screw barrel for rubber machine from China manufacturer - Zhoushan Weida Machinery Co., Ltd.

Payment Terms:	T/T,L/C
Place of Origin:	Zhejiang, China (Mainland)


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Product Detail

Model No.: WD 028

Production Capacity: 1 set

Delivery Date: 30 days

Steel Material: 38CrMoALA,SKD61,SKD11,D2 et...

Surface Roughness Degree: Ra0.4um

Means of Transport: Ocean,Air

Packing: wooden case

Brand Name: WEIDA

Hardness after Hardening & Tempering: HB240-280

Nitrided Layer Hardness: 950-1020Hv

Advanced nitriding process
have the advantage of long lasting life, high wearability and good anti-corrosion

Screw barrel for rubber processing

Working Process :

Raw Material → Quenching & Tempering → Rough Machining → Semi finish Machining → Finish Machining → Nitriding Treatment → Bimetallic Casting → Inspection → Finish Products

Diameter of screw:D12-D300mm

L/D ratio of screw:10-50

Technical Index

Steel Material	38CrMoALA,SKD61,SKD11,D2 etc.
Hardness after Hardening & Tempering	HB240-280
Nitriding Treatment Time	≥ 96 hours
Nitrided Layer Hardness	950-1020Hv
Nitrided Layer Thickness	0.5-0.8mm
Surface Roughness Degree	Ra0.4um
Surface Hardness Degree	58-64 HRC
Screw Straightness Degree	0.015mm
Chromium-Plated Surface Hardness After Nitriding	≥ 900HB
Chromium-Plating Layer Thickness	0.05-0.10mm
Bimetallic Layer Hardness	50-65HRC
Depth Of Alloy Layer	0.8-2.0mm