Application of Laser Cladding Technology in Electric Power Industry

Application of Laser Cladding Technology in Electric Power Industry

With the development of economy and society, renewable energy has been given new missions such as energy conservation and emission reduction, greenhouse gas emission control and air pollution prevention and control. Wind and hydropower, as pollution-free and pollution-free new energy sources for power generation, have made great contributions to the power industry.

However, in the power industry, the components of power generation equipment are subjected to the test of gas, high temperature, high pressure and corrosive medium to varying degrees in the operating environment. Equipment that has been used for a long time may be partially damaged due to aging. In order to prolong the service life of expensive production equipment, it can be repaired using surface remanufacturing technology.

Laser cladding technology is an important method of material surface modification technology. It uses a high-energy density laser beam to rapidly melt alloys with different compositions and properties and the surface of the substrate, forming a completely different composition and Properties of the alloy layer in the rapid solidification process. Under the action of rapid heating, the matrix is minimally affected by heat and has no deformation. The fusion layer alloy is a self-contained system, and its structure is dense, the grain is refined, the hardness and toughness are improved, and the surface properties are greatly improved. Laser cladding technology solves a series of technical problems such as thermal deformation and thermal fatigue damage that are unavoidable in traditional electric welding, argon arc welding and other thermal processing processes.

Laser cladding has low dilution rate, dense structure, good combination of coating and substrate, and reliable use. As far as the current application of laser cladding is concerned, it is mainly used in three aspects: first, material surface modification, such as steam turbine blades, rolls, etc.; second, parts repair, such as wind power spindle, planet carrier, planetary gear, etc.; third, Rapid prototyping, that is, using metal powder to sinter and stack layer by layer to quickly create a model. The use of lasers can also repair damaged three-dimensional complex parts, which fully reflects the flexibility and advanced nature of laser remanufacturing technology.

At present, the laser cladding technology has developed rapidly and is becoming more and more mature, and is moving towards the stage of promotion and application. Wanshunxing laser cladding head ND451, the internal structure of the cladding head is completely sealed, which can prevent the optical part from being polluted by dust. Adopt built-in protective lens protective gas structure design, effectively protect the lens. The protective lens adopts a drawer structure, which is easy to replace. It can be equipped with various semiconductor lasers with QBH connectors. Equipped with water cooling device to improve product quality. Rich focus configuration, can be customized to meet different customer needs.