1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Changes 2010 01 08 N-STATUS No replacement named J. Crist, NA Revised 3.5.3, 3.5.6, 3.5.7 1988 09 12 CSS1-DR253165 Released WP 3948-a Page 1 of 5 POLYPROPYLENE (PP), IMPACT MODIFIED, HEAT ESB-M4D605-A STABILIZED, 10 %
2、 CALCIUM CARBONATE FILLED NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a thermoplastic injection molding compound based on polypropylene, impact modified, heat stabilized, and filled with calcium carbonate. A foaming agent may be added for better mold fill and
3、 weight reduction. 2. APPLICATION This specification was released originally for material used for applications where good dimensional stability, strength at higher temperatures and living hinge capability are required, such as in the relay module support tray of the 1989 Thunderbird/Cougar. 3. REQU
4、IREMENTS 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 vari
5、ation in 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
6、 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 indicat
7、ed herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 96 h prior to testing and tested under the same conditions unless otherwise specified. 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 10 - 17 g/10 min ENGINEERING MATERI
8、AL SPECIFICATION Material Name Specification Number Date Action Changes 2010 01 08 N-STATUS No replacement named J. Crist, NA Revised 3.5.3, 3.5.6, 3.5.7 1988 09 12 CSS1-DR253165 Released WP 3948-a Page 1 of 5 (ISO 1133/ASTM D 1238, 230 C, 2.16 kg) ENGINEERING MATERIAL SPECIFICATION ESB-M4D605-A WP
9、3948-b Page 3 of 5 3.4.2 Calcium Carbonate Filler Content 8 - 12 % (ISO 3451/1, Method A, 1 h at 870 +/- 25 C) 3.5 MOLDED 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 dimens
10、ions are required: A. 150 min x 12.7 x 3.2 +/- 0.2 mm (Tensile Bar) B. 130 x 12.7 x 3.2 +/- 0.2 mm 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 ISO 294. No annealing allowed. 3.5.2 Density 0.94 -
11、1.00 g/cm (ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Yield, min 25 MPa (ISO R 527/ASTM D 638, 150 min x 12.7 x 3.2 +/- 0.2 mm specimen, 50 mm/min test speed) 3.5.4 Flexural Modulus, min 1.3 GPa (ISO 178/ASTM D 790, Method I, Procedure A, 130 x 12.7 x 3.2 +/- 0.2 mm specimen
12、, 50 mm support span) 3.5.5 Shear Modulus at 23 C 495 - 825 MPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15 %, strain level below 1%. Specimen approx. 60 x 12.7 x 3.2 +/- 0.2 mm cut from the center of specimen A. Additionally, a Shear Modulus vs. Temperature curve shall b
13、e plotted for - 50 to + 160 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5. 3.5.6 Impact Strength, Izod, min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 12.7 x 3.2 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/-
14、2 C 2.6 kJ/m 3.5.6.2 At -40 +/- 2 C 1.9 kJ/m 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, if not possible, test can be conducted outside, but within 5 s. ENGINEERING MATER
15、IAL SPECIFICATION ESB-M4D605-A WP 3948-b Page 4 of 5 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 130 x 12.7 x 3.2 +/- 0.2 mm specimen) 3.5.7.1 At 1.82 MPa 51 C 3.5.7.2 At 0.45 MPa 98 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h at 140 +/- 2 C. Unaged property values shal
16、l be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength Change +/- 15 % (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change, max - 15 % (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, ma
17、x 100 mm/minute The specimen size required for material approval is 355 x 100 x 3.2 +/- 0.1 mm with a smooth surface. 3.7 ADDITIONAL REQUIREMENTS 3.7.1 If material is foamed, the density of the expanded material shall not be less than 80 % of the base material. 3.7.2 Specific requirements for materi
18、al 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. 3.8 SUPPLIERS RESPONSIBILITY All materials suppli
19、ed 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 this specification, whether
20、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 activity. Test data, test sam
21、ples and a new code identification are to be submitted with the request. ENGINEERING MATERIAL SPECIFICATION ESB-M4D605-A WP 3948-b Page 5 of 5 Substance restrictions imposed by law, regulations or Ford, apply to the materials addressed by this document. The restrictions are defined in Engineering Ma
22、terial Specification 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 desiri
23、ng 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 the affected Materials Engineering activity its own laboratory report to the specification (test results, no
24、t 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 re
25、quirements to the specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 6.7E-5/ C (ASTM D 696) 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 1.6 % 5.3 ELONGATION AT BREAK 25 % (Test Method according to para 3.5.3) ENGINEERING MATERIAL SPECIFICATION ESB-M4D605-A WP 3948-b Page 6 of 5
