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，施(shi)工(gong)(gong)(gong)對(dui)(dui)環境(jing)對(dui)(dui)人(ren)體無毒害；涂(tu)層外觀質量優異，附著力及機(ji)械強度強；噴(pen)(pen)(pen)涂(tu)施(shi)工(gong)(gong)(gong)固化時間短；涂(tu)層耐腐耐磨能力高出很(hen)多；不(bu)需底漆(qi)；施(shi)工(gong)(gong)(gong)簡(jian)便，對(dui)(dui)工(gong)(gong)(gong)人(ren)技術要求低；成本低于噴(pen)(pen)(pen)漆(qi)工(gong)(gong)(gong)藝(yi)；有些施(shi)工(gong)(gong)(gong)場合已經(jing)明(ming)確提出使用靜電噴(pen)(pen)(pen)塑工(gong)(gong)(gong)藝(yi)處理；靜電噴(pen)(pen)(pen)粉噴(pen)(pen)(pen)涂(tu)過程中不(bu)會出現噴(pen)(pen)(pen)漆(qi)工(gong)(gong)(gong)藝(yi)中常(chang)見的流淌現象(xiang)。

是利(li)用電(dian)(dian)暈(yun)放電(dian)(dian)現象使(shi)粉(fen)末涂料吸附(fu)(fu)在(zai)電(dian)(dian)纜橋架(jia)上的(de)(de)。其(qi)(qi)過程是這樣的(de)(de)：粉(fen)末涂料由供粉(fen)系統借壓(ya)縮空氣(qi)氣(qi)體送入噴(pen)槍，在(zai)噴(pen)槍前端加有高壓(ya)靜電(dian)(dian)發生器產生的(de)(de)高壓(ya)，由于電(dian)(dian)暈(yun)放電(dian)(dian)，在(zai)其(qi)(qi)附(fu)(fu)近產生密集的(de)(de)電(dian)(dian)荷，粉(fen)末由槍嘴噴(pen)出時，形成帶(dai)電(dian)(dian)涂料粒子，它受靜電(dian)(dian)力的(de)(de)作用，被吸到(dao)(dao)與其(qi)(qi)相反(fan)的(de)(de)工(gong)件(jian)上去，隨著噴(pen)上的(de)(de)粉(fen)末增(zeng)多(duo)，電(dian)(dian)荷積(ji)聚(ju)也越多(duo)，當達(da)到(dao)(dao)一定厚度時，由于產生靜電(dian)(dian)排斥作用，便不繼續吸附(fu)(fu)，從(cong)而使(shi)整個工(gong)件(jian)獲得一定厚度的(de)(de)粉(fen)末涂層(ceng)，然后(hou)經過熱使(shi)粉(fen)末熔融、流平、固化，即在(zai)工(gong)件(jian)表面形成堅硬的(de)(de)涂膜。