1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 05 2017 07 26 Revised See Summary of Revisions M. Katz, NA 2016 10 26 Revised See Summary of Revisions S. Werner, EU 2013 02 18 Released M. Gramlich NA Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 1 o
2、f 10 ACRYLONITRILE STYRENE ACRYLATE (ASA), MOLDED IN COLOR, WSS-M4D833-B1 MOLDING COMPOUND, LOW GLOSS, EXTERIOR 1. SCOPE The material defined by this specification is a molding compound based on acrylonitrile-styrene-acrylate (ASA). This material is a UV stabilized resin for parts that require good
3、surface appearance and weather resistance for low gloss exterior applications. 2. APPLICATION This specification was released originally for material used for low gloss exterior molded in color applications. 2.1 LIMITATIONS This material is not suitable for exterior mold in color applications with a
4、ny gloss level above 20 due to not meeting weatherability requirements. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed on the drawing, CAD f
5、ile, or other documents. The list of approved sources is located within Ford at or available externally through a Ford Materials Engineer. Molders not on the CMB program or regions without CMB are required to use materials as listed in the Ford Approved Source List (), and are also encouraged to us
6、e the CMB sources. This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (ASL) can be used when this specification is listed on the drawing, CAD file, or other documents. The list of approved sources is located within Ford at or availa
7、ble externally through a Ford Materials Engineer. Approval of new sources requires the completion of the latest version of the FMD template. Data should be submitted at the time as the specification data package. Only one FMD package is required per trade name approved, FMD is not required for each
8、manufacturing site. FMD is required for new site approvals that do not have an existing FMD record. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned for not less than 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity
9、. Testing of the material should occur in the conditioning environment or soon after removal. 3.3 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS IR spectra and thermograms from initial material approval shall constitute the reference standard and shall be kept on file at the designated material
10、laboratory. The material supplier shall ensure ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B1 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 2 of 10 that all future material supplied to the specification shall produce IR spectra and thermograms that correspond t
11、o the reference standard when tested under the same conditions. 3.4 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS 3.4.1 Many 4D resin specifications prior to 2011, identified certain requirements with the symbol (s), which indicated that the mean and +/- 3 sigma values were to be reported. The spec
12、ification 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. 3.4.2 This specification is based on virgin material and does not allow the addition of recycled content (PIR/PCR). 3.4.3 The use of regrind i
13、s permitted, for economic / environmental reasons. 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
14、(no specific amount implies zero regrind) must be approved by Materials and PD Engineering through the formal Ford Motor Company process (SREA) or Engineering Notice. 3.4.4 Performance Criteria: Parts using this specification shall meet the appropriate performance specifications, WSS-M98P13-E/Latest
15、. Parts must fulfill applicable SDS/CDS requirements. 3.4.5 Ford Materials Engineering may request a Control Plan and Certificate of Analysis (C of A) containing lot testing requirements which must include, but are not limited to: Melt Flow Rate Impact Strength, Notched Charpy at 23 C Flexural Modul
16、us 3.5 SAMPLE PREPARATION All tests shall be carried out on production materials manufactured from the production process unless correlation to a non-production process has been reviewed and approved by Ford Materials Engineering. Unless otherwise specified all tests shall be carried out on injectio
17、n molded, one-end gated test specimens. The test specimens A and D shall be molded using molding conditions defined in ISO 6402-02. No annealing is allowed. See Table 1 and 2 for the number of specimens required. Specimens shall be as follows: Specimen A 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 527-2,
18、 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 Specimen G 90 mm x 200 mm Specimen H 50 +/- 1 mm diameter x 3.2 +/
19、- 0.2 mm Specimen I 100 mm x 150 mm, min ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B1 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 3 of 10 3.6 APPEARANCE 3.6.1 Accelerated Weathering Resistance 3.6.1.1 Standard Practice for Xenon Arc Exposure Test Requiremen
20、ts per Table with Enhanced Light and Water Exposure for Transportation Coatings (ASTM D7869, Use an ungrained, non-polished, tool to prepare specimens with gloss code G, ISO 105-A02/AATCC Evaluation Procedure 1) or 3.6.1.2 Performance Based Standard for Accelerated Requirements per Table Exposure of
21、 Automotive Exterior Materials Using Controlled Irradiance Xenon-Arc Apparatus (Boro/Boro, SAE J2527, Atlas Water Cooled, Rotary Drum Xenon-Arc Apparatus only. Modified Type “S“ borosilicate inner and outer filters, 0.55 W/m2 radiant exposure monitored at 340 nm, Specimen C, gloss code G, SO 105-A02
22、/AATCC Evaluation Procedure 1) Type ASTM D7869 (preferred) SAE J2527 Boro/Boro Requirements New Color 2250 h 3000 h Fade Resistance: Rating 4 min There shall be no cracking, crazing, dulling, or other deterioration. Any non-uniformity of the surface may be cause for rejection and must be brought to
23、Ford Materials Engineering for review. A&B Gloss Materials: Gloss Change 25% max (FLTM BI 110-01) *New Material Supplier or New 2250 h 3000 h Fade Resistance: Rating 4 min There shall be no cracking, crazing, dulling, or other deterioration. Any non-uniformity of the surface may be cause for rejecti
24、on and must be brought to Ford Materials Engineering for review. A&B Gloss Materials: Gloss Change 25% max (FLTM BI 110-01) ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B1 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 4 of 10 Material Grade 3000 h and 3750 h 400
25、0 h, 5000 h, and 6000 h Fade Resistance: Report Only Report any cracking, crazing, dulling, or other deterioration. Any non-uniformity of the surface may be cause for rejection and must be brought to Ford Materials Engineering for review. A & B Gloss Materials: Report Gloss Change (FLTM BI 110-01) *
26、New Material Supplier or New Material Grade: New resin from unknown or known Material Supplier. New Manufacturing Locations (new GSDB) for previously approved materials and existing colors are not required to test exterior weathering. All initial approvals may be based on the above accelerated weath
27、ering exposure. Results from Florida Outdoor Weathering (3.6.2) takes precedence over Accelerated Weathering. 3.6.2 Outdoor Weathering of Exterior Materials - Florida Initial Qualification for new resin technology (SAE J1976, 5 South, direct weathering inland, Specimen I, use an ungrained, non-polis
28、hed, tool to prepare specimens with gloss code G ISO 105-A02/AATCC Evaluation Procedure 1) 3.6.2.1 1 and 3 year Florida Rating 4 min Florida Submission Required for Approval to ASL 3.6.2.2 5 year Florida Report Only After exposure the material shall show no color change in excess of the specified AA
29、TCC Rating. In addition, there shall be no cracking, crazing or other deterioration. Any non-uniformity of the surface may be cause for rejection and must be brought to Ford Materials Engineering for review. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be
30、achieved as specified below by washing with mild detergents and water (ratio 5:95 by volume) or equivalent after the outdoor exposure only. 3.6.3 Scratch Resistance (FLTM BO 162-01, Specimen I) Scratch Rating 2 at 2 N, max Whitening/Color Change Rating 1 at 7 N, max Marring Rating 2 at 2 N, max Thes
31、e values are derived from colored and grained samples in agreement with Materials Engineering. Details regarding color house, let down ratio, colors, grain, etc. can be found in the approval package. ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B1 Controlled document at www.MATS Copyright 2017, For
32、d Global Technologies, LLC Page 5 of 10 3.7 MATERIAL PROPERTIES 3.7.1 Density 1.05 1.10 g/cm3 (ISO 1183, Method A) 3.7.2 Tensile Strength at Yield 42 MPa min (ISO 527-1 & ISO 527-2, specimen A, 50 mm/minute test speed) 3.7.3 Elongation at Yield 2% min (ISO 527-1 & ISO 527-2, specimen A, 50 mm/minute
33、 test speed) 3.7.4 Tensile Modulus 2.0 GPa min (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.7.5 Flexural Modulus 2.0 GPa min (ISO 178, Specimen D, 64 mm support span, 2 mm/minute test speed) 3.7.6 Impact Strength, Notched Charpy (ISO 179-1/1eA, Specimen D) 3.7.6.1 At 23 +/- 2 C 7.
34、0 kJ/m2 min Report Break Type 3.7.6.2 At -40 +/- 2 C 1.5 kJ/m2 min Report Break Type 3.7.6.3 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 to impact test. Low temperature testing shall be done withi
35、n the cold chamber, if not possible, test may be conducted outside, but within 5 seconds. Test specimens must be reviewed by Materials Engineering. 3.7.7 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 mo
36、lded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.7.8 Vicat Softening Temperature 94 C min (ISO 306, Method B50, Specimen D, Bath - silicone oil) All specimens dry as molded. If not tested immediately after molding
37、, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.7.9 Heat Aging Performance (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 ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-
38、B1 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 6 of 10 values shall be determined at the time of the aged properties determination) 3.7.9.1 Tensile Strength at Yield, Change +/- 25% (Test method per para 3.7.2) 3.7.9.2 Impact Strength, Notched Charpy, Change +/
39、- 25% (Test Method per para 3.7.6.1, specimens to be notched before heat aging) 3.7.10 Flammability (ISO 3795/SAE J369, Specimen B, smooth surface) Burn Rate 100 mm/minute max 3.8 MATERIAL PROPERTIES REPORT ONLY Values are retained in Ford Materials Database . 3.8.1 Melt Flow Rate Report Value, g/10
40、 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. 3.8.2 Molding Shrinkage After 48 h at 23 +/- 2 C Flow Report Value, % Cross Flow Report Value, % 3.8.3 Coefficient of Linear Thermal Expansion (ISO 11
41、359-2, -30 +/- 2 C to Tg, Tg to 100 +/- 2 C, 3 curves per directions, flow and cross flow) Flow Report Value, E-5 mm/mm/ C Across Flow Report Value, E-5 mm/mm/ C 3.8.4 Poissons Ratio Report Ratio (ISO 527-1 and ISO 527-2, Specimen A, 1 mm/minute test speed) 3.8.5 Supplemental Information The followi
42、ng curves are to be submitted with the data packages: FTIR TGA DSC CLTE Engineering Stress/Strain at 23 C, -40 C, and 80 C 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concern
43、ing Engineering Material Specifications. ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B1 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 7 of 10 4.1 TYPICAL PROPERTIES USING METHODS IN SECTION 3.8 Para. Test Typical Value Units 3.8.1 Melt Flow Rate 3 15 g/10 minut
44、es 3.8.2 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 % % 3.8.3 Coefficient of Linear Thermal Expansion Flow Cross Flow 8.0 10.0 E-5 mm/mm/ C E-5 mm/mm/ C 3.8.4 Poissons Ratio 0.39 N/A 4.2 GENERIC IDEN
45、TIFICATION AND MARKING OF PLASTIC PRODUCTS ASA (ISO 1043/11469) ENGINEERING MATERIAL SPECIFICATION WSS-M4D833-B1 Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 8 of 10 Table 1: Minimum Sample Size Initial Approval New Manufacturing Location for Previously Approved
46、 Material Para. Test Minimum Lots Specimens per Lot Total Test Specimens Lots Specimens per lot Total Test Specimens 3.4.4 WSS-M98P13-E/Latest Reference the Performance Specification 3.6.1 Weathering Resistance 1 1 1 3.6.2 1, 3, and 5 year Florida 1 1 1 3.6.3 Scratch Resistance 1 3 3 3.7.1 Density 1
47、 3 3 1 3 3 3.7.2 Tensile Strength at Yield* 3 5 15 1 5 5 3.7.3 Elongation at Yield* 3 5 15 1 5 5 3.7.4 Tensile Modulus 1 10 10 3.7.5 Flexural Modulus* 3 10 30 1 10 10 3.7.6 Impact Strength Notched Charpy (per condition)* 3 10 30 1 10 10 3.7.7 Heat Deflection Temperature* 3 2 6 1 2 2 3.7.8 Vicat Soft
48、ening Temperature* 3 2 6 1 2 2 3.7.9 Heat Aging Performance 3.7.9.1 Tensile Strength at Yield, Change 1 5 5 3.7.9.2 Impact Strength, Charpy, Change* 3 10 30 3.7.10 Flammability 1 5 5 3.8.1 Melt Flow Rate 3 1 3 3 1 3 3.8.2 Mold Shrinkage 1 5 5 1 5 5 3.8.3 Coefficient of Linear Thermal Expansion (per condition) 1 3 3 3.8.4 Poissons Ratio 1 2 2 3.8.5 Curves - IR - TGA - DSC - CLTE Engineering Stress/Strain at 23 C, -40 C, 80 C 1 1 1 per test *3 Sigma statistical data is required for the noted tests. Individual data points sh
