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)對(dui)環境對(dui)人體無(wu)毒害；涂(tu)層(ceng)外觀質(zhi)量優異，附著(zhu)力及機械強度強；噴(pen)(pen)涂(tu)施工(gong)(gong)固化時間短；涂(tu)層(ceng)耐(nai)腐耐(nai)磨能(neng)力高出很多；不(bu)需底漆；施工(gong)(gong)簡便，對(dui)工(gong)(gong)人技術(shu)要求(qiu)低；成本低于(yu)噴(pen)(pen)漆工(gong)(gong)藝(yi)；有些施工(gong)(gong)場合(he)已經明確提出使用靜電(dian)噴(pen)(pen)塑工(gong)(gong)藝(yi)處(chu)理；靜電(dian)噴(pen)(pen)粉噴(pen)(pen)涂(tu)過程中不(bu)會出現(xian)噴(pen)(pen)漆工(gong)(gong)藝(yi)中常見的流淌現(xian)象。

是利(li)用電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)現象使粉末(mo)涂(tu)(tu)料吸附在電(dian)(dian)(dian)(dian)纜橋架(jia)上的(de)(de)(de)。其(qi)過程(cheng)是這樣的(de)(de)(de)：粉末(mo)涂(tu)(tu)料由(you)供(gong)粉系統借壓(ya)(ya)縮空(kong)氣氣體送入噴槍，在噴槍前(qian)端加有高(gao)壓(ya)(ya)靜電(dian)(dian)(dian)(dian)發生(sheng)器產(chan)生(sheng)的(de)(de)(de)高(gao)壓(ya)(ya)，由(you)于電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)，在其(qi)附近產(chan)生(sheng)密集的(de)(de)(de)電(dian)(dian)(dian)(dian)荷，粉末(mo)由(you)槍嘴噴出時，形成帶電(dian)(dian)(dian)(dian)涂(tu)(tu)料粒子(zi)，它(ta)受靜電(dian)(dian)(dian)(dian)力的(de)(de)(de)作(zuo)(zuo)用，被吸到與(yu)其(qi)相(xiang)反(fan)的(de)(de)(de)工件上去，隨(sui)著噴上的(de)(de)(de)粉末(mo)增多(duo)，電(dian)(dian)(dian)(dian)荷積聚也(ye)越多(duo)，當達到一定厚度(du)(du)時，由(you)于產(chan)生(sheng)靜電(dian)(dian)(dian)(dian)排(pai)斥作(zuo)(zuo)用，便不繼續吸附，從而(er)使整個(ge)工件獲得一定厚度(du)(du)的(de)(de)(de)粉末(mo)涂(tu)(tu)層，然后經過熱使粉末(mo)熔融(rong)、流平、固化(hua)，即在工件表面形成堅硬的(de)(de)(de)涂(tu)(tu)膜。