欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ASTM C783-1985(2010)e1 Standard Practice for Core Sampling of Graphite Electrodes《石墨电极芯取样的标准实施规程》.pdf

    • 资源ID:508361       资源大小:63.97KB        全文页数:2页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    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)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、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。

    ASTM C783-1985(2010)e1 Standard Practice for Core Sampling of Graphite Electrodes《石墨电极芯取样的标准实施规程》.pdf

    1、Designation: C783 85 (Reapproved 2010)1An American National StandardStandard Practice forCore Sampling of Graphite Electrodes1This standard is issued under the fixed designation C783; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,

    2、 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.1NOTEUpdated units of measurement throughout the standard editorially in May 2010.1. Scope1.1 This practice was devel

    3、oped for electric-arc furnacegraphite electrodes, and covers a procedure and equipment forobtaining core samples from electrodes in a manner that doesnot destroy the electrode nor prevent its subsequent use asoriginally intended. However, the minimum electrode diam-eter, for which extraction of a co

    4、re sample using this practicedoes not influence subsequent use, is influenced by the par-ticular application and must be determined by the user.Graphite electrodes for use in electric arc furnaces are usuallysolid cylinders of graphite with threaded sockets machined ineach end.1.2 The values stated

    5、in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.3 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 he

    6、alth practices and determine the applica-bility of regulatory limitations prior to use.NOTE 1The followingASTM standards are noted as sources of usefulinformation: Test Methods C559, C611, C651, C747, C1025, and C1039.2. Referenced Documents2.1 ASTM Standards:2C559 Test Method for Bulk Density by Ph

    7、ysical Measure-ments of Manufactured Carbon and Graphite ArticlesC611 Test Method for Electrical Resistivity of Manufac-tured Carbon and Graphite Articles at Room TemperatureC651 Test Method for Flexural Strength of ManufacturedCarbon and Graphite Articles Using Four-Point Loading atRoom Temperature

    8、C747 Test Method for Moduli of Elasticity and Fundamen-tal Frequencies of Carbon and Graphite Materials by SonicResonanceC1025 Test Method for Modulus of Rupture in Bending ofElectrode GraphiteC1039 Test Methods for Apparent Porosity, Apparent Spe-cific Gravity, and Bulk Density of Graphite Electrod

    9、es3. Terminology3.1 Definitions:3.1.1 core sample the portion of graphite obtained froman electrode by use of a sampling device such as described in4.1.3.1.2 test specimenan article prepared from a coresample.4. Significance and Use4.1 Core sampling is an acceptable way of obtaining a testspecimen w

    10、ithout destroying the usefulness of the electrode.4.1.1 Test specimens obtained by this practice can be usedby producers and users of graphite electrodes for the purpose ofconducting the tests in Note 1 to obtain comparative physicalproperties.4.2 This practice may not provide a test specimen of the

    11、appropriate size (with respect to particle size/sample dimensionratios) to allow the determination of absolute property values.5. Apparatus5.1 Core Drill Bit, similar to that shown in Fig. 1, driven bysuitable equipment.6. ProcedureNOTE 2When core sampling a machined electrode, use caution toprevent

    12、 damage to the socket threads and remove all dust from the threadswhen the coring operation is finished.6.1 The core sample shall be taken from either end of theelectrode as close to the center of the diameter as feasible.1This practice is under the jurisdiction of ASTM Committee D02 on PetroleumPro

    13、ducts and Lubricants and is the direct responsibility of Subcommittee D02.F0 onManufactured Carbon and Graphite Products.Current edition approved May 1, 2010. Published May 2010. Originallyapproved in 1974. Last previous edition approved in 2005 as C783 85 (2005).DOI: 10.1520/C0783-85R10E01.2For ref

    14、erenced 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, We

    15、st Conshohocken, PA 19428-2959, United States.6.2 The core drill bit dimensions shall be such that a coresample with a minimum diameter of 50 mm and a minimumfinished length of 191 mm can be obtained.6.3 Place the core drill bit firmly against the graphite.6.4 Take care to maintain the bit level and

    16、 true. Do not stopuntil the bit is embedded its full length.6.5 To remove the bit, pull and twist it by hand. Do notremove the bit while it is rotating.6.6 To remove the core sample, insert a wedge between itand the electrode until the core sample snaps.7. Keywords7.1 carbon; core; electrodes; graph

    17、ite; sample; testspecimensASTM 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 the riskof infrin

    18、gement 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 of this standard

    19、 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 shouldmake your views

    20、 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 obtained by contacting

    21、 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/).FIG. 1 Typical Core Drill BitC783 85 (2010)12


    注意事项

    本文(ASTM C783-1985(2010)e1 Standard Practice for Core Sampling of Graphite Electrodes《石墨电极芯取样的标准实施规程》.pdf)为本站会员(deputyduring120)主动上传,麦多课文档分享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档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    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 

    收起
    展开