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What is nickel based alloy powder? Nickel-based powder is widely used for the self-fluxing series of alloy powders. It offers excellent corrosion resistance, high oxidation resistance and heat resistance. It also has good impact toughness. Low melting temperature, wide solid-liquid range, good wetting ability of WC and various substrates.
The spray-welding layer has outstanding properties of self-fluxing and wettability. The spray-welding layer has excellent properties such as high hardness, corrosion and wear resistance, and heat resistance. It is also difficult to cut. Wet grinding is preferred.

Classification nickel-based alloy powder
Nickel-chromium alloy thermal spray: There are different types of thermal powders, including nickel-chromium heat resistant alloy, which is produced by adding 20% chrome to nickel. Nickel-chromium heat resistant alloys do not oxidize much at high temperatures and are a good coating material that is resistant to heat, corrosion, and high temperature oxidation. The coating is dense, and adheres well to the base metal. It is the transition material between the coatings of ceramics and soft metals as well as other materials, and the base. It is a transition layer material that can improve both the coating and the base material. The bond strength.
(2) Nickel-chromium and iron alloy thermal powder: This type is made from nickel-chromium and appropriate iron, but has a slightly lower high temperature resistance than nickel-chromium. Other properties are the same. Nickel-chromium alloys are similar. Its main advantage is its low cost, making it ideal for corrosion-resistant repairs and transition layer thermal spray.
(3) Nickel-chromium-boron alloy thermal spray powder: This alloy contains elements such as boron, chromium and carbon, so it has high hardness and moderate toughness. The coating becomes heat resistant, corrosion resistant and wear resistant after spraying. It can be used as an anti-corrosion treatment for shafts and cylinders.
(4) Thermal spraying powder of nickel-aluminum: This powder is used to spray primers and is composed of aluminum and fine powders of nickel. Thermal spray powder is heated up to 600 degrees Celsius with the flame. A chemical reaction takes place between the nickel and the aluminum that releases heat. In addition, some of the aluminum will oxidize, which produces more heat. Nickel can diffuse into base metal at this temperature, improving the bonding of the coating. A second feature of the thermal spray powder made of nickel and aluminum is the rough surface that is formed on the coating after spraying. This provides a good surface to connect other spray materials. It is an ideal intermediate material because the expansion coefficient of the nickel-aluminum alloy thermal spray is similar to most steels.

Uses for nickel-based alloy Powder
The welding is done with oxygen-acetylene plasma or flame. It’s used to protect and repair corrosion-resistant wear-resistant components, including sliding wear resistant parts such as wire drawing rollers, cams and plungers.
1. Please adhere to the oxygen-acetylene or plasma spray welding requirements.
2. If you are using a medium or small spray gun, it’s best to use powder with a mesh of -150. When using a large spray gun, use powder with 320/150 mesh.
3. It is necessary to dry the alloy powder if there is moisture in the powder or if its storage time exceeds three months. (120°C, 2 hours of heat preservation).

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