1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 08 25 Revised Format Change Only 2002 10 31 Revised Revised 3.10 & Updated B. Hennessey 1988 07 19 Released SM/ER 6230 TC B. Hennessey Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 5 HOSE, REINFO
2、RCED SILICONE (MQ) RUBBER, HIGH WSD-M96D23-A1 TEMPERATURE, COOLANT RESISTANT 1. SCOPE The material defined by this specification is a long life, high temperature, coolant resistant, moderate pressure silicone hose. 2. APPLICATION The specification was released originally for a hose connection betwee
3、n the radiator and engine block where a hose cover temperature up to 230 C may be encountered and good resistance to compressive creep under securing clamps is required. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Compa
4、nys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CONSTRUCTION The hose shall consist of a high temperature resistant silicone elastomeric tube and cover, reinforced with one or more plies of braided, knitted, spiral, or woven aramid fabric. 3.3 MATERIAL TESTING 3.3.1 Preparat
5、ion of Test Specimens Whenever possible, all test specimens shall be die-cut from 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 followi
6、ng dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm Tube Cover 3.4 ORIGINAL PROPERTIES 3.4.1 Hardness, International 55 - 70 50 - 70 (ISO 48) 3.4.2 Tensile Strength, MPa, 7.0 7.0 min (ISO 37 Type 1) 3.4.3 Elongation, % min 275 275 (ISO 37 Type 1) ENGINEERING MATERIAL SPECIFICATION WSD-M96D23-A1 Printe
7、d copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 5 3.4.4 Modulus at 100% Elongation, MPa, min 1.5 - 5.0 1.5 - 5.0 (ISO 37 Type 1) 3.5 HEAT AGED (ISO 188, 150 +/- 50 air changes/h 168 h at 230 +/- 2 C) 3.5.1 Hardness Change, max +25 +25 3.5.2 Tensile Strength -65 -65
8、Change, % max 3.5.3 Elongation Change, % max -65 -65 3.5.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.6 HEAT AGED (ISO 188, 150 +/- 50 air changes/h, 1000 h at 150 +/- 2 C) 3.6.1 Hardness Change, max +20 +20 3.6.2 Tensile Strength Change, % max -25 -25 3.6.3
9、Elongation Change, % max -50 -50 3.6.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.7 IMMERSION IN CURRENTLY RELEASED ENGINE COOLANT, TUBE ONLY (FLTM BO 130-01, 1000 h at 125 +/- 2 C, see Para. 4.1) 3.7.1 Hardness Change, max +/- 15 3.7.2 Tensile Strength Chang
10、e, max -40% 3.7.3 Elongation Change, max -30% 3.7.4 Volume Change, max +10% No surface tackiness or cracks when folded flat against itself. 3.8 OZONE RESISTANCE, COVER, max Rating 0 (FLTM BP 101-01, Procedure A or B) ENGINEERING MATERIAL SPECIFICATION WSD-M96D23-A1 Printed copies are uncontrolled Co
11、pyright 2006, Ford Global Technologies, LLC Page 3 of 5 3.9 BURST PRESSURE (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 3.10 COMPRESSION SET, max 50% (SAE J1638, 70 h at 120 +/- 2 C) 3.11 ADHESION, min (ASTM D
12、 413, strip specimen, type A) Cover to Tube 1.7 kN/m 3.12 FLEXIBILITY AT -40 C No cracking of (FLTM BN 102-01, except use tube or cover mandrel 10x nominal I.D.) 3.13 IMPULSE STRENGTH Shall not burst, (For 25 mm I.D. and smaller) leak or show any visible defects 3.13.1 Test Sample A minimum of 4 sam
13、ples of each hose design, selected at random from production, shall be tested 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
14、 if hose is formed). 3.13.2 Test Procedure The samples shall be subjected to 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. S
15、pecified coolant mixture (see Para. 4.1) maintained at 100 +/- 5 C shall be circulated through the hose during test. Hose I.D. Peak Pressure 25 300 8 x I.D. O.D. + 1.5 mm 0.5 x I.D. nominal 3.16 HOSE IDENTIFICATION (Unless otherwise specified on engineering drawing) Hose shall be identified as follo
16、ws: a) Supplier identification code. b) Date of manufacture (week, year) and plant designation if supplier has more then one plant producing hoses to this specification. No space between letters. Mandatory on hoses longer then 80 mm only. c) Ford trademark on hoses longer then 150 mm. d) All of the
17、above printing shall be clearly and legibly printed letters of 4.5 - 6 mm in height and width. When hose is less then 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) 01 = Wee
18、k (2-digit number) 3.17 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 above
19、permanent identifications. ENGINEERING MATERIAL SPECIFICATION WSD-M96D23-A1 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this sp
20、ecification. 4.1 Use 49.75% Coolant Concentrate, 49.75% Distilled Water, 0.5% Hot-Test Stand Coolant Anti-Corrosion Additive for Ford European Automotive Operations use only. Otherwise, use 50% Coolant Concentrate +50% Distilled Water for all other Ford Operations, or as stated on the Engineering Dr
21、awing. For information on currently approved engine coolants for use in this specification contact: Materials Technology Center GB-15/GM Fluids Materials Section Dunton Technical Center Coolants/Greases Ford Motor Company Ltd Engine Engineering Laindon, Basildon PO 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
