電焊機的原理

　　電焊機的原理

是shi應ying用yong正zheng負fu兩liang極ji在zai霎sha時shi短duan路lu時shi產chan生sheng的de高gao溫wen電dian弧hu來lai凝ning結jie電dian焊han條tiao上shang的de焊han料liao和he被bei焊han資zi料liao
，來lai到dao達da使shi它ta們men分fen離li的de目mu的de。電dian焊han機ji的de構gou造zao非fei常chang簡jian單dan
，說shuo白bai了le就jiu是shi一yi個ge大da功gong率lv的de變bian壓ya器qi
，將jiang220/380V交jiao流liu電dian變bian為wei低di電dian壓ya
，大da電dian流liu的de電dian源yuan

，能neng夠gou是shi直zhi流liu的de也ye能neng夠gou是shi交jiao流liu的de。電dian焊han變bian壓ya器qi有you本ben身shen的de特te性xing，就jiu是shi具ju有you電dian壓ya急ji劇ju降jiang落luo的de特te性xing。在zai焊han條tiao引yin燃ran後hou電dian壓ya降jiang落luo，在zai電dian焊han機ji的de工gong作zuo電dian壓ya的de調tiao理li，除chu了le一yi次ci的de220/380Vdianyabianhuan，ercixianquanyeyouchoutoubianhuandianya，tongshihaiyouyongtiexinlaitiaolide，ketiaotiexindianhanjiputongshiyigedagonglvdebianyaqi，xiyingyongdiangandeyuanlizuochengde
，dianganliangzaijietongheduankaishihuichanshenghongdadedianyabianhua，yingyongzhengfuliangjizaishashiduanlushichanshengdegaoyadianhulainingjiedianhantiaoshangdehanliao.來到達使它們分離的目的。在焊條和工件之間施加電壓，經過劃檫或接觸引燃電弧，用電弧的能量凝結焊條和加熱母材。如圖《電焊機》所示