The nitrided layer can reach 0.05-0.07mm. The hardness can reach HV950±50or above, equivalent to HRC68~69.
The general advantage of Nitrided Conical Twin Screw: it can improve corrosion resistance and wear resistance.
The main benefits of Nitrided Conical Twin Screw: improve plasticizing rate and increased production.
What is the application for Nitrided Conical Twin Screw ?.
blow film extrusion machines, plastic sheet extrusion machines, wire &cable extrusion machine.
Product |
Material Base |
Treatment |
Technical Parameter |
Application |
Screw |
38CrMoAlA |
Nitriding |
Tempering hardness: HB260-280 |
used for ordinary acid-free low particle size and does not contain GF. Such as ABS\PP\PS, etc. |
Screw |
38CrMoAlA |
Bimetallic Ni-based alloy |
Alloy thickness:≥1.5mm |
used for adding acid plastic with GF less than 30% |
Screw |
42CrMo |
Bimetallic Ni-based alloy+ElectroPlating |
Alloy thickness≥1.5mm |
transparent material/ color mixing material |
Screw |
Fully hard powder metallurgy steel |
vacuum quenching process |
Quenching hardness: HRC57-59, |
suitable for engineering plastics with 35% GF or less, |
Screw |
Full hard powder metallurgy steel |
vacuum quenching process |
Quenching hardness: HRC59~61 |
suitable for engineering plastics with 45% GF or less |