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, 3.13 & 4 A. Reaume1996 01 26 Activated D. Henrickson, LAG Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 3 PADDING, SYNTHETIC/PO
2、LYESTER FIBER, LAMINATE, WSS-M17H171-A NEEDLED, MOLDABLE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a needled, moldable padding consisting of predominately synthetic fibers which may have a bilaminate polyester fiber layer needled on one side for decorative
3、purposes. 2. APPLICATION This specification was released originally for material used as engine compartment sound insulators on the 1998 D/EW vehicles. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION
4、MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 APPEARANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved design center master sample, or shall be as specified on the engineeri
5、ng drawing. 3.5 CONSTRUCTION 3.5.1 Base Pad Homogeneous mixture of 75% minimum synthetic fibers needled together in random orientation. A thermoplastic fiber is included to facilitate the moldable characteristic of this material. 3.5.2 Optional Decorative Facing (Specified on Engineering drawing if
6、required) 100% polyester needled onto base pad. No adhesives are to be used for attachment of facing to base pad. 3.6 WEIGHT As specified on (FLTM BN 106-01) Engineering drawing 3.7 THICKNESS As specified on (SAE J1355) Engineering drawing ENGINEERING MATERIAL SPECIFICATIONWSS-M17H171-A Printed copi
7、es are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 3.8 PHYSICAL PROPERTIES (All physical properties based on material molded to 1.70 kg/m2and 12.7 mm thick) 3.8.1 Specific Strength, min (ASTM D 461) MD 400 kPa AMD 1200 kPa 3.8.2 Tear Resistance and Recovery (FLTM BN 129-01
8、) Method A: No cracking or tearing Method B: 70% recovery, min 3.8.3 Splitting Resistance, min 10 N (ASTM D 461) 3.8.4 Flexibility No delamination or splitting Bend 100 x 200 mm sample 90 around a 25 mm mandrel. 3.8.5 Compression, max 30% (SAE J1352, Procedure 1) 3.8.6 Recovery, min 75% (SAE J1352,
9、Procedure 1) 3.9 FLUID RESISTANCE, max, (volume swell) Motor Oil WSD-M2C904-A* +5% Brake Fluid ESA-M6C25-A* +5% Engine Coolant ESE-M97B44-A* +10% Transmission Fluid ESR-M2C138-CJ* +5% Window Washer Solvent ESR-M17P5-A* +10% 5% Aqueous NaCl Solution +5% 10% Aqueous H2S04 Solution +5% Test Method: Fro
10、m a sample molded to 1.70 kg/m2and 7 mm thick, cut pieces 50 x 50 mm. Measure all three dimensions, then immerse in test fluids for 24 hours at room temperature. Remove and measure after 1 hour. *Or currently released equivalent fluid (see para 5.1.) 3.10 HOT WATER RESISTANCE, max, (volume swell) +1
11、0% Immerse test samples (same size as in 3.9) in water 95 C for 2 hours. Remove samples and recheck dimensions after 30 minutes. 3.11 ODOR, max Rating 3 (SAE J1351) ENGINEERING MATERIAL SPECIFICATIONWSS-M17H171-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of
12、 3 3.12 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 For information on currently approved engine coolants for use in this specifica
13、tion contact: Materials Laboratory 15/GM-DOI-D Fluids Materials Section Research and Engineering Center Coolants/Greases Ford Motor Company Ltd Engine Engineering Laindon, Basildon P.O. Box 2053 Essex SS15 6EE, England 21500 Oakwood Blvd. Dearborn, MI 48121 U.S.A. Materials Engineering Product Engineering Office Ford Motor Co. of Australia Ltd Princes Highway, Norlane Victoria 3214, Australia
