Why Does Casting Need To Remove Slag?

The reason for slag removal in casting is that during the casting process, molten metal will contact with other materials or air to produce oxidation reactions, and at the same time absorb and mix some impurities and gases to form casting slag. These slags will reduce the quality and mechanical properties of castings, and in severe cases, defects such as pores and inclusions will occur, which will affect the service life and safety of castings.

Therefore, the slag should be cleaned regularly during casting to ensure the quality of the casting and the stability of the process. In general, the process of casting slag removal is as follows:

Before starting casting, clean casting equipment and tools to ensure that they are clean and free of impurities.

A metallic material is heated to a liquid state and poured into a mold.

During the casting process, the slag is regularly scraped off the surface of the molten metal using a special tool, allowing the slag to settle on the bottom of the vessel.

To clean up the slag, usually use the slag door inside the casting equipment or manually clean up to completely remove the slag.

According to the requirements of the casting process and the actual production situation, the process of slag removal and cleaning is repeated continuously.

It should be noted that the process and specific steps of casting slag removal may vary slightly due to different casting processes and casting materials, but the core goal of the whole process is to ensure the quality and stability of castings.