Production system for H-shaped steel

Abstract

The invention provides a production system for H-shaped steel. The production system comprises a rough rolling unit, X-hole-shaped universal rolling mills, edging mills and an H-hole-shaped universalrolling mill. The rough rolling unit is used for rolling continuous casting billets for producing the H-shaped steel into intermediate billet materials first. Each X-hole-shaped universal rolling millcomprises two second horizontal rolls and two second vertical rolls, and an X-shaped rolling hole is formed between each two second horizontal rolls and the corresponding two second vertical rolls. When the intermediate billet materials rolled by the rough rolling unit enter the X-shaped rolling hole of each X-hole-shaped universal rolling mill, the corresponding two second horizontal rolls rollwebs of the billet materials, then the corresponding two second horizontal rolls and the corresponding two second vertical rolls roll the webs and flanges of the billet materials, and X-shaped billetmaterials are rolled. The X-shaped billet materials obtained after rolling of the X-hole-shaped universal rolling mills enter the edging mills, and the edging mills roll the flanges of the X-shaped billet materials to adjust the width of the flanges. The H-hole-shaped universal rolling mill is used for rolling the X-shaped billet materials rolled by the edging mills into the H-shaped steel.

Description

technical field [0001] The invention relates to the field of metal plastic processing and molding, in particular to a production system of H-shaped steel. Background technique [0002] As a high-efficiency and economical profile, H-shaped steel has been paid more and more attention by people since its inception, and is widely used in high-rise buildings, industrial plants, mine support, thermal power generation, petrochemical industry, harbor engineering, bridge gates and dams, subway engineering and other projects. under construction. The current production method of rolling H-shaped steel is to place the billet in an X-pass universal roughing mill (refer to Figure 13 ), edge rolling mill and H-pass universal finishing mill for multi-pass rolling, so as to roll out H-shaped steel. However, in order to realize the balanced deformation of the billet, it is difficult for the existing production system to directly use the rectangular billet for rolling. Generally, it is neces...

AI Technical Summary

Problems solved by technology

However, in order to realize the balanced deformation of the billet, it is difficult for the existing production system to directly use the rectangular billet for rolling. Generally, it is necessary to use a rough rolling mill to open the billet or directly cast a near-net-shaped special-shaped billet (such as Figure 14 shown), resulting in a limited range of specifications for production and reduced efficiency

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