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(jing)對(dui)人體無毒害；涂(tu)層(ceng)外觀質量優(you)異，附著(zhu)力及機械強度強；噴(pen)(pen)(pen)(pen)涂(tu)施工(gong)(gong)固化時(shi)間短；涂(tu)層(ceng)耐(nai)腐(fu)耐(nai)磨能(neng)力高出很多；不(bu)需底漆(qi)；施工(gong)(gong)簡(jian)便，對(dui)工(gong)(gong)人技術要求低(di)；成本低(di)于(yu)噴(pen)(pen)(pen)(pen)漆(qi)工(gong)(gong)藝(yi)；有些施工(gong)(gong)場合已經明確提(ti)出使用(yong)靜(jing)電噴(pen)(pen)(pen)(pen)塑(su)工(gong)(gong)藝(yi)處理；靜(jing)電噴(pen)(pen)(pen)(pen)粉噴(pen)(pen)(pen)(pen)涂(tu)過程中不(bu)會出現(xian)噴(pen)(pen)(pen)(pen)漆(qi)工(gong)(gong)藝(yi)中常見的流淌現(xian)象。

是(shi)利(li)用電(dian)(dian)暈放電(dian)(dian)現象使粉末(mo)(mo)涂(tu)料(liao)吸(xi)附(fu)在(zai)電(dian)(dian)纜橋(qiao)架上(shang)的(de)(de)。其過(guo)(guo)程是(shi)這樣的(de)(de)：粉末(mo)(mo)涂(tu)料(liao)由供(gong)粉系統借壓(ya)(ya)縮空(kong)氣氣體送(song)入噴(pen)槍，在(zai)噴(pen)槍前端加(jia)有高壓(ya)(ya)靜(jing)電(dian)(dian)發(fa)生(sheng)(sheng)(sheng)器產(chan)生(sheng)(sheng)(sheng)的(de)(de)高壓(ya)(ya)，由于(yu)電(dian)(dian)暈放電(dian)(dian)，在(zai)其附(fu)近產(chan)生(sheng)(sheng)(sheng)密(mi)集的(de)(de)電(dian)(dian)荷，粉末(mo)(mo)由槍嘴噴(pen)出時，形(xing)成(cheng)帶電(dian)(dian)涂(tu)料(liao)粒子(zi)，它受靜(jing)電(dian)(dian)力(li)的(de)(de)作(zuo)用，被(bei)吸(xi)到與其相反的(de)(de)工件上(shang)去，隨著噴(pen)上(shang)的(de)(de)粉末(mo)(mo)增多，電(dian)(dian)荷積聚(ju)也越多，當達到一(yi)定厚度(du)時，由于(yu)產(chan)生(sheng)(sheng)(sheng)靜(jing)電(dian)(dian)排斥作(zuo)用，便不繼續吸(xi)附(fu)，從而使整個(ge)工件獲得一(yi)定厚度(du)的(de)(de)粉末(mo)(mo)涂(tu)層(ceng)，然后(hou)經過(guo)(guo)熱使粉末(mo)(mo)熔融、流(liu)平、固化，即在(zai)工件表面形(xing)成(cheng)堅硬的(de)(de)涂(tu)膜。