1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 16 N-STATUS Replaced by WSS-M4D638-B R. Lord 2005 10 27 Revised Inserted 3.0; deleted 3.1, 3.2, 3.3, 3.8, 3.9 revised 3.5.3.1, 3.5.5, 3.5.8.2, 3.7.1.1 and 3.7.1.2; renumbered 3.7.1.3 to 3.7.1.2 L. Rodigas 1988 10 12 Released SM/EQ 775
2、4TP L. Rodigas Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 5 POLYPROPYLENE (PP), COPOLYMER, CONTROLLED WSK-M4D604-A RHEOLOGY (CR) GRADE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an injection molding compound for i
3、nterior use based on polypropylene copolymer with controlled rheologic properties. 2. APPLICATION This specification was released originally for material used for scuff plates. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to th
4、e Companys Standard Requirements For Production materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 7 - 15 g/10 min (ISO 1133/ASTM D 1238, 230 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 injec
5、tion 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 center portion of the test specimen A and/or B. The specimens shall be prepar
6、ed according to ISO 294. No annealing allowed. 3.5.2 Density 0.90 - 0.92 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) ENGINEERING MATERIAL SPECIFICATION WSK-M4D604-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 3.5.3 Tensile Strength at Yield, min 18
7、MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) 3.5.3.1 Elongation at Yield, min 10% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 0.9 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span)
8、 3.5.5 Shear Modulus at 23 C 350 - 530 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 cut from the center of specimen A.) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +1
9、60 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. The only specification to be brought to out attention is the Focus. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 sp
10、ecimens for each test) 3.5.6.1 At 23 +/- 2 C 9.0 kJ/m2 3.5.6.2 At -40 +/- 2 C 2.8 kJ/m2 3.5.6.3 At 10 +/- 2 C 6.5 kJ/m2 The 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
11、 possible, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 At 1.82 MPa 45 C 3.5.7.2 At 0.45 MPa 70 C ENGINEERING MATERIAL SPECIFICATION WSK-M4D604-A Printed copies are uncontrolled Copyright 2006, F
12、ord Global Technologies, LLC Page 3 of 5 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h at 130 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength Change +/- 15% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength,
13、 Izod Change, max -15% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/min The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 SPECIAL REQUIREMENTS 3.7.1 Weathering Resis
14、tance After exposure in accordance with 3.7.1.1 and 3.7.1.2 the material shall show no fading or color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of glos
15、s or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume). 3.7.1.1 Xenon Arc Weatherometer Rating 4 (SAE J1885, 1240 kJ/m2 exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smo
16、oth polished mold) 3.7.1.2 12 months Florida Rating 4 (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATION WSK-M4D604-A Printed copies are uncontrolled Copyright 2006, Ford Global Technol
17、ogies, LLC Page 4 of 5 3.7.2 Determination of CR-Grade Melt Flow Rate - Ratio, max 4 Calculation of Melt Flow Rate - Ratio B/A x 100 A - Melt Flow Rate at 190 C and 0.325 kg B - Melt Flow Rate at 190 C and 10.0 kg Test Method for A and B according to ISO 1133 5. GENERAL INFORMATION The information b
18、elow is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 9 - 11-5/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 Molding Shrinkage After 48 h at 2
19、3 +/- 2 C 1.5 - 2.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.15 - 0.30% After 30 minutes at 120 C 0.00 - 0.15% 5.3 HARDNESS, DUROMETER D 54 - 67 (ISO 868/ASTM D 2240, 15 s dwell) ENGINEERING MATERIAL SPECIFICATION WSK-M4D604-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5
