Magnetic particle flaw detector for blade detection

Abstract

The invention discloses a magnetic particle flaw detector for blade detection. The magnetic particle flaw detector comprises a rack; two magnet yoke assemblies which are oppositely arranged on the rack and used for acting on the blades on the two sides and magnetizing magnetic powder on the surfaces of the blades; a lifting driving mechanism which is arranged on the rack and used for adjusting thevertical position according to the size of the blades; a rotary driving mechanism which is installed on the lifting driving mechanism and used for achieving circumferential rotation of the blades; and a blade clamp mechanism which is mounted on the rotary driving mechanism, is positioned between the two magnet yoke subassemblies and is used for realizing reliable clamping of the blades. The magnetic particle flaw detector for blade detection has the advantages of stability, reliability, simplicity in operation, high flaw detection efficiency, low labor intensity and the like, and is suitablefor detecting cracks or various fine defects of the surface and the near surface of a component made of a ferromagnetic material caused by raw materials, forging, casting, quenching, processing, fatigue and the like by a wet magnetic powder continuous method; the detection time is obviously shortened, and the efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of blade detection, in particular to a magnetic particle flaw detector for blade detection. Background technique [0002] Gas turbine compressor blades have multiple variable sections, the profile is multi-curved, the blade body is extremely thin, and the tenon is thicker, and the blade top and intermediate parts are curved or inclined, and the shape is extremely complex. In the industry, the magnetic particle inspection method is generally used for flaw detection, but the magnetic particle inspection of this part has the following difficulties: ① It is difficult to achieve 100% coverage by the common magnetic particle inspection method; Small area, easy to burn parts; ③ clamping thin curved parts, easy to cause deformation of parts; ④ tenon part is a special-shaped surface, it is difficult to clamp effectively; ⑤ methods such as coil and induction method cannot effectively detect blade top and tenon parts; ...

AI Technical Summary

Problems solved by technology

In the industry, the magnetic particle inspection method is generally used for flaw detection, but the magnetic particle inspection of this part has the following difficulties: ① It is difficult to achieve 100% coverage by the common magnetic particle inspection method; Small area, easy to burn parts; ③ clamping thin curved parts, easy to cause deformation of parts; ④ tenon part is a special-shaped surface, it is difficult to clamp effectively; ⑤ methods such as coil and induction method cannot effectively detect blade top and tenon parts; The part needs to be magnetized separately after the blade is magnetized as a whole, and the efficiency is extremely low

Images