| 摘要 |
PURPOSE: A heat treatment apparatus is provided to prevent the cracking of a material by weakening brittleness in the heat treatment of a material. CONSTITUTION: A heat treatment apparatus comprises a transport unit, a heating unit(5), a heat preventive unit(7) and a heat treatment unit. The transport unit rotates a material(P) and transfers the material. The heating unit heats material with frequency. The heat preventive measure is arranged between a discharge side and a heating section of the heating unit.
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