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  • 產(chan)品名(ming)稱(cheng): 浙江點焊機
  • 產品分類: 點焊機系(xi)列
  • 聯系方式:
  • 公司名(ming)稱: 山(shan)東(dong)億寶焊(han)接設備(bei)有限(xian)公司
  • 公(gong)司地址:臨沂(yi)市郯城縣紅(hong)花(hua)鎮渠溝村88號
  • 添加時間(jian): 21/02/01
產品詳情
點焊機系采用雙(shuang)面雙(shuang)點過流(liu)(liu)焊接的(de)(de)原理,工(gong)(gong)作時兩(liang)個電(dian)(dian)極加(jia)壓工(gong)(gong)件使兩(liang)層金(jin)屬在兩(liang)電(dian)(dian)極的(de)(de)壓力下形成一(yi)定的(de)(de)接觸(chu)電(dian)(dian)阻(zu),而焊接電(dian)(dian)流(liu)(liu)從一(yi)電(dian)(dian)極流(liu)(liu)經(jing)另一(yi)電(dian)(dian)極時在兩(liang)接觸(chu)電(dian)(dian)阻(zu)點形成瞬(shun)間(jian)的(de)(de)熱熔接,且焊接電(dian)(dian)流(liu)(liu)瞬(shun)間(jian)從另一(yi)電(dian)(dian)極沿兩(liang)工(gong)(gong)件流(liu)(liu)至此電(dian)(dian)極形成回路,并且不會傷及被焊工(gong)(gong)件的(de)(de)內部結構。
  點(dian)(dian)焊(han)機(ji)按(an)(an)照用(yong)(yong)途分(fen),有(you)(you)萬能式(shi)(shi)(shi)(shi)(shi)(shi)(通用(yong)(yong)式(shi)(shi)(shi)(shi)(shi)(shi))、專用(yong)(yong)式(shi)(shi)(shi)(shi)(shi)(shi);按(an)(an)照同時焊(han)接的(de)(de)焊(han)點(dian)(dian)數目分(fen),有(you)(you)單點(dian)(dian)式(shi)(shi)(shi)(shi)(shi)(shi)、雙點(dian)(dian)式(shi)(shi)(shi)(shi)(shi)(shi)、多(duo)點(dian)(dian)式(shi)(shi)(shi)(shi)(shi)(shi);按(an)(an)照導(dao)電(dian)方式(shi)(shi)(shi)(shi)(shi)(shi)分(fen),有(you)(you)單側的(de)(de)、雙側的(de)(de);按(an)(an)照加壓(ya)機(ji)構的(de)(de)傳動(dong)方式(shi)(shi)(shi)(shi)(shi)(shi)分(fen),有(you)(you)腳踏式(shi)(shi)(shi)(shi)(shi)(shi)、電(dian)動(dong)機(ji)-凸輪式(shi)(shi)(shi)(shi)(shi)(shi)、氣(qi)壓(ya)式(shi)(shi)(shi)(shi)(shi)(shi)、液(ye)壓(ya)式(shi)(shi)(shi)(shi)(shi)(shi)、復(fu)合(he)式(shi)(shi)(shi)(shi)(shi)(shi)(氣(qi)液(ye)壓(ya)合(he)式(shi)(shi)(shi)(shi)(shi)(shi));按(an)(an)照運轉(zhuan)的(de)(de)特性分(fen),有(you)(you)非自動(dong)化(hua)(hua)、自動(dong)化(hua)(hua);按(an)(an)照安(an)裝的(de)(de)方法分(fen),有(you)(you)固定式(shi)(shi)(shi)(shi)(shi)(shi),移動(dong)式(shi)(shi)(shi)(shi)(shi)(shi)或輕便(bian)式(shi)(shi)(shi)(shi)(shi)(shi)(懸掛式(shi)(shi)(shi)(shi)(shi)(shi));按(an)(an)照焊(han)機(ji)的(de)(de)活動(dong)電(dian)極(普通是上(shang)電(dian)極)的(de)(de)移動(dong)方向分(fen),有(you)(you)垂直(zhi)行程(電(dian)極作直(zhi)線運動(dong))、圓弧行程;按(an)(an)照電(dian)能的(de)(de)供給方式(shi)(shi)(shi)(shi)(shi)(shi)分(fen),有(you)(you)工頻焊(han)機(ji)(采(cai)用(yong)(yong)50赫茲交(jiao)流電(dian)源(yuan))、脈沖焊(han)機(ji)(直(zhi)流脈沖焊(han)機(ji)、儲(chu)能焊(han)機(ji)等)、變頻焊(han)機(ji)(如低頻焊(han)機(ji))。
  當工件(jian)和電(dian)(dian)極一定時,工件(jian)的(de)(de)電(dian)(dian)阻(zu)取(qu)決與它的(de)(de)電(dian)(dian)阻(zu)率(lv)。因(yin)此,電(dian)(dian)阻(zu)率(lv)是被(bei)焊(han)材料的(de)(de)重(zhong)要性能。電(dian)(dian)阻(zu)率(lv)高(gao)的(de)(de)金(jin)屬其導電(dian)(dian)性差(如(ru)不銹鋼)電(dian)(dian)阻(zu)率(lv)低(di)的(de)(de)金(jin)屬其導電(dian)(dian)性好(hao)(如(ru)鋁合金(jin))。因(yin)此,點焊(han)不銹鋼時產(chan)熱(re)(re)易而(er)散(san)熱(re)(re)難(nan),點焊(han)鋁合金(jin)時產(chan)熱(re)(re)難(nan)而(er)散(san)熱(re)(re)易。點焊(han)時,前者可(ke)用較(jiao)小電(dian)(dian)流(幾千(qian)安培(pei)),而(er)后者就用很(hen)大電(dian)(dian)流(幾萬安培(pei))。電(dian)(dian)阻(zu)率(lv)不僅(jin)取(qu)決與金(jin)屬種類(lei),還與金(jin)屬的(de)(de)熱(re)(re)處理狀態、加(jia)工方式(shi)及(ji)溫度(du)有關。
  為(wei)了(le)保證熔(rong)核尺寸(cun)和(he)(he)焊(han)(han)點(dian)強度,焊(han)(han)接(jie)時間(jian)與(yu)焊(han)(han)接(jie)電(dian)流(liu)(liu)在一(yi)定范(fan)(fan)圍內可以(yi)相互補充。為(wei)了(le)獲得一(yi)定強度的焊(han)(han)點(dian),可以(yi)采用大(da)電(dian)流(liu)(liu)和(he)(he)短時間(jian)(強條件,又稱硬規(gui)(gui)范(fan)(fan)),也可采用小電(dian)流(liu)(liu)和(he)(he)長(chang)時間(jian)(弱條件,也稱軟規(gui)(gui)范(fan)(fan))。選用硬規(gui)(gui)范(fan)(fan)還是軟規(gui)(gui)范(fan)(fan),取決于(yu)金屬(shu)(shu)的性(xing)能(neng)、厚度和(he)(he)所(suo)用焊(han)(han)機(ji)的功率。對于(yu)不同性(xing)能(neng)和(he)(he)厚度的金屬(shu)(shu)所(suo)需的電(dian)流(liu)(liu)和(he)(he)時間(jian),都有一(yi)個上下(xia)限,使用時以(yi)此為(wei)準。
  電極壓(ya)力對兩電極間(jian)總電阻R有明顯(xian)(xian)的(de)(de)影(ying)響,隨(sui)著電極壓(ya)力的(de)(de)加大(da)(da)(da)(da),R顯(xian)(xian)著減(jian)小(xiao),而(er)焊(han)接(jie)(jie)電流加大(da)(da)(da)(da)的(de)(de)幅(fu)度(du)(du)卻不大(da)(da)(da)(da),不能影(ying)響因(yin)R減(jian)小(xiao)引(yin)起(qi)的(de)(de)產熱減(jian)少。因(yin)此,焊(han)點強度(du)(du)總隨(sui)著焊(han)接(jie)(jie)壓(ya)力加大(da)(da)(da)(da)而(er)減(jian)小(xiao)。解決的(de)(de)辦(ban)法是在加大(da)(da)(da)(da)焊(han)接(jie)(jie)壓(ya)力的(de)(de)同時,加大(da)(da)(da)(da)焊(han)接(jie)(jie)電流。





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