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 & 4 A. Reaume 1994 08 29 NB00I10043054359 Released GEH, KPM, BCF Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 5 MAT, POLY
2、ESTER, FLAT NEEDLED, WSB-M17H167-A LATEX BACKCOATED, 550 g/m2NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a formable polyester fiber material, which provides acoustical properties without requiring a protective facing. 2. APPLICATION This specification was rel
3、eased originally for material used as a hood insulator on the 1995 Ranger. 3. REQUIREMENTS Material specification 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
4、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 engineering drawing. 3.5 CONSTRUCTION 3.5.1 Fiber Size and Description, nominal 2 dtex
5、 polyester (ASTM D 1244) 3.5.2 Needle Gauge Randomly needled as required to achieve appearance of the approved Design Center master sample 3.5.3 Thickness, +/- 10% 1.25 mm (ASTM D 461, 29 - 204 mm diameter foot, 1.4 kPa pressure) 3.6 WEIGHT 550 g/m2(FLTM BN 106 -01) ENGINEERING MATERIAL SPECIFICATIO
6、NWSB-M17H167-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 3.7 COMPOSITION (ASTM D 276) Fiber 100% polyester Backcoating Synthetic latex 3.8 PHYSICAL PROPERTIES (All physical properties to be tested on original unaged specimens and after heat aging per p
7、ara 3.8.5) 3.8.1 Breaking Strength, min (ASTM D 5034, grab method, 305 mm/minute jaw speed) MD 70 N AMD 75 N 3.8.2 Elongation at 110 N Load, max (ASTM D 5034, grab method, 305 mm/minute jaw speed) MD 10% AMD 10% 3.8.3 Tear Strength (Trapezoid) min (ASTM D 1117, Integration method*) MD 175 N AMD 175
8、N *As approved by the responsible Materials Engineering Activity. 3.8.4 Flexural Modulus, min 450 MPa (ISO R 527/ASTM D 790M, Method I, sample size 12.7 x 50 mm, support span 25 mm, at 23 +/- 2 C) 3.8.5 Heat Aging, min Rating 4 - 5 (14 days at 150 C and AATCC Evaluation Procedure 1) No individual ya
9、rn or combination of yarns shall exhibit fiber degradation or color tone change. Backcoatings, if applied, shall exhibit no color change or degradation. The part shall not exhibit any expansion, shrinkage, or warpage which will interfere with normal functional operation. ENGINEERING MATERIAL SPECIFI
10、CATIONWSB-M17H167-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 5 3.9 WEAR PROPERTIES 3.9.1 Abrasion, min (FLTM BN 108-02, H-10 wheels, 1 kg load and back with S-36 mounting cards) Original 1200 cycles Heat Aged 1200 cycles 3.9.2 Resistance to Bearding No
11、evidence of bearding (SAE J948, Taber Method, 50 cycles, 500 g load H-18 wheels, if required, back with S-36 mounting cards) 3.10 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% Win
12、dow Washer Solvent ESR-M17P5-A* +10% 5% by weight NaC1 In water +5% 10% by weight H 2504 +5% Test Method: Measure all three dimensions, then immerse in test fluid for 24 hours at room temperature. Remove and measure after 1 hour. *Or currently released equivalent fluid (see para 5.1.) 3.11 HOT WATER
13、 RESISTANCE, max, (volume swell) +10% Test samples immersed in water 95 C for 2 hours. Removed samples and recheck dimensions after 30 minutes. 3.12 SOUND ABSORPTION (ASTM C 384) 3.12.1 25 mm Air Gap See Figure 1 3.12.2 13 mm Air Gap See Figure 2 3.13 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max
14、100 mm/minute ENGINEERING MATERIAL SPECIFICATIONWSB-M17H167-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 5 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5
15、1 For information on currently approved engine coolants for use in this specification 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
16、 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 Figure 1 ENGINEERING MATERIAL SPECIFICATIONWSB-M17H167-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5 Figure 2
