1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Changes 2011 03 01 No replacement named A. Pan, APA N Status A1 and A2 1989 11 23 SM/EQ6050 TP Released L. Rodigas WP 3948-a Page 1 of 6 THERMOPLASTIC POLYESTER-ETHER ELASTOMER WSK-M4D693-A1 (TEEE), 55 DUROMETER D HAR
2、DNESS, INJECTION MOLDING COMPOUND THERMOPLASTIC POLYESTER-ETHER ELASTOMER WSK-M4D693-A2 (TEEE), 55 DUROMETER D HARDNESS, BLACK INJECTION MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are rigid thermoplastic polyester-ether elastomer (TEEE), 55
3、durometer D hardness, preferable for injection molding. 2. APPLICATION These specifications were released originally for materials used for plugs (WSK-M4D693-A1) and exterior parts which are not subject to direct sunlight exposure such as plugs, stone deflectors, etc. (WSK-M4D693-A2). 3. REQUIREMENT
4、S 3.1 STATISTICAL PROCESS Suppliers must conform to the requirements of Ford Quality System Standard Q-101. A mutually acceptable Control Plan as described therein is required for material/source approval. Appropriate statistical tools must be used to analyze process/product data so that variation i
5、n the final product is continuously reduced. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of material/parts supplied to this specification. The IR spectra and thermograms established for initial approval shall
6、constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated here
7、in are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. ENGINEERING MATERIAL SPECIFICATION WSK-M4D693-A1 WSK-M4D693-A2 WP 3948-b Page 2 of 6
8、 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate (A1 & A2) 15 - 21 g/10 minutes (ISO 1133/ASTM D 1238, 220 C, 2.16 kg) The material shall be dried for 1 h minimum at 135 C in a mechanical convection oven immediately preceding the test. 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless ot
9、herwise specified all tests shall be carried out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of th
10、e test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density (A1 & A2) 1.18 - 1.24 g/cm3 (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Hardness Durometer D (A1 & A2) 50 - 60 (ISO 868/ASTM D 2240, 15 s dwell) 3.5.4 Tensile Strength at Yield,
11、 min 12 MPa (A1 & A2) (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) 3.5.4.1 Elongation at Yield, min 25 % (Test Method according to para 3.5.4) 3.5.5 Flexural Modulus, min (A1 & A2) 150 MPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm
12、specimen, 64 mm support span) 3.5.6 Shear Modulus at 23 C (A1 & A2) 65 - 100 MPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15 %, strain level below 1 %. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Specimen length between clamps 35-40 mm. So
13、ak time at each temperature interval - 3 minutes minimum) ENGINEERING MATERIAL SPECIFICATION WSK-M4D693-A1 WSK-M4D693-A2 WP 3948-b Page 3 of 6 Additionally, a Shear Modulus vs. Temperature curve shall be plotted for - 50 to + 150 C temperature range, at 5 C minimum intervals. The plotted curve must
14、be within tolerance range shown on page 6. 3.5.7 Impact Strength, Izod, min (A1 & A2) (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.7.1 At 23 +/- 2 C No break 3.5.7.2 At - 40 +/- 2 C No break The test specimens must be conditioned for m
15、inimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.5.8 Heat Deflection Temperature, min (A1 & A2) (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3
16、.5.8.1 At 1.82 MPa 30 C 3.5.8.2 At 0.45 MPa 55 C 3.5.9 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, WSK-M4D693-A1 - 1000 h at 110 +/- 2 C and WSK-M4D693-A2 - 1000 h at 100 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3
17、.5.9.1 Tensile Strength at Yield Change +/- 25 % (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod Change No break (Test Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (A1 & A2) (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for mate
18、rial approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (A1 & A2) (FLTM BO 116-3) Fog Number, min tbd Formation of excessive amounts of clear film or droplets is cause for rejection. ENGINEERING MATERIAL SPECIFICATION WSK-M4D693-A1 WSK-M4D693-A2 WP 3948-b Page 4 of 6 3.8 ADDIT
19、IONAL REQUIREMENTS Specific requirements for material and/or manufactured parts shall be specified on the Engineering drawing, Engineering parts specification and/or performance specifications. All critical areas with respect to these properties shall be clearly designated on the Engineering drawing
20、. 3.9 SUPPLIERS RESPONSIBILITY All materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any change in the properties, composition, construction, color, processing or labeling of the material ori
21、ginally approved under this specification, whether or not such changes affect the materials ability to meet the specification requirements, the Supplier shall notify Purchasing, Toxicology and the affected Materials Engineering activity of the proposed changes and obtain the written approval of the
22、Materials Engineering activity. Test data, test samples and a new code identification are to be submitted with the request. Substance restrictions imposed by law, regulations or Ford, apply to the materials addressed by this document. The restrictions are defined in Engineering Material Specificatio
23、n WSS-M99P9999-A1, unless a different suffix (e.g., A2 or A3) is specified on the engineering document for the application. 4. APPROVAL OF MATERIALS Materials defined by this specification must have prior approval by the responsible Materials Engineering activity. Suppliers desiring approval of thei
24、r materials shall first obtain an expression of interest from the affected Purchasing, Design and Materials Engineering activity. Upon request, the Supplier shall submit to the affected Materials Engineering activity its own laboratory report to the specification (test results, not nominal values),
25、the material designation and code number, and test specimens for Ford evaluation. Upon approval, the material will be added to the Engineering Material Approved Source List. 5. GENERAL INFORMATION The information below is provided for clarification and assistance in meeting the requirements to the s
26、pecification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (A1 & A2) 10E-5/ C (ASTM D 696) ENGINEERING MATERIAL SPECIFICATION WSK-M4D693-A1 WSK-M4D693-A2 WP 3948-b Page 5 of 6 5.2 MOLD SHRINKAGE (A1 & A2) (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage
27、 After 48 h at 23 +/- 2 C 1.1 - 1.5 % 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.1 - 0.3 % After 30 min at 120 C 0.2 - 0.5 % 5.3 WEATHERING RESISTANCE (WSK-M4D693-A2 ONLY) After exposure in accordance with 5.3.1 and 5.3.2 the material shall show no fading o
28、r color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by polishing wi
29、th Ford car polish (auto wax) at permission of the affected Product Development Materials Activity. 5.3.1 Xenon Arc Weatherometer Rating tbd (FLTM BO 101-03, tbd kJ/m2 exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 5.3.2 12 months Florida Rating 3-4 (FLTM BI 160-01, 5 deg south, direct weathering inland, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATION WSK-M4D693-A1 WSK-M4D693-A2 WP 3948-b Page 6 of 6
