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；涂層外(wai)觀質量(liang)優異(yi)，附著(zhu)力及(ji)機(ji)械(xie)強(qiang)度(du)強(qiang)；噴涂施(shi)工(gong)(gong)固化時間短(duan)；涂層耐腐耐磨(mo)能(neng)力高出很多；不需底漆(qi)；施(shi)工(gong)(gong)簡便，對工(gong)(gong)人技術要求低；成本低于噴漆(qi)工(gong)(gong)藝(yi)(yi)；有(you)些施(shi)工(gong)(gong)場合已經明(ming)確提(ti)出使用靜電噴塑工(gong)(gong)藝(yi)(yi)處(chu)理(li)；靜電噴粉噴涂過程(cheng)中不會(hui)出現噴漆(qi)工(gong)(gong)藝(yi)(yi)中常見的流淌現象。

是(shi)利用電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)現象使(shi)粉(fen)(fen)(fen)末涂料(liao)吸附(fu)在(zai)電(dian)(dian)(dian)(dian)纜橋架上的(de)(de)(de)。其(qi)過程是(shi)這(zhe)樣(yang)的(de)(de)(de)：粉(fen)(fen)(fen)末涂料(liao)由供粉(fen)(fen)(fen)系統借壓縮空氣氣體送(song)入(ru)噴槍，在(zai)噴槍前端加(jia)有(you)高(gao)壓靜電(dian)(dian)(dian)(dian)發生器產(chan)生的(de)(de)(de)高(gao)壓，由于電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)，在(zai)其(qi)附(fu)近產(chan)生密集的(de)(de)(de)電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)(fen)末由槍嘴噴出(chu)時，形成帶電(dian)(dian)(dian)(dian)涂料(liao)粒子，它(ta)受靜電(dian)(dian)(dian)(dian)力的(de)(de)(de)作用，被吸到(dao)與其(qi)相反的(de)(de)(de)工件(jian)上去，隨(sui)著噴上的(de)(de)(de)粉(fen)(fen)(fen)末增多(duo)，電(dian)(dian)(dian)(dian)荷積(ji)聚也越(yue)多(duo)，當達(da)到(dao)一(yi)定厚(hou)度時，由于產(chan)生靜電(dian)(dian)(dian)(dian)排斥作用，便不繼(ji)續吸附(fu)，從而使(shi)整個工件(jian)獲得(de)一(yi)定厚(hou)度的(de)(de)(de)粉(fen)(fen)(fen)末涂層(ceng)，然后經過熱(re)使(shi)粉(fen)(fen)(fen)末熔融(rong)、流平、固化，即在(zai)工件(jian)表(biao)面(mian)形成堅硬的(de)(de)(de)涂膜。