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Piston ring coating: When the piston ring is working in the engine, it should be in contact with the cylinder wall in the environment of high temperature, high pressure, high speed and poor lubrication conditions. By spraying molybdenum-based coating on the surface of the piston ring through thermal spraying technology, the wear resistance, friction reduction and oil storage of the piston ring can be improved, the friction coefficient between the piston ring and the cylinder wall can be reduced, the wear can be reduced, the power output and fuel economy of the engine can be improved, and the service life of the piston ring and cylinder can be prolonged.
Valve seal surface coating: During the opening and closing of engine valves, the valve seal surface should bear the scouring of high-temperature gas and frequent impact loads. Thermal spraying of cobalt-based alloys, nickel-based alloys and other coatings can enhance the high temperature resistance, wear resistance and corrosion resistance of the valve sealing surface, ensure good valve sealing, and improve the reliability and durability of the engine.
Cylinder block coating: For some high-performance engines or aluminum alloy cylinder blocks, in order to improve the wear resistance and oil storage of the inner wall of the cylinder barrel, thermal spraying technology will be used to spray iron-based, molybdenum-based and other coatings on the cylinder inner wall. These coatings provide good tribological properties, reduce wear between the piston and cylinder wall, improve engine tightness, reduce oil consumption, and improve overall engine performance.
Synchronizer gear ring coating: The synchronizer gear ring in the automobile transmission needs to rotate synchronously with the gear and achieve smooth meshing during gear shifting, and bear large friction and impact forces. Thermal spraying copper-based, molybdenum-based and other coatings on the surface of the synchronizer gear ring can increase the wear resistance and friction coefficient of the gear ring, make the gear shift smoother and faster, reduce the impact and wear of the gear shift, and improve the shift quality and service life of the transmission.
Transmission shaft coating: In the process of transmitting power, the spline part of the transmission shaft is prone to wear and corrosion. Thermal spraying wear-resistant and anti-corrosion coatings, such as zinc-aluminum coating, ceramic coating, etc., can protect the spline of the transmission shaft, improve its wear resistance and corrosion resistance, ensure the reliability of power transmission, and reduce the problems of transmission efficiency reduction and abnormal noise caused by spline wear.
Shock absorber piston rod coating: The shock absorber piston rod should constantly move up and down in the shock absorber barrel when working, which requires good wear resistance, corrosion resistance and low friction coefficient. Thermal spraying hard chrome coating, ceramic coating, etc., can improve the hardness and finish of the piston rod surface, reduce frictional resistance, reduce wear and corrosion, ensure the stable performance of the shock absorber, prolong the service life of the shock absorber, and improve the driving comfort and handling stability of the vehicle.
Brake disc coating: The brake disc generates a lot of heat during the braking process of the vehicle, while at the same time subjecting to the friction of the brake pads. Thermal spraying ceramic coatings, metal-based composite coatings, etc., can improve the high temperature resistance, wear resistance and thermal fatigue resistance of the brake disc, reduce the thermal deformation and wear of the brake disc, reduce the brake noise, and improve the reliability and safety of the braking system.
Turbocharger coating: The turbine blades and compressor wheels of the turbocharger are subjected to high temperatures, high pressures and complex air currents when rotating at high speeds. Thermal spraying high-temperature resistant alloy coating, ceramic coating, etc., can improve the high temperature resistance, oxidation resistance and erosion resistance of blades and impellers, ensure the stable operation of the turbocharger under harsh working conditions, and improve the supercharging effect and power performance of the engine.
Exhaust system coating: The exhaust pipe, catalytic converter and other components in the automobile exhaust system will be exposed to high temperature and corrosive exhaust gases when working. Thermal spraying ceramic coating, stainless steel coating, etc., can play a role in heat insulation and anti-corrosion, reduce the heat loss of the exhaust system, protect the exhaust system components from corrosion, prolong the service life of the exhaust system, and help to improve the performance of the engine and the exhaust purification effect.
