POWDER CUTTING METHOD, POWDER SUPPLY NOZZLE, AND POWDER CUTTING NOZZLE
To make it possible to improve work efficiency and can achieve improvement of safety by significantly reducing a preheating time when piercing a general soft steel.SOLUTION: A piercing method for piercing a material W to be cut comprising a general soft steel by use of a gas cutting nozzle 2 has: a...
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Zusammenfassung: | To make it possible to improve work efficiency and can achieve improvement of safety by significantly reducing a preheating time when piercing a general soft steel.SOLUTION: A piercing method for piercing a material W to be cut comprising a general soft steel by use of a gas cutting nozzle 2 has: a process in which cut oxygen and a preheating gas are ejected from the gas cutting nozzle 2; and a process in which powders T are supplied toward a preheating flame air stream R comprising the cut oxygen and the preheating gas ejected from the gas cutting nozzle 2. According to the method, the powders T are supplied in a direction along the preheating flame air stream R.SELECTED DRAWING: Figure 4
【課題】一般軟鋼をピアシングする際の予熱時間を大幅に短縮することで作業効率を高めることができ、かつ安全性の向上を図ることができる。【解決手段】ガス切断火口2を使用して一般軟鋼からなる被切断材Wに対してピアシングを行うためのピアシング方法であって、ガス切断火口2から切断酸素および予熱ガスを噴出させる工程と、ガス切断火口2から噴出した切断酸素および予熱ガスからなる予熱炎気流Rに向けてパウダーTを供給する工程と、を有し、予熱炎気流Rに添う向きにパウダーTを供給するピアシング方法を提供する。【選択図】図4 |
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