1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Release No. Released 2011 07 27 N Status No Replacement Named R. Harris, NA 1994 11 15 Inactivate B Revised and Retyped, was 9 pages 1984 06 05 SM/EQ 5459TP Released WP 3948-a Page 1 of 5 PVC MOULDING COMPOUND COLD AND HEAT
2、RESISTANT NOT FOR NEW DESIGN ESK-M4D469-A PVC MOULDING COMPOUND COLD AND HEAT RESISTANT INACTIVE ESK-M4D469-B 1. SCOPE The material defined by this specification is a cold and heat resistant PVC injection moulding compound with anti-blocking property. 2. APPLICATION This specification was originally
3、 released for material to be used for gear shift gaters. 3. REQUIREMENTS The material shall be conditioned for a minimum of 24 h at 23 +/- 2 C and 50 +/- 5 % relative humidity prior to test and tested under the same conditions unless otherwise specified. Test shall not be conducted earlier than 7 da
4、ys after moulding. The minimum and maximum values of this specification are based on natural colored and pigmented material. Preparation of Test Specimens Preparation of test specimens according to ISO 293. The optimum moulding conditions shall be as recommended by the supplier of the moulding compo
5、und. Test specimens shall be compression moulded and free from strain or cut from strainless compression moulded sheet. Slab stock thickness 1.9 mm to 2.1 mm, except shore hardness specimens shall have a thickness of 6 mm. 3.1 ORIGINAL PHYSICAL PROPERTIES 3.1.1 Density 1.15 - 1.18 Mg/m3 (ISO R 1183,
6、 Method A) 3.1.2 Durometer Hardness Shore A 50 +/- 5 (ISO 868, 15 s dwell) ENGINEERING MATERIAL SPECIFICATION ESK-M4D469-A ESK-M4D469-B WP 3948-b Page 2 of 5 3.1.3 Tensile Strength, min 8 MPa (ISO R 527, Type 2, test speed: 500 mm/minute) 3.1.3.1 Elongation at Break, min 350 % 3.1.3.2 Modulus at 200
7、 % Elongation At 23 C, min 4.5 MPa At - 30 C, max 14 MPa 3.1.4 Tear Strength, min 25 N/mm (ISO 34, Method B, Procedure a) 3.1.5 Cold Resistance - 30 C (FLTM EU-BN 2-1, except specimen size 25 x 150 x 2 mm, diameter of mandrel 10 mm) No cracks or breaks. 3.2 CHANGE AFTER HEAT AGEING (ISO 188, normal
8、over type, 7 d at 80 +/- 1 C, determination of physical properties shall be done after reconditioning of 24 h at 23 C and 50 +/- 5 % relative humidity) 3.2.1 Durometer Hardness Shore A, max +/- 5 Units 3.2.2 Tensile Strength, max + 15 % - 5 % 3.2.2.1 Elongation at Break, max +/- 8 % 3.2.3 Cold Resis
9、tance - 30 C (FLTM EU-BN 2-1, except specimen size: 25 x 150 x 2 mm, diameter of mandrel 10 mm) No cracks or breaks ENGINEERING MATERIAL SPECIFICATION ESK-M4D469-A ESK-M4D469-B WP 3948-b Page 3 of 5 3.3 MIGRATION STAINING (FLTM EU-BP 53-1) After test the contact material shall not show any migration
10、 staining. Slight contact staining is permitted, if not otherwise specified on Engineering drawing. 3.4 DETERMINATION AND MIGRATION STAINING (EU-BN 3-1) No adhesion between test samples. The specimens shall not show any surface deterioration change in color tone or any other defects greater than the
11、 Master Sample approved by the Materials Development Laboratory, Product Engineering. 3.5 FLAMMABILITY 3.5.1 ESK-M4D469-A (ISO 3795) Burn Rate, max 250 mm/minute Unless otherwise specified on drawing. DELTA 3.5.2 ESK-M4D469-B (FLTM EU-BN 24-2) Burn Rate, max 100 mm/minute Note to Flammability: The f
12、lammability shall be determined on 100 x 355 mm specimens with a thickness of 1.0 mm - 1.2 mm and smooth surface. In order to comply with Federal Motor Vehicle Safety Standard No. 302, the materials, portions of components, and composites shall not burn or transmit a flame across their surface, at a
13、 rate of more than 100 mm/minute. To demonstrate compliance, the sample size and method of testing shall be in accordance with FLTM EU-BN 24-2. ENGINEERING MATERIAL SPECIFICATION ESK-M4D469-A ESK-M4D469-B WP 3948-b Page 4 of 5 3.5.2.1 Performance-Environmental Ageing Requirement All materials, porti
14、ons of components, and composites defined by this specification that have not been treated, modified or reformulated, and exceed a maximum burn rate of 75 mm per minute as specified by the Flammability Lot Sampling Plan of FLTM EU-BN 24-2, must be evaluated for permanancy of the materials flame reta
15、rdant properties per SK-M99P9500-A. Table 1 according to the accelerated environmental ageing requirements applicable to the basic material category of this particular specification. Any material, portions of components, and composites defined by this specification that have been treated, modified o
16、r reformulated to conform to Flammability Lot Sampling Plan of FLTM EU-BN 24-2 regardless of maximum burn rate, must be evaluated for both permanency of materials flame retardant properties and changes in mechanical, chemical and physical properties per SK-M99P9500-A, Table 1 applicable to the basic
17、 material category of this particular specification. 3.6 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 approva
18、l 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. 3.7 SUBSTANCE CONTROL Legal, health, safety and environment
19、al constraints may apply to the materials which are submitted for approval to this specification. Refer to Engineering Material Specification SK-M99P9999-A. 3.8 REQUIREMENTS FOR THE FINISHED PART As specified on Engineering Drawing. ENGINEERING MATERIAL SPECIFICATION ESK-M4D469-A ESK-M4D469-B WP 394
20、8-b Page 5 of 5 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 th
21、e material 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 ap
22、proval 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 Materia
23、ls Specification WSS-M99P9999-A1. 4. 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, Des
24、ign and Materials Engineering activity. 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 requi
25、rements of this specification (test results, 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, the material will be added to the Engineering Material Approved Source List.
