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)需稀料(liao)，施(shi)工(gong)(gong)(gong)(gong)對(dui)環境對(dui)人體無(wu)毒害；涂層(ceng)外觀質量優異，附著力及(ji)機械強度(du)強；噴(pen)涂施(shi)工(gong)(gong)(gong)(gong)固化(hua)時間短(duan)；涂層(ceng)耐腐(fu)耐磨能力高出(chu)(chu)(chu)很多；不(bu)需底漆(qi)；施(shi)工(gong)(gong)(gong)(gong)簡便，對(dui)工(gong)(gong)(gong)(gong)人技術要求低；成(cheng)本低于(yu)噴(pen)漆(qi)工(gong)(gong)(gong)(gong)藝(yi)；有些施(shi)工(gong)(gong)(gong)(gong)場合已經明確提(ti)出(chu)(chu)(chu)使(shi)用靜電(dian)噴(pen)塑工(gong)(gong)(gong)(gong)藝(yi)處(chu)理；靜電(dian)噴(pen)粉噴(pen)涂過程(cheng)中(zhong)(zhong)不(bu)會出(chu)(chu)(chu)現(xian)噴(pen)漆(qi)工(gong)(gong)(gong)(gong)藝(yi)中(zhong)(zhong)常見(jian)的流(liu)淌現(xian)象。

是(shi)利用(yong)(yong)電(dian)(dian)暈放(fang)電(dian)(dian)現(xian)象使粉(fen)(fen)(fen)(fen)末(mo)涂料(liao)(liao)吸附在(zai)電(dian)(dian)纜橋架上的(de)(de)(de)(de)。其(qi)(qi)過程是(shi)這樣的(de)(de)(de)(de)：粉(fen)(fen)(fen)(fen)末(mo)涂料(liao)(liao)由(you)供(gong)粉(fen)(fen)(fen)(fen)系統借壓縮空(kong)氣氣體送入噴(pen)槍(qiang)，在(zai)噴(pen)槍(qiang)前(qian)端(duan)加有高(gao)壓靜(jing)電(dian)(dian)發生(sheng)器產生(sheng)的(de)(de)(de)(de)高(gao)壓，由(you)于(yu)電(dian)(dian)暈放(fang)電(dian)(dian)，在(zai)其(qi)(qi)附近產生(sheng)密(mi)集(ji)的(de)(de)(de)(de)電(dian)(dian)荷(he)，粉(fen)(fen)(fen)(fen)末(mo)由(you)槍(qiang)嘴噴(pen)出時，形成(cheng)帶電(dian)(dian)涂料(liao)(liao)粒子，它受靜(jing)電(dian)(dian)力(li)的(de)(de)(de)(de)作用(yong)(yong)，被吸到與其(qi)(qi)相反的(de)(de)(de)(de)工(gong)件(jian)上去，隨著噴(pen)上的(de)(de)(de)(de)粉(fen)(fen)(fen)(fen)末(mo)增(zeng)多，電(dian)(dian)荷(he)積(ji)聚也越多，當達(da)到一定厚(hou)度時，由(you)于(yu)產生(sheng)靜(jing)電(dian)(dian)排斥作用(yong)(yong)，便不繼續吸附，從(cong)而(er)使整個工(gong)件(jian)獲得一定厚(hou)度的(de)(de)(de)(de)粉(fen)(fen)(fen)(fen)末(mo)涂層，然后(hou)經過熱(re)使粉(fen)(fen)(fen)(fen)末(mo)熔融、流平(ping)、固(gu)化，即在(zai)工(gong)件(jian)表面(mian)形成(cheng)堅硬的(de)(de)(de)(de)涂膜。