Thermal spray coatings, corrosion-resistant principle is: (1) a sacrificial anode principle will be to protect the metal and potential more negative active metal phase coupled, both the electrode potential, can constitute the original battery, the current is from the cathode current of the cathodic protection; ② than the substrate corrosion-resistant material sprayed on the surface of the substrate in order to achieve the purpose of protecting the substrate. 
 Room temperature, the iron and steel materials resistant to atmospheric conditions, acid, alkali, salt corrosion, the application is the expense of cathode principle, the common sacrificial anode material of Zn, Al, Zn-Al and Zn-Al-Mg alloy, commonly used electric arc wire spray method preparation. Zn, Al, Zn-Al and Zn-Al-Mg alloy coated steel for long-lasting protection, not only is the cathodic protection, coating with good corrosion resistance. In addition, the compact oxide film formed on the surface of the metal particles in the coating also played a role in anti-corrosion. In the industrial and urban air, iron and steel materials, corrosion consumption of about 400 ~ 500g / (m2-a), the corrosion depth of 0.064mm / a; compared with the loss of Zn is 40 ~ 80 / (m2-a) , the corresponding depth of 0.01mm / a. In the case of unprotected carbon steel year average corrosion rate higher than the Zn 5 to 20 times, 100 times higher than that of Al. Note: Zinc anti-corrosion spray, arc spray, spray wire, steel corrosion, plasma spray dryer spray. 
 Deep mechanical source brushing technique: 
 A variety of mechanical, lifting and transport equipment solid wear requires replacement of the parts can be power brushing technique to repair to make it back to the original size precision. 
 New parts, due to the processing of ultra-poor or not reach the precision, power brushing technique to repair to dimensional tolerances precision technology requirements. 
 Product components and machinery and equipment wear parts in the use of the first repair, to a certain life cycle is worn to the limit, If you have a repair value can be a second repair. 
 4, large-scale equipment such as drum, rotor, mill, cutting machine, the drive shaft and so on-site repair, thereby reducing the large number of human and material waste, reduce the maintenance period. 
 5, some products need to strengthen the hardness, improving wear or corrosion resistance can be resolved by electric brush plating technology. 
 The technical expertise to repair all types of journal bearing bore, motor cover, a variety of cylinders, piston rod, gearbox, rotor shaft, paper, printing and other industries, repair time, repair size (thickness) of 0.8- 10mm.