The Bimetallic Screw And Barrel

Product category: bimetallic hole centrifugal casting barrel
Working Range: inner diameter 15mm-500mm, effective
length:80000mmprocessing technic: HP/HVOF+Metallurgical Bonding
alloying component: Ni+Cr+Wc and so on
hardness scale: HRC62-64
adhesion power:>126MPA
straightness:0.015mm/m
surface roughness: Ra0.4um
Alloy nameplate: SwedenProduct note: Patent all alloy sintering technology, super wear resistance, super corrosion resistance, it is suitable for halogen-free material

Alloy classification

A -iron alloy cylinder

B-nickel alloy cylinder

C-tungsten alloy cylinder

Screws and barrels processed via the bimetallic alloy process have many virtues, such as high hardness, and stronger wear resistance. And their general properties are three times that of the Nitriding Steel. Thus they can overcome weak points such as easy wearing and easy corrosion. They are widely used in the production of plastic materials. The main machining methods are as follows: spot spray, spray coating, cover coating, mold, butt welding. The bimetallic process used in our factory is an advanced technology final production quality is stable. It will be the choice for producing special screws.

The advantage of bimetallic screws: strong and abrasion resistant, good for the 30% glass fiber and reworked materials.

Skin characteristics

1 super hard alloy of high density, low porosity, and high hardness.

2 uniformity heating of powder and low-strength pressure

3 can effectively smooth spray.

4 high dynamic energy and uniform hardness.

5 with high corrosion resistance, high wear resistance, and high-temperature resistance properties.

The 6 adhesion forces, can be processing, and coating thickness.

Hardness: HV1100-1400
Adhesion strength: Above 10000Ps

Alloy powder of tungsten carbide ( WC ):

Nickel chromium alloy ( NiCr ),

Self-fluxing alloy (also according to the different material, the use of alloy powder mix )

Application:

The barrel inner hole centrifugal casting of metal, alloy screw, and barrel: with wear and corrosion resistance, high-temperature resistance, high-pressure resistance, commonly used, lens, transparent shell, cosmetics containers, transparent acrylic, nylon, PVC, PC, PPAPPO, PPS, PA6T, ICP, ABS, bakelite, fire PC + glass fiber, Nylon + glass fiber, powder, ceramic powder, aluminum powder, iron powder, electric injection molding machine.

Application: injection molding machine. Extrusion machine
Dimension: ф18mm~ф90mm
Effective length: 3000mm
Hardness: HRC52-55

The bimetallic barrel for the single screw is a kind of barrel molding 2-5mm-thick alloy coat on the barrel inner wall which has corrosion resistance, abrasion resistance, and high working temperature. Its useful service life is greatly improved in contrast to the common nitrided barrel. Bimetal has more obvious advantages when processing special plastics to enhance the abrasion life, such as engineering plastics, fluorine plastics, PpO, etc.

The company uses special alloy powders being sprayed and welded on the screw bridge and used different alloys and welding methods for the screw of different functions.

The advantage of bimetallic screws: strong abrasion resistant, good for 30% glass fiber, and reworked materials.
Skin characteristics1 super hard alloy of high density, low porosity, and high hardness.

2 uniformity heating of powder and low-strength pressure

3 can effectively smooth spray.

4 high dynamic energy and uniform hardness.

5 with high corrosion resistance, high wear resistance, and high-temperature resistance properties. The 6 adhesion force, can be processing, coating thickness

Hardness: HV1100-1400
Adhesion strength: Above 10000Ps
Alloy powder of tungsten carbide ( WC ):Nickei chromium alloy ( NiCr ), Self-fluxing alloy (also according to the different material, the use of alloy powder mix )

Application:

The barrel inner hole centrifugal casting of metal, alloy screw, and barrel: with wear and corrosion resistance, high temperature resistance, high pressure resistance, commonly used, lens, transparent shell, cosmetics containers transparent acrylic, nylon, PVC, PC, PPA, PPO, PPS, PA6T, LCP, ABs, bakelite, fire Pc + glass fiber, Nylon + glass fiber powder, ceramic powder, aluminum powder, iron powder, electric injection molding machine

B-1--Ceramic special screw - plus fiber, fire retardant, flame retardant engineering plastics, ceramic, magnet powder

Product introduction:

Supersonic alloy spray + metallurgical combine, super wear resistance, high corrosion resistance, applicable to ceramic injection molding processing. The hardness, wear resistance, and corrosion resistance are required to have adequate surface hardness and thickness and can cope with various plus fiber, fire retardant, flame retardant engineering plastics, ceramic, magnet powder, and other special corresponding hardness we ar resistance of materials. Strength due to the use of Hitachi's original high toughness DAC-MAGIC parent material, in its outer surface cover, about 2mm alloy layer, through the metallurgical binding, so it has high flexural strength and compressive strength. 4 ceramic finished screw inspection before shipping, the ceramic screws can not be packed unless 12 hours of immersion of concentrated sulfuric acid after inspection to realize no foaming, no bubbles, no cracking, and no corrosion.

Scope application: PA, PC, halogen-free material adding; PA, PC plus fiber above 40%; iron powder, ceramic powder is easy to wear and contamination of raw materials

B-2--The magnet powder specialized screw--engineering plastics which have glass fiber、fireproofing agent、and fire retardant,ceramics, magnet powder

Product Description

Patent alloy sintering technology: supersonic speed Alloy melt shoot+ Metallurgical Bonding, Super wear resistance, Super corrosion resistance, Apply to the magnet powder processing molding.

Hardness—Get wear resistance and corrosion resistance should be fully surface hardness and thickness, Can deal with all kinds of added glass fiber, fire prevention agent flame retardant engineering plastic, ceramic, magnet powder, and other special requirements of the corresponding materials wear-resisting hardness.

Intensity—Due to the use of Hitachi's original high toughness DAC-MAGIC be the base material, a 2mm alloy layer on the surface, after Metallurgical Bonding, so has a very high twisting strength, and compressive strength, the scope of application; PA. PC、halogen free ; PA. PC is more than 40%glass fiber; extremely easy to wear raw materials like iron powder and ceramic powdery pollution raw materials.

B--3 - halogen special full alloy screw - super wear resistance and corrosion resistance, suit for halogen-free + 50%GF materials.

Product Introduction:

Patent alloy sintering technology: supersonic alloy spray + metallurgical combination of super wear resistance, high corrosion resistance for halogen-free + 50%GF materials using. Hardness, wear resistance, and corrosion resistance are required to have adequate surface hardness and thickness, and can cope with various plus fiber, fire retardant, flame retardant engineering plastics, ceramic, magnet powder special wear-resistant materials corresponding hardness requirements. Strength due to the use of Hitachi's original high toughness DAC-MAGIC parent material, the outer surface covers about 2mm alloy layer, through the metallurgical binding, so it has high flexural strength and compressive strength

Scope application: PA, PC, halogen-free material adding; PA, PC plus fiber above 50%; iron powder, ceramic powder is easy to wear and contamination of raw materials.