1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2011 01 26 N Status No replacement named A. Pan, APA 1995 04 24 Activated L. Hess Page 1 of 6 POLYPROPYLENE (PP) COPOLYMER, 30 % GLASS FIBER WSS-M4D936-A1 REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW D
2、ESIGN 1. SCOPE The material defined by this specifications is a chemically coupled glass fiber reinforced thermoplastic injection molding compound based on polypropylene copolymer. 2. APPLICATION This specification was released originally for material used for air inlet ducts on Contour/Mystique. 3.
3、 REQUIREMENTS 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
4、 variation in the final product is continuously reduced. 3.1.1 All requirements of this specification, identified by symbol (s), shall be met with data representing 3 sigma values. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or t
5、hermal analysis of material/parts supplied to this specification. The IR spectra and thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that corresp
6、ond to the reference standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity for not less than 48 h prior to testing and tested und
7、er the same conditions unless otherwise specified. ENGINEERING MATERIAL SPECIFICATION WSS-M4D936-A1 Page 2 of 6 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 3.0 - 9.0 g/10 minutes (ISO 1133, 230, 2.16 kg) (s) 3.4.2 Glass Fiber Content 28 - 33% (ISO 3451/1, Method A, 1 h at 750 +/- 25 C) 3.5 MOLDED
8、TEST SPECIMEN 3.5.1 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 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 sh
9、orter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.10 - 1.16 g/cm3 (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Max Load, min 45 MPa (ISO R 527, 150 minimum x 10 x 4.
10、0 +/- 0.2 mm specimen, 50 mm/min test speed) (s) 3.5.4 Flexural Modulus, min 3.8 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 0.8 - 1.34 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level
11、 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. Soak time at each temperature interval - 3 minutes minimum) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for - 50 to + 150 C temperature range, at
12、5 C minimum intervals. The plotted curve must be within tolerance range shown on page 6. ENGINEERING MATERIAL SPECIFICATION WSS-M4D936-A1 Page 3 of 6 (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 8.0 kJ/m2 3.5.6
13、.2 At - 40 +/- 2 C 5.0 kJ/m2 The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.5.7 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise,
14、 0.32 +/- 0.01 mm deflection) 3.5.7.1 At 1.80 MPa 110 C 3.5.7.2 At 0.45 MPa 125 C 3.5.8 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength at Ma
15、x Load Change +/- 25% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change, max - 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100
16、 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (FLTM BO 116-03, 3 h at 100 C heating, 21 C cooling plate) Fog Number, min 60 The formation of clear film, droplets or crystals is cause for rejection. ENGINEERING MATERIAL SPECIFICATION WSS-M4D936-A1 Page 4 of 6 3.8 ADDITIONAL REQUIREMENTS Specif
17、ic 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. 3.9 SUPPLIERS RESPONSIB
18、ILITY 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 originally approved under th
19、is 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 Materials Engineering act
20、ivity. 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 Specification WSS-M99P9999-A1. 4. APP
21、ROVAL OF MATERIALS Materials defined by this specification must have prior approval by the responsible Materials Engineering activity. Suppliers desiring approval of their materials shall first obtain an expression of interest from the affected Purchasing, Design and Materials Engineering activity.
22、Upon request, the Supplier shall submit to the affected Materials Engineering activity a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of this specification (test resu
23、lts, not nominal values), the material designation and code number, and test specimens for Ford evaluation. Fords engineering approval of a material will be based on its performance to this specification and on an assessment of suitability for intended processes and/or applications. Upon approval, t
24、he material will be added to the Engineering Material Approved Source List. ENGINEERING MATERIAL SPECIFICATION WSS-M4D936-A1 Page 5 of 6 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT
25、OF LINEAR THERMAL EXPANSION tbdE-5/C (ASTM E 831 TMA, temperature range - 30 to + 30 C) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C tbd% 5.3 ELONGATION AT BREAK, min tbd% (Test method according to para. 3.5.3) 5.4 HARDNESS, DUROMETER D 75 - 85 (ISO 868, 15 s dwell) 5.5 RECYCLING CODE PP-GF30 ENGINEERING MATERIAL SPECIFICATION WSS-M4D936-A1 Page 6 of 6
