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On-line Measurement Method of Continuous Casting Roll Gap in Continuous Casting Unit

A technology of continuous casting rolls and units, which is applied in the configuration of indicating equipment/measuring equipment, casting equipment, manufacturing tools, etc. The effect of precision and efficiency, reduced labor intensity, guaranteed quality and yield

Active Publication Date: 2017-06-06
SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since a continuous casting unit has hundreds of roll gaps, manual measurement is labor-intensive and has low precision, which directly affects the quality and output of continuous casting slabs and reduces the efficiency of roll gap measurement

Method used

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  • On-line Measurement Method of Continuous Casting Roll Gap in Continuous Casting Unit
  • On-line Measurement Method of Continuous Casting Roll Gap in Continuous Casting Unit
  • On-line Measurement Method of Continuous Casting Roll Gap in Continuous Casting Unit

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Embodiment Construction

[0024] Such as figure 2 and image 3 As shown, the online measurement method of the continuous casting roll roll gap of the continuous casting unit of the present invention comprises the following steps:

[0025] Step 1. The roll gap meter 3 of the continuous casting machine advances between the inner arc roll row 1 and the outer arc roll row 2, and the spherical probe C on the roll gap meter 3 1 and lower probe C 2 Real-time detection of the corresponding inner arc roller G in inner arc roller row 1 and outer arc roller row 2 respectively 1 and outer arc roller G 2 The distance, the forward speed V of the roll gap meter 3 is known, and the inner arc roller G 1 and outer arc roller G 2 Radius R, spherical probe C on the roll gap gauge 1 Radius r, spherical probe C on the roll gap gauge 1 and lower probe C 2 The real-time measurement value of D 上 (t) and D 下 (t), where t is the measurement time;

[0026] Step 2. In the actual measurement process, the roll gap value ...

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Abstract

The invention discloses an online measuring method for a continuous casting roller gap of a continuous casting unit. The method includes the steps that from the aspects of actual measurement waveforms of an upper probe and a lower probe of a roller gap instrument, the positions of arc tops are found when the arc shapes appear, and therefore the moment T0 when the upper probe passing by the corresponding inner arc roller arc top and the moment T1 when the lower probe passing by the corresponding inner arc roller arc top are judged; the advancing distance L of the roller gap instrument within the time period of |T1-T0| according to the known running speed V of the roller gap instrument, and the perpendicular distances between the axes of inner arc rollers and the axes of the probes are obtained; real-time roller gap measurement data are obtained according to the accurate expression for calculating the roller gap by simplifying the calculation formula. According to the online measuring method, the roller gap of continuous casting rollers is measured in real time, measurement accuracy and measurement efficiency of the roller gap are improved, the labor intensity of measurement work is lowered, and the quality and the yield of continuous casting slabs are ensured.

Description

technical field [0001] The invention relates to an on-line measuring method for the roll gap of continuous casting rolls of a continuous casting unit. Background technique [0002] Each continuous casting production line selects the optimal roll gap control curve according to the steel solidification law and the structural characteristics of the casting machine. The design of the roll gap curve directly affects the product quality of the continuous casting slab. When the roll gap is too large, it is not conducive to Improve center segregation and center porosity; if the roll gap is too small, the cast slab will receive excessive extrusion, causing the unsolidified and solute-rich molten steel to flow to the adjacent belly area, forming segregation, and also leading to internal cracks. In severe cases, the continuous casting rolls will be damaged. [0003] Such as figure 1 As shown, the continuous casting roller row in the continuous casting machine is composed of inner arc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D2/00B22D11/16
Inventor 杨大雷陈平
Owner SHANGHAI BAOSTEEL IND TECHNOLOGICAL SERVICE
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