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1、ENGINEERING MATEXIAL SPECIFICATION 1 Date Release No. Releasefievision 1989-08-31 SM/EQ7118 TP Re leased M. Sievert - _ _ Uaterial N e m File Controt Yo. Specification Nvnber POLYAMIDE (PA) 6 , HEAT STABILIZED SMT5004DA9110 WSK-M4D667 -A 10 % MINERAL FILLED 1. 2. 3. SCOPE The material defined by thi
2、s specification is a mineral filled, heat stabilized polyamide 6 molding compound. APPLICATION This specification was released originally for material used for the fuel pipe assembly. NOTICE: This material absorbs and retains moisture. Part design and tolerances must accommodate changes in part dime
3、nsions and physical properties due to moisture absorption or loss in the service/assembly environment. REQUIREMENTS 3.1 STATISTICAL PROCESS 3.2 3.3 Suppliers must conform to the requirements of Ford Quality System Standard Q-101. A mutually acceptable Control Plan as described therein is required fo
4、r material/source approval. Appropriate statistical tools must be used to analyze process/product data so that variation in the final product is continuously reduced. INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of
5、 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 referen
6、ce standard when tested under the same conditions. 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
7、 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. ENGINEERING MATERIAL SPECIFICATION 3.4 3.5 Conduct tests in a controlled atmosphere of 23 +/- 2 C and 50
8、+I- 5 % relative humidity. Individual specimens shall not be removed from closed containers until immediately before testing. MOLDING COMPOUND 3.4.1 Mineral 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 SPECIM
9、EN 3.5.1 3.5.2 3.5.3 3.5.4 3.5.5. 36 - 40 % 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、10 x 4.0 +/- 0.2 Specimens with 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 1.42 - 1.47 g/cm3 (IS0 1183, Method A/ASTM D 792, Method Al) Tensile Strength at Max Load, rnin
11、80 MPa (IS0 R 527/ASTM D 638M, specimen, 5 mm/minute test speed) Flexural Modulus, rnin 5.0 GPa (IS0 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 nun support span) 150 x 10 x 4.0 +/- 0.2 Shear Modulus at 23 C (ASTH D 4065, forced constant amplitude, fixed frequency o
12、f 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) 1.57 - 2.62 G P a Additionally, a Shear Modulus vs. Temperature cume shall be plotted for - 50 to + 210 C temperature range, at 5 C minimum intervals. The plotted curve must be withi
13、n tolerance range shown on page 6. WP 3948-b Page 2 of 6 -,-,- ceJ ENGINEERING MATERIAL SPECIFICATION 3.5.6 3.5.7 3.5.8 Impact Strength, Izod, m i n (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 A t 23 +/- 2 C 4.5 W/m2 3.5.6.2 A t -
14、 40 +/- 2 C 3.5 kJ/m2 The t e s t specimens must be conditioned for minimum of 6 h at the above specified temperature prior t o impact test. Low temperature testing s h a l l be done within the cold box, i f not possible, t e s t can be conducted outside, but within 5 s. H e a t Deflection Temperatu
15、re , m i n (IS0 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 A t 1.82 M P a 3.5.7.2 At 0.45 M P a 75 c 180 c Heat Aging Performance (IS0 188/ASTM D 573, 150 +/- 50 air changesfi, 1000 h at 140 +/- 2 C. After heat .aging .test specimens are. t o be conditioned i n a desiccator for 3 - 5
16、 h . at 23 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Impact Strength, Izod Change +/- 25 % (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (IS0 3795) Burn Rate, max 100 mm/minute The specim
17、en size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (FLTM BO 116-3) Fog Number, min TBD Formation of excessive amounts of clear film or droplets is cause for rejection. WP 3948-b Page 3 of 6 WSK-M4D667-A c - ENGINEERING MATERIAL SPECIFICATION 3.8 A
18、DDITIONAL 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 dra
19、wing. 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 labelling of the materia
20、l originally 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
21、 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 Specifi
22、cation WSS-M99P9999-A1, unless a different suffix (e.g., A2 or A3) is specified on the engineering document. for the application. 4. APPROVAL OF MATERIAIS Materials defined by this specification must have prior approval by the responsible Materials Engineering activity. Suppliers desiring approval o
23、f their materials shall first obtain an expression of interest from the affected Purchasing, Design and Haterkals Engineering activity. Upon reque.st, the Supplier shall submit to the affected Materials Engineering activity its o m laboratory report to the specification (test results, not nominal va
24、lues), 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 INFOEWATION The information below is provided for clarification and assistance in meeting the requirements t
25、o the specification. 5.1 COE,FMCIENT OF LINEAR THERMAL EXPANSION 4.0 - 5.OE-5/ C (ASTH D 696) WP 3948-b = 9007360 0005252 578 -,-,- 5.2 MOLD SHRINKAGE (IS0 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage 0 After 48 h at 23 +/- 2 C 1.1 - 1.4 % 5.2.2 Post Sh
26、rinkage (Separate specimens required for each test) 0 After 48 h at 80 C 0.05 - 0.15 % After 30 minutes at 120C 0.09 - 0.16 % 5.3 WATER ABSORPTION (IS0 62, 24 h/ASTM D 570, 24 h, 50 +/- 1 m diameter, 3.2 +/- 0.2 mm thick specimen) 0.8 - 1.1 % 5.4 IMPACT STRENGTH, IZOD, min (IS0 180, Method A/ASTM D
27、256, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens minimum) 5.4.1 After Moisture Conditioning 24 W/m2 :wP 3948-b The notched specimens shall be immersed for 48 h in distilled water at 50 +/- 1 C and subsequently conditioned for 1 h at 23 +/- 2 C and 50 +/- 5 % relative humidity prior to test and tested under the same conditions within 1 h. Page 5 of 6 - 7009168 0005253 404 -,-,- WSR-M4D667-A ENGINEERING MATERIAL SPECIFICATION SHEAR MODULUS 1 SCHUBMODUL (MPa) Page 6 of 6 WP 3948-b = 7007160 0005254 340