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一台12V 190型柴油机进气管道铸铝连接板发生断裂,采用焊接修复。其断裂部位如图1所示。由于铝材焊接时极易氧化,生成的氧化铝(Al_2O_3)熔点高,会阻碍母材的熔化和
A 12V 190 diesel engine intake manifold aluminum connecting plate fracture, the use of welding repair. The fracture site shown in Figure 1. As the aluminum is easily oxidized during welding, the resulting alumina (Al 2 O 3) has a high melting point and hinders the base metal from melting