Ceramic linersCeramic Liners have better performance than metal liners in wear-proof,corrosion resistant and service life. Ceramic liners have reduced the drilling cost and improved the labour intensity in locale .So ceramic liners are the frist choice of upgrade high-voltage mud pump liners.The material of ceramic liner is the most advanced international increased flexible zirconium.The fracture toughness is K 10～15MPa (10 times valve of traditional ceramic),bending strengh is σ 600～800Mpa,Weber coefficient is m18.The specification size is （Φ150～180×310～440mm）.
