The fully hardened SCREW IS DEVELOPED TO overcome the rapid failure of the screw in the harsh working conditions of super wear and high corrosion plastic. The tool steels with different properties are selected to obtain the wear and corrosion resistance of the screw comprehensively through the efficient and stable heat treatment process, and exponentially extend the service life of the screw.
The name of the feature
YDT2
YDT3
YDT1
Partial hardness of screw edge（HRC）
56-60
58-62
56-60
Wear resistance
Optimal
Good
Optimal
Corrosion resistance
Good
Optimal
Good
Temperature range（℃）
≤400
≤450
≤400
Applicable resin types
Small viscosity resin, thermosetting resin, bakelite, and engineering plastics with less than 35% glass fiber
Little viscosity, corrosion resistance and wear resistant resin
Less viscous, wear resistant resin
General purpose resins and engineering resins containing less than 50% glass fiber, as well as special engineering plastics
General purpose resins and engineering resins containing less than 25% glass fiber
