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(liao)，施(shi)(shi)工(gong)(gong)(gong)對(dui)環境對(dui)人(ren)體無毒害；涂層(ceng)外觀質量優異，附著力及機(ji)械強度強；噴(pen)涂施(shi)(shi)工(gong)(gong)(gong)固(gu)化時(shi)間短；涂層(ceng)耐腐(fu)耐磨能力高(gao)出(chu)很(hen)多；不需底漆(qi)；施(shi)(shi)工(gong)(gong)(gong)簡(jian)便(bian)，對(dui)工(gong)(gong)(gong)人(ren)技術要求低；成本低于噴(pen)漆(qi)工(gong)(gong)(gong)藝(yi)(yi)；有些(xie)施(shi)(shi)工(gong)(gong)(gong)場(chang)合(he)已經明確(que)提(ti)出(chu)使用靜電(dian)噴(pen)塑工(gong)(gong)(gong)藝(yi)(yi)處理；靜電(dian)噴(pen)粉噴(pen)涂過程中(zhong)不會出(chu)現噴(pen)漆(qi)工(gong)(gong)(gong)藝(yi)(yi)中(zhong)常見(jian)的(de)流(liu)淌現象(xiang)。

是(shi)利用電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)現(xian)象使粉(fen)末(mo)涂(tu)料(liao)吸(xi)附(fu)在電(dian)(dian)(dian)(dian)(dian)纜橋架上的(de)。其過程是(shi)這樣(yang)的(de)：粉(fen)末(mo)涂(tu)料(liao)由(you)(you)供(gong)粉(fen)系統借壓縮(suo)空氣氣體送入噴槍(qiang)，在噴槍(qiang)前端加有高(gao)壓靜電(dian)(dian)(dian)(dian)(dian)發(fa)生(sheng)器(qi)產(chan)生(sheng)的(de)高(gao)壓，由(you)(you)于電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)，在其附(fu)近產(chan)生(sheng)密(mi)集的(de)電(dian)(dian)(dian)(dian)(dian)荷，粉(fen)末(mo)由(you)(you)槍(qiang)嘴噴出時(shi)，形(xing)(xing)成帶電(dian)(dian)(dian)(dian)(dian)涂(tu)料(liao)粒(li)子，它受靜電(dian)(dian)(dian)(dian)(dian)力的(de)作用，被(bei)吸(xi)到與其相反的(de)工(gong)件上去，隨著噴上的(de)粉(fen)末(mo)增多，電(dian)(dian)(dian)(dian)(dian)荷積聚也越(yue)多，當(dang)達到一(yi)(yi)定(ding)厚度(du)時(shi)，由(you)(you)于產(chan)生(sheng)靜電(dian)(dian)(dian)(dian)(dian)排斥作用，便不(bu)繼續吸(xi)附(fu)，從而(er)使整個工(gong)件獲(huo)得一(yi)(yi)定(ding)厚度(du)的(de)粉(fen)末(mo)涂(tu)層(ceng)，然后經過熱使粉(fen)末(mo)熔融(rong)、流平、固化，即(ji)在工(gong)件表面形(xing)(xing)成堅(jian)硬的(de)涂(tu)膜(mo)。