The Chemical Composition Design And The Application Of High-Speed-Steel Rolls In The Chong Qing High Speed Wire Mills

Roller is one of main consumption in steel rolling production. Roller bearing on not only the costs of steel rolling production and rolling mill operating rate of production, also a great extent to the quality of production. With steel rolling technology, the speed and the degree of automation rolling mill continuously enhance the quality of roller set higher demands. The high-speed wire rod rolling mill of CHONGQING IRON&STEEL GROUP has the features of heavy steel aluminum , high-speed and high-automation. Now, the traditional methods of production have not produced the roller that demanded, especially from pre-finished, the current use of hard alloy steel roller costs too much and is easy to broken.The detailed analysis of high-speed steel roller various elements of the performance of their organizations and the impact on the high-speed wire rod rolling mill steel unique crafts conditions for optimizing the design and manufacture of high-speed steel roller elements. The main feature of roller is containing higher carbon, tungsten, molybdenum, and a certain amount of vanadium, with a aim to enhance the red rigid, organizations increase the number of high-hardness wear-resisting, high temperature to ensure roller has outstanding resistance to abrasion lost, and also joined the nickel, cobalt, aluminium, niobium and other elements to improve alloy roller spalling of the ability to resist cracking and improve resilience. This component in the production of materials with high-speed steel roller melting simple, casting is good, temper revealed nature, and good resistance to abrasion characteristics.High-speed steel roller with an electric smelting, and use Re-K-Na complex nature of the agents used in the steel package into law degeneration treatment is used in the production of high quality molten steel roller, centrifugal casting processes through parameters can be optimized high-speed steel roller blank quality.Through optimized heat treatment processes and heating system, high-speed craft steel roller has been qualified. In accordance with the principles of rolled metal and analysis, optimization of high-speed steel roller Central elements observed. Develop a detailed steel rolling operation points and norms to ensure that high-speed steel roller use in the pre-precision of the high-speed wire rod rolling mill. High-speed wire rod production through large scale use of aluminum shafts wear evenly, without proof, good resistance to abrasion, the production's surface bright, the size with high accuracy. The...