A continuous hot rolling method of metal blocks, as well as...

Details A continuous hot rolling method of metal blocks, as well as... A continuous hot rolling method of metal blocks, as well as...

B - Operations, Transporting

21

B

B21B 1/26 (2006.01) B21B 15/00 (2006.01) B23K 13/01 (2006.01)

Patent

CA 2142464

The invention comprises a continuous hot rolling method in which a rear end portion of a preceding metal block and a fore end portion of a succeeding metal block are cut and the metal blocks are joined to each other by heating and pressing followed by a finish rolling. A region of each metal block is restrained from a clamping position to the end portion thereof in order to prevent a change in level of the metal blocks in heating and pressing the piece. The end portions of the metal blocks can be thus prevented from deformation.

L'invention concerne un procédé de laminage à chaud en continu consistant à découper une partie terminale arrière d'une pièce métallique précédente et une partie terminale avant d'une pièce métallique suivante, à chauffer les pièces métalliques résultantes, à augmenter leur température, à assembler par pressage les deux pièces métalliques, puis à soumettre ces dernières à un laminage de finition. Tandis que les pièces métalliques sont chauffées, soumises à une augmentation de température puis pressées, la région de chaque pièce métallique qui se trouve entre une partie de serrage de celle-ci et sa partie terminale est bloquée, ce qui empêche la déformation des parties terminales (partie terminale avant et arrière) des pièces métalliques.

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