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Leveling machine, black strip acid-free derusting device using the same and method thereof

A technology of hot-rolled strip steel and tempering mills, applied in the field of tempering mills, can solve the problems of ineffective removal of iron scale, poor cleaning quality, and low service life, so as to increase the price and utilization rate, increase the service life, and reduce the The effect of production costs

Inactive Publication Date: 2009-01-28
武钢集团有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0006] In view of the drawbacks of the existing tempering machine that cannot effectively remove the iron oxide scale attached to it, the present invention provides a skin tempering machine, which can effectively solve the problem that the iron oxide scale adheres to the roll of the tempering machine
[0007] Aiming at the problems of poor cleaning quality and low service life in current acid-free derusting devices, the present invention provides an acid-free derusting device, which can greatly improve the service life and scrubbing effect of iron brushes

Method used

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  • Leveling machine, black strip acid-free derusting device using the same and method thereof

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] 1, a leveling machine mainly includes a frame 12, a leveling lower roll 13, and a leveling reduction roll 14. A roll wiper 15 is fixed on the frame 12, and the end of the roll wiper 15 and The smoothing lower roller 13 and the smoothing pressing roller 14 are in contact with each other. The roll wiper 15 can remove the iron oxide scale adhered on the surface of the roll during the rotation of the roll, avoiding the iron oxide scale being pressed into the strip steel again, thus reducing the difficulty of later removal.

[0033] It should be understood that the roll wiper 15 is not limited to be fixed on the frame 12, because in actual use it can be set at any convenient position as needed, as long as its end can be in contact with the roll to scrape it. The purpose is sufficient, so they should all fall within the protection scope of the present invention.

[0034] ...

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Abstract

The invention relates to a flattener, relative thermal rolling band steel non-acid scaling device and method, wherein said flattener comprises a roller cleaner (15) whose end contacts the lower roller and compression lower roller (14); the cleaner (15) can clean the ferric oxide in each rotation of roller, to improve work efficiency. And the scaling device comprises emulsion feeder (1), flattener (2), high-pressure water injector (3), iron brush (4), washing drier (5), and coiling machine (6). The invention can improve the service life and effect of iron brush. And the method comprises that adjusting the injected amount of emulsion to adjust the scaling quality and save cost.

Description

Technical field [0001] The invention relates to a leveler used in the rust removal process of hot-rolled strip steel, and an acid-free rust removal device using the leveler. Background technique [0002] In order to ensure the surface quality of the cold-rolled steel strip, the oxide scale on the surface of the hot-rolled steel strip must be removed before cold rolling. At present, the main method for iron and steel enterprises and steel processing enterprises to remove the surface scale of hot-rolled steel is to use sulfuric acid or hydrochloric acid for pickling, and the scale is dissolved by acid solution to achieve the purpose of rust removal. The rust removal of ordinary steel generally adopts bending peeling and then pickling, the medium used is sulfuric acid or hydrochloric acid; the rust removal of stainless steel generally adopts the method of hydrofluoric acid and nitric acid to dissolve the surface oxide scale; while the rust removal of silicon steel mainly uses surfac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C43/04B21B45/06B21B45/08B21B45/02B21B37/00B05B5/00
Inventor 张凤泉黄璞
Owner 武钢集团有限公司
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