1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2011 06 23 N Status Replaced by WSS-M4D827-B1 A. Pan, APA 2007 02 05 Revised Inserted 3.0; Deleted 3.10, 4, 5.5 1966 07 08 Released ESF-M4D236-A F6-2822 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page
2、 1 of 3 ABS MOLDING COMPOUND ESF-M4D236-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an improved flexural modulus acrylonitrile butadiene styrene (ABS) molding compound. 2. APPLICATION This specification was released originally for material used for instrume
3、nt cluster housings, extensions and consoles. 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-M99P1111-A). 3.1 SPECIFIC GRAVITY, Natural 1.04 - 1.15 (ASTM D 792)
4、3.2 TENSILE YIELD STRENGTH, As received, min 5,500 psi (38 MPa) (ASTM D 638) Elongation at Yield, min 2.4% 3.3 FLEXURAL YIELD STRENGTH, min 9,000 psi (62 MPa) (ASTM D 790) 3.4 FLEXURAL MODULUS, min 350,000 psi (2.4 GPa) (ASTM D 790) 3.5 IMPACT STRENGTH, Izod, As received, min (ASTM D 256, 0.010 in (
5、0.25 mm) notched, 1/8 x 1/2 x 5 in (3.2 x 12.7 x 125 mm) bar) Natural 2.5 ft/lb/in (134 J/m) Pigmented 2.0 ft lb/in (107 J/m) 3.6 DEFLECTION TEMPERATURE, min (ASTM D 648, injection molded sample 1/2 x 1/2 x 5 in (12.7 x 12.7 x 125 mm) bar) 3.6.1 As Received At 66 psi (455 kPa) 91 C At 264 psi (1820
6、kPa) 82 C ENGINEERING MATERIAL SPECIFICATION ESF-M4D236-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 3 3.6.2 Conditioned (2 h at 85 +/- 1 C) At 66 psi (455 kPa) 93 C At 264 psi (1820 kPa) 91 C 3.7 HARDNESS - ROCKWELL “R“, min 95 (ASTM D 785) 3.8 MOLDED PA
7、RTS 3.8.1 Heat Resistance Finished parts must pass the following test: Test Method: Condition the parts for 3 h in a mechanical convection oven maintained at 88 +/- 3 C (or as otherwise specified on engineering drawing). After removal, parts shall show no more than 0.5% shrinkage. There shall be no
8、local shrinkage where the part has been gated which will interfere with assembly to mating parts or affect its appearance. The part shall not warp to an extent that would affect its use in ultimate assembly as specified on the engineering drawing. 3.8.3 Physical Properties Specific requirements for
9、physical properties of molded parts, when required, shall be specified on engineering drawings. 3.8.4 Resistance to Fade (required on visible parts only) (FLTM BO 101-01) The material shall fade no more than the master sample approved for production on file in the Quality Control or Test Laboratory
10、after 120 SFH. 3.8.5 Decorability When decorating is required on parts made of this material, they must be capable of accepting this decoration in accordance with the performance specification shown on the engineering drawing. 3.9 FLAMMABILITY, max 4 in (101 mm)/min (FLTM BN 024-02, without the lot
11、sampling plan) In addition, the test specimen shall not exhibit any flashing or sudden flaming on either surface in excess of the above maximum value. 5. GENERAL INFORMATION (Typical average data) The information given below is provided for clarification and assistance in meeting the requirements of
12、 this specification. 5.1 TENSILE MODULUS 400 000 psi (2.8 GPa) (ASTM D 638) ENGINEERING MATERIAL SPECIFICATION ESF-M4D236-A Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 3 of 3 5.2 COEFFICIENT OF LINEAR THERMAL EXPANSION 4.0 x 10-5/F (ASTM D 696) (7.2 x 10-5/C) 5.3 MAXIMUM RECOMMENDED TEMPERATURE 85 C FOR CONTINUOUS USE 5.4 MOLD SHRINKAGE 0.002-0.005 in/in (mm/mm)
