Water spray leveling method in cold milling wet leveling production
A wet leveling and water mist technology, applied in the direction of roll, metal rolling, metal rolling, etc., can solve the problem of residual quality defects of leveling liquid, and achieve the effect of avoiding quality defects and protecting surface roughness.
Active Publication Date: 2013-11-20
WISDRI ENG & RES INC LTD
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[0006] The purpose of the present invention is to provide a water mist leveling method in wet leveling production of cold rolling, which solves the leveling liquid residual quality defects caused by leveling liquid channeling by changing the leveling liquid injection beam and the leveling liquid injection position
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[0021] A water mist leveling method in cold rolling wet leveling production, it comprises the following steps:
[0022] 1) Install a water mist leveling injection device on the entrance side of the wet tempering machine. The nozzle of the nozzle of the water mist leveling injection device faces the roll gap between the work roll and the backup roll, and the nozzle is located 200 meters away from the roll gap between the work roll and the backup roll. ~400mm (the distance from the nozzle to the roll gap is 200~400mm);
[0023] 2) When the temper rolling of the wet temper machine starts, the nozzle sprays misty leveling liquid (leveling mist); when the temper rolling ends, the nozzle stops spraying.
[0024] The nozzle is provided with an air input port and a leveling liquid input port, and a mixing valve for adjusting the flow rate of the air and the leveling liquid is provided on the nozzle; when the wet leveling machine starts rolling, input compressed air and leveling liquid...
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The invention belongs to the technical field of cold milling leveling and particularly relates to a water spray leveling method in the cold milling wet leveling production, which is applied to various cold milling leveling machine sets. The water spray leveling method in the cold milling wet leveling production is characterized by comprising the following steps that: 1, a water spray leveling spraying device is arranged at the inlet side of a wet leveling machine, spray openings of spray nozzles of the water spray leveling spraying device face to a gap formed between a work roller and a support roller, and the spray nozzles are positioned at a position with a distance being 200 to 400mm away from the gap of the work roller and the support roller; and 2, when the leveling milling of the wet leveling machine is started, the spray nozzles spray leveling liquid which is in a spray form, and when the leveling milling is completed, the spraying of the spray nozzles is stopped. The method solves the problem of leveling liquid residue quality defects caused by leveling liquid streaming through changing a leveling liquid spraying beam and a leveling liquid spraying position.
Description
technical field [0001] The invention belongs to the technical field of cold-rolling and leveling, and in particular relates to a water mist leveling method in cold-rolling wet-leveling production, which is applied to various cold-rolling and leveling units. Background technique [0002] The traditional wet leveling process is to spray leveling liquid to the entrance roll gap of the work roll of the tempering machine through the leveling liquid injection beam, and then blow a large amount of compressed air through the air purge beam at the exit of the tempering machine, and use the purge compression Air to remove residual leveling liquid on the strip surface (such as figure 1 shown). [0003] Such as figure 1 As shown, in the wet skinning process of the traditional wet skinning process, in the body 1 of the four-roller skin skinning machine, the pressing cylinder 2 presses against the support roll 3, the support roll 3 presses the work roll 4, and the work roll 4 drives the...
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IPC IPC(8): B21B45/02B21B27/10B21B28/02
Inventor 丁文红臧中海邹振华
Owner WISDRI ENG & RES INC LTD