Ykk Corporation

Shinichiro Maruyama

Hiroshi Yamagata

Tatsuya Maruyama

A fusion welding device including a first holder and a second holder where the respective holders are adapted to hold an end portion of a first work and a second work, respectively, such that the works are moveable in a longitudinal direction; a heater, operable to heat the first and second works; two movers adapted to move the first and second holders close to or apart from each other; and a third mover adapted to move the first and second holders in synchronization with each other in a direction along the first and second faces. The first and second holders are moved by the third mover where the first and second faces are in contact with each other, whereby end faces of the end portions of the first and second works are pressed to each other.

Fusion welding device and assembling apparatus

Disclosed is a wear-resistant film deposited on an aluminum alloy substrate with high adhesiveness by a physical vapor deposition process. On the surface of the aluminum alloy substrate, an aluminum oxide film is formed through the medium of a silicon oxide film. The deposition of the silicon oxide film and the aluminum oxide film on the surface of the aluminum alloy substrate is carried out by a physical vapor deposition process such as the sputtering process and the ion plating process.

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Toyama, Japan

Shinichiro Maruyama