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(liao)，施(shi)工(gong)(gong)(gong)對(dui)環境對(dui)人體無毒害；涂層外(wai)觀質量優異(yi)，附著力及機(ji)械強度強；噴涂施(shi)工(gong)(gong)(gong)固(gu)化時間短；涂層耐腐耐磨能力高出(chu)很多；不需底(di)漆；施(shi)工(gong)(gong)(gong)簡(jian)便，對(dui)工(gong)(gong)(gong)人技(ji)術要求(qiu)低(di)；成本低(di)于噴漆工(gong)(gong)(gong)藝；有(you)些施(shi)工(gong)(gong)(gong)場(chang)合已經明(ming)確提出(chu)使用靜電噴塑工(gong)(gong)(gong)藝處理(li)；靜電噴粉(fen)噴涂過程(cheng)中不會出(chu)現噴漆工(gong)(gong)(gong)藝中常見的流(liu)淌現象。

是利用(yong)(yong)(yong)電(dian)暈放(fang)電(dian)現象使粉(fen)(fen)(fen)末(mo)涂料吸(xi)附(fu)在(zai)電(dian)纜橋架上(shang)的(de)。其(qi)過(guo)程是這樣(yang)的(de)：粉(fen)(fen)(fen)末(mo)涂料由(you)供(gong)粉(fen)(fen)(fen)系統借壓縮空氣(qi)氣(qi)體送入噴(pen)(pen)槍(qiang)，在(zai)噴(pen)(pen)槍(qiang)前端加有(you)高(gao)壓靜電(dian)發生(sheng)(sheng)器產生(sheng)(sheng)的(de)高(gao)壓，由(you)于電(dian)暈放(fang)電(dian)，在(zai)其(qi)附(fu)近產生(sheng)(sheng)密集(ji)的(de)電(dian)荷，粉(fen)(fen)(fen)末(mo)由(you)槍(qiang)嘴(zui)噴(pen)(pen)出時，形成(cheng)帶(dai)電(dian)涂料粒子，它受靜電(dian)力的(de)作(zuo)用(yong)(yong)(yong)，被吸(xi)到(dao)與其(qi)相(xiang)反的(de)工件上(shang)去，隨著噴(pen)(pen)上(shang)的(de)粉(fen)(fen)(fen)末(mo)增多，電(dian)荷積聚也(ye)越多，當達(da)到(dao)一定厚度時，由(you)于產生(sheng)(sheng)靜電(dian)排斥作(zuo)用(yong)(yong)(yong)，便不繼續吸(xi)附(fu)，從而使整個工件獲得(de)一定厚度的(de)粉(fen)(fen)(fen)末(mo)涂層，然后經過(guo)熱使粉(fen)(fen)(fen)末(mo)熔融、流平、固化，即在(zai)工件表面形成(cheng)堅(jian)硬的(de)涂膜。