1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 01 2012 01 26 N Status No replacement named A. Pan, APA 2006 11 09 Activated K. Mueller Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 6 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO), 15% MINERAL, WSS-M
2、4D492-B2 HIGH MELT FLOW, FULLY PAINTED, EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a filled and paintable thermoplastic molding compound. 2. APPLICATION This specification was released originally for material used for exterior ornamentation applicat
3、ions that are fully painted (i.e.: bodyside moldings, claddings, rocker panels, wheel lips). Any color additives need to be reviewed and approved by the raw material supplier and Ford Materials Engineering. 2.1 LIMITATIONS This thermoplastic polyolefin elastomer material does not contain ultraviolet
4、 (uv) stabilizers, and must be used in painted exterior applications only. 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
5、this specification, identified by symbol (s), 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
6、 in WSS-M99P1111-A. 3.1.3 Critical Process Parameters 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 suppli
7、er based on CP and PFMEA review at the time of initial 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 qual
8、ity control measures or lack of submitted data may result in deletion from the Ford Approved Source List. 3.2 MOLDING COMPOUND (s) 3.2.1 Melt Flow Rate 22 - 34 g/10 minutes (ISO 1133, 230 C, 2.16 kg) (s) 3.2.2 Mineral Filler Content 12 - 18% (ISO 3451-1, Method A, talc filler, 3 h at 650 +/- 25 C, t
9、est portion 1 - 2 g) ENGINEERING MATERIAL SPECIFICATION WSS-M4D492-B2 Copyright 2012, Ford Global Technologies, LLC Page 2 of 6 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
10、 following dimensions are required: A. 150 minimum x 10 x 4.0 +/- 0.2 mm (ISO 3167, 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 1873-2. Specimens with shorter dimensions shall be
11、 cut from the center of the specimen A. No annealing allowed. 3.3.2 Density 0.99 1.03 g/cm3 (ISO 1183, Method A) 3.3.3 Hardness, Durometer D 57 (ISO 868, 15 s dwell) (s) 3.3.4 Tensile Strength at Yield, min 15.5 MPa (ISO 527-1 150 x 10 x 4 mm specimen A). Test speed shall be 50 mm/minute for all mat
12、erials. Provide a curve of tensile stress versus strain using one specimen per lot at each of the following temperatures: -40 C, 23 C and 85 C. For ductile materials, the curve shall cover strain through yield point. (s) 3.3.6 Impact Strength, Izod, notched, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm
13、 specimen use center section of specimen A, 10 specimens for each test) 3.3.6.1 At 23 +/- 2 C 9.3 kJ/m2 Minimum (not -3 sigma value) 18.0 kJ/m2 3.3.6.2 At -40 +/- 2 C 1.5 kJ/m2 3.3.6.3 At 0 +/- 2 C 3.7 kJ/m2 The test specimen must be conditioned for minimum of 6 hours at the above specified temperat
14、ure prior 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. ENGINEERING MATERIAL SPECIFICATION WSS-M4D492-B2 Copyright 2012, Ford Global Technologies, LLC Page 3 of 6 (s) 3.3.7 Flexural Modulus, min 12
15、50 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) 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 cold ch
16、amber, if not possible, test may be conducted outside, but within 5 seconds. 3.3.8 Heat Deflection Temperature, min 52 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) 3.3.9 Heat Aging Performance (ISO 188,
17、 except 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) 3.3.9.1 Tensile Strength at Yield Change +/- 10% (Test Method per para 3.3.3) 3.3.9.2 Impact Strength, Izod Change +/- 15% (Test Method per para 3.5.5
18、.1, specimens to be notched before heat aging) 3.4 PAINTABILITY Painted substrate using this material must comply with all the requirements of paint performance WSS-M2P181-B. Production level materials must be used in preparing test parts/panels. The use of improper sample prep materials can influen
19、ce test results. 3.5 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm (use specimen C) with a smooth surface. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in
20、 meeting the requirements of this specification. 4.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ASTM D 696, -30 C - 100 C) Flow Direction 5.6-5 mm/mm/C Cross-Flow Direction 5.6-5 mm/mm/C (ISO 11359-2 TMA, -30 C - 100 C) Flow Direction 6.6-5 mm/mm/C Cross-Flow Direction 7.1-5 mm/mm/C ENGINEERING MATERI
21、AL SPECIFICATION WSS-M4D492-B2 Copyright 2012, Ford Global Technologies, LLC Page 4 of 6 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 Molding Shrinkage . After 48 h at 23 +/- 2 C (flow direction) 0.7% . After 48 h at 23 +/- 2 C (cross-flow dire
22、ction) 0.7% 4.2.2 Post Shrinkage (Separate specimens required for each test) . After 30 minutes at 120 C (flow direction) 1.0% . After 30 minutes at 120 C (cross-flow direction) 1.0% 4.3 CHARPY, NOTCHED (ISO 179/1eA, 80 x 10 x 4.0 +/- 0.2 mm specimen use center section of specimen A, 10 specimens) 4
23、.3.1 At 23 +/- 2 C 23 kJ/m2 4.3.2 At -40 +/- 2 C 3.5 kJ/m2 4.3.3 At 0 +/- 2 C 6.3 kJ/m2 4.4 HEAT DEFLECTION TEMPERATURE 98 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 0.45 MPa) 4.5 IMPACT STRENGTH, MULTIAXIAL (A
24、STM D 3763, 100 mm diameter x 3.2 mm thick smooth surface injection molded specimen) Impact velocity: 2.2 m/s for exterior/under the hood only applications 6.6 m/s for materials used in interior applications only 2.2 m/s and 6.6 m/s for materials used in both exterior/under-the-hood Report test data
25、 for 23 +/- 2 C, and the lowest of the following temperatures in which a minimum of 24 out of 30 ductile failures were observed: -40 +/- 2 C, or -30 +/- 2 C, or -15 +/- 2 C, or 0 +/-2 C, and 23 +/- 2 C. Test specimens must be conditioned for minimum of 6 h at test temperature prior to impact testing
26、. Low temperature testing shall be conducted within the same environmental chamber as the clamp mechanism of the impact device. Specimens can be transported from the conditioning environment to the testing environment, provided the transfer is within 5 seconds. Test a minimum of 10 specimens from 3
27、individual lots at a single condition. ENGINEERING MATERIAL SPECIFICATION WSS-M4D492-B2 Copyright 2012, Ford Global Technologies, LLC Page 5 of 6 Summarize testing at each condition by providing the following information as well as the information in Figure 1. a. Detailed description of specimen pre
28、paration b. Molding conditions: melt and mold surface temperatures, and average injection velocity c. Number of samples tested per lot per temperature d. Numbers of lots tested e. Number of samples with ductile failure per each test condition f. Representative force vs. deflection curve for each imp
29、act event Test results shall be submitted with an initial qualification of the material with curves (data on CD as well as paper copies) and test samples. A ductile failure is defined as a crack that does not radiate more than 10 mm from the center of the impact point. Operator NameSample IDTest no
30、Date/time Lot ID Temperature ( C )Impact velocity (m/s)Impact energy (J)Time to max load (ms)Total time (ms)Maximum load (kN)Energy to max load (J)Total energy (J)Deflection at max load (mm)# of CracksCrack length, max. (mm)Failure type (Ductile / Brittle) 12345678910AverageMedianMinimumMaximumCoef.
31、 of Var.Std. Dev.Figure 1 - Data Summary 4.6 TENSILE MODULUS 1400 MPa (ISO 527-1 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen A test speed: 1 mm/min) 4.7 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES (ISO 1043 latest) PP+EPDM-TD15 ENGINEERING MATERIAL SPECIFICATION WSS-M4D492-B2 Copyrigh
32、t 2012, Ford Global Technologies, LLC Page 6 of 6 TENSILE STRESS VS TENSILE STRAIN ISO Tensile (50 mm/min Test Speed) End of graph does not indicate break except for -40 C. The property values shown are based on a limited number of tests and, therefore, should not be construed as product specifications.
