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TB/T 2843-2007 English PDF (TBT2843-2007)

TB/T 2843-2007 English PDF (TBT2843-2007)

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TB/T 2843-2007: General technical specification for elastic parts for railways

This Standard specifies classification, basic performances, requirements, test methods, inspection rules, marking, packaging, storage and transportation of elastic rubber parts for railways. This Standard applies to elastic rubber parts for shock absorption, buffer, flexible connection, limiting, etc. in hanging system, equipment installation system, connection, limiting positions, etc. of railways.
TB/T 2843-2007
GB
RAILWAY INDUSTRIAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 45.060.01
S 31
Replacing TB/T 2843-1997, TB/T 2589-1995
General technical specification for
elastic parts for railways
ISSUED ON. DECEMBER 30, 2007
IMPLEMENTED ON. MAY 01, 2008
Issued by. Ministry of Railways of the People's Republic of China
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Classification ... 7
4 Environmental requirements ... 7
5 Basic performances and requirements ... 7
6 Test methods ... 12
7 Inspection rules ... 13
8 Marking, packaging, storage and transportation ... 15
Annex A ... 16
Annex B ... 21
Annex C ... 26
Annex D ... 30
Annex E ... 34
Bibliography ... 39
Foreword
This Standard non-equivalently adopts European standard EN 13913-2003 ?€?Elastic Basic Components of Rubber Suspension Parts for Railways?€? and Japanese
industrial standard JIS E 4710-1995 ?€?General Rules on Rubber Vibration Isolators for Railway Rolling Stock?€?.
Main differences between this Standard and EN 13913-2003 are as follows. - Dynamic creep test and test method are not specified;
- Static or dynamic stress relaxation test and test method are not specified. Main differences between this Standard and JIS E 4710-1995 are as follows. - Hardness test and test method are not specified;
- Insulation resistance test and test method are not specified.
This Standard replaces TB/T 2843-1997 ?€?General technical specification for elastic parts for railways?€? and TB/T 2589-1995 ?€?General Technical Conditions for Rubber Pads for Electric Locomotives?€?.
Compared with TB/T 2843-1997 and TB/T 2589-1995, the main changes of this Standard are as follows.
- Basic performances and requirements of elastic rubber parts are different; - ADD dynamic performance test of elastic rubber parts;
- ADD static creep test of elastic rubber parts;
- Static performance, adhesive performance, fatigue performance and other product test methods of elastic rubber parts are different.
Annexes A, B, C, D and E of this Standard are normative.
This Standard was proposed by and shall be under the jurisdiction of Ministry of Railways Institute of Standards and Metrology.
Drafting organizations of this Standard. Zhuzhou Times New Material Technology Co., Ltd. AND Metals and Chemical Research Institute of China Academy of Railway Sciences.
Main drafters of this Standard. Wang Jin, Zhao Xiyong, Liu Guojun, Lin Dawen, Mao Kunpeng and Yang Weijian.
The previous versions replaced by this Standard are as follows.
- TB/T 2843-1997;
- TB/T 2589-1995.
General Technical Specifications for Elastic
Parts for Railways
1 Scope
This Standard specifies classification, basic performances, requirements, test methods, inspection rules, marking, packaging, storage and transportation of elastic rubber parts for railways.
This Standard applies to elastic rubber parts for shock absorption, buffer, flexible connection, limiting, etc. in hanging system, equipment installation system, connection, limiting positions, etc. of railways.
This Standard does not apply to air springs, sealed rubber products, coupler buffers, hoses and conveyor belts of railways.
2 Normative references
The provisions in following documents become the provisions of this Standard through reference in this Standard. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Standard, however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies.
GB/T 228-2002 Metallic materials - Tensile testing at ambient temperature (ISO 6892.1998( E), EQV)
GB/T 528-1998 Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties (eqv ISO 37 - 1994)
GB/T 529-1999 Rubber, vulcanized or thermoplastic - Determination of tear strength (Trouser, angle and crescent specimens) (eqv ISO 34-1.1994)
GB/T 531-1999 Rubber - Determination of indentation hardness by means of pocket hardness meters (idt ISO 7619-1986)
GB/T 1681-1991 Rubber - Determination of rebound resilience of vulcanizates (eqv ISO 4662-1986)
GB/T 1682-1994 Rubber, vulcanized - Determination of low-temperature
brittleness (single specimen method)
GB/T 1689-1998 Rubber vulcanized - Determination of abrasion resistance ( Akron machine)
GB/T 1690-2006 Rubber vulcanized or thermoplastic - Determination of the effect of liquids (ISO 1817.2005, MOD)
GB/T 1692-1992 Vulcanized rubber - Determination of the insulation resistivity GB/T 1695-2005 Rubber, vulcanized - Determination of electrical breakdown strength and voltage resistant at commercial power frequency
GB/T 3512-2001 Rubber, vulcanized or thermoplastic - Accelerated ageing and heat resistance tests - Air-oven method (eqv ISO 188.1998)
GB/T 3672.1-2002 Rubber - Tolerances of products - Part 1. Dimensional
tolerances (ISO 3302-1.1996, IDT)
GB/T 3672.2-2002 Rubber - Tolerances of products - Part 2. Geometrical
tolerances (ISO 3302-2.1998, IDT)
GB/T 4336-2002 Standard test method for spark discharge atomic emission spectrometric analysis of carbon and low - Alloy steel (routine method) GB/T 6038-2006 Rubber test mixes - Preparation, mixing and vulcanization - Equipment and procedures (ISO 2393-1994, MOD)
GB/T 7759-1996 Rubber, Vulcanized or thermoplastic - Determination of
compression set at ambient elevated or low temperatures (eqv ISO 815.1991) GB/T 7762-2003 Rubber, vulcanized or thermoplastic - Resistance to ozone cracking - Static strain test (ISO 1431-1.1989, MOD)
GB/T 9867-1988 Rubber - Determination of abrasion resistance using a rotating cylindrical drum device (neq ISO 4649-1985)
GB/T 10125-1997 Corrosion tests in artificial atmospheres - Salt spray tests (neq ISO 9227-1985)
GB/T 10707-1989 Rubber - Determination of flammability by oxygen index (neq 190 4589-1984)
GB/T 11211-1989 Rubber vulcanized - Determination of adhesion to metal; Tension method (eqv ISO 814-1986)
GB/T 13488-1992 Rubber - Determination of the burning behaviour of vertical specimens (neq IEC 707-1981)
GB/T 16585-1996 Rubber, vulcanized - Test method of resistance to artificial weathering (Fluorescent UV lamp)
GB/T 19242-2003 Rubber, vulcanized - Determination of creep in compression or shear (ISO 8013-1988, MOD)
HG/T 3090 General rules of visual quality for moulded and extruded rubber products
3 Classification
3.1 Elastic rubber parts for primary suspension;
3.2 Elastic rubber parts for secondary suspension;
3.3 Elastic rubber parts for motor suspension;
3.4 Elastic rubber parts for device support;
3.5 Elastic rubber parts for flexible connection;
3.6 Elastic rubber parts for buffer limiting;
3.7 Other elastic rubber parts.
4 Environmental requirements
Operating temperature rang of elastic rubber parts is -50??C ~ +70??C.
5 Basic performances and requirements
5.1 Appearance and dimensions of elastic rubber parts
5.1.1 Appearance quality and geometric dimensions of elastic rubber parts shall meet the requirements of product design and relevant technical documents approved based on specified procedures; other unspecified requirements shall be executed in accordance with GB/T 3672.1-2002, GB/T 3672.2-2002 and HG/T 3090.
5.1.2 Rubber layer of elastic rubber-pile parts shall not have inclusion phenomenon; allowable quantity and type of defects existed in rubber layer shall conform to the provisions of HG/T 3090.
5.1.3 Rubber and metal adhesive place of elastic rubber-metal composite parts shall be free of stripping and other defects. Exposed metal shall not be corroded. 5.2 Basic performances of elastic rubber parts
Basic performances of elastic rubber parts shall at least include basic performances specified in Table 1; inspection criteria in Table 2 and tolerances in Table 3 shall be Metal material texture and the physical and mechanical performance, heat treatment performance and salt-spray corrosion resistance performance shall meet the requirements of relevant technical documents approved based on specified procedures.
5.6 Requirements for other materials
Other materials shall meet the requirements in relevant technical documents approved...

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