2022年磁粉检验程序 .pdf

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1、名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页，共 11 页 -OFFSHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROCEDURE PAGE 2 OF 10 CONTENT 目 录1.0 SCOPE范围.32.0 REFERENCE STANDARD 参考标准.33.0 PERSONNEL QUALIFICATION 人员资质.34.0 EXTENT OF NDT NDT 范围.35.0 TIMING OF NDT NDT检验时间.46.0 TESTING PROCEDURE 检

2、测程序.47.0 REPORT FORM 报告格式.10名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页，共 11 页 -OFFSHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROCEDURE PAGE 3 OF 10 1.0 SCOPE 范围This procedure covers the methods,techniques and acceptance criteria for Magnetic Particle Inspection of LUFENG 13-2 OILFIE

3、LD DEVELOPMENT PHASE PROJECT.本检验程序包含了LUFENG 13-2 OILFIELD DEVELOPMENT（PHSAE-2）项目磁粉检验的检验方法、检验工艺和验收标准。2.0 REFERENCE STANDARD 参考标准?Owners Specification?AWS D1.1-2006 Structural Welding code Steel 钢结构焊接规范?ASME V 2007?ASMEVIII 2007?ASTM E 709 3.0 PERSONNEL QUALIFICATION 人员资质Personnel performing the NDT t

4、esting shall be qualified and certified to NDT Level II in accordance with the requirements of SNT-TC-1A recommended practice and approved by NDT Level-III(COOEC)or equivalent qualifications approved by OWNER.所有从事无损检验工作的人员均应按照SNT-TC-1A 推荐作法或等同标准取得II 级资质证书，并由 COOEC NDT III 级人员批准或经过业主的批准。4.0 EXTENT OF

5、 NDT NDT 范围Extent of NDT to be carried out as per fabrication and welding specification,extent of non-destructive examination and weld NDT DWG.NDT 范围应按照业主规格书无损检验范围的要求以及焊缝NDT 图纸的要求进行。名师资料总结-精品资料欢迎下载-名师精心整理-第 3 页，共 11 页 -OFFSHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROC

6、EDURE PAGE 4 OF 10 5.0 TIMING OF NDT NDT检验时间Welds in tubular on T,K or Y connections whose wall thickness is not smaller than 32mm and all through thickness locations,due to the possibility of delayed hydrogen cracking,shall be nondestructively examined no sooner than 48 hours after welding,unless o

7、therwise authorized by COMPANY.Other welds in High Strength Material(yield and above),shall be nondestructively examined no sooner than 24 hours after welding,unless otherwise authorized by COMPANY.Padeye welds shall be nondestructively examined no sooner than 48 hours after welding.除非业主另有批准，对于管状T,K

8、,Y型连接管壁厚度大于32mm 时，由于存在延时裂纹的可能性，无损检测应该在焊接完成后至少48小时后进行。除非业主另有批准，其他高强度材料（大于等于345MPa）焊缝的无损检验应该在焊接完成后至少 24小时后进行。MT Reports shall be available within48 hours after inspection and before the subassembly proceeds to final assembly.MT 检验报告应在检验完成后48 小时内完成，并且在下一步组对至最终装配前完成。6.0 TESTING PROCEDURE 检测程序6.1 MAGNETI

9、C PARTICLE TESTING磁粉检验MT of welds shall be in accordance with ASME VIII division 1 and division 2,ASTM E 709,Article 7 of FABRICATION AND WELDING SPECIFICATION.焊缝磁粉检验按业主规格书要求即ASME VIII division 1 and division 2,ASTM E 709,第 7 章进行。MT EQUIPMENT 设备A.C.Electromagnetic Yokes 交流磁轭Yokes(220V/50Hz Alternati

10、ng Current)used shall be the articulated leg type.磁轭（200 伏/50 赫兹，交流）应当是铰接式的；CALIBRATION 校准名师资料总结-精品资料欢迎下载-名师精心整理-第 4 页，共 11 页 -OFFSHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROCEDURE PAGE 5 OF 10 Yokes shall develop a minimum lifting force 4.5kg at maximum leg spread.T

11、he lifting force shall be checked as per code requirement.磁轭磁力应根据提升力进行校准。每一台交流磁轭在最大磁极间距时应至少具备 4.5Kg 的提升力。应当按照规范的要求校核提升力。ALTERNATING CURRENT YOKE TYPE 交流磁轭MODULE 型号DA400S B310PD XDYY-N-1BS MANUFACTURER 制造商PARKER RESEARCH CORP.PARKER RESEARCH CORP.TIEDE AMERICA EXAMINATION MEDIUM WET MAGNETIC PARTICLE

12、 MATERIALS 湿式磁粉检测用材料1)The magnetic particles used for obtaining patterns of discontinuities shall be non-toxic and shall provide adequate contrast with the surface being examined.磁粉应当是无毒的，并应与被检工件表面有较高的对比度。2)The magnetic particles used for obtaining patterns of discontinuities shall be capable of exh

13、ibiting good visual contrast against the white backing medium.磁粉应能与白色反差剂有很高的外观对比度。3)White background contrast shall be used with black magnetic ink particles and shall not corrode or otherwise adversely affect the integrity of the steel components being examined.白色反差剂应与黑色磁粉同时使用，不能腐蚀或对被检工件产生有害影响。MAGN

14、ETIC PARTICLE TYPE-(WET)磁悬液类型（湿式）MODEL 型号760#900#COLOR 颜色 BLACK 黑色 BLACK 黑色名师资料总结-精品资料欢迎下载-名师精心整理-第 5 页，共 11 页 -OFFSHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROCEDURE PAGE 6 OF 10 MANUFACTURER 制造商YINGKOU MAGNETIK MATERIAL FACTORY,OR SHANGHAI DETECTOR FACTORY营口磁粉材料厂或上海

15、探测设备厂PROCEDURE 程序The yoke technique shall be used in accordance with ASME V,Article 7.按 ASME V 第 7 章要求的要求，使用电磁轭法技术法。The A.C.Yoke and the permanent magnet method shall be used to induce the required magnetic fields.应当使用交流电磁轭法或永久磁铁进行检验，以产生所需要的磁场。TYPE OF WELD焊缝的类型The butt and fillet weld of structure 结

16、构的对接和角焊缝TEMPERATURE DURING TEST 试验时的温度Wet method magnetic particle examination shall not be performed if the surface temperature of the part exceeds 57 C.MT should be done with.当被检工件表面的温度超过57 摄氏度时，不能使用湿式磁粉进行检验。磁粉检验应当按照下列进行：1）Black oil magnetic-suspension,MANUFACTURER-（Model of Spray-Can is MT-BO.黑色油

17、性磁悬液，制造商：MARKTEC，型号：喷罐型MT-BO 2）Black water magnetic-suspension,MANUFACTURER-MARKTEC,Model of Spray-Can is MT-BW.黑色水性磁悬液，制造商：MARKTEC，型号：喷罐型MT-BW 3）Mixed ethanol and water base magnetic ink,MANUFACTURER-MARKTEC Model of Magnetic-Paste is W-1,The proportion of ethanol and water is 1:10.名师资料总结-精品资料欢迎下载-

18、名师精心整理-第 6 页，共 11 页 -OFFSHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROCEDURE PAGE 7 OF 10 乙醇和水混合磁悬液，制造商：MARKTEC，型号：磁膏 W-1。乙醇和水的比例为1：10。Remark：To determining magnetic-suspension concentration through the use of D1966Pear-shape-Centrifuge,（refers to ASTM E709）For fluores

19、cent magneticsuspension,the scale is 0.05 ml and the scale is 1 ml for non-fluorescent magneticsuspension.To start the pump first and mix it at least 30min,then take 100ml into the Centrifuge till magnetic-suspension concentration,the bottom magnetic-suspension is to show the concentration of the ma

20、gnetic-suspension.The concentration volume from 1.2 to 2.4ml can be used for non-fluorescent magnetic particle.说明：采用 D1966 梨形离心沉淀管测定磁悬液浓度（参照ASTM E709）。对于荧光磁悬液，沉淀管的刻度值应为0.05 毫升，对于非荧光磁悬液，沉淀管的刻度值应为1 毫升。首先启动泵，搅拌磁悬液至少30 分钟，搅拌均匀后，取100 毫升注入沉淀管中使其沉淀。沉淀在管底的溶剂即表示管中磁悬液的浓度。非荧光粉地沉淀容积值为1.2-2.4 毫升即可使用。MAGNETIC FIE

21、LD STRENGTH AT INSPECTION LOCATION DURING CONTINUOUS METHOD 连续法检验时的磁场强度yokes shall develop a minimum lifting force 4.5kg at inspection spacing.在检验期间，磁轭应当至少能提升4.5KG 力。SURFACE PREPARATION 表面处理1)The surface finish of the welds or the weld grooves shall be such that proper interpretation can be accompli

22、shed.The surface to be examined may be examined in the as-welded or as-rolled condition.However,surface irregularities that could mask indications of unacceptable discontinuities shall be removed by grinding,or other Client approved methods.应当首先完成被检焊缝或坡口的外观检查，被检表面可以是焊后或热轧之后的状态。表面的不规则状态不得影响检测结果的正确性和完

23、整性，否则应做适当的修理。如打磨、使用清洁剂、有机溶剂、渗透清洗剂等。Prior to the examination,the surface to be examined,including 25mm on each side of the weld or weld groove,shall be dry and free of any dirt,grease,lint,scale,welding flux and spatter,oil or other extraneous matter that could interfere with the examination.名师资料总结-精

24、品资料欢迎下载-名师精心整理-第 7 页，共 11 页 -OFFSHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROCEDURE PAGE 8 OF 10 MT 检查之前，被检表面包括焊缝或坡口两侧各25mm，应当是干燥的，并且没有污垢、油脂、铁屑，焊渣、飞溅、油污或其他外来的可能影响检测结果的物质。APPLICATION OF EXAMINATION MEDIUM 检验介质的应用1)Adequate contrast with the background of the surface be

25、ing examined shall be made using white spray intensifying contrast agent.检验前，应当对被检表面喷涂白色反差剂，以提供较高的对比度。2)White backing intensifying contrast agent shall be applied in a spray of a uniform layer on the surface being examined,dry film thickness shall be approximately 25-microns(0.0010-mils),but shall n

26、ot exceed 50-microns(0.0020-mils).白色反差剂应当均匀地喷涂在被检表面，干膜厚度大约为25 微米，但不超过50 微米。3)Wet magnetic particles shall be applied by aerosol spray onto the surface of interest.湿式磁悬液应当通过喷雾的方式喷涂在被检表面。CONTINUOUS MAGNETIZING METHOD 连续法The magnetizing current shall be switched on during the period the magnetic partic

27、les are being applied.施加磁粉检测过程中，电源应始终处于开启状态。The magnetizing time is equal to or more than 3 seconds with two or more shot given to the part flow of magnetic particles。磁化时间为大于等于3 秒，为保证磁化效果，应至少反复磁化两次或以上。MAGNETIC FIELD DIRECTION FOR CONTINUOUS METHOD 磁化方向At least two separate examinations shall be perf

28、ormed on each area.During the second examination,the lines of magnetic flux shall be approximately perpendicular to those used during the first examination.When indications are detected,the indications shall be closely examined with the magnetic field perpendicular to the indications.The Yoke spacin

29、g shall be 76.2 to 152.4 mm.maximum,adjusted to suit the configuration of the examined area and shall provide 100%examination.名师资料总结-精品资料欢迎下载-名师精心整理-第 8 页，共 11 页 -OFFSHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROCEDURE PAGE 9 OF 10 被检工件的每一被检区至少进行两次独立的检测，两次检测的磁力线方向应大致相互

30、垂直。当发 现 缺 陷 时，应 再 近 距离、并 且使 磁 力 线 垂 直 缺 陷 进 行检 查。磁轭 的 磁 极 间 距 最 为76.2152.4mm，可以根据被检表面的状况进行调整，但要保证进行100%的检验。每次检验都应保证足够的重叠。MAGNETIZING FIELD ADEQUACY 磁场强度1)To verify the adequacy or direction of the magnetizing field,the Magnetic Particle Field Indicator described in Fig.1 shall be used by positioning

31、 the indicator on the surface to the examined.按照附图 1 磁场强度指示器，将其放置在被检表面，来确定磁场的强度和方向。2)Adequate sensitivity is demonstrated for that particular yoke spacing when a clearly defined line of magnetic particles forms across the copper face of the indicator,when the 名师资料总结-精品资料欢迎下载-名师精心整理-第 9 页，共 11 页 -OFF

32、SHORE OIL ENGINEERING CO.,LTD.QC-DOC-DPP-0003MAGNETIC PARTICLE INSPECTION PROCEDURE PAGE 10 OF 10 magnetic particles are applied simultaneously with the magnetizing force.When a clearly defined line of particles is not formed,or is not formed in the desired direction,the magnetizing technique shall

33、be changed or adjusted.同时施加磁力及磁粉时，铜质指示器表面形成清晰可见交叉磁粉线条，表明已获得了适当的灵敏度。当一条清晰的粒子线没有形成或没有在所要求方向形成线形时，应改变或调整磁粉检测技术。INTERPRETATION OF INDICATIONS 显示判定Any indication shall be interpreted according to the requirement of ASME VIII division 1,APPENDIX 6.所有的显示都应当按照 ASME VIII 卷1,附录6的要求进行判定。All indications shall b

34、e interpreted according to whether its relevant or non-relevant(false indication).Testing personnel should properly evaluate indication by either:retesting with the yoke field perpendicular to the discontinuity indication;or retesting and ensuring that excess particles are removed,or using grinding

35、as a means to further interpret and evaluate indications.All indications that are ground should be continuously re-inspected with MT.按相关或非相关（假缺陷），对所有显示进行评判。测试人员应该正确的评估：重新测试与缺陷垂直的方向或重新测试并确保去除过多的磁粉，或通过打磨方法进一步评估其显示，所有打磨后的显示需重新进行MT 检验。ACCEPTANCE STANDARD 验收标准Acceptance Criteria shall be to ASME VIII div

36、ision 1,APPENDIX 6.按照业主规格书的要求即 ASME VIII 卷1,附录6进行验收。7.0 REPORT FORM 报告格式Magnetic Particle Inspection report 磁粉检验报告名师资料总结-精品资料欢迎下载-名师精心整理-第 10 页，共 11 页 -Q-P02-S17 Report No.:Project Name:Inspection Site:Structure Name:MT Procedure:Material:Surface Condition:Equipment Type:Sensitivity Block:Lifting Fo

37、rce:Type of Magnalite:Couplant:Method:Magnetizing Time:Acceptance Criteria:Notes:W.L.:Weld Length D.P.:Defect Position D.L.:Defect Length D.I.:Defect Identification(C-Crack P-Porosity SI-Slag Inclusion)Examiner Name/Level:Owner:Certifying Authority:Signature:Date:Date:Date:D.I.Repair ReportNo.RemarkW.L.D.P.D.L.JudgeDWG No.NDT Drawing No.Weld No./Joint No.Welder No.BLUOCEAN TECHNOLOGY INSPECTION Co.,Ltd.MAGNETIC PARTICLE EXAMINATION REPORT名师资料总结-精品资料欢迎下载-名师精心整理-第 11 页，共 11 页 -