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对于现浇钢筋混凝土结构,采用电渣压力焊进行竖向钢筋连接的作法甚为普遍。这种连接法,操作简便、节约钢材、质量好,而且所用设备简单,只需电焊机、钢夹具、焊剂盒等。一、焊接原理将竖向钢筋被焊部位埋置于焊剂中,然后通电加热,再经顶压使接头形成焊包。二、焊接过程1.采用直接引弧法,也就是把上钢筋向上提升2～4mm,使上、下钢筋端面引燃电弧,电弧周围的焊剂熔化形成空穴,如图1。
For cast-in-place reinforced concrete structures, it is common to use electroslag pressure welding for vertical rebar connections. This connection method is easy to operate, saves steel materials, and is of good quality, and the equipment used is simple. It requires only electric welding machines, steel fixtures, and flux boxes. First, the welding principle of the vertical steel welded parts are buried in the flux, and then electrified heating, and then the top pressure to make the joints to form a welding package. Second, the welding process 1. Use direct arc method, which is to lift the steel up 2 ~ 4mm, so that the steel surface of the upper and lower ignited arc, arc around the arc melted to form a hole, as shown in Figure 1.