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, 3.7, 3.8 & 4 1992 10 01 Released EP00E10176308000 L. Rodigas Printed copies are uncontrolled Copyright 2010, Ford Global Technologies,
2、 LLC Page 1 of 4 POLYVINYL CHLORIDE (PVC), 80 D HARDNESS WSK-M4D646-A2 MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by the specification is a rigid polyvinyl chloride molding compound. 2. APPLICATION This specification was released originally for material used for coe
3、xtruded demist hoses-inner or similar applications. 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). 3.4 MOLDED TEST SPCIMEN 3.4.1 Preparation of Test
4、 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 with shorter dimensions shall be cut from the
5、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 Density 1.30 - 1.35 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.4.3 Hardness, Durometer D 75 - 85 (ISO 868/ASTM D 2240, 15 s dwell) 3.4.4 Tensile Strength at Yield,
6、 min 40 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed ENGINEERING MATERIAL SPECIFICATIONWSK-M4D646-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.4.5 Flexural Modulus, min 2.8 GPa (ISO 178/ASTM D 790M, Method
7、I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span, the radius of the loading nose 5.0 +/- 0.1 mm and of the supports 2.0 +/- 0.2 mm) 3.4.6 Shear Modulus at 23 C 1.0 - 1.52 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain le
8、vel 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 vs. Temperature curve shall be plotted for -50 to +100 C temperature range, at
9、 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, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.4.7.1 At 23 +/- 2 C 9.0 kJ/m23.4.7.2 At 10 +/- 2 C 6.5 kJ/m23.4.7.3 At
10、-40 +/- 2 C 4.0 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall 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 (I
11、SO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at standard deflection of 0.32 +/- 0.01 mm) 3.4.8.1 At 1.80 MPa 80 C 3.4.8.2 At 0.45 MPa 90 C 3.4.9 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 70 +/- 2 C. Unaged property values shall be determined at the time
12、 of the aged properties determination) 3.4.9.1 Tensile Strength at Yield Change +/- 25% (Test Method per para 3.4.3) 3.4.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.4.7.1, specimens to be notched before heat aging) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D646-A2 Printed copies a
13、re uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5 FOGGING (FLTM BO 116-03) Fog Number, min 80 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material
14、approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 5. GENERAL 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 8-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 257
15、7, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 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 min at 120 C 1.0% 5.3 RECYCLING CODE SAE or PVC OPTIONAL PVC ENGINEERING MATERIAL SPECIFICATIONWSK-M4D646-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
