1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 11 10 N-STATUS Replaced by WSS-M4D492-B2; Corrected numbering 3.5.7 2005 11 30 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1996 01 18 Activated K.D. Bruley G.A. Molnar Printed copies are uncontrolled Copyright 2006, Ford Gl
2、obal Technologies, LLC Page 1 of 4 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSS-M4D713-A4 12% MINERAL FILLED, HIGH IMPACT MOLDING COMPOUND, PAINTABLE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high impact, gouge resistant, 12% mineral (talc) filled, rigid
3、thermoplastic polyolefin elastomer injection molding compound. This material is not UV stabilized and requires painting to achieve acceptable weatherability. 2. APPLICATION This specification was released originally for material used for painted exterior trim body side moldings. 3. REQUIREMENTS 3.0
4、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 met with data representing 3 sigma value
5、s. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 10 - 16 g/10 minutes (ISO 1133, 230 C, 2.16 kg) (s) 3.4.2 Filler Content 10 - 14% (ISO 3451-1, Method A, talc filler 3 h at 650 +/- 25 C) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carrie
6、d out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 3167, Type 1A) B. 60 x 60 x 2.0 +/- 0.1 mm (ISO/DIS 294-3) C. 355 x 100 x 1.25 +/-0.1 mm (ISO 3795) Test specimen A shall be molded using molding conditions define
7、d in ISO 1873-2. Specimens with shorter dimensions shall be cut from the center of the specimen A. No annealing allowed. ENGINEERING MATERIAL SPECIFICATION WSS-M4D713-A4 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.5.2 Density 0.95 - 0.99 g/cm3 (ISO 118
8、3, Method A) 3.5.3 Hardness, Durometer D 55 +/- 5 (ISO 868, 15 s dwell) (s) 3.5.4 Tensile Strength at Yield, min 14 MPa (ISO 527-1 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, test speed: 50 mm/minute) (s) 3.5.5 Flexural Modulus, min 450 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen us
9、e center section of specimen A, 2 mm/min test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 225 - 375 MPa (ASTM D 5279, 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 le
10、ngth between clamps 35 - 40 mm. Soak time at each temperature interval - 3 minutes minimum) Additionally, a shear modulus versus temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range granted on the original
11、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) 3.5.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen use center se
12、ction of specimen A, 10 specimens for each test) 3.5.7.1 At 23 +/- 2 C No Break 3.5.7.2 At -40 +/- 1 C 3.0 kJ/m2 3.5.7.3 At 0 +/- 2 C No Break The test specimen must be conditioned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be done w
13、ithin the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. (s) 3.5.8 Heat Deflection Temperature, min 40 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) ENGINEERING MATER
14、IAL SPECIFICATION WSS-M4D713-A4 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 130 +/- 2 C. Unaged property values shall be determined at the time of the aged properties deter
15、mination) 3.5.9.1 Tensile Strength at Yield Change +/- 25% 3.5.9.2 Impact Strength, Izod Change No Break (Test Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355
16、 x 100 x 1.25 +/- 0.1 mm (use specimen C) 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 7.6-5/ C (ASTM D 696, temperature range -30
17、C to +70 C) 5.2 MOLD SHRINKAGE (ISO/DIS 294-3, 60 x 60 x 2.0 +/- 0.1 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.77% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.98% . After 30 minutes at 120 C 1.32% 5.3 HEAT DEFLECTIO
18、N TEMPERATURE 60 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 0.45 MPa) 5.4 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PP+EPDM-M12 ENGINEERING MATERIAL SPECIFICATION WSS-M4D713-A4 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
