很多人以為點焊(han)機便是(shi)電焊機(ji)(ji)，其實(shi)這種認知是(shi)過錯的(de)，其實(shi)點焊機(ji)(ji)是(shi)點焊機(ji)(ji)，電焊機(ji)(ji)是(shi)電焊機(ji)(ji)，他(ta)們(men)兩有很(hen)大的(de)差(cha)異，下(xia)面為我們(men)介紹一下(xia)他(ta)們(men)的(de)差(cha)異。

電焊(han)機(ji)與點焊(han)機(ji)原理差異

電(dian)(dian)(dian)焊(han)(han)(han)機(ji)是(shi)使(shi)用正負南北極(ji)在瞬(shun)間短(duan)路時(shi)發(fa)生(sheng)的(de)(de)高(gao)溫(wen)電(dian)(dian)(dian)弧來熔化電(dian)(dian)(dian)焊(han)(han)(han)條上的(de)(de)焊(han)(han)(han)料(liao)和(he)被焊(han)(han)(han)資料(liao)，使(shi)被觸摸物(wu)相(xiang)結合的(de)(de)目的(de)(de)。其結構十分簡(jian)略(lve)，便是(shi)一個大功率的(de)(de)變壓器。電(dian)(dian)(dian)焊(han)(han)(han)機(ji)一般按輸出電(dian)(dian)(dian)源品種(zhong)可分為兩種(zhong)，一種(zhong)是(shi)交流(liu)電(dian)(dian)(dian)源、一種(zhong)是(shi)直流(liu)電(dian)(dian)(dian)。

電焊(han)(han)機優(you)點：電焊(han)(han)機使(shi)用(yong)(yong)(yong)電動力，將電能瞬間轉(zhuan)換為(wei)熱能，電很遍及，電焊(han)(han)機適(shi)合(he)在枯(ku)燥的(de)環境下(xia)作業，不(bu)需要(yao)(yao)太(tai)多要(yao)(yao)求，因體積細巧，操作簡略，使(shi)用(yong)(yong)(yong)方便，速(su)度較快(kuai)，焊(han)(han)接后焊(han)(han)縫健壯(zhuang)等優(you)點廣泛用(yong)(yong)(yong)于各個領域，特(te)別對要(yao)(yao)求強度很高(gao)的(de)制件(jian)特(te)實用(yong)(yong)(yong)。

電(dian)焊(han)(han)機(ji)缺(que)點：電(dian)焊(han)(han)機(ji)在使用的(de)進程中(zhong)焊(han)(han)機(ji)的(de)周圍(wei)會發(fa)生必(bi)定的(de)磁場，電(dian)弧(hu)焚燒時會向(xiang)周圍(wei)發(fa)生輻射，弧(hu)光(guang)中(zhong)有(you)(you)紅(hong)外(wai)線，紫外(wai)線等光(guang)種，還有(you)(you)金(jin)屬(shu)(shu)蒸(zheng)汽和(he)(he)煙塵等有(you)(you)害物質，所以操(cao)作(zuo)時有(you)(you)必(bi)要要做滿(man)足的(de)防(fang)護措施(shi)。焊(han)(han)接不適合(he)于(yu)(yu)(yu)高碳鋼的(de)焊(han)(han)接，由于(yu)(yu)(yu)焊(han)(han)接焊(han)(han)縫金(jin)屬(shu)(shu)結(jie)晶和(he)(he)偏析及氧化等進程，關于(yu)(yu)(yu)高碳鋼來說焊(han)(han)接功能(neng)不良，焊(han)(han)后簡單開裂(lie)，發(fa)生熱裂(lie)紋(wen)和(he)(he)冷裂(lie)紋(wen)。

點(dian)(dian)(dian)焊(han)機系采用雙(shuang)面(mian)雙(shuang)點(dian)(dian)(dian)過流(liu)焊(han)接的(de)(de)(de)原(yuan)理，作業時兩(liang)個電(dian)極(ji)加(jia)壓工(gong)件使兩(liang)層金屬在兩(liang)電(dian)極(ji)的(de)(de)(de)壓力下(xia)構成(cheng)必(bi)定的(de)(de)(de)觸摸電(dian)阻(zu)，而焊(han)接電(dian)流(liu)從(cong)一電(dian)極(ji)流(liu)經另一電(dian)極(ji)時在兩(liang)觸摸電(dian)阻(zu)點(dian)(dian)(dian)構成(cheng)瞬(shun)間(jian)的(de)(de)(de)熱熔接，且焊(han)接電(dian)流(liu)瞬(shun)間(jian)從(cong)另一電(dian)極(ji)沿兩(liang)工(gong)件流(liu)至此電(dian)極(ji)構成(cheng)回路，并且不會傷及被焊(han)工(gong)件的(de)(de)(de)內部結構。

點焊的工藝進程(cheng)為(wei)注冊冷(leng)卻(que)水；將焊件(jian)外(wai)表整理干(gan)凈(jing)，安裝精確(que)后，送(song)入上、下電極之間(jian)，施加壓(ya)力，使(shi)其觸摸良好(hao)；通(tong)(tong)電使(shi)兩工件(jian)觸摸外(wai)表受(shou)熱，部分(fen)熔化，構成(cheng)(cheng)熔核(he)；斷電后保持壓(ya)力，使(shi)熔核(he)在(zai)壓(ya)力下冷(leng)卻(que)凝(ning)結，構成(cheng)(cheng)焊點；去除壓(ya)力，取出工件(jian)。焊接電流、電極壓(ya)力、通(tong)(tong)電時間(jian)及電極作業外(wai)表尺寸等點焊工藝參數對焊接質量有嚴重影響。

工藝流程差異

別的還有便是點焊機與電(dian)(dian)(dian)(dian)焊(han)機的工(gong)(gong)藝流程(cheng)不一(yi)樣，點(dian)(dian)焊(han)的工(gong)(gong)藝進程(cheng)為注(zhu)冊冷(leng)卻水(shui)；將焊(han)件外表(biao)整理(li)干凈，安裝精確(que)后(hou)，送(song)入上、下電(dian)(dian)(dian)(dian)極(ji)之(zhi)間(jian)，施加壓(ya)(ya)力(li)，使(shi)(shi)其觸摸(mo)(mo)良(liang)好；通(tong)電(dian)(dian)(dian)(dian)使(shi)(shi)兩(liang)工(gong)(gong)件觸摸(mo)(mo)外表(biao)受熱(re)，部分(fen)熔(rong)化(hua)，構(gou)成熔(rong)核；斷電(dian)(dian)(dian)(dian)后(hou)保持壓(ya)(ya)力(li)，使(shi)(shi)熔(rong)核在壓(ya)(ya)力(li)下冷(leng)卻凝結構(gou)成焊(han)點(dian)(dian)；去除(chu)壓(ya)(ya)力(li)，取出工(gong)(gong)件。焊(han)接電(dian)(dian)(dian)(dian)流、電(dian)(dian)(dian)(dian)極(ji)壓(ya)(ya)力(li)、通(tong)電(dian)(dian)(dian)(dian)時(shi)間(jian)及電(dian)(dian)(dian)(dian)極(ji)作業外表(biao)尺寸等點(dian)(dian)焊(han)工(gong)(gong)藝參數對焊(han)接質(zhi)量有嚴重(zhong)影響