1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 16 N-STATUS Replaced by WSS-M4D638-B R. Lord 2005 10 26 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 SM/EQ 7118 TP L. Rodigas Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 5 POLYPROP
2、YLENE (PP) COPOLYMER, COLOR PIGMENTED WSK-M4D660-A INTERIOR POLYPROPYLENE (PP) COPOLYMER, COLOR PIGMENTED WSK-M4D660-A2 GENERAL PURPOSE MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are color pigmented injection molding compounds based on polyp
3、ropylene copolymers. WSK-M4D660-A materials contain weathering requirements necessary for interior applications. 2. APPLICATION These specifications were released originally for materials used for various interior applications. WSK-M4D660-A shall be used where weathering requirements are necessary,
4、such as cowlside panel, door pull etc. WSK-M4D660-A2 shall be used in applications where no weathering requirements are necessary, such as parts of scuff plates etc. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys
5、Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 2.5 - 8.0 g/10 minutes (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 injection
6、 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 prepared a
7、ccording to ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATION WSK-M4D660-A/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 3.5.2 Density 0.895 - 0.92 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Yield, min 23
8、MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) 3.5.3.1 Elongation at Yield, min 6.0% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 950 MPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/minute tes
9、t 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) 3.5.5 Shear Modulus at 23 C 380 - 640 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
10、 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 +150 C temperature range, at 5 C minimum intervals. The plotted curves must be within toler
11、ance ranges shown on page 5. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.1 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 5.0 kJ/m 3.5.6.2 At -40 +/- 2 C 2.0 kJ/m 3.5.6.3 At 10 +/- 2 C 4.0 kJ/m The test specimens must be conditioned f
12、or 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. ENGINEERING MATERIAL SPECIFICATION WSK-M4D660-A/A2 Printed copies are uncontrolled Copyright 2006, For
13、d Global Technologies, LLC Page 3 of 5 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at standard deflection of 0.32 +/- 0.01 mm) 3.5.7.1 At 1.80 MPa 46 C 3.5.7.2 At 0.45 MPa 70 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes
14、/h, 1000 h at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination.) 3.5.8 1 Tensile Strength at Yield Change +/- 20% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change, max -15% (Test Method per para 3.5.6.1, specimens to be notched
15、 before heat aging) 3.6 FOGGING (FLTM BO 116-03) Fog Number, min 80 The formation of droplets or coalescence into a clear film is cause for rejection. 3.7 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
16、 surface. 3.8 WEATHERING RESISTANCE (WSK-M4D660-A only) After exposure in accordance with 3.8.1 and 3.8.2 the material 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 deteriorati
17、on. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume), or equivalent, after the Florida exposure. All initial approvals will be based on the preliminary Weatherometer exposure, pending
18、 Florida exposure results for final approval. ENGINEERING MATERIAL SPECIFICATION WSK-M4D660-A/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 5 3.8.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J1885, 1240 kJ/m2 exposure minimum, specimen size: 150 x 100 mm m
19、inimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.8.2 12 Months Florida Rating 4 - 5 (FLTM BI 160-01, 5 south, direct weathering inland, specimen size: 150 x 100 mm minimum, 2.0 +/- 0.2 mm thick molded in smooth polished mold) 5. GENERAL INFORMATION The information given below is provi
20、ded for clarification and assistance in meeting the requirements of these specifications. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 10 - 20-5/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 23 +/- 2
21、C 1.0 - 2.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.2 - 0.4% . After 30 minutes at 120 C 0.0 - 0.5% 5.3 HARDNESS, DUROMETER D 50 - 68 (ISO 868/ASTM D 2240, 15 s dwell) 5.5 RECYCLING CODE SAE Or PP OPTIONAL PP ENGINEERING MATERIAL SPECIFICATION WSK-M4D660-A/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5
