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)需稀料，施工(gong)(gong)(gong)(gong)對環境對人體無毒害；涂(tu)層(ceng)外觀質量優異(yi)，附著力及機(ji)械強度強；噴(pen)涂(tu)施工(gong)(gong)(gong)(gong)固化時間短；涂(tu)層(ceng)耐腐耐磨能力高出(chu)(chu)很多；不(bu)(bu)需底漆(qi)；施工(gong)(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)(gong)人技術要求低(di)；成本低(di)于噴(pen)漆(qi)工(gong)(gong)(gong)(gong)藝(yi)；有些施工(gong)(gong)(gong)(gong)場合已(yi)經明確(que)提出(chu)(chu)使用靜(jing)電噴(pen)塑工(gong)(gong)(gong)(gong)藝(yi)處理；靜(jing)電噴(pen)粉噴(pen)涂(tu)過程(cheng)中不(bu)(bu)會出(chu)(chu)現(xian)噴(pen)漆(qi)工(gong)(gong)(gong)(gong)藝(yi)中常見的流(liu)淌現(xian)象(xiang)。

是利用(yong)電(dian)暈放電(dian)現象使粉(fen)末(mo)涂(tu)料(liao)吸(xi)(xi)附在(zai)電(dian)纜橋架上(shang)的(de)。其(qi)過程是這(zhe)樣的(de)：粉(fen)末(mo)涂(tu)料(liao)由供粉(fen)系統(tong)借壓縮(suo)空氣氣體送(song)入噴槍，在(zai)噴槍前端加有高(gao)壓靜電(dian)發生器(qi)產(chan)(chan)(chan)生的(de)高(gao)壓，由于電(dian)暈放電(dian)，在(zai)其(qi)附近產(chan)(chan)(chan)生密集的(de)電(dian)荷，粉(fen)末(mo)由槍嘴噴出時，形(xing)成帶電(dian)涂(tu)料(liao)粒(li)子，它受靜電(dian)力的(de)作(zuo)用(yong)，被吸(xi)(xi)到(dao)與其(qi)相(xiang)反的(de)工(gong)(gong)件上(shang)去，隨(sui)著(zhu)噴上(shang)的(de)粉(fen)末(mo)增多，電(dian)荷積聚也(ye)越多，當達(da)到(dao)一(yi)定厚(hou)度(du)(du)時，由于產(chan)(chan)(chan)生靜電(dian)排斥作(zuo)用(yong)，便不繼續吸(xi)(xi)附，從(cong)而使整個(ge)工(gong)(gong)件獲得一(yi)定厚(hou)度(du)(du)的(de)粉(fen)末(mo)涂(tu)層，然后經過熱使粉(fen)末(mo)熔(rong)融、流平、固化，即在(zai)工(gong)(gong)件表面形(xing)成堅硬的(de)涂(tu)膜。