Abstract
Aimed at the complex demand of hot strip rolling mill in practicing, the configuration of the coiler and the technological process is analyzed. The arithmetic of coiling tension and the control process is introduced. The frame of the tension adjusting system is given. The coiler control system hardware is designed. The system is designed scientifically with steady control and meets demand of the market.
Highlights
In most modem hot rolling procedure, the strips are coiled up in continuity.Coiling is the last key production step in hot rolling procedure, which is done by the coilers
The second stage, when the strip tail through the last finishing mill and signal from 1 to 0, the speed of mandrel equals the speed of strip which switch from tension control to speed control, the speed of the hot run out table, pinch roll and wrapper roll is less than the speed of strip, the value of lag rate is given in man-machine interface by the console
The velocity is constant when rolling stable, the Φ/D is constant, according to T = 2iCmΦI/D, as long as adjust current I constant, it can realize the strip steel tension constant. It is automatic from the speed control switch to the tension control under the switch logic control
Summary
In most modem hot rolling procedure, the strips are coiled up in continuity.Coiling is the last key production step in hot rolling procedure, which is done by the coilers. The coilers are indispensable important equipment in hot strip rolling line. Their main task is to coil the strip out of the finishing mill, and transport to the working procedure. The core part of coiling control system is the tension control. The control effect of coiling tension is directly related to the production and quality of hot rolled strip steel, tension must be maintained constant in the process of coiling
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