Online monitoring method for arc alignment of fan-shaped sections
A sector and deformation technology, applied in electromagnetic measurement devices, electric/magnetic profile/curvature measurement, etc., can solve problems such as rising cracks in slabs, surface cracks in slabs, etc.
Inactive Publication Date: 2020-10-27
BAOSHAN IRON & STEEL CO LTD
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Problems solved by technology
If the accuracy of the arc alignment drops greatly, beyond the arc management range of the segment, it will lead to the occurrence of cracks on the surface of the slab
It is for this reason that when the casting machine is not in good condition, the incidence of slab crack defects increases after several heats are produced. Therefore, there is a big difference between the arc alignment of the offline segment of the casting machine and the online arc alignment, especially After a period of production, this problem will become more prominent
Method used
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[0012] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0013] like Figure 1~2 As shown, in the method for on-line monitoring of the sector segment arc of the present invention, an elastic connector 3 is arranged between two adjacent segment segments 1, 2, and the two ends of the elastic connector 3 are connected to the two segment segments respectively. 1, 2 connections, the elastic connector 3 is provided with a resistance strain sensor (not shown) that detects the deformation of the elastic connector 3; the resistance is collected by a computer (not shown) the resistance signal of the strain sensor, and calculate the strain of the elastic connector 3 according to the resistance signal.
[0014] When the relative position of the rollers adjacent to the two sectors 1 and 2 changes by Δd, the elastic connector 3 with the original length L will be deformed by ΔL, and at the same time, the sensitive ...
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The invention discloses an online monitoring method for arc alignment of fan-shaped sections. The method comprises the steps that: arranging an elastic connecting piece between two adjacent fan-shapedsections, enabling the two ends of the elastic connecting piece to be respectively connected with the two fan-shaped sections, and enabling the elastic connecting piece to be provided with a resistance strain type sensor for detecting the deformation of the elastic connecting piece; and acquiring a resistance signal of the resistance strain sensor through a computer, and calculating the dependentvariable of the elastic connecting piece according to the resistance signal. According to the online monitoring method for arc alignment of fan-shaped sections, the states of the fan-shaped sectionscan be monitored in real time, and great significance is achieved for maintenance of the fan-shaped sections of a continuous casting machine and improvement of casting blank quality.
Description
technical field [0001] The invention relates to the technical field of continuous casting machines, in particular to an on-line monitoring method for sector arcs. Background technique [0002] In the production process of metallurgical continuous casting, the internal and external quality of the slab is a matter of great concern to metallurgical workers. The internal quality of the slab is mainly manifested in uniform composition, no porosity, no shrinkage cavity, no cracks, etc. The reasons for these defects are, on the one hand, the inherent characteristics of the steel itself and the continuous casting process, and on the other hand, it has a lot to do with the precision of the continuous casting equipment, especially the arc accuracy of the sector. [0003] Segment to arc refers to the relative position of the rollers at the entrance and exit of two adjacent segments, and the measurement of sector to arc is very difficult to detect due to the limitation of casting machi...
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Login to View More IPC IPC(8): G01B7/28
CPCG01B7/28
Inventor 王迎春徐国栋徐荣军杨军郭亮亮
Owner BAOSHAN IRON & STEEL CO LTD