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(shi)工(gong)(gong)對環境對人體無毒害；涂(tu)層(ceng)外觀質量(liang)優異，附著力(li)(li)及機械(xie)強(qiang)度強(qiang)；噴(pen)涂(tu)施(shi)工(gong)(gong)固化(hua)時間短；涂(tu)層(ceng)耐腐耐磨能(neng)力(li)(li)高(gao)出(chu)很多；不需底(di)漆；施(shi)工(gong)(gong)簡便，對工(gong)(gong)人技術要求低；成(cheng)本低于噴(pen)漆工(gong)(gong)藝(yi)；有些施(shi)工(gong)(gong)場合已經(jing)明確提(ti)出(chu)使用靜電噴(pen)塑(su)工(gong)(gong)藝(yi)處理；靜電噴(pen)粉噴(pen)涂(tu)過程中(zhong)不會出(chu)現噴(pen)漆工(gong)(gong)藝(yi)中(zhong)常見(jian)的流淌現象。

是(shi)利(li)用電(dian)(dian)暈放(fang)電(dian)(dian)現象使(shi)粉(fen)末(mo)涂(tu)料吸附(fu)在電(dian)(dian)纜橋架上的。其(qi)(qi)過(guo)程(cheng)是(shi)這樣的：粉(fen)末(mo)涂(tu)料由(you)供粉(fen)系統(tong)借(jie)壓縮(suo)空(kong)氣(qi)氣(qi)體送入噴(pen)槍，在噴(pen)槍前端(duan)加有高壓靜電(dian)(dian)發生(sheng)器產(chan)生(sheng)的高壓，由(you)于電(dian)(dian)暈放(fang)電(dian)(dian)，在其(qi)(qi)附(fu)近(jin)產(chan)生(sheng)密集的電(dian)(dian)荷，粉(fen)末(mo)由(you)槍嘴噴(pen)出時(shi)(shi)，形(xing)成(cheng)帶電(dian)(dian)涂(tu)料粒(li)子(zi)，它受靜電(dian)(dian)力的作用，被吸到與其(qi)(qi)相反的工(gong)件(jian)(jian)上去，隨著噴(pen)上的粉(fen)末(mo)增多，電(dian)(dian)荷積(ji)聚(ju)也越多，當達(da)到一定厚度(du)時(shi)(shi)，由(you)于產(chan)生(sheng)靜電(dian)(dian)排斥作用，便不繼續吸附(fu)，從而使(shi)整個工(gong)件(jian)(jian)獲得一定厚度(du)的粉(fen)末(mo)涂(tu)層(ceng)，然后經過(guo)熱使(shi)粉(fen)末(mo)熔融(rong)、流平(ping)、固化，即在工(gong)件(jian)(jian)表(biao)面(mian)形(xing)成(cheng)堅硬的涂(tu)膜。