1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Ver 1 2013 04 26 N Status No replacement K. Mueller, NA 2008 05 15 Activated Y. Bankowski, FNA; J. Robincheck, FNA Controlled document at www.MATS Copyright 2013, Ford Global Technologies, LLC Page 1 of 8 ACRYLONITRILE STYRENE ACRYLATE + POLY
2、CARBONATE (ASA+PC) WSS-M4D682-A7 MOLDING COMPOUND, MOLD-IN-COLOR, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a thermoplastic molding compound based on acrylonitrile-styrene-acrylate and polycarbonate. This material is a UV stabilized resin for parts
3、 that require good surface appearance and weather resistance for exterior applications. This product has been formulated for injection molded parts requiring a high melt flow rate. 2. APPLICATION This specification was released originally for material used for exterior mold-in-color, U38X rear spoil
4、er. 2.1 LIMITATIONS This material is limited to mold-in-color applications and should not be used for painted applications. Resin is black, and it should only be used for injection molded applications. Material should be dried at 110 C for 4 hours in a dehumidifying hopper dryer to achieve a moistur
5、e content of less than 0.01%. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol (s),
6、 shall be met with data representing 3 sigma values using latest ISO test methods. 3.1.2 This specification was developed using virgin material properties. The use of regrind is permitted, for economic/environmental reasons, with compliance as indicated in WSS-M99P1111-A. Critical Process Parameters
7、 At the request of Ford Materials Engineering the supplier shall be responsible to collect critical process control data on each lot of material produced. Testing required will be jointly developed between Ford Materials Engineering and the supplier based on CP and PFMEA review at the time of initia
8、l approval. Annually the supplier will review the in process data with Ford Materials Engineering to show that the process has remained under control. The data needs to be submitted in January for the previous calendar year. Data showing poor quality control measures or lack of submitted data may re
9、sult in deletion from the Ford Approved Source List. ENGINEERING MATERIAL SPECIFICATION WSS-M4D682-A7 Copyright 2013, Ford Global Technologies, LLC Page 2 of 8 3.2 MOLDING COMPOUND (s) 3.2.1 Melt Flow Rate 28.0 53.0 g/10 minutes (ISO 1133, 260 C, 5.0 kg) The material shall be dried for 2 h minimum a
10、t 90 C in a mechanical convection oven immediately preceding the test. 3.3 MOLDED TEST SPECIMEN 3.3.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 minimum x 10 x
11、 4.0 +/- 0.2 mm (ISO 527-2, specimen type 1A) B. 60 x 60 x 2.0 +/- 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 6402-2. Specimens with shorter dimensions shall be cut from the center of the specimen A. No annea
12、ling allowed. 3.3.2 Density 1.13 - 1.15g/cm3 (ISO 1183, Method A) (s) 3.3.3 Tensile Strength at Yield, min 64.0 MPa (ISO 527-1 150 x 10 x 4 mm specimen A). Test speed shall be 5 mm/minute for all materials. (s) 3.3.5 Impact Strength, Izod, notched, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen
13、use center section of specimen A, 10 specimens for each test) 3.3.5.1 At 23 +/- 2 C 10.5 kJ/m2 3.3.5.2 At - 40 +/- 2 C 4.3 kJ/m2 3.3.5.3 At -10 +/- 2 C 9.4 kJ/m2 The test specimen must be conditioned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperature test
14、ing shall be done within the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. ENGINEERING MATERIAL SPECIFICATION WSS-M4D682-A7 Copyright 2013, Ford Global Technologies, LLC Page 3 of 8 (s) 3.3.6 Tensile Modulus, min 2100 MPa (ISO 527-1 & ISO 527-2, 150 minimum x 10
15、 x 4.0 +/- 0.2 mm specimen A test speed: 1 mm/min) 3.3.7 Flexural Modulus, min 2500 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, 2 mm/min test speed, 64 mm support span) (s) 3.3.8 Charpy, notched, min (ISO 179/1eA, 80 x 10 x 4.0 +/- 0.2 mm specimen use center sec
16、tion of specimen A, 10 specimens 3.3.8.1 At 23 +/- 2 C 8.8 kJ/m2 3.3.8.2 At -10 +/- 2 C 5.5 kJ/m2 3.3.8.2 At -40 +/- 2 C 4.5 kJ/m2 The test specimen must be conditioned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be done within the co
17、ld chamber, if not possible, test may be conducted outside, but within 5 seconds. (s) 3.3.9 Heat Deflection Temperature, min 94.0 C (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, flatwise, 0.34 +/- 0.1 mm deflection. At 1.80 MPa) (s) 3.3.10 Vicat Softening
18、Temperature, min 112.0 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens use center section of specimen A. 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, specime
19、ns must be stored in a sealed, moisture-proof container filled with silica gel. 3.3.11 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 80 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.3.11.1 Tensile Strength at Max
20、imum Load, Change +/- 25% (Test method per para 3.3.4) 3.3.11.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.3.6.1, specimens to be notched before heat aging) ENGINEERING MATERIAL SPECIFICATION WSS-M4D682-A7 Copyright 2013, Ford Global Technologies, LLC Page 4 of 8 3.4 HYDROLYTIC STA
21、BILITY (ISO 188, humidity aging at 90 C/70% RH for 500 h or 80 C/70% RH for 1000 h After humidity aging test specimens are to be conditioned for 24 h at 23 +/- 2 C 50% RH. Unaged property values shall be determined at the time of the aged properties determination) 3.4.1 Impact Strength, Izod Change
22、+/- 50% (Test Method per para 3.3.6.1, specimens to be notched before humidity aging) 3.5 SCRATCH RESISTANCE (FLTM BN 108-13, 1.0 +/- 0.1 mm steel ball at 2.0 N) Rating 2, max required at 2.0 N (No visible whitening at any load) 3.6 WEATHERING RESISTANCE, min. After exposure in accordance with 3.6.1
23、, 3.6.2, and 3.6.3, 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 loss of gloss or chalking will be allowed provided an acceptable appearan
24、ce can be achieved as specified below by washing with mild detergents and water (ratio 5:95 by volume) or equivalent after the outdoor exposure only. 3.6.1 Xenon Arc Weatherometer Rating 4 (SAE J2527 modified Type “S“ with at least borosilicate inner and outer filters, 75% gloss 0.55 W/m2 radiant ex
25、posure retention per 3000 h exposure, specimen size: FLTM BI 110-01 60 x 60 minimum, 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen B) 3.6.2 12 months Florida, Initial Qualification only Rating 4 12 months Arizona, Initial Qualification only (SAE J1976, 5 south, direct wea
26、thering inland, specimen size: 60 x 60 minimum, 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen B) 3.6.3 24 months Florida, Initial Qualification only Rating 3 - 4 24 months Arizona, Initial Qualification only (SAE J1976, 5 south, direct weathering inland, specimen size: 60
27、 x 60 minimum, 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen B) ENGINEERING MATERIAL SPECIFICATION WSS-M4D682-A7 Copyright 2013, Ford Global Technologies, LLC Page 5 of 8 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in me
28、eting the requirements of this specification. 4.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 6.6 6.8 -5 mm/C, (ISO 11359-2 TMA, temperature range Report Transverse -30 - +30 C) and Axial Coefficient 4.2 MOLD SHRINKAGE (ISO 294-3 and 294-4, 60 x 60 x 2.0 +/- 0.1 mm injection molded specimen B) 4.2.1 Mol
29、ding Shrinkage . After 48 h at 23 +/- 2 C 0.2 0.4%, Report Flow and Cross-Flow Shrink 4.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.3 0.5%, Report Flow and Cross-Flow Shrink 4.3 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES (ISO 1043 latest) ASA+PC ENGINEER
30、ING MATERIAL SPECIFICATION WSS-M4D682-A7 Copyright 2013, Ford Global Technologies, LLC Page 6 of 8 ENGINEERING MATERIAL SPECIFICATION WSS-M4D682-A7 Copyright 2013, Ford Global Technologies, LLC Page 7 of 8 ENGINEERING MATERIAL SPECIFICATION WSS-M4D682-A7 Copyright 2013, Ford Global Technologies, LLC Page 8 of 8
