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    Electric furnace industry news

    What are the hazards of making sand cores with core making machines ?

    In the traditional hot core box core shooting machine production process, the general use of sulphur resin sand for sand shooting, but we will find that the sand core is relatively poor, and the storage time is relatively short, a little bit For making sand cores with thin walls and high complexity, the quality is not guaranteed.

    After some experiments, it was decided to replace the original slag resin sand with thermosetting phenolic resin sand, that is, coated sand, mainly because of its beneficial performance. For example, the fluidity of coated sand is like dry sand. It is ideal. Even if it is mixed and stored, it can reach more than half a year. At the same time, its strength is relatively high, which is very suitable for thin and complex cores.

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