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)(shi)工(gong)(gong)(gong)(gong)對環境對人體無毒害；涂層外觀質量優異，附著力(li)及機(ji)械強(qiang)度強(qiang)；噴(pen)(pen)涂施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)固化時間短；涂層耐腐耐磨能力(li)高出(chu)很多；不需(xu)底漆；施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)(gong)人技術要求低；成本低于噴(pen)(pen)漆工(gong)(gong)(gong)(gong)藝(yi)；有(you)些(xie)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)場合已經明確提出(chu)使用靜電(dian)噴(pen)(pen)塑工(gong)(gong)(gong)(gong)藝(yi)處理；靜電(dian)噴(pen)(pen)粉噴(pen)(pen)涂過(guo)程(cheng)中(zhong)不會出(chu)現噴(pen)(pen)漆工(gong)(gong)(gong)(gong)藝(yi)中(zhong)常見的流淌現象。

是利用電(dian)暈放電(dian)現(xian)象(xiang)使粉(fen)(fen)末(mo)(mo)涂(tu)料(liao)吸附在(zai)電(dian)纜橋(qiao)架上(shang)(shang)的。其過程(cheng)是這樣的：粉(fen)(fen)末(mo)(mo)涂(tu)料(liao)由(you)供粉(fen)(fen)系統借壓(ya)縮空氣氣體送入噴槍(qiang)，在(zai)噴槍(qiang)前端(duan)加有(you)高壓(ya)靜(jing)電(dian)發生器產(chan)生的高壓(ya)，由(you)于(yu)電(dian)暈放電(dian)，在(zai)其附近產(chan)生密集(ji)的電(dian)荷，粉(fen)(fen)末(mo)(mo)由(you)槍(qiang)嘴噴出時，形成(cheng)帶電(dian)涂(tu)料(liao)粒子，它受(shou)靜(jing)電(dian)力的作用，被吸到與其相反(fan)的工(gong)(gong)件(jian)上(shang)(shang)去，隨著噴上(shang)(shang)的粉(fen)(fen)末(mo)(mo)增(zeng)多，電(dian)荷積聚也(ye)越(yue)多，當達到一(yi)(yi)定厚(hou)度(du)時，由(you)于(yu)產(chan)生靜(jing)電(dian)排斥作用，便(bian)不繼續吸附，從(cong)而使整個工(gong)(gong)件(jian)獲得一(yi)(yi)定厚(hou)度(du)的粉(fen)(fen)末(mo)(mo)涂(tu)層，然后(hou)經過熱(re)使粉(fen)(fen)末(mo)(mo)熔融、流(liu)平、固化(hua)，即在(zai)工(gong)(gong)件(jian)表面(mian)形成(cheng)堅硬的涂(tu)膜(mo)。