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(xi)料(liao)，施(shi)工(gong)(gong)(gong)對環境對人體無毒害；涂(tu)層外觀質量(liang)優異，附著力及(ji)機械(xie)強度強；噴(pen)(pen)涂(tu)施(shi)工(gong)(gong)(gong)固化(hua)時間短(duan)；涂(tu)層耐腐(fu)耐磨能力高(gao)出很多；不需底(di)漆；施(shi)工(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)人技術(shu)要(yao)求低；成本低于噴(pen)(pen)漆工(gong)(gong)(gong)藝；有些施(shi)工(gong)(gong)(gong)場合已經明(ming)確提出使用靜電噴(pen)(pen)塑工(gong)(gong)(gong)藝處理；靜電噴(pen)(pen)粉噴(pen)(pen)涂(tu)過程中不會出現噴(pen)(pen)漆工(gong)(gong)(gong)藝中常見的流淌(tang)現象。

是利用(yong)電(dian)(dian)暈放電(dian)(dian)現象(xiang)使(shi)粉(fen)末(mo)(mo)涂(tu)料(liao)吸附在電(dian)(dian)纜(lan)橋架上的(de)(de)(de)。其過程是這(zhe)樣的(de)(de)(de)：粉(fen)末(mo)(mo)涂(tu)料(liao)由(you)供粉(fen)系統借(jie)壓(ya)縮空氣氣體送(song)入噴槍(qiang)，在噴槍(qiang)前端加(jia)有高壓(ya)靜電(dian)(dian)發生器產(chan)生的(de)(de)(de)高壓(ya)，由(you)于電(dian)(dian)暈放電(dian)(dian)，在其附近產(chan)生密集的(de)(de)(de)電(dian)(dian)荷(he)，粉(fen)末(mo)(mo)由(you)槍(qiang)嘴噴出時，形成帶電(dian)(dian)涂(tu)料(liao)粒(li)子，它受靜電(dian)(dian)力的(de)(de)(de)作用(yong)，被吸到(dao)與其相反的(de)(de)(de)工件(jian)上去，隨著噴上的(de)(de)(de)粉(fen)末(mo)(mo)增多，電(dian)(dian)荷(he)積聚(ju)也越多，當(dang)達到(dao)一(yi)定厚度(du)時，由(you)于產(chan)生靜電(dian)(dian)排斥作用(yong)，便不繼續吸附，從而使(shi)整個工件(jian)獲得一(yi)定厚度(du)的(de)(de)(de)粉(fen)末(mo)(mo)涂(tu)層，然后(hou)經(jing)過熱使(shi)粉(fen)末(mo)(mo)熔融、流平、固化，即在工件(jian)表面(mian)形成堅(jian)硬(ying)的(de)(de)(de)涂(tu)膜。