1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Release/Revision1993 06 01 EP00E10258817000 Released B. LangeWP 3948-a Page 1 of 6 PERFORMANCE, SEMISTRUCTURAL ADHESIVE, POLYURETHANE, WSK-M11P54-AMETAL TO METAL, TWO COMPONENT1. SCOPEThis specification defines the
2、 performance requirements for a solvent free,polyurethane based, semistructural metal-to-metal adhesive.2. APPLICATIONThis specification was released originally to provide life time structuralbondin g for body components such as car cross beam (e-coated) to brackets(chromated steel, dirt and grease
3、free).3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101. A mutually acceptable Control Plan as describedtherein is required for material/source approval. Appropriatestatist ical tools must be used to analyze process/product data s
4、othat variation in the final product is continuously reduced.3.2 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on ma terial conditioned ina control led atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesa
5、me conditions unless otherwise specified.3.3 SYSTEMS COMPONENTS3.3.1 SubstratesChrom ated and/or e-coated steel as specified onengineering drawing.Note: If any other s teel, f.e. precoated with Zn,Zn/Ni, Duplex, galvanized, galvanealed, etc. getsrelevant for manufact uring, the adhesive has to betes
6、te d according to this specification on thesesubstrates.ENGINEERING MATERIAL SPECIFICATIONWSK-M11P54-AWP 3948-b Page 2 of 6 3.3.2 Preparation of SubstrateGrease free, clean unless otherwise specified.3.3.3 Adhesive, Two Component (see 5.1)Suitable to meet the requirements of this specif ication or a
7、sspecified on engineering drawing.3.3.4 Adhesive Application Temperature 23 +/- 2 C3.3.5 Adhesive Coating ThicknessesX = 1 mm, unless otherwise specified3.3.6 Curing Conditions 7 2 h at 23 +/- 2 C3.4 PERFORMANCE PROPERTIES3.4.1 Green Shear Strength, min 0.3 MPa(FLTM BV 154-03)Test Method:. Prep are
8、test specimens (body steel quality; see section3.3.1 of specification) according to section B, para 1 &2 of FLTM BV 154-03. Cure test specimens for 3 h at 23 +/- 2 C. Determine shear strength according to Method B of FLTM BV154-03.3.4.1 Hardness Durometer “A“(ISO 868, 3 s dwell)3.4.1.1 After Room Te
9、mperature Curing 90(48 h at 23 +/- 2 C)3.4.2 Shear Strength(FLTM BV 154-03)Test Method: Prepare s amples per 3.4.1 except cure for 48 hat 23 +/- 2 C and expose samples as shown below. Determineshear strength according to Method B.3.4.2.1 OriginalAt 23 +/- 2 C, min 9.0 MPa3.4.2.2 At 90 +/- 2 C*, min
10、1.5 MPa3.4.2.3 At - 40 +/- 2 C*, min 4.0 MPa*Samples shall be conditioned for 30 minutes a t thetest temperature before measurement.ENGINEERING MATERIAL SPECIFICATIONWSK-M11P54-AWP 3948-b Page 3 of 6 3.4.3 Aged Shear Strength, max loss3.4.3.1 After Heat Aging* 10 %(14 d at 90 +/- 2 C, 1 h at23 +/- 2
11、 C)3.4.3.2 After Humidity Aging* 10 %(14 d at 38 +/- 2 C and 98 +/-2 % R.H., 1 h at 23 +/- 2 C)3.4.3.3 After Environmental Cycling* 10 %*S pecimens are exposed to 8 cycles of thefollowing sequence and then stored for 1 h at 23+/- 2 C. After four cycles, specimens are to bestored a t 23 +/- 2 C for 7
12、2 h before runningremaining four cycles.One cycle consists of:16 h at 38 +/- 2 C and 98 +/- 2 % R.H.4 h at - 40 +/- 2 C4 h at 90 +/- 2 C3.4.2.3 After Cataplasma* 30 %Test Method:. Condition shear specimens at 23 +/- 2 C and 50+/- 5 % R.H. for 24 h. Test specimens to be wrapped with hydrophiliccotton
13、 batting and 5 each to be put into sealedcontainers of approximately 160 mL volume f illedwith 100 mL distil led water to provide constantconditions for the following storage:. 14 d at 70 +/- 2 C. 2 h at -20 +/- 2 C. 2 h at 23 +/- 2 C. Remove wet cotton and test shear strength w ithin2 h ours of the
14、 completion of the conditioningdescribed above.*Compared with measured value according to 3.4.2.1.ENGINEERING MATERIAL SPECIFICATIONWSK-M11P54-AWP 3948-b Page 4 of 6 3.4.5 Fatigue Resistance, Cycles x 1E6, minTest Method:. Prepare test samples per FLTM BV 154-03 except use 0.3 mmadhesive thickness.
15、Cure for 48 h at 23 +/- C. Deter mine the fatigue resistance in a dynamic tensiletesting machine with a s inusoidal cyclic axial load and afrequency of 30 Hz. Minimum tensile load to be 10 % of maximum tensile load. Maxi mum tensile load corresponds to 30 % of originalmeasured value according to 3.4
16、.2.1.3.4.5.1 Original 10 or failure inadhesion of paintsystem3.4.5.2 Environmental 10 or failure ini ntercoat adhesionof paint systemSpecimens are exposed to 8 cycles of the followingsequence and then stored for 1 h at 23 +/- 2 C.After four cycles, sp ecimens are to be stored 72 hat 23 +/- 2 C befor
17、e running remaining four cy cles.One cycle consists of:. 16 h at 38 +/- 2 C and 98 +/- 2 % R.H. 4 h at - 40 +/- 2 C. 4 h at 90 +/- 2 C3.4.6 Breaking Strength and Elongation(ISO R 527, specimens Type I, 4 mmadhesive thickness)3.4.6.1 OriginalAt 23 +/- 2 *, min 9 MPa(48 h curing)Elongation at Break, m
18、in 45 %Elastic Modulus, min 30 MPa3.4.6.2 At 90 +/- 2 C *, min 1.5 MPaElongation at Break, min 18 %Elastic Modulus, min 7 MPaENGINEERING MATERIAL SPECIFICATIONWSK-M11P54-AWP 3948-b Page 5 of 6 3.4.6.3 At - 40 +/- 2 C *, min 20 MPaElongation at Break, min 3.0 %Elastic Modulus, min 450 MPa* Sa mples s
19、hall be conditioned for 30 minutes atthe test temperature before measurement.3.4.7 Aged Breaking Strength and ElongationAfter aging loss based on values measured per 3. 4.6, Originaltests above.3.4.7.1 At 23 +/- 2 C, max loss 30 %Elongation at Break, min 12 %Elastic Modulus, min 250 MPa3.4.6.2 At 90
20、 +/- 2 C *, max loss 85 %Elongation at Break, min 12 %Elastic Modulus, min 10 MPa3.4.6.3 At - 40 +/- 2 C *, max loss 10 %Elongation at Break, min 2.5 %Elastic Modulus, min 750 MPa*Samples shall be conditioned for 30 minutes a t thetest temperature before measurement.Test Method: Environmental Cyclin
21、gSpecimens are exposed to 8 cycles of the followingsequence and then stored for 1 h at 23 +/- 2 C.After four cycles, sp ecimens are to be stored 72 hat 23 +/- 2 C before running remaining four cy cles.One cycle consists of :16 h at 38 +/- 2 C and 98 +/- 2 % R.H.4 h at -40 +/- 2 C4 h at 90 +/- 2 C3.4
22、.8 Glass Transition Point, min 31 C(ISO R537, torsion test value: Lambda max,cure test specimens for 48 h at 23 +/- 2 C)ENGINEERING MATERIAL SPECIFICATIONWSK-M11P54-AWP 3948-b Page 6 of 6 3.5 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristi
23、cs to the 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 spec
24、ificationrequir 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 requ
25、est.Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS-M99P9999-A1.4. APPROVAL OF MATERIALSThis specification is intended to define the performance and/or propertiesof fin
26、ished parts or systems of combined materials. An EngineeringMaterial Approved Source listin g is not applicable for this specification.Produc t Engineering materials referenced in this document and/or theaffected engineering drawing, which require prior Engine ering approval, aresh own in the Engineering Material Approved Source List under thespecification cited.5. GENERAL INFORMATIONThe in formation below is provided for clarification in meeting therequirements of these specifications.5.1 Affected Material Specifications:WSK-M11P54-A1 relates to ESK-M2G365-A1 and ESK-M2G365-A2.
