ダイキャスト鑄造法の研究（第2報）:—鑄物長さの影響—

概要

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The size of the gate of thin-wall rectangular diecastings was reported in Rept. 1. Here is reported whether the size of the gate in Rept. 1 will be applied when length of the cavity varies and moreover whether its location is thought in the similar relation of the cavity form. This experiment was summerized as followings ; (1) In the case of the narrow gate {(W / W) < 12;} having vortxes on both sides of a jet, the molten alloy flow is not influenced by length of the cavity. The wider gate {(W / W) > 12;} occurs a vortex in flow when length of the cavity becomes shorter. (w : width of the gate, W : width of the cavity) (2) The filling rate, in Silumin, is not so far influenced by length of the cavity, and in Babbit No.2 is done much. (3) The filling rate is remarkably influenced by the molten metal flow. It becomes worse by confusion of flow or an vortex. (4) The gate size reported in Rept. 1 is applied to any length of the cavity. (5) The location of the gate on the large side of the rectangle can be similarly thought to one on its small side and its size depends upon Rept. 1.
Japan Foundry Engineering Societyの論文