Screw&Barrel For Rubber Machine
Cool feeding rubber screw and barrel
▪ Speicification ：∅40-300mm
▪ L/D=8-20
Hot feeding rubber screw and barrel
▪ Speicification ：∅30-250mm
▪ L/D=4-8
Pin rubber screw and barrel
▪ Speicification ：∅60-250mm
▪ L/D=12-18
▪ The thickness if nitride layer:0.5mm-0.7mm
▪ The stiffenss of surface :HV900-1000
▪ The straighteness of screw :0.015mm/m
▪ The surface degree of finish:0.4Ra/μm
▪ The hardness of alloy layer:HRC>65
▪ The thickness of alloy layer:1.2mm-2.0mm
▪ The hardness of chromate treatment:HV>850
▪ The thickness of chromate treatment:0.03-0.06mm
