NDT brief

NDT is the abbreviation of nondestructive testing

NDT means materials or a damage or not does not affect its future use performance or use of detection means,by using NDT,Can find materials or workpiece defect of the existing internal and surface,Can measure the geometrical characteristics of the workpiece and the size, the material or artifacts can determine internal composition, structure, physical properties and status。

NDT Can be applied to product design, material selection, processing and manufacturing, finished goods inspection, check in service,Between quality control and cost reduction can optimize function,NDT also helps to ensure the safe operation of the product and (or) effective use。

NDT Contains many kinds of method can be effectively used, normally are :Radiographic testing, ultrasonic testing, eddy current testing, magnetic particle testing, penetrant testing, visual detection, leak detection, acoustic emission testing, X-ray perspective。

Because all sorts of NDT methods, are each have its scope of application and limitations, so new NDT methods have been overtaken by the development and application. Usually, as long as satisfies the basic definition of NDT, any kind of physical, chemical or other possible techniques, can be developed as a kind of NDT methods.

In our country, the word nondestructive testing the earliest known as inspection or nondestructive flaw detection, the different methods are also known as inspection, such as X-ray detector, ultrasonic testing, magnetic particle testing, penetration testing, and so on. This Mr or written widely and has been in use today, its usage as nondestructive testing. Abroad, nondestructive testing is a word the corresponding word in English, in addition to the first half of the word, the non - destructive writing are the same, the later half of the method is different。Such as Japan's habit of writing inspection, many European countries used to writing flaw detection, unified use testing now, the United States in addition to also use testing, seems to prefer writing examination and evaluation. These words with the first half, the form of abbreviations, respectively is NDI, NDT and NDE, translated into Chinese in nondestructive flaw detection, nondestructive inspection, nondestructive inspection, nondestructive inspection, nondestructive testing, nondestructive evaluation form and write different terms。In fact, these different English and its corresponding Chinese terms, they have the same meaning, are synonymous. Nondestructive testing for this, the international organization for standardization technical committee (ISO/TC 135) formulated and issued a new international standard (ISO/TS 18173:18173), to these different forms and unified term writing, clearly they are a same definition of the term, are synonyms, which are equivalent to NDT (non - destryctive testing). And different wording, just due to different language habits。

As a standardized terminology, therefore, it is recommended to use the word "nondestructive testing", the corresponding word in English is recommended "Non - destructive testing". The name of the nondestructive testing methods, and also it is recommended to use the word "test", such as radiographic testing, ultrasonic testing, magnetic particle testing, penetrant testing, eddy current testing and so on. In translation, are connected to the Non - destructive use of English words, such as inspection, examination and evaluation, into the word "nondestructive testing", is recommended to avoid writing "NDT", "nondestructive inspection", "nondestructive inspection", "nondestructive evaluation", etc. This translation is also suitable for all kinds of NDT method name。

Normal English NDT methods and its abbreviation

ultrasonic testing — UT

magnetic particle testing — MT 

computed tomographic testing — CT 

visual testing — VT 

radiographic testing — RT 

penetrant testing — PT 

acoustic emission testing — AT、AE 

eddy current testing — ET