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Extruder single screw barrel

Product details

Specifications:

Screw diameter: Ø 15 Ø 300

Length diameter ratio: 15-46

 

Product type:

Screw for different plastic products can be selected: ordinary type, pin type, barrier type, separation type, exhaust type, etc

Base material:

1)38CrMoAlA(JIS SACM645)

2)42CrMo(AISI 4140)

 

 

Treatment process:

heat treatment

Nitriding treatment

 

Technical parameters:

Nitriding depth: 0.50mm-0.80mm

Nitriding hardness: 900-1000HV

Nitriding brittleness:<=Grade 1

Surface roughness: Ra 0.4

Screw straightness: 0.015mm

Hardness of chromium coating on the surface after nitriding: ≥ 950HV

Chromium coating thickness: 0.025~0.085mm

Double alloy depth: 3mm