| 摘要 |
PURPOSE:To smooth the feed to rolls in the direct feed type steel shape rolling method, by measuring the temperature of web or flange of the roughly shaped steel billet, in front or backside of the roughing mill, and by turning that billet upside down when the temperature difference is more than the allowable set value. CONSTITUTION:The upper-surface temperature detector 10a and the lower-surface temperature detector 10b are installed nearby the manipulator 9a on the inlet side; when the roughly shaped billet 8, being cut into a specified length, is transported nearby these temperature detectors, the temperature of the upper and lower surfaces of the web or flange are measured. The temperature detecting signals are sent to the operator 11 which then computes the temperature difference between them; and the relation between the upper and lower surface temperatures, and their difference are displayed in the display 12. Then, depending on these displayed results, when the difference is within a specified range, the billet is fed to the roughing mill 4 in the posture as it is; and when the difference is out of the specified range, the billet is turned upside down by the manipulator 9a on the inlet side on the purpose to place the higher temperature surface upside, and is fed to the roughing mill 4. |
