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A continuous annealing furnace roller detection method

A technology of continuous annealing furnace and detection method, applied in the direction of furnace, heat treatment furnace, furnace type, etc., to achieve the effect of stable and reliable product quality and inhibition of scratches on steel strips

Active Publication Date: 2017-12-26
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: how to effectively monitor whether the furnace roller is deformed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The cold-rolled silicon steel plant of Shanxi Taigang Stainless Steel Co., Ltd. began operating the present invention in February 2011. The monthly tonnage of non-conforming products produced before and after the system was in operation is recorded below.

[0008] Tonnage of non-conforming products with scratches before system operation (2010, 1~2011, 1)

[0009] January

February

March

April

May

June

July

August

September

October

November

December

January

20.58

32.895

49.315

0

3.105

14.995

18.165

8.380

4.8

3.21

4.33

0

14.03

[0010] Total: 173.805 tons Sample mean: 13.37 tons Sample variance: 208.125

[0011] The tonnage of unqualified products folded before the system runs (2010, 1~2011, 1)

[0012] January

February

March

April

May

June

July

August

September

October

November

December

January

2.75

0 ...

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PUM

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Abstract

The invention relates to a method for detecting whether furnace rollers of a continuous annealing furnace are deformed. The speed parameters and torque parameters in the continuous annealing furnace roller drive motor frequency converter are transmitted to the computer in real time, and the computer compares the obtained speed parameters and torque parameters with the preset speed parameters and preset torque parameters. If either, at the same time or, It means that the bending deformation of the furnace roll needs to be overhauled. The beneficial effect of the invention is that it can effectively suppress the sudden increase in the number of unqualified products with scratches and folds on the steel strip, and ensure stable and reliable product quality.

Description

technical field [0001] The invention relates to a method for detecting whether furnace rollers of a continuous annealing furnace are deformed. Background technique [0002] At present, continuous annealing furnaces are used in the production of non-oriented silicon steel. The furnace space of the continuous annealing unit is a high-temperature fully enclosed space. The furnace roller plays the role of supporting and conveying the steel belt in the furnace. With the progress of production, the furnace rolls will inevitably appear bending deformation due to wear and tear, resulting in surface quality problems such as scratches and creases on the surface of the steel strip. However, due to the high temperature and fully enclosed space in the furnace, it is impossible to detect the operation status of the furnace rollers in the furnace. Contents of the invention [0003] The technical problem to be solved by the invention is: how to effectively monitor whether the furnace r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/54C21D1/26C21D11/00
Inventor 张丹丹闫岩蔡亚龙
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD