| 摘要 |
PROBLEM TO BE SOLVED: To provide a centrifugal casting method where a teeming tube feeding a molten metal can be inserted into the cylindrical die of a centrifugal casting device without any trouble. SOLUTION: The terminal part of a teeming tube is moved to the upper and lower directions by a distance d1 so as to be made coincident with the axis line of a cylindrical die, and further, the tip part of the teeming tube is moved to the upper and lower directions by a distance dn so as to be made coincident with the axis line of the cylindrical die. By this operation, the line connecting the terminal part of the teeming tube and the axis line of the cylindrical die are made coincident, andθis made zero. Further, even ifθis made zero, when the curved amount to the upper part of the teeming tube is high, interference occurs upon its insertion into the die, the maximum diameter D of the curved amount is obtained, and when this value is less than a difference between the diameter of the opening of the edge plate and the diameter of the outer form of the teeming tube, the teeming tube is inserted into the cylindrical die, and, in the case the maximum value D of the curved amount is above a difference between the diameter of the opening of the edge plate and the outer form diameter of the teeming tube, the teeming operation is stopped, and with a time, teeming is performed once more, or the teeming tube is exchanged. COPYRIGHT: (C)2011,JPO&INPIT
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