MT-Procedure-中英文.doc

精品文档，仅供学习与交流，如有侵权请联系网站删除磁粉检测通用工艺规程Technics Regulation for Magnetic particle Test1 主要内容和适用范围1 Scope1.1 本规程规定了磁粉检测人员资格、所用设备、器材、检测技术和质量分级等1.1 This regulation define the qualification of Magnetic particle test person, facility , equipment, examining method and quality grade.本规程按JB/T 4730.4-2005的要求编写适用于铁磁性材料的机加工件、焊缝、板材坡口面等表面和近表面缺陷的检测，不适用于非磁性材料及磁性材料与非磁性材料结合部位的检测满足GB 150、《压力容器安全技术监察规程》和相关标准的要求1.2 This regulation is compile based on JB/T 4730.4-2005. It is suitable for ferro-magnetic material, such as machining workpiece, weld seam, groove face of plate and near surface flaw. The regulation is not suitable for non-magnetic substance and bonded block made with ferro-magnetic material and non-magnetic substance. The regulation satisfied with GB-150, 《Supervision, Regulation on Safety Technology for Pressure vessel》 and correlative standard.1.3 本规程适用于非荧光湿磁粉的连续磁化技术。

1.3 This regulation is suitable for continuous Magnetizing technique of non-fluorescent wet magnetic particle.1.4 检测工艺卡是本规程的补充由Ⅱ级或以上人员按合同及本规程和JB/T 4730.4-2005编制，其参数规定得更具体1.4 Examine process chart is a supplement of this regulation. The chart is prepared be grade II person or more than grade II person, and the chart is prepared following contract, this regulation and JB/T 4730.4-2005. The parameter in process chart is more detailed.2 检测人员 2 Testers2.1 检测人员必须经过培训，按《特种设备无损检测人员资格考核与监督管理规则》取得与其工作相适应的资格证书，并负相应的技术责任。

2.1 All personnel engaged in Magnetic Particle examination must be trained technically and examined and appraised in accordance with 《Special Equipment Nondestructive Testing and Supervising Standard》.These person should have corresponding technical responsibility. And take corresponding technical responsibilities.2.2 检测人员每年应检查一次身体，其未经矫正或经矫正的近（距）视力和远（距）视力应不低于5.0（小数记录值为1.0），不得有色盲2.2 The personnel engaged in nondestructive testing must have excellent physical conditions and do physical check-up once a year, corrected eyesight must not be lower than 1.0. The personnel engaged in magnetic powder testing and penetration testing must not be color blind and weak.3 设备、工具和材料3. Facility, Equipment and Material Ⅰ、Ⅱ级人员按下列条件和工艺卡要求选用设备、工具和材料。

Person with grade I and II should choose facility, equipment and material as following condition and chart.3.1 磁化设备及校验3.1 Magnetizing Equipment and Calibration3.1.1 磁化设备见表13.1.1 Magnetizing Equipment is shown as Table 1.表1 磁粉检测设备（按公司现有设备修改下表）Table 1 Magnetic Particle Testing Equipment制造厂/Manufactory型号/Model结构形式/Type提升力/Lifting power备注/Note江苏射阳探伤机厂/Jiangsu She yang detective equipment companyDCE-E2便携式/portable typeAC提升力≥118NAC Lifting power≥118N交叉磁轭/cross yoke江苏射阳探伤机厂/Jiangsu She yang detective equipment companyDCE-C便携式/portable typeAC提升力≥118NAC Lifting power≥118N交叉磁轭/cross yoke注：提升力用试块测定，当使用磁轭最大间距时，交流电磁轭至少应有45N的提升力，直流电磁轭至少应有177N的提升力，交叉磁轭至少应有118N的提升力（磁极与试件表面间隙≤0.5mm）。

Note: Lifting force is tested by shim. When use the maximum yoke distance, the lifting power of alternating current yokes should at least 45N and 177N for DC yoke. The lifting power of cross yokes at least 118N . (the distance between magnetic pole and shim ≤0.5mm )3.1.2 磁化设备的校验3.12 Calibration of Magnetizing Equipment（1） 电流表精度校验(1) Calibration of amperemeter precision磁粉检测设备的电流表，至少半年校验一次当设备进行重要电气修理或大修后，应进行校验Magnetizing equipment with an ammeter shall be calibrated at least once half a year, or when-ever the equipment has been subjected to major electric repair, periodic overhaul, or damage.（2） 电磁轭提升力校验(2) Lifting power of Yokes电磁轭的提升力至少半年校验一次。

在磁轭损伤修复后应重新校验The magnetizing power of electromagnetic yokes shall be checked twice a year. The magnetizing power of all yokes shall be checked whenever the yoke has been damaged or repaired.3.2 灵敏度试件3.2 Shim of sensitivity3.2.1 标准试片主要用于检验磁粉检测设备、磁粉和磁悬液的综合性能，了解被检工件表面有效磁场强度和方向、有效检测区以及磁化方法是否正确标准试片有A1型、C型、D型和M1型其规格、尺寸和图形见表23.2.1 The normal shim mainly used for checking magnetic particle testing machine, magnetic particle and magnetic suspension. To check whether the effective magnetic density, effective checkout zone and Magnetizing method are correct or not. The type of normal shim are A1, C, D and M1. The size and graph are shown as Table 2.表2 标准试片的类型、规格和图形Table 2 Type, Size and Graph of normal shim类型/type规格：缺陷槽深/试片厚度，μmsize: depth of defect/ thickness of shim, μm图形和尺寸，mmgraph and size, mmA1型A1-7/50A1-15/50A1-30/50A1-15/100A1-30/100A1-60/100C型C-8/50C-15/50D型D-7/50D-15/50M1型φ12mm7/50φ9mm15/50φ6mm30/50注：C型标准试片可剪成5个小试片分别使用。

Note: Normal shim of type C can be used divided 5 pieces.磁粉检测时一般应选用A1-30/100型标准试片当检测焊缝坡口等狭小部位，由于尺寸关系，A1型标准试片使用不便时，一般可选用C-15/50型标准试片为了更准确地推断出被检工件表面的磁化状态，当用户需要或技术文件有规定时，可选用D型或M1型标准试片As a rule, model test piece can be chose A1-30/100. If it is not convenient to use A1 model test piece for sensitivity to test the narrow parts, such as weld groove, because of small size, C-。