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Sheet billet continuous casting and rolling production line

A thin slab continuous casting and production line technology, applied in metal rolling, metal rolling, workpiece surface treatment equipment, etc., can solve the problems of strong production line rigidity and poor surface quality of thin plates, so as to reduce operating costs and reduce factory The effect of investing, increasing speed

Inactive Publication Date: 2010-03-03
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It mainly solves the technical problems of strong rigidity of the production line and poor surface quality of the thin plate produced in the existing production line

Method used

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  • Sheet billet continuous casting and rolling production line
  • Sheet billet continuous casting and rolling production line
  • Sheet billet continuous casting and rolling production line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] Production equipment layout of the present invention refers to Figure 4 : Continuous casting machine 1-oscillating shear 2-roller hearth tunnel furnace 3-descaler device 5-vertical roll 6-rough rolling mill 7-hot coil box 8-ultra-fast water cooling device 9-flying shear 10-secondary descaling Device - finishing mill 11 - laminar cooling and ultra-fast water cooling device 12 - coiler 13.

[0040] (1) Continuous casting billet: use one vertical bending or arc continuous casting machine with one machine and two streams or two two machines and two streams to cast a cross-section (50-70mm)×(900-1650mm), and the length of the billet is based on Continuous casting slab for selection of coil weight and coil outer diameter.

[0041] (2) Swing shears: Automatic cutting according to the slab length required by the process.

[0042] (3) Tunnel furnace heating: Roller hearth tunnel furnace is adopted. The furnace length is determined according to the maximum casting speed of con...

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Abstract

The invention relates to a sheet billet continuous casting and rolling production line and mainly solves the technical problems of high rigidity and low surface quality of produced sheet billets of the prior production line. The invention adopts a technical scheme that: the sheet billet continuous casting and rolling production line is sequentially provided with the following production line equipment: a continuous casting machine, swinging shears, a roller-hearth tunnel furnace, a descaling unit, a vertical roll, a rough mill, a coil box, a ultrafast water-cooling device, flying shears, a finishing mill, a laminar flow-cooling and ultrafast water-cooling device and a coiling machine, wherein a secondary descaling unit can be arranged between the flying shears and the finishing mill; and the continuous casting machine adopts two double flow roller-hearth tunnel heating furnaces, combines two flows of the two continuous casting machines into one flow through a transverse moving machineand is connected with a rolling line. The invention is mainly used for continuous casting and rolling of sheet billets.

Description

Technical field: [0001] The invention relates to the technical field of slab continuous casting and rolling production, in particular to a rough rolling and finishing rolling disconnection, using a hot coil box to replace the intermediate heat preservation between rough rolling and finishing rolling to eliminate the transverse and longitudinal temperature difference of the intermediate slab The measure of the furnace realizes a method capable of producing high surface quality and relieving the rigidity of the rolling line in the thin slab continuous casting and rolling process, which involves the thin slab continuous casting and rolling production line. Background technique: [0002] The thin slab continuous casting and rolling process has been developed for nearly 20 years. There are many process layout methods, such as CSP, FTSR, etc., which have obvious advantages such as short process, low primary investment, and energy saving. However, due to its inherent Poor surface q...

Claims

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Application Information

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IPC IPC(8): B21B1/46B21B15/00B21B45/04B21B45/02B21C47/02
Inventor 陈应耀凌爱兵
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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