Technique method of thin middle plate continuous casting and rolling production

Abstract

The invention belongs to the technical field of molding, in particular to a technique method of thin plate continuous casting and tandem rolling, namely effective thin plate process (ETPP). The invention is composed of a conticaster and a rolling mill. Casting plate blanks are broken by the conticaster, a heating furnace is adopted to heat the plate blanks to a set temperature 1050-1200 DEG C, and then the plate blanks are delivered out through a roller way; iron scale on the surface of the plate blanks is removed by high-pressure water; the plate blanks are rolled by the rolling mill set andare performed with laminar flow cooling through a laminar flow cooling device; the slab bands are cooled to a target temperature of 550-780 DEG C and are coiled by a recoiling machine; and the rolling finished products can be delivered in whole coils or can be delivered through being cut into single plate or single stack by a transverse cutting unit. The process flow of the invention has simple equipment components, high production efficiency and little investment. The process of the invention can be applied to the construction of a newly-built or reconstructive medium-thick plate rolling mill.

Description

technical field [0001] The invention belongs to the technical field of forming, and relates to a process method for continuous casting and rolling production of plates, in particular to a process method for continuous casting and rolling production of thin medium plates, that is, a production process method for high-efficiency thin medium plates--ETPP (Effective Thin Plate Plate Process). Background technique [0002] In recent years, China's medium and heavy plate production has made great progress, but it still cannot meet the needs of national economic development. More than 50% of the production capacity of my country's hot-rolled wide strip mills is used to produce medium and heavy plates, and most of the finishing mills with huge investment are empty. Over or small reduction rolling, resulting in a lot of waste. However, the thickness of the billet of the plate rolling mill is generally between 180 and 300mm, and the rolling of thin plate has many passes, low output, a...

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Problems solved by technology

[0002] In recent years, China's medium and heavy plate production has made great progress, but it still cannot meet the needs of national economic development. More than 50% of the production capacity of my country's hot-rolled wide strip mills is used to produce medium and heavy plates, and most of the finishing mills with huge investment are empty. Over or small reduction rolling, resulting in a lot of waste

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