Primary electroplating molding method of crystallizer copperplate for high casting speed continuous casting machine

Abstract

The invention discloses a primary electroplating molding method of a crystallizer copperplate for a high casting speed continuous casting machine, which comprises the following steps that: a. a copperplate substrate is treated; b. an electrolytic bath is isolated into two bath areas; c. a plating solution with a high temperature resistant plating coat and a plating solution with an antiwear plating coat are respectively injected into the areas; d. electroplating is carried out; and e. post-treatment is carried out. According to the method, the crystallizer copperplate is primarily electroplated, so that the upper and lower parts of the copperplate are respectively electroplated with different plating coats, the upper surface of a copperplate substrate is electroplated with the high temperature resistant plating coat, and the lower surface of the copperplate substrate is electroplated with the antiwear plating coat. An isolation membrane is arranged in an electrolytic bath and divides the electrolytic bath into two bath areas in which the upper and lower parts of the copperplate can be respectively electroplated with different plating coats, and the procedure is simple; and a small amount of electrolytes in the two bath areas are inevitably mixed, so that the component of the plating coat a joint of the two areas is more transitional, the high temperature resistant plating coat and the antiwear plating coat are combined more closely, and an obvious combining line does not exist, and thus the integration of the whole plating coat is ensured.

Description

technical field [0001] The invention belongs to the technical field of electroplating, and in particular relates to a one-time electroplating molding method for a mold copper plate of a high-speed continuous casting machine. Background technique [0002] In the continuous casting process, the upper part of the slab is in a molten state and the temperature is high. It is required that the thermal stress of the copper plate coating is small, the toughness is high, the hardness is low, and the thermal cracking resistance is high. The lower part of the slab has already solidified at a lower temperature. The friction of the copper plate is large, and the coating of the copper plate is required to have high hardness and wear resistance. However, we usually use the method of electroplating a single coating on the copper plate to prolong the service life of the copper plate, which often cannot solve the above problems at the same time, and causes the crystallizer copper plate to ea...

AI Technical Summary

Problems solved by technology

However, during the use of the high-speed continuous casting mold, the conventional coating wears a lot, and is heat-resistant and prone to fatigue, causing unplanned off-line of the copper plate, increasing the number of repairs of the copper plate of the mold, affecting the service life, and disrupting the normal production of the continuous casting machine The rhythm increases the abnormal downtime, which greatly reduces the operation rate of the continuous casting machine and the quality and output of the continuous casting slab, seriously restricts the normal operation of production, and seriously causes a steel breakout accident

Although some high-tech has come into being, the investment is quite large, the cost is too high, and the control of process conditions is demanding, which has not really achieved the purpose of reducing costs and increasing efficiency on the premise of ensuring product quality.

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