| 摘要 |
<p>PURPOSE:To provide a treating method of a metallic material difficult to be worked of stainless steel, etc., which has the excellent productivity and saves equipment and space therefor and gives excellent working environment. CONSTITUTION:At the time of executing the heat treatment to the metallic material 1 cold-worked, after induction-heating the metallic material 1 by passing through induction coils 26, 278 of a high-frequency induction furnace 6, the material is gas-cooled in a non-oxidizing and/or reducing atmosphere and, thereafter, oil cooling is executed.</p> |
