管状焊条丝极电渣立焊接头问题的初步探讨

• 机 构: 首钢修理厂冶金部建筑研究院,
• 出 处: 焊接通讯
• 发表日期: 1978年02期
• 关键词: 焊条药皮 焊接头 电渣 立焊 引弧 工地焊接 交流电源 焊缝表面 过渡段 母材

管状焊条丝极电渣立焊(以下简称电渣立焊),现已成功地应用于冶金基本建设实践,成为中厚板大型容器(高炉、热风炉、转炉等)工地焊接的重要手段,促进了冶金工业建设多快好省地发展,深受现场广大工人欢迎。然而,由于过去一直采用交流电源,如在弱规范下引弧,则高温渣池和电渣焊过程迟迟不能建立,以致形成熔化的电极金属(管焊条和焊丝)与母材互不熔合的过渡段。对于接头处来说,过

Tubular electrode filament electro-slag welding (hereinafter referred to as electro-slag vertical welding) has been successfully applied to the practice of metallurgical construction and has become an important tool for the welding of medium and large-sized containers (blast furnaces, hot stoves and converters) The construction of the metallurgical industry more rapid and more provincial development, welcomed by the majority of workers at the scene. However, since AC power has been used in the past, if the arc is started under a weak standard, the high-temperature slag bath and the electroslag welding process can not be established long enough to form a molten electrode metal (a welding electrode and a welding wire) that does not fuse with the parent metal Transition. For joints, too