FORD-WSK-M4D708-A-1990.pdf
ENGINEERING MATERIAL SPECIFICATION Date 1990-02-01 Material Name Specification Nrsnber Release No. Releasefievis ion C 01031532 Re 1 e as e d M. Sievert POLYAMIDE (PA) 6, 30 % GLASS .FIBER/GIASS SPHERE REINFORCED 1. 2. 3. SCOPE The material defined by this specification is a glass fiber/glass sphere reinforced polyamide 6 molding compound. APPLI CAT1 ON This specification vas released originally or material used for the fuse box. NOTICE: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in part dimensions and physical properties due to moisture absorption or loss in the service/assembly environment. 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 variation in the final product is continuously reduced. 1 - SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS 3.2 Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of material/parts supplied to this specification. The IR spectra and thermogram 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 correspond 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 and specimens with moisture content not exceeding 0.2 % (test according to IS0 960, Method B/ASTM D 789). All test materials immediately after processing have to be sealed in containers that are impermeable to water vapor. If the moisture content exceeds 0.2 %, condition-the material for a minimum of 16 h at 40 - 50 C at a reduced pressure below 133 Pa. m '7009160 0005bLb LbO ENGINEERING MATERIAL SPECIFICATION 3.4 3.5 Conduct tests in a controlled atmosphere of 23 t/- 2 C and 50 +/- 5 % relative humidity. Individual specimens shall not be removed from closed containers until immediately before testing. MOLDING COMPOUND 3.4.1 Glass Fiber/Glass Sphere Content (IS0 3451/4, test temperature 600 +/- 25 C, test portion 1 g) 3.4.2 Melt Temperature (IS0 1218, Method B/ASTM D 789) MOLDED TEST SPECIMEN 3.5.1 3.5.2 3.5.3 3.5.4 3.5.5. 28 - 32 % 215 - 225 C 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, IS0 3167) B. 120 x 10 x 4.0 +/- 0.2 Specimens w i t h shorter dimensions shall be cut from the center portion of the test specimen A and/or B. 'The specimens shall be prepared according to IS0 294. No annealing allowed. Density 1.34 - 1.38 g/cm3 (IS0 1183, Method A/ASTM D 792, Method Al) Tensile Strength at Max Load, min 105 MPa (IS0 R 527/ASTM D 638M, 150 x 10 x 4.0 +/- 0.2 llp specimen, 5 mm/minute test speed) Flexural Modulus, min (IS0 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 61 mm support span) Shear Modulus at 23 C (ASTM D 0065, 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. Soak time at each temperature interval - 3 minutes minimum) 4.5 GPa 1.17 - 1.95 GPa Additionally, a Shear Modulus vs. Temperature curve shall be plotted for - 50 to + 210 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 6. WP 3948-b Page 2 of 6 9009360 0005b17 OT7 ENGINEERING MATERIAL SPECIFICATION 3.5.6 Impact Strength, .Izod, min (IS0 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 4.5 W/m2 3.5.6.2 A t - 40 +/- 2 C 4.0 W/m2 The t e s t specimens must be conditioned f o r minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box, i f not possible, test can be conducted outside, but within'5 s. . 3.5.7 Heat Deflection Temperature, min (IS0 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 A t 1.82 m a 180 C 3.5.7.2 A t 0.05 MPa 200 c 3.5.8 Heat Aging Performance (IS0 188/ASTM D 573, 150 +/- 50 air changesfi, 1000 h . a t 150 +/- 2 C. . After heat aging test specimens are t o be conditioned i n a desiccator fqr 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the t i m e of the aged properties determination) 3.5.8.1 Impact Strength, h o d Change +/- 2s % (Test Method per'para 3.5.6.1, specimens to be notched before heat aging) 3.6 FlAMMcLBILITY (IS0 3795) Burn Rate, max 100 mm/minute The specimen s i t e required f o r material approval is 355 x 100 x 1.2 +/- 0.1 m,with a smooth surface. 3.7 FOGGING (FLTM BO 116-3) Fog Number, m i n 60 Formation of excessive amounts of clear f i l m o r droplets is cause f o r rejection. W3 3948-b Page 3 of 6 m 7009160 0005618 T33 = -,-,- 3.8 ADDITIONAL 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. 3.9 SUPPLIER'S 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 labelling of the material originally approved under this specification, whether or not such changes affect the material's 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 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 Specification WSS-M99P9999-A1, unless a different suffix (e.g.,'A2 or A3) is specified on the engineering document for the application. I. APPROVAL 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. Upon request, the Supplier shall submit to ehe affected Materials Engineering activity its own laboratory report to the specification (test results, not nominal values), 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 specification. 5.1 COEFFICIENT OF LINEAR THERMaL FXPANSION 2.6 - 3.6E-5/ C (ASTM D 696) WP 394a-k) Page L of 6 -,-,- ENGINEERING 'MATERIAL SPECIFICATION WSK-M4D708-A 5.2 MOLD SHRINKAGE (IS0 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 0.3 - 1.2 % 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.03 - 0.08 % After 30 minutes at 120 C 0.07 - 0.15 % 5.3 WATER ABSORPTION (IS0 62, 24 h/ASTM D 570, 24 h, SO +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 1.2 - 1.8 % 5.4 IMPACT STRENGTH, IZOD, min (IS0 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning 17 W/m2 The notched specimens shall be immersed .for 48 h in distilled water at 50 +/- 1 C and subsequently conditioned f o r 1 h at 23 +/- 2 C and 50 +/- 5 % relative humidity prior to test and tested under the same conditions within 1 h. WP 3948-5 m Page 5 of 6 9009360 0005b20 691 m -,-,- c - 3 ENGINEERING MATERIAL SPECIFICATION W? 3948-b SHEAR MODULUS / SCHUBMODUL (MPa) Page 6 of 6 = 9009160 0005621 528
