1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 07 20 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.5, 3.6 & 4 2001 06 22 Revised Updated A. Cockman 1996 09 10 Activated K. D. Bruley, G.A. Molnar Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 2
2、 POLYVINYL CHLORIDE (PVC) ALLOY, FLEXIBLE, WSS-M4D953-A1 89 DUROMETER A HARDNESS MOLDING COMPOUND, EXTERIOR, PAINTABLE POLYVINYL CHLORIDE (PVC) ALLOY, FLEXIBLE, WSS-M4D953-A2 76 DUROMETER A HARDNESS MOLDING COMPOUND, EXTERIOR, PAINTABLE 1. SCOPE The materials defined by these specifications are cadm
3、ium free flexible polyvinyl chloride/thermoplastic polyurethane alloyed extrusion molding compounds. 2. APPLICATION These specifications were released originally for materials used for painted exterior ditch panel applications. 3. REQUIREMENTS Material specification requirements are to be used for i
4、nitial 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-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol (s), shall be m
5、et with data representing 3 sigma values. 3.4 MOLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens Unless otherwise specified all tests shall be conducted on specimens die cut from ungrained compression molded plaques 50 x 15 x 2.0 +/- 0.2 mm molded according to ISO 293. A A2 3.4.2 Density, g/cm
6、3, range 1.27 - 1.35 1.24 - 1.32 (ISO 1183, Method A) (s) 3.4.3 Hardness, Durometer A, range 85 - 95 70 - 80 (ISO 868, 6 mm plied-up specimens, 15 s dwell)ENGINEERING MATERIAL SPECIFICATIONWSS-M4D953-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 A A2
7、 (s) 3.4.4 Tensile Strength at Break, MPa, min 14 13 (ISO 527-2, test speed: 500 mm/minute) (s) 3.4.4.1 Elongation at Break, min 275 650 (Test Method according to para 3.4.4)(s) 3.4.5 Tear Strength, kN/m, min 45 30 (ISO 34, Method B, Procedure a) 3.4.6 Cold Flexibility at -40 C No cracks No cracks (
8、FLTM BN 102-01, except specimen 25 x 150 mm, minimum and 19 - 20 mandrel) 3.4.7 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 100 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.4.7.1 Tensile Strength Change, % +/-
9、 15 +/- 15 (Test Method per para 3.4.4) 3.4.7.2 Elongation Change, % +/- 15 +/- 50 (Test Method per para 3.4.4) 3.4.7.3 Weight Change, %, max 10 10 (50 x 25 x 2 +/- 0.2 mm specimen) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PVC+TPU
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