"fluxo de alta basicidade do tipo fundido para uso em soldagem a arco submerso"

High basicity melt flux for submerged arc welding use which is used when preparing high strength weld metal and gives sound, high toughness weld metal free of top slag-in is provided. The melt flux for submerged arc welding use which is used when welding the seams of UO pipe for pipeline use having...

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Bibliographische Detailangaben
Hauptverfasser:	SHIGEO OYAMA, KOHICHI SHINADA, HIROSHI MORIMOTO, HIROSHI NAKAZAWA
Format:	Patent
Sprache:	por
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:	High basicity melt flux for submerged arc welding use which is used when preparing high strength weld metal and gives sound, high toughness weld metal free of top slag-in is provided. The melt flux for submerged arc welding use which is used when welding the seams of UO pipe for pipeline use having a tensile strength of a base material of 800 MPa to 1200 MPa is melt flux for submerged arc welding use characterized by containing, by mass%, CaO: 5.0% to 25.0%, MgO: 1.0% to 5.0%, Al 2 O 3 : over 15.0% to 30.0%, CaF 2 : 30.0% to 50.0%, SiO 2 : 10.0% to 20.0%, and MnO: 0.5% to 15.0% and having a basicity B of 1.2 to 3.2.