1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 10 11 N-STATUS Replaced by WSS-M4D961-A3 K. Mueller 2006 07 25 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 2000 10 25 Activated K.D. Bruley Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1
2、 of 5 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO), WSS-M4D971-A COLOR PIGMENTED, UV STABLILIZED, HIGH MELT FLOW, FOR MOLDED-IN-COLOR APPLICATIONS, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a filled, weatherable thermoplastic injection molding compound
3、. 2. APPLICATION This specification was released originally for material used for molded-in color radiator grilles and headlamp bezels applications. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MAT
4、ERIALS 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 values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt F
5、low Rate 12 - 18 g/ (ISO 1133, 240 C, 2.16 kg) 10 minutes (s) 3.4.2 Mineral Filler Content 19 - 24% (ISO 2451-1, Method A, talc filler, 3 h at 565 +/- 25 C, test portion 4 - 5g) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on
6、injection molded one-end gated test specimens. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D971-APrinted copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 5 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 +/-
7、0.1 mm (ISO/DIS 294-3) C. 355 x 100 x 1.0 +/- 0.1 mm (ISO 3795) Test specimen A shall be molded using molding conditions defined in ISO 294. Specimens with shorter dimensions shall be cut from the center of the specimen A. No annealing allowed. 3.5.2 Density 1.00 - 1.07 g/cm (ISO 1183, Method A) 3.5
8、.3 Hardness, Durometer D 54 - 64 (ISO 868, 15 s dwell) (s) 3.5.4 Tensile Strength at Yield, min 18 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 1.3 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, use center section
9、 of specimen A, 2 mm/min test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 710 - 1185 (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
10、 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 material approval and
11、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, 10 specimens for each test) 3.5.7.1
12、 At 23 +/- 2 C 18 kJ/m23.5.7.2 At -40 +/- 1 C 2.0 kJ/m2ENGINEERING MATERIAL SPECIFICATIONWSS-M4D971-APrinted copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 5 3.5.7.3 At 0 +/- 2 C 5.0 kJ.m2 The test specimens must be conditioned for a minimum of 6 h at the above speci
13、fied temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. (s) 3.5.8 Heat Deflection Temperature, min 48 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of sp
14、ecimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) 3.5.9 Heat Aging 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 +/- 10% (T
15、est Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Change +/- 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/minute The specimen size required for material approval is 355 x 100 x 2.0 +/- 0.1 mm with a smooth surf
16、ace. 3.7 WEATHERING RESISTANCE After exposure in accordance with 3.7.1, 3.7.2, and 3.7.3, 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 deterioration. A slight los
17、s of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing and/or polishing with Ford car polish (auto wax) after the outdoor exposure, at permission of the affected Product Development Materials Activity. All initial approvals will be based on the preliminar
18、y Weatherometer exposure, pending Florida and Arizona exposure results for final approval. 3.7.1 Xenon 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) ENGINEERING MATERIA
19、L SPECIFICATIONWSS-M4D971-APrinted copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 4 of 5 3.7.2 12 months Florida Rating 4 - 5 12 months Arizona (SAE J1976, 5 south, direct weathering inland, specimen size: 60 x 60 minimum, 2.0 +/- 0.1 mm thick, smooth surface, low gloss i
20、njection molded specimen) 3.7.3 24 months Florida Rating 4 24 months Arizona (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 information given below is provided for cl
21、arification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 9.3-5/ C (ASTM E 696) 5.2 HEAT DEFLECTION TEMPERATURE, MIN 81 C (ISO 75 -1 120 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) 5.3 RECYCLING CODE PP+PE ENGINEERING MATERIAL SPECIFICATIONWSS-M4D971-APrinted copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 5 of 5
