1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2000 11 21 Revised Updated M. Dumitrescu 2000 05 30 Activated M. Dumitrescu Printed copies are uncontrolled Page 1 of 6 Copyright 2000, Ford Global Technologies, Inc. FABRIC, POLYESTER, POLYURETHANE FOAM, LA
2、MINATE WSS-M5H24-A WINCHESTER PATTERN, CIRCULAR KNIT 1. SCOPE The material defined by this specification is a Winchester pattern, Circular knit fabric, flame laminated to a flame bondable polyether urethane foam. 2. APPLICATION This specification was released originally for material used as a cover
3、material for headliners and sunvisors. 3. REQUIREMENTS In addition to the requirements listed herein, the material when used in a unitized headliner assembly, or bonded to any substrate, shall also meet the requirements of WSS-M15P27-D, when tested as an assembly. Any other applications of this mate
4、rial would require prior approval of Materials Engineering. Material 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 SPECTROP
5、HOTOMETRY AND/OR THERMAL ANALYSIS 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 reference standard when t
6、ested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS 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 other
7、wise specified. ENGINEERING MATERIAL SPECIFICATION WSS-M5H24-A Page 2 of 6 Copyright 2000, Ford Global Technologies, Inc. 3.4 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. 3.5 ROLL GO
8、ODS QUALITY The laminate shall be uniformly bonded, and the fabric shall not delaminate from the foam during shipment, handling, or in-plant processing. 3.6 COMPOSITION (ASTM D 276) Fabric 100 % Polyester Foam Polyether Polyurethane 3.7 FABRIC REQUIREMENTS The following requirements shall be conduct
9、ed on unbonded fabric: 3.7.1 Fiber Description and Construction (ASTM D 1244) Face 16.7 tex f34 (Semi Dull Polyester) 3.7.2 Fabric Count, range (ASTM D 3887) Wales 75 - 83 wales/10 cm Courses 131 - 145 courses/10 cm 3.7.3 Weight, range (FLTM BN 106-01) 107 - 131 g/m23.7.4 Method of Dyeing Piece dyed
10、 ENGINEERING MATERIAL SPECIFICATION WSS-M5H24-A Page 3 of 6 Copyright 2000, Ford Global Technologies, Inc. 3.8 FOAM REQUIREMENTS The foam shall be polyether polyurethane and shall conform to ASTM D 3574 USU E J2. The following test shall be conducted on foam removed from the finished fabric/foam lam
11、inated or from surrogate foam samples when the laminate is less than 4 mm thick. 3.8.1 Tension Test, min 80 kPa (ASTM D 3574, Test E) 3.8.2 Steam Autoclave Aging (ASTM D 3574, Tests E and J2) Retained Tension, min 70% of original (After two autoclave cycles, for 10 h total exposure) Specimen prepara
12、tion: Cut out 25 mm wide strips from the fabric/foam laminate. By hand, carefully peel or cut the foam away from the fabric, taking care to minimize damage to the foam. Die cut tension specimens to recover the thickness of the specimens. Expose and test. 3.9 FABRIC - FOAM LAMINATE REQUIREMENTS 3.9.1
13、 Thickness, Range Production Samples As specified on engineering or pattern drawing Source Approval and 4.0 +/- 0.65 mm Master Samples 3.9.2 Ply Adhesion, both directions, min 6 N * (FLTM BN 151- 05) *The fabric shall not separate cleanly from the foam surface (fabric specimen shall exhibit foam par
14、ticles adhered to the peeled surface). In those cases where a sustained peel cannot be obtained due to the foam tearing or breaking away completely from the fabric, ply adhesion shall be considered acceptable if the peak load prior to break exceeds the above minimum requirement. If the laminate is l
15、ess than 4.0 mm thick and a numerical ply adhesion value cannot be satisfactorily obtained, ply adhesion shall be acceptable if the fabric cannot be separated cleanly from the foam. ENGINEERING MATERIAL SPECIFICATION WSS-M5H24-A Page 4 of 6 Copyright 2000, Ford Global Technologies, Inc. 3.9.3 Resist
16、ance to Abrasion, min 150 cycles (SAE J948, 500 g load, CS-10 wheels) No evidence of excessive surface deterioration. The resistance to abrasion of production material shall be equal to or better than that exhibited by the Fabric Proposal approved by the Materials engineering Activity. 3.9.4 Resista
17、nce to Fade (SAE J1885, ISO 105-A02/ AATCC Evaluation Procedure 1) 112.8 kJ/m2Rating 4 225.9kJ/m2Rating 3 3.9.5 Resistance to heat Aging, min Rating 4 (7 days at 100 +/- 2 C, ISO 105-A02/ AATCC Evaluation Procedure 1) No individual yarn or combination of yarns shall exhibit fiber deterioration or co
18、lor tone change in excess of the above rating. Backcoatings, if applied, shall exhibit only slight color change and no deterioration. 3.9.6 Resistance to Crocking (FLTM BN 107-01, AATCC Evaluation Procedure 3) Dry Rating 4 Wet Rating 4 3.9.7 Resistance to Bleeding and Perspiration, min Rating 4 (FLT
19、M AN 101-01 and AATCC Evaluation Procedure 3) 3.9.8 Soiling and Cleanability, min Rating 3 (FLTM BN 112-08) ENGINEERING MATERIAL SPECIFICATION WSS-M5H24-A Page 5 of 6 Copyright 2000, Ford Global Technologies, Inc. 3.9.9 Strength Properties Materials must meet the original breaking strength and aged
20、breaking as specified below 3.9.9.1 Breaking Strength, min 200 N (ASTM D 5034, Grab Method, 305 mm/minute jaw speed, average of 5 samples, each direction) 3.9.9.2 Ultraviolet Deterioration (SAE J1885) Retained tensile, min (FLTM BN 117-03, Method A) 225.6 kJ/m230% retained strength 3.10 ODOR, max Ra
21、ting 2 (FLTM BO 131-01) 3.11 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog number, min 70 Formation of a clear film, droplets or crystals is cause for rejection. 3.12 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 3.13 ADDITIONA
22、L REQUIREMENTS Additional requirements for material and/or manufactured parts may be specified on the Engineering drawing, Engineering parts specification, performance specification, System Design Specification (SDS) and/or Component Design Specification (CDS). ENGINEERING MATERIAL SPECIFICATION WSS
23、-M5H24-A Page 6 of 6 Copyright 2000, Ford Global Technologies, Inc. 3.14 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 the material originally
24、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 notification of the Company, furthe
25、r 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 document. The restrictions
26、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 approval. These include mat
27、erials 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.
