screw 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 030

Production Capacity: 1 set

Delivery Date: 30 days

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

Nitrided Layer Hardness: 950-1020Hv

Means of Transport: Ocean,Air

Packing: wooden case

Brand Name: WEIDA

Nitriding Treatment Time: ≥ 96 hours

Nitrided Layer Thickness: 0.5-0.8mm

Screw Straightness Degree:0.015mm
Surface Hardness Degree:58-64 HRC
Surface Roughness Degree:Ra0.4um

HB240-280 screw for rubber machine

Specification of injection screw barrel:
For screw: Dia. 15-300 mm Length 300-9000 mm L/D ratio: 15-50

Working Process :

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

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

Grade List

Grade	Steel Material	Processing
Standard Grade	38CrMoALA	Nitriding 96 Hours
Bimetallic Grade	38CrMoALA	HP/HVOF Spraying
TC-A Grade	Tungsten Carbide40%	Centrifugal Casting
TC-B Grade	Tungsten Carbide25%	Centrifugal Casting
TC-C Grade	Tungsten Carbide10%	Centrifugal Casting