In the field of mining equipment, the research institute focuses on laser cladding remanufacturing and surface strengthening of key components such as coal mine hydraulic support columns, jacks, tunneling machine cutters, and scraper conveyors. By using additive manufacturing technology, alloy powder is uniformly melted onto the damaged surface of the workpiece, forming a high-strength, wear-resistant, and corrosion-resistant protective layer, significantly extending the service life of the repaired components.
Based on directional energy deposition technology, laser synchronous melting of metal powder/wire is used to achieve efficient 3D printing and precise repair of large metal components. The forming layer is dense and firm, and the material utilization rate is high.
Laser cladding precision forming and damage repair technology based on 3D vision intelligent guidance, achieving dense forming and reliable combination of high-performance alloy layers.
By integrating multi-source welding processes with 3D visual guidance, efficient and precise forming and high-quality repair of complex components can be achieved. The forming layer is dense and uniform, with precise and controllable dimensions.
Integrating machine 3D vision and intelligent sensing technology to achieve automatic identification and precise screening of defects before and after laser cladding repair, ensuring that the safety performance of remanufactured parts meets standards and the quality can be traced throughout the entire process.
Using corrosion-resistant and wear-resistant functional materials, a high-density protective coating is prepared by laser cladding on the inner wall of the oil cylinder and the surface of the piston rod, greatly improving the corrosion resistance, anti-wear particle wear and sealing fit performance, effectively suppressing pitting and scratches, reducing the risk of hydraulic system leakage, extending the oil cylinder repair period, and adapting to complex working conditions such as high humidity, high dust, and high corrosion underground.
Using high impact and wear-resistant strengthening materials, a high toughness and wear-resistant protective coating is prepared by laser cladding on the head and key sections of the drill rod, significantly improving the ability to resist high-frequency impact wear, fracture and deformation, effectively alleviating stress concentration, significantly extending the service life of the drill rod, reducing unplanned downtime frequency, and adapting to harsh working conditions such as strong impact and wear in mining drilling operations.
Using functionally graded wear-resistant strengthening materials, high-strength wear-resistant protective coatings are prepared by laser cladding on the key parts of the tooth head and tooth body, greatly improving the ability to resist impact wear and high-temperature softening, effectively extending the service life of the tooth, and adapting to the complex cutting conditions of high impact and strong wear in coal mines.
Using directed energy deposition (DED) additive manufacturing technology, metal powder is synchronously fed into the cutting head and key parts of the tooth body with laser as the heat source. High strength wear-resistant strengthening layers are formed layer by layer by welding on the cutting head and key parts of the tooth body, achieving precise 3D printing of the tooth body structure and efficient repair of worn parts. The forming layer is metallurgically bonded to the substrate, with a dense structure and excellent impact toughness, significantly improving the service life of the cutting teeth under high-frequency impact and strong abrasive wear conditions, effectively reducing the frequency of tool replacement and comprehensive operation and maintenance costs in coal mine underground cutting operations.
Using directed energy deposition (DED) additive manufacturing technology, corrosion-resistant and wear-resistant metal powder is synchronously fed into the oil cylinder wall and piston rod surface with laser as the heat source, and a high-density protective layer is layer by layer melted and formed, achieving precise dimensional repair and structural reconstruction of worn and corroded parts. The formed layer is metallurgically bonded to the substrate, with a dense structure and excellent resistance to pitting and abrasive wear. It effectively restores the sealing accuracy and pressure bearing capacity of the oil cylinder, greatly extending the repair period.
Using directed energy deposition (DED) additive manufacturing technology, high impact and wear-resistant metal powder is synchronously fed into the drill rod head and stress concentration zone with laser as the heat source. A high toughness and wear-resistant strengthening layer is formed layer by layer through welding, achieving precise repair and structural reconstruction of worn parts. The formed layer is metallurgically bonded to the substrate, with a dense structure and excellent impact and fracture resistance, significantly improving the service life and reliability of the drill rod under high-frequency impact drilling conditions, effectively reducing the frequency of unplanned downtime and comprehensive usage costs in mining drilling operations.
