Sumitomo Metal Industries, Inc.

Sumitomo Heavy Industries, Ltd.

Masato Tomiku

Yoshio Kawashima

Kenji Aihara

Tsuneo Yamada

Toshihiro Tanaka

Masaaki Yokoyama

Kozo Watanabe

Hisao Murakami

Hiroyuki Morimoto

Shunji Ogata

Toyoshige Myojo

Susumu Kanbara

Tadashi Sawada

Shinji Okuda

Tsutomu Kuno

Mitsuaki Ikeda

Direct softening heat treatment of rolled wire rods comprises the steps of:

Process for direct softening heat treatment of rolled wire rods

Direct softening heat treatment of rolled wire rods comprises the steps:

Process and apparatus for direct softening heat treatment of rolled wire

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

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Kitakyushu, Japan

Masato Tomiku