Technology of eliminating Nb microalloyed steel mixed crystal fexture in thin plate blank continuous casting continuous milling process

A technology of thin slab continuous casting and microalloyed steel, which is applied in metal rolling and other directions, can solve the problems of uneven structure of microalloyed steel, and achieve the effect of improving comprehensive performance, formability and fatigue performance
CN1785544AInactive Publication Date: 2006-06-14GUANGZHOU PEARL RIVER STEEL & IRON
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGZHOU PEARL RIVER STEEL & IRON
Publication Date
2006-06-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

A technology for eliminating the mix-crystal structure of the Nb microalloyed steel manufactured by EAF-CSP flow features that the reasonable technological flow and chemical components, and reasonable technological steps including conticasting, soaking, removing scales, hot rolling and coiling are used.
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Description

technical field

[0001] The invention relates to the field of alloy steel production technology, in particular to the field of producing Nb microalloyed high-strength steel plates and steel strips by using electric furnace thin slab continuous casting and rolling (EAF-CSP) technology. Background technique

[0002] Thin slab continuous casting and rolling technology is a hot-rolled wide-band steel production technology developed in the late 1980s, and EAF-CSP is one of the typical representatives of this technology. This technology organically combines electric furnace steelmaking, refining, thin slab continuous casting, soaking, hot rolling, laminar cooling and coiling, so that the production rhythm of hot-rolled wide strips is accelerated, energy consumption is reduced, and labor productivity is improved. It is a modern high-efficiency production technology of hot-rolled wide-band steel.

[0003] Micro-alloyed high-strength steel is a high-tech, high-value-added product in ...

Claims

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