ImageVerifierCode 换一换
格式:PDF , 页数:3 ,大小:60.72KB ,
资源ID:513924      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-513924.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 D3003-2001(2016) Standard Test Method for Pressure Mottling and Blocking Resistance of Organic Coatings on Metal Substrates《金属衬底表面有机涂层耐压力斑迹和抗粘连性标准试验方法》.pdf)为本站会员(testyield361)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 D3003-2001(2016) Standard Test Method for Pressure Mottling and Blocking Resistance of Organic Coatings on Metal Substrates《金属衬底表面有机涂层耐压力斑迹和抗粘连性标准试验方法》.pdf

1、Designation: D3003 01 (Reapproved 2016)Standard Test Method forPressure Mottling and Blocking Resistance of OrganicCoatings on Metal Substrates1This standard is issued under the fixed designation D3003; the number immediately following the designation indicates the year oforiginal adoption or, in th

2、e case of revision, the year of last 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 test method covers determination of the pressuremottling and sticking, or blockin

3、g resistance of organic coat-ings applied to coil-coated or factory-coated metal prior tofabrication.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, i

4、f 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 use.2. Terminology2.1 Definitions of Terms Specific to This Standard:2.1.1 blocking or sticki

5、ng, nthe condition wherein coatedsurfaces adhere to each other.2.1.2 pressure mottling, nfilm distortion or uneven patterngiving a change of gloss and nonuniform appearance. It isusually caused by pressures within a painted coil or stackedpainted sheets or other painted products.3. Summary of Test M

6、ethod3.1 The coated metal is cut into suitably sized panels. Astack of these panels is then subjected to a specified pressureand temperature for a specified time to permit any pressuremottling and sticking or blocking to develop. The applied heatof the test apparatus is turned off and, after cooling

7、, thespecimens are examined for any signs of sticking (or blocking),and mottling. The results are rated on the 0 to 10 scale and maybe used in accepting or rejecting the coating in accordance withstandards established between the purchaser and the seller.4. Apparatus24.1 Suitable Hydraulic or Mechan

8、ical Press or Vise may beused. The equipment shall be capable of producing the requiredtest pressure in kilopascals (or pounds-force per square inch)and be equipped with a suitable device for measuring the forceapplied.5. Test Specimens and Conditions5.1 At least four, and preferably six, flat panel

9、s shall be cutfrom the coated stock, the age of which shall be within thelimits agreed upon between the purchaser and the seller.5.2 Panels should be at least 100 by 70 mm (4 by 2.5 in.) toprovide an adequate area for assessing the results. Where theequipment does not provide adequate pressure, smal

10、ler panelsmay be used. The minimum recommended size is 50 by 50 mm(2 by 2 in.).5.3 Use only flat panels. If necessary, file the edges smoothto ensure maximum contact between the surfaces. When theequipment permits, panels larger than the pressure plates maybe used, thus eliminating any effect from u

11、neven edges. Withthis method, the kilopascals (or pounds of force per squareinch) is calculated using only the panel area within the pressureplates.5.4 The film thickness of the coating under test shall be asspecified or agreed upon between the purchaser and the seller.5.5 The coated stock shall be

12、tested under the conditions ofpressure, temperature, and time mutually agreed upon betweenthe purchaser and the seller. Pressures ranging from 750 to2400 kPa (110 to 350 psi), temperatures from 43 to 60C (110to 140F), and times of 2 to 16 h have been used.5.6 In the absence of agreed or specified te

13、st conditions, apressure of 750 6 35 kPa (110 6 5 psi), a temperature of 436 1.5C (110 6 3F), and a time of 16 h shall be used.5.7 The total force applied is measured by a suitable gageand the pounds of force per kilopascals (or square inch) is1This test method is under the jurisdiction of ASTM Comm

14、ittee D01 on Paintand Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.53 on Coil Coated Metal.Current edition approved Dec. 1, 2016. Published December 2016. Originallyapproved in 1971. Last previous edition approved in 2012 as D3003 01 (2012).DOI: 1

15、0.1520/D3003-01R16.2Suitable equipment includes presses and drill press vises modified for use witha torque wrench if agreed upon between purchaser and seller (Hensley, W. L.,“Pressure Mottling Test,”Journal of Paint Technology, Vol 40, No. 517, February1968, p. 54A).Copyright ASTM International, 10

16、0 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and R

17、ecommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1calculated by dividing the force by the area in square inches ofone side of one panel.6. Procedure6.1 Stack the panels face to back as used in production withboth face and back coatings applied. Limit

18、the number ofpanels in the test to the quantity that can be heated rapidly toand maintained at the correct panel temperature throughout thetest.6.2 For presses having heating units, place the test panels inthe press and bring the heating platens in contact but with lightpressure. Turn on the heating

19、 unit, and heat the panels to therequired test temperature. When this temperature is reached,apply the required pressure and maintain it for the specifiedtime (6.4).6.3 Where the apparatus does not have built-in heatingunits, preheat the mechanical press or vise. Place the panels inthe press at room

20、 temperature with very light contact and heatthe unit (press and panels) in an oven to the required tempera-ture. Then apply the proper pressure and return the unit to theoven for the specified time.6.4 Record the time only after the specified temperature andpressure are reached. Check the temperatu

21、re and pressure atintervals during the test.6.5 At the end of the specified time, turn off the heat andallow the panels to cool to room temperature under pressurebefore removal and separation.6.6 After removal from the press, grade the panels sepa-rately for both sticking (or blocking) and mottling

22、in accor-dance with Table 1. In assessing the results, ignore effects dueto sharp or uneven edges.6.7 Maintain panels that are to be reassessed for a mottlinggrade in accordance with Table 1 after a 24-h recovery periodat 24 6 3C (75 6 5F).6.8 For both properties assign each coating a grade that ist

23、he arithmetic mean of all panels tested.7. Report7.1 Report the following information for each coating:7.1.1 Equipment used,7.1.2 Number of panels tested,7.1.3 Pressure (or force applied and surface area of testcoupons),7.1.4 Temperature and heating process (built-in or oven),7.1.5 Time,7.1.6 Grade

24、for sticking or blocking,7.1.7 Grade for mottling,7.1.8 Age of specimen,7.1.9 Size of panels tested,7.1.10 Dry film thickness of coupon, and7.1.11 Evaluation time (for example, immediate, 24 h, etc).8. Precision and Bias8.1 PrecisionIn an interlaboratory test of this test method,two operators in eac

25、h of seven laboratories tested two differentcoatings, subjected to two treatments (pressure, temperature,and duration) and rated them for sticking (S), and pressuremottling (PM). The within-laboratory and between laboratorypooled standard deviations were found to be as follows:Pooled Standard Deviat

26、ionsRatingParameterWithin-LaboratoryBetweenLaboratoryS 0.42 1.10PM 0.38 1.06Average 0.40 1.08Based on these results the following criteria should be usedin judging the acceptability of results at the 95 % confidencelevel.8.1.1 RepeatabilityTwo results, each the mean of the twosets of panels, obtaine

27、d by the same operator should beconsidered suspect if they differ by more than 1.2 units.8.1.2 ReproducibilityTwo results, each the mean of twosets of panels, obtained by operators in different laboratoriesshould be considered suspect if they differ by more than 3.7units.TABLE 1 ClassificationNOTE 1

28、Intermediate grades are permissible to distinguish small differences.NOTE 2Reasonable force is defined as that which can be exerted by the fingers only, using the fingernails as the only prying instrument.NOTE 3The transfer of components of one coating onto or into another coating is also known as o

29、ffsetting or pickoff.Grade Sticking or Blocking Grade Mottling10 Panels fall apartno sticking. 10 no mottling immediately after separation.8 Slight tackiness or panels pull apart easily. 8 no mottling after 24-h separation.6 Panels pull apart with effort. No flexing or prying is required toaid separ

30、ation.6 light permanent mottling after 24-h separation.4 Panels pull apart using reasonable force. Flexing may be re-quired (Note 2).4 heavy permanent mottling after 24-h separation.2 Panels require prying apart with a spatula or similar instrument. 2 light pickoff or transfer of one or both coating

31、s (Note 3).0 Panels block together so they cannot be separated with aspatula or similar instrument, without using extreme force.0 one or both coatings show heavy pickoff down to the metal orbasecoat; or block together (Note 3).D3003 01 (2016)28.2 BiasThe procedure in this test method has no biasbeca

32、use only the value of pressure mottling is defined in thistest method.9. Keywords9.1 blocking resistance; pressure mottlingASTM 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 expr

33、essly 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 responsible technical committee and must be reviewed every five years andif not revise

34、d, 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 careful consideration at a meeting of theresponsible technical committee, which you may

35、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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United State

36、s. 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 Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 01 (2016)3

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