How to solve fast cooling cast iron parts

The use of cold molding materials can accelerate the cooling rate of cast iron parts. Since the reuse rate of the vacuum lost foam casting sand is 98%%, although the one-time investment increase of the special sand cannot be ignored, the casting quality benefit. Cold sand and sand cooling rates can be 1-4 times, much larger than traditional sand casting.

The negative effects of slow solidification can be offset by adjustments and optimization of the chemical composition of the cast iron. For example, by increasing the production of chrome grinding balls, it is possible to increase the formation of chromium carbides by carbides on the one hand, thereby significantly increasing the matrix-solid solution strengthening and grain refinement of the copper content in the hardness and content of the grinding balls. The impact value is like this.