1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 22 N-STATUS No replacement named J. Crist, NA 2006 05 18 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1992 05 04 Released NB00I10043054185 L. Graham Printed copies are uncontrolled Copyright 2010 Ford Global Technologies,
2、 LLC Page 1 of 5 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSB-M4D845-A 5% MINERAL FILLED MOLDING COMPOUND, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a mineral filled, rigid thermoplastic polyolefin elastomer (TEO) injection and/or extrusion molding
3、 compound. 2. APPLICATION This specification was released originally for material used for stepwell scuffplates. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M
4、99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 6 - 10 g/ (ISO 1133/ASTM D 1238, 230 C, 2.16 kg) 10 minutes 3.4.2 Filler Content 3 - 7% (ISO 3451/1, Method A, 650 +/- 25 C) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on
5、 injection 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
6、prepared according to ISO 294. No annealing allowed. 3.5.2 Density 0.87 - 0.99 g/cm (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Hardness, Durometer D 72 - 76 (ISO 1183, Method A/ASTM D 792, Method A1) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D845-APrinted copies are uncontrolled Copyright 2010,
7、Ford Global Technologies, LLC Page 2 of 5 3.5.4 Tensile Strength at Max Load, min 28 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed 3.5.5 Flexural Modulus, min 1.3 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min t
8、est 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) 3.5.6 Shear Modulus at 23 C 545 - 910 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 fr
9、om 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 curve must be within toler
10、ance range shown on page 5. 3.5.7 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.7.1 At 23 +/- 2 C 6.3 kJ/m 3.5.7.2 At -40 +/- 2 C 4.0 kJ/mThe test specimens must be conditioned for minimum of 6 h at the above sp
11、ecified 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. 3.5.8 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
12、mm) 3.5.8.1 At 1.80 MPa 50 C 3.5.8.2 At 0.45 MPa 96 C 3.5.9 Heat Aging Performance (ISO 188/ASTM D 573, 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 Change +/- 25% (Test Metho
13、d per para 3.5.4) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D845-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 3.5.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03
14、) Fog Number, min 80 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.7 WEATHERING RESISTANCE After exposure in accordance with 3.7.1 and 3.7.2 the material shall show no fading or color change in excess of specified Gray Scale rating (AATCC Evaluation Procedure 1/I
15、SO 105-A02). In addition, there shall be no cracking, crazing or other deterioration. 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
16、initial approvals will be based on the preliminary Weatherometer exposure, pending Florida exposure results for final approval. 3.7.1 Xenon Arc Weatherometer Rating 4-5 (SAE J1885, 1240 kJ/m exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold)
17、3.7.2 12 months Florida Rating 4-5 (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) 3.8 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 0.8 +/- 0.1 m
18、m with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. ENGINEERING MATERIAL SPECIFICATIONWSB-M4D845-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page
19、 4 of 5 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 7 14-5/ 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 C 1.4% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h
20、 at 80 C 1.5% . After 30 min at 120 C 1.4% 5.2.3 Instrumented Impact (ASTM D 3763) . At 23 C, min 24 J . At - 29 C, min 8 J 5.3 RECYCLING CODE SAE or TEO OPTIONAL TEO ENGINEERING MATERIAL SPECIFICATIONWSB-M4D845-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
