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Boiler nondestructive testing is a big secret, it is very im

Because the boiler needs to withstand higher temperatures and pressures during use, it is easy to explode, threatening the safety of the society, enterprises and employees, and life safety....

Common problems and solutions for austenitic welds-1

Austenitic stainless steel is one of the most widely used metal materials in petrochemical production, and its welding performance is good, but it is also prone to many problems during the welding process. For example: cracks, joints are not fused, sl...

Common problems and solutions for austenitic welds

When argon arc welding is used to weld austenitic stainless steel, there are various accidental or inevitable factors that cause some poor soldering defects. Analysis of the causes and remedies are a means to improve the yield....

X-ray non-destructive testing technology for networking proj

The reporter learned from Qinghai Electric Power Maintenance Company that the company successfully applied X-ray non-destructive testing technology to test the 232 tensile clamps of the 29-kilo-resistant tower of the Qinghai-Tibet Networking Project....

Austenitic stainless steel welding

Austenitic stainless steel is one of the most widely used metal materials in petrochemical production. Its welding performance is good, but it is easy to produce many problems in the welding process....

Application of non-destructive testing technology in boiler

Most of the pressure vessels use low-alloy or carbon steel such as 16MnR, so that the equipment has the characteristics of coercive force and low remanence. Therefore, only continuous method can be used when detecting equipment defects....

Non-destructive testing considerations

From the perspective of non-destructive testing of pipe weld quality, the following aspects should be considered in the design phase, so as to be more conducive to the implementation of inspection work and the improvement of project quality....

Penetration test

Penetrant testing is used to inspect surface opening defects (raw materials, processes, uses) of metals (steel, heat resistant alloys, aluminum alloys, magnesium alloys, copper alloys) and non-metallic (ceramic, plastic) parts or materials, such as cr...

Magnetic particle detection

After the ferromagnetic material and the workpiece are magnetized, due to the discontinuity, the magnetic field lines on the surface of the workpiece and the near surface are locally distorted to generate a floor magnetic field, and the magnetic powde...

Method for determining the number of times of through-hole b

The number of transillumination times of the small-diameter tube butt joint 100% detection: when obliquely transilluminated elliptical imaging, when T/Do ≤ 0.12, the transillumination is separated by 90° twice....