1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 03 25 N-STATUS No replacement named A. Pan, APA 2005 10 14 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1989 05 19 Released SM/EQ9548 K. H. Gerhards Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LL
2、C Page 1 of 4 POLYVINYL CHLORIDE (PVC), RIGID WSK-M4D646-A MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a rigid polyvinyl chloride molding compound. 2. APPLICATION This specification was released originally for material used for body side mold
3、ings. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111A). 3.4 M
4、OLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test specimens. 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 w
5、ith 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 annealing allowed. 3.4.2 Hardness, Durometer D 70 - 80 (ISO 868/ASTM D 2240, 15 s dwell) 3.4.3 Density 1.06 - 1.10 g/cm3(ISO 1183, Method A/ASTM D 792
6、 Method A1) 3.4.4 Tensile Strength at Yield, min 40 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D646-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.4.5 Flexural Mo
7、dulus, min 2.0 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.4.6 Shear Modulus at 23 C 715 - 1072 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 mm
8、 cut from the center of specimen A. Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +110 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. 3.4.7 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Me
9、thod A, 63.5 x 10 x 4.0 +/-0.2 mm specimen, 10 specimens for each test) 3.4.7.1 At 23 +/- 2 C 18 kJ/m23.4.7.2 At -40 +/- 2 C 8 kJ/m23.4.7.3 At -10 +/- 2 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing sha
10、ll be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.4.8 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.4.8.1 At 1.82 MPa 90 C 3.4.8.2 At 0.45 MPa 100 C 3.4.9 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h a
11、t 80 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.4.9.1 Tensile Strength Change +/- 25% (Test Method per para 3.4.4) 3.4.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.4.7.1, specimens to be notched before heat aging) ENGIN
12、EERING MATERIAL SPECIFICATIONWSK-M4D646-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 5. GENERA
13、L INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 8-6/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1
14、Molding Shrinkage After 48 h at 23 +/- 2 C 0.6% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.5% After 30 minutes at 120 C 1.0% ENGINEERING MATERIAL SPECIFICATIONWSK-M4D646-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
