| 摘要 |
PURPOSE:To attain uniform and rapid heat treatment of a large lot of wire rods and to carry out hot drawing at the same time as required by placing one or more conical or cylindrical drums for heat treatment in a heat treating furnace. CONSTITUTION:Two conical drums 1 for heat treatment are placed in a heat treating furnace 2. A heating element 6 is also placed in the furnace 2 and a gas inlet 7' for introducing a gas into the furnace 2 is fitted to the furnace 2. Wire rods are introduced into the furnace 2 from an inlet 21. A shaft 4 having a fitted pulley 5 is set in each of the drums 1.
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