1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2015 02 03 N Status No replacement named L. Sinclair, NA 2007 07 10 Activated A. Musse Copyright 2015, Ford Global Technologies, LLC Page 1 of 6 METAL ADHESIVE, POLYACRYLIC ESTER, CLINCH FLANGE WSS-M2G573-A BRAZIL ONLY NOT TO BE USED FOR NEW
2、DESIGN 1. SCOPE The material defined by this specification is a solvent free, precuring, spot weldable and heat curing polyacrylic ester base metal adhesive. 2. APPLICATION This material was re-activated for use in Brazil, for use in other plants contact region materials engineering activity. This m
3、aterial was originally released to bond zincrometal coated panels, e.g., clinch flange engine hood. The material is applied to oiled surfaces. Prior to the release for a particular application and in addition to the requirements specified herein, full evaluation with the assembled part must be ensur
4、ed by the affected Component Engineering activity. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. Note: For all strength and adhesion tests use zincrometal as well as normal body steel panels. 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERI
5、ALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 COLOR Black or as specified on Engineering drawing. 3.3 SOLIDS, min 98% (FLTM BV 150-10) 3.4 ASH, max 30% (FLTM BV 150-10) 3.5 DENSITY at 20 C, max 1.5 g/cm3 (A
6、STM D 1475) 3.6 VISCOSITY at 20 C (FLTM BV 103-01, line pressure 2.8 bar, nozzle diameter 2 mm) 3.6.1 As Received 25 - 75 s ENGINEERING MATERIAL SPECIFICATION WSS-M2G573-A Copyright 2015, Ford Global Technologies, LLC Page 2 of 6 3.6.2 After Ageing, max 80 s (72 h at 30 +/- 2 C) Note: Final approval
7、 of a specific viscosity of material for production shipments shall be made by affected Manufacturing Division. In all cases, however, the viscosity shall be within the limits specified above and shall meet all requirements of this specification (Control Sample Laboratory Report). 3.7 HEAT RESISTANC
8、E AFTER AGEING No chipping, no loss (FLTM BV 153-02, Method D, test of adhesion panel preparation in accordance with FLTM BZ 150-11, “Normal Grade“) 3.8 FLOW RATE No Flow (FLTM BV 153-01, Method A, except oiled panels according to FLTM BZ 150-11, “Normal Grade“, bead 6 mm). 3.9 FLAMMABILITY AND CORR
9、OSION No burning, (FLTM BV 159-02, Method A. Immediately no corrosion after welding separate the welded parts using a test fixture according to FLTM BV 159-01, Fig. 4. Examine after 48 h at room temperature) 3.10 RESISTANCE TO CORROSION The material shall protect the test panel from corrosion. Test
10、Method: 1) Test panel preparation according to FLTM BV 159-02, Method A, except bead size of 4 mm and weld spot distance of 40 mm. 2) Condition for 10 minutes at room temperature and expose in a mechanical convection oven at a metal temperature of 165 +/- 2 C for 3 minutes. The warm up time to reach
11、 this temperature shall not exceed 10 minutes. 3) After 2 hours at room temperature wash, phosphate and electrocoat test assemblies under normal production conditions. 4) Expose separate test assemblies according to FLTM BV 150-05, Table 1: a) minimum curing cycle b) maximum curing cycle 5) After 24
12、 hours at room temperature expose test assemblies to a salt spray fog according to ASTM B 117 for 240 hours (anodic EC-coating) and 480 hours (cathodic EC-coating). 6) Separate welded assemblies using a test fixture according to FLTM BV 159-01, Fig. 4 and examine. ENGINEERING MATERIAL SPECIFICATION
13、WSS-M2G573-A Copyright 2015, Ford Global Technologies, LLC Page 3 of 6 3.11 WASH RESISTANCE No wash-off of sealer; no deformation of sealer surface 1) Apply two ribbons of material under test 250 x 30 x 1 mm and 50 mm apart from each other to a 300 x 300 mm oiled panel, prepared in accordance with F
14、LTM BZ 150-11, “Normal Grade“. 2) Condition for 10 minutes at room temperature and expose in a mechanical convection oven at a metal of 165 +/- 2 C for 3 minutes. The warm-up time to reach this temperature shall not exceed 10 minutes. 3) After conditioning for 2 hours at room temperature expose test
15、 assembly in horizontal position to a water jet of 50 +/- 5 C using a nozzle No. 1/2 GG-25 Full Jet (Spraying System Co.) and a pressure of 200 kN/m2. The distance between the nozzle and test material shall be 300 mm. The water jet shall be applied between the beads for 1 minute. 3.12 WASH AND PHOSP
16、HATING SOLUTION RESISTANCE No evidence of dissolution of material or lifting from panel; no cracking or chipping. Test Method: 1) Apply 250 x 40 x 0.1 - 0.2 mm ribbons of material under test to 250 x 60 mm oiled test panels, prepared according to FLTM BZ 150-11, “Normal Grade“. 2) Condition for 10 m
17、inutes at room temperature and expose in a mechanical convection oven at a metal temperature of 165 +/- 2 C for 3 minutes. The warm-up time to reach this temperature shall not exceed 10 minutes. 3) After conditioning for 2 hours at room temperature expose test assemblies one after another in each wa
18、sh and phosphating solution of the affected plant where this material is to be used and maintain for 15 minutes at 60 +/- 1 C. 4) Proceed as outlined under clause 4 and 5 of Method A of FLTM BV 153-04 except test at room temperature. 3.13 WETTING (FLTM BV 153-08, Method A) The enamel shall form a co
19、ntinuous film over the sealer. No discoloration or staining permitted. 3.14 SHEAR STRENGTH AFTER PRECURING, min 250 N/cm2 (Cohesion failure preferred but not mandatory) Test Method: 1) Prepare test specimens in accordance with FLTM BV 154-03, Section I, coating thickness 0.3 mm. Further treatment ac
20、cording to clause 3.9, Section 2. 2) Determine shear strength (FLTM BV 154-03, Method B) after conditioning for one hour at room temperature. ENGINEERING MATERIAL SPECIFICATION WSS-M2G573-A Copyright 2015, Ford Global Technologies, LLC Page 4 of 6 3.15 SHEAR STRENGTH, ORIGINAL (Cohesion failure pref
21、erred but not mandatory) 3.15.1 At Room Temperature, min 350 N/cm2 3.15.2 At 90 +/- 2 C, min 70 N/cm2 3.15.3 At -30 +/- 1 C, min 600 N/cm2 Test Method: FLTM BV 154-03, Method B. Preparation of test specimens according to Section 1. Coating thickness 0.3 mm. Minimum and maximum heat curing cycle acco
22、rding to FLTM BV 150-05, Table 1. 3.16 SHEAR STRENGTH AFTER AGEING (Cohesion failure preferred but not mandatory) 3.16.1 At Room Temperature No loss based on original value 3.16.2 At 90 +/- 2 C No loss based on original value 3.16.3 At -30 +/- 1 C No loss based on original value Test Method: 1) Spec
23、imen preparation according to clause 3.14, test method, except maximum heat curing cycle only. 2) After 2 hours at room temperature age test specimens 14 days at 80 +/- 2 C. 3) After 24 hours at room temperature test the specimens according to FLTM BV 154-03, Method B. 3.17 SHEAR STRENGTH AFTER TEMP
24、ERATURE CYCLING TEST (Cohesion failure preferred but not mandatory) 3.17.1 At Room Temperature See 3.15.1 3.17.2 At 90 +/- 2 C See 3.15.2 3.17.3 At -30 +/- 1 C See 3.15.3 Test Method: 1) Specimen preparation according to clause 3.16, test method, Section 1. ENGINEERING MATERIAL SPECIFICATION WSS-M2G
25、573-A Copyright 2015, Ford Global Technologies, LLC Page 5 of 6 2) Condition test specimens for 24 hours at room temperature and subject eight times to the following cycles: 3 h at 80 +/- 2 C 1 h at 23 +/- 2 C 3 h at -30 +/- 1 C 1 h at 23 +/- 2 C 16 h at 38 +/- 2 C and 98 +/- 2% relative humidity 3)
26、 After 24 hours at room temperature test the specimens according to FLTM BV 154-03, Method B. 3.18 PEEL STRENGTH (Cohesion Failure) (FLTM BV 154-03, Method C) 3.18.1 At Room Temperature, min 180 N/cm 3.18.2 At 90 +/- 2 C, min 70 N/cm 3.18.3 At -30 +/- 1 C, min 180 N/cm Test Method: Preparation of te
27、st specimens according to Section 1. Coating thickness 0.3 mm. Minimum and maximum heat curing cycle according to FLTM-BV 150-05, Table 1. 3.19 VOLUME EXPANSION None Test Method: 1) Determine the volume V1 of clean 150 x 25 mm test panels. 2) Apply test strips 6 mm in diameter and 100 mm in length (
28、see sketch in FLTM BV 153-07) and determine volume V2. 3) After 10 minutes conditioning at room temperature cure test assembly according to FLTM BV 150-05, Table 1, Minimum Curing Cycle, Phase 1. 4) After cooling to room temperature determine volume V3. Note: Determine volumes by water displacement.
29、 The volume increase in % of the original volume shall be determined as follows: V3 - V2 % Volume Expansion = - x 100 V2 - V1 Where V1 = Volume of test panel V2 = Volume of test panel and sealing strip V3 = Volume of test panel and sealing strip after cure ENGINEERING MATERIAL SPECIFICATION WSS-M2G5
30、73-A Copyright 2015, Ford Global Technologies, LLC Page 6 of 6 3.20 ABRASIVES The material shall contain no abrasive agents. Test Method: Dilute a one gram sample of material under test with three gram toluene and mix thoroughly. Rub a portion of the diluted material 20 times between two pieces of f
31、lat, clean plate glass. The appearance of scratches on the glass plates shall be considered failure. 3.21 HEALTH HAZARDS AND ODORS The material must not contain any ingredients (matter) which, under normal production conditions, could lead to health hazards such as skin rash or irritation (dermatiti
32、s), irritation of the mucous membranes, difficulties in breathing etc. The material shall be free from objectionable odors both as received and after storage. 3.22 QUALITY The material shall be of uniform quality, free from foreign material and properties detrimental to normal production use. It sha
33、ll not cause excessive soiling of handlers in normal production use. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 STORAGE STABILITY (From date of receipt at Ford Motor Company) Minimum of 3 mont
34、hs when stored between 5 C and 28 C (the material shall be stored away from all sources of direct heat or sunlight). 4.2 OIL ABSORPTION This material can only absorb a low quantity of oil. The oil absorption depends upon the material thickness. For parts subject to higher strains in the body in white stage than normal, a precure will become necessary.
