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，施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)對環境對人體(ti)無毒害；涂(tu)層外觀質量優異(yi)，附著力及(ji)機械強度強；噴(pen)涂(tu)施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)固化時(shi)間短(duan)；涂(tu)層耐(nai)腐(fu)耐(nai)磨能(neng)力高出很多；不需底(di)漆(qi)(qi)；施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)簡(jian)便，對工(gong)(gong)(gong)(gong)人技術要求低；成(cheng)本低于噴(pen)漆(qi)(qi)工(gong)(gong)(gong)(gong)藝(yi)；有些施(shi)(shi)(shi)工(gong)(gong)(gong)(gong)場合已經明確提出使用靜(jing)電噴(pen)塑(su)工(gong)(gong)(gong)(gong)藝(yi)處理；靜(jing)電噴(pen)粉噴(pen)涂(tu)過程中不會(hui)出現(xian)噴(pen)漆(qi)(qi)工(gong)(gong)(gong)(gong)藝(yi)中常見的流(liu)淌現(xian)象。

是(shi)利(li)用(yong)電(dian)(dian)(dian)暈放(fang)(fang)電(dian)(dian)(dian)現象(xiang)使(shi)粉(fen)末涂(tu)料(liao)(liao)吸(xi)附(fu)在電(dian)(dian)(dian)纜橋架上(shang)的(de)(de)。其過(guo)程是(shi)這樣的(de)(de)：粉(fen)末涂(tu)料(liao)(liao)由(you)(you)供粉(fen)系統借(jie)壓縮(suo)空氣氣體送入噴槍，在噴槍前端(duan)加有高壓靜(jing)(jing)電(dian)(dian)(dian)發(fa)生器產(chan)(chan)(chan)生的(de)(de)高壓，由(you)(you)于電(dian)(dian)(dian)暈放(fang)(fang)電(dian)(dian)(dian)，在其附(fu)近產(chan)(chan)(chan)生密集的(de)(de)電(dian)(dian)(dian)荷，粉(fen)末由(you)(you)槍嘴噴出時，形成帶電(dian)(dian)(dian)涂(tu)料(liao)(liao)粒子，它受(shou)靜(jing)(jing)電(dian)(dian)(dian)力(li)的(de)(de)作用(yong)，被吸(xi)到與其相反(fan)的(de)(de)工(gong)件(jian)上(shang)去(qu)，隨著噴上(shang)的(de)(de)粉(fen)末增多(duo)，電(dian)(dian)(dian)荷積聚也越多(duo)，當達到一(yi)(yi)定(ding)厚度(du)時，由(you)(you)于產(chan)(chan)(chan)生靜(jing)(jing)電(dian)(dian)(dian)排斥作用(yong)，便不(bu)繼續吸(xi)附(fu)，從而使(shi)整個工(gong)件(jian)獲得一(yi)(yi)定(ding)厚度(du)的(de)(de)粉(fen)末涂(tu)層，然后經過(guo)熱使(shi)粉(fen)末熔融、流平、固化(hua)，即在工(gong)件(jian)表(biao)面形成堅硬的(de)(de)涂(tu)膜(mo)。