1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2001 03 19 Revised Added A4 & updated M. Dumitrescu 2000 08 08 Activated M. Dumitrescu Printed copies are uncontrolled Page 1 of 3 Copyright 2001, Ford Global Technologies, Inc. CARPET, POLYESTER, DILOUR, NE
2、EDLED, MOLDABLE - WSS-M3H104-A3 LATEX PRECOAT, POLYETHYLENE BACKCOATED CARPET, POLYESTER, DILOUR, NEEDLED, MOLDABLE - LATEX PRECOAT, POLYETHYLENE AND EVA BACKCOATED WSS-M3H104-A4 1. SCOPE The materials defined by these specifications are dilour, needled, polyester fiber, non-woven carpets of good qu
3、ality and uniform composition. The carpet is precoated with a synthetic latex and has a polyethylene backcoating A3 or Polyethylene/EVA backing A4. 2. APPLICATION This specification was originally released for materials used for trunk liner for in the covered storage area (enclosed luggage compartme
4、nt) of the 2001 Ford sport utility. It should not be used in exposed load floor 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-M15P32-C performance specification. Materi
5、al specification requirements are to be used for initial qualification of materials. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must conform to the Companys Quality System Requirements. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS IR spectra and thermograms estab
6、lished 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 reference standard when tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITI
7、ONS All test values indicated herein are based 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. ENGINEERING MATERIAL SPECIFICATION WSS-M3H104-A3/A
8、4 Page 2 of 3 Copyright 2001, Ford Global Technologies, Inc. 3.4 SAMPLE SELECTION All evaluations shall be conducted on test specimens taken from production representative carpet. 3.5 COMPOSITION (ASTM D 276) Fiber 100 % Polyester Pre-coat Latex Backcoating Polyethylene (A3) Polyethylene/EVA (A4) 3.
9、6 METHOD OF DYEING Solution dyed or equivalent 3.7 CONSTRUCTION 3.7.1 Fiber Size and Description 4.9 dtex/7.6 dtex (ASTM D 1244) (polyester) 3.7.2 Thickness, range 1.75 - 2.55 mm (ASTM D 418) 3.8 WEIGHT, g/m2, min (FLTM BN 106-01) A3 A4 Pile Fiber 220 275 220 275 Pre-coat 135 200 125 155 Backcoating
10、 PE 575 640 180 220 Backcoating EVA 1755 2145 Total 930 - 1115 2280 2795 3.9 PHYSICAL PROPERTIES 3.9.1 Shrinkage, +/- 1.5% (FLTM BN 105-01) 3.9.2 Breaking Strength, min (ASTM D 5034, Grab Method, 305 mm/minute jaw speed) A3 A4 MD 550 N 360 N (avg 498 N) AMD 650 N 300 N (avg 498 N) ENGINEERING MATERI
11、AL SPECIFICATION WSS-M3H104-A3/A4 Page 3 of 3 Copyright 2001, Ford Global Technologies, Inc. 3.10 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 to
12、 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 the affected Purchasing, and Materials Engineering activities (with reasons) of the proposed changes. Upon notificati
13、on of the Company, further instructions will be provided. Note: Suppliers should be prepared to provide test data and samples demonstrating compliance to this specification, if requested. Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this do
14、cument. The restrictions are identified in Restricted Substance Management Standard WSS-M99P9999-A1. 4. APPROVAL OF MATERIALS Materials defined by this specification for direct supply to the Company must have prior approval. Certain materials subcontracted by part suppliers may also require prior ap
15、proval. These include materials critical to the Companys business for regulatory, safety, environmental or compatibility requirements or contractual agreements. Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Materials Engineering activity. Upon request, the Supplier shall submit 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.
