| 摘要 |
PURPOSE:To obtain the above mentioned wire preventing pore generation of primer applied steel plate etc. and giving sound weld joint zone, by using gas mixed more than a specific quantity of H2 with more than one kind of CO2, inactive gas and O2(but, omit the case O2 only) and also, adding a specific quantity of Mn and TiO2 as indispensable component. CONSTITUTION:This wire is used for the welding method using as sealing gas added more than 5, 1 vol. % of H2 to mixed gas (but, omit the case O2 only) containing one kind or two kinds of CO2 gas, inactive gas and O2 gas. 0.5-8.5 wt.% of Mn and 1.0-18 wt.% of TiO2 are contained in the above wire as indispensable component and as occasion demands, less than 40 wt.% of hydrogen source compounds, such as cellulose, starch, asbestos or powdered glass etc., are contained moreover. The wire is manufacturated by filling up generally used flux materials, such as alkaline feldspar, silica sand, talc or iron powder etc. in outer cover of soft iron having a good forming property. |
