| 摘要 |
A vacuum centrifugal casting apparatus is provided to improve productivity of the products while casting accurate articles or thin articles by using a metallic material with a high melting point such as Ti or Ti alloy. A vacuum centrifugal casting apparatus(1) comprises: a motor(10); a first rotary shaft part(20) rotated according to rotation of the motor; a second rotary shaft part; a first vacuum chamber(40a) and a second vacuum chamber(40b) in which crucibles and molds are housed, which are combined with each other such that the first and second vacuum chambers are oppositely directed to each other in a lateral direction relative to a rotary shaft direction of the second rotary shaft part, and which are rotated according to rotation of the second rotary shaft part; a rotary power control unit(50) for transmitting rotation of the first rotary shaft part to the second rotary shaft part or blocking the rotation of the first rotary shaft part transmitted to the second rotary shaft part; and a control part for controlling the rotary power control unit such that a rotary power of the first rotary shaft part is transmitted to the second rotary shaft part if a rotary speed of the first rotary shaft part exceeds a preset mold's rotary speed according to rotation of the motor. The first and second vacuum chambers include: body frames(41a,41b) on which crucible housing parts(43a,43b) and mold housing parts are formed, and which are opened upward; and door frames(42a,42b) for opening or closing openings of the body frames.
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