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)對環境對人體無毒害；涂(tu)(tu)層外觀質量(liang)優(you)異，附著力及機械強度(du)強；噴涂(tu)(tu)施工(gong)(gong)固化時(shi)間短(duan)；涂(tu)(tu)層耐(nai)腐耐(nai)磨(mo)能力高出很多(duo)；不需底漆(qi)；施工(gong)(gong)簡便，對工(gong)(gong)人技術(shu)要求低；成(cheng)本低于(yu)噴漆(qi)工(gong)(gong)藝；有些(xie)施工(gong)(gong)場合已(yi)經明(ming)確提出使(shi)用(yong)靜電噴塑工(gong)(gong)藝處理；靜電噴粉噴涂(tu)(tu)過程中(zhong)不會出現噴漆(qi)工(gong)(gong)藝中(zhong)常(chang)見的流淌現象。

是(shi)利用電(dian)(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)(dian)現象使(shi)粉(fen)(fen)末(mo)涂料(liao)吸附(fu)在電(dian)(dian)(dian)(dian)纜橋(qiao)架(jia)上的(de)(de)。其(qi)過(guo)程是(shi)這(zhe)樣的(de)(de)：粉(fen)(fen)末(mo)涂料(liao)由(you)供粉(fen)(fen)系統借壓縮空氣(qi)氣(qi)體送入噴(pen)槍(qiang)(qiang)，在噴(pen)槍(qiang)(qiang)前端(duan)加有高(gao)壓靜電(dian)(dian)(dian)(dian)發生(sheng)器(qi)產生(sheng)的(de)(de)高(gao)壓，由(you)于電(dian)(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)(dian)，在其(qi)附(fu)近產生(sheng)密集的(de)(de)電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末(mo)由(you)槍(qiang)(qiang)嘴噴(pen)出時(shi)，形(xing)成帶電(dian)(dian)(dian)(dian)涂料(liao)粒(li)子，它受(shou)靜電(dian)(dian)(dian)(dian)力的(de)(de)作(zuo)用，被吸到(dao)與(yu)其(qi)相反的(de)(de)工件(jian)上去(qu)，隨(sui)著噴(pen)上的(de)(de)粉(fen)(fen)末(mo)增多，電(dian)(dian)(dian)(dian)荷積(ji)聚也越多，當達到(dao)一(yi)定厚(hou)度時(shi)，由(you)于產生(sheng)靜電(dian)(dian)(dian)(dian)排斥作(zuo)用，便不(bu)繼續吸附(fu)，從而使(shi)整個工件(jian)獲得一(yi)定厚(hou)度的(de)(de)粉(fen)(fen)末(mo)涂層，然后經過(guo)熱使(shi)粉(fen)(fen)末(mo)熔融(rong)、流平(ping)、固(gu)化，即(ji)在工件(jian)表面形(xing)成堅硬的(de)(de)涂膜(mo)。