Emulsion spraying device for cooling and lubricating copper wire hot rolling roller

Abstract

The invention provides an emulsion spraying device for cooling and lubricating a copper wire hot rolling roller. The emulsion spraying device for cooling and lubricating the copper wire hot rolling roller comprises a spraying support and five spraying units which are fixed to the spraying support. The five spraying units include a first spraying unit, a second spraying unit, a third spraying unit,a fourth spraying unit and a fifth spraying unit which are all sequentially arrayed. Each spraying unit comprises a spraying pipe fixed to the spraying support in a welded manner and a nozzle installed on the spraying pipe. The five spraying units are provided with spraying unit center lines. The roller is provided with a roller symmetric face. All the spraying unit center lines are located on the roller symmetric face. By means of the emulsion spraying device for cooling and lubricating the copper wire hot rolling roller, more emulsion can successfully enter a rolling deformation zone, and therefore the lubricating condition of the rolling deformation zone is improved, the lubricating effect is intensified, the friction coefficient of the roller and a rolled piece in the rolling deformation zone is reduced, roller thermal fatigue cracks and a roller banding phenomenon are prevented from occurring, the service life of the roller is prolonged, and the surface quality of the rolled piece is improved.

Description

technical field [0001] The invention belongs to the field of spraying devices, in particular to an emulsion spraying device for cooling and lubricating hot rolling rolls of copper wire rods. Background technique [0002] In the process of hot-rolling wire rods, the temperature of the rolled piece is usually relatively high, and the high-temperature rolled piece will produce heat radiation to the roll. In the rolling deformation zone, the roll is in direct contact with the rolling piece, and the large temperature difference between the two makes the heat of the rolling piece transfer to the surface of the roll. The severe plastic deformation of the rolled piece will generate a lot of heat during rolling, and the friction between the roll and the rolled piece will also generate heat, which will be partially transferred to the surface of the roll. These reasons will cause the surface temperature of the roll to rise. In order to avoid thermal fatigue damage on the surface of t...

AI Technical Summary

Problems solved by technology

However, this emulsion spraying method determines that only a small amount of emulsion can enter the rolling deformation zone, the lubrication effect is limited, and the roll sticking phenomenon will occur under special process conditions

In addition, due to the nozzle angle setting of the existing emulsion spray device, the direct spray area of ​​the emulsion on the roll surface is relatively small, which affects the cooling and lubrication effects

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