| 摘要 |
PROBLEM TO BE SOLVED: To perform heat treatment to an unheat-treated product after hot forging to reduce variation of tissues or physical properties among parts of produced forging product.SOLUTION: In forming a forging product by performing heat treatment after hot forging, a temperature regulator 11 reduces a variation in temperature of an unheat-treated product after the hot forging before performing the heat treatment. The temperature regulator 11 includes cooling means 21 for cooling, in the unheat-treated product, a high temperature part whose temperature is higher than that of any of other parts to reduce a difference in temperature between the high temperature part and the any of other parts. |
