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。

不需稀料，施工(gong)(gong)(gong)(gong)(gong)對(dui)環境對(dui)人體無毒害；涂(tu)(tu)層外觀質量優異，附(fu)著(zhu)力(li)及機械強度強；噴涂(tu)(tu)施工(gong)(gong)(gong)(gong)(gong)固化時間短；涂(tu)(tu)層耐(nai)腐(fu)耐(nai)磨能(neng)力(li)高出(chu)很多；不需底(di)漆(qi)；施工(gong)(gong)(gong)(gong)(gong)簡便(bian)，對(dui)工(gong)(gong)(gong)(gong)(gong)人技術(shu)要求低；成本低于噴漆(qi)工(gong)(gong)(gong)(gong)(gong)藝；有些施工(gong)(gong)(gong)(gong)(gong)場合已經明確提出(chu)使(shi)用(yong)靜電(dian)噴塑工(gong)(gong)(gong)(gong)(gong)藝處理；靜電(dian)噴粉(fen)噴涂(tu)(tu)過程中不會出(chu)現噴漆(qi)工(gong)(gong)(gong)(gong)(gong)藝中常見的流(liu)淌現象(xiang)。

是(shi)利用(yong)電(dian)(dian)暈(yun)放電(dian)(dian)現象使(shi)粉(fen)末(mo)(mo)(mo)涂(tu)料(liao)吸附(fu)在(zai)電(dian)(dian)纜橋(qiao)架上的。其過(guo)程(cheng)是(shi)這樣(yang)的：粉(fen)末(mo)(mo)(mo)涂(tu)料(liao)由供粉(fen)系統借(jie)壓(ya)縮空氣氣體送入噴(pen)(pen)槍(qiang)，在(zai)噴(pen)(pen)槍(qiang)前端加有(you)高壓(ya)靜電(dian)(dian)發生器產生的高壓(ya)，由于電(dian)(dian)暈(yun)放電(dian)(dian)，在(zai)其附(fu)近產生密集的電(dian)(dian)荷，粉(fen)末(mo)(mo)(mo)由槍(qiang)嘴噴(pen)(pen)出時(shi)，形成帶電(dian)(dian)涂(tu)料(liao)粒子(zi)，它(ta)受靜電(dian)(dian)力的作用(yong)，被吸到與(yu)其相反的工件上去(qu)，隨著噴(pen)(pen)上的粉(fen)末(mo)(mo)(mo)增多(duo)，電(dian)(dian)荷積(ji)聚也越多(duo)，當達到一定(ding)厚度時(shi)，由于產生靜電(dian)(dian)排斥作用(yong)，便不繼續吸附(fu)，從(cong)而使(shi)整個工件獲得一定(ding)厚度的粉(fen)末(mo)(mo)(mo)涂(tu)層，然后(hou)經過(guo)熱使(shi)粉(fen)末(mo)(mo)(mo)熔融、流平(ping)、固化(hua)，即在(zai)工件表面形成堅硬(ying)的涂(tu)膜。