Process for electrolytic coating of a strand casting mould

Details Process for electrolytic coating of a strand casting mould Process for electrolytic coating of a strand casting mould

C - Chemistry, Metallurgy

25

D

C25D 7/04 (2006.01) C25D 5/18 (2006.01)

Patent

CA 2504369

In a process for electrolytic coating of a strand casting mould, the internal surfaces of the strand casting mould which demarcates a mould cavity are coated with a coating material for the purpose of achieving or re-achieving intended mould cavity dimensions. The strand casting mould, as the cathode, an anode positioned in the mould cavity and an electrolyte containing the coating material is used. The electrolyte serving as the carrier of the coating material flows through the cavity of the strand casting mould in a controlled manner. During the electrolytic coating, only the internal surfaces of the mould cavity come into contact with the electrolyte and the external surfaces of the strand casting mould therefore do not have to be covered. The mechanical properties can be kept largely uniform over the entire region. The coating can be achieved more rapidly than with conventional processes.

L'invention concerne un procédé d'enduction galvanique d'une coquille (2) pour la coulée continue, selon lequel les faces internes (4) de la coquille (2) pour la coulée continue formant une empreinte (3) sont recouvertes d'une matière d'enduction, afin de réaliser ou de recréer une cote nominale d'empreinte. A cet effet, la coquille (2) pour la coulée continue sert de cathode, une anode (7) est disposée dans l'empreinte (3) et la matière d'enduction se trouve dans un électrolyte (25). L'empreinte (3) de la coquille (2) est traversée de manière ciblée par l'électrolyte (25) servant de support pour la matière d'enduction. Lors de l'enduction galvanique, seules les faces internes de l'empreinte étant mises en contact avec l'électrolyte, il est inutile de recouvrir les faces externes de la coquille. Les propriétés mécaniques sont largement maintenues homogènes sur l'ensemble de la zone et l'enduction est plus rapide que selon les procédés traditionnels.

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