Principles to Be Considered in Cooperation Between Continuous Casting Machine and Rolling Mill

1. Type of finished product: At present, more than 100 steel products have been cast. Select the next step according to the quality of the product.

2. The section of the cast blank: The size and shape of the casting of the blank are mainly determined by the capacity of the rolling machine and the quality requirements of the rolling machine. The production section of the linked machine should be compatible with the obtained section required by the rolling machine. Small square -colored casting machines mainly provide 650, 500, or 400 -type rolling machine production profiles and wires. Generally, it is a fire. Its typical billet section is: 650 rolling machine, 140 to 220mm square blank, casting ruler 2.8 to 3.2m; 500/350 rolling machine, 120 to 140mm square blank, 1.4 to 1.6m long; 400/300 rolling machine, 90-120mm square blank, 1.4 to 1.6m long.

The cutting surface of the casting blank is greater than 160mm blank, which is mainly used for production steel such as rails, work beams, and slot steel.

Linking plate billets are mainly a thick plate or a thick plate or hot rolling belt in the production of a thick board rolling machine.

3. Compression ratio: Generally speaking, the sarne section of the supply of the blank can reduce the number of heating times and rolling roads, and improve the productivity of rolling machines and save energy. However, the section should be based on the premise of satisfying a certain compression ratio. The so -called compression ratio refers to the ratio of the horizontal area of the cast blank to the rolling material. In order to ensure that the internal tissue of rolling materials is dense, it has good mechanical properties, and different products require different compression ratios. When the compression ratio is 3, the mechanical properties required by general products can be achieved; when the compression ratio is 4, the product has good physical properties, which can uniformly the central tissue; , Uniformly the tissue of the steel and obtain good mechanics and physical properties.

4. Smart tolerance: For square blanks, the shape must be regular. The deviation of the two diagonal lines of the section is less than 2.5 to 3 %, and the deviation of the corner of the section is plus and minus 2°. If the diamond shape is severe, it may cause a stacked steel when pushing the blank, or the blanking of the blanking into the pore type when it is rolled.