FORD-WSB-M4D880-A-2006.pdf
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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 05 24 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1993 09 02 Released NB00I10043054280 L.A. Graham Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 5 POLYETHYLENE (PE), LINEAR LOW DEN
2、SITY WSB-M4D880-A MOLDING COMPOUND, INTERIOR 1. SCOPE The material defined by this specification is a linear low density polyethylene molding compound that is UV stabilized for interior applications. 2. APPLICATION This specification was released originally for material used for blow molded or extru
3、ded seatbelt sleeves. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must 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
4、 met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 0.6 - 1.0 g/10 minutes (ISO 1133, 190 C, 2.16 kg) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test sp
5、ecimens. The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annea
6、ling allowed. 3.5.2 Density 0.91 - 0.93 g/cm (ISO 1183, Method A) -,-,- ENGINEERING MATERIAL SPECIFICATION WSB-M4D880-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 (s) 3.5.3 Tensile Strength at Max Load, min 12 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/-
7、0.2 mm specimen, 50 mm/min test speed (s) 3.5.3.1 Elongation at Break, min 275% (Test Method according to para 3.5.3) (s) 3.5.4 Flexural Modulus, min 200 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 112 - 168 MPa (ASTM D 4065, forced constant ampli
8、tude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 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
9、 be plotted for -50 to +100 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C No break 3.5.6.2 At -40
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