1960 Volume 29 Issue 5 Pages 396-401
The purpose of this research is to investigate the chemical reactions in the weld metal with the CO2-O2 arc welding. Many kinds of weld metal and slag by the CO2-O2 arc welding were analysed chemically, changing the rate of oxygen mixed in supplied gas.
In this first report the author describes the method of the experiment and the results showing relations between the rate of oxygen mixed in supplied gas and chemical compositions of weld steel and slag. And he shows that, when welded on plate, an decrease rate of carbon of weld metal is closely connected with a porosity of weld metal.
He will discuss the oxidizing reactions of carbon, silicon and manganse in the second report.
