??鐵(tie)芯的常見問題有：因電機定子(zi)繞(rao)(rao)組短(duan)路(lu)故障(zhang)或接地裝(zhuang)置，電光(guang)燒(shao)傷鐵(tie)芯，使硅鋼片間絕(jue)緣層毀壞而導致(zhi)短(duan)路(lu)故障(zhang)；擰緊欠(qian)佳和電機震(zhen)動導致(zhi)鐵(tie)芯松脫；拆卸舊(jiu)繞(rao)(rao)組時易實際操(cao)作不合(he)理(li)而損害(hai)鐵(tie)芯，維修(xiu)時不小心(xin)被機械設備力損害(hai)等(deng)。

??2．鐵芯的維修

??當因繞組(zu)短路故障(zhang)或接(jie)地裝(zhuang)置，電(dian)(dian)光燒傷鐵(tie)(tie)芯，但(dan)不比較嚴重時(shi)，可以用(yong)下(xia)列方(fang)式(shi) 維(wei)修：先把鐵(tie)(tie)芯清(qing)理整潔，去除(chu)塵土和油漬(zi)，將(jiang)已燒傷熔化(hua)(hua)了(le)的(de)部(bu)分硅(gui)(gui)鋼(gang)片(pian)(pian)(pian)用(yong)小銼(cuo)銼(cuo)掉，打磨拋光整平，清(qing)理片(pian)(pian)(pian)與片(pian)(pian)(pian)熔化(hua)(hua)在一起的(de)缺點。再將(jiang)電(dian)(dian)機定子鐵(tie)(tie)芯挨近常見(jian)(jian)故障(zhang)點周邊的(de)自(zi)然(ran)通風槽片(pian)(pian)(pian)取下(xia)，使(shi)維(wei)修時(shi)硅(gui)(gui)鋼(gang)片(pian)(pian)(pian)有一定的(de)松脫空間，隨后用(yong)鋼(gang)板剝(bo)掉常見(jian)(jian)故障(zhang)點上的(de)硅(gui)(gui)鋼(gang)片(pian)(pian)(pian)，將(jiang)被(bei)燒傷硅(gui)(gui)鋼(gang)片(pian)(pian)(pian)上的(de)滲碳體消除(chu)整潔，再涂以硅(gui)(gui)鋼(gang)片(pian)(pian)(pian)三(san)防(fang)漆，插進一層(ceng)薄云母，然(ran)后將(jiang)自(zi)然(ran)通風槽片(pian)(pian)(pian)打進，維(wei)持鐵(tie)(tie)芯擰緊。

??假如鐵芯在(zai)槽的(de)齒部(bu)燒傷，只需把熔化在(zai)一起的(de)硅鋼片銼掉就(jiu)可以(yi)。假如危害到繞組的(de)堅固(gu)性，則可以(yi)用環氧樹脂(zhi)膠修復燒缺一部(bu)分的(de)鐵芯。

??當鐵(tie)芯(xin)(xin)齒(chi)端徑向靠(kao)外伸開和兩邊(bian)壓圈不緊(jin)(jin)時，可在(zai)二塊(kuai)厚鋼板做成的園盤（其(qi)直(zhi)徑略(lve)低于電機定子繞組(zu)頂端的內徑）中間打孔，穿一根雙(shuang)頭(tou)螺栓，將(jiang)鐵(tie)芯(xin)(xin)兩邊(bian)夾持，隨(sui)后擰緊(jin)(jin)雙(shuang)頭(tou)螺栓，使鐵(tie)芯(xin)(xin)修復(fu)原型。槽(cao)齒(chi)傾斜時可以用斜口鉗調整。

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恒稅公司從(cong)事伺服(fu)電機（馬達）的維修工作很多年(nian)。

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