How to preheat nickel tube and clean nickel tube?

Nickel tube is mainly used to make stainless steel and other corrosion resisting alloy, such as nickel steel, nickel-chrome steel and various non-ferrous metal alloys. Copper nickel alloy contains high nickle content and is not easy to be corroded. In addition, nickle tube also can be applied as hydrogenation catalysts and can be applied in ceramic products, special chemical vessels, electronic circuit and nickel compounds preparation, etc..

In the installation process, carbon steel and low carbon nickel cannot directly get in touch with each other (such as: tools, auxiliary device, hoisting, etc..) and must take insulating measures.
The climatic conditions of welding nickel tube will have large effects on the weld seam and air hole of titanium tube. When the environmental temperature temperature is lower than 16 ℃, titanium tube is easy to produce air holes. This is because the surface of groove has condensated water. These air holes can not be removed even by using acetone. When the environmental temperature is below 16 ℃, preheat nickel tube before welding. Within the scope of 300mm on both sides of welding seam of nickel tube should be heated to 15 ~ 20 ℃ in order to avoid moisture; When welding nickel tube, the relative humidity of air should be kept at  lower than 65%.

When the cleaning work of nickel tube is completed or the welding work suspends, in order to prevent new pollution, all nickel surface must be covered by using polyethylene film (only use the clean surface of polyethylene film to contact nickel, do not use the roll used film, adopt folding method and the clean surface towards inside).

Zhengzhou Sanhui Co., Ltd offers a wide range of rare metals’ products, like tungsten products, titanium products and others.