1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 10 11 N-STATUS Replaced by WSS-M4D713-A6 K. Mueller 2005 10 06 Revised Rev para 3.2.1 M. Masserant 2003 04 30 Activated K. D. Bruley Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 5 THERMOPLASTIC P
2、OLYOLEFIN ELASTOMER (TEO), WSS-M4D713-A7 4% GLASS/MINERAL FILLED, COLOR PIGMENTED, UV STABILIZED, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass/mineral filled, high impact, rigid thermoplastic polyolefin elastomer (TPO) injection molding compou
3、nd. This material is UV stabilized and color pigmented for exterior use. 2. APPLICATION This specification was released originally for material used for exterior light truck box rail moldings. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers mu
4、st conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol (s), shall be met with data representing 3 sigma values. 3.2 MOLDING COMPOUND (s) 3.2.1 Melt Flow Rate 18 - 30 g/10 minutes (ISO 1133, 230 C,
5、 2.16 kg) (s) 3.2.2 Glass/Mineral Content 2 - 6% (ISO 2451-1, Method A, glass/mineral, 3 h at 565 +/- 25 C, test portion 4 - 5 g) 3.3 MOLDED TEST SPECIMEN 3.3.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test specimens. E
6、NGINEERING MATERIAL SPECIFICATIONWSS-M4D713-A7 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 5 The following dimensions are required: A. 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 3167, Type 1A) B. 60 x 60 x 2.0 +/- 0.1 mm (ISO/DIS 294-3) C. 355 x 100 x 1.0 +/-
7、0.1 mm (ISO 3795) Test specimen A shall be molded using molding conditions defined in ISO 294. Specimens with shorter dimensions shall be cut from the center of the specimen A. No annealing allowed. 3.3.2 Density 0.92 - 0.94 g/cm (ISO 1183, Method A) 3.3.3 Hardness, Durometer D 51 - 63 (ISO 868, 15
8、s dwell) (s) 3.3.4 Tensile Strength at Yield, min 17 MPa (ISO 527-1 2.2 m/s) 4.4.1 23 +/- 2 C 16.4 J 4.4.2 -40 +/- 2 C 1.3 J 4.5 SHEAR MODULUS AT 23 C 290 - 490 MPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2
9、 mm cut from the center of specimen A. Specimen length between clamps 35 - 40 mm. Soak time at each temperature interval -3 minutes minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range granted on the original material approval and it shall constitute the reference standard for materials supplied to this specification and shall be kept on file at the designated material laboratory and be available on request. 4.6 RECYCLING CODE TEO-GF4 TEO-M4
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