1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions Ver. 2 2008 10 29 N-STATUS No Replacement Named L. Sinclair, FNA 2000 08 02 Activated M. Dumitrescu Printed copies are uncontrolled Page 1 of 4 Copyright 2008, Ford Global Technologies, Inc. CARPET, BCF NYLO
2、N, ITAL PATTERN, LATEX, BACKCOATED, WSS-M3H124-A2 SEATBACK APPLICATIONS 220 g/m2NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is bulked continuous filaments (BCF) nylon, cut pile carpet, tufted into a synthetic primary foundation. WSS-M3H124-A2 is then coated with
3、 a latex backcoating. 2. APPLICATION WSS-M3H124-A2 was originally released for material used for seat back applications 3. REQUIREMENTS In addition to the requirements listed herein, the end-item carpet assembly (molded or otherwise fabricated), shall meet all requirements of the WSS-M8P16-A & WSS-M
4、15P2-C performance specification for trim applications. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to Quality System Requirements, QS-9000. Material specification requirements are to be used for initial qualification of materials. A Control Plan for ongoing pr
5、oduction verification is required. This plan must be reviewed and approved by the relevant Ford Materials activity and/or Ford Supplier Technical Assistance (STA) prior to production parts submission. Appropriate statistical tools must be used to analyze process/product data and assure consistent pr
6、ocessing of the materials. Part producers using this material in their products, must use Ford approved materials and must conform to a process control plan which has been approved by STA and/or the relevant Materials Activity. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Compan
7、y, 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 shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall
8、produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. ENGINEERING MATERIAL SPECIFICATION WSS-M3H124-A2 Page 2 of 4 Copyright 2008, Ford Global Technologies, Inc. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are ba
9、sed on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. 3.4 SAMPLE SELECTION All evaluations shall be conducted on test specimens taken from finished
10、 roll goods prior to any subsequent operations, such as reheating or molding. 3.5 APPEARANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved Design Center master sample, or shall be specified on the engineering drawing. 3.6 COMPOSITION (ASTM D 276) Pile Yarn Nylon Primary Fo
11、undation Material * Backcoating Latex * * As specified on the Approved Source List * As required to achieve specified tuft lock and fiber weight loss per the performance specifications WSS-M8P16-A. 3.7 CONSTRUCTION 3.7.1 Pile Yarn (ASTM D 418) 105 - 115 tex t0 (nylon, crimped texture, bulked continu
12、ous filament, 1.0 - 1.5 tex) 3.7.2 Pile Count, min (ASTM D 418) Rows 50.4/100 mm Stitches 44.1/100 mm Rows and stitches per 100 mm shall be based on an average count on a 254 mm length of carpet and shall not exceed minus 2/100 mm. ENGINEERING MATERIAL SPECIFICATION WSS-M3H124-A2 Page 3 of 4 Copyrig
13、ht 2008, Ford Global Technologies, Inc. 3.7.3 Foundation Materials Primary (Tufting Foundations) * * As specified on the Approved Source List 3.7.4 Backcoating 3.7.4.1 Latex The latex shall form a continuous and uniform coating over the back of the carpet so that all Pile fibers are covered. The lat
14、ex shall be thoroughly cured and shall maintain its ability to lock in the pile fibers in the end-item, molded carpet assembly. The latex shall thoroughly saturate the base of the pile fiber bundles to ensure adequate tuft lock. Penetration of the latex through to the face shall be controlled to pro
15、vide the required resistance to abrasion and fiber loss, but the backcoating shall not be visible on the face of the pile fiber. 3.7.5 Needle Gauge 1.98 mm 3.7.6 Pile Height, min 2.5 mm (ASTM D 418) 3.8 WEIGHT, g/m2, range (ASTM D 418/FLTM AN 102-02) Pile Yarn 220-270 Primary Foundation Material * L
16、atex* 136g/m2* As specified on the Approved Source List * As required to meet the tuft pull, fiber weight loss, abrasion requirements on the end item molded carpet per WSS-M8P16-A. 3.9 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute ENGINEERING MATERIAL SPECIFICATION WSS-M3H124-A2 Page
17、 4 of 4 Copyright 2008, Ford Global Technologies, Inc. 3.10 ADDITIONAL REQUIREMENTS Specific requirements for material and/or manufactured parts shall be specified on the Engineering drawing, Engineering parts specification and/or performance specification. All critical areas with respect to these p
18、roperties shall be clearly designated on the engineering drawing. 3.11 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
19、, construction, color, processing or labeling of the 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 activit
20、y 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.
21、The regulations are defined in Engineering Materials 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 expres
22、sion of interest from the affected Purchasing, Design 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
23、, demonstrating full compliance with all the requirements 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
24、 an assessment of suitability for intended processes and/or applications. Upon approval, the material will be added to the Engineering Material Approved Source List. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. The original carpet construction approved under this specification employed a primary backing as follows: 5.1 COMPOSITION (ASTM D 276) Primary Foundation Material 100 % Polyester
