アルミナセラミックシリンダーライナー

Alumina ceramic cylinder liner is a high-performance ceramic product, which is mainly made of alumina, zirconia, yttrium oxide, lanthanum oxide and magnesium carbonate materials mixed in specific proportions, through ball milling, granulation, molding and sintering processes.

Material
Alumina: 60~ 70%
Zirconia: 20~ 30%
Yttrium oxide: 1.2~ 1.5%
Lanthanum oxide: 0.5%
Magnesium carbonate: 3~ 3.3%

生産工程
The alumina ceramic cylinder liner is made by ball milling mixing, granulation, molding and sintering, which ensures the uniform microstructure and high surface gloss.

主な特徴
高い硬度と耐摩耗性： Alumina ceramics are second only to diamond in hardness and have good wear resistance, capable of withstanding friction and wear in motion.
高温安定性： able to maintain the stability of structure and performance in high temperature environments, suitable for working under high temperature and high load conditions.
化学的安定性： It can resist the attack of most acids, alkalis, salts and other chemicals, and is not prone to chemical reactions.
熱膨張率が低い： It can maintain dimensional stability at high temperatures, reducing the impact of thermal stress on the cylinder liner.
耐食性： It has good acid and alkali corrosion resistance and is suitable for working in highly corrosive liquid environments.

応用分野
Alumina ceramic cylinder liners are mainly used in reciprocating engines or pumps, located in the cylinder block or engine block, to accommodate the reciprocating motion of the piston. It can tightly fix the piston and maintain the shape and size of the cylinder. By forming a sealing ring groove, the piston is separated from the cylinder wall to prevent gas leakage and fuel entry, thereby improving the efficiency and performance of the engine.

Extend service life: 5-10 times longer than metal cylinder liners.
Reduce costs: Reduce transportation costs, maintenance costs, labor costs, and storage costs for drilling operations.
Save lubrication water: save lubrication water and reduce piston wear.

Alumina ceramic cylinder liner is widely used in various high temperature, high pressure and corrosive environments due to its excellent physical and chemical properties. It is a high-performance industrial ceramic product.