磁粉检测

磁粉检测20年回顾

Twenty-year review : magnetic particle inspection

本文通过对磁粉检测规范和工艺进行研究，研制出将PLC应用于磁粉探伤设备。

This article through to the magnetic particle testing standards and technology research , develop will PLC in the magnetic powder flaw detection equipment control system .

回顾学会成立20年来在开展磁粉检测（MT）学术交流，发展磁化技术，进行基础理论研究、设备开发、探伤器材和原材料生产、人员培训及标准化工作等方面所取得的成果。

Scientific exchanges , research on basic theory of magnetic particle testing ( MT ), development of magnetizing technology , production of MT equipment and raw materials , training of personnel and standardization work carried out in the field of MT last twenty years are reviewed .

焊缝缺陷磁粉检测结果的统计分析

Statistic analysis on magnetic particle defect detection results of welds

磁粉检测试片的分类与应用

Classification and Application of the Shims for Magnetic Particle Testing

铁磁性容器的渗透与磁粉检测方法比较

Comparison of Penetrant and Magnetic Particle Testing for Ferromagnetic Container

磁粉检测在电站锅炉定期检验中的应用

Application of Magnetic Particle Testing During Plant Boiler Periodical Inspection

在用蒸压釜磁粉检测的重点部位和常见错误

Focus Parts and Common Mistakes in Magnetic Particle Testing of the Autoclave in Service

目前，半自动荧光磁粉检测设备已经大量使用，然而检查由荧光粉显示的裂纹仍旧依靠人眼识别。

At present , semiautomatic device for fluorescent magnetic particle testing has been largely used .

炮弹弹体生产中，磁粉检测发现表层缺陷。

During the production of shell bodies , surface defects were found by magnetic powder inspection .

GB/T12604.5-1990无损检测术语磁粉检测

Terminology for nondestructive testing-Magnetic particle testing

用荧光磁粉检测重要压力容器的表面缺陷

Use of Fluorescent Magnetic Particle Testing for the Inspection of Surface Defects on Important Pressure Vessels

小尺寸管座角焊缝磁轭法磁粉检测工艺探讨

An approach to magnetic particle detection technology used for angle weld joint on small size tube socket based on yoke magnetization method

研究了磁记忆检测技术在铁道机车承力部件上的应用，在对铁道机车车辆的轮心进行了磁记忆检测后，用磁粉检测进行了复检。

The MMMT was applied in the components of locomotive . After that , the magnetic powder testing was also carried out .

由于超高压容器一般为锻造的厚壁筒体结构，制造过程中的无损检测以超声检测、磁粉检测和渗透检测为主。

The primary NDT methods for ultra-high pressure vessel during fabrication are ultrasonic testing , magnetic particle testing and penetrant testing for the structure character .

铁磁体材料上所有粘附表面，若不能作渗透检测，可采用磁粉检测方法。

All attachment areas in ferromagnetic materials shall be examined by the magnetic particle technique , if this is not possible by liquid penetrant methods .

针对磁粉检测中磁轭的提升力指标的物理意义、影响因素及几种典型磁轭的提升力指标进行了分析讨论。

The physical meaning and influence factors of lifting power were discussed , and the lifting power index of the typical yokes for magnetic testing was analyzed .

介绍了磁粉检测、渗透检测、涡流检测、射线检测和超声波检测技术在焊接裂纹检测中的应用状况。

The application status of magnetic particle testing , penetrant testing , eddy current testing , radiographic testing and ultrasonic testing in weld crack inspector were introduced .

为企业提高磁粉检测水平和质量提供了可靠而有效的技术保证，具有广泛的社会效益和经济效益。

For enterprises to improve the magnetic powder detection level and quality to provide a reliable and effective technology guarantee , wide social benefits and economic benefits .

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。

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 .

在弹体的生产过程中，有些弹体的外表面会出现瑕疵，我们应用磁粉检测系统对其外表面进行无损检测。

During shell body production , some bodies ' exterior surface will have flows , we apply magnetic particle detection system of lossless detection to the exterior surface .

荧光磁粉检测是一种常用的无损检测方法，用于检测钢制零件的表面及近表面的裂纹缺陷，长期以来一直被认为是表面裂纹检测最灵敏的方法之一。

Fluorescent magnetic particle testing is a NDT method that often used for testing trivial flaws on the surface of ferromagnetic materials in order to control the qualities of product .

研究内容主要包括：1.通过计算分析得到，磁粉检测过程中反差增强剂喷涂工艺在现阶段无法实现自动化完成，因此仍保留人工参与。

The main contents are as follow : 1 . Through calculation and analysis , ensure that the process of spraying the contrast agent need to be done by human .

然后对该球罐进行了开罐检查，从球罐内部用超声波测厚仪进行了球壳板的厚度测量和表面磁粉检测。

And then open the spherical tank to check , spherical shell plate thickness and surface magnetic powder testing were carried out by ultrasonic thickness gauge from the internal sphere .

系泊链条作为钻井平台等水上作业物固定连接的主要部件，对其可靠性提出了非常高的要求，制造后的系泊链需要进行磁粉检测。

Mooring chain is the very important connection element for the plant on the sea such as the drill platform . The manufactured chain need to take the magnetic particle testing .

对压力容器原材料、压力容器制造和使用过程中采用的磁粉检测技术的应用现状、行业特点和发展趋势等进行了综述。

The application status , industry characteristics and development trend of magnetic particle testing used in raw material inspection , fabrication inspection and in service inspection of pressure vessels were summarized .

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。

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 .

在用超高压容器的无损检测以表面检测为主，方法有工业内窥镜检查、磁粉检测、渗透检测、磁记忆检测和涡流检测等。

The primary NDT methods for ultra-high pressure vessel in service are industrial inner peek-mirror examination , magnetic particle testing , penetrant testing , metal magnetic memory testing , eddy current testing and so on .

本论文的重点是解决全自动荧光磁粉检测系统的算法问题，主要内容包括：图象采集，图象的预处理，图象分割，图象的数学形态学处理，区域标号以及特征提取和裂纹的识别。

This paper mainly describes the theory of the automated fluorescent magnetic particle testing , including the image sampling , image segmentation , image mathematic morphologic pretreatment , thresholding division , label , eigenvalue extraction and flaw recognition .

电涡流传感器检测技术是近年来应用较广泛的一种无损检测方法，它同磁粉检测、超声波检测、射线检测和渗透检测统称为五大无损检测技术。

Eddy-current sensor test technology is a kind of very popular untouched nondestructive test technology developed in last decades , which makes up five major modern nondestructive test technologies together with magnetic particle test , radial test , ultrasonic test and osmosis test .