1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 05 N-STATUS Replaced by WSS-M99P32-B; Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.14, 3.15 Corrected numbering A. Reaume 1990 12 13 NB00I10043054055 Released D. Salow, B.C. Ferns Printed copies are uncontrolled Copyright 2006, Ford Global T
2、echnologies, LLC Page 1 of 2 PADDING, POLYURETHANE FOAM (PUR), SLAB, POLYETHYLENE WSB-M17H164-A FILM COATED, CONTROLLED CELL SIZE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a flame/adhesive laminable polyether polyurethane foam with a controlled cell size an
3、d a polyethylene film laminated to one side as an assembly aid. 2. APPLICATION This specification was released originally for material used in the construction of a low pressure foam-in place headrest. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of ma
4、terials. Vinyl fabric and fabric composites made with this foam must also meet the requirements of the composite Material Specifications as listed in para 5.1. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements
5、For Production Materials (WSS-M99P1111-A). 3.4 THICKNESS Foam 3 - 5 mm or as (FLTM BN 115-07) specified on the engineering drawing Polyethylene Film As required to provide a slip surface The polyethylene film is not intended as a barrier film and should allow adequate adhesion between this foam and
6、the foam-in-place polyurethane foam. 3.5 CELL STRUCTURE The polyurethane foam shall have a small, uniform, and void free cell structure. Visual standards shall be established, as jointly agreed between the foam supplier and the user. 3.6 DENSITY, min 24 kg/m3(ASTM D 3574, Test A) 3.7 TEAR RESISTANCE
7、, min 210 N/m (ASTM D 3574, except test at received thickness) ENGINEERING MATERIAL SPECIFICATIONWSB-M17H164-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.8 OMPRESSION SET, max (FLTM BN 115-07) Normal 15% Steam autoclave aged 33% 3.9 STEAM AUTOCLAVE AG
8、ING (ASTM D 3574, test J2, except 10 h total) 3.9.1 Retained Tensile Strength, min 70% of original (ASTM D 3574, Test E) Test Procedure: Steam autoclave age tensile strength specimens for 10 h at 125 C and determine tensile strength. Determine original tensile strength value and calculate percent re
9、tained tensile strength. 3.10 COMPRESSION FORCE DEFLECTION, min (ASTM D 3574) 25% compression 2.8 kPa 65% compression 4.4 kPa 3.11 ODOR, max Rating 2 (SAE J1351/FLTM BO 131-01) 3.12 FOGGING Fog Number, min 70 (FLTM BO 116-03, except 3 h at 100 C) The formation of a clear film or droplets is cause fo
10、r rejection. Test with the polyethylene skin side up and down. Report most adverse fog value. 3.13 KINETIC FRICTION, max, Avg. of 3 0.735 N (ASTM D 1894, sled weight with foam test sample to be 300 g, cover plane surface with teflon sheet, 305 mm/minute test velocity) Clean the surface of the teflon
11、 with chloroethane before each use. The teflon sheeting may be obtained from F.B. Wright Company, 9999 Mercier, Dearborn, MI 48121 - Teflon Coated Fiberglass No. N961-0062. 3.14 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 Vinyl fabric composites must meet the requirements of ESB-M2F127-A/D. Fabric composites must meet the requirements of ESB-M8P13-B.
