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(xu)稀料(liao)，施(shi)工(gong)(gong)(gong)對(dui)(dui)環境對(dui)(dui)人體無毒害(hai)；涂(tu)層外觀(guan)質量優異，附著力及機械強度強；噴(pen)涂(tu)施(shi)工(gong)(gong)(gong)固化時間短；涂(tu)層耐(nai)腐耐(nai)磨能力高出很(hen)多；不(bu)需(xu)底漆；施(shi)工(gong)(gong)(gong)簡便，對(dui)(dui)工(gong)(gong)(gong)人技術要求低(di)；成本(ben)低(di)于噴(pen)漆工(gong)(gong)(gong)藝；有些施(shi)工(gong)(gong)(gong)場合已經(jing)明確提出使用靜電噴(pen)塑(su)工(gong)(gong)(gong)藝處(chu)理；靜電噴(pen)粉(fen)噴(pen)涂(tu)過程中(zhong)不(bu)會出現(xian)噴(pen)漆工(gong)(gong)(gong)藝中(zhong)常見的(de)流淌現(xian)象。

是利用電(dian)(dian)暈放(fang)電(dian)(dian)現(xian)象使粉(fen)(fen)(fen)末(mo)(mo)(mo)涂(tu)料吸(xi)附在電(dian)(dian)纜橋架上的(de)。其(qi)過程是這樣的(de)：粉(fen)(fen)(fen)末(mo)(mo)(mo)涂(tu)料由供粉(fen)(fen)(fen)系(xi)統借壓(ya)縮空氣(qi)氣(qi)體送入噴(pen)槍，在噴(pen)槍前(qian)端(duan)加(jia)有高壓(ya)靜電(dian)(dian)發(fa)生(sheng)器產(chan)(chan)生(sheng)的(de)高壓(ya)，由于電(dian)(dian)暈放(fang)電(dian)(dian)，在其(qi)附近產(chan)(chan)生(sheng)密集的(de)電(dian)(dian)荷，粉(fen)(fen)(fen)末(mo)(mo)(mo)由槍嘴噴(pen)出時，形成(cheng)帶電(dian)(dian)涂(tu)料粒子，它受靜電(dian)(dian)力(li)的(de)作用，被(bei)吸(xi)到(dao)與其(qi)相反(fan)的(de)工(gong)(gong)件上去，隨著噴(pen)上的(de)粉(fen)(fen)(fen)末(mo)(mo)(mo)增多，電(dian)(dian)荷積聚也越(yue)多，當(dang)達到(dao)一定厚(hou)(hou)度時，由于產(chan)(chan)生(sheng)靜電(dian)(dian)排斥(chi)作用，便(bian)不繼續吸(xi)附，從而(er)使整個工(gong)(gong)件獲得一定厚(hou)(hou)度的(de)粉(fen)(fen)(fen)末(mo)(mo)(mo)涂(tu)層，然后經(jing)過熱使粉(fen)(fen)(fen)末(mo)(mo)(mo)熔融、流平(ping)、固化，即在工(gong)(gong)件表(biao)面形成(cheng)堅硬的(de)涂(tu)膜。