Continuous casting soft press thickness measuring roller arranging and controlling method

A control method and light reduction technology, applied in the field of continuous casting and light reduction, can solve the problems of accurate measurement of slab thickness, deviation in process execution, inconsistent slab size, etc., to ensure stability, ensure stability, and control simple effect

A control method and light reduction technology, applied in the field of continuous casting and light reduction, can solve the problems of accurate measurement of slab thickness, deviation in process execution, inconsistent slab size, etc., to ensure stability, ensure stability, and control simple effect

CN107282904AActive Publication Date: 2017-10-24JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
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  • Continuous casting soft press thickness measuring roller arranging and controlling method

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Effect test

Embodiment 1

[0027] A continuous casting soft reduction thickness measuring roll and its control method in this embodiment, the thickness measuring roll includes a thickness measuring roll A and a thickness measuring roll B, and the arrangement method is to arrange the light reduction rolls respectively along the casting direction, Thickness measuring roll A is located at the forefront, thickness measuring roll B is set behind thickness measuring roll A, and subsequent light pressing is arranged behind thickness measuring roll B to execute each roll; the control method is: when the slab production reaches a steady state, the Thickness measuring roll A and thickness measuring roll B both adopt the pressure control mode, and a constant force of 200kN is applied to the upper roll, and the displacement sensor of thickness measuring roll A will collect the continuous casting slab thickness measurement values ​​A1, A2, A3, A4... and data processing, more specifically, the processed value A and th...

Embodiment 2

[0029]A continuous casting soft reduction thickness measuring roll and its control method in this embodiment, the thickness measuring roll includes a thickness measuring roll A and a thickness measuring roll B, and the arrangement method is to arrange the light reduction rolls respectively along the casting direction, Thickness measuring roll A is located at the forefront, thickness measuring roll B is set behind thickness measuring roll A, and subsequent light pressing is arranged behind thickness measuring roll B to execute each roll; the control method is: when the slab production reaches a steady state, the Thickness measuring roll A and thickness measuring roll B both adopt the pressure control mode, and a constant force of 300kN is applied to the upper roll, and the displacement sensor of thickness measuring roll A will collect the continuous casting slab thickness measurement values ​​A1, A2, A3, A4... and data processing, more specifically, the processed value A and the...

Embodiment 3

[0031] A continuous casting soft reduction thickness measuring roll and its control method in this embodiment, the thickness measuring roll includes a thickness measuring roll A and a thickness measuring roll B, and the arrangement method is to arrange the light reduction rolls respectively along the casting direction, Thickness measuring roll A is located at the forefront, thickness measuring roll B is set behind thickness measuring roll A, and subsequent light pressing is arranged behind thickness measuring roll B to execute each roll; the control method is: when the slab production reaches a steady state, the Thickness measuring roll A and thickness measuring roll B both adopt the pressure control mode, and a constant force of 250kN is applied to the upper roll, and the displacement sensor of thickness measuring roll A will collect the continuous casting slab thickness measurement values ​​A1, A2, A3, A4... and data processing, more specifically, the processed value A and th...

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Abstract

The invention relates to a continuous casting soft press thickness measuring roller arranging and controlling method. Thickness measuring rollers are arranged at the front ends of all soft press executing rollers and optimally arranged on the fan-shaped section. The thickness measuring rollers comprise a thickness measuring roller A and a thickness measuring roller B. The thickness measuring roller A is arranged before the thickness measuring roller B. When cast blank production reaches the stable state, a displacement sensor of the thickness measuring roller A compares a cast blank thickness measuring value within a period of time with a real-time value of a displacement sensor of the thickness measuring roller B, the thickness of a cast blank is determined, the thickness of the cast blank is corrected through a displacement control mode of the thickness measuring roller B, the thickness of the cast blank in the production process of whole casting is a constant value, and the prerequisite condition is provided for stable execution of the soft press technology.

Description

technical field [0001] The invention relates to the technical field of continuous casting soft reduction, and more specifically relates to a continuous casting soft reduction thickness measuring roller and a control method. Background technique [0002] The continuous casting of special steel has very high quality requirements for the continuous casting slab. The use of continuous casting light reduction plays a certain role in improving the center segregation and center porosity of the continuous casting slab, especially for the production of continuous casting slabs with large cross-section specifications. Light pressing has been regarded as one of the essential processes. The problem existing in the application of continuous casting soft reduction technology is that there will be deviations in the execution of the soft reduction process, which is mainly reflected in the inconsistency of the size of the billet of different steel types, and the difficulty of adjusting the t...

Claims

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Application Information

Patent Timeline
24 Oct 2017
Publication
CN107282904A
IPC
B22D11/12; B22D11/16
CPC
B22D11/1206; B22D11/16
Inventors
李振华; 钱刚