CONICAL TWIN SCREW&BARREL:
AVAILABLE DATA AS FOLLOWS:
Φ15/Φ30, Φ25/55, Φ35/Φ75, Φ40/Φ83, Φ48/Φ112 Φ48/117,
Φ50/105 Φ50/110, Φ51/Φ105 Φ51/Φ120, Φ55/Φ110 Φ55/Φ125,
Φ58/Φ125, Φ60/Φ125 Φ60/Φ129, Φ65/Φ120 Φ65/Φ132, Φ68/Φ147,
Φ70/Φ150, Φ74/Φ156 Φ74/Φ162, Φ80/Φ143 Φ80/Φ156 Φ80/Φ162,
Φ86/Φ177, Φ92/Φ184 Φ92/188, Φ95/Φ193, Φ105/Φ203
PURPOSE: WPVC,WPE, super high molecular sheet,1:2 high culcium buckle,
50%-400% calcium compound pipe,50%-300% calcium compound profile,
flexible PVC sheet. PP,PE,ABS PVC,Pelltizer,Pipe,Sheet,ETC.
Base materials:
1) 38CrMoAlA (JIS SACM645) 2) 42CrMo (AISI 4140) 3) 4Cr5MoSi V1 (JIS SKD-61)
4) DC53 (JIS G4404) 5) Cr12MOV (SKD11) 6) 9Cr18MOV
Bimetallic alloy materials:
1)Ni-based alloy/Deloro alloy
2)Fe-based alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Bimetallic Alloy level | Level A - containing Tungsten of 40% Level B - containing tungsten of 25% Level C - containing tungsten of 9.5% |
Processing technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Hard-chrome electroplating
Technical parameters:
Nitriding layer depth: 0.5-0.8mm
Nitrided Hardness: 900-1000HV (HRC 55-65)
Nitrided brittleness: Less than grade 1
Surface roughness: Ra 0.4
Linearity of screw: 0.015mm
Bimetallic layer depth: 3 mm
Bimetallic layer hardness: HRC 55-70
Hard-chrome plating hardness after nitriding: ≥ 950HV
Chrome-plating layer depth: 0.03-0.1mm

