1、Designation: D 3167 03a (Reapproved 2004)Standard Test Method forFloating Roller Peel Resistance of Adhesives1This standard is issued under the fixed designation D 3167; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of l
2、ast revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.INTRODUCTIONThe purpose of this test method is to provide for the determination of the metal-to-metal peelstrength of adhesives by
3、 a method that will provide good reproducibility at low-, as well as athighstrength levels and yet allow for a simple method of test specimen preparation and testing.The accuracy of the results of strength tests of adhesive bonds will depend on the conditions underwhich the bonding process is carrie
4、d out. Unless otherwise agreed upon between the manufacturer andthe purchaser, the bonding conditions shall be prescribed by the manufacturer of the adhesive. In orderto ensure that complete information is available to the individual conducting the tests, themanufacturer of the adhesive shall furnis
5、h numerical values and other specific information for each ofthe following variables:(1) Procedure for preparation of the surfaces prior to application of the adhesive, the cleaning anddrying of metal surfaces, and special surface treatments such as sanding, which are not specificallylimited by the
6、pertinent test method.(2) Complete mixing directions for the adhesive.(3) Conditions for application of the adhesive, including the rate of spread or thickness of film,number of coats to be applied whether to be applied to one or both surfaces, and the conditions ofdrying where more than one coat is
7、 required.(4) Assembly conditions before application of pressure, including the room temperature and lengthof time.(5) Curing conditions, including the amount of pressure to be applied, the length of time underpressure, and the temperature of the assembly when under pressure. It should be stated whe
8、ther thistemperature is that of the glue line, or of the atmosphere at which the assembly is to be maintained.(6) Conditioning procedure before testing, unless a standard procedure is specified, including thelength of time, temperature, and relative humidity.A range may be prescribed for any variabl
9、e by the manufacturer of the adhesive, if it can be assumedby the test operator that any arbitrarily chosen value within such a range or any combination of suchvalues for several variables will be acceptable to both the manufacturer and the purchaser of theadhesive.1. Scope1.1 This test method cover
10、s the determination of the relativepeel resistance of adhesive bonds between one rigid adherendand one flexible adherend when tested under specified condi-tions of preparation and testing.1.2 A variation in thickness of the adherends will generallyinfluence the test values. For this reason, the thic
11、kness of thesheets used to make the test specimens shall be specified in thematerial specification. When no thickness is specified, theflexible adherend shall be 0.63 mm (0.025 in.) thick and therigid adherend shall be 1.63 mm (0.064 in.) thick.1.3 The values stated in SI units are to be regarded as
12、 thestandard. The values given in parentheses are for informationonly.1This test method is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.80 on MetalBonding Adhesives.Current edition approved April 1, 2004. Published April 2004. Original
13、lyapproved in 1973. Last previous edition approved in 2003 as D 3167 03a.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is
14、theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B 209 Specification for Aluminum and Aluminum-AlloySheet and PlateD 907 Terminology
15、of AdhesivesD 1781 Test Method for Climbing Drum Peel for AdhesivesE 4 Practices for Force Verification of Testing Machines3. Terminology3.1 DefinitionsMany of the terms used in this test methodare defined in Terminology D 907.4. Summary of Test Method4.1 This test method consists of testing laminat
16、ed or bondedadherends, where one adherend is made to be rigid and theother adherend is made to be flexible, by peeling of the flexibleadherend from the rigid adherend at a controlled angle of peelusing the test fixture shown in Fig. 1.5. Significance and Use5.1 Use this test method for acceptance an
17、d process controltesting. This test method may be used as an alternative to TestMethod D 1781 when that facility is not available. This testmethod is considered more severe since the angle of peel isgreater.6. Apparatus6.1 Testing Machine, conforming to the requirements ofPractices E 4. Select a tes
18、ting machine that is autographic withchart capability, that reads and records in millimetres (inches)of separation as one coordinate and applied load as the othercoordinate, the applied load accurate to within 61 %. Addi-tional capabilities of the machine are a crosshead rate of 152mm/min (6 in./min
19、), with self-aligning grips to hold thespecimen, and where the breaking load of the specimens fallsbetween 15 and 85 % of the full-scale machine capacity. Thegrips need to engage the outer 25.4 mm (1 in.) of the flexibleadherend firmly and when the load is applied, the direction ofthe applied pull n
20、eeds to be through the center line of the gripassembly.6.2 Attach a fixture as shown in Fig. 1 to one of the testingmachine cross arms and ensure that the 1-in. diameter rollers ofthe test fixture roll freely.7. Sample Preparation7.1 Laminated test panels (see Fig. 2) consist of twoadherends properl
21、y prepared and bonded together in accor-dance with the adhesive manufacturers recommendations.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document
22、 Summary page onthe ASTM website.FIG. 1 Roller Drum Peel Test FixtureD 3167 03a (2004)27.2 Unless otherwise specified, use clad aluminum alloyconforming to the specification for aluminum-alloy sheet andplate (Specification B 209) Alloy 2024-T3.7.3 Cut the bonded panels into 12.7-mm (0.5-in.) wide te
23、stspecimens (see Fig. 2) by a means that is not deleterious to thebond. The use of edge members depends upon the desire tomeasure peel strengths in this area. The method of cutting testspecimens is controlled by adherend and adhesive composi-tions and the accuracy desired. Shearing, milling, and ban
24、d-saws can all be used successfully. Bend the unbonded end ofthe flexible adherend, perpendicular to the rigid adherend, forclamping in the grip of the testing machine. Select twospecimens for each temperature tested from each of threebonded panels.NOTE 1Direct comparison of different adhesives may
25、be made onlywhen specimen construction and test conditions are identical.NOTE 2Within the limitations imposed by 7.3, other specimen widthsmay be used, provided the test machine grip and peel test fixtures are ofample width to apply the load uniformly across the width of theadherends.NOTE 3Direct co
26、mparison of different adhesives may be made onlywhen the angle of peel is identical. The operator must ascertain that theflexible adherend is bending over the mandrel and not at some irregularangle.8. Test Method8.1 Insert the test specimen into the peel test fixture asshown in Fig. 1, with the unbo
27、nded end of the flexibleadherend gripped in the test machine jaw. Peel the specimen at152-mm/min (6-in./min) bond separation rate by applying theload at a constant head speed of 152 mm/min. If the backupplate bends or is distorted during the test, it is recommendedthat the specimen be redesigned wit
28、h a backup member stiffenough to ensure even peel.8.2 During the peel test, make an autographic recording ofload versus head movement (load versus distance peeled).8.3 Record the load over at least a 7.6-mm (3-in.) length ofthe bond line, disregarding the first 2.54 mm (1 in.) of peel.9. Calculation
29、9.1 Determine from the autographic curve, or at least 76.2mm (3 in.) of peeling (disregarding the first 25.4 mm (1 in.),the average peeling load in pounds-force per inch (or kilone-wtons per metre) of the specimen width required to separate theadherends. It is preferred that the average load be dete
30、rminedfrom the curve by means of a planimeter.NOTE 4In case a planimeter is not used, the average may becalculated as the average of load readings taken at fixed increments ofcrosshead motion. For example, the load may be recorded at each12.7-mm (12-in.) interval of crosshead motion (discarding the
31、first 25.4mm (1 in.) until at least six readings have been attained.10. Report10.1 Report the following information:10.1.1 Complete identification of the adhesive tested includ-ing type, source, manufacturers code number, batch or lotnumber, form, etc.10.1.2 Complete identification of adherends used
32、, includingmaterial thickness, surface preparation, and orientation.10.1.3 Description of bonding process, including method ofapplication of adhesive, glueline thickness, drying or precuringconditions (where applicable), curing time, temperature, andpressure.10.1.4 The average thickness of adhesive
33、layer after forma-tion of the joint shall be reported within 0.0127 mm (0.0005in.). The method of obtaining the thickness of adhesive layershall be described including procedure, location of measure-ments, and range of measurements.10.1.5 Complete description of the test specimen, includingdimension
34、s and construction of the test specimen, conditionsused for cutting individual test specimens, number of testpanels represented, and number of individual test specimens.10.1.6 Conditioning procedure prior to testing.10.1.7 Testing temperature.10.1.8 Type of test machine and crosshead separation rate
35、used.NOTE 1A 38.1 to 74.2-mm (1.5 to 3.0-in.) shim can be used to facilitate the start of peel.FIG. 2 Test Panel and Test SpecimenD 3167 03a (2004)310.1.9 Method of recording load and determining averageload.10.1.10 Average, maximum, and minimum peeling loadvalues for each individual specimen.10.1.1
36、1 Average peel strength in pounds-force per inch (orkilonewtons per metre) of width for each combination ofmaterials and constructions under test.10.1.12 Type of failure, that is, cohesive failure within theadhesive or adherend or adhesion to the adherend, or combi-nation thereof, for each individua
37、l specimen.11. Precision and Bias11.1 A precision and bias for this test is being determinedand will be available by September 2007.12. Keywords12.1 adhesives; assemblies; bonds; laminates; metal; peel;rollerASTM International takes no position respecting the validity of any patent rights asserted i
38、n connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the r
39、esponsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive car
40、eful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM Internation
41、al, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 3167 03a (2004)4
