| 摘要 |
<p>PURPOSE:To improve workability and to efficiently roll a hardly workable stock by reheating the stock to be worked in immediately front of a rolling mill. CONSTITUTION:A stock 12 to be worked passes a multi-roller type straightener 16 through a looper 20 from a stock supplier 14 and wire peculiarity and bends of the stock 12 are straightened. A resistance heating device 22 heating the stock in flying and two sets of a pair of rollers 24, 24 pinching the stock 12 are installed. The stock 12 is heated with resistance by applying a required electric voltage to the two sets of the rollers 24, 24. A scaler 26 such as a shot blast is installed in the upstream side of the resistance heating device 22. Horizontal rolling rolls 28 and vertical rolling rolls 30 are alternately and plurally installed in the supply direction of the stock 12. A loose amount of the stock 12 is kept constant by installing a looper 20 between the resistance heating device 22 and a rolling mill 32. The stock 12 is cooled and is wound on a stock collector 34. Hence, the reheating and efficient rolling of the stock 12 are performed.</p> |
