Through the application practice comparison analysis, the laser cladding has the following properties on resisting wear and corrosion.
◆ High hardness:the hardness of the laser cladding coatings are up to 1200-1500HV,which is far higher than thermal spraying(600-800HV),surfacing(500-650HV),and also the highest hardness of impurities in the coal(about 1000HV).
◆ Metallurgical bonding:Laser cladding is used to realize the integration of the cladding layer and the substrate, the binding strength is more than 10 times the thermal spraying coating, the problem of the shedding of wear-resistant coating was eliminated.
◆ Small heat affected zone:The influence of the coating process on the substrate heat influence zone has a depth of 0.2-0.3mm, that makes the original structure and mechanical properties of the substrate stay untouched.
◆ High thermal conductivity:The thermal conductivity is comparable to stainless steel, which is highly superior than other coatings. The high thermal conductivity ensures the coating to have a minimal impact on heat transfer efficiency.
◆ Reliable quality:the laser cladding process is fully automated, which provides stability and reliance to the product.
Liu Zongde, professor and doctoral supervisor of the College of Energy and Power Engineering, North China Electric Power University, is the director of the Institute of Micro and Nano Surface Technology. He has won the second prize of national scientific and technological progress, the innovation prize of China International Industrial Exposition, the first prize of ministries, and the third prize.....MORE
Beijing Huadiandegao Technology Co., Ltd. was founded in 2013, is now a state-level high-tech enterprise, is a professional high-tech enterprise, focusing on the development and application of high-energy laser cladding high-temperature wear-resistant technology, technology has won a n...MORE>>