1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 06 24 N-STATUS Replaced by WSE-M96D34-A1/A5 C. Mracna, FNA 2006 08 16 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.4, 3.21, 3.22 & 4 1987 11 13 Released NE01I10001295000 Printed copies are uncontrolled Copyright 2010, Ford Global Technologie
2、s, LLC Page 1 of 6 HOSE, EPDM RUBBER PARA-ARAMID FIBERS WSE-M96D14-A1 REINFORCED - ENGINE COOLANT AND STEAM RESISTANT HOSE, EPDM RUBBER META-ARAMID FIBERS WSE-M96D14-A2 REINFORCED - ENGINE COOLANT AND STEAM RESISTANT NOT TO BE USED FOR NEW DESIGN 1. SCOPE These specifications define long life, high
3、pressure EPDM rubber coolant hoses internally reinforced with para-aramid fibers (WSE-M96D14-A1) or meta-aramid (WSE-M96D14-A2) fibers. 2. APPLICATION WSE-M96D14-A1 hose specification was released originally for high strength, high temperature applications where resistance to hot coolant and steam i
4、s paramount, such as in by-pass, heater and radiator hoses. The hose will continuously withstand 125 C coolant and 140 C ambient air temperatures. Hose should be used with a good interference fit to compensate for the poor compression set. WSE-M96D14-A2 hose specification was released originally for
5、 the same applications as WSE-M96D14-A1, however it should be specified only where excessive impulse and/or flex resistance are required. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Pr
6、oduction Materials (WSS-M99P1111-A). 3.3 DYNAMIC MECHANICAL ANALYSIS (ASTM D 4065) Ford Motor Company, at its option, may establish a shear modulus/damping vs. temperature curves plotted for -50 to +150 C temperature range for material/parts supplied to this specification. The shear modulus and damp
7、ing curves established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce shear modulus and damping curves that correspond to the reference standard when tested under the same conditions. 3.5 HOSE CO
8、NSTRUCTION The hose shall consist of an EPDM rubber tube and cover internally reinforced with para-aramid fibers (WSE-M96D14-A1) or meta-aramid fibers (WSE-M96D14-A2). The following tests where possible, shall be performed on finished hoses and/or test specimens cut from them in accordance with ASTM
9、 D 3183 (cutting knife procedure preferred). Greater variation in test values can be anticipated when evaluating materials that are thinner than recommended by an applicable Industry Standard/Test Method. ENGINEERING MATERIAL SPECIFICATIONWSE-M96D14-A1/A2Printed copies are uncontrolled Copyright 201
10、0, Ford Global Technologies, LLC Page 2 of 6 3.6 ORIGINAL PROPERTIES Tube Cover 3.6.1 Hardness, Durometer A 60 - 72 65 - 77 (ASTM D 2240, instantaneous, Plied-up specimen) 3.6.2 Tensile Strength, MPa, min 10.5 9.5 (ASTM D 412, Die C) 3.6.3 Elongation, % min 375 300 (ASTM D 412, Die C) 3.6.4 Modulus
11、at 100 % Elongation, 2.0 3.4 MPa, min (ASTM D 412, Die C) 3.6.5 Ozone Resistance, Cover, max - Rating 0 (FLTM BP 101-01, Procedure A or B) 3.7 HEAT AGED Tube Cover (ASTM D 573, 168 h at *) 135 C 150 C Hardness Change, max +10 +17 Tensile Strength Change, % max -18 -22 Elongation Change, % max -59 -7
12、2 3.8 HEAT AGED Tube Cover (ASTM D 573, 1000 h at *) 120 C 135 C Hardness Change, max +15 +25 (Not to exceed 90) Tensile Strength Change, % max -25 +15 Elongation Change, % max -69 -88 * Temperature tolerance +/- 2 C 3.9 IMMERSION IN CURRENTLY RELEASED ENGINE COOLANT 50/50% v/v MIXTURE WITH DISTILLE
13、D WATER, TUBE ONLY (FLTM BO 130-01, 168 h at 125 +/- 2 C, see Para 5.1) Hardness Change, max +/- 8 Tensile Strength Change, max -20% Elongation Change, max -29% Volume Change, max +4.0% ENGINEERING MATERIAL SPECIFICATIONWSE-M96D14-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Global Tech
14、nologies, LLC Page 3 of 6 3.10 IMMERSION IN CURRENTLY RELEASED ENGINE COOLANT 50/50 % v/v MIXTURE WITH DISTILLED WATER, TUBE ONLY (FLTM BO 130-01, 1000 h at 125 +/- 2 C, see Para 5.1) Hardness Change, max +/- 8 Tensile Strength Change, max -22% Elongation Change, max -30% Volume Change, max +4.5% 3.
15、11 BURST PRESSURE, MPa, min A1 A2 (ASTM D 380, except for molded hose test on full hose, for straight hose use 250 mm length) Hose I.D. 19 mm and smaller 1.9 1.7 Larger than 19 mm 1.5 1.2 3.12 CIRCUMFERENTIAL SWELL, max 10% (For 25 mm I.D. and larger) Test Method: Assemble a straight 250 mm length o
16、f hose in a test fixture and pressurize with a mixture consisting of 50% by volume coolant concentrate (see para 5.1) and 50% water at 23 +/- 2 C and 6.9 kPa pressure and measure the circumference of the hose. Increase the coolant temperature to 140 +/- 2 C and pressurize to 240 kPa. After 8 +/- 0.2
17、5 h re-measure the circumference. Calculate the percentage increase in diameter. 3.13 RESISTANCE TO KINKING (For 25 mm I.D. and smaller) Applies to formed and straight hoses containing straight lengths equal to or greater than the test length shown below. The hose sample shall be stabilized at room
18、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. Hose Test Center Hole Ball I.D., Length, Distance, Diameter Diameter, mm mm mm mm mm 25 and 450 8 x I.D
19、. O.D. 0.5 x I.D. nominal larger + 1.5 mm 18 to 24 350 8 x I.D. O.D. 0.5 x I.D. nominal + 1.5 mm 18 300 8 x I.D. O.D. 0.5 x I.D. nominal + 1.5 mm ENGINEERING MATERIAL SPECIFICATIONWSE-M96D14-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 6 3.14 COVER ADH
20、ESION, min (ASTM D 413, strip specimen, Type A) Tube to Ply 1.75 kN/m Cover to Ply 1.75 kN/m 3.15 FLEXIBILITY AT -40 C No cracks of tube (FLTM BN 102-01, except use mandrel 10X and cover nominal I.D., for 25mm I.D. and smaller) ID of 25 mm ID larger and smaller than 25 mm 3.16 COMPRESSION SET, % max
21、 62 56 (FLTM BP 108-06, 70 h at 70 +/- 1 C, except thickness change after 30 minutes) 3.17 IMPULSE STRENGTH Shall not burst, (For 25 mm I.D. and smaller) leak or show any visible defects 3.17.1 Test Sample A minimum of 4 samples of each hose design, selected at random from production, shall be teste
22、d to prove compliance with this requirement. All hoses 300 mm or less in total length shall be tested as received. Hoses longer than 300 mm may be cut to 300 mm for test purposes (test sample to include the most extreme bend if hose is formed). 3.17.2 Test Procedure The samples shall be subjected to
23、 a total of 200 internal pressure pulses at a rate of 6 to 8 pressure cycles/min with initial pressure between 0 and 276 kPa then increased over a period of 3 to 6 s to the peak pressure tabulated below for each hose size. A coolant mixture of 50/50 by volume of released coolant and water maintained
24、 at 100 +/- 5 C shall be circulated through the hose during test. After running the test for 200 complete cycles test for change in Burst and Cover adhesion. Hose I.D., Peak Pressure, 16 mm 1034 +/- 34 kPa 16.5 - 19 mm 758 +/- 34 kPa 19.5 - 25 mm 518 +/- 34 kPa 3.17.3 Burst Pressure Change, max -10%
25、 (Test according to 3.11) 3.17.4 Cover Adhesion Change, max -10% (Test according to 3.14) ENGINEERING MATERIAL SPECIFICATIONWSE-M96D14-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 6 3.18 WATER IMMERSION/STEAM TEST No cracks, tears, cuts or striations T
26、est Method: Immerse compression set buttons in a 50/50% v/v mixture of coolant and water for 70 h at 120 +/- 2 C. After immersion place the buttons in a steam bomb at 1.9 MPa for 90 h. Release the steam pressure in 30 s or less. Rapid depressurization is necessary for the formation of cracks and str
27、iations in the samples. Cool samples to 23 +/- 2 C, cut and compare the interior to that of an untested button. Any cracks, tears, cuts or striations at 10 X magnification are cause for failure. 3.19 HOSE IDENTIFICATION (Unless otherwise specified on engineering drawing) Hose shall be identified as
28、follows: a) Supplier identification symbol. b) Date of manufacture (week, year) and plant designation if supplier has more than one plant producing hoses to this specification. No space between letters. Mandatory on hoses longer than 80 mm only. c) Ford trademark on hoses longer than 150 mm. d) All
29、of the above printing shall be clearly and legibly printed letters of 4.5 - 6 mm in height and width. When hose is less than 80 mm long, width of letters may be reduced to 3 mm. The following code format is recommended, but not mandatory: G 2 01 Where: G = Plant Designation 2 = Year (single digit) 0
30、1 = Week (2-digit number) 3.20 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 reinforcement. The polymer stripe may be used with either
31、 above permanent identifications. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. ENGINEERING MATERIAL SPECIFICATIONWSE-M96D14-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technol
32、ogies, LLC Page 6 of 6 5.1 For information on currently approved engine coolants for use in this specification contact: Materials Laboratory 15/GM-DO1-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 Boulevard Dearborn, MI 48121, USA Materials Engineering Product Engineering Office Ford Motor Co. of Australia Ltd. Princes Highway, Norlane Victoria 3214, Australia
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