Primetals Technologies Japan, Ltd.

Takahiro Yagi

Masashi Yoshikawa

Ryusuke Nakatsuka

Kosei Tsuji

Takashi Nakano

Takuya Hirata

Yujiro Watanabe

Takehisa Okuda

Shinichi Kaga

Ryosuke Mitsuoka

Shinji Namba

Hiroshi Oishi

Hideaki Takatani

Yuki Maehashi

A pickling apparatus for pickling a strip of metal being conveyed is equipped with: a pickling tank for storing an acid solution; a surrounding part disposed in the pickling tank so as to surround the strip immersed in the acid solution in the pickling tank; and an oxidant supply part for supplying a liquid oxidant toward an inside of the surrounding part.

Pickling apparatus and pickling method

An acid solution preparation device is an acid solution preparation device for preparing an acid solution used for pickling of a steel plate, the device including a sealed tank for storing the acid solution, a gas supply part for supplying an oxygen-containing gas from outside of the sealed tank to the sealed tank, and a purge part for discharging a gas in the sealed tank to the outside.

Acid solution preparation device, acid solution supply apparatus, and pickling facility

A laser processing head includes a laser irradiation part, a collimating optical system for collimating laser light from the laser irradiation part, and a collecting optical system for collecting the laser light after passing through the collimating optical system. An optical system including the collimating optical system and the collecting optical system is configured such that the laser light after passing through the collecting optical system has coma aberration. The laser processing head further includes a first moving part for moving at least one of the laser irradiation part or the collimating optical system so as to change a relative position of the collimating optical system with respect to the laser irradiation part, in a first direction orthogonal to a center axis of the laser irradiation part or the collimating optical system, and a second moving part for moving the collecting optical system so as to change a relative position of the collecting optical system with respect to the collimating optical system, in a second direction orthogonal to a center axis of the collecting optical system.

Laser processing head, laser processing device, and method for adjusting laser processing head

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Hiroshima, Japan

Takahiro Yagi