Ishikawajima-harima Jukogyo Kabushiki Kaisha

Nippon Kokan Kabushiki Kaisha

Ishikawajima-harima Heavy Industries Co., Ltd.

Bhp Steel (jla) Pty. Ltd.

Shuzo Takahashi

Shiro Osada

Yutaka Tsuchida

Nobuhisa Hasebe

Hisashi Sato

Heiji Kato

Shu Ogawa

Masayuki Nakada

Akichika Ozeki

Hiroshi Dazai

Katsuyuki Sako

To suppress wear of side surfaces of end closures due to rotation of cooling rolls in a twin roll strip caster, a pair of housings 11 are provided, each arranged to face on end faces of one or the other ends of cooling rolls 1a and 1b, which are arranged substantially horizontally and in parallel with each other, so that it may be displaced toward and away from the end faces, rolling members 12 rotatably supported by each of said housings 11 so that they may contact the corresponding end faces of the rolls 1a and 1b, a thruster body 21 supported on each of the housings 11 so that it may be displaced toward and away from the corresponding end faces of the rolls 1a and 1b, and an end closure 3 loaded on each of the thruster bodies 21 so that it may closely contact upper portions of the end faces of the rolls 1a and 1b. When the end closure 3 is worn to a predetermined extent, then the rolling members 12 contact the end faces of the rolls 1a and 1b to thereby suppress wear of the end closure 3.

Twin roll continuous caster

Position sensors at an inlet of a mold cavity defined by upper and lower block molds detect distances from the passing upper and lower block molds. In response to outputs from the position sensors, any deflection of the leading end of the tundish nozzle, which can be inclined with respect to the melt outlet of a tundish, toward the upper or lower block molds defining the mold cavity is detected by a control device to generate a drive signal which is delivered to a hydraulic cylinder adapted to incline the tundish nozzle by extending or retracting the rod thereof, whereby the gaps between the leading end of the tundish nozzle and the upper and lower block molds are maintained uniform.

Pouring apparatus for moving-mold type continuous casting machine

A side dam block disposed along the widthwise end portion of a block mold is supported by springs such that the side dam block is pressed against the casting flat surface of the opposing block mold so that gap between the opposing block molds can be suitably adjusted.

Endless track type continuous casting machine

A dummy nozzle is used for alignment of a pouring nozzle upon insertion of the pouring nozzle in communication with a tundish into a mold cavity of an endless track type moving-block mold continuous casting machine.

Apparatus for aligning pouring nozzle in continuous casting installation

Downward force resulting from the block mold and its carrier of the upper mold assembly which move downwardly toward the upstream end of the mold cavity defined by the vertically spaced-apart upper and lower mold assemblies is transmitted to the block mold and its carrier of the upper mold assembly passing the upward path extending upwardly from the downstream end of the mold cavity so that the distortions of the cross-sectional configuration and size of the mold cavity due to the weight of the block molds and their carriers are prevented.

In a mold cavity and/or in horizontal cooling zones, upstream- and downstream-side gears are drivingly coupled to each other through an endless-track-like member to which the tensile force is exerted by a tensioner, so that gaps between the adjacent block molds can be eliminated and therefore intrusion and leakage of a cooling liquid and melt are prevented.

A tundish nozzle is independent from a tundish so that thermal deformations of the tundish are not transmitted to the tundish nozzle.

Apparatus for pouring molten metal

In a mold apparatus for an endless track type continuous casting machine of the type in which a plurality of cooling blocks are interconnected with each other in the form of an endless chain to assemble a cooling block chain which can define a straight wall; a pair of said cooling block chains are disposed such that the straight wall thereof define a mold; and the cooling block chains are moved in synchronism with the casting speed or rate, a plurality of cooling holes are extended through each cooling block in the direction perpendicular to the direction of the movement thereof and in parallel with the straight wall section thereof; one or more cooling water pipes are disposed along one side surface of said straight wall section of each cooling block chain and are provided with a plurality of nozzles in line with the cooling holes of the cooling blocks so that the cooling water is injected through the nozzles to their corresponding cooling holes of the cooling blocks which are moving, thereby cooling the cooling blocks in contact with a casting with the cooling water. Therefore, the cooling blocks can be cooled very effectively; a satisfactory shell growth rate can be attained; and break-out or the like can be avoided even when the cooling block chains are stopped in case of emergency.

Mold apparatus for endless track type continuous casting machine

In a block type moving mold continuous casting machine of the type wherein a pair of block molds group each consisting of a plurality of block molds interconnected with each other in the form of an endless track are disposed in opposed relationship to define a mold cavity therebetween; and molten metal is supplied from one open end of the mold cavity and a solidified casting is continuously withdrawn out of the other open end of said mold cavity, a method and installation capable of removing a block mold which has been thermally deformed during the casting process from a carrier in a simple manner and quickly replacing with a new or repaired block mold.

Method and installation for replacement of mold in block type moving

In an endless track type continuous casting installation of the type in which a mold cavity having variable thickness for a casting is defined by the combination of block molds each of which is of an L-shaped cross section and which are connected with each other in the form of a loop, thereby providing each of a pair of endless tracks, safety is ensured with the block molds of the pair of endless tracks are combined to define a mold cavity.

Growing community of inventors

Yokohama, Japan

Shuzo Takahashi