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混砂机是铸工车间砂处理工部的主要设备,其结构的合理性关系到型砂的混辗质量。目前,中小型铸工车间多采用手工造型和低比压造型机造型,要求型砂具有高的湿压强度;适宜的湿透气率;好的流动性等。使用膨润土砂,可以满足以上要求,但膨润土价贵且运输困难。能否提高粘土砂的混辗质量,使粘土砂达到膨润土砂的性能,是一般中小厂所希望介决的一个问题。
Sand mixer is the main equipment in the sand processing department of the foundry. The rationality of its structure is related to the quality of sand mixing. At present, the use of small and medium-sized castors shop more modeling and low pressure molding machine modeling, sand requires high wet strength; suitable wet air permeability; good liquidity. The use of bentonite sand can meet the above requirements, but bentonite is expensive and difficult to transport. Can improve the quality of the clay roller sand, clay sand to reach the performance of bentonite sand, the general small plant hope that a problem to be resolved.