ImageVerifierCode 换一换
格式:PDF , 页数:2 ,大小:58.38KB ,
资源ID:509335      下载积分:10000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
注意:如需开发票,请勿充值!
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【http://www.mydoc123.com/d-509335.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: 微信登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(ASTM D1144-1999(2011) Standard Practice for Determining Strength Development of Adhesive Bonds《测定胶粘剂粘结强度提高的标准操作规程》.pdf)为本站会员(eveningprove235)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

ASTM D1144-1999(2011) Standard Practice for Determining Strength Development of Adhesive Bonds《测定胶粘剂粘结强度提高的标准操作规程》.pdf

1、Designation: D1144 99 (Reapproved 2011)Standard Practice forDetermining Strength Development of Adhesive Bonds1This standard is issued under the fixed designation D1144; 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 () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers the determination of the strengthdevelopment of adhesive bonds when tested on a standardspecimen u

3、nder specified conditions of preparation and testing.It is applicable to adhesives in liquid or paste form that requirecuring at specified conditions of time and temperature orspecific substrate preparation. It is intended primarily to beused with metal-to-metal adherends; however, plastics, woods,g

4、lass, or combinations of these may be substituted.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibi

5、lity 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:2D907 Terminology of AdhesivesD1002 Test Method for Apparent Shear Strength of Single-Lap-Joint Ad

6、hesively Bonded Metal Specimens by Ten-sion Loading (Metal-to-Metal)D1338 Practice for Working Life of Liquid or Paste Adhe-sives by Consistency and Bond Strength3. Terminology3.1 DefinitionsSeveral terms in this practice are defined inaccordance with Terminology D907.3.2 Definitions of Terms Specif

7、ic to This Standard:3.2.1 activator, or accelerator (surface), nan adhesivecuring agent that is applied to a bonding surface for the purposeof affecting or speeding, or both, the cure of an adhesive.3.2.2 fixture time (set time), nthe shortest time required byan adhesive to develop handling strength

8、 such that test speci-mens can be removed from fixtures, unclamped, or handledwithout stressing the bond, thereby affecting bond strength.3.2.3 handling strength, na low level of strength initiallyobtained by an adhesive that allows specimens to be handled,moved, or unclamped without causing disrupt

9、ion of the curingprocess or affecting bond strength.4. Significance and Use4.1 This practice contains suggested provisions for report-ing strength values. Any ASTM test method for determiningstrength properties of adhesive bonds may be used. Thispractice is not intended to determine the pot or worki

10、ng life oftwo-component epoxy of similar type adhesives. Refer toPractice D1338. It should be noted that there are adhesiveswhose testing requires special techniques and whose propertiesare difficult to reproduce from tester to tester. These variablesshould be kept in mind when analyzing the data ob

11、tained usingthis practice.5. Test Specimens5.1 It is suggested that lap-type shear specimens in accor-dance with Test Method D1002, be used. Other types of testspecimens may be used with agreement between the manufac-turer and the purchaser.6. Preparation of Test Specimens6.1 Prepare test specimens

12、in accordance with Test MethodD1002, or other applicable test method. Prepare the bondingsurface by a method mutually agreed upon between themanufacturer and the purchaser. Vapor phase degreasing, gritblasting, hand abrasion, or testing on oiled surfaces are some ofthe methods that are available. If

13、 a surface activator oraccelerator is used, apply it in accordance with the instructionsof the manufacturer. Use one- or two- surface activation asagreed upon between the manufacturer and the purchaser.Allow assembled specimens to cure at the temperature andperiod of time prescribed by the manufactu

14、rer to develop fullstrength. This is intended to determine if any post curing of theadhesive occurs that would cause a strength increase anddecrease. Bond strength variability could be caused by em-brittlement or a further hardening of the adhesive during thecure cycle.1This practice is under the ju

15、risdiction of ASTM Committee D14 on Adhesivesand is the direct responsibility of Subcommittee D14.10 on Working Properties.Current edition approved April 1, 2011. Published April 2011. Originallyapproved in 1952. Last previous edition approved in 2005 as D1144 99 (2005).DOI: 10.1520/D1144-99R11.2For

16、 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 Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700

17、, West Conshohocken, PA 19428-2959, United States.6.2 In addition, prepare assemblies for curing at the sametemperature and time intervals to determine fixture time and20, 50, and 80 % strength. If the adhesive is cured by heat, heatthe specimens at a predetermined rate such that a consistenttempera

18、ture rise is obtained. Differences in heating rates willnaturally occur between different types of test specimens due todifferent conductivities. Determine the temperature of theadhesive by means of a properly insulated thermocouple orcontact pyrometer placed in the geometric center of the bondarea.

19、 Bring the adhesive layer to the curing temperature aspromptly as possible and start the measurement of curing timewhen the adhesive has reached the curing temperature.6.3 After the curing treatment, allow the specimens to returnto room temperature by natural air convection. Preconditioningof the sp

20、ecimens prior to testing is permissible upon agreementbetween the purchaser and the manufacturer. Altering themanner in which the cured specimens are to be returned toroom temperature also is permissible, provided the method isagreeable to the purchaser and manufacturer. Roomtemperature-curing adhes

21、ives are allowed to cure for specifictime intervals at a temperature of 22 6 3C (72 6 6F). Curetime is measured from the initial assembly and clamping of testspecimens. If the test adhesive has an unusual cure mechanism,or does not adapt to conventional assembly and test methods,use a test procedure

22、 agreed upon between the manufacturer andthe purchaser. Develop this procedure to adhere as closely aspossible to those outlined in this practice.7. Procedure for Determining Fixture Time (Set Time)7.1 Prepare test specimens as outlined in Section 6. Apply aspecified amount of adhesive, as recommend

23、ed by the manu-facturer, to one surface. If a surface activator or accelerator isused, apply this to the other surface, or both, if specificallyrequired by the manufacturer or purchaser. Assemble speci-mens and clamp as recommended by the manufacturer.7.2 After a specified time, remove clamps and de

24、termine ifthe bond has developed handling strength. The initial test timeis longer than expected to develop handling strength. Insubsequent tests, shorten the intervals such that the minimumtime to develop handling strength eventually is determined.7.3 In testing parts for handling strength, load sp

25、ecimensaxially, torsionally, or in cleavage, to ensure that the blockingstrength of the adhesive is not mistaken for handling strength.Once the minimum time has been determined, repeat the test aminimum of three times to ensure its accuracy. For adhesivetypes where fixture time is irrelevant or too

26、short to test,exclude this test at the agreement of the manufacturer andpurchaser.7.4 Test the specimens as described in the selected appro-priate ASTM test method. Test heat-cured specimens immedi-ately after reaching room temperature. Room temperature-cured specimens are tested immediately after t

27、he specified curetime has elapsed.8. Report8.1 Report the following:8.1.1 Complete identification of the adhesive tested, includ-ing type, source, manufacturers code number, lot number,form, and activator,8.1.2 Complete identification of the adherend used, its type,thickness, method of cleaning, and

28、 preparation of surface priorto bonding,8.1.3 Standard test method used,8.1.4 Application and bonding conditions used in preparingthe specimens,8.1.5 Cure procedure used for specimens prior to testing,8.1.6 Fixturing time to the nearest standard unit of time(second, minute, hour),8.1.7 Fixture time

29、and cure speed data as actual test values,versus test time, to the nearest standard unit of time,8.1.8 Number of specimens tested, and8.1.9 Number of joints represented.9. Keywords9.1 accelerator; shear strength; tensile loading; working lifeASTM International takes no position respecting the validi

30、ty 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 the riskof infringement of such rights, are entirely their own responsibility.This standard is subjec

31、t 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 of this standard or for additional standardsand should be addressed to ASTM International Headquarte

32、rs. 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 shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard

33、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 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D1144 99 (2011)2

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1