1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Release No. Released Rev. 2 2008 10 30 N-STATUS Replaced by WSS-M8P16-B L. Sinclair, FNA 1993 08 12 NB00I10043054276 Released G.E. Hess B. Ferns WP 3948-a Page 1 of 5 CARPET, POLYESTER, RANDOM VELOUR, NEEDLED, WSB-M3H87-D NO
2、T TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a random velour, needled, non-woven carpet of good quality and uniform composition laminated with a latex backcoating and a polyethylene film and backed with a polyester felt for vibration welding attachment to an ABS
3、 substrate. 2. APPLICATION This specification was released originally for material used as a door trim cover on the 1994 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 requireme
4、nts of WSB-M15P4-D INTERIOR TRIM-ASSEMBLY PERFORMANCE SPECIFICATION, unless otherwise specified on the Engineering Drawing. 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 fo
5、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. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company at its option, may conduct infrared and/or thermal analysis
6、 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 material laboratory. All samples shall produce IR spectra and thermograms that correspond to the ref
7、erence standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are 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
8、conditions unless otherwise specified. ENGINEERING MATERIAL SPECIFICATION WSB-M3H87-D WP 3948-b Page 2 of 5 3.4 SAMPLE SELECTION All evaluations shall be conducted of test specimens taken from production representative molded carpet assemblies. Test specimens for strength properties shall be taken f
9、rom molded or stressed areas of the carpet assembly. 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 mas
10、ter sample, or shall be as specified on the engineering drawing. 3.7 COMPOSITION (ASTM D 276) Fiber Polyester Backcoating Synthetic Latex Laminating Film Polyethylene Backing/Substrate Vibration Weldable Polyester Felt 3.8 METHOD OF DYEING Stock dyed or equivalent 3.9 CONSTRUCTION 3.9.1 Fiber Size &
11、 Description 13 - 18 dtex (ASTM D 1244) 3.9.2 Pile Height, min 3.5 mm (ASTM D 418) ENGINEERING MATERIAL SPECIFICATION WSB-M3H87-D WP 3948-b Page 3 of 5 3.10 WEIGHT, Range (FLTM BN 106-01) Pile Fiber 407 - 475 g/m2 Backcoating 89 - 115 g/m2 Laminating Film 339 - 475 g/m2 Backing/Substrate 122 - 149 g
12、/m2 Total 957 - 1214 g/m2 3.11 PHYSICAL PROPERTIES 3.11.1 Breaking Strength, min (ASTM D 1682, Grab Method) MD 800 N AMD 650 N 3.11.2 Cold Flexibility No cracking 3.11.3 Heat Shrinkage, max 0.8 % (FLTM BN 105-01, both directions, except instead of water, expose sample to 7 days at 82 C) 3.11.4 Dimen
13、sional Stability, max 0.8 % (FLTM BN 105-03, 4 days, both directions) 3.11.5 Trapezoidal Tear, both directions, min 75 N (ASTM D 1117, Integration Method*) *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)
14、The material shall exhibit no evidence 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 Interior Materials Engineering Section. 3.12.1.1 Origina
15、l 1200 cycles 3.12.1.2 Aged 225.6 kJ/m2 1000 cycles (SAE J1885) ENGINEERING MATERIAL SPECIFICATION WSB-M3H87-D WP 3948-b 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 in
16、dividual fibers or yarns greater than the sample originally approved by the Materials Engineering Activity. 3.13 APPEARANCE PROPERTIES 3.13.1 Resistance to Fade, min (SAE J1885 and AATCC Evaluation Procedure 1) Xenon Arc Exposure Rating 3 225.6 kJ/m2 The material shall be rated after exposure using
17、the AATCC Gray Scale for Evaluating Change in Color (10 Step). Production materials shall exhibit fade resistance qualities equal to or better than the Master Sample approved for production by the Interior Materials Engineering Section. 3.13.2 Fiber Deterioration No excessive deterioration of fibers
18、 or yarns after the above xenon arc exposure. The resistance to deterioration of production material shall be equal to or better than that exhibited by the master sample approved by the Interior Materials Engineering Section. Test Method: Firmly apply a piece of 3Ms Highland Brand 6200 Permanent Men
19、ding Tape to the surface of the exposed fabric (yarn). Then rapidly strip the tape and mount it on a sheet of light or dark 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 t
20、he tape. Report fiber deterioration if a significantly larger number of fibers (usually of shorter lengths) are removed from the exposed versus unexposed sample. 3.13.3 Heat Aging, min Rating 4-5 (7 days at 102 C and AATCC Evaluation Procedure 1) No individual yarn or combination of yarns shall exhi
21、bit fiber degradation or color tone change. Backcoatings, if applied, shall exhibit no color change or degradation. 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 MATERI
22、AL SPECIFICATION WSB-M3H87-D WP 3948-b Page 5 of 5 3.13.5 Dry and Wet Crocking, min Rating 4 (FLTM BN 107-01 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
23、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. 3.16 SUPPLIERS RESPONSIBILITY All materials supplied to this specification mus
24、t be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making 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
25、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 samples and a new code identif
26、ication 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 specification WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS Materials defined by this specifica
27、tion must have prior engineering approval by the responsible Materials Engineering activity. Suppliers desiring 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
28、 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 requirements of this specification (test results, not nominal values), the material des
29、ignation 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.
