1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 10 17 N-STATUS Replaced by WSK-M4D689-A M. Mehandru 2005 09 07 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1996 04 19 Activated K.D. Bruley, G.A. Molnar Printed copies are uncontrolled Copyright 2007, Ford Global Technologie
2、s, LLC Page 1 of 4 POLYVINYL CHLORIDE (PVC), OLEFIN MODIFIED - WSS-M4D579-A2 RIGID - HIGH HEAT - EXTRUSION GRADE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an olefin modified, high heat deflection, polyvinyl chloride thermoplastic extrusion grade compound. 2
3、. APPLICATION This material was released originally for material used for the rigid portion of the co-extruded belt weatherstrip. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production
4、 Materials (WSS-M99P1111-A). 3.4 MOLDING TEST SPECIMEN 3.4.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on specimens machined from extruded 150 x 150 x 3.2 +/- 0.2 mm sheets. 3.4.2 Density 1.07 - 1.13 g/cm3(ISO 1183, Method A) (s) 3.4.3 Tensile Strength a
5、t Break, min 33 MPa (ISO 527-1 and ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, test speed: 50 mm/minute) (s) 3.4.4 Flexural Modulus, min 660 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.4.5 Shear Modulus at 23 C 0.790 - 1.190 GPa (ASTM D 5279
6、, forced constant amplitude, 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) ENGINEERING MATERIAL SPECIFICATIONW
7、SS-M4D579-A2 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 4 Additionally, a shear modulus versus temperature curve shall be plotted for -50 to 120 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range granted on the
8、 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. (s) 3.4.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10
9、 specimens for each test) 3.4.6.1 At 23 +/- 2 C 37 kJ/m23.4.6.2 At -40 +/- 1 C 10 kJ/m2(s) 3.4.7 Heat Deflection Temperature, min 86 C (ISO 75-1 and ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 3.4.8 Heat Aging Performance (ISO 188, except 150 +/- 5
10、0 air changes/h, 1000 h at 100 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.4.8.1 Tensile Strength at Break +/- 15% Change 3.4.8.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.4.7.1, specimens to be notched before heat aging)
11、 3.5 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h) Fog Number, min 60 Formation of clear film, droplets or crystals is cause for rejection. 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval i
12、s 355 x 100 x 1.0 +/- 0.1 mm (use specimen C) with a smooth surface. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D579-A2 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 4 3.7 WEATHERING RESISTANCE After exposure in accordance with 3.7.1, 3.7.2, and 3.7.3, the mate
13、rial shall show no color change in excess of specified Gray Scale rating (AATCC Evaluation Procedure 1/ISO 105-A02). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washin
14、g and/or polishing with Ford car polish (auto wax) after the outdoor exposure, at permission of the affected Product Development Materials Activity. All initial approval will be based on the preliminary Weatherometer exposure, pending Florida and Arizona exposure results for final approval. 3.7.1 Xe
15、non Arc Weatherometer Rating 4 - 5 (SAE J1960, 2500 kJ/m2exposure minimum, specimen size: 60 x 60 minimum, 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) 3.7.2 12 months Florida Rating 4 - 5 (SAE J1976, 5 south, direct weathering inland, specimen size: 60 x 60 minimum, 2.
16、0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) 3.7.3 24 months Florida Rating 3 - 4 (SAE J1976, 5 south, direct weathering inland, specimen size: 60 x 60 minimum, 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) 5. GENERAL INFORMATION The informati
17、on given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 6.6 -5/C (ASTM E 831 TMA, temperature range -30 - +30 C) 5.2 HEAT DEFLECTION TEMPERATURE 95 C (ISO 75-1 and ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen, flatwise, 0.34 +/- 0.1 mm deflection. At 0.45 MPa) 5.3 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PVC ENGINEERING MATERIAL SPECIFICATIONWSS-M4D579-A2 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 4 of 4
