1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Changes Rev. 22008 11 03 N-STATUS Replaced by WSS-M8P16-B L. Sinclair, FNA 1995 05 25 Activated D. Henrickson LAG WP 3948-a Page 1 of 5 CARPET, POLYESTER, RANDOM DILOUR, NEEDLED WSS-M3H106-A2 AND SHEARED, LATEX BACKCO
2、ATED, 560 g/m2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a random dilour, needled, sheared non-woven carpet of good quality and uniform composition. The carpet is backcoated with asynthetic latex for improved dimensional integrity. 2. APPLICATION This speci
3、fication was released originally for material used as a seat trim toe-kick on the 1996 Taurus/Sable. 3. REQUIREMENTS In addition to the requirements listed herein, the end-item carpet assembly (molded or otherwise fabricated), shall meet all the applicable requirements of WSB-M15P4-D performance spe
4、cification for interior trim assemblies, unless otherwise specified on the Engineering Drawing. 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
5、materials. A Control Plan for ongoing production 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 proce
6、ss/product data and assure consistent processing 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 A
7、ND/OR THERMAL ANALYSIS Ford Motor Company at its option, may conduct infrared and/or thermal analysis of materials/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
8、 material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. ENGINEERING MATERIAL SPECIFICATION WSS-M3H106-A2 WP 3948-b Page 2 of 5 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are
9、 based on materials 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 of test specimens taken from prod
10、uction representative assemblies. 3.5 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 60 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.6 APPEARANCE (FLTM BN 109-01) The color, pattern and finish shall match the approved Design Center master sample, or shal
11、l be as specified on the engineering drawing. 3.7 COMPOSITION (ASTM D 276) Fiber 100 % Polyester Backcoating Synthetic Latex 3.8 METHOD OF DYEING Stock dyed or equivalent 3.9 CONSTRUCTION 3.9.1 Fiber Size & Description 13 - 18 dtex (ASTM D 1244) 3.9.2 Pile Height, min 3.0 mm (ASTM D 418) 3.10 WEIGHT
12、, Range (FLTM BN 106-01) Pile Fiber 513 - 708 g/m2 Backcoating 135 - 203 g/m2 Total 648 - 911 g/m2 ENGINEERING MATERIAL SPECIFICATION WSS-M3H106-A2 WP 3948-b Page 3 of 5 3.11 PHYSICAL PROPERTIES 3.11.1 Heat Shrinkage, max 0.8 % (FLTM BN 105-01, both directions, except instead of water, expose sample
13、 to 7 days at 82 C) 3.11.2 Dimensional Stability, max 1.5 % (FLTM BN 105-03, 4 days, both directions) 3.11.3 Breaking Strength, min (ASTM D 5034, Grab Method 305 mm/minute jaw speed) MD 800 N AMD 650 N 3.11.4 Elongation at 222 N, max (ASTM D 5034, Grab Method) MD 10 % AMD 10 % 3.11.5 Trapezoidal Tea
14、r, min (ASTM D 1117, Integration method*) MD 60 N AMD 75 N * As approved by the responsible Materials Engineering Activity 3.12 WEAR PROPERTIES 3.12.1 Abrasion, min (SAE J1530A, H-10 wheels, 500 g load) Original 1200 cycles Aged 225.6 kJ/m2 1000 cycles (SAE J1885) The material shall exhibit no evide
15、nce of excessive penetration to the foundation of the pile fibers in the abraded area. Production material shall be equal to or better than that exhibited by the Carpet Proposal approved for production by the Materials Engineering Activity. ENGINEERING MATERIAL SPECIFICATION WSS-M3H106-A2 WP 3948-b
16、Page 4 of 5 3.12.2 Resistance to Snagging, min 50 cycles (SAE J1530A, 500 g, H-18 wheels) After testing, the specimen shall not show any signs of surface snagging or pilling of individual fibers or yarns greater than the sample originally approved by the Materials Engineering Activity. 3.13 APPEARAN
17、CE PROPERTIES 3.13.1 Resistance to Fade, min (SAE J1885 and ISO 105-A02/ AATCC Evaluation Procedure 1) Xenon Arc Exposure Rating 3 225.6 kJ/m2 The material shall be rated after exposure using the AATCC Gray Scale for Evaluating Change in Color (10 Step). Production materials shall exhibit fade resis
18、tance qualities equal to or better than the Master Sample approved for production by the Materials Engineering Activity. 3.13.2 Fiber Deterioration No excessive deterioration of fibers or yarns after the above xenon arc exposure. The resistance to deterioration of production material shall be equal
19、to or better than that exhibited by the master sample approved by the Materials Engineering Activity. Test Method: Firmly apply a piece of 3Ms Highland Brand 6200 Permanent Mending Tape to the surface of the exposed fabric (yarn). Then rapidly strip the tape and mount it on a sheet of light or dark
20、cardstock which contrasts with the color of the fiber. Repeat the test with a new piece of tape on a unexposed sample and compare the length and quantity of fibers removed by the tape. Report fiber deterioration if a significantly larger number of fibers (usually of shorter lengths) are removed from
21、 the exposed versus unexposed sample. 3.13.3 Heat Aging, min Rating 4-5 (7 days at 102 C and ISO 105-A02/ AATCC Evaluation Procedure 1) No individual yarn or combination of yarns shall exhibit fiber degradation or color tone change. Backcoatings, if applied, shall exhibit no color change or degradat
22、ion. 3.13.4 Bleeding and Perspiration, min Rating 4 (FLTM AN 101-01 and AATCC Evaluation Procedure 3) Compared to the AATCC Chromatic Transference Scale (latest edition). ENGINEERING MATERIAL SPECIFICATION WSS-M3H106-A2 WP 3948-b Page 5 of 5 3.13.5 Dry and Wet Crocking, min Rating 4 (FLTM BN 107-01
23、and AATCC Evaluation Procedure 3) 3.14 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 3.15 ADDITIONAL REQUIREMENTS Specific requirements for material and/or manufactured parts shall be specified on the Engineering drawing, Engineering parts specification and/or performance specificati
24、ons. All critical areas with respect to these properties shall be clearly designated on the Engineering drawing. 3.16 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 m
25、aking any changes in the properties, composition, 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, Toxicolog
26、y 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 appl
27、y to the materials addressed by this document. The restrictions are defined in Engineering Material specification WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS Materials defined by this specification must have prior engineering approval by the responsible Materials Engineering activity. Suppliers desiri
28、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 a completed copy of their laboratory test reports, signed by a q
29、ualified and authorized representative of the test facility, 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 an assessment of suitability for intended processes and/or applications. Upon approval, the material will be added to the Engineering Material Approved Source List.
