1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1996 05 13 Revised Added WSS-M96D30-A2 B. Hennessey1990 02 12 C10059230 Released B. HennesseyWP 3948-a Page 1 of 5 HOSE, ETHYLENE/ACRYLIC (AEM) RUBBER REINFORCED, WSD-M96D30-ALOW PRESSURE, ENGINE OIL RESISTANT, 7
2、5 IRHDHOSE, ETHYLENE/ACRYLIC (AEM) RUBBER REINFORCED, WSS-M96D30-A2LOW PRESSURE, ENGINE OIL RESISTANT, 65 IRHD1. SCOPEThe material described by this specification is a hose of Ethylene/AcrylicRubber, (75 IRHD-A, 65 IRHD-A2) internally reinforced with a single ply ofbraided textile and resistant to e
3、ngine oils.2. APPLICATIONThe ma terial was released originally for use as crankcase drain hoses andturbo c harger air hoses where resistance to long term exposure to engineoils up to 150 EC a nd air temperatures up to 150 EC are required. The hoseis also capable of withstanding short term oil temper
4、atures up to 175 ECand maintaining flexibility down to - 40 EC.3. REQUIREMENTS3.1 QUALITY SYSTEM REQUIREMENTSMaterial suppliers and part producers must conform to Quality SystemRequirements, QS-9000. Material specification r equirements are to beused fo r initial qualification of materials. A Contro
5、l Plan forong oing production verification is required. This plan must bereviewed and approved b y the relevant Ford Materials activity and/orFor d Supplier Technical Assistance (STA) prior to production partssubmission. Appropriate statistical tools must be used to analyzepr ocess/product data and
6、assure consistent processing of thematerials.Part producers using this material in their products, must use Fordapproved materials and must conform to a process control plan whichhas been approved by STA and/or the relevant Materials Activity.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFor
7、d Motor Company, at its option, may conduct infrared and/ortherma l analysis of material/parts supplied to this specification.The IR spectra and thermograms established for i nitial approval shallconst itute the reference standard and shall be kept on file at thedesignated material laboratory. All s
8、amples sha ll produce IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.ENGINEERING MATERIAL SPECIFICATIONWSD-M96D30-A WSS-M96D30-A2WP 3948-b Page 2 of 5 3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on ma terial
9、 conditioned ina c ontrolled atmosphere of 23 +/- 2 EC and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesame conditions unless otherwise specified.3.4 HOSE CONSTRUCTIONThe hose shall consist of an Ethylene/Acrylic rubber inner tube andout er cover with a si
10、ngle layer of suitable braided reinforcingtextile. The hose will usually be shaped.3.5 MATERIAL TESTINGWhe never possible, all test specimens shall be die-cut from thefinishe d parts. When not feasible, specimens cut from molded testsheets manufactured from the same material and with equivalent cure
11、to molded parts are recommended. The test sheets shall have thefollowing dimensions:150 x 150 mm, min x 2.0 +/- 0.2 mm3.6 ORIGINAL PROPERTIES: TUBE AND COVER MATERIALA A23.6.1 Hardness, International 70 - 80 60 - 70(ISO 48/ASTM D 1415)3.6.2 Hardness, Durometer A 70 - 80 60 - 70(ISO 868/ASTM D 2240,
12、instantaneous,plied-up specimens. Hand helddurometers shall not be used.)3.6.3 Tensile Strength, MPa, min 10 12(ISO 37/ASTM D 412, Die C)3.6.4 Elongation at break, %, min 200 275(Test method according to 3.6.3)3.6.5 Modulus at 100 % Elongation, MPa 5.0 2.5(Test method according to 3.6.3) to 8.5 to 5
13、.03.6.6 Tear Strength, kN/m, min 40 15(ISO 34, Method B, Procedure (a)/ASTM D 624, Die C)3.6.7 Compression Set, %, max 50 25(ISO 815/ASTM D 395 Method B,except 25 % compression, plied-upspecimens, 70 h at 150 +/- 2 EC)3.6.8 Ozone Resistance, max Rating 0 0(FLTM BP 101-01)ENGINEERING MATERIAL SPECIFI
14、CATIONWSD-M96D30-A WSS-M96D30-A2WP 3948-b Page 3 of 5 3.7 HEAT AGED(ISO 188/ASTM D 573, 150 +/- 50 airchanges/h, 1000 h at 150 +/-2 EC)Hardness Change, max + 15Tensile Strength Change, max - 20 %Elongation at Break Change, max - 60 %Visual EvaluationNo surface tackiness or cracks when folded flat ag
15、ainst itself.3.8 IMMERSION IN CURRENTLY RELEASEDPRODUCTION ENGINE OIL(ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 EC,see para 5.1)Hardness Change, max - 30Tensile Strength Change, max - 30 %Elongation at Break Change, max - 35 %Volume Change, max + 60 %3.9 IMMERSION IN CURRENTLY RELEASEDPRODUCTION ENGI
16、NE OIL(ISO 1817/ASTM D 471, 168 h at 175 +/- 2 EC,see para 5.1)Hardness Change, max - 25Tensile Strength Change, max - 20 %Elongation at Break Change, max - 20 %Volume Change, max + 30 %3.10 FINISHED PART REQUIREMENTS3.10.1 Burst Pressure, min(ASTM D 380)25 mm ID 1.0 MPa3.10.2 Flexibility at - 40 EC
17、 No breaks or cracks (FLTM BN 102-01, except Burst test per 3.10.1use mandrel 10 x nominal I.D.)ENGINEERING MATERIAL SPECIFICATIONWSD-M96D30-A WSS-M96D30-A2WP 3948-b Page 4 of 5 3.11 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the
18、 material upon which approval wasoriginally granted.Pri or to making any change in the properties, composition,constr uction, color, processing or labeling of the materialorig inally approved under this specification, whether or not suchchange s affect the materials ability to meet the specification
19、requir ements, the Supplier shall notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the Materials Engineeringactivity. Test data, t est samples and a new code identification areto be submitted with the request.Subst
20、ance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WS S-M99P9999-A1, unlessa different suffix (e.g., A2 or A3) is specified on the engineeringdocument for the application.4. APPROV
21、AL OF MATERIALSMat erials defined by this specification must have prior approval by theresp onsible Materials Engineering activity. Suppliers desiring approvalof thei r materials shall first obtain an expression of interest from theaffec ted Purchasing, Design and Materials Engineering activity. Upo
22、nrequest, the Supplier shall submit to the affected Materials Engineeringactivity its own laboratory rep ort to the specification (test results, notnominal values), the material designation and code number, and testspecim ens for Ford evaluation. Upon approval, the material will be addedto the Engin
23、eering Material Approved Source List.5. GENERAL INFORMATIONThe information below is provided for clarificat ion and assistance inmeeting the requirements to the specification.5.1 Fo r information on currently approved engine oils for use in thisspecification contact:Materials Laboratory 13/100 Fluid
24、s Materials SectionResearch and Engineering Centre Coolants/GreasesFord Motor Company Ltd Engine EngineeringLaindon, Basildon P.O. Box 2053Essex SS15 6EE, England 21500 Oakwood BoulevardDearborn, MI 48121, USAMaterials EngineeringProduct Engineering OfficeFord Motor Co. of Australia LtdPrinces Highway, NorlaneVictoria 3214, AustraliaENGINEERING MATERIAL SPECIFICATIONWSD-M96D30-A WSS-M96D30-A2WP 3948-b Page 5 of 5 5.2 Recycling CodeAEM
