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(xu)稀料，施(shi)工(gong)(gong)(gong)(gong)對(dui)環境對(dui)人(ren)體無毒害；涂(tu)層外觀質量優異(yi)，附著力及機械強度強；噴(pen)涂(tu)施(shi)工(gong)(gong)(gong)(gong)固化(hua)時間短；涂(tu)層耐(nai)腐耐(nai)磨能(neng)力高出(chu)很多；不需(xu)底(di)漆；施(shi)工(gong)(gong)(gong)(gong)簡便(bian)，對(dui)工(gong)(gong)(gong)(gong)人(ren)技(ji)術要求(qiu)低；成本(ben)低于噴(pen)漆工(gong)(gong)(gong)(gong)藝(yi)；有些施(shi)工(gong)(gong)(gong)(gong)場合已(yi)經明確(que)提出(chu)使用(yong)靜(jing)電噴(pen)塑(su)工(gong)(gong)(gong)(gong)藝(yi)處理；靜(jing)電噴(pen)粉噴(pen)涂(tu)過程(cheng)中不會出(chu)現(xian)噴(pen)漆工(gong)(gong)(gong)(gong)藝(yi)中常見(jian)的(de)流淌(tang)現(xian)象。

是(shi)利用(yong)(yong)電(dian)(dian)暈放電(dian)(dian)現象(xiang)使粉末(mo)涂(tu)(tu)料(liao)(liao)吸附(fu)(fu)在(zai)電(dian)(dian)纜橋架上的(de)(de)(de)。其(qi)(qi)過(guo)程(cheng)是(shi)這樣的(de)(de)(de)：粉末(mo)涂(tu)(tu)料(liao)(liao)由供粉系統(tong)借(jie)壓縮空氣(qi)氣(qi)體(ti)送入(ru)噴(pen)槍，在(zai)噴(pen)槍前端(duan)加有高(gao)壓靜電(dian)(dian)發生器產生的(de)(de)(de)高(gao)壓，由于電(dian)(dian)暈放電(dian)(dian)，在(zai)其(qi)(qi)附(fu)(fu)近產生密(mi)集(ji)的(de)(de)(de)電(dian)(dian)荷，粉末(mo)由槍嘴噴(pen)出(chu)時(shi)，形(xing)(xing)成(cheng)帶電(dian)(dian)涂(tu)(tu)料(liao)(liao)粒子，它(ta)受靜電(dian)(dian)力的(de)(de)(de)作用(yong)(yong)，被吸到(dao)與其(qi)(qi)相反的(de)(de)(de)工件(jian)上去，隨著噴(pen)上的(de)(de)(de)粉末(mo)增多，電(dian)(dian)荷積聚也越(yue)多，當達到(dao)一定厚度時(shi)，由于產生靜電(dian)(dian)排斥作用(yong)(yong)，便不(bu)繼續吸附(fu)(fu)，從而使整個工件(jian)獲得一定厚度的(de)(de)(de)粉末(mo)涂(tu)(tu)層，然后經過(guo)熱使粉末(mo)熔融、流平、固化，即在(zai)工件(jian)表(biao)面形(xing)(xing)成(cheng)堅硬的(de)(de)(de)涂(tu)(tu)膜。