| 摘要 |
<p>Wire comprises a steel shell and a powder filling, which consists of calcium and an additional component containing a flux with a calcium oxide content of >= 45 wt.%, a silicon dioxide content of = 15 wt.% and a basicity (calcium oxide/silicon dioxide) of >= 3.2, where the ratio between the flux and the calcium in the powder mixture is (0.2-3.2):1, and the ratio between the wire components is determined as follows: powder filling (25-60 wt.%) and steel shell (40-75 wt.%).</p> |
