What are the defects of steel castings? How to control defects in steel castings?

For those engaged in the foundry industry, the defects in the production process of steel castings have always troubled many. As soon as the production of steel castings begins, defective issues are inevitable.

The common defects of steel castings include sand holes, porosity, shrinkage holes and so on. 

How to prevent these defects has always been a matter of concern for foundry manufacturers. We can now minimise these defects as much as possible through technological improvements. So, what are the precautions to avoid defects in steel castings? To prevent sand holes, we can establish a correct and reasonable pouring system to avoid excessive impact of molten metal on the sand core, and also to maintain a smooth surface of the pouring cup free of floating sand. Why is there a porosity issue on the surface? 

The pouring should also control the pressure head and speed to ensure that the molten steel can smoothly fill the cavity and prevent gas from being rolled in. In fact, there are many methods to address steel casting defects, and there are different solutions to tackle different defects. Supreme Machinery has been committed to reducing the defects of steel castings, enhancing the performance of castings, and increasing customer satisfaction.