Method and device for machining circular billet

A billet and round technology, applied in the field of round billet continuous casting, can solve the problems of slipping billet and difficult to control billet quality, and achieve the effect of small roundness error, reducing roundness error and improving billet quality.

Active Publication Date: 2016-12-21
QINHUANGDAO SHOUGANG CHANGBAI MOLD
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  • Abstract
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Problems solved by technology

[0004] In the original technology of round billet continuous casting, the ellipticity of the billet is mainly controlled by controlling the pressure of the rollers of the billet drawing and leveling machine, but the pressure is too small to easily cause accidents such as "sliding billet", and when the roundness error of the billet is required to be high Difficult to control the quality of the slab

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  • Method and device for machining circular billet
  • Method and device for machining circular billet
  • Method and device for machining circular billet

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Embodiment Construction

[0029] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] The object of the present invention is to provide a method and device for processing a round steel billet, which overcomes the phenomenon in the prior art that the circular billet is "flattened" due to straightening, resulting in excessive roundness of the billet.

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction...

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Abstract

The invention discloses a method and device for machining a circular billet. A copper tube blank is machined into a crystallizer copper tube with the inner cavity section being oval, the circular billet is machined through the oval crystallizer copper tube, an oval billet is obtained through continuous casting by means of the oval crystallizer copper tube, and then the oval billet is straightened on a straightener to obtain the circular billet. According to the method and device, traditional technical prejudice is overcome, the defect of flattening in the prior art is utilized, the oval section of the billet can be more approximate to a circular section under the pressure effect of a pulling-straightening roller on the oval billet through flattening during straightening, the roundness error of the billet is smaller than that of a billet which is drawn through a circular crystallizer copper tube, and the roundness error of the billet can be directly and effectively reduced.

Description

technical field [0001] The invention relates to the technical field of continuous casting of round billets, in particular to a method and device for processing round billets. Background technique [0002] Round billet continuous casting has certain requirements on the roundness error of the steel billet, especially the round billet used for rolling steel pipes, usually has higher requirements on the roundness error precision of the billet. [0003] At present, the cross-sectional shape of the copper tube of the round billet continuous casting mold is circular. After being straightened by the tension leveler, under the pressure of the tension leveler roller, the billet will inevitably be "flattened", so that the billet will be round. In severe cases, unqualified products will be produced due to the out-of-tolerance roundness of the steel billet. [0004] In the original technology of round billet continuous casting, the ellipticity of the billet is mainly controlled by contr...

Claims

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Application Information

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IPC IPC(8): B22D11/04B22D11/12C22F1/08
CPCB22D11/0406B22D11/1226C22F1/08
Inventor 刘志祺段玮赵宗华隋大鹏王洪志乔俊杰李雪静刘春岩马龙陈玉星
Owner QINHUANGDAO SHOUGANG CHANGBAI MOLD
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