1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 05 N-STATUS Replaced by WSS-M99P32-B; Inserted 3.0; Deleted 3.1, 3.2, 3.15, 3.16 & 4 A. Reaume 1992 03 19 NB00I10043054168 Released D. Henrickson, B. Ferns, L. Moriarty Printed copies are uncontrolled Copyright 2006, Ford Global Techno
2、logies, LLC Page 1 of 3 INSULATOR, COMPOSITE, ARAMID/POLYESTER, ALUMINUM WSB-M17H165-A FOIL, POLYESTER, ALUMINUM FOIL NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a bonded composite of an aramid/polyester heat resistant scrim, aluminum foil and a needled polye
3、ster batt. 2. APPLICATION This specification was released originally for material used as a thermal insulator under carpet or mat assemblies in light trucks. The material must be applied with the aramid/polyester heat resistant scrim contacting the hot floorpan surface. 3. REQUIREMENTS Material spec
4、ification 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). 3.3 CONSTRUCTION The polyester fiber la
5、yer shall be bonded between two foil layers. The heat resistant aramid/polyester layer is bonded to the outside of one of the foil layers. The layers shall not separate during shipment, handling or assembly. 3.4 THICKNESS, mm, min As specified on the (FLTM BN 114-01) Engineering drawing 3.5 COMPOSIT
6、ION Only the polyester batt thickness shall vary when different composite thicknesses are specified on the engineering drawing. 3.5.1 Heat resistant scrim, aramid/polyester blend Aramid Fiber . Weight, min 10% . Fiber size 1.7 - 11.0 d tex . Fiber length 19 - 50 mm ENGINEERING MATERIAL SPECIFICATION
7、WSB-M17H165-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 Polyester Fiber . Weight, max 90% . Fiber size 6.8 - 28.0 d tex . Fiber length 50 - 75 mm Thickness of Scrim, min 1.0 mm Weight of Scrim, min 100 g/m23.5.2 Aluminum foil Thickness 0.05 +/- 0.01 mm
8、 3.5.3 Polyester Batt . Weight, min* 32 g/m2per mm of thickness . Fiber size 17 - 38 d tex . Fiber length 50 - 75 mm *Note: Minimum polyester batt weight in g may be determined by subtracting 1 mm from the total composite thickness and multiplying by 32 g/m2. 3.6 BREAKING STRENGTH, min 53 N (ASTM D
9、1682, Test 2C-T) 3.7 COMPRESSION AND RECOVERY (SAE J1352, except as noted below) Dry compression, max 20% Dry recovery, min 75% Note: Cut five 305 x 305 mm samples. Apply a 305 x 305 mm platen weighing 0.23 kg to the five plied samples. Then apply a 4.6 kg load to the center of the pile for 5 minute
10、s to remove any buckling in the aluminum foil. Remove the 4.6 kg load and allow the samples to recover for 24 h. Measure the height of the pile at the center of the vertical sides. The average of these four readings is the initial thickness of the pile (T1). Apply a 2.3 kg load to the center of the
11、pile and immediately measure again for average thickness of the pile with load (T2). Remove the load and allow pile (with platen) to recover thickness for 30 minutes. Measure again for average thickness of the pile (T3). 3.8 DYNAMIC FLEX FATIGUE (FLTM 112-04, Method B, 150 cycles, 267 N load) There
12、shall be no separation or destruction by breakage of the fibers along the rubbing track of the simulated heel both before and after heat aging. Sample preparation: Prepare two 250 x 250 mm samples of the insulator. Heat age one sample for 24 h at 230 C and condition at 23 +/- 2 C for 4 h. Staple bot
13、h samples adjacent each other on a 250 x 500 mm medium to lightweight pile carpet (heat resistant scrim side facing down). Conduct the test as indicated above, making sure the simulated heel passes over both paddings in the same stroke. ENGINEERING MATERIAL SPECIFICATIONWSB-M17H165-A Printed copies
14、are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 3.9 THERMAL CONDUCTIVITY, max 0.049 Wm-1-1 (ASTM C 177, 24 C mean temperature, per 25 mm thickness) 3.10 ODOR, max 2 Rating (SAE J1351) 3.11 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 3.12 FOGGING (FLTM BO
15、116-03) Fog Number, min 60 The formation of droplets or coalescence into a clear film is cause for rejection. 3.13 WEIGHT LOSS, max 5% Test Method: Cut a sample of material weighing approximately 4 to 5 g. Dry the sample in a mechanically convected oven for 16 h at 120 C. Remove from oven and immedi
16、ately determine the weight to the nearest 0.01 g using an analytical balance (W1). Place sample in a muffle furnace for 16 h at 220 C (place sample on aluminum foil in furnace to prevent dirt pick-up). Remove from furnace and immediately reweigh to the nearest 0.01 g (W2). Calculate the % weight los
17、s. W1- W2% Weight Loss = - x 100 W13.14 FUNCTIONAL APPROVAL Materials being evaluated 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.
