Kawasaki Steel Corporation

Hitachi, Ltd.

Saburo Moriwaki

Noboru Yasukawa

Tomoaki Kimura

Masayuki Onishi

Tetsuya Fujii

Nagayasu Bessho

Hirokazu Tozawa

Kenichi Sorimachi

Kiyoshi Shibuya

Toshikazu Sakuraya

Nozomu Tamura

Toru Sato

Hidenari Kitaoka

Yuki Nabeshima

Yoshiro Tomiyama

Mitsuru Sakurai

Yuji Miki

Masao Yukumoto

Shuji Takeuchi

Tsutomu Nozaki

Seiji Itoyama

Sumio Yamada

Toshitane Matsukawa

Michiharu Ozawa

Takao Koshikawa

Makoto Aratani

Hiroshi Nomura

Chikashi Tada

Shigeru Ogura

Hiromitsu Yamanaka

Kazuya Asano

Takayuki Kaji

Kazuo Arai

Takeshi Shiraishi

Shun Suhara

Mototatsu Sugizawa

Keiichiro Isomura

Kenji Nakagawa

Shuji Tanaka

Michio Suzuki

Hitoshi Osugi

Takeshi Higashihara

Shinichi Kaneko

Takahiro Mitumune

Masafumi Maeda

Masaki Takashi

Michio Ibaraki

Tsukasa Terashima

Yozo Tanino

Kazuyuki Katoh

Masaaki Kuga

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

System for removing non-metallic foreign matter in molten metal

Apparatus separates a thin metal strip produced from a molten metal from a surface of a cooling roll by rapidly solidifying using a single roll method and conveys and guides the separated thin strip downstream. A separation/tensioning/guiding unit is positioned adjacent the cooling roll to separate tension and guide the rapidly solidified thin strip, which unit includes a cooperating doctor blade in pressure contact with the cooling roll. A suction conveyor is provided downstream of the separation/tensioning/guiding unit.

Apparatus for separating and guiding a thin strip produced by casting

One or more streams of molten metal poured into a continuous casting mold are acted on magnetically by static magnetic fields, covering substantially the entire width of the casting mold, thereby reducing the speed of the molten metal streams from the immersion nozzle, unifying the flow profile of the molten metal in the mold, preventing trapping and accumulating of mold powders and inclusions into the cast products. Magnetic poles are provided which are at least as wide as or wider than the minimum width of the cast products and the iron core is arranged on the same face of the casting mold with mutually opposite polarities in the drawing direction. Even if casting conditions change from time to time, defects in final products made of the cast metal are substantially reduced.

Apparatus and method for continuous casting

A mold powder for use in continuous casting, containing specified amounts of CaO, Al.sub.2 O.sub.3, TiO.sub.2, Li.sub.2 O, BaO, MgO, F and Na.sub.2 O, and further containing at least one of BN and C as aggregate. The mold powder, when used in continuous casting of a steel rich in strong reducing metal elements such as Al, Ti, REM and so forth, remarkably suppresses generation of deterioration in the surface quality of the slab and break out of the slab which are attributable inferior lubrication.

Mold powder for continuous casting

Molten metal level control method and device for continuous casting

A side wall construction for a continuous belt caster includes a metallic side wall body and a refractory layer attached on the central portion of the side wall body. The metallic side wall body has side edge portion extending substantially in flush with the the surface of the refractory layer. The refractory layer is formed with a center projection of essentially triangular cross-section. The height of the peak of the projection is gradually decreased toward downstream of transfer direction of the liquidus and solidus metal. On the other hand, it may be possible to formulate the refractory layer as double layer construction of a heat insulating refractory layer and a wear-resistantive refractory layer.

Side wall construction for continuous belt caster

In order to securely hold a moving belt of a continuous casting device against selective movable side walls, a first group of rotatable control rods which are disposed in a first supply header and an adjacent exhaust header are arranged to produce narrow high pressure zones in the film defined between the cooling pad in which the header are formed and the moving belt. These zones can be selectively moved to juxtapose the side walls when the gap between the walls is adjusted. A second group of rotatable control rods which are disposed in second and third supply headers selectively heat the side edges of the belt which are relatively cool as compared with the center section which is exposed to molten metal. As the side walls are moved apart the width of the edge sections which are exposed to pre-heated coolant can be reduced and the amount of normal temperature coolant applied thereto also increased.

Cooling pad arrangement for belt caster type continuous casting device

A belt type cast sheet continuous caster of the type comprises a pair of opposed circulatorily movable belts, a pair of opposed side plates arranged along opposite side edge portions of the movable belts, coolers which each have numerous water feed openings and water discharge openings opened to the movable belt and are arranged behind the respective movable belts, and movable partition plates which are placed in respective cooling headers and each connected to driving means for moving the partition plates in a width direction of a cast sheet. A casting space is defined by the movable belt and the side plates. Melt leakage at sliding portions between mold short side plates and the metal belts in a belt type cast sheet continuous caster comprising the metal belts and the mold short side plates arranged along side edge portions of the metal belts and cooleres, which each have numerous water fed openings and water discharge openings opened to the metal belt and are arranged behind the respective metal belts, is prevented by controlling gaps between the metal belts and the mold short side plates through varying a pushing force of the metal belts to the mold short side plates.

Belt type cast sheet continuous caster and prevention of melt leakage in

Growing community of inventors

Chiba, Japan

Saburo Moriwaki