Apparatus for improving the quality of steel sections

Details Apparatus for improving the quality of steel sections Apparatus for improving the quality of steel sections

1977-09-19

1979-07-24

Lake, Roy

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

134 64R, 266113, 266114, C21D 954

Patent

active

041618009

ABSTRACT:
At the outlet of the finishing stand of a rolling mill, a cooling apparatus is arranged to surface quench only the outer layer of the flat face of a steel section by a cooling fluid. The cooling conditions are adjusted so that, at the outlet of the cooling zone, the unquenched parts of the section are at a temperature still sufficiently high to temper the quenched face, and so that the austenite is transformed into ferrite and carbides in the unquenched parts of the section.

REFERENCES:
patent: 3659428 (1972-05-01), Kunioka et al.
patent: 3687145 (1972-08-01), Schrader et al.

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