連続鋳造法によるアルムニウムスラッブの性質（第1報）
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概要
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Continuous casting of metals is not a new method and the nonferrous industry has been used the method extensively. In this research, we have accumlated valuable experience and have formed some difinite ideas on the proper operation. The equipment shown in Fig. 1 is provided with a holding furnace, spout, upper mold with water-cooled and lower mold which travels downward by means of a turbine pump at a constant rate. Just below the upper mold, spray rings are installed and which provide water direct to casting to hasten the solidification. Up to 80 1/min is sprayed through the rings. The molton metal is poured into the turdish (Fig. 2), which is an iron box lined with refractory. Having achieved a steady flow of the molton metal from the turndish into the upper mold, we made studies on molds and the shape of distributor. The mald, machined from a solid block of copper, has a 160 × 240 mm rectangular shape and the cooling water enters into the mold from the bottom part of it and exits from the top. The tables 2 and 5 show the summarized data and which we have obtained in running the above mentioned continuous machine. A number of holes and its position in a distributor varied widely as shown in Fig. 3. The coarse dendritic grain (banana-like) varied its shape by the number of holes and its position ; but we have found that the principle of 4-holes type is preferable. Tables 3 and 6 illustrate the mechanical properties of annealed sheets which are rolled from the continuous casting slabs. The directionality in a sheet is appeared remarkably in the transversal direction to the rolling. The blister appeared in a sheet is dispersed in a shape of particle, but is not coagurated.
- Japan Foundry Engineering Societyの論文
Japan Foundry Engineering Society | 論文
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