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    ASTM F1179-1988(2007) Standard Practice for Inspection Procedure for Use of Anaerobic Thread Locking Compounds with Studs《螺栓螺纹锁定厌氧复合物使用的检验程序》.pdf

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    ASTM F1179-1988(2007) Standard Practice for Inspection Procedure for Use of Anaerobic Thread Locking Compounds with Studs《螺栓螺纹锁定厌氧复合物使用的检验程序》.pdf

    1、Designation: F 1179 88 (Reapproved 2007)An American National StandardStandard Practice forInspection Procedure for Use of Anaerobic Thread LockingCompounds with Studs1This standard is issued under the fixed designation F 1179; the number immediately following the designation indicates the year ofori

    2、ginal adoption 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 practice covers an inspection procedure to ensurethat st

    3、uds installed with an anaerobic thread locking compoundhave achieved the necessary backout resistance.1.2 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

    4、alth practices and determine the applica-bility of regulatory limitations prior to use.2. General Requirements2.1 Application of anaerobic compounds, used as a methodfor locking threaded fasteners, shall be in accordance with theanaerobic compound manufacturers recommendations.2.2 Responsibility for

    5、 InspectionUnless otherwise speci-fied in the contract, the contractor is responsible for theperformance of all inspection requirements as specified herein.2.3 Government Inspection SystemFor U.S. Navy pro-curements, each organization shall maintain an inspectionsystem to ensure that all of the requ

    6、irements of this practice arebeing met wherever anaerobic compounds are used for lockingthreaded fasteners.3. Stud Installation Verification3.1 Verification of fastener locking effectiveness of anaero-bic compounds, after the manufacturers recommended settingperiod, shall be in accordance with the f

    7、ollowing:3.1.1 Witness installation and removal through a distance ofthree threads beyond the locking element of a previouslyunused nut (annular plastic ring locking element type) on twostuds in each joint bolt circle containing more than three studs.3.1.1.1 Locate selected studs 180 apart or as clo

    8、se theretoas possible.3.1.1.2 Examine only one stud in applications having threestuds or less.3.1.2 Accept the assembly if no turning motion of the studsis observed during nut installation or removal. Also, accept theassembly if a slight initial turning motion (up to14 turn) of thestuds is observed,

    9、 and no further turning motion of the studs isobserved, during nut installation or removal. A small initialturning of the set stud represents a breaking or powdering ofthe locking compound which actually increases resistance toany further turning motion.3.1.2.1 Do not restrain studs from turning dur

    10、ing the test byany method other than the locking compound in the set end ofthe stud.3.1.3 Reject each stud assembly if the requirements foracceptance of 3.1.2 are not met. If one assembly is rejected, allstuds in that bolt circle shall be similarly checked (see 3.1.1and 3.1.2). Remove and clean all

    11、rejected studs in accordancewith the manufacturers recommended procedures, reinstall,and reinspect.3.1.3.1 Reinspection shall consist of selecting two of thereinstalled studs, if four or more studs require reinstallation, orone stud if less than four studs require reinstallation, andperforming proce

    12、dures 3.1.1, 3.1.2, and 3.1.3.3.1.4 If assembly is accepted after step 3.1.2, each stud inthe bolt circle shall be permanently marked (scribe or electro-etched) on the exposed end with a line oriented radially inrelation to the center of the bolt circle.4. Joint Assembly Inspection4.1 Joint assembly

    13、 shall be completed and final torqueapplied:4.1.1 Note the position of the orientation line (see 3.1.4)onthe studs. If the orientation line position indicates that studshave not turned more than14 turn, accept the joint assembly.4.1.2 If the orientation line position indicates one or morestuds have

    14、turned more than14 turn, reject the joint, disas-semble the joint, and remove and clean the studs which failedin accordance with the manufacturers recommended proce-dures, reinstall, and reinspect.4.1.3 Reinspection of the stud shall consist of procedures3.1.1, 3.1.2, and 3.1.3.4.1.4 Reinspection of

    15、 the joint assembly shall consist ofprocedures 4.1.1 and 4.1.2.4.1.5 Repeat the removal and reinstallation procedure untilthe orientation line shows that studs have not turned more than14 turn during the final torquing.1This practice is under the jurisdiction of ASTM Committee F25 on Ships andMarine

    16、 Technology and is the direct responsibility of Subcommittee F25.07 onGeneral Requirements.Current edition approved May 1, 2007. Published June 2007. Originallyapproved in 1988. Last previous edition approved in 2002 as F 1179 - 88(2002).1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C

    17、700, West Conshohocken, PA 19428-2959, United States.5. Keywords5.1 anaerobic compound; inspection; locking threadedfastenerASTM 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 exp

    18、ressly 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 revis

    19、ed, 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

    20、 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 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).F 1179 88 (2007)2


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