High-speed wire rod water-cooling backward control method
A control method and high-speed wire technology, applied in the direction of temperature control, etc., can solve problems such as waste detection, no water penetration, steel holding accidents, etc., and achieve the effects of convenient operation, improved performance indicators, and high degree of automation
Active Publication Date: 2012-05-30
SHOUGANG CORPORATION
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Problems solved by technology
However, since the front end of the wire rod is relatively thin when rolling small-size wire rods, under these two water-cooling controls, if the water-cooling start time is too early, the front end will be impacted by the water-cooling when passing through the water-cooling, resulting in damage to the finish rolling unit and pinch rolls. Steel holding accident between units
If the water cooling is turned on too late, it will cause a lot of water not passing through the front, resulting in a lot of waste inspection
Method used
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Embodiment 1
[0016] Embodiment 1: When high-speed wire rod is rolled in small gauge, at figure 1 In the reverse water supply mode selection position 1, select the reverse water supply mode, and then figure 1 Set the delay time at the middle reverse water supply delay time setting position 2. After the setting is completed, the fifth stage of the water tank will start automatically after the signal from the head of the wire comes, and the set fifth water supply delay time will start automatically. Water supply, and then after the delay set in the program, every 100ms, open a section of water tank, figure 1 After intermediate and finishing rolling, after 100ms of water supply in the fifth water tank at 3 places in the fifth water tank, figure 1 After the intermediate and finishing rolling, the fourth section of the water tank at 4 places is opened, and by analogy, after 400ms, figure 1 After the intermediate finish rolling, the first section of the water tank at 5 places the first section ...
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The invention discloses a high-speed wire rod water-cooling backward control method, belonging to the technical field of small-specification wire rod rolling in a high-speed wire workshop. The method comprises the following steps of: after fine rolling, when a wire rod front signal arrives, supplying water backward by five sections of water tanks from a fifth section of water tank to a first section of water tank in sequence via time delay, that is to say the water is supplied from the fifth section, then to a fourth section, to a third section, to a second section and finally to a first section. The invention has the advantages of greatly reducing steel congestion accidents of small-specification type of steel between a finishing rolling and a pinch roll during rolling, ensuring a stablefront tempcor process and changing uncontrollable head tempcor length into controllable head tempcor length.
Description
technical field [0001] The invention belongs to the technical field of small-size wire rod rolling in high-speed wire rod workshops, and in particular provides a water-cooled reverse control method for high-speed wire rods, which is suitable for controlled cooling of five-stage water tanks after finish rolling. Background technique [0002] At present, wire rod is one of the important varieties of steel products, widely used in construction and wire products industry. The in-depth development of my country's reform and opening up has put forward new requirements for wire rod production. As far as the production and construction of wire rod mills are concerned, the tasks faced are very arduous, mainly including optimizing technology and equipment, improving automation control level, improving wire rod quality, increasing and developing New varieties of wire rods, etc., so as to improve the high-tech content and high added value of the products, increase the market competitiven...
Claims
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IPC IPC(8): B21B37/76
Inventor 孙伟程亮
Owner SHOUGANG CORPORATION