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(shi)(shi)工(gong)(gong)對環(huan)境對人體無毒害；涂層外觀質量優(you)異，附著力及機械強度(du)強；噴(pen)(pen)涂施(shi)(shi)工(gong)(gong)固化時間(jian)短；涂層耐(nai)腐耐(nai)磨能力高出很多；不(bu)(bu)需底漆(qi)；施(shi)(shi)工(gong)(gong)簡便(bian)，對工(gong)(gong)人技術要(yao)求低；成本(ben)低于噴(pen)(pen)漆(qi)工(gong)(gong)藝(yi)；有些施(shi)(shi)工(gong)(gong)場(chang)合已經(jing)明確提出使用靜電噴(pen)(pen)塑工(gong)(gong)藝(yi)處理；靜電噴(pen)(pen)粉噴(pen)(pen)涂過程中不(bu)(bu)會出現(xian)噴(pen)(pen)漆(qi)工(gong)(gong)藝(yi)中常見的流淌現(xian)象(xiang)。

是利用(yong)(yong)電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)現象(xiang)使粉(fen)(fen)末(mo)涂(tu)料吸附在電(dian)(dian)(dian)纜橋架上的(de)(de)。其(qi)(qi)過(guo)(guo)程是這樣(yang)的(de)(de)：粉(fen)(fen)末(mo)涂(tu)料由(you)供粉(fen)(fen)系統借(jie)壓縮空(kong)氣(qi)氣(qi)體送入噴槍(qiang)，在噴槍(qiang)前端加有高壓靜(jing)電(dian)(dian)(dian)發生(sheng)器產(chan)生(sheng)的(de)(de)高壓，由(you)于電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)，在其(qi)(qi)附近產(chan)生(sheng)密集的(de)(de)電(dian)(dian)(dian)荷，粉(fen)(fen)末(mo)由(you)槍(qiang)嘴噴出時，形成帶電(dian)(dian)(dian)涂(tu)料粒(li)子，它受靜(jing)電(dian)(dian)(dian)力(li)的(de)(de)作用(yong)(yong)，被吸到(dao)與其(qi)(qi)相反(fan)的(de)(de)工件上去，隨著噴上的(de)(de)粉(fen)(fen)末(mo)增多(duo)，電(dian)(dian)(dian)荷積(ji)聚也越多(duo)，當(dang)達(da)到(dao)一(yi)定(ding)厚度時，由(you)于產(chan)生(sheng)靜(jing)電(dian)(dian)(dian)排斥(chi)作用(yong)(yong)，便不繼續吸附，從而使整個工件獲得一(yi)定(ding)厚度的(de)(de)粉(fen)(fen)末(mo)涂(tu)層，然后(hou)經過(guo)(guo)熱使粉(fen)(fen)末(mo)熔融、流平、固(gu)化(hua)，即在工件表面形成堅硬(ying)的(de)(de)涂(tu)膜。