Discussion on Defects in Continuous Casting Machine Production

Continuous casting machine is a key equipment in the steel industry, which plays a significant role in the production process. However, during the operation of the continuous casting machine, various defects may occur, leading to an increase in waste and reduce the product quality. Therefore, it is necessary to explore the defects in continuous casting machine production and find out the improvement solutions to enhance the efficiency of production.

The first defect that may happen in the continuous casting process is surface cracks, which can occur due to the thermal stress and mechanical stress during the casting process. This defect cannot be completely eliminated, so we should focus on control it within acceptable limits. The solution to this problem is adding elements such as boron, titanium and zirconium into the molten steel, which can improve the thermal stability of the steel.

Another significant defect is the occurrence of inner porosity, which can affect the mechanical properties of steel and lead to further problems during subsequent processing, thereby reducing the quality of the final product. To address this defect, it is essential to control the casting speed and the cooling rate to avoid thermal problems and porosity formation.

Moreover, the occurrence of surface erosion is also one of the common defects during casting, which may cause significant damage to the machine. The reason for this defect occurs due to the impurities in the cooling water and poor water flow. The solution to this problem is to filter the impurities in the cooling water using the appropriate filters and ensuring adequate flow rates.

Besides, the problem of insufficient lubrication is also one of the defects that need to be improved. The insufficient lubrication of steel wire rods may cause burns, which affects the surface quality of the product. To solve this problem, it is essential to ensure adequate lubrication during the casting process, and appropriate adjustments of the lubrication system.

Finally, the problem of irregular shape and inaccurate size of products may occur. The primary solution to this problem is to control the casting parameters and ensure the quality of incoming raw materials. In addition, the use of advanced measurement instruments should be employed to enhance the accuracy of the products.

In conclusion, the defects in the continuous casting machine production process can cause a severe impact on the efficiency of steel production. Therefore, it is essential to control the defects by conducting regular maintenance and employing necessary improvement measures. In summary, defects can be effectively managed with proper control and governance at each stage of production from sourcing to post-processing.