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)需稀(xi)料(liao)，施(shi)工(gong)(gong)對環(huan)境對人(ren)體無(wu)毒(du)害；涂層外觀質量優異，附著力及機械強(qiang)度強(qiang)；噴(pen)涂施(shi)工(gong)(gong)固化(hua)時間(jian)短；涂層耐腐耐磨能(neng)力高出很(hen)多；不(bu)(bu)需底漆；施(shi)工(gong)(gong)簡便，對工(gong)(gong)人(ren)技(ji)術要(yao)求低(di)；成本低(di)于噴(pen)漆工(gong)(gong)藝(yi)(yi)；有(you)些(xie)施(shi)工(gong)(gong)場合已經(jing)明確提出使用靜電(dian)噴(pen)塑工(gong)(gong)藝(yi)(yi)處理；靜電(dian)噴(pen)粉噴(pen)涂過程中不(bu)(bu)會出現(xian)噴(pen)漆工(gong)(gong)藝(yi)(yi)中常見的流淌現(xian)象。

是利(li)用電(dian)(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)(dian)現象使粉(fen)(fen)末涂(tu)料吸(xi)(xi)附(fu)在電(dian)(dian)(dian)(dian)(dian)纜橋架(jia)上(shang)的(de)。其過程是這(zhe)樣的(de)：粉(fen)(fen)末涂(tu)料由(you)(you)供粉(fen)(fen)系統(tong)借壓縮空(kong)氣氣體送入(ru)噴(pen)(pen)槍，在噴(pen)(pen)槍前端加(jia)有高壓靜電(dian)(dian)(dian)(dian)(dian)發(fa)生器產生的(de)高壓，由(you)(you)于電(dian)(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)(dian)，在其附(fu)近產生密集的(de)電(dian)(dian)(dian)(dian)(dian)荷(he)，粉(fen)(fen)末由(you)(you)槍嘴噴(pen)(pen)出(chu)時，形成(cheng)帶電(dian)(dian)(dian)(dian)(dian)涂(tu)料粒子，它受靜電(dian)(dian)(dian)(dian)(dian)力的(de)作用，被吸(xi)(xi)到(dao)與其相反的(de)工(gong)(gong)件上(shang)去(qu)，隨著噴(pen)(pen)上(shang)的(de)粉(fen)(fen)末增多，電(dian)(dian)(dian)(dian)(dian)荷(he)積(ji)聚也越多，當達到(dao)一定厚度(du)時，由(you)(you)于產生靜電(dian)(dian)(dian)(dian)(dian)排斥作用，便(bian)不繼續吸(xi)(xi)附(fu)，從而使整個工(gong)(gong)件獲得(de)一定厚度(du)的(de)粉(fen)(fen)末涂(tu)層，然(ran)后經(jing)過熱使粉(fen)(fen)末熔融、流平、固化，即(ji)在工(gong)(gong)件表(biao)面形成(cheng)堅硬的(de)涂(tu)膜。