Method for repairing industrial turbine bearing bush through laser cladding of babbitt metal

Abstract

The invention discloses a method for repairing an industrial turbine bearing bush through laser cladding of babbitt metal, and relates to the technical field of laser cladding. The method involves a box body structure, and a temperature measuring structure for detecting the temperature of a workpiece in the welding process is slidably connected into the box body structure. According to the method for repairing the industrial turbine bearing bush through laser cladding of the babbitt metal, the babbitt metal can be machined and formed through a laser cladding technology, the problem of unshelling of the babbitt metal can be thoroughly solved, meanwhile, a babbitt metal coating can be prepared on the surface of the industrial turbine bearing bush through the laser cladding technology, the structure of the babbitt metal coating is uniform, no metallurgical defects occur, metallurgical bonding with a base body is firm and reliable, the forming size is uniform and controllable, the problems existing in an original manual welding process method are completely solved, the whole forming process is automatically completed through a mechanical arm, manual labor is liberated, the operation environment is greatly improved, and it can be guaranteed that the industrial turbine bearing bush cannot be blackened or vaporized in the cladding process.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a method for repairing industrial turbine bearing bushes by laser cladding Babbitt alloy. Background technique [0002] The high-power laser beam instantly micro-melts the surface of the workpiece, and at the same time completely melts the alloy powder that is automatically fed synchronously to obtain a dense coating that is metallurgically combined with the base material, thereby significantly improving the wear resistance, corrosion resistance, and heat resistance of the base material surface. , anti-oxidation and other properties. When there is continuous processing in the existing laser cladding process, because the rotor temperature is high, the rotor surface will be blackened and vaporized, and the alloy composition will change, and the elements with low melting point will be lost, which will affect the use of the rotor. The problem. Contents of the invention [0...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method for repairing industrial turbine bearing bushes by laser cladding Babbitt alloy, which solves the problem of continuous processing in the existing laser cladding process due to high rotor temperature. The surface of the rotor will be blackened, vaporized, and the composition of the alloy will change, and the elements with low melting point will be lost, which will affect the use of the rotor

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