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Eddy Current Testing of Tubes

For stainless steel tube manufacturers, a headache is product failure rate. Eddy current testing is used to prevent damage before it is too late. Eddy current testing is a non-destructive testing method widely used to examine tubing in heat exchangers, steam generators, condensers, air coolers and feedwater heaters.

Eddy current inspection is applicable to the inspection of conductive materials. The common metal materials can be divided into two categories: non-ferromagnetic materials and ferromagnetic materials. The latter are copper, aluminum, titanium and their alloys and austenitic stainless steel; The former is steel, iron and its alloy. The essential difference between them is that the material's permeability is about 1 or much greater than 1. In power plants, except for a small number of pipes such as rehydrator, copper, titanium, austenitic stainless steel and other non-ferromagnetic materials, a large number of pipes are made of ferromagnetic materials such as steel pipe, typical applications include coal economizer, water wall, etc.

In fact, eddy current inspection is very common in the stainless steel welded pipes. This technology can be said to be the Gospel of stainless steel pipe manufacturers, improve the production rate, reduce the rate of disqualification.

In order to ensure product quality, Huashang Steel adopts eddy current flaw detection to "block" the defective products in the workshop and ensure the factory acceptance rate.

Eddy Current Testing of Tubes in Huashang Steel Workshop

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