Tubular mould for continuous casting

Details Tubular mould for continuous casting Tubular mould for continuous casting

B - Operations, Transporting

22

D

B22D 11/00 (2006.01) B22D 11/04 (2006.01)

Patent

CA 2522190

Moulds are used for continuously casting round or polygonal billet and preblock formats, wherein the mould cavity thereof is made of a copper pipe (3) which is intensively cooled by means of a water circulation cooling system. According to the invention, in order to increase both the cooling capacity and the dimensional stability of the mould cavity (4) and to increase the total service life of the copper pipe (3), the copper pipe (3) is provided with a protective casing (12) or protective plates which cover the entire periphery of the outer pipe casing (5). Cooling channels (6) which are used to guide the cooling water to the copper pipe (3) or to the protective casing (12) are provided in order to cool the copper pipe (3). The cooling channels (6) are distributed over the entire periphery on the outer pipe casing (5) and extend essentially over the entire length of the mould.

Pour la coulée continue de billettes et de blooms de section circulaire ou polygonale, on utilise des lingotières dont l'empreinte se compose d'un tube en cuivre (3), refroidi par circulation d'eau de façon intensive. L'objectif de cette invention est d'augmenter, d'une part, la puissance de refroidissement et, d'autre part, la stabilité de forme de l'empreinte (4) ainsi que d'allonger la durée de vie totale du tube en cuivre (3). A cet effet, ce tube en cuivre (3) est pourvu d'une enveloppe de soutien (12) ou de plaques de soutien sur tout le pourtour de l'enveloppe extérieure (5) du tube. Pour le refroidissement de ce tube en cuivre (3), des canaux de refroidissement (6), destinés à acheminer l'eau de refroidissement, sont placés sur ledit tube en cuivre (3) ou sur l'enveloppe de soutien (12). Ces canaux de refroidissement (6) sont répartis sur tout le pourtour de l'enveloppe extérieure (5) du tube et s'étendent sensiblement sur toute la longueur de la lingotière.

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