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Nickel - based tungsten carbide alloy powder mainly refers to the nickel - based self-melting alloy on the basis of the addition of tungsten carbide powder, so that it has a better wear resistance.Nickel base self-fusing alloy powder mainly refers to nickel-chromium borosilicate alloy and nickel-borosilicate alloy, this kind of alloy has low melting point, good self-fusing property, good wear resistance, corrosion resistance, heat resistance and oxidation resistance and other comprehensive properties, is the earliest and most widely used self-fusing alloy tungsten carbide powder.
Nickel based tungsten carbide alloy powder characteristics:
Nickel based tungsten carbide alloy powder is divided into two kinds, one is a mechanical mixture, suitable for one-step spray welding, the other is a coating type, suitable for plasma and oxygen - acetylene flame spray welding.Users can choose according to different requirements and operation habits. 
Chemical composition of powder (Wt%)
Ni60 + 25% WC Ni60 + 30% WC Ni60 + 35% WC Ni60 + 50% WC
Uses: high hardness, super wear-resistant, used for oil drill pipe joints, reamer, fan blade, guide plate, blade, scraper and other surface strengthening and repair. 
Typical use: good processing performance, abrasive wear is suitable for all kinds of friction devices, super hard, abrasive wear, scraper, fan blade, screw conveyor, etc
Usage: flame thermal spraying, spray welding, plasma spraying, plasma surfacing welding
Precautions: 1. Plasma spraying and plasma surfacing can choose -150/+300 mesh powder. 
2. Supersonic spraying can choose -260/+400 mesh fine powder. 
3. If wet, dry in 120℃ oven for 1 hour.