SHIELD GAS SUPPLY DEVICE AND METHOD

To improve shield performance by suppressing entrainment of surrounding air into a shield gas on a shield gas supply device and a method.SOLUTION: A shield gas supply device includes: a first nozzle for jetting a first shield gas at a preset first speed along a shield surface; and a second nozzle di...

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Hauptverfasser:	KOMATSU YOSHINAO, TANIGAWA HIDETSUGU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	To improve shield performance by suppressing entrainment of surrounding air into a shield gas on a shield gas supply device and a method.SOLUTION: A shield gas supply device includes: a first nozzle for jetting a first shield gas at a preset first speed along a shield surface; and a second nozzle disposed on an outside the first nozzle and jetting a second shield gas at a second speed which is slower than the first speed along the first shield gas.SELECTED DRAWING: Figure 1 【課題】シールドガス供給装置および方法において、シールドガスへの周囲の空気の巻き込みを抑制することでシールド性能の向上を図る。【解決手段】シールド面に沿って予め設定された第１速度で第１シールドガスを噴出する第１ノズルと、第１ノズルの外側に配置されて第１シールドガスに沿って第１速度より低速の第２速度で第２シールドガスを噴出する第２ノズルと、を備える。【選択図】図１