| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a casting method in which any shrinkage cavity is hardly formed in a casting while shortening the time, between the pouring the molten metal and the taking out of the casting from a casting mold, as much as possible. <P>SOLUTION: The casting method is configured to use a casting device that includes: a casting mold 10 having a cavity 10A; and a cooling unit 20 for forcibly cooling a casting 7 formed in the cavity 10A from at least one end of the casting mold 10. There are provided an auxiliary cavity 4A to be communicated with a remote section of the casting 7 which is most separate from the cooling unit 20, and a temperature measuring device TC1 which is disposed so that a heat sensitive part is located within the auxiliary cavity 4A. The casting method continuously includes: a naturally cooling step which is started when the pouring of molten metal is completed; and a forcibly cooling step by the cooling unit 20. The forcibly cooling step is started so that the rate of decrease of the temperature measurement value by the temperature measuring device TC1 is accelerated immediately before it reaches the upper limit of the predetermined temperature range to be avoided. <P>COPYRIGHT: (C)2013,JPO&INPIT |
