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1、VND.GM GMP.PAbb/b.004-ENGL L99-7 W 90llb379 ClClL20 5bl, m I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Plastics 1 NYLON 66/6 - 33% GLASS FIBER REINFORCED, UV STABLE, HEAT STABILIZED GW.PA66I6.004 1 SCOPE. This specification covers the properties of a precautions should be take
2、n to ensure that applicable safe lim- 33% glass fiber reinforced W stable, heat stabilized, Nylon its are not exceeded when conducting test procedures, 66/6 copolymer and/or blend, pellet form, injection molding processes, and/or handling the materials required by this speci- compound. fication. 1.1
3、 APPLICATIONS. Typical applications include the fol- lowing: Brackets. 4.1 Test specimens shall be injection molded per IS0 2940, as ASTM D789). Immediately after molding, specimens shall be sealed in moisture proof containers and stored 23f 2C for at least 24 h. All tests shall be performed on unan
4、nealed speci- mens immediately after their removal from the containers in a controlled atmosphere of 23 f 2C and 50 f 5% RH unless otherwise specified. 4.3 COLORFASTNESS EVALUATION PROCEDURE. The color of each test specimen shall be measured per SAE 51545, CIELAB color space, 10 observer, illuminant
5、 065, specular included, sphere geometry, before and after exposure. 4.4 A shear modulus plotted curve, as defined in SAE J1639, shall be provided with each GMP certification package. The temperature range 5C intervals is -50 to +21oC. 5 GENERAL INFORMATION. This standard was origi- nated by the Pla
6、stics Committee in April 1992. The latest revisions include: Rev Date Description A 3/97 ASTM to IS0 B 12197 Added Natural TABLE 1 - COMPOUND PROPERTIES (NATURAL AND BLACK) l-P- I lkst Values I Test Methods Glass Fiber Reinforcement (NOTE 1) 1 30 - 35% I IS0 3451/4 Moisture Content as Received (NOTE
7、 1) I .20% max Density (NOTE 1) 1.35 - 1.43 g/cm3 Melt Point (NOTE 1) 230 - 242-C Flexural Modulus (NOTE 1) I Tensile Strength at Break (NOTE 1) Notched Izod Impact Strength after Heat Aging 7200 MPa min 160 MPa min 75% min retention of original Deflection Temperature Under Load (NOTE 1) - Flammabil
8、ity Notched Izod Impact +23 f 2C 194c min SE or 100 mm/minute 9.2 kJlmrmin IS0 960, Method A, B, C, or D, ASTM D789 or ASTM D4O19 IS0 1183, Method A 1 IS0 3146, Method C IS0 178, Reference SAE J1639 IS0 527,5 mm/minute IS0 1881000 h 14WC, Reference SAE 11639 IS0 75, test flatwise, Reference SAE J163
9、9 IS0 3795lSAE J1639 IS0 180/1A, Reference SAE J1639 -4Of2“C I 5.0 kl/m2 min I NOTE 1: These properties are statisticaUy derived. DECEMBER 1997 PAGE 1 PAW6.004 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resa
10、le, 06/23/2008 20:54:09 MDTNo reproduction or networking permitted without license from IHS -,-,- VND.GM GHP.PAbb/b.004-ENGL 1997 m =iOOb37=l OllL2ll2l, qT8 - I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Plastics I NYLON 6616 - 33% GLASS FIBER REINFORCED, UV STABLE, HEAT STABIL
11、IZED GMP.PAW6.004 TABLE 2 - COMPOUND PROPERTIES (INTEGRALLY COLORED) plve- Notched Izod Impact +23 f 2C -4Of2C Colorfastness to Light (NOTE 2) mlt values 6.0 kJ/22 min 3.0 kl/m2 min I&t Methods IS0 180/1A, Reference SAE J1639 601.6 kJ/m2 exuosure to interior xenon are 3 51885. Measure color I AE - 3
12、.0 max I apparatus per sA1 as deeled in 3.3. No obiectionable defects allowed Color Change Surface Defects u I NOTE 2: For W stable/weatherable material used in safety related components, impact strength retention after weathering should be considered in design. PA66/6.004 oc4JlJwtMcEMBER19Q7oeneralMomcorporatiar#IwgMsReserved PAGE 2 DECEMBER 1997 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 20:54:09 MDTNo reproduction or networking permitted without license from IHS -,-,-