| 摘要 |
<p>PURPOSE:To remarkably improve the accuracy of product dimentions by providing a rolling reduction apparatus between two rolling stands detecting the dimensions and shape on the final rolling stage, then deciding the rolling reduction value based on the detected signals. CONSTITUTION:A rolling reduction apparatus 3 consists of one pair of grooved rolls 5 without a rotating drive device and having a similar grooved shape with the rolling stand is provided between a preceding caliber type rolling mill 1 by which a wire rod is rolled and a succeeding caliber type rolling mill 2. In the stage of rolling, dimensions of the top and bottom direction and dimensions of right and left directions of a stock 6 to be rolled taken out from the mill 2 are detected by dimension detecters 8, 9. Then, these detected signals are compared with set values by a calculator 10 to calculate the rolling reduc tion value of the rolling reduction roll 5, then the rolling reduction apparatus 3 is driven through a hydraulic rolling reduction apparatus 11. Therefore, the accuracy of dimensions and shape of the wire can be remarkably improved.</p> |
