Continuous rolling production process and process arrangement

Abstract

The invention discloses a continuous rolling production process and process arrangement. The continuous rolling production process includes the steps: 1) adopting liquid metal for casting of hot strip billet materials according to a thin-strip continuous casting and rolling process, subjecting the cast strip billets to hot rolling, and subjecting the strip billets to stipulated-curve heat treatment including heating and cooling after casting and hot rolling of the strip billets are finished; 2) enabling the cold hot-rolled strip billets to enter a side cutting unit to realize fixed-width cutting of side materials of the cold hot-rolled strip billets; 3) subjecting the cold strip billets to scale removal by means of jet mixing flow; 4) subjecting metal strips to continuous rolling in a cold-state continuous rolling unit; 5) enabling the metal strips to enter a shearing unit and a rolling unit sequentially. The continuous rolling production process and process arrangement have the advantages that intensified metallurgical production process arrangement is realized, one-time investment cost is remarkably reduced while the technical process is greatly simplified, carbon emission and acid liquid pollution are remarkably reduced, and processing cost of metal strip products is directly reduced.

Description

technical field [0001] The invention relates to a continuous production technology of metal strips, in particular to a continuous rolling production process and process arrangement. Background technique [0002] In order to save investment costs and daily maintenance costs, modern metallurgical production enterprises actively carry out technological innovations on existing production processes. For this reason, some well-known metallurgical equipment suppliers at home and abroad have put forward their own new technology concepts and put them into practical development. Aiming at shortening the length of the metallurgical production process, German companies such as Demark have gradually developed thin slab continuous casting and thin slab continuous casting and rolling technologies. Among them, Nucor Corporation of the United States has developed thin strip continuous casting technology; for environmental protection and green aspects, The American TMW (The Material Works) c...

AI Technical Summary

Problems solved by technology

Japanese patent JP57142710A discloses a method of descaling high-temperature hot-rolled sheets by first rolling and then using brush roller-high-pressure water jetting. The descaling rate reaches 80%, and then the traditional pickling method is used for final descaling. scale, this process not only does not reduce production energy consumption on hot-rolled raw materials, but also needs to use traditional acid at the end of descaling, so this process does not have energy-saving and environmental protection performance

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