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Continuous casting infrared camera shooting sizing error online continuous correction method

A technology of infrared camera and infrared camera, which is applied in the field of steelmaking and continuous casting, can solve the problems of manual adjustment, poor precision, waste, etc., and achieve the effect of improving precision

Active Publication Date: 2021-07-09
YANGCHUN NEW STEEL CO LTD +1
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Problems solved by technology

The control accuracy of continuous casting slab length directly affects the yield of casting slab. If the cut continuous casting slab is too long, it will cause a lot of waste. If the cut slab is too short, the required finished product cannot be rolled. Rod or Tube
Infrared camera continuous casting slab length measurement technology is the mainstream technology for slab sizing at present. However, in practical applications, due to the limited number of infrared camera length measurement and the angle of view deviation from the positioning position, this technology guides the flame cutting machine to complete There is still a deviation in the length of the cut slab that exceeds the allowable range, and the general error needs to be adjusted manually, and the accuracy is poor

Method used

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  • Continuous casting infrared camera shooting sizing error online continuous correction method

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Embodiment

[0022] A method for online continuous correction of continuous casting infrared camera sizing error, such as figure 1 shown, including the following steps:

[0023] S1. The infrared camera conducts the first round of slab cut-to-length cutting, and obtains the measurement error X of the starting point of the first point. 1 and cleavage site error X 末 , calculate the error ΔX, and take the cutting site error X of the first point 末 Measurement error with starting point X 1 Calculate the difference of ΔX=X 末 -X 1 .

[0024] S2. Use an infrared camera to measure the vertical distance H between the infrared camera and the slab, the vertical point o, and the scale value at the vertical point o is recorded as L 垂 , The angle α between the infrared camera and the billet at the cutting position, take the scale values ​​at the two cutting positions as L 末 and L 1 , L 1 It is the measurement starting point of the infrared camera.

[0025] S3, calculate tanα 1 =H / (L 垂 -L 1 ),...

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Abstract

The invention discloses a continuous casting infrared camera shooting sizing error online continuous correction method, relates to the technical field of steelmaking continuous casting, and solves the problem that precision is poor. According to the technical key points, the continuous casting infrared camera shooting sizing error online continuous correction method comprises the following steps that an infrared camera carries out casting blank sizing cutting for the first time, and an error delta X is calculated; the vertical distance H between the infrared camera and a casting blank is measured, and scale values at the two cutting positions are marked as Ltail and L1 respectively; and after the tan alpha is changed by one unit value, the obtained scale value of a second point is recorded as L2, and the actual cutting position of the second point is recorded as L2 true = L2 + / -X1 + / -delta X / delta tan alpha. According to the actual cutting length of the continuous casting blank, an error correction value is dynamically adjusted on line, so that the measured value is closer to an actual sizing value, the sizing precision of the continuous casting blank is improved, and important support is provided for accurately controlling the length and the weight of the continuous casting blank.

Description

technical field [0001] The invention relates to the technical field of steelmaking continuous casting, in particular to an online continuous correction method for continuous casting infrared camera sizing error. Background technique [0002] In the field of steelmaking and continuous casting technology, the sizing accuracy of continuous casting slabs is very important. The control precision of continuous casting slab length directly affects the yield of casting slab. If the cut continuous casting slab is too long, it will cause a lot of waste. If the cut slab is too short, the required finished product cannot be rolled. rod or tube. Infrared camera continuous casting slab length measurement technology is the mainstream technology of casting slab sizing now. However, in practical applications, due to the limited number of infrared camera length measurement and the angle of view deviation from the positioning position, this technology guides the flame cutting machine to compl...

Claims

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Application Information

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IPC IPC(8): B22D11/16B22D2/00
CPCB22D11/163B22D2/00
Inventor 聂志斌张阳荣朱国俊钟立明张立强刘逖徐军骆忠文谭杜高耀张迅
Owner YANGCHUN NEW STEEL CO LTD
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