Vibration detection and control method of plate blank continuous casting crystallizer vibration platform

A crystallizer vibration and vibration detection technology, applied in the configuration of manufacturing tools, casting equipment, indicating equipment/measuring equipment, etc., can solve the problems of unable to meet vibration parameters, unable to respond and generate corresponding control.

Inactive Publication Date: 2007-04-25
ZHEJIANG UNIV
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Problems solved by technology

Solve the problem that the current slab crystallizer vibration control system cannot respond and generate corresponding contr...

Method used

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  • Vibration detection and control method of plate blank continuous casting crystallizer vibration platform
  • Vibration detection and control method of plate blank continuous casting crystallizer vibration platform
  • Vibration detection and control method of plate blank continuous casting crystallizer vibration platform

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Embodiment Construction

[0028] The form of crystallizer vibration equation that the present invention adopts is the non-sinusoidal vibration waveform equation based on composite function, and this equation is the fundamental principle that method realizes control and detection to rely on, and the mathematical expression of this equation is:

[0029] y=-r(_) where

[0030] In the formula, y is the displacement in the vibration direction, the unit is mm; r is the vibration amplitude, the unit is mm; f is the vibration frequency, the unit is l / min; t is the time experience, the unit is s; e is the waveform coefficient, and the coefficient is used To adjust the skew rate of the vibration waveform, when e=0, what the waveform equation expresses is a sine wave on the time axis. This formula can conveniently express the vibration waveform equation under any slope condition, so it is the most ideal choice for the control method.

[0031] The skew rate of the waveform is a key parameter in the crystallizer...

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Abstract

The invention relates to a vibration checking controlling method of black casting crystallizer vibrator. Wherein, it comprises that: (1), collecting the 4 vertical vibration signals, 2 transverse vibration signals, 1 drawing speed Vc signal, and calculating out the phase difference between vertical signals, the frequency of each vertical vibration signal, the amplitudes of all vertical signals and vibration signals, the frequencies f and incline alpha of all vertical vibration signals; (2), comparing the phase difference or amplitude of transverse vibration with safety index, checking the frequency of each vertical vibration signal with safety index; (3), the crystallizer starts the process vibration control; (4), processes the vibration optimization control. The invention can stabilize the product quality and improve economic benefits.

Description

technical field [0001] The invention relates to a method for detecting and controlling the vibration of a vibrating table of a slab continuous casting crystallizer. Background technique [0002] Mold is the billet forming equipment in continuous steel casting, and it is also the heart equipment and key technology of continuous casting machine. Its function is to forcibly cool the high-temperature molten steel continuously injected into its inner cavity through the water-cooled copper wall, export its heat, and make it gradually solidify into a billet with the required cross-sectional shape and shell thickness. And make this core part still be the casting slab that is liquid continuously to pull out from the crystallizer lower mouth, create conditions for it to completely solidify in the subsequent secondary cooling zone. The main function of the crystallizer vibration device is to make the crystallizer move along the outer arc of the continuous casting machine according to ...

Claims

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Application Information

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IPC IPC(8): B22D11/16B22D11/114B22D2/00
Inventor 王友钊刘光穆吴非焦国华戴开发孟征兵
Owner ZHEJIANG UNIV
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