Rolling mill roll for a hot train of rolls

Details Rolling mill roll for a hot train of rolls Rolling mill roll for a hot train of rolls

1983-04-29

1985-03-26

Rutledge, L. Dewayne

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

72366, 29132, 291295, 75128R, 75128C, 428681, 428683, 428684, 428685, C22C 3816

Patent

active

045073660

ABSTRACT:
The object of the invention is to improve the performance of the rolls of roughing and finishing stands of a hot strip train or mill and in particular to retard as far as possible the banding phenomenon, namely the phenomenon of the incrusting of hard oxides or scale formed at the conventional rolling temperatures.
For this purpose, the roll is made, at least in the working region thereof, from a chrome steel in which the ratio between the respective contents of chromium and carbon is between 7 and 12 and in which the content of equivalent carbon is between 1.5 and 1.7%. This content of equivalent carbon is calculated as the sum of the content of carbon and the content of chromium, the latter being given a coefficient 0.05.

REFERENCES:
patent: 3553993 (1971-01-01), Frostich
patent: 3855015 (1974-12-01), Nemoto et al.
patent: 3968551 (1976-07-01), Miyashita
patent: 4035159 (1977-07-01), Hashimoto et al.
patent: 4043843 (1977-08-01), Tanczyn
patent: 4064608 (1977-12-01), Jaeger
patent: 4365995 (1982-12-01), Mori
patent: 4436791 (1984-03-01), Bocquet

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