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)環境對(dui)人體無毒害(hai)；涂層外觀質量優異，附(fu)著力及機械強度(du)強；噴(pen)(pen)涂施(shi)工(gong)(gong)固化時間(jian)短；涂層耐腐耐磨能力高出很多；不(bu)(bu)需(xu)底漆(qi)；施(shi)工(gong)(gong)簡便，對(dui)工(gong)(gong)人技(ji)術要求低(di)；成本低(di)于噴(pen)(pen)漆(qi)工(gong)(gong)藝(yi)；有些(xie)施(shi)工(gong)(gong)場合已經(jing)明確提(ti)出使用靜電噴(pen)(pen)塑工(gong)(gong)藝(yi)處理；靜電噴(pen)(pen)粉(fen)噴(pen)(pen)涂過(guo)程中不(bu)(bu)會(hui)出現噴(pen)(pen)漆(qi)工(gong)(gong)藝(yi)中常(chang)見的流(liu)淌現象。

是利用(yong)電(dian)(dian)暈放電(dian)(dian)現(xian)象使(shi)粉(fen)(fen)(fen)末(mo)涂(tu)料(liao)(liao)吸(xi)附在(zai)電(dian)(dian)纜橋架(jia)上(shang)的(de)。其過程是這樣的(de)：粉(fen)(fen)(fen)末(mo)涂(tu)料(liao)(liao)由(you)供粉(fen)(fen)(fen)系統借壓(ya)(ya)縮空(kong)氣(qi)(qi)氣(qi)(qi)體送入(ru)噴(pen)(pen)槍(qiang)(qiang)，在(zai)噴(pen)(pen)槍(qiang)(qiang)前端加有高(gao)壓(ya)(ya)靜電(dian)(dian)發生(sheng)器產生(sheng)的(de)高(gao)壓(ya)(ya)，由(you)于電(dian)(dian)暈放電(dian)(dian)，在(zai)其附近產生(sheng)密集的(de)電(dian)(dian)荷(he)(he)，粉(fen)(fen)(fen)末(mo)由(you)槍(qiang)(qiang)嘴(zui)噴(pen)(pen)出時，形成帶電(dian)(dian)涂(tu)料(liao)(liao)粒子，它(ta)受靜電(dian)(dian)力的(de)作用(yong)，被吸(xi)到(dao)與(yu)其相(xiang)反的(de)工件(jian)上(shang)去，隨(sui)著噴(pen)(pen)上(shang)的(de)粉(fen)(fen)(fen)末(mo)增多，電(dian)(dian)荷(he)(he)積聚也越多，當達到(dao)一(yi)定(ding)厚度(du)(du)時，由(you)于產生(sheng)靜電(dian)(dian)排斥作用(yong)，便不(bu)繼(ji)續吸(xi)附，從而(er)使(shi)整個工件(jian)獲得(de)一(yi)定(ding)厚度(du)(du)的(de)粉(fen)(fen)(fen)末(mo)涂(tu)層，然后經(jing)過熱(re)使(shi)粉(fen)(fen)(fen)末(mo)熔融、流平(ping)、固化(hua)，即在(zai)工件(jian)表面(mian)形成堅(jian)硬的(de)涂(tu)膜。