Method for determining elastic coefficient of load shedding spring of continuous casting stopper rod flow control mechanism

Abstract

The invention relates to a method for determining the elastic coefficient of a deloading spring of a continuous casting stopper rod flow control mechanism. The method comprises the following steps: step 1, determining the down stroke of a stopper rod; step 2, determining a load shedding spring coefficient of an executing mechanism; step 3, effectively distributing the stroke of the stopper rod and selecting the load shedding spring coefficient according to the technology, so that stable flow control of the stopper rod can be well realized. Therefore, various abnormal hidden dangers of unstable flow control and even flow control failure caused by overload of the flow control mechanism are greatly reduced, and stable production of continuous casting and stable quality of casting blanks are guaranteed.

Description

technical field [0001] The invention relates to a method, in particular to a method for determining the elastic coefficient of a load-reducing spring of a continuous casting stopper rod flow control mechanism, and belongs to the technical field of iron and steel metallurgy continuous casting. Background technique [0002] In the current continuous casting process of the iron and steel industry, the control method of controlling the injection of molten steel in the tundish into the crystallizer through the stopper rod (commonly known as the stopper rod flow control method), due to its flow control accuracy and the commonly used stopper rod argon blowing technology, is widely used in China. It is widely used in the continuous casting process of most steel mills abroad. The stopper rod flow control mechanism uses an electric cylinder or a hydraulic cylinder, and cooperates with the liquid level detection system to realize the automatic control function of the continuous casting...

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Problems solved by technology

The application number is 201620027988.5. The patented technology of the stopper rod position adjustment device in the pouring process is also to tighten or loosen the cross arm that fixes the stopper rod by turning the adjustment nut to supplement the displacement of the stopper rod due to the impact of molten steel, thereby solving the problem of bias flow , how to set the stopper rod stroke, how to safely and effectively reduce the load of the mechanism driving device is not involved at all

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