Compared with metal cylinder liner, ceramic cylinder liner has the following advantages:

1. 5-10 times longer service life than metal cylinder liner;

2. It has the advantages of wear resistance, corrosion resistance, high pressure resistance, high temperature resistance, high strength and high hardness;

3. Reduce the transportation cost, maintenance cost, labor cost and storage cost of drilling work;

4. The ceramic cylinder liner is more flexible, has longer service life, saves more lubricating water and reduces piston wear.