Metal seated ball valve nickel-based alloy thermal spraying is a sealed surface hardening method currently on the metal seated ball valve of successful applications, nickel-based alloy wear and corrosion resistance, heat resistance, etc., its excellent overall performance, according to our practice, nickel based alloys for gray water, black water, coal slurry, cinder and other media working conditions.
Nickel-based alloy is a fusion of gold since the main components include nickel, chromium, boron, silicon, which is the main component of nickel, a binder is wear-resistant material and the substrate material, depending on the ratio of ingredients, you can get different hardness, Metal seated ball valve commonly used HRC55 ~ 64 hardness. Through the high temperature matrix material and nickel-based alloy material is heated, enabling the substrate and the sealing surface of the wear-resistant materials to achieve metallurgical bonding, therefore, metal seated ball valve nickel-based alloy thermal spraying with high bonding strength characteristics. Compared with HVOF, another advantage of nickel-based alloy thermal spray coating thickness is larger, generally 0.5 ~ 1.0mm.
For thermal spray metal seated ball valve nickel-based alloy coating process for bonding substrates and nickel-based alloy material has a great influence, control the ball and the heating temperature nickel-based alloys is very important, the temperature is too low, the base material and the nickel based alloy material can not realize metallurgical bonding, prone to shedding of the coating material. The temperature is too high, it will result in the loss of melt nickel-based alloy material. For large-diameter sphere, since the thickness of each part of the ball is very uneven, therefore, to be precise uniform heating temperature control of the ball is very difficult, which is the main difficulty of nickel-based alloy thermal spraying, for which we have taken the medium frequency induction Sphere heating patented technology, and achieved good results.
Should you want to know more about ball valve from Reliable China valve manufacturer, please visit www.reliavalve.com or email us via sales@reliavalve.com.
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