Plants for treating rolled steel products
AssigneeCentre de Recherches Metallurgiques-Centrum voor Research in de Metallurgie
InventorsMario Economopoulos, Jean Y. Respen
Life of this patent
Estimating the term…
Abstract
The plant includes quenching apparatus having cooling means for directing cooling liquid onto a rolled product passing through the quenching apparatus from a rolling mill. The cooling liquid is removed from the rolled product, by a liquid, and optionally, by scraping or brushing. The quenched product is cut up, e.g. by shears, before passing to a still-air cooling area.
Claims10
A plant for treating a rolled steel product, comprising, in combination with a rolling mill, in sequence, a quenching apparatus through which the rolled steel product passes from the outlet of the rolling mill, and a still-air cooling area, the quenching apparatus having a series of cooling means for directing cooling liquid onto the rolled product passing through the quenching apparatus, the plant further comprising liquid removal means including only liquid means for completely removing the cooling liquid from the rolled product, the liquid removal means being located after each of the cooling means, and cutting means for cutting the product between the quenching apparatus and the still-air cooling area, the cooling means comprising at least two ducts spaced apart one after the other on a common axis, an enlarged extension enveloping the annular passage defined between the ends of the two ducts spaced from one another, and means for supplying fluid under pressure to the annular passage.
A plant for treating a rolled steel product, comprising, in combination with a rolling mill, in sequence, a quenching apparatus through which the rolled steel product passes from the outlet of the rolling mill, and a still-air cooling area, the quenching apparatus having a series of cooling means for directing cooling liquid onto the rolled product passing through the quenching apparatus, the plant further comprising liquid removal means, including only liquid means and a scraper, for completely removing the cooling liquid from the rolled product, the liquid removal means being located after each of the cooling means, and cutting means for cutting the product between the quenching apparatus and the still-air cooling area, said scraper being in the form of a helical wire with spaced turns, the helical wire being arranged substantially horizontally.
A plant for treating a rolled steel product, comprising, in combination with a rolling mill, in sequence, a quenching apparatus through which the rolled steel product passes from the outlet of the rolling mill, and a still-air cooling area, the quenching apparatus having a series of cooling means for directing cooling liquid onto the rolled product passing through the quenching apparatus, the plant further comprising liquid removal means including only liquid means for completely removing the cooling liquid from the rolled product, the liquid removal means being located after each of the cooling means, and cutting means for cutting the product between the quenching apparatus and the still-air cooling area, in which the cooling means comprises a helical pipe with spaced turns having at the inner side a plurality of orifices oriented towards its axis.
Dependencies are inferred from the claim text.