1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 05 N-STATUS Replaced by WSS-M99P32-B; Ins 3.0; Del 3.1, 3.2, 3.3, 3.14, 3.15 & 4 A. Reaume 1995 03 30 Activated D. Henrickson, LAG Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 2 INSULATION, AC
2、OUSTICAL, POLYOLEFIN/POLYESTER FIBERS, WSS-M17H169-A1 NON-WOVEN, POLYOLEFIN SCRIM, LAMINATE, 200 G/M2INSULATION, ACOUSTICAL, POLYOLEFIN/POLYESTER FIBERS, WSS-M17H169-A2 NON WOVEN, POLYOLEFIN SCRIM, LAMINATE, 400 G/M2NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications
3、 are non-woven fibrous batts of good quality and uniform construction laminated to a non-woven scrim. 2. APPLICATION These specifications were released originally for materials used as sound absorbing insulators on door panels and back panels of 1996 F-Series trucks. 3. REQUIREMENTS Material specifi
4、cation requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 COMPOSITION, % by weight (ASTM D 629)
5、WSS-M17H169-A1 WSS-M17H169-A2 3.4.1 Polyolefin fibers 54 +/- 5 75 +/- 4 3.4.2 Polyester fibers 29 +/- 4 16 +/- 2 3.4.3 Polyolefin scrim 17 +/- 2 9 +/- 1 3.5 WEIGHT, g/m2200 +32/-8 400 +64/-16 (ASTM C 167) 3.6 THICKNESS, cm 1.2 +/- 0.2 1.5 +/- 0.2 (SAE J1355,except use 80 g pressure plate) 3.7 BREAKI
6、NG STRENGTH, N, min 20 25 (ASTM D 5034, Grab Method, use max load) ENGINEERING MATERIAL SPECIFICATIONWSS-M17H169-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.8 WEIGHT LOSS, max 5% Test Method: Cut a sample of material weighing approximately 4 to 5
7、 g. Determine the weight to the nearest 0.01 g using an analytical balance (W1). Place sample in an oven with no air flow directed onto the sample for 16 h at 110 +/- 2 C. Remove from the oven and immediately reweigh to the nearest 0.01 g. (W2). Calculate the % weight loss. % Weight Loss = W1- W2x 1
8、00 W13.9 FOGGING (FLTM BO 116-03, 100 C, 3 h) Fog Number, min 60 Formation of a clear film, droplets or crystals is cause for rejection. 3.10 ODOR, max, dry/wet 2 Rating (SAE J1351) 3.11 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 3.12 FUNCTIONAL APPROVAL Materials being evaluated
9、for approval to this specification shall be subjected to a production trial. Functional trial results must be approved by the affected assembly operation and Design Engineering. Results shall be made available to Materials Engineering prior to material approval and release. 3.13 ACOUSTICAL PERFORMAN
10、CE Acoustical performance of these materials must be evaluated and approved by the appropriate NVH Development activity before being released for use. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications.
11、5.1 USE RESTRICTIONS These materials are not intended for use as thermal insulators. They are not recommended for use in areas where ambient or operating temperatures exceed 90 C for continuous periods of time exceeding 96 hours. These materials are intended for use only in areas where there will not be any load bearing or compressive conditions.
