Is NDT technical content high, and what are the standards for NDT?

Now it's very mature, not high-tech.

At present, the sensor technology, ultrasonic technology, and measurement and control technology are still a bit technical, but they can only be inspected little by little with a probe, and can generally only be used for parts or relatively simple machinery. In the future, more advanced technologies and principles may be used to quickly scan to detect flaws, so that larger or more complex things such as vehicles and even people can be detected. It's so easy to say upstairs, don't treat knowledge like that.

Non-destructive testing: Like many industries, it is an industry that must have experience, and it is also based on experience.

Just talking about getting started, it is relatively simple to take a certificate, and it can even be said that it is very easy to test.

You said that the content must be there, so you have to have experience and rely on experience to determine the type of defect.

Whether it's radiation, ultrasound, etc.

The standard of non-destructive testing is to detect whether there are defects or inhomogeneities in the inspected object without damaging or affecting the performance of the inspected object, and give information such as the size, location, nature and quantity of defects.

Non-destructive testing has the following characteristics:

The first is that it is non-destructive, because it will not damage the performance of the detected object when doing the test;

Second, it is comprehensive, because the detection is non-destructive, it can carry out 100% comprehensive detection of the detected object when necessary, which is not possible with destructive testing;

Third, it has the whole process, destructive testing is generally only applicable to the detection of raw materials, such as tensile, compression, bending, etc., which are commonly used in mechanical engineering, destructive testing is carried out for manufacturing raw materials, for finished products and in-process supplies, unless they are not prepared to continue to serve, they cannot be destructively tested, and non-destructive testing is not damaged because the performance of the tested object is not damaged.

Therefore, it can not only test the raw materials used in manufacturing, the intermediate process links, and the final finished product, but also the equipment in service.

The five conventional methods are: Ultrasonic Testing (UT), Radiographic Testing (RT), Magnetic Testing (MT), Penetrant Testing (PT), and Eddy Current Testing.

An overview of the five common flaw detection methods.

The five conventional methods are radiographic flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, eddy current flaw detection and penetration flaw detection.

Conventional non-destructive testing methods: radiographic testing (RT), ultrasonic testing (UT), magnetic particle testing (MT), penetrant testing (PT), visual testing (VT), eddy current testing (ET) (among which VT and ET are routine in foreign countries, but less are done in China).

Advanced non-destructive testing methods: digital ray, time-of-flight diffraction (TOFD), phased array (PAUT), magnetic flux leakage detection (MFL) of tank floor, guided wave testing (GW).

Summary. Defects that may occur inside the metal, such as porosity, pinholes, inclusions, porosity, cracks, segregation, lack of penetration and insufficient fusion, can be examined by radiography.

The commonly used methods of radiographic flaw detection are X-ray flaw detection, radiographic flaw detection, high-energy ray flaw detection and neutron ray flaw detection. For the commonly used industrial radiographic testing, X-ray testing and radiographic testing are generally used.

Which kind of non-destructive testing is more economical and reasonable.

Please wait patiently for 3 minutes, we are sorting out, and we will answer you immediately, and please do not end the consultation.

Large-scale equipment, using ultrasonic flaw detection, weld using X-ray flaw detection, is more economical.

Defects that may occur inside the metal, such as porosity, pinholes, inclusions, porosity, cracks, segregation, lack of penetration and insufficient fusion, can be examined by radiography. The commonly used methods of radiographic flaw detection are X-ray flaw detection, radiographic flaw detection, high-energy ray flaw detection and collapse neutron ray flaw detection. For the commonly used industrial radiographic testing, X-ray testing and ejection line testing are generally used.

Bush shirts. Ask about custom messages].

What are the materials of NDT testing? Hello Douxiao, I am glad to answer for you<> pro-ultrasonic probe Ultrasonic probe is a device that emits and receives ultrasonic waves during ultrasonic testing. The performance of the probe directly affects the characteristics of the ultrasound and affects the detection performance of the ultrasound.

The probe used in ultrasonic testing is a transducer that uses the piezoelectric effect of materials to realize the transfer of electrical energy and sound energy. The key component of the transducer is the element, which is a single or polycrystalline sheet with a piezoelectric effect, which converts electrical and acoustic energy to each other. Sensitivity enhancement screen can be divided into medical, dental and industrial according to the use, the industrial use is mainly lead foil sensitivity screen and stainless steel sensitivity enhancement screen, which is used for industrial nondestructive testing.

Medical sensitization screen is an indispensable and important equipment for clinical radiography, which can be used in conjunction with X-ray film, which can transform the X-ray penetrating the body into visible light that makes the film photosensitive, and improve the utilization efficiency of X-ray on film sensitivity. It has been determined that more than 95% of the optical density images formed on the X-ray film are quietly caused by the fluorescent substances on the sensitizing screen converting the X-ray energy into visible fluorescent light energy and then sensitizing the film, while less than 5% of the optical density images are made by the X-ray direct sensing developer to make the latent image produced by the photosensitive material appear into visible images. Nomenclature of ultrasonic probe models of non-destructive testing instruments "Nomenclature of ultrasonic probes of non-destructive testing instruments" is an industry standard implemented on November 1, 2012.

Extended material: I hope mine can help you <>

Do you have any other questions?

There are radiographic testing, magnetic particle testing, coloring testing, and ultrasonic testing.