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1)  Magnetic particle testing
磁粉检测
1.
Doing research on magnetic particle testing process of propylene spherical welded seam by using magnetic non-destructive detection technology can exactly and reliably test the defects of the materials and get an analytical result,thus reduce the wastage and assure safe operation of the pressure container.
利用磁粉无损检测技术,进行了丙稀球罐拼板焊缝磁粉检测工艺试验研究。
2.
Magnetic particle testing steps and elements were described in detail,and testing traces of the magnetic particle characteristics,as well as defects in the post-processing methods were introduced.
针对球形储罐在制造、安装和使用过程中可能出现的表面缺陷,磁粉检测是重要的检测方法之一。
2)  Magnetic particle inspection
磁粉检测
1.
And taking magnetic particle inspection results of one downhole services company s three workover masts as examples,the characters of defects were analyzed.
根据SY/T 6408-2004和JB/T 4730-2005标准,对车载式轻便修井井架关键区域的检测方法和技术进行了分析论证,得出磁粉检测适用于对修井井架关键区域的检测。
3)  fluorescent magnetic particle testing
荧光磁粉检测
1.
Comparison test and practical experience clearly showed, the defect detectibility of the fluorescent magnetic particle testing is far higher than the black magnetic particle testing.
对比试验与实践经验表明 ,荧光磁粉检测比黑色磁粉检测有高得多的缺陷检出率。
4)  black magnetic particle testing
黑色磁粉检测
1.
Comparison test and practical experience clearly showed, the defect detectibility of the fluorescent magnetic particle testing is far higher than the black magnetic particle testing.
对比试验与实践经验表明 ,荧光磁粉检测比黑色磁粉检测有高得多的缺陷检出率。
5)  magnetic particle testing system
磁粉检测系统
6)  Magnetic Particle Testing Equipment
磁粉探伤检测器
补充资料:磁粉检测
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性质:无损检测的一种,多用于发现铁磁材料或零件表面的缺陷。首先对被检工件(铁磁性材料)进行外磁磁化处理,再在其表面上均匀喷洒细微粒磁粉(平均粒度为5~10微米),如果被检工件不存在缺陷,由于导磁率均匀无变化,工件表面上的磁粉是均匀分布的。若在其表面上存在缺陷,会产生的磁阻变化,使缺陷处产生漏磁场,并形成一个小小的N-S磁极,使磁粉在缺陷处形成堆积现象。这种检测的优点是可有效查出铁磁材料的表面缺陷,比其他无损检测方法简单、实用且十分直观,结果可靠。但缺点是无法测出表面以下深埋的缺陷,而且无法检测有色金属、奥氏体钢、非金属以及非导磁材料。

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