METHOD AND APPARATUS FOR CONTINUOUSLY QUENCHING A STEEL PLATE

• Main Authors: EBATA, SADAO, BANDO, SEIJI
• Format: Patent
• Language: English
• Published: 23.08.1989
• Edition: 4
• Subjects: CHEMISTRY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

A method of and apparatus for continuously quenching a steel plate (12) with cooling water, by passing the steel plate through a water storage vessel (10) containing the cooling water. The cooling water for cooling the upper side of the steel plate is introduced into the upper section of the water storage vessel from an upper portion of the latter and is exhausted from an upper portion of the same through, for example, overflow. The cooling water for cooling the lower side of the steel plate is introduced into the lower section of the water storage vessel from a lower portion of the latter and exhausted from a lower portion of the same. The cooling water is agitated and moved by impellers (32, 34) disposed In the upper and lower sections of the storage vessel in the direction of movement of the steel plate or in the direction opposite to the direction of movement of the steel plate which is clamped and fed linearly through the water storage vessel by means of upper and lower rolls (16,18). The water for cooling the upper side of the steel plate is circulated only through the upper section of the water storage vessel while the water for cooling the lower side of the steel plate is circulated only through the lower section of the water storage vessel.