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包钢在研制供喷煤用的贯流式风口中,使用了计算机控制的真空电子束焊机(型号:EBW1500/30—150CNC)。经大量的焊接试验,于1988年3月成功焊制成经包钢改进的贯流式风口,对风口进行2.9420MPa的水压检验,30min 内焊缝及其它部位均无渗漏现象,满足了包钢高炉喷煤生产的迫切需要。采用电子束焊接新工艺制造贯流式风口,施焊前风口不需预热,施焊过程中也不用焊条、焊剂和保护性气体,焊接过程实现
Baotou used a computer-controlled vacuum electron beam welding machine (model number: EBW1500 / 30-150CNC) in the development of tubular tuyeres for coal injection. After a large number of welding tests, in March 1988 successfully welded through the Baotou improved through-flow tuyere, the tuyere 2.9420MPa water pressure test, 30min welds and other parts of no leakage, to meet the The urgent need of coal injection blast furnace production. The use of electron beam welding new technology manufacturing cross-flow tuyere, welding before the tuyere without preheating, welding process without welding rod, flux and protective gas, the welding process to achieve