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，施工(gong)(gong)對環(huan)境(jing)對人體(ti)無毒害(hai)；涂(tu)層(ceng)外觀質量優異(yi)，附著力及機械強(qiang)度強(qiang)；噴(pen)涂(tu)施工(gong)(gong)固化時(shi)間短；涂(tu)層(ceng)耐腐耐磨能力高出(chu)很多；不需(xu)底漆；施工(gong)(gong)簡(jian)便，對工(gong)(gong)人技(ji)術要(yao)求低；成本低于噴(pen)漆工(gong)(gong)藝；有些(xie)施工(gong)(gong)場合已經明確(que)提出(chu)使用(yong)靜電噴(pen)塑工(gong)(gong)藝處理；靜電噴(pen)粉(fen)噴(pen)涂(tu)過程中(zhong)不會出(chu)現噴(pen)漆工(gong)(gong)藝中(zhong)常見的流淌現象。

是(shi)利用電(dian)(dian)(dian)暈放電(dian)(dian)(dian)現象使(shi)(shi)粉(fen)末(mo)(mo)涂(tu)料(liao)吸(xi)附(fu)在(zai)電(dian)(dian)(dian)纜(lan)橋架上的(de)(de)(de)(de)(de)。其(qi)過程是(shi)這樣的(de)(de)(de)(de)(de)：粉(fen)末(mo)(mo)涂(tu)料(liao)由供粉(fen)系(xi)統借壓縮(suo)空氣(qi)(qi)氣(qi)(qi)體送入噴槍，在(zai)噴槍前(qian)端(duan)加有高壓靜(jing)(jing)電(dian)(dian)(dian)發(fa)生(sheng)器產生(sheng)的(de)(de)(de)(de)(de)高壓，由于(yu)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)，在(zai)其(qi)附(fu)近(jin)產生(sheng)密集的(de)(de)(de)(de)(de)電(dian)(dian)(dian)荷(he)，粉(fen)末(mo)(mo)由槍嘴噴出時(shi)，形(xing)成帶電(dian)(dian)(dian)涂(tu)料(liao)粒子，它受(shou)靜(jing)(jing)電(dian)(dian)(dian)力的(de)(de)(de)(de)(de)作(zuo)用，被吸(xi)到(dao)與其(qi)相(xiang)反的(de)(de)(de)(de)(de)工(gong)件(jian)上去(qu)，隨著噴上的(de)(de)(de)(de)(de)粉(fen)末(mo)(mo)增(zeng)多，電(dian)(dian)(dian)荷(he)積聚也越(yue)多，當達到(dao)一定厚度(du)時(shi)，由于(yu)產生(sheng)靜(jing)(jing)電(dian)(dian)(dian)排斥作(zuo)用，便不繼續(xu)吸(xi)附(fu)，從而使(shi)(shi)整個工(gong)件(jian)獲得一定厚度(du)的(de)(de)(de)(de)(de)粉(fen)末(mo)(mo)涂(tu)層，然后經過熱(re)使(shi)(shi)粉(fen)末(mo)(mo)熔融、流平、固化(hua)，即在(zai)工(gong)件(jian)表(biao)面形(xing)成堅硬(ying)的(de)(de)(de)(de)(de)涂(tu)膜。