| 摘要 |
<p>A flux-cored nickel-based alloy wire contains, based on the total mass of the wire, 3 to 11 percent by mass of TiO 2 , 0.2 to 1.3 percent by mass of SiO 2 , 1 to 3 percent by mass of ZrO 2 , and 0.3 to 1. 0 percent by mass of manganese oxides in terms of MnO 2 , contains of a total of 0.2 to 1.0 percent by mass in terms of Na, K and Li of sodium compounds, potassium compounds, and lithium compounds. The flux has a ratio ( ( [TiO 2 ] + [ZrO 2 ] ) / [SiO 2 ] ) of the total of the TiO 2 and ZrO 2 contents to the SiO 2 content of 5. 0 to 14.5, in which [TiO 2 ] , [SiO 2 ] and [ZrO 2] represent TiO 2 , SiO 2 and ZrO 2 contents. The wire shows excellent weldability in welding of all positions typically on 9% nickel steels and nickel - based alloy steels and gives a weld metal having good pitting resistance, bead appearance, and resistance to hot cracking.</p> |
