The production process of stainless steel tube with different diameter is simple, the production efficiency is high, the cost is low, and the development is fast. The main raw materials of the pipe of different diameter occupy a large proportion in the production cost, and the change of their prices directly affects the change of production cost. If the same type of stainless steel stamping elbow is welded, it is necessary to carry out the preheating of above 300 degrees C and the slow cooling treatment at about 700 C after welding. If the welding parts can not be heat-treated after welding, the welding rod of different diameter pipe should be selected.
Application of stainless steel pipe with different diameter
Application of metallurgical and power industry: metallurgy, power industry transport coal powder, ash, mud, lime gypsum slurry and so on, and consume a lot of metal pipes every year. Using ceramic composite pipe instead of other pipes, it has the characteristics of high wear resistance, long life, convenient installation and remarkable economic benefit.
The application in the mine and coal industry:
(1) mine: the wear and tear of the mine filling, concentrate powder and tailings transportation is serious. The service life of the used mineral transportation pipeline such as Panzhihua and Daye mine is less than a year. Instead of the stainless steel reducer, the life expectancy can be increased by about 5 times.
(2) coal: coal transportation and long-distance pipeline transportation of coal are generally transported by wet way, requiring that the conveying pipe is both wearable and corrosion resistant. The tube can be used as a long life conveying pipe with considerable economic benefits.