30mm Bimetallic Nitrided Conical Twin Screws Spare Parts

                                              Bimetallic Nitrided Conical Twin Screws For WPC PVC PE Industry

1.Product Introduction

Conical twin-screw extruder is composed of barrel, screw ,gear transimission system,measurable feeding,vacuum system,heating,cooling and electronic control components.

It is mainly used in plasticizing,extruding and forming PVC pipe ,plate,sheet,film,profile,and granule,etc.

2.Main Advantages

1– Low shearing rate, uneasy degradation,plasticization uniform and agglomeration.

2– Reliable quality ,wide application range and long servicing life.

3– Automatic temperature control, vacuum gas exhaustion, oil cooled screws.

4— forced feeding and self-cleaning mechanism.

3.Main Specification

4.Bimetallic Conical Screw Parameter

Basic Steel: 38CrMoAIA

Heat treatment hardness: HB260°~320°

Nitriding hardness:HV950°~1000°

Nitriding depth: 0.50~ 0.7mm

Nitriding brittleness:≤ grade 2

Roughness:Ra0.4

Screw straightness:0.015mm

Chrome plating hardness:≥950HV

Chrome thickness: 0.05～0.10mm

Bimetal depth: 1.0～2.0mm

Bimetal hardness:HRC56°~65°

5.Bimetallic Special Materials

hot processed steel: 1.2344,H13,W360,SKD61,

cold processed steel: 1.2379,K340,D2,DC53,SKD11,W110

HSS:1.3343,1.3243, SKH51,SKH55,

HIP Powder HSS:CPM9V,SK739,SK726,SK742,GH113

Screw flight top use Stellite plasma alloy welding, alloy types: cobalt base,nickel base, iron base alloy.

We use special alloy powders being sprayed and welded on the screw’s ridge,
and we use different alloy and welding methods for the screw of different functions.

6.Production Show

7.QualityControl

We always adhere to the principle of quality first and service first, and strictly control the quality of every product that leaves the factory to ensure the interests of customers to the greatest extent possibly.

8.Other Similar Products We Can Offer

Single screw extruders’ screws and cylinders: with diameter 15-940mm; Length-diameter ratio 1:8-1:60

Injection molding machines’ screws and cylinders: 15G-25000G series

Twin-screw extruders’screws and cylinders:diameter 25-200mm

Single screw categories: screen type, separated type, exhausting type, dowel type, double-end type, pelleting type, and chemical fiber screws.

Twin screw categories: ordinary type, cone type, hypercone type, and pelleting type.

9.Export Experience
Our main business is foreign trade, and currently we have served over 30 customers in over 10 countries. With excellent products, strict quality control, and first-class service, we are having more and more high-quality customers now.
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