| 发明名称 |
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| 摘要 |
PURPOSE:To join smoothly and quickly the ends of a preceding material and succeeding material and to improve efficiency and quality by subjecting simultaneously said ends to connection by press welding and to rolling. CONSTITUTION:The slab extracted from a heating furnace is rolled down by a roughing mill and thereafter the nose of the slab is raised by a nose raising roll E. The press contact surface is then descaled by wire brushes K in an oxygen- free atmosphere chamber J into which N2 is fed under the pressure. The preceding material is fed to a finishing mill and is engaged wth the top of the succeeding material at the speed controlled by pinch rolls C so that the ends of the two materials are superposed in the position just near a crank mill F so as to have an allowance for a lap. The feed speeds of both materials are thereafter synchronized by controlling the pinch rolls C until the materials arrive at the draft position of the mill F; at the same time, the materials are transferred in the chamber J and are press-welded during traveling in the chamber by the mill F. |
| 申请公布号 |
JPH062282(B2) |
申请公布日期 |
1994.01.12 |
| 申请号 |
JP19840109002 |
申请日期 |
1984.05.29 |
| 申请人 |
SUMITOMO KINZOKU KOGYO KK;SUMITOMO JUKIKAI KOGYO KK |
发明人 |
SHIRAI YASUTA;OKI MASAMI;KONISHI HIROMICHI;TAKASE KOHEI |
| 分类号 |
B21B9/00;B21B13/00;B21B13/02;B21B15/00;B21B31/28;B21B39/00;B23K20/04;(IPC1-7):B21B13/02 |
主分类号 |
B21B9/00 |
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