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A method for controlling the shape of oriented silicon steel wedge plate

A shape control, oriented silicon steel technology, applied in contour control, manufacturing tools, metal rolling, etc., can solve problems such as center offset, and achieve the effect of improving shape, eliminating strip edge waves, and uniform transverse dimensions

Active Publication Date: 2019-04-23
新万鑫(福建)精密薄板有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the deviation of the rolling center of wedge-shaped strip steel, the adjustment range of an intermediate roll (1st) has reached the limit limit of lateral displacement, which affects the artificial shape adjustment.

Method used

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  • A method for controlling the shape of oriented silicon steel wedge plate
  • A method for controlling the shape of oriented silicon steel wedge plate
  • A method for controlling the shape of oriented silicon steel wedge plate

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The thickness of the oriented silicon steel billet is 2.3mm and the width is 1300mm. The billet is cut from the middle, and the thicker strip on the working side of the rolling mill (that is, the side close to the main operator) is defined as volume A, and the thin strip on the working side is defined as volume B. Five positions are randomly selected to measure the thickness of the strip on the working side of the strip and the edge of the transmission side. The data are shown in Table 1:

[0029] Table 1:

[0030]

[0031] The measurement data shows that the thickness difference of the wedge-shaped plate after the billet is cut is in the range of 0.04-0.07mm, which meets the supply standard of hot-rolled billet.

[0032] Based on the length of the guide roll at the rolling exit of 850mm, the width of the billet is 650mm, and the experiment is carried out according to the standard rolling process. The distance between the edge of the strip and the edge of the guide ...

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Abstract

The invention relates to a plate shape controlling method for an oriented silicon steel plate, and particularly relates to a plate shape controlling method for an oriented silicon steel wedge-shaped plate. The method comprises the following steps: (1) cutting a raw material into equal coils A and B; (2) machining one end of an intermediate roll to be conical, wherein the taper of the last intermediate roll is on the operating side, while the taper of next intermediate roll is on the transmission side; (3) controlling the plate shape by adopting an intermediate roll shaft axial roll shape adjusting mechanism; and (4) controlling the plate shape by adopting an ASU rack radial roll shape adjusting mechanism. According to the method, the shape of a roll gap at the edge of a steel strip is changed by axial movement of the upper and lower intermediate rolls having certain taper at one end, so that the plate shape is adjusted; and according to two wedge-shaped plate coiled materials in different shapes, the changes of the taper length and taper height of one intermediate roll are adjusted, and the effective plane quantity of one intermediate roll is changed, so that the defect that the adjusting range of one side is limited by a limit value when one intermediate roll is adjusted is overcome, and the plate shape adjusting effect is improved.

Description

technical field [0001] The invention relates to a shape control method of an oriented silicon steel sheet, in particular to a shape control method of an oriented silicon steel wedge-shaped sheet. Background technique [0002] Strip rolling shape is very important for grain-oriented silicon steel, which directly affects technical indicators such as stacking coefficient and noise of transformer core, and is increasingly valued by manufacturers and users. The quality control of the plate shape not only improves the yield of the cold rolling process, reduces the broken strip, increases the output, but also directly increases the market share of the strip. [0003] The supply width of the cold-rolled billet of grain-oriented silicon steel is usually about 1300mm. For the 650mm twenty-high rolling mill, the billet needs to be cut before cold rolling. Due to the phenomenon that the blank is generally thick in the middle and thin on both sides, a wedge-shaped plate with one side th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/30
CPCB21B37/30B21B2263/04B21B2267/18
Inventor 全东华单勇芝金钢南孟凡娜张维林张爱春
Owner 新万鑫(福建)精密薄板有限公司
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