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CN104561640A 一种贵金属合金铸件及其制作方法 无效 - 撤回

一种贵金属合金铸件及其制作方法
摘要：
本发明公开了一种贵金属合金铸件及其制作方法，用以提高贵金属合金铸件的致密度。所述贵金属合金铸件的制作方法，包括：在熔炼设备中对贵金属合金进行熔炼，得到液态状的贵金属合金；将所述液态状的贵金属合金注入离心装置的浇铸磨具，对所述贵金属合金进行离心浇铸，得到贵金属合金铸件；其中，离心浇铸时浇铸磨具的转速为120～600r/min。这样，可有效提高贵金属合金在凝固时的充型和补缩压力，减小贵金属合金产品的缩孔，从而可有效提高贵金属合金铸件的致密度。
摘要（英）：

The invention discloses a precious metal alloy casting piece and a manufacturing method thereof and the manufacturing method is used for improving the compactness of the precious metal alloy casting piece. The manufacturing method comprises the following steps: smelting precious metal alloys in smelting equipment to obtain liquid-state precious metal alloys; pouring the liquid-state precious metal alloys into a casting mould of a centrifuging device; and centrifugally casting the precious metal alloys to acquire a precious metal alloy casting piece, wherein the rotation speed of the casting mould is 120-600 r/min during centrifugal casting, so that the mold filling and feeding pressure of the precious metal alloys during condensation can be effectively improved, and the hole shrinkage of the precious metal alloy product is reduced, and the compactness of the precious metal alloy casting piece can be effectively improved.

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