conical double screw barrel high calcium pvc pipe screw cyli from China manufacturer

Product Detail

Model No.: shenglong

Production Capacity: 3000 set/month

Delivery Date: 25-35days

Place of Origin: Zhejiang,China (Mainland)

Brand Name: shenglong

Steel Hardness after hardening&tempering: HB280-320

Nitrided case depth: 0.45-0.7MM

Design: WPC PVC. PE.high Calcium

Means of Transport: Ocean,Land,Air

Packing: wooden case

Model No: shenglong

Plastic Type: PVC

Steel material: 38CrMoAla,SACM645,SKD61,GH1...

Nitriding hardness: HV900

Surface Roughness: Ra0.4

Nitride double parallel screw cylinder for recycling extrusion
Vacuum nitriding,quenching,chroming,bimetallic
Wear-proof

Nitride double parallel screw cylinder for recycling extrusion

Double parallel screw cylinder
Screw Diameter : 55/2,65/2,70/2,80/2,88/2,90/2,100/2,110/2,130/2...
Application : Pvc water pipe. drainage pipe. pe film. wpc profile,pvc cable,pe pellet...
Plastic processed : PVC PP PE HDPE LHDPE PET WPC, etc.
Technical Parameter
Nitride Case Depth	0.5mm-0.8mm
Nitride Hardness	950-1150HV
Nitride Brittleness	≤Grade One
Surface Roughness	Ra0.4um
Screw Straightness	0.015mm
Alloy Hardness	HRC58-75
Alloy Depth	0.8mm-3.5mm
Chromium Coating Thickness	0.025~0.10mm
Material & Technologies
SKD61(H13)	Quality 38CrMoAIA (41CrAIMo7)
Gr12MoV	Quality Duplex Stainless Steel
42CrMo	Quality Powder Metallurgy Materials
40Cr	Hard Metal Cold/Thermal Spraying Technology
Zinc 3# Steel	Advanced Nitriding Technology
Anti-corrosion and Wear-resisting Duplex Metal Spraying Technology
Technological Process
1.Rough Machining	2.Quenching and Tempering
3.Finish Machining	4.Nitriding
5 Sprey conating Bimetallic	6.Screw polishing

REMARK:

We are able to take mapping, design for clients and make products as per customer's drawing or sample excellently , also can help customer to repair the old screw and barrel by useing bimetallic-alloy process
Screw structure, compression ratio and material can be changed according to different products and output.
Technological Process can be chosed acoodring to your requirments.
Commonly used materials: 38crMoAIA, nitrogen treatment . Various high quality alloy steels , according to different usage, the choose for alloy is different, some require for abrasion-resistant while some require for corrsion-resistant. For standard, we have Fe-based, Ni-based, W2C alloy,Tunsten alloy etc for choice

The foreign material we used as following:

1. Germanysteel, GH113 ,2250 ,2842 ,1.8509 ,1.442 ,1.6582 ,1.6523 ,1.2080,1.4542,

2. USA steel, P20,420,L6,H13,W110,D3,A2,D6,O1,S1,M35,8620,3115,K52440

3. Sweden steel, 718S,718H,S136,S136H,STAVAX,ASP-23,ASP-30

4. Australia Steel, M202,M300,W302,K460,W300,K900,K100,W321

5. Hardnesssteel, YG6X,YG 6A,YG 6,YG8N,YG8,YG8C,YG11C,YG 15,YT5,YT14,YT30

6. Japan Steel, SKT 4,YXM 4,YXM 42,SNC 815,SK -3,SKS 3,and etc.