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- W2937647615 abstract "The aim is to improve the quality of the weld metal during arc welding of cast iron.This is achieved in that the arc between a carbon electrode and the workpiece, and thewelding wire is fed through a hole in the carbon electrode, which feeds direct current polarity in agas burner nozzle fed oxygen.This carbon electrode is also the current supply to the welding wire and a substance whichforms carbon dioxide gas in the arc when welding with straight polarity.Carbon dioxide performs protect the weld pool from the atmosphere and serves as anadditional carbon oxidizer that enters into the weld metal from the main bath - iron.Welding is carried out without preheating. During welding, controlled temperature in thebase metal heat affected zone, preventing heating of the workpiece is above 70 °C. As a result ofinvestigations since the welds, cracking and other defects in welds and heat-affected zone is notdetected. The hardness of the weld metal does not exceed 210-230 HB and allows machining ofwelds conventional metal-cutting tools." @default.
- W2937647615 created "2019-04-25" @default.
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- W2937647615 date "2017-01-01" @default.
- W2937647615 modified "2023-09-25" @default.
- W2937647615 title "The method of semi-automatic welding of cast iron with the oxidation of excess carbon" @default.
- W2937647615 doi "https://doi.org/10.32820/2079-1747-2017-18-84-88" @default.
- W2937647615 hasPublicationYear "2017" @default.
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