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)對(dui)(dui)環境對(dui)(dui)人(ren)體無(wu)毒害；涂層外觀質量優異，附著力及機械強度強；噴涂施工(gong)固化(hua)時(shi)間短；涂層耐腐耐磨能力高(gao)出很多；不需底(di)漆(qi)；施工(gong)簡(jian)便，對(dui)(dui)工(gong)人(ren)技術要求低；成本低于噴漆(qi)工(gong)藝；有(you)些施工(gong)場合已經明確提(ti)出使用靜(jing)電噴塑工(gong)藝處理；靜(jing)電噴粉噴涂過程中(zhong)不會(hui)出現(xian)噴漆(qi)工(gong)藝中(zhong)常見的流淌現(xian)象。

是利用(yong)電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)現象使(shi)粉(fen)(fen)(fen)末(mo)涂料吸(xi)(xi)附(fu)(fu)在(zai)電(dian)(dian)(dian)(dian)(dian)纜橋架上的(de)(de)(de)。其(qi)過(guo)(guo)程(cheng)是這樣的(de)(de)(de)：粉(fen)(fen)(fen)末(mo)涂料由供粉(fen)(fen)(fen)系(xi)統借壓(ya)(ya)縮空氣氣體送入噴槍(qiang)，在(zai)噴槍(qiang)前端加有高壓(ya)(ya)靜電(dian)(dian)(dian)(dian)(dian)發生(sheng)器產(chan)生(sheng)的(de)(de)(de)高壓(ya)(ya)，由于電(dian)(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)(dian)，在(zai)其(qi)附(fu)(fu)近產(chan)生(sheng)密(mi)集的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)荷，粉(fen)(fen)(fen)末(mo)由槍(qiang)嘴噴出時，形成帶(dai)電(dian)(dian)(dian)(dian)(dian)涂料粒子，它(ta)受靜電(dian)(dian)(dian)(dian)(dian)力的(de)(de)(de)作用(yong)，被吸(xi)(xi)到(dao)與其(qi)相反的(de)(de)(de)工件(jian)上去，隨著(zhu)噴上的(de)(de)(de)粉(fen)(fen)(fen)末(mo)增多，電(dian)(dian)(dian)(dian)(dian)荷積聚也(ye)越多，當達到(dao)一(yi)定厚度(du)時，由于產(chan)生(sheng)靜電(dian)(dian)(dian)(dian)(dian)排斥作用(yong)，便不繼續吸(xi)(xi)附(fu)(fu)，從而使(shi)整(zheng)個(ge)工件(jian)獲得一(yi)定厚度(du)的(de)(de)(de)粉(fen)(fen)(fen)末(mo)涂層(ceng)，然后經過(guo)(guo)熱使(shi)粉(fen)(fen)(fen)末(mo)熔融、流平、固化，即在(zai)工件(jian)表(biao)面(mian)形成堅硬的(de)(de)(de)涂膜。