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Method for controlling DI material edge drop for six-roller mill

A technology of six-high rolling mill and control method, applied in rolling mill control device, metal rolling, metal rolling and other directions, can solve problems such as weak shape control, and achieve the effect of small scale of transformation, low cost and improved yield.

Active Publication Date: 2014-07-23
BAOSHAN IRON & STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The proposal of edge drop control has enriched the content of flatness control, but compared with the highly developed convexity and flatness control, edge drop control is in its infancy and is the weak link of flatness control

Method used

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  • Method for controlling DI material edge drop for six-roller mill
  • Method for controlling DI material edge drop for six-roller mill
  • Method for controlling DI material edge drop for six-roller mill

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Embodiment Construction

[0041] In combination with the specific embodiments of the present invention and the accompanying drawings, the application process of the technical solution will be further described.

[0042] The technical solution involved in this embodiment is carried out on the S4 frame of the 1420 unit. The S4 frame adopts a six-high rolling mill. Taking the production of DI materials with a width of 874mm-1062mm as an example, the width of the normally rolled strip steel is B=1062mm.

[0043] The six roll rolling mill in the present embodiment is as figure 1As shown, one side of the six-high rolling mill is called the driving side DS, and the side opposite to the driving side is the working side WS; there is a pair of intermediate rolls on the six-high rolling mill, which includes an upper middle roll above the strip Roller 1 and the lower intermediate roller 2 arranged under the strip, the upper intermediate roller 1 is provided with the first section 11 for edge drop control along its...

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Abstract

The invention discloses a method for controlling a DI material edge drop for a six-roller mill. The roller shapes of a pair of middle rollers of the six-roller mill are made to meet a curve f(x), the middle rollers comprise the upper middle roller arranged above strip steel and the lower middle roller arranged below the strip steel, the upper middle roller and the lower middle roller respectively comprise a first segment used for controlling the edge drop and a second segment not involved in edge drop control, the first segment of the upper middle roller is located on the drive side of the six-roller mill, the first segment of the lower middle roller is located on the work side of the six-roller mill, meanwhile, the upper middle roller moves by s from the drive side to the work side in the axial direction of the upper middle roller, the lower middle roller moves by s from the work side to the drive side in the axial direction of the lower middle roller by s, and then rolling is started. According to the technical scheme, the roller shapes meeting the curve f(x) are arranged on the middle rollers of the six-roller mill, control over the channeling roller quantity of the middle rollers is coordinated, the problem that thickness distribution of DI materials in the length and width direction is not even is solved, and the good control effect on the DI material edge drop is achieved.

Description

technical field [0001] The invention relates to a strip steel control method, in particular to a strip steel shape control method. Background technique [0002] As one of the most important products of the iron and steel industry, plate and strip also play a very important role in the development of the national economy. It is widely used in industry, agriculture, national defense and daily life. With the rapid development of modern industry and science and technology, users of various industrial enterprises have put forward more and more strict requirements on the quality of plates and strips. [0003] DI (Drawn-and-Ironed, high-speed electroplated tin-plated steel sheet) is a high-quality strip material, mainly used in the canning industry of carbonated beverages and beer packaging materials, and cans are a relatively common form of finished products. The dimensional accuracy of DI materials not only directly affects the product yield, but also has a greater impact on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/16
Inventor 王康健梁力平郑涛张清东
Owner BAOSHAN IRON & STEEL CO LTD
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