In order to suit for high speed and strong strength working condition, the manufacturers will choose quenching after rough machining the gears to obtain high hardness .The hardness of the gear after heat treatment usually is about HRC60,and...

All we know, cbn inserts are mainly used for machining high hardness cast iron and hardened steel industry, and common cast iron also will use cbn inserts. Especially for rough machining with CNC Lathe, cbn inserts are more widely used. Gra...

Part 1 The meaning of thermal spraying Thermal spraying is a series of processes, In which process finely dispersed metallic or nonmetallic coating materials with a molten or semi-molten state deposite on the prepared surface of the substra...

Impeller is one part of slurry pump, usually use High Chromium cast iron as main materials, Cr26 is one of the common materials. Every impeller include 5~12 pieces blade, machining these blades is strong interrupt cutting process, which wil...

Part 1 The characters of gray cast iron (1) Poor strength; (2) Hardness: a range in tensile strength. (3)Low notch sensitivity; (4) Good reduction shock; (5) Good anti-friction properties. As its low cost, the production process is simple,...