A few days ago, WILA Laser used laser cladding technology to manufacture the spindle bearing bit of a decanter centrifuge from Shanghai Dow Chemical, which was well received by customers.

The camshaft is an important transmission component of the fuel injection pump, which determines the oil supply interval and pump oil pressure of the whole machine and the overall service life of the fuel injection pump. After the camshaft is worn, it will cause abnormal fuel supply intervals, resulting in unstable operation of the diesel engine and insufficient overall engine power.

WILA Laser can provide repair services for metal wetted parts damaged by wear and corrosion in the working environment. The metal parts are repaired by silicon carbide composite materials, so that they have good wear resistance and corrosion resistance, and effectively extend the working life.

After a large number of basic experiments and engineering cases, WILA can provide different coating schemes according to the different working conditions of customers to form a silicon carbide lining on the surface of the metal flow parts that the flow parts have good wear resistance and resistance. Corrosion performance.

In hydropower stations in different basins, there is widespread abrasion and damage to the flow-through components of turbines, threatening the safe and economic operation of the units.

Generators are indispensable equipment for all power companies in the form of power generation, and an important part of power plants. With the continuous development of high-parameter, high-power, and large-capacity units, especially the development of thermal power generation, the rotor, The journal requirements are getting higher and higher due to iron filings and impurities in the lubricating oil system; during the start-up of the unit, due to the influence of low oil temperature or oil pressure, the oil film is not formed and the bearing bush and journal are worn.

WILA uses the LDM2500-60 semiconductor all-solid-state laser and adopts the synchronous powder feeding iron-based alloy powder method to improve the surface of the high-speed train ER8 wheel by laser cladding to increase its wear resistance and hardness. The orthogonal test selects the relatively superior The process parameters. Using JSM-6360LA scanning electron microscope, Bruker D8ADVANCE X-ray diffractometer, XHV-1000Z digital microhardness tester, M-2000 friction and wear tester, the microstructure and performance of the alloy coating The bonding strength of its interface is tested. The results show that the optimal process parameters are P=1.6k W, v_s=400 mm/min, v_f=25 g/min. The hardness of the coating reaches 444 HV, which is 1.42 times that of the base ER8 steel. Compared with the base material, Its relative wear resistance is as high as 2.1.

Laser cladding technology is mainly used in the surface treatment of large high-value parts, especially in the surface treatment of large iron-based rotating parts. At this stage, for the cladding of the outer surface of the part, the related technology has become mature. The laser cladding of the inner surface of the thin-walled part by WILA is a major breakthrough in this technology.

The main shaft of a steam turbine is a shaft that connects the runner of the steam turbine to the rotor of the generator and transmits torque. Long-term use makes the shaft diameter severely worn, and the size becomes smaller and cannot be used normally. By using laser cladding, the shaft diameter can be restored to the original design size, the service performance and life of the parts can be restored, and the economic benefits can be improved.