Daihen Corporation

Moritoshi Nagasaka

Toshihiko Okada

Hiroyuki Morimoto

Kikuo Terayama

Masanobu Uchida

Mitsuo Kohno

Masao Sakai

Hirokazu Kubo

There is disclosed an arc spot welding apparatus comprising a welding power supplying unit, a wire feeder connected to the welding power supplying unit by a control cable and an arc spot welding torch connected to the wire feeder by a torch cable which is operable by operating an operation switch arranged on a holder thereof to be held by an operator being characterized in that the welding torch is comprised of a nozzle assembly providing a nozzle and a power supply element, a torch holder assembly and a torch body assembly connecting said nozzle assembly and said torch holder assembly which is formed to have a length so that the operator can operate said welding torch in a standing posture.

Arc spot welding apparatus

A plasma arc working apparatus of water cooling type provides a circulation system for circulating cooling water through a circulation passage in order to cool a working plasma arc torch and an introduction device for introducing pressurized gas into the circulation passage in order to drain the cooling water remaining in the circulation passage forcibly therefrom when the power switch for supplying electric power to the working apparatus is switched off.

Water cooling plasma arc working apparatus

Growing community of inventors

Ibaragi, Japan

Moritoshi Nagasaka