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，施(shi)工(gong)對環境對人(ren)體無(wu)毒害(hai)；涂(tu)層外觀(guan)質量優異，附著力及機械強度強；噴(pen)涂(tu)施(shi)工(gong)固化時間(jian)短(duan)；涂(tu)層耐腐耐磨能力高出(chu)很多；不需底漆；施(shi)工(gong)簡便，對工(gong)人(ren)技術要求低；成本低于(yu)噴(pen)漆工(gong)藝(yi)；有些施(shi)工(gong)場合已經明(ming)確提出(chu)使用靜(jing)電噴(pen)塑工(gong)藝(yi)處理；靜(jing)電噴(pen)粉噴(pen)涂(tu)過(guo)程中不會出(chu)現(xian)噴(pen)漆工(gong)藝(yi)中常見(jian)的流淌現(xian)象。

是(shi)利用電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)現象(xiang)使粉末涂(tu)料(liao)吸附在(zai)電(dian)(dian)(dian)纜(lan)橋架上(shang)的。其過(guo)程是(shi)這樣(yang)的：粉末涂(tu)料(liao)由(you)供粉系統(tong)借壓(ya)(ya)縮空氣氣體送入噴(pen)槍(qiang)(qiang)，在(zai)噴(pen)槍(qiang)(qiang)前端加有高(gao)壓(ya)(ya)靜電(dian)(dian)(dian)發(fa)生器產生的高(gao)壓(ya)(ya)，由(you)于電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)，在(zai)其附近產生密集(ji)的電(dian)(dian)(dian)荷，粉末由(you)槍(qiang)(qiang)嘴噴(pen)出時，形(xing)(xing)成帶電(dian)(dian)(dian)涂(tu)料(liao)粒子，它(ta)受(shou)靜電(dian)(dian)(dian)力(li)的作(zuo)(zuo)用，被吸到(dao)與其相反的工(gong)件(jian)(jian)上(shang)去，隨(sui)著(zhu)噴(pen)上(shang)的粉末增多，電(dian)(dian)(dian)荷積聚也越(yue)多，當達到(dao)一定厚度時，由(you)于產生靜電(dian)(dian)(dian)排斥作(zuo)(zuo)用，便不繼續吸附，從而使整個(ge)工(gong)件(jian)(jian)獲得(de)一定厚度的粉末涂(tu)層，然(ran)后經(jing)過(guo)熱使粉末熔融(rong)、流平、固化(hua)，即在(zai)工(gong)件(jian)(jian)表面(mian)形(xing)(xing)成堅硬的涂(tu)膜。