Aula 7 - Fundição e Soldagem.pdf - Fundio e soldagem Prof...

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Fundição e soldagem Prof. Temístocles Luz
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Classificação Processos de soldagem Fusão Oxigas Arco Voltaico Resistência Não convencionais Pressão Fricção
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Oxigás Acetileno Propano Hidrogênio
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Soldagem a gás Processo de soldagem que funde e une metais através do aquecimento com uma chama causada pela reação entre um gás combustível e oxigênio. Um fluxo pode ser utilizado para desoxidar e/ou limpar a superfície a ser soldada
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Soldagem oxiacetilena: (a) visão do processo; (b) área de soldagem. Oxygen/acetylene mixture Filler rod Protection envelope Metal droplet Base metal Weld pool Weld metal Slag Primary combustion Regulator Flow meter Acetylene Welding direction Gas torch Workpiece C 2 H 2 O 2 Valve Oxygen (a) (b) Oxyacetylene welding: ( a ) overall process; ( b ) welding are
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Tipos de chama Chama Neutra O 2 e C 2 H 2 estão em proporções iguais. Possui cone interno curto e chama envolvente maior A reação entre o O 2 e C 2 H 2 acontece no cone interno,
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