Material:38CrMoALA
Hardness after hardening and Tempering:HB260°~320°
Nitrided Hardness:HV950°~1000°
Nitrided Depth:0.50~0.7mm
Nitrided Brittleness:above 2 stage
Surface Roughness:Ra0.4
Screw straightness:0.015mm
Hardess of surface chromium-plating after Nitriding:HV≥950HV
Chromium-plating Depth:0.05~0.10mm
ALLoy Depth:0.8~2.0mm
Alloy hardness:HRC56°~65°
Alloy:nickel,tungsten,molybdenum
 
Tel:+86-0580-8052262
Fax:+86-0580-8051690
E-mail:screw@zszhongsu.com
Add:c-no.7 xihou industrual agglomeration,jintang town,dinghai district,zhoushan city,zhejiang province
Home > Universal Screw >> Rubber Screw Barrel

cool feeding rubber screw and barrel:
speicification:Ф40-Ф300MM
Large aspect ratio:L/D=8-20

hot feeding rubber screw and barrel:
speicification:Ф30-Ф250MM
Large aspect ratio:L/D=4-8

pin rubber screw and barrel:
speicification:Ф60-Ф250MM
Large aspect ratio:L/D=12-18

types of screw:
For good plasticizing effect,we have different design of screw barrel to meet customer's demand.Gradual type,mutant type,wave type,barrier type,double screen type,shunt type,separation type,exhaust type,pin type,mixed type,double-head type,three-head type,multi head type etc.

screw material:

raw material: The finished product Processing requirements:
38CrMoAlA,SACM645,42CrMo Nitriding treatment
42CrMo,AISI 4140 hard chrome coated layer
Cr12MoV,SKD11,SKD61,YXMI,EFZD,DC53,SKH55,SKH59,SKH58,SKH51,SKH—¬9,ASP60,ASP30,ASP25,CW6Mo5Cr4V2 high frequency quenching
4Cr5MoSiV1,SKD-61,SKD-11 Sparying bimetal alloy layer and nitriding treatment
YPT72,DAC-MAGIC,4 Cr5MoSiV1 Whole bimetallic cladding stainless steel
HPM38,SI36,SUS440,9Cr18MoV High frequency quenching
GHII3 Airset in high temperature

The material of barrel:

raw material: The finished product Processing requirements:
38CrMoAlA,SACM645 Nitriding treatment
Cr12MoV,Cr12 high frequency quenching
38CrMoAlA,SACM645,40Cr,AISI4140,42CrMo Bimetallic of The inner hole centrifugal casting
GHII3 Airset in high temperature

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