A Method of Reducing Edge Drop of Tinplate

A technology of tinplate and edge drop, which is applied in the field of steel rolling, can solve the problems of difficult control of edge waves and poor edge drop control ability of tinplate and strip steel, and achieve the effect of uniform thickness distribution and improved edge drop control ability

Active Publication Date: 2019-04-12
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for reducing the edge drop of tinplate, which solves the technical problems in the prior art that the edge drop control ability of tinplate strip steel is poor and the edge wave is not easy to control, and achieves the improvement of The technical effect of the ability to control the edge drop of the tin plate and the uniform thickness distribution of the tin plate

Method used

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  • A Method of Reducing Edge Drop of Tinplate
  • A Method of Reducing Edge Drop of Tinplate
  • A Method of Reducing Edge Drop of Tinplate

Examples

Experimental program
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Effect test

Embodiment

[0062] Rolling mill 1420 cold rolling unit S1 ~ S3 racks were tested, aiming at the roll shape parameters of the middle roll of this unit, used to produce tin plate with a width of 874mm ~ 1062mm.

[0063] (1) detect each parameter of the intermediate roll of described rolling mill;

[0064] Among them, it is detected that L in the rolling mill IEDC 200mm, L IMR It is 1420mm.

[0065] (2) calculate the roll shape curve of the middle roll according to the edge drop control section length of the middle roll;

[0066] choose a 1 2.38780e -3 , a 2 is -3.85635e -6 , a 3 2.42966e -9 ; put a 1 、a 2 、a 3 , L IEDC , L IMR Substitute into the formula g(x) LMR =a 1 x 2 +a 2 x 4 +a 3 x 6 Among them, the roll shape curve function of the middle roll is obtained.

[0067] (3) setting the shape of the intermediate roll according to the roll shape curve of the intermediate roll;

[0068] (4) The intermediate roll is shifted, and the amount S of the intermediate roll is co...

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Abstract

The invention discloses a method for lowering the edge drop of a tin plate. The method for lowering the edge drop of the tin plate is applied to a rolling mill and comprises the steps that all the parameters of an intermediate roll of the rolling mill are detected, wherein all the parameters of the intermediate roll of the rolling mill comprise the length LIEDC of an edge drop control section of the intermediate roll and the full length LIMR of a roll body of the intermediate roll; according to the length of the edge drop control section of the intermediate roll, a roll shape curve of the intermediate roll is calculated; according to the roll shape curve of the intermediate roll, the shape of the intermediate roll is set; and the roll shifting amount S1 of the intermediate roll is controlled. The method for lowering the edge drop of the tin plate solves the technical problems that in the prior art, the control capacity of the strip steel edge drop of the tin plate is poor and edge waves are difficult to control and achieves the technical effects of improving the control capacity of the edge drip of the tin plate and enabling the thickness distribution of the tin plate to be uniform.

Description

technical field [0001] The invention relates to the technical field of steel rolling, in particular to a method for reducing the edge drop of a tinplate. Background technique [0002] Strip steel sheet is one of the most important products in the steel industry and plays a very important role in the development of the national economy. Strip steel sheets are widely used, such as tinplate, tinplate is mainly used for carbonated beverages and beer cans, and its dimensional accuracy not only directly affects the product yield, but also has a greater impact on the forming process of cans. Strip edge drop is one of the important indicators of strip product quality. The rolling mill in the prior art has poor ability to control the edge drop of the tinplate, and the edge wave is not easy to control, and cannot meet the customer's requirements for the lateral thickness difference and the shape of the plate. Contents of the invention [0003] The technical problem to be solved by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/16B21B37/30
CPCB21B37/16B21B37/30B21B2261/04B21B2263/06B21B2267/18
Inventor 刘旭明张晓峰唐伟陈辉文杰于孟桑胜峰王东洋万军齐海峰关军杨洪凯刘学良郭敏闻杨缪军红刘鸿明齐鹏飞
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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