Screw selection of imported Hitachi SKD61 steel , high temperature of 500 degree or less, vacuum hardening, the overall hard HRC52°-55°, good toughness, resistance to stress, barrel iron-based alloy material, wear Economical finish Ra0.4um; for PC, PMMA, or engineering materials fiber.
Diameter range:from 60mm to 250mm L/D ratio:16-40 ...
直径范围:Ø15mm~Ø500mm 长径比:L /D=7~55 材质:38CrMoAIA(41CrAIMo7) 调质硬度: HB280-320 螺杆直线度: 0.015mm 氮化硬度: HV850-1000 氮化深度: 0.45~0.7mm 氮化脆性:2级 表面粗糙度:≤Ra0.4 ...
The extruder open screw barrels are used in the feeding section, the natural exhausting section and the vacuum exhausting sections. Depending on the materials produced, the placement of the open barrel is different. The opening shapes of twin barrel screw can be square, ...