一、冷焊機的原理是什么
冷焊(han)機是一種焊(han)接(jie)設(she)備(bei),因為焊(han)接(jie)后工(gong)件表(biao)面溫度(du)較(jiao)低,因此稱為冷焊(han)機,它的工(gong)作原理(li)是:利用充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)容,以(yi)10-3~10–1秒的周期,10-6~10-5秒的超短時(shi)間(jian)(jian)(jian)放(fang)電(dian)(dian)(dian),微電(dian)(dian)(dian)瞬間(jian)(jian)(jian)放(fang)電(dian)(dian)(dian)產生(sheng)的高熱能,電(dian)(dian)(dian)極材料與工(gong)件接(jie)觸部位瞬間(jian)(jian)(jian)會被(bei)加熱到(dao)(dao)8000°C~10000°C,等(deng)離子化狀態(tai)的熔融金(jin)屬以(yi)冶(ye)金(jin)的方式(shi)過渡到(dao)(dao)工(gong)件的表(biao)層,與原有基(ji)材牢固(gu)熔接(jie),從而達到(dao)(dao)焊(han)接(jie)效果。冷焊(han)機之(zhi)所(suo)以(yi)能實現(xian)冷焊(han),是因為它的放(fang)電(dian)(dian)(dian)時(shi)間(jian)(jian)(jian)與下一次放(fang)電(dian)(dian)(dian)間(jian)(jian)(jian)隔時(shi)間(jian)(jian)(jian)相比極短,機器有足(zu)夠的相對停(ting)止(zhi)時(shi)間(jian)(jian)(jian),熱量會通過工(gong)件基(ji)體擴(kuo)散到(dao)(dao)外界(jie),工(gong)件的被(bei)加工(gong)部位不會有熱量的聚集。
二、冷焊機優缺點及用途
1、冷(leng)(leng)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)機(ji)(ji)(ji)的(de)(de)(de)(de)優點(dian):(1)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)接牢固度(du)等(deng)(deng)(deng)同(tong)氬弧焊(han)(han)(han)(han)(han)(han)(han)(han)(han)機(ji)(ji)(ji),為(wei)完全冶金(jin)(jin)熔(rong)接,焊(han)(han)(han)(han)(han)(han)(han)(han)(han)材(cai)(cai)硬度(du)可(ke)選,焊(han)(han)(han)(han)(han)(han)(han)(han)(han)后(hou)不(bu)會改變(bian)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)材(cai)(cai)及(ji)母材(cai)(cai)的(de)(de)(de)(de)各項性(xing)(xing)能(neng)。(2)修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu)精(jing)度(du)高,可(ke)使(shi)用(yong)直徑(jing)0.3mm至(zhi)1.6mm圓絲(si)、補(bu)(bu)材(cai)(cai)進(jin)行(xing)修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu),不(bu)會失去原(yuan)基(ji)準面(mian),多余(yu)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)料(liao)(liao)少,后(hou)期(qi)整(zheng)形(xing)容易。(3)修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu)速度(du)快(kuai)(kuai),最快(kuai)(kuai)修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu)量可(ke)達(da)100mm3/min。(4)基(ji)材(cai)(cai)損(sun)傷小(xiao),發熱(re)點(dian)小(xiao),修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu)后(hou)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)點(dian)手指可(ke)觸摸,不(bu)會造成基(ji)材(cai)(cai)退火變(bian)形(xing)。(5)電壓適應范(fan)圍(wei)大,使(shi)用(yong)開關電源,當電壓變(bian)化(hua)(hua)在±20%的(de)(de)(de)(de)范(fan)圍(wei)內波(bo)動時,機(ji)(ji)(ji)器仍能(neng)保證(zheng)正常(chang)工作(zuo),并維持(chi)穩定的(de)(de)(de)(de)輸出(chu)功率。(6)攜帶方便(bian),整(zheng)機(ji)(ji)(ji)體積小(xiao),重量輕,耗電省。2、冷(leng)(leng)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)機(ji)(ji)(ji)的(de)(de)(de)(de)缺點(dian):(1)冷(leng)(leng)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu)后(hou),焊(han)(han)(han)(han)(han)(han)(han)(han)(han)材(cai)(cai)與(yu)母體有(you)一定的(de)(de)(de)(de)色差(cha)。(2)因為(wei)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)材(cai)(cai)材(cai)(cai)質(zhi)原(yuan)因,焊(han)(han)(han)(han)(han)(han)(han)(han)(han)補(bu)(bu)處有(you)漏氣現象,所(suo)以不(bu)能(neng)應用(yong)于水泵、閥(fa)(fa)門(men)等(deng)(deng)(deng)貫(guan)穿性(xing)(xing)的(de)(de)(de)(de)孔(kong)洞(dong)修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu)。(3)無法(fa)處理(li)鋅、錫等(deng)(deng)(deng)熔(rong)點(dian)很低的(de)(de)(de)(de)材(cai)(cai)料(liao)(liao)和(he)硬質(zhi)合(he)(he)金(jin)(jin),高反射性(xing)(xing)及(ji)高導熱(re)性(xing)(xing)材(cai)(cai)料(liao)(liao)如鋁(lv)(lv)(lv)、銅(tong)及(ji)其合(he)(he)金(jin)(jin),焊(han)(han)(han)(han)(han)(han)(han)(han)(han)接性(xing)(xing)會受激(ji)光所(suo)改變(bian)。3、冷(leng)(leng)焊(han)(han)(han)(han)(han)(han)(han)(han)(han)機(ji)(ji)(ji)的(de)(de)(de)(de)用(yong)途:(1)模(mo)(mo)具制造行(xing)業(ye):塑料(liao)(liao)模(mo)(mo)表面(mian)的(de)(de)(de)(de)打(da)毛(mao)、頭(tou)盔塑料(liao)(liao)模(mo)(mo)具分(fen)型面(mian)堆焊(han)(han)(han)(han)(han)(han)(han)(han)(han)修(xiu)(xiu)(xiu)(xiu)(xiu)復(fu)、鋁(lv)(lv)(lv)合(he)(he)金(jin)(jin)壓鑄(zhu)模(mo)(mo)具分(fen)流(liu)錐表面(mian)強化(hua)(hua)等(deng)(deng)(deng)。(2)塑料(liao)(liao)橡(xiang)膠工業(ye):橡(xiang)塑機(ji)(ji)(ji)械零部件修(xiu)(xiu)(xiu)(xiu)(xiu)復(fu),橡(xiang)膠、塑料(liao)(liao)件用(yong)的(de)(de)(de)(de)模(mo)(mo)具超差(cha)、磨損(sun)與(yu)修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu)。(3)汽車與(yu)機(ji)(ji)(ji)車的(de)(de)(de)(de)制造與(yu)維修(xiu)(xiu)(xiu)(xiu)(xiu)行(xing)業(ye):用(yong)于凸輪(lun)、曲軸、活塞、汽缸(gang)、離合(he)(he)器、摩擦(ca)片、排氣閥(fa)(fa)等(deng)(deng)(deng)補(bu)(bu)差(cha)和(he)修(xiu)(xiu)(xiu)(xiu)(xiu)復(fu)。(4)鑄(zhu)造工業(ye)鐵、銅(tong)、鋁(lv)(lv)(lv)鑄(zhu)件砂(sha)眼(yan)氣孔(kong)等(deng)(deng)(deng)缺陷(xian)的(de)(de)(de)(de)修(xiu)(xiu)(xiu)(xiu)(xiu)補(bu)(bu),鋁(lv)(lv)(lv)模(mo)(mo)型磨損(sun)修(xiu)(xiu)(xiu)(xiu)(xiu)復(fu)。
三、冷焊機的使用方法
1、將工件表(biao)面油污(wu)或(huo)者銹跡等清理(li)干凈。2、開(kai)(kai)啟(qi)主(zhu)機(ji)后(hou)面板(ban)的(de)電源總開(kai)(kai)關(guan)(guan),按下啟(qi)動鍵。3、根據(ju)實際(ji)工況,選擇(ze)焊(han)接模式、脈沖(chong)電流和脈沖(chong)時(shi)間。4、打開(kai)(kai)氬(ya)(ya)氣(qi)瓶閥門,調(diao)節氬(ya)(ya)氣(qi)節流閥。5、將焊(han)槍放(fang)(fang)于合適位置,踩腳(jiao)踏(ta)開(kai)(kai)關(guan)(guan),即可產(chan)生(sheng)(sheng)一(yi)個焊(han)點(dian)(dian)。連(lian)續重復該動作(zuo)可產(chan)生(sheng)(sheng)一(yi)條具(ju)有一(yi)定高度和寬度的(de)焊(han)線。如果您操作(zuo)很熟練,可將面板(ban)上的(de)“連(lian)續/單點(dian)(dian)”按鍵選擇(ze)在(zai)“連(lian)續”狀態,踩住腳(jiao)踏(ta)開(kai)(kai)關(guan)(guan)不放(fang)(fang),此時(shi)設備(bei)連(lian)續輸出脈沖(chong),產(chan)生(sheng)(sheng)連(lian)續的(de)焊(han)點(dian)(dian)。6、停止工作(zuo)時(shi)需關(guan)(guan)閉(bi)(bi)焊(han)機(ji)電源,關(guan)(guan)閉(bi)(bi)氬(ya)(ya)氣(qi)瓶閥門。(焊(han)機(ji)關(guan)(guan)閉(bi)(bi)后(hou),設備(bei)面板(ban)上的(de)顯示(shi)仍(reng)然會持續一(yi)段時(shi)間,直至(zhi)余電放(fang)(fang)完。這(zhe)是正常(chang)現象)
四、冷焊機價格多少錢一臺
冷焊機的型號有很多種的,而不同的型號焊出來的效果也不同,價格也不同,市面上的不銹鋼冷焊機,其價格大致可分為四個區間:1、1000-4000元區間(保證冷焊效果前提下,熔深0.3-0.8mm)。2、4000-10000元區間(保證冷焊效果前提下,熔深0.2-1.2mm)。3、10000-20000元區間(保證冷焊效果前提下,熔深0.08-1.6mm)。4、20000-50000元區間(保證冷焊效果前提下,熔深0.2-3.5mm),選擇的時候主要是根據焊接需求和實際應用情況選擇合適價位的產品,并注意考慮冷焊機品牌、焊補(bu)效率、電源(yuan)、控制(zhi)方(fang)式(shi)、抗干擾能力等方(fang)面。