| 主权项 |
1. A heat treatment apparatus to apply tension annealing to magnetic wire comprising:
a wire supply part comprising a supply bobbin on which magnetic wire is wound, wire reels, a capstan for supply, and a tension roller, a wire diameter and wire tension measurement part comprising a wire diameter measuring device, a tension measuring device, a post measurement capstan, a tension roller and wire reels, a tension annealing furnace comprising a furnace for heat treatment, a temperature measuring device, a post heat treatment capstan, a tension roller and wire reels, a wire winding up part comprising a wind-up bobbin, a rolling up capstan, and wire reels, a control unit comprising an input unit to receive signals given by the wire diameter measuring device, the tension measuring device, the temperature measuring device, and the plurality of capstans and tension rollers and control instructions controlling the temperature, the tensile stress of the wire and the conveyance speed in the furnace to designated values by adjusting said rotary speed of the capstans and the tensile tension of the tension roller placed between said supply bobbin and a said wind-up bobbin, to make measured values of the temperature, the tensile stress and the conveyance speed equal to the designated values respectively. |
