1. Nickel-based self-fusing alloy powder:

The so-called self-fusible alloy refers to the alloy containing boron and silicon and other deoxidation elements and low melting point, in the heating melting process, the composition of the alloy can reduce itself and the oxide of the substrate, the formation of low melting point borosilicate slag covered on the surface, to prevent the oxidation of the alloy and improve the wettability, so that the alloy and the substrate get a good metallurgical combination of alloy materials. The bonding strength of the welding layer and the substrate is generally 30-50kgf/mm²(300-500Mpa). Depending on the different chemical composition, HRC15-65 welding layers of different hardness can be obtained. Spray welding process is mainly suitable for large impact load, thermal fatigue environment and the workpiece deformation requirements are not strict. Nickel based powders are mainly nickel chromium borosilicon alloy and nickel borosilicon alloy. The common characteristics of this kind of alloy are low melting point, good self-melting, with good wear resistance, corrosion resistance, heat resistance and oxidation resistance, etc., is the earliest and most widely used self-melting alloy.

Nickel-based self-soluble alloy powder, the largest sales product is: Ni60A, which is a HRC hardness of 60 nickel alloy powder, high hardness, corrosion resistance, cheap, commonly used processes are: oxyacetylene flame spray welding, plasma spraying, plasma surfacing, supersonic flame spraying.

Among the nickel-based self-soluble alloy powder, there is another plate: glass mold welding powder, among which the best sales :DG.Ni220M1, suitable for glass mold and other mold welding layers. Moderate hardness, good ductility, the prepared welding layer after fine grinding, no needle eyes, bubbles, cracks and other defects, can replace Stari glass mold welding powder, as well as the United States WCC brand glass mold welding powder, cost-effective, price concessions.

The first is the coated type, on the basis of Ni60A, the addition of tungsten carbide particles, so that Ni60A coated tungsten carbide, greatly increase the deposition rate of tungsten carbide on the workpiece, often used in a variety of: screw, agricultural machinery blade, wear-resistant spiral, fan blade, pick, and other wear resistant workpiece.

The second is the mixed type, on the basis of Ni60A, add tungsten carbide particles, to the mechanical mixing of tungsten carbide particles and Ni60A mixed production process, the proportion of mechanical mixed tungsten carbide can be higher than the coating, often used in a variety of: screw, agricultural machinery blade, wear-resistant spiral, fan blade, pick and other more wear-resistant workpieces.

The third is to use medium and low hardness nickel-based alloy, mechanical mixed casting tungsten carbide, both toughness and wear resistance.

Nickel content above 99.5%, can be used as an additive;

Nickel base base powder is used in the substrate and ceramic powder between the alloy powder, the role is to increase the bonding effect of ceramic powder, and release the stress of ceramic powder, as a transition layer;

Among them, the best sales are: Ni80Cr20 and NiCrCoAlY, which can replace Oerlikon Metco, and the price is very competitive

Such as In625, In718, Hastelloy C276, Monel, nickel-chromium, nickel-iron alloy

Cobalt-based powder is usually developed on the basis of cobalt-chromium-tungsten alloy, which has better thermal strength and high temperature red hardness than nickel-based, and also has good corrosion resistance and wear resistance, but due to

The price of cobalt metal is more expensive, and the application is subject to certain restrictions.

Iron base powder is more widely used than cobalt base and nickel base self-melting alloy. It has a certain wear and heat resistance properties, although the spray welding and self-melting is not as good as nickel and cobalt spray welding alloys, the operation is more difficult to master, but the powder price is low is its main advantage, the more popular laser cladding processing of iron alloy powder.

The typical 304,316 stainless steel powder sells well

 The best-selling WC-Co12, WC-Co17, WC-Co10Cr4 can replace Oerlikon Metco products, and the price advantage is great

 The best-selling DG.WC-CrC-7Ni can replace Oerlikon Metco products with great price advantage

The best-selling Cr3C2-25NiCr can replace Oerlikon Metco products, and the price advantage is great