Coal mining industry

1.Industry Background Introduction

The working environment of coal machinery is complex and demanding, with equipment running continuously for a long time and bearing large loads. Cutting teeth, grooves, gears, shafts and other components are prone to wear and failure, while hydraulic support columns, oil cylinders, and piston rods are prone to corrosion and failure, greatly reducing the service life of the equipment. Coal mining machinery and equipment are generally bulky, expensive, difficult to load and unload, and require a large amount of maintenance and repair work. Parts may stop running due to wear and corrosion, resulting in significant economic losses.

2.Traditional repair method - electroplating

The coating has low bonding strength, is prone to detachment, and has a short service life; Serious environmental pollution and hazardous production processes have gradually been phased out.

3.Low cost and high-efficiency laser cladding technology is widely used

Laser cladding can provide surface strengthening and remanufacturing for both new and old parts. By laser cladding hydraulic cylinders, columns, etc., the wear and corrosion resistance of the parts can be effectively improved, and the service life of the parts can be extended. Shandong Leishi high-speed laser cladding has a faster processing speed than traditional laser cladding, with a smoother and smoother surface. It only requires precision machining to be put into production, saving a lot of machining time and costs. It has become a major technical force in laser surface remanufacturing.