Novel rolling repair process for surface cracks of crystallizer copper plate

Abstract

The invention discloses a novel rolling repair process for cracks on the surface of a crystallizer copper plate. The novel rolling repair process mainly comprises the following steps that sand blasting treatment, shot blasting treatment and rolling treatment are conducted on a U-shaped part where the crystallizer copper plate and a machined wear-resistant and heat-resistant laminate are in butt joint and coincide; and welding the assembled crystallizer copper plate and the processed wear-resistant and heat-resistant laminate by adopting an explosive welding technology. The coating thickness can be increased, the binding force of the coating and the base material is increased, and the problem of the binding strength of the crystallizer copper plate body and the coating is effectively solved. The coating formed through the explosive welding technology has the metallurgical bonding characteristic, not only is not prone to falling off, but also has good maintenance convenience and economical efficiency in the later maintenance process, better technical performance of the crystallizer copper plate is achieved, the crack repairing difficulty is reduced, and the crack repairing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of crystallizer copper plate processing, in particular to a new process for rolling and repairing cracks on the surface of the crystallizer copper plate. Background technique [0002] The application of continuous casting equipment has promoted the rapid development of the iron and steel industry, bringing about higher production efficiency and the production cost of arable land, while the continuous casting mold copper plate directly contacts the high-temperature molten steel during the production process, and its performance directly determines the quality of the ingot. Surface quality and microstructure properties, its life and stability directly affect the production efficiency and production cost of iron and steel smelting. The working environment of the mold copper plate is extremely harsh. It not only bears the static pressure of the high-temperature molten steel, but also the friction and thermal fat...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of the bonding strength of the coating on the working surface of the crystallizer copper plate, and to enhance the working efficiency of the crystallizer copper plate. Improve the performance of the surface coating, increase the service life of the working surface coating, and improve the working efficiency of the crystallizer copper plate

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