Current location - Education and Training Encyclopedia - Education and training - What is nondestructive testing technology?
What is nondestructive testing technology?
Non-destructive testing is to use the characteristics of sound, light, magnetism and electricity to detect whether there are defects or inhomogeneities in the detected object, give information such as the size, location, nature and quantity of defects, and then judge the technical state of the detected object.

Personnel engaged in nondestructive testing need to receive professional training and obtain qualifications before they can take up their posts with certificates.

Various countries, regions and institutions have different requirements for the qualification certification of nondestructive testing training. Understand clearly before training, and select appropriate standards and institutions for relevant training and assessment.

It can not only detect raw materials for manufacturing, all intermediate processes and final products, but also detect in-use equipment.

/iknow-pic . cdn . BCE Bos . com/5 fdf 8db 1cb 134954 CD 83 1008594 e 9258d 1 094 a 39 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >/iknow-pic . cdn . BCE Bos . com/5 fdf 8db 1cb 134954 CD 83 1008594 e 9258d 1094 a 39? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ 5 fdf 8db 1cb 134954 CD 83 1008594 e 9258d 1094 a39 "

Extended data

Features:

1, nondestructive

Non-destructive-means that no parts are lost except unqualified products when the test results are obtained. Therefore, the inspection scale is not limited by the number of parts, and can be used for sampling inspection and general inspection when necessary. Therefore, it has more flexibility (general inspection and random inspection) and reliability.

2. Mutual compatibility

Compatibility-that is, the compatibility of inspection methods, that is, the same part can adopt different inspection methods at the same time or in turn; And the same test can be repeated. This is also a non-destructive benefit.

3. Dynamic

Dynamic-that is to say, nondestructive testing method can check the parts in use, and can timely investigate the cumulative impact of product operation. Therefore, the failure mechanism of the structure can be found out.

Step 4 be strict

Rigidity-refers to the rigor of nondestructive testing technology. First of all, nondestructive testing requires special instruments and equipment; At the same time, specially trained inspectors are required to operate according to strict procedures and standards.

5. Differences in test results

Differences in test results-Different inspectors may have different test results for the same sample. Especially for ultrasonic inspection, the same inspection project should be completed by two inspectors. Need "consultation".

/baike.baidu.com/item/%E6% 97% A0% E6% 8d% 9f% E6% A3% 80% E6% B5% 8b/79873 "target =" _ blank "title =" Baidu Encyclopedia -NDT "> Baidu Encyclopedia-NDT.