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)需稀料，施(shi)工(gong)(gong)(gong)對環境對人體無毒(du)害；涂(tu)層外觀質量優(you)異，附著力及機械強度(du)強；噴(pen)涂(tu)施(shi)工(gong)(gong)(gong)固化時間短(duan)；涂(tu)層耐腐耐磨能力高出(chu)很(hen)多；不(bu)需底漆(qi)；施(shi)工(gong)(gong)(gong)簡(jian)便，對工(gong)(gong)(gong)人技(ji)術要(yao)求低；成本低于噴(pen)漆(qi)工(gong)(gong)(gong)藝；有些(xie)施(shi)工(gong)(gong)(gong)場合(he)已經(jing)明確提出(chu)使用靜(jing)(jing)電(dian)噴(pen)塑工(gong)(gong)(gong)藝處理；靜(jing)(jing)電(dian)噴(pen)粉噴(pen)涂(tu)過程中(zhong)不(bu)會出(chu)現噴(pen)漆(qi)工(gong)(gong)(gong)藝中(zhong)常見的(de)流淌現象(xiang)。

是利用電(dian)(dian)暈放(fang)電(dian)(dian)現象使(shi)(shi)粉(fen)末涂(tu)料(liao)吸(xi)附(fu)在(zai)電(dian)(dian)纜(lan)橋架上(shang)的(de)(de)(de)(de)。其過(guo)程是這樣的(de)(de)(de)(de)：粉(fen)末涂(tu)料(liao)由(you)(you)供粉(fen)系(xi)統(tong)借壓(ya)縮空氣氣體(ti)送入噴(pen)槍(qiang)，在(zai)噴(pen)槍(qiang)前(qian)端加有高壓(ya)靜(jing)電(dian)(dian)發生(sheng)器(qi)產生(sheng)的(de)(de)(de)(de)高壓(ya)，由(you)(you)于電(dian)(dian)暈放(fang)電(dian)(dian)，在(zai)其附(fu)近(jin)產生(sheng)密集的(de)(de)(de)(de)電(dian)(dian)荷(he)，粉(fen)末由(you)(you)槍(qiang)嘴噴(pen)出時，形成帶電(dian)(dian)涂(tu)料(liao)粒子，它受靜(jing)電(dian)(dian)力的(de)(de)(de)(de)作用，被吸(xi)到與其相反的(de)(de)(de)(de)工(gong)件(jian)上(shang)去(qu)，隨著噴(pen)上(shang)的(de)(de)(de)(de)粉(fen)末增多，電(dian)(dian)荷(he)積聚也越多，當(dang)達(da)到一定(ding)厚(hou)度(du)時，由(you)(you)于產生(sheng)靜(jing)電(dian)(dian)排斥作用，便不繼續吸(xi)附(fu)，從而使(shi)(shi)整個工(gong)件(jian)獲得一定(ding)厚(hou)度(du)的(de)(de)(de)(de)粉(fen)末涂(tu)層，然后經過(guo)熱使(shi)(shi)粉(fen)末熔融、流平、固(gu)化(hua)，即在(zai)工(gong)件(jian)表面形成堅硬的(de)(de)(de)(de)涂(tu)膜(mo)。