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，施工(gong)(gong)(gong)對(dui)環境對(dui)人體(ti)無毒害；涂層(ceng)外觀(guan)質量(liang)優(you)異(yi)，附著(zhu)力及機械強(qiang)度強(qiang)；噴(pen)涂施工(gong)(gong)(gong)固(gu)化時間短(duan)；涂層(ceng)耐腐(fu)耐磨能(neng)力高出很多；不(bu)需底漆(qi)；施工(gong)(gong)(gong)簡便，對(dui)工(gong)(gong)(gong)人技術要求低(di)；成本低(di)于噴(pen)漆(qi)工(gong)(gong)(gong)藝(yi)；有些施工(gong)(gong)(gong)場合已經明確提(ti)出使用靜(jing)電噴(pen)塑工(gong)(gong)(gong)藝(yi)處(chu)理(li)；靜(jing)電噴(pen)粉噴(pen)涂過程中不(bu)會出現噴(pen)漆(qi)工(gong)(gong)(gong)藝(yi)中常見的流淌現象。

是(shi)(shi)利(li)用電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)現象使(shi)粉(fen)(fen)末(mo)涂(tu)料(liao)吸(xi)附(fu)在(zai)電(dian)(dian)(dian)(dian)纜橋架上(shang)的(de)。其過(guo)程是(shi)(shi)這樣的(de)：粉(fen)(fen)末(mo)涂(tu)料(liao)由(you)供(gong)粉(fen)(fen)系統借壓(ya)縮空氣氣體送(song)入噴(pen)槍(qiang)，在(zai)噴(pen)槍(qiang)前端加有高壓(ya)靜電(dian)(dian)(dian)(dian)發(fa)生器產生的(de)高壓(ya)，由(you)于電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)，在(zai)其附(fu)近產生密(mi)集的(de)電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末(mo)由(you)槍(qiang)嘴噴(pen)出(chu)時，形成帶電(dian)(dian)(dian)(dian)涂(tu)料(liao)粒子，它受靜電(dian)(dian)(dian)(dian)力的(de)作(zuo)用，被吸(xi)到與其相反的(de)工件上(shang)去，隨(sui)著噴(pen)上(shang)的(de)粉(fen)(fen)末(mo)增多(duo)，電(dian)(dian)(dian)(dian)荷積聚也越(yue)多(duo)，當(dang)達(da)到一定厚(hou)度(du)時，由(you)于產生靜電(dian)(dian)(dian)(dian)排(pai)斥作(zuo)用，便不繼續(xu)吸(xi)附(fu)，從(cong)而(er)使(shi)整個工件獲(huo)得一定厚(hou)度(du)的(de)粉(fen)(fen)末(mo)涂(tu)層(ceng)，然后經過(guo)熱使(shi)粉(fen)(fen)末(mo)熔(rong)融、流平(ping)、固化，即在(zai)工件表(biao)面形成堅硬的(de)涂(tu)膜。