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)(gong)對(dui)環境對(dui)人體無毒害；涂層外觀質(zhi)量優異，附著(zhu)力及(ji)機(ji)械(xie)強度強；噴涂施(shi)工(gong)(gong)固化時間短；涂層耐腐耐磨能力高出(chu)(chu)很多(duo)；不需底漆(qi)；施(shi)工(gong)(gong)簡便，對(dui)工(gong)(gong)人技術要求(qiu)低；成(cheng)本低于(yu)噴漆(qi)工(gong)(gong)藝(yi)；有些施(shi)工(gong)(gong)場合已經明確提出(chu)(chu)使用靜電噴塑工(gong)(gong)藝(yi)處(chu)理；靜電噴粉噴涂過(guo)程(cheng)中不會(hui)出(chu)(chu)現噴漆(qi)工(gong)(gong)藝(yi)中常見的流淌現象(xiang)。

是利用電(dian)(dian)暈放電(dian)(dian)現象使(shi)粉(fen)末涂(tu)(tu)料吸附在電(dian)(dian)纜橋架(jia)上的。其過程是這樣的：粉(fen)末涂(tu)(tu)料由供粉(fen)系統借壓縮空氣氣體送入噴(pen)(pen)槍(qiang)，在噴(pen)(pen)槍(qiang)前(qian)端加有高壓靜(jing)(jing)電(dian)(dian)發生(sheng)器產生(sheng)的高壓，由于(yu)電(dian)(dian)暈放電(dian)(dian)，在其附近產生(sheng)密集的電(dian)(dian)荷(he)，粉(fen)末由槍(qiang)嘴噴(pen)(pen)出(chu)時(shi)，形成帶(dai)電(dian)(dian)涂(tu)(tu)料粒子，它受(shou)靜(jing)(jing)電(dian)(dian)力的作(zuo)用，被吸到與其相反的工件(jian)上去(qu)，隨著噴(pen)(pen)上的粉(fen)末增(zeng)多，電(dian)(dian)荷(he)積聚(ju)也(ye)越(yue)多，當達到一定(ding)厚(hou)度時(shi)，由于(yu)產生(sheng)靜(jing)(jing)電(dian)(dian)排斥作(zuo)用，便不繼續吸附，從而(er)使(shi)整個工件(jian)獲(huo)得一定(ding)厚(hou)度的粉(fen)末涂(tu)(tu)層(ceng)，然后經(jing)過熱使(shi)粉(fen)末熔(rong)融、流(liu)平、固化(hua)，即(ji)在工件(jian)表面形成堅硬的涂(tu)(tu)膜(mo)。