Prevention method for bruise of strip steel in hot rolling smoothing line

A preventive method and leveling technology, applied in the direction of metal rolling, metal rolling, manufacturing tools, etc., can solve the problems affecting the yield rate of the leveling area

Active Publication Date: 2019-08-27
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In thin-gauge weathering steel, cold-rolled materials and other flat main varieties, the contusion defects are concentrated in the middle of the plate surface, both on the upper and lower surfaces. The center is serious, and it gradually decreases to both sides, and the degree of contusion ranges from tens of meters to hundreds of meters. Not equal, seriously affecting the yield of the flat area

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  • Prevention method for bruise of strip steel in hot rolling smoothing line

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0029] It should be noted that like numerals and let...

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Abstract

The embodiment of the invention provides a prevention method for bruise of strip steel in a hot rolling smoothing line. The prevention method comprises the following steps: a process of placing a rawmaterial roll in a leveling uncoiler, rotating a coiling block of the leveling uncoiler toward a reeling direction of the reeling machine to drive an inner ring of the raw material roll to rotate andswell, wherein the raw material roll is formed by rolling strip steel; in a process that the coiling block of the leveling uncoiler rotates, expanding the coiling block of the leveling uncoiler to swell the raw material roll; threading the raw material roll on the reeling machine; and starting turning after threading. The prevention method provided by the invention reduces the bruise rate of bruise of strip steel in the hot rolling smoothing line, improves the yield of a leveling area, and brings remarkable economical benefit for smooth production of strip steel.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a method for preventing contusion of hot-rolled flat line steel strips. Background technique [0002] The hot-rolled strip flattening and coiling unit is mainly used for high-quality carbon structural steel, weathering steel, ordinary carbon structural steel, automotive structural steel, boiler and pressure vessel steel, shipbuilding plate, pipeline steel, and welding gas cylinders at room temperature. Steel plates and low-alloy steels are used for leveling operations to improve the surface quality, shape and mechanical properties of the plates; carbon steels at room temperature are also repaired, sampled, coiled and re-coiled to improve the coil shape and remove hot-rolled steel. The part of the steel coils in production that does not meet the quality needs to meet the requirements of the contract, and also meet the different needs of different users for the weight of stee...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B15/00B21C47/18B21C47/30
CPCB21B1/22B21B15/00B21B2001/225B21C47/18B21C47/30
Inventor 孙腾飞陈永平彭振伟陶哲亮付宝胜崔金栋王树明
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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