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(bu)(bu)需(xu)稀料，施(shi)(shi)工(gong)(gong)(gong)對(dui)環境對(dui)人(ren)(ren)體無毒害；涂層外觀質量優異，附著力及機(ji)械(xie)強(qiang)度強(qiang)；噴(pen)涂施(shi)(shi)工(gong)(gong)(gong)固化時(shi)間短；涂層耐腐耐磨能(neng)力高出(chu)很(hen)多(duo)；不(bu)(bu)需(xu)底漆；施(shi)(shi)工(gong)(gong)(gong)簡便，對(dui)工(gong)(gong)(gong)人(ren)(ren)技術要求低(di)；成(cheng)本低(di)于噴(pen)漆工(gong)(gong)(gong)藝(yi)；有些施(shi)(shi)工(gong)(gong)(gong)場(chang)合已經明確提出(chu)使(shi)用(yong)靜電噴(pen)塑工(gong)(gong)(gong)藝(yi)處理；靜電噴(pen)粉噴(pen)涂過(guo)程中(zhong)不(bu)(bu)會出(chu)現(xian)噴(pen)漆工(gong)(gong)(gong)藝(yi)中(zhong)常見(jian)的流淌現(xian)象。

是(shi)利用(yong)(yong)(yong)電(dian)暈放電(dian)現象(xiang)使粉(fen)末(mo)涂(tu)料(liao)吸附(fu)(fu)在(zai)電(dian)纜橋架(jia)上(shang)的(de)(de)。其過(guo)(guo)程(cheng)是(shi)這樣的(de)(de)：粉(fen)末(mo)涂(tu)料(liao)由供粉(fen)系統借(jie)壓(ya)縮空氣氣體送入噴(pen)槍，在(zai)噴(pen)槍前端加有高(gao)壓(ya)靜電(dian)發生(sheng)器產生(sheng)的(de)(de)高(gao)壓(ya)，由于電(dian)暈放電(dian)，在(zai)其附(fu)(fu)近產生(sheng)密集(ji)的(de)(de)電(dian)荷(he)，粉(fen)末(mo)由槍嘴噴(pen)出時，形成帶電(dian)涂(tu)料(liao)粒子，它受靜電(dian)力的(de)(de)作用(yong)(yong)(yong)，被(bei)吸到與其相(xiang)反(fan)的(de)(de)工(gong)(gong)件(jian)上(shang)去，隨著噴(pen)上(shang)的(de)(de)粉(fen)末(mo)增(zeng)多，電(dian)荷(he)積(ji)聚也(ye)越多，當(dang)達到一(yi)定(ding)厚(hou)度時，由于產生(sheng)靜電(dian)排斥作用(yong)(yong)(yong)，便不(bu)繼(ji)續吸附(fu)(fu)，從而使整個工(gong)(gong)件(jian)獲得(de)一(yi)定(ding)厚(hou)度的(de)(de)粉(fen)末(mo)涂(tu)層，然(ran)后經過(guo)(guo)熱(re)使粉(fen)末(mo)熔融、流平、固化，即(ji)在(zai)工(gong)(gong)件(jian)表(biao)面形成堅硬的(de)(de)涂(tu)膜。