【Daily Discussion】Utilities - Civil Engineering - 20210419
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Flash butt welding is mainly used for ( ). Choose one: A. Connection of vertical rebar B. Connection of rebar mesh C. Rebar lapping D. Connection of horizontal rebar Answer: D Feel free to participate actively in the discussions; the system offers generous rewards for answering questions posed by VIP members! ! !
D. Connection of horizontal rebar: Flash butt welding is suitable for connecting the main rebars in horizontal members with a diameter of 25 millimeters or less. Flash butt welding of rebar: Flash butt welding of rebar involves placing two bars end to end; the welding current generates resistive heat at the point where the two bars come into contact, causing the metal at that point to melt and produce intense spattering as well as flashes. This process is accompanied by an irritating odor and the release of trace molecules, and it is completed by applying rapid upsetting force.