Nitration heat treatments used in the manufacture of Screw Barrel screw barrel hardness has been investigated HRC55 ° -65 °, with high hardness, anti-corrosion property. XPS, film extruders (bodinose), injection, PE aluminum-plastic sheet, fiber, chemical equipment, EPE foam material, waste plastic granulation, PE pipe, WPC etc. Bi Metal technology increases the heat treatment by 5-7 times in line with these existing values. With its WC-10 tungsten carbide alloy coating technique, its high hardness feature, high corrosion resistance and high temperature resistance, increases the service life due to the hardness of the alloy layer. metal technology PVC, PE and high calcite use, suitable for engineering plastics

The thickness of the alloy hardness surface on a metal process screw sleeve carries the alkali resistance and corrosion resistance alloy 1.5-3.5mm, to higher dimensions than the standard value. Especially, high quality surface hardness in PA nylon and 10% -20% fiberglass, PVC, PC and increases the resistance 2-3 times usage time

30CrMoVg, 34CrAINi7, X35CrMo17, X22CrNi17 material can also be used in process