1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 0 2014 05 05 Released M. Katz NA Controlled document at www.MATS Copyright 2014, Ford Global Technologies, LLC Page 1 of 5 ACRYLONITRILE STYRENE ACRYLATE (ASA), MOLDED IN COLOR, WSS-M4D833-B2 MOLDING COMPOUND, EXTERIOR, NON UV-STABLE, GEN
2、ERIC BLACK 1. SCOPE The material defined by this specification is a molding compound based on acrylonitrile-styrene-acrylate (ASA). This material is a generic black resin for parts that require good stiffness and low flexibility. 2. APPLICATION This specification was released originally for material
3、 used for fascia brackets and other exterior molded applications, which are not visible in final assembly. 2.1 LIMITATIONS This material does not contain UV stabilizers, long term exposure to direct sunlight will cause chalking and loss of gloss. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCT
4、ION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). Note: Many 4D resin specifications prior to 2011, identified certain requirements with the symbol (s), which indicated that the mean and +/- 3 sigma value
5、s were to be reported. The specification minimum, maximum or range was established using 3 sigma values. For 2011 and beyond, refer to Table 1 for number of samples required for each test. 3.1.1 This specification is based on virgin materials, however materials with recycled content as defined by WR
6、S-M99P42-A1 (post-consumer and/or post industrial recyclates and repolymerised recycled materials) should be used whenever technically feasible. 3.1.2 The use of regrind is permitted, for economic / environmental reasons, with compliance as indicated in Ford Engineering CAD and Drafting Standard E-4
7、. Part manufacturers using this specification must complete DV and PV testing with the allowable amount of regrind and the maximum allowable regrind content must be specified on the engineering drawing. Any changes to what is specified on the drawing (no specification implies zero regrind) must be a
8、pproved by Materials and PD Engineering through the formal Ford Motor process (SREA). 3.1.3 Performance Criteria: Parts must fulfill applicable SDS/CDS requirements. 3.2 SAMPLE PREPERATION Unless otherwise specified all tests shall be carried out on injection molded, one-end gated test specimens. Th
9、e test specimens A and D shall be molded using molding conditions defined in ISO 6402-02. No annealing is allowed. See Table 1 for the number of specimens required. ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B2 Copyright 2014, Ford Global Technologies, LLC Page 2 of 5 Specimens shall be as follow
10、s: Specimen A 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 527-2, Specimen Type 1A) Specimen B 355 x 100 x 1.0 +/- 0.1 mm (ISO 3795) Specimen C 145 x 60 x 3.2 +/- 0.2 mm Specimen D Center of Specimen A. 80 x 10 x 4.0 +/- 0.2 mm Specimen E 100 mm diameter x 3.2 mm Specimen F 80 mm diameter x 3.2 mm Specime
11、n G 90 mm x 200 mm Specimen H 50 +/- 1 mm diameter x 3.2 +/- 0.2 mm Specimen I 100 mm x 150 mm, min 3.3 MATERIAL PROPERTIES 3.3.1 Density 1.05 1.10 g/cm3 (ISO 1183, Method A) 3.3.2 Tensile Strength at Yield 42 MPa min (ISO 527-1 & ISO 527-2, specimen A, 50 mm/minute test speed) 3.3.3 Elongation at Y
12、ield 2% min (ISO 527-1 & ISO 527-2, specimen A, 50 mm/minute test speed) 3.3.4 Tensile Modulus 2.0 GPa min (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.3.5 Flexural Modulus 2.0 GPa min (ISO 178, Specimen D, 64 mm support span, 2 mm/minute test speed) 3.3.6 Impact Strength, Notched
13、 Charpy (ISO 179-1/1eA, Specimen D) 3.3.6.1 At 23 +/- 2 C 7.0 kJ/m2 min Report Break Type 3.3.6.2 At -40 +/- 2 C 1.5 kJ/m2 min Report Break Type 3.3.6.3 At 20 +/- 2 C 4.0 kJ/m2 min Report Break Type The test specimen must be conditioned for minimum of 6 hours at the above specified temperature prior
14、 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. 3.3.7 Heat Deflection Temperature 77 C min (ISO 75-1 and ISO 75-2 Specimen D, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) All specimens dry as
15、molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B2 Copyright 2014, Ford Global Technologies, LLC Page 3 of 5 3.3.8 Vicat Softening Temperature 94 C min (ISO 306, Spec
16、imen D, Bath - silicone oil, temperature raise 50 +/- 5 C/h. Dial gage reset to O after addition of 5 kg weight, at 50 N load) All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.3.9 Heat Aging
17、 Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 80 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.3.9.1 Tensile Strength at Yiel
18、d, Change +/- 25% (Test method per para 3.4.3) 3.3.9.2 Impact Strength, Notched Charpy, Change +/- 25% (Test Method per para 3.4.7.1, specimens to be notched before heat aging) 3.3.10 Flammability (ISO 3795/SAE J369, Specimen B, smooth surface) Burn Rate 100 mm/minute max 3.4 MATERIAL PROPERTIES REP
19、ORT ONLY Values are retained in Ford Materials Database . 3.4.1 Melt Flow Rate Report Value, g/10 minutes (ISO 1133 220 C,10.0 kg) The material shall be dried for 4 h minimum at 80 C in a mechanical convection oven immediately preceding the test. 3.4.2 Molding Shrinkage After 48 h at 23 +/- 2 C Flow
20、 Report Value, % Cross Flow Report Value, % 3.4.3 Coefficient of Linear Thermal Expansion (ISO 11359-2, -30 +/- 2 C to Tg, Tg to 100 +/- 2 C) Flow Report Value, E-5 mm/mm/ C Across Flow Report Value, E-5 mm/mm/ C 3.4.4 Poissons Ratio Report Ratio (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute tes
21、t speed) ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B2 Copyright 2014, Ford Global Technologies, LLC Page 4 of 5 3.4.5 Supplemental Information The following curves are to be submitted with the data packages: FTIR TGA DSC CLTE Engineering Stress/Strain at 23 C 4. GENERAL INFORMATION The informati
22、on given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 TYPICAL PROPERTIES USING METHODS IN SECTION 3.4 Para. Test Typical Value Units 3.4.1 Melt Flow Rate 3-15 g/10 minu
23、tes 3.4.2 Molding Shrinkage (For specific method and sample size, contact Materials Engineering) After 48 h at 23 +/- 2 C Flow Cross Flow 0.4 0.7 0.4 0.7 % % 3.4.3 Coefficient of Linear Thermal Expansion Flow Cross Flow 8.0 10.0 E-5 mm/mm/ C E-5 mm/mm/ C 3.4.4 Poissons Ratio 0.39 N/A 4.2 MATERIAL ID
24、ENTIFICATION FOR RECYCLING PURPOSES ASA (ISO 1043/11469) 5. SUMMARY OF REVISIONS ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B2 Copyright 2014, Ford Global Technologies, LLC Page 5 of 5 Table 1: Minimum Sample Size Initial Approval New Manufacturing Location for Previously Approved Material Para.
25、Test Minimum Lots Specimens per Lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.1 WSS-M99P1111-A 3.3.1 Density 1 3 3 3.3.2 Tensile Strength at Yield* 3 5 15 1 5 5 3.3.3 Elongation at Yield* 3 5 15 1 5 5 3.3.4 Tensile Modulus 1 10 10 3.3.5 Flexural Modulus* 3 10 30 1 10 10 3.3.
26、6 Impact Strength Notched Charpy (per condition)* 3 10 30 1 10 10 3.3.7 Heat Deflection Temperature* 3 2 6 1 2 2 3.3.8 Vicat Softening Temperature* 3 2 6 1 2 2 3.3.9 Heat Aging Performance 3.3.9.1 Tensile Strength at Yield, Change 1 5 5 3.3.9.2 Impact Strength, Charpy, Change* 3 10 30 3.3.10 Flammab
27、ility 1 5 5 3.4.1 Melt Flow Rate 3 1 3 1 1 1 3.4.2 Mold Shrinkage 1 5 5 1 5 5 3.4.3 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.4.4 Poissons Ratio 1 2 2 3.4.5 Curves - IR - TGA - DSC - CLTE Engineering Stress/Strain at 23 C 1 1 1 per test *3 Sigma statistical data is required for the noted tests. Individual data points shall be reported.
