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    FORD WSS-M96D39-A2-2006 HOSE SILICONE (VMQ) HIGH TEMPERATURE SOUND ABSORBING TO BE USED WITH FORD WSS-M99P1111-A 《耐高温硅橡胶(VMQ)吸声软管 与标准FORD WSS-M99P1111-A一起使用》.pdf

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    FORD WSS-M96D39-A2-2006 HOSE SILICONE (VMQ) HIGH TEMPERATURE SOUND ABSORBING TO BE USED WITH FORD WSS-M99P1111-A 《耐高温硅橡胶(VMQ)吸声软管 与标准FORD WSS-M99P1111-A一起使用》.pdf

    1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 09 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.17, 3.18 & 4 1995 09 08 Activated E. Duda Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 HOSE, SILICONE (VMQ), HIGH TEMPERATURE, SOUND ABSORB

    2、ING WSS-M96D39-A2 1. SCOPE The material defined by this specification is a long life, high temperature, sound absorbing, oil resistant, ozone resistant, moderate to low pressure silicone rubber hose with ability to service high temperature up to 200 C. 2. APPLICATION The specification was released o

    3、riginally for material used as components of the exhaust air supply hose where sound damping is required. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111

    4、-A). 3.4 CONSTRUCTION The hose shall consist of a silicone elastomeric tube and cover, reinforced with one or more plies of braided, knitted, spiral, or woven para aramid fabric or yarn. 3.5 MATERIAL TESTING 3.5.1 Preparation of Test Specimens Whenever possible, all test specimens shall be die-cut f

    5、rom the finished parts. When not feasible, specimens cut from molded test sheets manufactured from the same material and with equivalent state of cure to molded parts are recommended. The test sheets shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm Tube Cover 3.6 ORIGINAL PROP

    6、ERTIES 3.6.1 Hardness, Durometer A 70 +/- 5 70 +/- 5 (ISO 868/ASTM D 2240 instantaneous, plied-up specimen Hand held durometers shall not be used) 3.6.2 Tensile Strength, MPa, min 4.0 4.0 (ISO 37/ASTM D 412, Die C) 3.6.3 Elongation at Break, min 150 150 (Test Method according to para 3.6.2) ENGINEER

    7、ING MATERIAL SPECIFICATION WSS-M96D39-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 Tube Cover 3.6.4 Modulus at 100% Elongation (Test Method according to para 3.6.2) Elongation, MPa, min 1.5 - 4.0 1.5 - 4.0 (ASTM D 412, Die C) 3.6.5 Silicone Volatiles,

    8、max 0.50% (FLTM AV 102-01, as received at Ford Motor Company) 3.7 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 200 +/- 2 C) 3.7.1 Hardness Change, max +15 +18 3.7.2 Tensile Strength Change, % max -45 -45 3.7.3 Elongation Change, % max -60 -60 3.7.4 Visual Evaluation No surface t

    9、ackiness or cracks when folded flat against itself. 3.8 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 175 +/- 2 C) Tube Cover 3.8.1 Hardness Change, max +20 +20 3.8.2 Tensile Strength Change, % max -35 -40 3.8.3 Elongation Change, % max -65 -72 3.8.4 Visual Evaluation No surface

    10、 tackiness or cracks when folded flat against itself. 3.9 IMMERSION IN CURRENTLY RELEASED ASTM IRM 902 Oil, TUBE ONLY (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.9.1 Hardness Change, max -12 3.9.2 Tensile Strength Change, max -35% 3.9.3 Elongation Change, max -20% 3.9.4 Volume Change, max +16% No

    11、surface tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATION WSS-M96D39-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.10 OZONE RESISTANCE, COVER, max Rating 0 (FLTM BP 101-01, Procedure A or B) 3.11 BURST PRESSURE AF

    12、TER 1000 h at 175 C (ASTM D 380, except for molded hose test on full hose, for straight hose use 250 mm length) Hose I.D. Burst Pressure, min 41 mm 0.5 MPa 3.12 COMPRESSION SET, max 60% (FLTM BP 108-06, 176 h at 204 +/- 2 C) 3.13 ADHESION, min (ASTM D 413, strip specimen, type A) Cover to Tube 1.23

    13、kN/m 3.14 FLEXIBILITY AT -40 C AFTER No cracking of tube or cover HEAT AGING 1000 h at 218 C (FLTM BN 102-01, except use mandrel 10x nominal I.D.) 3.15 RESISTANCE TO KINKING (For 25 mm I.D. and smaller) Applies to formed and straight hoses containing straight lengths equal to or greater then the tes

    14、t length shown below. The hose sample shall be stabilized at room temperature (23 +/- 2 C) before start of test. The test fixture shall consist of 25 mm flat plate with 2 holes for each size hose. Diameters and center distances between holes are tabulated below. With hose bent through 180 and insert

    15、ed in the fixture, with each end of the test length flush with the opposite side, the sample shall show no visible evidence of buckling and shall pass a steel ball freely through the sample hose. Hose Test Center Hole Ball I.D., Length, Distance, Diameter, Diameter, mm mm mm mm mm 25 450 8 x I.D. O.

    16、D.+1.5 mm 0.5 x I.D. nominal 25 300 8 x I.D. O.D.+1.5 mm 0.5 x I.D. nominal 3.16 SOURCE IDENTIFICATION (NAAO requirement only) Each part shall have the suppliers identification which may be either the R.M.A. plateau and pyramid symbols or the R.M.S. assigned color thread in the knit or braid reinfor

    17、cement. The polymer stripe may be used with either above permanent identifications. ENGINEERING MATERIAL SPECIFICATION WSS-M96D39-A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES VMQ


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