Metal deforming – By use of roller or roller-like tool-element – With modification or control of temperature of work – tool or...
Patent
1992-12-18
1993-11-09
Larson, Lowell A.
Metal deforming
By use of roller or roller-like tool-element
With modification or control of temperature of work, tool or...
239562, B21B 4502
Patent
active
052592294
ABSTRACT:
An apparatus for cooling thin-webbed H-beam steel includes means for forcibly spray cooling the flanges of the H-beam in intermediate and final hot rolling zones. The cooling is based upon tracking information with respect to predetermined positions along the length of the H-beam. A plurality of flow quantity control blocks are disposed in parallel with each having a three way valve having a water supply side port, a nozzle side port, and a water drain port. A plurality of on-off valves connect the nozzle side port to nozzles in a nozzle group to select nozzles based upon the flange width of the H-beam. A variable throttle mechanism maintains pressure loss at the water drain side equal to pressure loss at the nozzle side. Switching of the three way valve of one flow quantity control block can be carried out without affecting other flow quantity control blocks.
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Fujita Kazuo
Hadano Hiroaki
Hasegawa Hiroyuki
Hioki Takeshi
Horiuchi Yasushi
Larson Lowell A.
Nippon Steel Corporation
Schoeffler Thomas C.
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