噴塑橋架

噴塑電纜橋架是將塑料粉末噴涂在電纜橋架上的一種表面處理方法。

不需(xu)稀料，施(shi)(shi)工(gong)(gong)(gong)(gong)對(dui)環境對(dui)人(ren)體無(wu)毒(du)害；涂(tu)層外觀質量優異，附著力及機械強度強；噴(pen)(pen)涂(tu)施(shi)(shi)工(gong)(gong)(gong)(gong)固(gu)化時間(jian)短(duan)；涂(tu)層耐腐耐磨能(neng)力高出(chu)(chu)很(hen)多；不需(xu)底漆；施(shi)(shi)工(gong)(gong)(gong)(gong)簡(jian)便，對(dui)工(gong)(gong)(gong)(gong)人(ren)技(ji)術要求低；成本(ben)低于噴(pen)(pen)漆工(gong)(gong)(gong)(gong)藝(yi)；有(you)些(xie)施(shi)(shi)工(gong)(gong)(gong)(gong)場合(he)已經明確提出(chu)(chu)使(shi)用靜電噴(pen)(pen)塑工(gong)(gong)(gong)(gong)藝(yi)處理；靜電噴(pen)(pen)粉噴(pen)(pen)涂(tu)過(guo)程中不會(hui)出(chu)(chu)現噴(pen)(pen)漆工(gong)(gong)(gong)(gong)藝(yi)中常見的(de)流(liu)淌現象。

是(shi)利用電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)現象使粉末(mo)(mo)涂(tu)料(liao)吸附在(zai)(zai)(zai)電(dian)(dian)(dian)纜(lan)橋架(jia)上的。其過程是(shi)這樣的：粉末(mo)(mo)涂(tu)料(liao)由(you)(you)供粉系(xi)統(tong)借壓縮空氣氣體送入(ru)噴槍(qiang)，在(zai)(zai)(zai)噴槍(qiang)前端(duan)加(jia)有高壓靜(jing)電(dian)(dian)(dian)發(fa)生器產(chan)生的高壓，由(you)(you)于(yu)電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)，在(zai)(zai)(zai)其附近產(chan)生密集的電(dian)(dian)(dian)荷(he)，粉末(mo)(mo)由(you)(you)槍(qiang)嘴(zui)噴出時，形(xing)成(cheng)帶電(dian)(dian)(dian)涂(tu)料(liao)粒子，它受靜(jing)電(dian)(dian)(dian)力(li)的作用，被吸到與其相反的工件(jian)(jian)上去，隨著噴上的粉末(mo)(mo)增多，電(dian)(dian)(dian)荷(he)積(ji)聚也越(yue)多，當達到一(yi)定(ding)厚度時，由(you)(you)于(yu)產(chan)生靜(jing)電(dian)(dian)(dian)排斥作用，便(bian)不繼(ji)續吸附，從而使整個工件(jian)(jian)獲得一(yi)定(ding)厚度的粉末(mo)(mo)涂(tu)層，然(ran)后經過熱使粉末(mo)(mo)熔融、流平、固(gu)化，即(ji)在(zai)(zai)(zai)工件(jian)(jian)表面形(xing)成(cheng)堅硬的涂(tu)膜(mo)。