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(xu)稀料，施(shi)(shi)工(gong)(gong)對(dui)環境對(dui)人(ren)體無毒害；涂(tu)層(ceng)外觀質量(liang)優異，附著力及機械強度(du)強；噴涂(tu)施(shi)(shi)工(gong)(gong)固化(hua)時間短；涂(tu)層(ceng)耐腐耐磨(mo)能(neng)力高出(chu)很(hen)多；不需(xu)底漆；施(shi)(shi)工(gong)(gong)簡(jian)便，對(dui)工(gong)(gong)人(ren)技術要求(qiu)低；成本低于噴漆工(gong)(gong)藝；有些施(shi)(shi)工(gong)(gong)場(chang)合已經明(ming)確提出(chu)使用靜電噴塑工(gong)(gong)藝處理(li)；靜電噴粉噴涂(tu)過程中不會(hui)出(chu)現噴漆工(gong)(gong)藝中常見的流(liu)淌(tang)現象(xiang)。

是利用(yong)(yong)電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)現象使粉(fen)末涂料吸附在電(dian)(dian)(dian)纜橋架(jia)上的(de)(de)(de)。其過程(cheng)是這樣的(de)(de)(de)：粉(fen)末涂料由(you)供粉(fen)系統(tong)借壓縮空氣氣體(ti)送入噴槍，在噴槍前(qian)端加有高壓靜電(dian)(dian)(dian)發(fa)生器產生的(de)(de)(de)高壓，由(you)于電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)，在其附近產生密集的(de)(de)(de)電(dian)(dian)(dian)荷，粉(fen)末由(you)槍嘴(zui)噴出時(shi)，形(xing)成(cheng)帶(dai)電(dian)(dian)(dian)涂料粒子(zi)，它受(shou)靜電(dian)(dian)(dian)力的(de)(de)(de)作用(yong)(yong)，被吸到與(yu)其相反的(de)(de)(de)工件(jian)(jian)上去，隨著噴上的(de)(de)(de)粉(fen)末增(zeng)多，電(dian)(dian)(dian)荷積聚也(ye)越多，當達到一(yi)定厚(hou)度時(shi)，由(you)于產生靜電(dian)(dian)(dian)排斥作用(yong)(yong)，便不繼續(xu)吸附，從而使整個工件(jian)(jian)獲得(de)一(yi)定厚(hou)度的(de)(de)(de)粉(fen)末涂層，然(ran)后經過熱使粉(fen)末熔融(rong)、流平、固化，即(ji)在工件(jian)(jian)表面形(xing)成(cheng)堅硬(ying)的(de)(de)(de)涂膜(mo)。