Sumitomo Metal Industries, Inc.

Sumitomo Heavy Industries, Ltd.

Tsuneo Yamada

Takashi Kimura

Yasuhiro Maehara

Hiroshi Tomono

Toshihiro Tanaka

Yoshio Kawashima

Masato Tomiku

Tsutomu Sakashita

Toyoshige Myojo

Masaaki Yokoyama

Shunji Ogata

Kunio Yasumoto

Tsutomu Kuno

Kozo Watanabe

Hisao Murakami

Hiroyuki Morimoto

Yoshiaki Kusaba

Hiroyuki Matoba

A rolling method for parallel-flange steel shapes is disclosed, which comprises the steps of:

Rolling method for parallel-flange steel shapes

Disclosed is a method and apparatus for feeding a material to a hot forging machine in a forging line in which a coiled material is uncoiled, straightened, fed intermittently by pinch rollers through a heating device, cut by a cutting device and then fed into a hot forging machine. The method has the steps of preparing a driving device which drives the pinch rollers mechanically independently from the hot forging machine; picking up the timing of forging conducted by the hot forging machine as an electric signal, and controlling the driving device in accordance with the electric signal.

Method of feeding material to hot forging machine

A method and apparatus of processing a continuously cast slab to prevent the formation of surface cracks by applying plastic strains to the surface layer of the slab in which a process of solidification is taking place. The method comprises pressing a projection against the slab surface under specified conditions prior to introducing the slab to a leveling stage.

Apparatus of processing continuously cast slabs

A continuously cast slab is processed to prevent the formation of surface cracks by applying plastic strains to the surface layer of the slab in which a process of solidification is taking place. The method comprises pressing a projection against the slab surface under specified conditions prior to introducing the slab to a leveling stage.

Method of processing continuously cast slabs

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Nishinomiya, Japan

Tsuneo Yamada