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US 4,415,143 AGranted
Continuous hardening device of steel plate
AssigneeKawasaki Steel Corporation
InventorSadao Ebata
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AssigneeKawasaki Steel Corporation
InventorSadao Ebata
Estimating the term…
A continuous hardening device of steel plate of a type wherein steel plate is continuously cooled and hardened by cooling water. The cooling water is continuously supplied into and exhausted out of a water vessel (10) provided in the path of the steel plate for cooling the same. A plurality of rollers (16, 18) supporting the steel plate on the upper and lower sides thereof to feed the same and a plurality of paddle wheels (32, 34) having axial shafts disposed in parallel with the rollers (16, 18) are provided in the water vessel (10). Each paddle wheel (32, 34) is disposed between adjacent rollers and close to the steel plate, and stirs and causes the cooling water to flow along the surface of the steel plate with a predetermined relative speed maintained between the cooling water and the steel plate. The cooling and hardening efficiency of the steel plate is substantially improved by the relative movement of the cooling water and the steel plate.
A continuous hardening device of steel plate wherein steel plate is continuously cooled by cooling water, characterized in that said steel plate is passed through a water vessel into and out of which said cooling water is supplied and exhausted for maintaining a continuous circulation of said water, a plurality of rollers for moving the steel plate and a plurality of paddle wheels located adjacent to the surface of the steel plate are provided in said water vessel, and said paddle wheels stir and cause cooling water to flow at a predetermined relative speed with respect to said steel plate.
A continuous hardening device of steel plate wherein steel plate is continuously cooled by cooling water, characterized in that said steel plate is passed through a water vessel into and out of which said cooling water is supplied and exhausted for maintaining a continuous circulation of said water, a plurality of rollers for moving the steel plate and a plurality of paddle wheels located adjacent to the surface of the steel plate are provided in said water vessel, and said paddle wheels stir and cause cooling water to flow at a predetermined relative speed with respect to said steel plate, each of said paddle wheels having an axial shaft disposed in parallel with axes of said rollers, and each of said paddle wheels being arranged between adjacent two of said rollers.
Dependencies are inferred from the claim text.