single screw barrel of injection and extruder machines

screw barrel, 1.38 CrmoALA Material, 2. Nitriding Depth: 0.5~0.7mm, 3. High Qulity Base Material, 4. Screw Barrel for injection - details see: https://www.machineto.com/single-screw-barrel-of-injection-and-extruder-machines-10335253

Place of Origin:Zhejiang China (Mainland)	Brand Name:LiJing	Model Number:LJ-	Steel Material:Alloy-steel of High-Quality
Screw Diameter:15mm-300mm	Technical Index:30g-25000g

screw barrel

Detailed Product Description

1.single screw and barrel
2.High Quliaty Base Material
3.Processed to drawing or to your request on output&raw materia

Single screw and barrel are used in extrusion process. Product with carefully choosing the design (barrier, maddock, spiral).

Single Screw and Barrel Ranges:

Screw Diameter	15mm-300mm
Screw Length	L/D ratio 15 - 46

Material

1 38CrMoAIA(JIS SACM645)

2 9Cr18MoV

3 42CrMoV(AISI 4140)

4 41CrA1Mo7

Heat treatment

Nitriding treatment
Electroplated hard chromium coating
Spray coating anticorrosion
Wear resistant bimetallic coating

Technical Parameter

Hardness of Nitriding	Hv900~1000
Deepness of Nitriding Layer	0.7mm-0.9mm
Surface Roughness	Ra 0.4μm
Hardness of Bimetallic Alloy	HRC 55-62
Deepness of Bimerallic Alloy	1.5~2.0mm
Screw straight tolerance	0.015 mm/m
Special treatment	Carbide coating on flight
Deepness of Titanizing Layer	0.05~0.10mm