1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Release No. Released Rev. 3 2008 11 03 N-STATUS A - Replaced by WSS-M8P16-B L. Sinclair, FNA1994 05 10 NB00I10043054328 Released A2 D.Henrickson AJS BCF 1993 12 10 NB00I10043054302 Released A G.E. Hess A.J. Stocki B. Ferns W
2、P 3948-a Page 1 of 5 CARPET, POLYPROPYLENE, DILOUR, NEEDLED, MOLDABLE WSB-M3H104-A NOT TO BE USED FOR NEW DESIGN CARPET, POLYPROPYLENE, DILOUR, NEEDLED, LATEX BACKCOATED WSB-M3H104-A2 1. SCOPE The materials defined by these specifications are dilour, needled, nonwoven carpets of good quality and uni
3、form composition. WSB-M3H104-A is precoated with a synthetic latex and has a polyethylene backcoating. WSB-M3H104-A2 is backcoated with a synthetic latex. 2. APPLICATION WSB-M3H104-A was originally released for material used as a moldable load floor covering for sport utility and station wagon vehic
4、les. WSB-M3H104-A2 was originally released for material used as a seat back covering material for sport utility and station wagon vehicles. 3. REQUIREMENTS 3.1 STATISTICAL PROCESS Suppliers must conform to the requirements of Ford Quality System Standard Q-101. A mutually acceptable Control Plan as
5、described therein is required for 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
6、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 material laboratory. All samples shall produce IR spectra and thermo
7、grams that correspond to the reference 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 te
8、sting and tested under the same conditions unless otherwise specified. ENGINEERING MATERIAL SPECIFICATION WSB-M3H104-A/A2 WP 3948-b Page 2 of 5 3.4 SAMPLE SELECTION All evaluations shall be conducted on test specimens taken from production representative molded carpet assemblies. Test specimens for
9、strength properties shall be taken from 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
10、match the approved Design Center master sample, or shall be as specified on the engineering drawing. 3.7 COMPOSITION (ASTM D 274) A A2 Fiber 100 % polypropylene, 100 % polypropylene, UV resistant UV Resistant Precoat Latex - Backcoating Polyethylene Latex 3.8 METHOD OF DYEING (A & A2) Solution dyed
11、or equivalent 3.9 CONSTRUCTION (A & A2) 3.9.1 Fiber Size & Description 20 - 22 dtex (polypropylene (ASTM D 1244) pigmented dyed, 76 - 82 mm staple) 3.9.2 Pile Height, min 7.6 mm (ASTM D 418) ENGINEERING MATERIAL SPECIFICATION WSB-M3H104-A/A2 WP 3948-b Page 3 of 5 3.10 WEIGHT, g/m2, Range (FLTM BN 10
12、6-01) A A2 Pile Fiber 440 - 510 440 - 510 Latex precoat 100 - 170 - Polyethylene backcoating 270 - 340 - Latex Backcoating - 100 - 170 Total 810 - 1020 540 - 680 3.11 PHYSICAL PROPERTIES 3.11.1 Breaking Strength, min (ASTM D 1682, Grab Method) MD 445 N AMD 445 3.11.2 Heat Shrinkage, max 2.5 % (FLTM
13、BN 105-01, both directions, except instead of water, expose sample to 7 days at 82 C) 3.11.3 Dimensional Stability, max 1.0 % (FLTM BN 105-03, 4 days, both directions) 3.11.4 Trapezoidal Tear, both directions, min 200 N (ASTM D 1117, Integration Method*) *As approved by the responsible Materials Eng
14、ineering Activity. 3.12 WEAR PROPERTIES 3.12.1 Abrasion, min (SAE J1530A, H-10 wheels, 500 g load) 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 Carp
15、et Proposal approved for production by the Interior Materials Engineering Section. 3.12.1.1 Original 1200 cycles 3.12.1.2 Aged 488.8 kJ/m2 1000 cycles (SAE J1885) ENGINEERING MATERIAL SPECIFICATION WSB-M3H104-A/A2 WP 3948-b Page 4 of 5 3.12.2 Resistance to Snagging, min 50 cycles (SAE J1530A, 500 g,
16、 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 APPEARANCE PROPERTIES 3.13.1 Resistance to Fade, min (SAE J1885 and AATCC Evaluation
17、 Procedure 1) Xenon Arc Exposure Rating 3 488.8 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 resistance qualities equal to or better than the Master Sample approved for production by the
18、Interior Materials Engineering Section. 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 to or better than that exhibited by the master sample approved by the Interior Ma
19、terials Engineering Section. 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 cardstock which contrasts with the color of the fiber. Repeat the test wi
20、th 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 the exposed versus unexposed sample. 3.13.3 Heat Aging, min Rating 4-5 (
21、7 days at 102 C and 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 degradation. 3.13.4 Bleeding and Perspiration, min Rating 4 (FLTM AN 101-01 and AATCC Evaluati
22、on Procedure 3) Compared to the AATCC Chromatic Transference Scale (latest edition). ENGINEERING MATERIAL SPECIFICATION WSB-M3H104-A/A2 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, m
23、ax 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 specifications. All critical areas with respect to these properties shall be clearly designated
24、 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 making any changes in the properties, composition, construction, color, processing or
25、 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 activity of the proposed changes and obtain
26、 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. The restrictions are defined in Engin
27、eering 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 desiring approval of their materials shall first obtain an expression of interest from the
28、 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, demonstrating full comp
29、liance 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.
