GMNA-GMP.E-P.137-2004.pdf
《GMNA-GMP.E-P.137-2004.pdf》由会员分享,可在线阅读,更多相关《GMNA-GMP.E-P.137-2004.pdf(3页珍藏版)》请在三一文库上搜索。
1、 CG ENGINEERING STANDARDS Material Specification Plastics GMP.E/P.137 Thermoplastic Elastomer - Polyolefinic, Shore A47, Interior/Exterior and Underhood Applications, High Flow 1 Scope This specification covers the properties of a black, high flow, UV and heat stabilized, thermoplastic vulcanizate c
2、ontaining fully cured EPDM elastomer particles dispersed in a continuous polypropylene matrix. This material can be processed by injection molding or extrusion. 1.1 Typical Application. Typical applications include the following: air cleaner seal. Continuous operating temperature range: -40C - 135C.
3、 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ISO 34-1 ISO 1431-1 ISO 37 ISO 1817 ISO 188 SAE J1885 ISO 812 SAE J1960 ISO 815 SAE J1976 ISO 868 SAE J2236 ISO 1183 2.2 GM Standards/Specifications. GM9305P GMW30
4、59 GMW3001 GMW3221 3 Requirements 3.1 Requirements on Delivery. Important physical, mechanical and thermal properties that characterize the material are summarized in charts. The color shall be specified on drawings, in material specifications and otherwise. 3.2 Requirements On Test Specimens. Tests
5、 shall be conducted using the latest issue of the test methods indicated. Suitable precautions should be taken to ensure that applicable safe limits are not exceeded when conducting test procedures, processes, and/or handling the materials required by this specification. Tests specimens shall be die
6、 cut from fan gated injection molded plaques having a nominal thickness of 2.0 0.2 mm. Die cut specimens are to be tested with the long axis of the test specimen perpendicular to the direction of flow. Plaque dimensions must me sufficient to permit this. Tests shall be conducted 40 h minimum after m
7、olding and immediately following a conditioning period of 24 h minimum per GMW3221 Code A, unless otherwise specified. All tests shall be performed on unannealed specimens. In addition, tests specified at temperatures below or above 22 3C shall be conducted at the specified temperature using specime
8、ns conditioned at the specified temperature for 4 h minimum. The minimum values specified in the property tables must be met by test specimens in natural, black, or in a standard sampled color if natural or black are not available. For colored grades where other pigment and additive systems (e.g. st
9、abilizer) are used, the impact values shall not decrease more than 10% from the specified minimum value. Copyright 2004 General Motors Corporation All Rights Reserved October 2004 Originating Department: North American Engineering Standards Page 1 of 3 Copyright General Motors North America Provided
10、 by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:22:32 MDTNo reproduction or networking permitted without license from IHS -,-,- GMP.E/P.137 GM ENGINEERING STANDARDS Copyright 2004 General Motors Corporation All Rights Reserved Page 2 of
11、3 October 2004 3.3 Compound Properties. See table 1. Table 1: Compound Properties (Black) Property Test Method Unit Value Shore A Hardness ISO 868, 15 second delay. Shore A43 to 51 Specific Gravity ISO 1183 0.92 to 0.97 Tensile Stress at Break ISO 37, Type 1 dumbbell, 500 mm/minute MPa 2.8 min Elong
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- GMNA GMP 137 2004
链接地址:https://www.31doc.com/p-3767188.html