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。

不需稀料，施工(gong)(gong)(gong)對環境(jing)對人體無毒(du)害；涂層外觀質量(liang)優異，附著力及機(ji)械(xie)強度(du)強；噴涂施工(gong)(gong)(gong)固化時間短；涂層耐腐耐磨能力高出(chu)很(hen)多；不需底漆；施工(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)人技(ji)術要求低(di)；成本低(di)于噴漆工(gong)(gong)(gong)藝；有些施工(gong)(gong)(gong)場合已經明確提出(chu)使用靜電噴塑工(gong)(gong)(gong)藝處理；靜電噴粉噴涂過程中不會出(chu)現(xian)噴漆工(gong)(gong)(gong)藝中常見(jian)的流(liu)淌現(xian)象。

是利用電(dian)暈放電(dian)現(xian)象(xiang)使粉末(mo)涂(tu)料(liao)(liao)吸附(fu)在電(dian)纜橋架上的。其過程是這樣的：粉末(mo)涂(tu)料(liao)(liao)由(you)供粉系統借壓縮空氣氣體送入噴(pen)槍，在噴(pen)槍前(qian)端加(jia)有高壓靜電(dian)發生(sheng)(sheng)器產(chan)(chan)(chan)生(sheng)(sheng)的高壓，由(you)于電(dian)暈放電(dian)，在其附(fu)近產(chan)(chan)(chan)生(sheng)(sheng)密集(ji)的電(dian)荷，粉末(mo)由(you)槍嘴(zui)噴(pen)出時，形(xing)成(cheng)帶電(dian)涂(tu)料(liao)(liao)粒子，它受靜電(dian)力(li)的作(zuo)用，被(bei)吸到(dao)與其相反的工件上去，隨著噴(pen)上的粉末(mo)增多，電(dian)荷積聚也越多，當達(da)到(dao)一(yi)(yi)定(ding)厚(hou)(hou)度時，由(you)于產(chan)(chan)(chan)生(sheng)(sheng)靜電(dian)排斥作(zuo)用，便不繼(ji)續吸附(fu)，從而使整個(ge)工件獲得一(yi)(yi)定(ding)厚(hou)(hou)度的粉末(mo)涂(tu)層(ceng)，然后經過熱使粉末(mo)熔(rong)融、流平、固化，即(ji)在工件表(biao)面形(xing)成(cheng)堅硬的涂(tu)膜。