でんぷん鋳型砂の繰り返し使用時の挙動

概要

論文の詳細を見る
The change in properties of the molding sands which were prepared by adding 2 to 3% pasted binder consisting of starch phosphate, zircon flour and graphite was investigated under repeated use. The dry and hot strengths of the dry sand molds with this binder were higher than those of the sand mold with starch phosphate alone. It was found that no defect could be obtained in iron castings by replenishing this heat-resistant starch phosphate as small as 1.5% to the molding sand for repeated use. However, ten time repeated use of the molding sands makes the residual starch reduce to 40% of the initial amount, so that the amount of starch replenished should be corrected at an appropriate time.
Japan Foundry Engineering Societyの論文