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TECHNOLOGIES AND AUTOMATIC CONTROL SYSTEMS FOR
THE PROCESSES OF ROLLING AND HARDWARE PRODUCTION
THE SYSTEM OF CONTROL OVER THE ROLLED STOCK CUTTING
PROCESS ON THE CONTINUOUS BILLET MILL (Version 1)
The system's purpose is to minimize the rolled stock scraps in the shape of crops and the amount of random length of the bars at the end of the main line of the continuous billet mill, as well as to keep a reliable record of the produced rolled stock.
The system's functions are:
- to measure the rolled stock parameters on the continuous billet mill.
- to measure the stock length at the exit from the roughing train of the continuous billet mill;
- to measure the semi-finished rolled stock length at the entrance into the finishing train of the continuous billet mill;
- to measure and control the free cutting length (without the cutting replenisher) on the flying shears;
- to measure the actual length of the cutoff bars;
- to determine the actual reduction ratio.
- to design the slitting plan for the main line of the continuous billet mill;
- rational nonresidual cutting;
- cutting into the bars of specified length according to the programmed setting;
- to control the length of the cutoff bars on the flying shears according to the cutting plan;
- to display the information about the process and its results on the special console of the main line post;
- to control the system's modes directly from the special console installed at the post of the main line of the continuous billet mill;
- to keep full record of the cutting process (full record of each ingot cutting etc.) with the data transfer to the factory automatic control system "Steel-rolled stock";
- to keep record of the metal, rolled on the continuous billet mill;
- to ensure the length of stock front end over the given technological range.
Hardware:
- Two microprocessor control systems on the basis of OCTAGON 5066 controllers;
- Special supervisor's console on the basis of OCTAGON 5081 controller for the cutting process display;
- Uninterrupted power supply APC UPS 650;
- Console switch MAXXTRO;
- Monitor, keyboard;
- The system is installed at the supervisor's post in the special case, produced by RITTAL Company.
Software: the operational system MS-DOS, computer languages "Assembler", CamBasic and "C++".
The system is introduced at the Bluming Mill of the JVC "Metalen" Ltd of the OJSC Enakievo Metallurgical Works.
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