| 摘要 |
<p>A method and an apparatus for shearing heated metal bars to billets A method is disclosed of shearing heated metal bars to form billets, using a hot shearing apparatus. The bars are heated or kept warm in an oven upstream of the hot shearing apparatus, and the bar column normally is conveyed back into the oven after a shearing procedure. The bar length differs from an integer multiple of the billet length, and in passing over to a subsequent bar, a remnant of the preceding bar is combined with an initial piece of the subsequent bar to form a billet of the billet length prescribed. In this context the handling, above all upstream of the shearing edge is simplified in that the final section to be sheared of the first bar always is advanced beyond the shearing edge up to a predetermined length limit, the occurrence of the butt joint between the two successive bars is detected at a metering station located approximately one billet length upstream of the shearing edge, and upon detection of a butt joint, the bar column always is left in front of the shearing edge, rather than being conveyed back into the oven.</p> |
