A measuring device and measuring method for the hot state roll gap of the hydraulic segment of the continuous casting machine

Abstract

The invention discloses a measuring device and a measuring method for the hot state roll gap of a hydraulic segment of a continuous casting machine, comprising two mounting brackets for upper frame sensors at the outlet of the segment, two correspondingly connected brackets for the lower frame of the lower frame at the outlet of the segment, and two The upper frame sensor mounting bracket at the entrance of the root sector, the corresponding connected lower frame scale bracket at the entrance of the sector, the sensor mounting bracket of the upper frame at the exit of the sector, and the sensor mounting bracket of the upper frame at the entrance of the sector are all connected to the upper frame of the sector. The lower frame ruler bracket at the exit and the lower frame ruler bracket at the entrance of the fan section are connected to the lower frame of the fan section, and the displacement sensor and the inclination sensor are arranged on the sensor mounting bracket of the upper frame sensor at the fan section outlet and on the sensor installation bracket of the upper frame sensor at the fan section entrance . The invention provides guidance for the on-line roll gap control and off-line maintenance standards of the fan section, and also provides a beneficial basis for the analysis of casting slab quality defects.

Description

technical field [0001] The invention relates to the field of mechanical control of continuous casting machines, and more specifically, relates to a measuring device and a measuring method for hot state roll gaps of a hydraulic segment of a continuous casting machine. Background technique [0002] The application of the hydraulic segment of the slab continuous casting machine is in order to cooperate with the advancement of new continuous casting processes such as soft reduction. The main feature of the hydraulic sector is that the upper and lower frames of the sector are connected by four columns with hydraulic cylinders, and each cylinder is equipped with a position sensor. During the production process, the change of the roll gap is controlled according to the process requirements to achieve To achieve better control of slab quality defects such as slab segregation, slab internal cracks, and slab corner cracks, and to reduce abnormal stress on the sector and increase its s...

AI Technical Summary

Problems solved by technology

However, due to the fact that there are multiple hinge points in the connection between the upper and lower frames of the sector, the gap between the bearings of these joint points and the bearing seat will change with the use of time, the degree of maintenance and the degree of stress. Among them The bearing gap of the roller can be basically determined, but the gap change of the hinge point and the uncertainty of the remaining position during the cold state of the continuous casting machine are the biggest difficulties in the online cold state roll gap management accuracy, which will cause the roll gap to be detected in the cold state. (Using multi-functional roll gap meter and other equipment) there are overall jagged defects, and these jagged roll gaps not only seriously interfere with the cold state management of the continuous casting machine roll gap, but also have a certain impact on the continuous casting machine equipment and the quality of the billet. Whether the continuous casting machine can recover during the pouring process, and how much recovery has always been a big question

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