| 摘要 |
PURPOSE:To keep the lubricating condition constant along the breadth of a rolling roll, and to obtain a high quality rolled sheet being free from the middle waviness, edge wave, etc., by practicing an electrolubricated rolling work while adjusting the voltage across a material to be rolled and plural electrodes arranged along the breadth of the rolling roll on the side of a lubricant oil tank. CONSTITUTION:Both of rolling rolls 7a, 7b directly contact over all their breadth with a lubricant oil 2 held in tanks 8a, 8b, and the lubricant oil 2 is fed in the direction of the rolling part. Electrode plates 9a-1, 9b-1, 9a-3, 9b-3 set in tanks 8a, 8b and middle electrode plates 9a-2, 9b-2 are respectively connected with individual voltage controllers 10b, 10a and DC electric power sources 11b, 11a. The detectors 12-1, 12-3, 12-2 for detecting the shape and size of the rolled sheet A along the breadth on the run-out side of the mill are respectively connected with voltage controllers 10b, 10a. The lubricating condition may be nonuniform in some cases, even if the sticking amount of the lubricant oil 2 is uniform along the breadth, and hereby the sheet A causes a middle waviness, etc.; however, it is detected by the detector 12 and the voltage controller 10 is actuated. For example, the voltage of the electrode plate 9 corresponding to a lubricant oil 2 lacking part is increased for increasing the amount of the lubricant oil 2; and hereby, the lubricating condition is made uniform. |
