Strip steel temperature process transition method

Abstract

The invention discloses a method of strip still temperature technology transition, which can realize automatic control even when the aim temperature of strip goals is greater than 20deg.C. During the strip still temperature technology transition, it uses the principle of high temperature priority when the original aim temperature is different, and when facing the hypothermia step, it omits hypothermia. When the strip still transits from low to high temperature, it warms the still in advance according to specification and speed of subasembly.

Description

technical field [0001] The invention relates to a strip steel temperature process transition method, in particular to a strip steel temperature ultra-limit process transition control method. Background technique [0002] There are basically two control methods for the strip temperature process transition in the continuous annealing heating furnace, namely manual control and computer model control. However, the current computer model control method can only be realized when the target temperature transition of the strip steel is less than 20°C. At present, the actual transition temperature is basically greater than 20°C, and often exceeds 100°C. For example, the strip steel is annealed from No. 72 The transition to No. 86, that is, the transition from 720°C to 860°C, cannot be realized by the computer model, and can only be realized by manual control by the operator, and manual control will lead to inaccurate temperature control accuracy of the strip. At the same time, due to...

AI Technical Summary

Problems solved by technology

However, the current computer model control method can only be realized when the target temperature transition of the strip steel is less than 20°C. At present, the actual transition temperature is basically greater than 20°C, and often exceeds 100°C. For example, the strip steel is annealed from No. 72 The transition to No. 86, that is, the transition from 720°C to 860°C, cannot be realized by the computer model, and can only be realized by manual control by the operator, and manual control will lead to inaccurate temperature control accuracy of the strip. At the same time, due to manual control, the operator holds The idea that the actual strip temperature should be high rather than low is often much higher than the target temperature, resulting in high gas consumption and energy waste

How to solve this problem has always been sought by craftsmen and technicians, but a good method has not been found

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