埋(Mai)弧(Hu)焊(Han)过(Guo)程(Cheng)原(Yuan)理(Li)及(Ji)其(Qi)特(Te)点(Dian),(?)弧(Hu)焊(Han)是(Shi)电(Dian)弧(Hu)在(Zai)焊(Han)剂(Ji)层(Ceng)下(Xia)进(Jin)行(Xing)焊(Han)接(Jie)的(De)方(Fang)法(Fa),(?)这(Zhe)种(Zhong)方(Fang)法(Fa)是(Shi)利(Li)用(Yong)焊(Han)丝(Si)与(Yu)焊(Han)件(Jian)之(Zhi)间(Jian)在(Zai)焊(Han)剂(Ji)层(Ceng)下(Xia)燃(Ran)烧(Shao)的(De)电(Dian)弧(Hu)产(Chan)生(Sheng)热(Re)量(Liang),(?)熔(Rong)化(Hua)焊(Han)丝(Si)、(?)焊(Han)剂(Ji)和(He)母(Mu)材(Cai)金(Jin)属(Shu)而(?)形(Xing)成(Cheng)焊(Han)缝(Feng),(?)连(Lian)接(Jie)被(Bei)焊(Han)工(Gong)件(Jian)。(?)在(Zai)埋(Mai)弧(Hu)焊(Han)中(Zhong),(?)颗(Ke)粒(Li)状(Zhuang)焊(Han)剂(Ji)对(Dui)电(Dian)弧(Hu)和(He)焊(Han)接(Jie)区(Qu)起(Qi)保(Bao)护(Hu)和(He)合(He)金(Jin)化(Hua)作(Zuo)用(Yong),(?)而(?)焊(Han)丝(Si)则(Ze)用(Yong)作(Zuo)填(Tian)充(Chong)金(Jin)属(Shu)。(?)
MIG/MAG CO2弧(Hu)焊(Han)机(Ji)保(Bao)养(Yang)方(Fang)法(Fa)
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