Control method of slow-cooling steel wire rod loop
A control method and technology for steel wire rods, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve the problems of increased production cost, slow roller table speed, and random coiling of the wire, so as to prevent the random coiling of the wire. The effect of easy operation and improved processing efficiency
Inactive Publication Date: 2019-05-17
NANJING IRON & STEEL CO LTD
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Problems solved by technology
[0002] In recent years, due to the improvement of the equipment level of the high-speed wire rod mill unit, its maximum final rolling speed has reached more than 110m / s, the improvement of the rolling speed and the improvement of the wire rod processing efficiency, the requirements for the quality of the wire coil coil are getting higher and higher , while the slow cooling steel needs to ensure the tissue transformation time of the coil in the heat preservation cover, the speed of the roller table is slow, and the thick coil accumulation is easy to form a messy coil during coil collection, resulting in waste products and increasing production costs
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[0014] This embodiment provides a method for controlling the coil shape of slow-cooled steel wire rods, including pinch roll speed-up, laying head pallet adjustment and coil transport air-cooled roller table speed-up ratio, and laying head balance during installation test.
[0015] After the wire rod rolling ends and leaves the rolling mill, set a speed increase for the pinch roll to ensure the conveying capacity of the rolled piece; adjust the supporting plate of the laying machine up and down according to the size of the coil during spinning, so that when the coil is spinning Both sides can fall on the pallet at the same time; speed up each section of the air-cooled roller table, so that the coil can be evenly spread on the air-cooled roller table when it is transported on the air-cooled roller table.
[0016] For ordinary steel grades with a specification less than 8mm, the pressurization at the tail of the pinch roller is 2.5MPa, the adjustment angle of the support plate i...
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The invention discloses a control method of a slow-cooling steel wire rod loop, and relates to the technical field of metallurgy. The control method comprises the following steps: accelerating a clamping roller, regulating a spinning machine support plate, accelerating and proportioning a drum transportation air-cooling roller way, setting accelerated speed for the clamping roller after a materialis rolled on line and is separated from a rolling mill, thereby guaranteeing conveying ability on a rolled part; performing up-down regulation on the spinning machine support plate according to the loop size during spinning, and enabling the two sides of a drum to be dropped on the support plate during spinning; and accelerating each section of the air-cooling roller way, and enabling the drum tobe uniformly scattered on the air-cooling roller way while the drum is transported on the air-cooling roller way. The control method is easy in operation, can effectively control coiled loop qualityof the slow-cooling steel wire rod, reduces a re-judgment rate generated by the coiled loop quality, and reduces the production cost; and moreover, in a using process of a user, the orderly loop quality can guarantee that the user pulls and places wires smoothly, so that the user pulling wire breaking rate is reduced, and processing efficiency of the user is improved.
Description
technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method for controlling the shape of a slow-cooled steel wire coil. Background technique [0002] In recent years, due to the improvement of the equipment level of the high-speed wire rod mill unit, its maximum final rolling speed has reached more than 110m / s, the improvement of the rolling speed and the improvement of the wire rod processing efficiency, the requirements for the quality of the wire coil coil are getting higher and higher , and slow cooling steel needs to ensure the tissue transformation time of the coil in the heat preservation cover, the speed of the roller table is slow, and the thicker coil accumulation is easy to form a messy coil during coil collection, resulting in waste products and increasing production costs. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a method for controlling th...
Claims
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IPC IPC(8): B21B41/00B21B45/02
Inventor 王灿祥
Owner NANJING IRON & STEEL CO LTD