles
Rubber sealing strips of doors and windows for vehiclesHG/T3088 -1999
Replaces HG/T30881987
This standard specifies the requirements, sampling, test methods and marking, packaging, transportation and storage of rubber sealing strips of doors and windows for vehicles. This standard applies to rubber, sponge rubber and composite rubber sealing strips for vehicle doors and windows. 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 released, the versions shown are valid. All standards will be revised, and parties using wooden standards should explore the possibility of using the latest versions of the following standards. GB/T528-1998 Determination of tensile stress-strain properties of vulcanized rubber or thermoplastic rubber (eqvISO37:1994) GB/T529-1999 Determination of tear strength of vulcanized rubber or thermoplastic rubber (trouser-shaped, rectangular and crescent-shaped specimens) (eqvISO)34:1994) GB/T$31-1999 Rubber pocket hardness test method for indentation hardness (idtISO7619:1986) GB/T1682-94 Determination of low-temperature brittleness of vulcanized rubber single specimen method GB/T2828--87 Batch-by-batch inspection counting sampling procedures and sampling tables (applicable to continuous batches GB/T3512-83 (89) Rubber hot air aging test method (neyISO188: 1976) GB/T5721-93 Rubber sealing products marking, packaging, transportation and storage general provisions GB/T6031-1998 Determination of hardness of vulcanized rubber or thermoplastic rubber (10~100IRHD) (idt1SO48: 1994) GB/T6343-86 Determination of apparent density of foam and rubber (idlISO845: 1977) GB/T7759-1996 Determination of compression permanent set of vulcanized rubber and hot shear rubber at high temperature and low temperature (eqv ISO 815 -1991)
GB/T7762-87 Ozone aging test for vulcanized rubber Static tensile test method (negISO1431/1:1980) GB/T9865.1-1996 Preparation of samples and test specimens of vulcanized rubber or thermoplastic rubber Part 1, physical test (idt I50 4661-11993)wwW.bzxz.Net
GB/T12831-91 Artificial climate (xenon lamp) aging test method for vulcanized rubber (neqIS04665/31987) IIG/T3090-1987 (1997) General provisions for the appearance quality of molded and extruded rubber products 3 Requirements
3.1 Materials and process
The raw materials and manufacturing process used for sealing strips shall comply with the provisions of relevant technical documents. 3-2 Performance
The physical properties of rubber materials shall comply with the provisions of Table 1. 3.3 Dimensions
The dimensions and tolerances of the sealing strip shall comply with the provisions of the relevant technical documents. Approved by the State Bureau of Petroleum and Chemical Industry on April 20, 1999 and implemented on April 1, 2000
HG/T3088—1999
If there is no document provision, the cross-sectional assembly dimension tolerance of the sealing strip shall comply with the provisions of Table 2, and the length dimension tolerance shall comply with the provisions of Table 3. For composite sealing strips, the rubber part and the sponge part shall comply with the corresponding requirements in Table 2 and Table 3 respectively, and the rubber-metal composite part shall comply with the requirements for rubber sealing strips.
3.4 ​​Appearance Quality
The appearance quality of rubber sealing strips shall comply with the provisions of HG/T3090. The appearance quality of sponge sealing strips shall comply with the provisions of Table 4. For composite sealing strips, the appearance quality of the rubber part shall meet the requirements for rubber sealing strips, and the appearance quality of the sea braid part shall meet the requirements for sponge sealing strips:
Physical properties of rubber materials
Hardness, IRHD or Shore A, hardness
Tensile strength, minimum, MPa
Elongation at break, minimum, %
Compression set, type B
70℃×22 h, maximum, %
Tear strength, minimum, kN/m
Apparent density, nominal/cm
Hot air aging, 70℃×70h
Hardness change, maximum, IRHD Or degree
Tensile strength change rate, maximum, %
Tear elongation change rate, maximum, %
Pollution
Ozone resistance, 50pphm, tensile 20%
40℃×72
Brittle temperature, not higher than, C
Weather resistance, 63 ℃×300 h, tensile 20% Note: Item 11 can be omitted if the user does not make any requirements. 50-5
No transfer contamination on the test piece
No cracks or abnormal phenomena
No cracks or abnormal phenomena
Table 2 Sealing strip section assembly dimension tolerance
(inclusive)
Sealing strip
Sponge rubber
0. 35 ~~ 0. 7
Sealing strip
Defect name
Broken skin Lack of glue
Softness and hardness
4 Sampling
HG/T 3088—1999
Table 3 Sealing strip length dimension tolerance
(inclusive)
Table 4 Sponge sealing strip appearance quality requirements
Depth not more than 2mm. Length and width not more than 3 mm, no more than 2 uniform and uniform points per meter
The depth does not exceed 1mm, the length and width do not exceed 3mm, and no more than 2 differences per meter
Sealing strip
4.1 The same rubber compound produced by the same shift and the same machine is a batch. The same type of sealing strips produced with the same batch of rubber and the same production process conditions are a batch.
4.2 The dimensions of the products shall be randomly sampled and inspected according to the general inspection level in GB/T2828! , and the qualified quality level (AQL) is 4.0. 4.3 The appearance of the products shall be fully inspected. 4.4 Output inspection: Each batch of products shall be inspected according to the requirements of items 1 to 5 or item 6 in Table 1. 4.5 Type inspection: When one of the following conditions occurs, the requirements of items 1 to 10 in Table 1 shall be inspected. a) When the product is transferred or the new product is finalized and identified; b) After formal production, if there are major changes in materials and processes that may affect product performance; ) During normal production, the inspection shall not be less than once every six months; d) When the product is stopped for more than three months and production is resumed; e) When the factory inspection results are significantly different from the last type inspection; 1) When the national quality supervision agency proposes a requirement for type inspection. 4.6 Re-inspection: When the performance test results are unqualified, double samples should be taken for unqualified items. If the re-inspection is still unqualified, the rubber material is allowed to be conditioned once. After conditioning, the 110 performance tests in Table 1 should be carried out. If one of them is still unqualified, the batch of rubber materials is unqualified.
5 Test method
HG/T3088-1999
5.1 The main dimensions of the product section are measured with a measuring tool with an accuracy of 0.02mm or measured with a projector. 5.2 The appearance quality of the product is checked with monthly measurement and a measuring tool with an accuracy of 0.02mm. 5.3 Hardness shall be tested in accordance with GB/T531 or GB/T6031. However, only tests conducted in the same way are comparable. The method specified in GB/T6031 shall be used as the arbitration method. 5.4 Tensile strength and elongation at break shall be tested in accordance with GB/T528 using type 1 specimens. 5.5 Constant deformation compression set shall be tested in accordance with GB/T7759 using type B specimens. 5.6 Tear strength shall be tested in accordance with GB/T529 using right-angle specimens without cuts. 5.7 Apparent density shall be tested in accordance with GB/T6343. 5.8 Hot air aging shall be tested in accordance with GB/T3512. 5.9 Contamination shall be tested in accordance with Appendix A. 5.10 Oxidation resistance shall be tested in accordance with GB/T 7762. 5.11 Brittle temperature shall be tested in accordance with GB/T1682. 5.12 Weathering resistance is tested in accordance with GB/T12831. 6 Marking, packaging, transportation and storage
The marking, packaging, transportation and storage of the product are carried out in accordance with GB/T5721. If there are special requirements, they shall be resolved through negotiation between the supply and demand parties. A1 Purpose
HG/T 3088—1999
Appendix A
(Appendix to the standard)
Test method for contamination of rubber sealing strips for vehicles The rubber sample is in surface contact with the white test plate at a certain temperature for a period of time, and the degree of contamination on the surface of the test plate is observed to determine the contamination performance of the rubber sample
A2 Instruments
A2.1 Aging tester:
A2.2 White test plate: Grade 70mm×150mm. A3 Test specimens
Three specimens with a length of 100mm, a width of 10mm+0.5mm, and a thickness of 2mm=0.2mm are prepared according to the requirements of GB9865.1. A4 Test procedure
a. Wipe the surface of the white test plate with a clean white cloth soaked in anhydrous ethanol; b. Place the specimen halfway on the self-colored test plate, fix it on the test plate with a thread or adhesive paper that has no effect on the test, and then place it in the aging instrument and leave it at a temperature of (63+3)℃ for 100h; c. Remove the specimen and rinse the surface of the test plate with clean water to check for contamination; d. Place the rinsed test plate back into the aging instrument and leave it at a temperature of (63+3)℃ for 16h. h;C Rinse the test plate surface again with clean water to check for contamination; f Perform a blank test on the test plate at the same time.
A5 Result evaluation
Judge whether there is contamination. On the test plate after the test, if the discoloration caused by contamination around the contact test piece is greater than that of the blank test plate, it is transfer contamination.
A6 Test report
The test report includes the following contents:
a Test purpose and requirements;
b Test instrument specifications and models;
C Test birch name, specifications, quantity;
l Test conditions (temperature, time, etc.):
e Evaluation indicators and methods used;
"Test results and explanations;
g Test date, tester.
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