A few days ago, vacuum plasma cladding cladding technology and numerical control equipment were successfully developed. This technology is a major innovation in the field of surface metallurgy, filling a gap in this field. This technology has great significance for improving the quality of China's machinery and equipment and has reached the international advanced level.
In the machinery and equipment industry, mechanical parts often exhibit three failure modes, namely corrosion, wear and fracture. According to incomplete statistics, the annual direct and indirect economic losses caused by wear, corrosion, scrapping, or replacement of parts and components account for about 4% of the national economy's total output value. In addition, harmful incidents, such as leaks and explosions caused by such accidents, also directly endanger the safety of personal and property. The successful development of high-binding, high wear-resistant, corrosion-resistant and vacuum plasma cladding cladding technology and numerical control equipment development achievements has changed this situation and allowed plasma fortification technology to benefit people and meet the requirements of coal mines, metallurgy, mining, power, and chemical engineering. The urgent needs of other industries. The majority of user applications and expert appraisal committees have proved that the project has successfully developed a vacuum plasma beam cladding and strengthening numerical control equipment based on the in-depth study of the theory of thermal fluid mechanics that plasma beams interact with atmospheric conditions and other external conditions. The equipment has the characteristics of uniform distribution of power density in the arc section, high stability, uniform mixing of the alloy powder and the ceramic powder injected into the plasma beam, which greatly improves the stability of the numerical control operation and the cladding process of the equipment and is novel. The project has developed a non-isometric compression plasma torch with simultaneous feed powder localization to achieve a similar cladding effect in the atmosphere and the vacuum environment, greatly improving the convenience and versatility of the equipment. This is a major innovation in the field of plasma beam surface metallurgy. The developed DRF-1 type plasma cladding special three-dimensional numerical control equipment is especially suitable for cladding large steel components, with stable and reliable operation, strong anti-interference ability, anti-deformation, high degree of automation and production efficiency, and good cladding quality. Characteristics, suitable for large-scale promotion and application. The plasma-enhanced coal mine board conveyor middle trough is tested through downhole, and the wear life is 4 times higher than that without cladding, and it is more than 1 times higher than that of hardfacing. This new technology has achieved remarkable innovation, has broad application prospects, and has achieved an internationally advanced level of overall technology, thereby reducing or avoiding the huge cost of equipment replacement caused by mechanical wear, corrosion, and fracture. The technology and equipment can be widely used in coal mines, mines, metallurgy, machinery, petroleum, chemical industry, electric power, construction, transportation, navigation, aviation, military and other more broad areas, will have great economic and social benefits.