Laminar cooling method for hot rolling
A laminar cooling and hot continuous rolling technology, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as inability to meet on-site production, inflexible upper and lower headers, etc. The desired effect of production
Active Publication Date: 2015-10-21
PANGANG GRP PANZHIHUA STEEL & VANADIUM
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Problems solved by technology
This method of configuring the upper and lower headers that can be used in each cooling mode is not flexible enough to meet the needs of on-site production
Method used
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[0017] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like numerals refer to like parts throughout. The embodiments are described below in order to explain the present invention by referring to the figures.
[0018] figure 1 A flowchart showing a laminar cooling method for hot continuous rolling according to an exemplary embodiment of the present invention.
[0019] refer to figure 1 , in step 101, the identification information of the cooling mode corresponding to the rolled strip is acquired. Here, the cooling mode may be various cooling modes such as front-stage cooling, rear-stage cooling, and two-stage cooling. The identification information of the cooling mode may be various suitable information indicating the cooling mode, for example, may be a label indicating the cooling mode (for example, English letters, numbers, etc.), a name of the cooling mode, and the like. ...
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The invention provides a laminar cooling method for hot continuous rolling. The method comprises the steps of (a) acquiring identification information of a cooling mode corresponding to a strip steel to be rolled; (b) acquiring switching value of upper headers and lower headers corresponding to the identification information in configuration files; (c) calculating the quantity N of the upper headers needing to be switched on and the quantity M of the lower headers needing to be switched on through a cooling model; (d) setting the acquired switching values, except for the first N switching values being the first index values, of the upper headers as the second index values, and setting the acquired switching values, except for the first M switching values being the first index values, of the lower headers as the second index values; and (e) transmitting the switching value of the upper headers and the switching value of the lower headers to a programmable logic controller, and controlling the upper headers and the lower headers with the switching values being the first index values to switch on by the programmable logic controller. According to the laminar cooling method, the upper headers and the lower headers available for various cooling modes can be flexibly configured.
Description
technical field [0001] The invention relates to the technical field of continuous hot rolling, and more particularly relates to a laminar flow cooling method for continuous hot rolling. Background technique [0002] In the production process of hot-rolled strip steel, after the strip steel leaves the finishing rolling area and before entering the coiler, the strip steel needs to be cooled by laminar flow to control the cooling rate and coiling temperature of the strip steel, and further improve the temperature of the strip steel. performance. The development of laminar cooling technology is mainly divided into two aspects. On the one hand, the development of process technology is mainly reflected in the progress of various cooling devices and cooling processes; on the other hand, the development of control technology is mainly reflected in control strategies, progress in control systems. [0003] In the control of laminar cooling, it is necessary to adopt different cooling...
Claims
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IPC IPC(8): B21B45/02
Inventor 雷红刚胡松涛曾虹云
Owner PANGANG GRP PANZHIHUA STEEL & VANADIUM