With the continuous rise of fuel prices and the increasingly stringent fuel emission regulations, automobile manufacturers and engine manufacturers actively adopt various advanced technologies to reduce engine fuel consumption and emission.
Positive constant power adopts advanced inner hole plasma spraying technology to spray a layer of special coating on the inner wall of the cylinder hole, and uses different coating material components to meet the special requirements of the engine, such as poor fuel quality and excessive abrasive wear, scratch or corrosion caused by exhaust gas recirculation rate (EGR).
The technology has been used in automobile, truck, motorcycle and marine engines, as well as cylinder liners of gas fuel engines, power station engines and gas compressors.
Recently, Zhengheng power successfully delivered the second batch of long-life diesel engine cylinder liners to a well-known diesel engine factory in China.
For this long-life cylinder liner, the coating material selected is cermet composite, which has the advantage of significantly reducing the friction and wear of cylinder bore wall.
At the same time, because the coating contains ceramic particles and special elements, its corrosion resistance can be further improved, and its service life will be much longer than that of the traditional cast iron cylinder liner.
Scania, a well-known foreign truck manufacturer, has already adopted the same spraying process and materials as positive constant power on its engine, realizing the myth that its truck has no overhaul for 3 million kilometers.
At the same time, because the coating contains ceramic particles and special elements, its corrosion resistance can be further improved, and its service life will be much longer than that of the traditional cast iron cylinder liner.
Scania, a well-known foreign truck manufacturer, has already adopted the same spraying process and materials as positive constant power on its engine, realizing the myth that its truck has no overhaul for 3 million kilometers.
At present, Zhengheng power has completed the technical development of products such as cylinder less aluminum alloy cylinder block, long-life diesel engine and cylinder liner. It has reached cooperation with many well-known domestic automobile manufacturers and engine manufacturers on the inner hole spraying process, and can provide customers with one-stop services from blank, machining, spraying to final honing products.
Casting – pre machining – surface roughening – spraying – finishing – honing
Post time: Nov-26-2021
