Metal deforming – With cleaning – descaling – or lubrication of work or product – Mechanical cleaning
Patent
1978-10-16
1980-01-29
Combs, Ervin M.
Metal deforming
With cleaning, descaling, or lubrication of work or product
Mechanical cleaning
B21B 4504
Patent
active
041854845
ABSTRACT:
Hot rolled round stock is fed in a first stage through a pair of rotating work rolls having a rough, rugulose concave surface that frictionally engages the surface of the stock to deform the surface of the stock by the application of pressure thereto and thereby dislodge substantially all the mill scale therefrom. The engagement of the work rolls with the stock provides positive drive to the stock to rotate the stock so that the stock advances in a spiral course without skidding through the work rolls to a secondary scale remover that includes a descaling machine for removing the remaining scale from the surface of the stock. A plurality of blast units within a chamber of the descaling machine directs a stream of abrasive particles upon the entire surface of the stock to dislodge the remaining scale therefrom and form a bar free of scale. The bar is advanced in a third stage to a rolling mill that includes a plurality of cross-rolling units in a series arrangement. Each unit includes a pair of smooth work rolls that engage the surface of the bar to reduce the bar to a final dimension and finish for a subsequent treatment, such as coating or inspection for defects.
REFERENCES:
patent: 1914587 (1933-06-01), Wise
patent: 2163699 (1939-06-01), Paul
patent: 2242024 (1941-05-01), Dillon
patent: 2642763 (1953-06-01), Abramsen
patent: 3081524 (1963-03-01), Ballentine et al.
patent: 3250102 (1966-05-01), Howeler
Adams John M.
Combs Ervin M.
Price, Jr,. Stanley J.
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