The working environment of coal machinery is complex and harsh, with long equipment operation time and heavy load, especially in humid underground environments, various harmful gases, dust particles, and other problems, which can easily cause corrosion and wear on mechanical equipment, greatly shortening its service life. The main forms of failure of these devices are wear, corrosion, scratches, etc., such as wear failure of cutting teeth, scraper conveyor grooves, gears, shafts and other components, corrosion failure of hydraulic support columns, oil cylinders, piston rods, etc. The pillars, oil cylinders, and other components of hydraulic supports are currently mostly prepared and repaired using electroplating methods for surface corrosion resistance layers. Due to the low bonding strength of the coatings and the short service life, they often need to be transported from underground for disassembly and maintenance, resulting in a large installation workload and long installation cycle.

Nowadays, intelligent technology is gradually being promoted in the coal mining industry, achieving unmanned operation underground and the application of high-quality and long-term service products is an inevitable trend, which puts higher requirements on the performance and service cycle of hydraulic support columns. Applying high-efficiency, high-quality, and low-cost green manufacturing technologies can enhance market competitiveness and create long-term value growth for enterprises.

Due to long years of work in rivers and marine environments, many parts in mechanical equipment such as ships of drilling platforms and large ship cranes will be corroded and worn and need to be protected and repaired. For the preparation of wear and corrosion-resistant coatings on the surface of shaft parts, efficient surface processing technology is required; while some power equipment local wear and tears, such as iron chips and impurities in the lubricating oil system, the impact of low oil temperature or oil pressure during the start-up process of the unit, easy to cause the shaft tile and shaft diameter wear, the need for the local area of the melting and repair, suitable for the use of better flexibility of the robot automatic repair method. 

For the problems of wear and corrosion of marine machinery parts, laser cladding repair and remanufacturing technology can meet the application needs of the above situation at the same time and has been widely used in a variety of products such as marine diesel engines, marine gas turbines, steam turbines, propellers, and ship hulls.

During the cutting process of agricultural machinery equipment, the cutting tools must withstand impact and vibration loads, as well as strong friction between the workpiece and chips, resulting in frequent wear, rolling, chipping, or breakage of steel cutting tools during use, which affects machining accuracy and production efficiency, shortens the service life of the tools, and increases production costs.

Higher hardness impurities or particles in the process of machine operation will produce wear and tear on the spiral, the wear and tear of the spiral will not only affect the normal operation of the equipment, but also accelerate the wear and tear of other parts, resulting in a decline in the overall performance of the equipment, or even early scrapping. Through laser cladding technology, the spiral surface can be partially repaired to fill the defects and cracks, prolonging the service life, reducing the frequency of maintenance and replacement, and lowering the operating costs.

The printing guide roller includes a guide roller body, and the two sections of the guide roller body are respectively equipped with roller pillows and shafts. Many printing factories experience mechanical wear and chemical corrosion on their guide rollers due to prolonged operation, which in turn affects production efficiency and quality. The most direct method for collecting worn and corroded printing guide rollers is to replace the components, but the cost will increase.