1、Designation: D 3658 01 (Reapproved 2008)Standard Test Method forDetermining the Torque Strength of Ultraviolet (UV) Light-Cured Glass/Metal Adhesive Joints1This standard is issued under the fixed designation D 3658; the number immediately following the designation indicates the year oforiginal adopt
2、ion or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the simplistic comparison ofstrengths of glass/m
3、etal joints when the adhesive is cured byultraviolet (UV) radiation and standard specimens are used andtested under specified conditions of preparation, radiation, andload.1.2 This test method involves torque loading UV-bondedhexagonal metal blocks to glass plates.1.3 This test method may be used to
4、 obtain comparativetorque strength-to-failure data for other bonded joint systems,radiation cured or not.1.4 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not
5、considered standard.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is 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
6、 use.2. Referenced Documents2.1 ASTM Standards:2A 109/A 109M Specification for Steel, Strip, Carbon (0.25Maximum Percent), Cold-RolledA 167 Specification for Stainless and Heat-ResistingChromium-Nickel Steel Plate, Sheet, and StripB 36/B 36M Specification for Brass Plate, Sheet, Strip, AndRolled Bar
7、B 152/B 152M Specification for Copper Sheet, Strip, Plate,and Rolled BarB 209 Specification for Aluminum and Aluminum-AlloySheet and PlateB 265 Specification for Titanium and Titanium Alloy Strip,Sheet, and PlateD 907 Terminology of AdhesivesD 1002 Test Method for Apparent Shear Strength of Single-L
8、ap-Joint Adhesively Bonded Metal Specimens by Ten-sion Loading (Metal-to-Metal)3. Terminology3.1 DefinitionsMany of the terms in this test method aredefined in Terminology D 907.4. Significance and Use4.1 This test method provides reasonably accurate informa-tion with regard to the ability of UV cur
9、ing adhesives towithstand torsional shearing forces. It may be used to deter-mine the effect of environment on torsional shear strength.5. Apparatus5.1 Test system consisting of apparatus capable of transfer-ring a uniform and continuous torque to the bonded hexagonalblock (schematically shown in Fi
10、g. 1), and a safety shield orother safety device to prevent injury from possible shatteringglass.5.2 An accurate and reliable means of recording load tofailure, that is, x-y or strip chart recorder, should also be part ofthe test system.6. Test Specimens6.1 Recommended specimens are as shown in Fig.
11、 2.6.2 Selection of the test metal for hexagonal blocks is at thediscretion of the user; however, the following grades arerecommended (see Test Method D 1002):Metal SpecificationBrass B 36/B 36M, Alloy 8Copper B 152/B 152M, Type AAluminum B 209, Alloy 2024, T3 TemperSteel A 109/A 109M, Grade 2Corros
12、ion-resisting steel A 167, Type 302Titanium B 2656.3 Hexagonal blocks may be reused after testing by bond-ing the opposite end of the block or by cleaning the originalbonded end by sanding or grinding and taking care to ensurethat ends are smooth and parallel.1This test method is under the jurisdict
13、ion of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.80 on MetalBonding Adhesives.Current edition approved April 1, 2008. Published April 2008. Originallyapproved in 1978. Last previous edition approved in 2001 as D 3658 01.2For referenced ASTM standards, visit
14、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 Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959
15、, United States.6.4 Selection of the glass plate is at the discretion of theuser. Standard12-in. (13-mm) thick pressed plate glass isrecommended.7. Preparation of Test Specimens7.1 The assembly and cure of the specimen is recommendedas shown in Fig. 3.7.2 Cut glass plates 3 by 3 in. (76 by 76 mm) sq
16、uare to fitthe holding fixture without lateral movement.7.3 A recommended cleaning procedure is to soak the glassplates in a dilute detergent solution for 2 to 3 min, followed bylight scrubbing with an absorbent cleaning tissue.3Thenthoroughly rinse the glass plates with distilled or deionizedwater
17、and air dry.7.4 Metal hexagonal blocks,12 in. (13 mm) high, may beprepared by light sanding with 400 grade wet or dry emerypaper, followed by solvent wiping, such as 1,1,1-trichloro-ethane.NOTE 1Preparation of adherends are recommended only. Users mayemploy methods conducive to actual practice. Repo
18、rted data should bequalified as to the method of surface preparation.7.5 Apply adhesive to the hexagonal button in sufficientquantity to cause wetting of the entire surface when clampingpressure is applied by means of two 10-lb (0.9-kg) springclamps.8. Procedure8.1 The level of the radiation and tim
19、e of exposure shouldbe within the tolerances specified for the cure.8.2 Measure the intensity of the radiation with a suitablemeter sensitive to the radiation used. Place the meter in aposition related to the bond line.3Kimwipes, available from Kimberly-Clark Corp., 128 N. Lake, Neenah, Wisc.54956,
20、or equivalent, have been found satisfactory for this purpose.Details1Base plate2Upright3Mounting bracket4Lebow socket wrench sensor Model 2133-1035Pillow blockBoston #PPB106ExtensionArmstrong #4-105 A71-in. (25.4-mm) hexagonal socketArmstrong #A4-6328UV specimen (see Fig. 2)9Adjustable side guides (
21、Fig. 2)10Neoprene pad (bonded to Detail 9) (Fig. 2)Dimensionsin. mmA 0.50 13B 3.75 95C 0.62 16D 5.50 140E 0.50 13F 6.75 170G 6.25 160H 2.62 66FIG. 1 UV Testing ApparatusD 3658 01 (2008)28.3 If the material is subject to post curing, it must remainat specified conditions of temperature, humidity, etc
22、, prior totesting.8.4 Fully cured specimens may be subjected to environmen-tal exposure such as weathering, humidity, temperature, orcombinations thereof, prior to testing.8.5 Test the bonded specimen as follows:8.5.1 Place the specimen in the holding fixture, ensuringthat no lateral movement is evi
23、dent.8.5.2 Mechanically apply a torque on the hex nut assemblyor by means of a constant drive loader at a rate of 0.5 rpm(suggested) until failure occurs.8.5.3 Record the load at failure and the nature and amountof the failure (cohesive in adhesive or glass or adhesive atmetal/adhesive or glass/adhe
24、sive interface). Express all failureloads in lbfin. (or Nm).9. Report9.1 Report the following information:9.1.1 Complete identification of the adhesive tested, includ-ing type, source, manufacturers code numbers, form, etc.9.1.2 Complete identification of the metal used, its thick-ness, and the meth
25、od of cleaning and preparing its surfacesprior to bonding.9.1.3 Complete identification of the glass used, as in 9.1.2.9.1.4 Application and bonding conditions used in preparingspecimens, including the type intensity (watts per steradian),and exposure time of the radiation used.Details1Glass plate2H
26、exagonal metal blockDimensions Dimensionsin. mm in.2mm2A 3.00 76 Bond0.866 559B 1.50 38 Area FC 0.47 12D 1.00 25E 0.50 13FIG. 2 UV Specimen ConfigurationD 3658 01 (2008)39.1.5 Conditioning procedure prior to testing.9.1.6 Number of specimens tested.9.1.7 Maximum, minimum, and average values for load
27、 atfailure.9.1.8 Standard deviation and coefficient of variation for thespecimens tested.9.1.9 Average thickness of the adhesive layer after cure ofthe joint. Subsequent measurements should be obtained if thespecimens are exposed to environmental conditioning.9.1.10 The nature of the failure, includ
28、ing the averageestimated percentages of failure; that is, adhesives-cohesive,glass-cohesive, interface failure (glass/adhesive or metal/adhesive).10. Precision and Bias10.1 Precision and bias for this test method are beingdetermined and will be available by April 2005.11. Keywords11.1 adhesive; glas
29、s; light-cured; metal; torque; ultravioletASTM International takes no position respecting the validity of any patent rights asserted in 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 t
30、he riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision
31、of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful 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 shoul
32、dmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 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 obtain
33、ed 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).Details1UV specimen2Clamp3Neoprene cushion4Clamp support (glass or metal)5Bond surface (Ref.)FIG. 3 Adhesive Joint PreparationD 3658 01 (2008)4
