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(xi)料，施(shi)(shi)工(gong)對(dui)環境對(dui)人體(ti)無(wu)毒害(hai)；涂(tu)層外(wai)觀質量優異，附著(zhu)力及(ji)機械強度強；噴(pen)(pen)涂(tu)施(shi)(shi)工(gong)固化時間(jian)短；涂(tu)層耐(nai)腐耐(nai)磨能力高出(chu)很多；不需底漆；施(shi)(shi)工(gong)簡便，對(dui)工(gong)人技術要求低(di)；成本低(di)于噴(pen)(pen)漆工(gong)藝(yi)；有些施(shi)(shi)工(gong)場合已經明確(que)提出(chu)使(shi)用(yong)靜(jing)電噴(pen)(pen)塑工(gong)藝(yi)處理(li)；靜(jing)電噴(pen)(pen)粉(fen)噴(pen)(pen)涂(tu)過程中(zhong)不會(hui)出(chu)現(xian)噴(pen)(pen)漆工(gong)藝(yi)中(zhong)常(chang)見的(de)流淌現(xian)象。

是利用(yong)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)現象使粉(fen)末(mo)涂(tu)料吸附在(zai)電(dian)(dian)(dian)(dian)纜(lan)橋(qiao)架上(shang)的(de)。其過程是這樣的(de)：粉(fen)末(mo)涂(tu)料由供粉(fen)系統借壓縮空氣氣體(ti)送入(ru)噴槍(qiang)，在(zai)噴槍(qiang)前端(duan)加有高壓靜電(dian)(dian)(dian)(dian)發生(sheng)器產(chan)生(sheng)的(de)高壓，由于(yu)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)，在(zai)其附近產(chan)生(sheng)密集(ji)的(de)電(dian)(dian)(dian)(dian)荷(he)，粉(fen)末(mo)由槍(qiang)嘴噴出(chu)時，形成(cheng)帶(dai)電(dian)(dian)(dian)(dian)涂(tu)料粒子(zi)，它受靜電(dian)(dian)(dian)(dian)力(li)的(de)作用(yong)，被吸到(dao)與其相反的(de)工(gong)(gong)件上(shang)去，隨著噴上(shang)的(de)粉(fen)末(mo)增(zeng)多，電(dian)(dian)(dian)(dian)荷(he)積聚也越多，當(dang)達到(dao)一定厚(hou)度時，由于(yu)產(chan)生(sheng)靜電(dian)(dian)(dian)(dian)排斥作用(yong)，便不繼續吸附，從(cong)而使整個(ge)工(gong)(gong)件獲得一定厚(hou)度的(de)粉(fen)末(mo)涂(tu)層，然(ran)后經過熱使粉(fen)末(mo)熔融、流平、固化，即在(zai)工(gong)(gong)件表(biao)面形成(cheng)堅硬的(de)涂(tu)膜。