1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 19 N-STATUS Replaced by WSS-M4D952-A3 2005 11 30 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1994 04 06 Released NB00I10043054320 T.A. Honey D.M. Keller Printed copies are uncontrolled Copyright 2006, Ford Global Technol
2、ogies, LLC Page 1 of 4 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSB-M4D713-A2 4% MINERAL FILLED, HIGH IMPACT, PAINTABLE MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a TEO mineral filled, high impact, rigid thermoplastic polyolefin elastomer in
3、jection 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 bumper shells. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material supplier
4、s 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 values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 7 - 10 g/10 min
5、utes (ISO 1133, 230 C, 2.16 kg) 3.4.2 Mineral Content 2 - 5% (ISO 3451/1, Method A, talc filler, 3 h at 650 +/- 25 C, test portion 1 to 2 g) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test s
6、pecimens. 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 according to ISO 294. No anne
7、aling allowed. ENGINEERING MATERIAL SPECIFICATION WSB-M4D713-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.5.2 Density 0.89 - 0.94 g/cm3 (ISO 1183, Method A) 3.5.3 Hardness, Durometer D 50 - 60 (ISO 868, 15 s dwell) (s) 3.5.4 Tensile Strength at Yield
8、 min 15.4 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) (s) 3.5.4.1 Elongation at Yield, min 9% (Test Method according to para 3.5.4) (s) 3.5.5 Flexural Modulus, min 615 - 830 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.6 Shear Modulu
9、s at 23 C 340 - 500 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. Specimen length between clamps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum) A
10、dditionally, 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 shown on page 4. (s) 3.5.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens fo
11、r each test) 3.5.7.1 At 23 +/- 2 C No break 3.5.7.2 At -40 +/- 1 C 6 kJ/m2 3.5.7.3 At 0 +/- 2 C No break 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. (s) 3.5.8 Heat Deflec
12、tion Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 3.5.8.1 At 1.80 MPa 45 C 3.5.8.2 At 0.45 MPa 65 C ENGINEERING MATERIAL SPECIFICATION WSB-M4D713-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.5.9 Heat Agin
13、g Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Yield Change +/- 15% (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod Change No break (Te
14、st Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.25 +/- 0.1 mm with a smooth surface. 3.7.1 Regrind 20% maximum of regrind produced from molded parts is ac
15、ceptable, providing all requirements of this specification are met. 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 11.6-5/ C (ASTM E 228 or TMA, temperature
16、 range -30 to +30 C) 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 C 0.8 - 1.1% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 1.0 - 1.2% . After 30 min at 120 C 1.0 - 1.3% 5.3 RECYCLING CODE PP+EPDM ENGINEERING MATERIAL SPECIFICATION WSB-M4D713-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
