Bi-metal Drilling Mud Pumps Liner
It is closely combined by the inner and outer layers. The outer sleeve is forged and wear-resistant, adopting centrifugal forging technology; the inner sleeve is high chromium, wear-resistant and corrosion-resistant, and the hardness reaches 62 Rockwell C after heat treatment. Outer Sleeve: Forged 45#steel, tensile strength σ b > 610mpa, yield strength σ s > 450MPa, elongation ﹥ 17%, hardness hb180-200. Inner sleeve: high chromium cast iron (centrifugal casting), annealing hardness HRC ≤ 40, quenching hardness hrc60-67.
Our company strictly controls the size of bimetal cylinder liner within the tolerance range to ensure easy installation, high smoothness of inner sleeve, wear resistance, corrosion resistance and long service life, which is suitable for all kinds of harsh working environment.