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)(bu)需(xu)稀(xi)料，施(shi)工(gong)(gong)對(dui)(dui)環境(jing)對(dui)(dui)人體(ti)無毒害；涂層外觀質量(liang)優異，附著(zhu)力(li)及(ji)機械強(qiang)度強(qiang)；噴涂施(shi)工(gong)(gong)固化(hua)時間短；涂層耐腐耐磨能力(li)高出很多(duo)；不(bu)(bu)需(xu)底漆(qi)；施(shi)工(gong)(gong)簡便，對(dui)(dui)工(gong)(gong)人技術(shu)要求低；成本低于噴漆(qi)工(gong)(gong)藝(yi)；有(you)些施(shi)工(gong)(gong)場合(he)已經明確提(ti)出使用(yong)靜(jing)(jing)電(dian)噴塑工(gong)(gong)藝(yi)處理；靜(jing)(jing)電(dian)噴粉噴涂過(guo)程中(zhong)不(bu)(bu)會出現噴漆(qi)工(gong)(gong)藝(yi)中(zhong)常見的流淌現象。

是利用電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)現象使粉(fen)(fen)末涂(tu)料(liao)吸(xi)附(fu)在電(dian)(dian)(dian)(dian)纜橋架上的。其(qi)過程是這(zhe)樣的：粉(fen)(fen)末涂(tu)料(liao)由(you)供粉(fen)(fen)系統借(jie)壓(ya)縮空氣氣體送入噴槍(qiang)，在噴槍(qiang)前端(duan)加有高(gao)壓(ya)靜(jing)(jing)電(dian)(dian)(dian)(dian)發生器產生的高(gao)壓(ya)，由(you)于電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)，在其(qi)附(fu)近產生密集的電(dian)(dian)(dian)(dian)荷(he)，粉(fen)(fen)末由(you)槍(qiang)嘴噴出時(shi)，形成(cheng)帶電(dian)(dian)(dian)(dian)涂(tu)料(liao)粒(li)子，它受(shou)靜(jing)(jing)電(dian)(dian)(dian)(dian)力的作用，被吸(xi)到與其(qi)相反(fan)的工件(jian)上去(qu)，隨著噴上的粉(fen)(fen)末增多，電(dian)(dian)(dian)(dian)荷(he)積聚也(ye)越(yue)多，當達到一(yi)定(ding)厚度(du)時(shi)，由(you)于產生靜(jing)(jing)電(dian)(dian)(dian)(dian)排斥作用，便不繼續吸(xi)附(fu)，從而使整個工件(jian)獲得(de)一(yi)定(ding)厚度(du)的粉(fen)(fen)末涂(tu)層(ceng)，然(ran)后經過熱使粉(fen)(fen)末熔融(rong)、流平、固化，即(ji)在工件(jian)表面形成(cheng)堅硬的涂(tu)膜。