Bimetallic conical twin screw barrel 1.Material:special alloy steel 2Good customer service 3Processed to drawing or buyer'

 Bimetallic conical twin screw barrel

Specification:

35/76, 45/90, 45/100, 50/105, 51/105, 55/110, 55/120,58/124, 60/125, 65/120, 65/132, 68/143, 70/135,70/140, 75/150, 80/143, 80/156, 92/188, 95/191, 105/191, 100/200

The above are standard specifications , The compression ratio of screws can be designed according to different products and ingredients. 

Material of barrel

raw material

The finished product processing requirements

38CrMoAlA,SACM645	Nitriding treatment
Cr12MoV,Cr12	Alloy steel
38CrMoAlA,SACM645, 40Cr,AISI4140,42CrMo	Bimetallic of the inner hole centrifugal casting
GHII3	nature hard after high temperature

Material of screw

raw material	The finished product processing requirements
38CrMoAlA,SACM645,42CrMo	Nitriding treatment
42CrMo,AISI 4140	Hard chrome coated layer
4Cr5MoSiV1,SKD-61,SKD-11	Spraying bimetal alloy layer and nitriding treatment
HPM38,SI36,SUS440,9Cr18MoV	high frequency quenching
GHII3	nature hard after high temperature

scope of application : PVCwood-plastic., PE wood-plastic,,Super high polymer board,1/2 high Calcium buckle,50-400 high Calcium pipe,50-300 high Calcium Profile,soft PVC sheet, PVCfoaming boardetc.

PP,PE,ABS,PVC,raw material pelletzing,plastic pipe,plastic profile,and plastic sheet etc.

Technical Parameters

SCREW

1) Nitride Depth: 0.55-0.7mm

2) Nitride Hardness: 850-960HV

3) Surface Roughness: Ra≤0.8um

4) Screw Straightness: 0.015mm

5) Bimetallic Hardness: HRC50-62

6) Bimetallic Depth: 1.5-2.0mm

BARREL

1) Nitride Depth: 0.55-0.7mm

2) Nitride Hardness: 960-1020HV

3) Surface Roughness: Ra≤1.6um

4) Bimetallic Hardness: HRC50-65

5) Bimetallic Depth: 1.5-2.0mm