Ningbo CAEP-Lituo Superfine 
Materials Co., LTD.

Search

NEWS

/
/
/
Application of laser cladding in repair of power generation equipment in power industry

Application of laser cladding in repair of power generation equipment in power industry

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2020-07-07 10:56
  • Views:

(Summary description)

Application of laser cladding in repair of power generation equipment in power industry

(Summary description)

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2020-07-07 10:56
  • Views:
Information

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

      In the power industry, the distribution of power equipment is large and uninterrupted operation, and its parts have a high probability of damage. The components of power generation equipment are subjected to the test of gas, high temperature, high pressure, and corrosive media to varying degrees in the operating environment. Long-term used equipment may be partially damaged due to aging, such as impellers, water turbines, and axles in wind/hydro power equipment. In order to extend the service life of expensive production equipment, surface remanufacturing technology can be used to repair them, especially The blades used in generator sets are often extremely expensive. Reinstalling and reusing the repaired blades will greatly reduce the power generation cost of the power plant.

       Laser cladding technology is an important method of material surface modification technology. It uses high-energy density laser beams to quickly melt alloys with different compositions and properties and the surface of the substrate. The formation on the surface of the substrate has completely different composition and composition from the substrate. The rapid solidification process of the high-performance alloy layer. Under rapid heating, the substrate is minimally affected by heat and has no deformation. The molten layer alloy forms a self-contained system with compact structure, refined grains, increased hardness and toughness, and greatly improved surface properties. Laser cladding technology solves a series of technical problems such as thermal deformation and thermal fatigue damage that are inevitable in thermal processing such as traditional electric welding and argon arc welding.

      Laser cladding has low dilution rate, compact structure, good combination of coating and substrate, and reliable use. From the current application of laser cladding, it is mainly used in three aspects: one is the surface modification of materials, such as steam turbine blades, rolls, etc.; the second is parts repair, such as wind power main shafts, planet carriers, planetary wheels, etc.; the third is rapid Prototype manufacturing, that is, using metal powder to sinter layer by layer, and quickly create a model. The use of lasers can also repair damaged three-dimensional complex parts, which fully reflects the flexibility and advancement of laser remanufacturing technology.

   Laser cladding technology is one of the important supporting technologies of green remanufacturing technology, and it is a high-tech in line with sustainable development strategies. Chinese scientists are at an advanced level in basic theoretical research and have made great contributions to the development of laser cladding technology. But on the other hand, the application level and scale of laser cladding technology cannot yet meet the needs of the market. It is necessary to solve the key technologies in engineering applications, research and develop special alloy powder systems, develop special powder conveying devices and technologies, systematically study process methods for damage-free repair, establish quality assurance and evaluation systems, increase efforts, and cultivate engineering applications It is believed that the competition in the manufacturing market is becoming increasingly fierce, and the laser cladding technology is promising.

Scan the QR code to read on your phone

Related news

There is currently no information to display
Please add data record on website background.

Get in Touch

Username used for comment:
底部留言
Description:

©2020  caep-Lituo.com  Inc. All Rights Reserved.  
浙ICP备16031534号-1  Powered by www.300.cn