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粘结剂的性质

网址:www.zaoxingji.com.cn  2022-06-28  作者:admin    阅读:

型砂在外力作用或本身重力的作用下沿模样和砂粒间相对移动的能力称为流动能力。流动性好的型砂可得到紧实度均匀、轮廓清晰、表面光洁、尺寸精确的型腔,有利于防止机械粘砂,并可减少紧砂时间和提高生产率。
The ability of molding sand to move between pattern and sand under the action of external force or gravity is called flow ability. The mold cavity with uniform compactness, clear contour, smooth surface and accurate size can be obtained by the sand with good fluidity, which is beneficial to prevent mechanical sand sticking, reduce sand tightening time and improve productivity.
粒度大而集中,角形系数铜钟 一次性止血带 标志桩模具 钢丝轮 流水槽模具 防撞墙模具 检查井钢模具 不锈钢铸件 模锻件小的砂流动性好。
The sand with large particle size and small angle coefficient has good fluidity.
粘结剂的性质和加入量对流动性也有很大影响。实践证明钙基膨润土砂的流动性最好,普通粘土稍次,钠基膨润土最差。在原砂加入量一定时,不能借提高水分来提高流动性。
The properties and amount of binder also have a great influence on the fluidity. It has been proved that the fluidity of Ca bentonite sand is the best, that of common clay is a little less, and that of Na bentonite is the worst. When the amount of original sand is fi

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