Kawasaki Steel Corporation

Other

Mitsubishi Heavy Industries Limited

Mitsubishi Jukogyo Kabushiki Kaisha

Kawsaki Steel Corporation

Toshitane Matsukawa

Chiaki Kato

Toru Sato

Shinji Kojima

Toshio Fujimura

Kenichi Unoki

Shun Suhara

Kazumasa Mihara

Hisakazu Mizota

Masahiko Tada

Haruhiko Ishizuka

Yoshio Yoshimoto

Katsumi Kurokawa

Kiyoshi Shibuya

Nozomu Tamura

Saburo Moriwaki

Ritsuo Hashimoto

Takuo Imai

Noriyuki Kawata

Kenji Nakagawa

Noriaki Inoue

Kunihiro Ito

Kouichi Kushida

Kazuyuki Katoh

Susumu Yuhara

Yasuo Hukada

A hot dip coating apparatus enables stable and continuous production of a coated steel strip having a high degree of uniformity of the coating quality over the breadth of the steel strip and clean coated surfaces free of deposition of dross. The hot dip coating apparatus has a bottom slit through which a steel strip to be coated is introduced and pulled upward through the coating tank, and an electromagnetic sealing device which applies a magnetic field to the molten metal in the coating tank so as to hold the molten metal inside the tank. The coating tank is provided at its top with an overflow dam for allowing the molten mental to overflow out of the coating tank. The apparatus also has a molten metal supply system which produces a circulating flow of the molten metal through the coating tank. The molten metal supply system has molten metal buffers which communicate with a molten metal supply passage and from which the molten metal is discharged towards the steel strip.

Hot dip coating apparatus

A hot dip coating apparatus and method, enables stable and continuous production of a coated steel strip having a high degree of uniformity of the coating quality over the breadth of the steel strip and clean coated surfaces free of deposition of dross. The hot dip coating apparatus has a bottom slit through which a steel strip to be coated is introduced and pulled upward through the coating tank, and an electromagnetic sealing device which applies a magnetic field to the molten metal in the coating tank so as to hold the molten metal inside the tank. The coating tank is provided at its top with an overflow dam for allowing the molten metal to overflow out of the coating tank. The apparatus also has a molten metal supply system which produces a circulating flow of the molten metal through the coating tank. The molten metal supply system has molten metal buffers which communicate with a molten metal supply passage and from which the molten metal is discharged towards the steel strip.

Hot dip coating apparatus and method

In a method of manufacturing a wide metal thin strip, molten metal is ejected onto the surface of a rotating cooling roll. The nozzle shape permits manufacture of wide metal thin strips having a uniform thickness in the width direction.

Method of manufacturing a wide metal thin strip

Method and apparatus for holding molten metal

Apparatus and method of producing a thin metal ribbon by pouring a molten metal onto the surface of a quench roll rotating at a high speed so as to rapidly cool and solidify the metal to form the ribbon, separating the ribbon from the quench roll and conveying the same to a take-up device. A compressed gas is blown tangent to the quench roll to separate the ribbon from the quench roll. The separated ribbon is sucked and caught by a suction conveyor which runs at a velocity greater than the speed of production of the thin meal ribbon thereby imparting tension to the ribbon.

Method and apparatus for producing thin ribbon

Continuous forging apparatus for cast strand

A method of continuous compression forging, with a compression forging anvil, the final solidified region of cast steel drawn out from a mold for continuously casting, comprising the step of: compressing said cast steel with said anvil at a compressing cycle which meets the following conditions: ##EQU1## where t: the compressing cycle (sec), .delta.: the overall thickness reduction, Vc: the casting speed (mm), D: the cast steel thickness before compression forging, .theta.: the inclination angle (.degree.) with respect to the flat surface of the anvil. An apparatus for continuous compression forging continuously cast steel comprising: at least a pair of anvils for vertically holding the pass line of cast steel drawn out from a mold for continuous casting and continuously compression-forging the final solidified region of the moving cast steel by moving the anvils toward and away from each other; a frame; a slider; and links, wherein either of said anvils is disposed within said frame which has a port through which said cast steel is introduced, another anvil is secured to said slider which can be reciprocated along a sliding surface formed in said frame, and said frame and said slider are hung from a crank shaft via said links, said crank shaft acting to move said anvils toward and away from each other.

Method and apparatus for continuous compression forging of continuously

A segregation preventive or eliminative operation in a continuous casting process is performed under the following conditions:

Growing community of inventors

Chiba, Japan

Toshitane Matsukawa