Bimetallic Twin Conical Screw And Barrel Design For Wpc

Bimetallic Twin Conical Screw And Barrel Design For Wpc

1 . Description

Product	Bimetallic twin conical screw and barrel
Hardness after hardening and tempering	HB260°~320°
Nitrided Hardness	HV950°~1000°
Nitrided Depth	0.50~0.7mm
Nitrided Brittleness	above 2 stage
Surface Roughness	Ra0.4
Screw straightness	0.015mm
Hardess of surface chromium-plating after Nitriding	HV≥950HV
Chromium-plating Depth	0.05~0.10mm
ALLoy Depth	0.8~2.0mm
Alloy hardness	HRC56°~65°
Alloy	iron,nickel,tungsten,molybdenum

2 . Types of screw

Gradual type

mutant type

wave type

barrier type

double screen type

shunt type

separation type

exhaust type

pin type

mixed type

double-head type

three-head type

multi head type etc.

3 . Material with processing technology

Base Materials:	1)38CrMoAlA(SACM 645) 2)42CrMo(AISI 4140) 3)Cr12MoV(SKD11) 4)4Cr5MoSiV1(SKD61) 5)9Cr18MoV 6)40Cr
Bimetallic Alloy Materials:	1)Fe-based alloy 2)Ni-based alloy 3)Co-based alloy 4)Tungsten carbide
Processing Technology:	Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding Bimetallic alloy centrifugal casting

3 . Technical Parameter

Base Material	1)38CrMoAlA(JIS SACM645);2)Cr12MOV(JISSKD-11) ; 3)4Cr5MoSiV1(JIS SKD-61) ;4)42CrMo(AISI4140)
Bimetallic Alloy Materials	1)Fe-based alloy2)Ni-based alloy/Deloroalloy 3)Co-based alloy4)NiCo-based alloy 5)Tungsten carbide/Wolframcarbide
Double-alloylevel	Level A - containing Tungsten of40% Level B - containing tungsten of 25% Level C - containing tungsten of15%
Surface Treatment	Heat Treatment High FrequencyTreatment Nitriding treatment(120Hours): Depth of Nitrided Layer: 0.5-0.8mm Hardness of Nitrided Layer: 900-1020Hv(HRC56°-65°) HardChrome Plating treatment: Thickness of Hard Chrome Plating Layer:0.05-0.10mm Hardness ofHard Chrome Plating Layer: ≥950HV Nickel alloyplating.treatment: Bimetallic barrel / Cylinder: Centrifugal Casting(Inlay Alloy) BimetallicScrew: Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer: HRC55°-72° Spraying corrosion wear-resisting dual metallayers

4 . Comparsion of the output (LDPE)

Pressure is generated if resin passes over the barrier, forcing any air in the melted resin back to the feed side and effectively preventing the intrusion of air bubbles on the sub flight side. This is highly effective with resins that generate bubbles such as PS, PA, PET and EVOH.

5 . Parallel twin screw and barrel application
1)PP
2)PE
3)PVC
4)WPC
5)SHEET/PIPE/PROFILE/ FOAM BOARD
6)CRANULAR TWIN SCREWS EXTRUDERS

Bimetallic Treatment of Screw

The bimetallic screw for extruder twin screw is a kind of screw spray welding a 2~3mm-thick alloy coat on the screw flight of output area for the screw . The Bimetallic treatment has excellent corrosion resistance, abrasion resistance and high working temperature. And its useful service life is greatly improved contrast to the common nitrided screw.

6 . As per customer's demand,we can also supply below:
PVC/PE Film Blowing Screw;

Blow Molding Screw;

PS/PE/PP/ABS Sheet Extrusion Screw;

PE Aluminum Plate;

PPR Pipe Screw;

EVA Extrusion Screw;

HDPE High efficiency Screw;

PET Straps Screw;

XPS/EPE Foamed Screw;

Granulation Screw,Vented single screw etc.

Bloom(Suzhou) Materials Co., Ltd ，which located in the beautiful city of Zhangjiagang , Suzhou,China. 
Bloom Company is a technology research and development enterprises which integrats technology research and development, production and trade.It mainly dealing two types of products based on the alloy materials. Spot welding accessories and twin extruder spare parts. 

With independent research and development team, Bloom focuses on technological innovation. It has provided super wear resistance, corrosion resistance, high temperature resistant core parts for many twin screw extruder users both at home and abroad and blending modification of enterprises. With continuous pursuit of technological innovation, we committed to providing customers with high quality products and services. In the global market, Our products are widely used in all fields such as plastics, miners, energy, aviation and etc. High-quality products can be developed according to customer needs combined with the actual working conditions. Whether it is high temperature, high corrosion conditions, or high torque, high strength mechanical needs, Bloom’s products can perform the task excellently. It can achieve excellent performance, stable quality, reasonable price, timely delivery, perfect after-sales.
We will advance with the times with the management idea of cooperation, win-win, integrity and open, to provide customers better products and more efficient service. Share a brilliant tomorrow with you!

Products Scope of Bloom Alloy

Nickel and iron base  Alloy(KCF alloy, Nickel alloy)

Spot Welding Accessories(Electrodes, Cap tips , Guide Pins and so on)
Twin Screw Extruder Spare Parts
Parallel Twin Screw Extruder Parts 
Conical Screw Extruder Parts

Other Precision Alloy Materials and Parts

Service  of Bloom

Alloy Material  Self Production

Non-Standard Product Reseach and Test

Precision Machinning

Spot Welding Parts offering

Twin Screw Extruder Spare Parts Supply

Logistics Service

After sales service

Advantages of Bloom 

Experienced Engineers in Alloy Businss
More then 20 years experience in alloy materials offering

High Quality Control System

Authorized Certificates

Guaranteed Delivery and Quality

More then 20+Countries customers trust.

Bloom is engaged in offering special and high quality performance alloy and parts to the whole world, Choose Bloom, Choose a sucessful business partener!