Wedge control method for hot rolling strip steel

A control method and technology for hot-rolled strip steel, which are applied in the field of hot-rolled strip steel, can solve the problems of unreachable wedge shape control, blockade, and inability to realize mass production, and achieve the effect of reducing the wedge shape amount and meeting the requirements.

Active Publication Date: 2013-07-17
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When many iron and steel enterprises produce silicon steel, it is precisely because the wedge control fails to meet the product standards that a large number of blockades are caused, which restricts the normal production of this product and cannot realize mass production.

Method used

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  • Wedge control method for hot rolling strip steel
  • Wedge control method for hot rolling strip steel
  • Wedge control method for hot rolling strip steel

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Embodiment Construction

[0030] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] The hot rolling process steps of the strip mainly include raw material preparation: stack the slab raw materials in the slab warehouse, and after information checking and quality inspection, provide slabs for heating according to the production plan. Heating: Heating the slab to a suitable rolling temperature according to the process requirements. Rough rolling and finishing rolling: Roll the heated slab into finished strip steel with qualified size and shape that meet user requirements. Coiling: Coil the rolled steel strip into coils. Finishing: Stack the rolled strips and reprocess them according to user requirements. The hot strip wedge control method of the present invention is mainly embodied in the control of raw material preparation, heating, rough rolling and finish rolling process flow.

[0032] Raw material...

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Abstract

The invention discloses a wedge control method for hot rolling strip steel. According to the control method, by adopting a plurality modes of raw material preparation, micro-positive pressure control, roller shape design, rolling gap inclination amount control, adjustment on a spraying angle of a high-pressure water spray nozzle, fardage replacement, measuring and adjustment on centering degrees of a vertical roller and guide plates in the front and the rear sides of a rolling machine and the like, the wedge integral control is carried out on hot rolling of strip steel from multiple angles, multiple directions and multiple sections, thus a wedge amount of the strip steel can be effectively reduced, and the requirement on the wedge amount of the strip steel of a high-end product is met.

Description

technical field [0001] The invention relates to strip hot rolling technology, more specifically, relates to a hot-rolled strip wedge control method. Background technique [0002] Strip shape has always been the focus of research on improving the quality of hot-rolled products. The wedge shape of hot-rolled strip has an important impact on the post-hot-rolling process and cold-rolled production. Over the past ten years, various companies in the world have developed a series of new technologies for flatness control. At present, it is generally believed that the main factors affecting the shape of the strip are the crown and flatness of the strip, but in fact, the shape of the strip includes the section shape of the hot-rolled strip (convexity, wedge shape, edge thinning) and the flatness of the finished strip. Degree and other indicators, while these indicators are mutually influencing each other. The wedge control level of hot-rolled products is generally around 30μm, but t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/28
Inventor 张仁其幸利军
Owner BAOSHAN IRON & STEEL CO LTD
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