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METHOD FOR IMPROVEMENT OF CASTING QUALITY
METHOD FOR IMPROVEMENT OF CASTING QUALITY
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机译:铸造质量的改善方法
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摘要
Systems and methods for improved molding sand performance through use of recovered additives from the existing waste stream in a foundry. Sand, clay, and carbon-containing organic components are wet recovered from a green sand mold foundry dust recovery system. The sand and non- sand fractions may be further treated to reduce water content or adjust the levels of various components to generate a pre-mix additive for the generation of new green sand molds, that may display improved properties at ambient and high temperatures when compared to commonly employed traditional pre-mix. In some examples, pre-mixes having reduced sulfur content are obtained. In several embodiments, the non- sand fraction obtained from bag house dust or dust from mechanical reclamation includes increased levels of bentonite claim and carbon.
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