噴塑電(dian)纜橋架(jia)是將塑料粉末噴涂在(zai)電(dian)纜橋架(jia)上的一種表面處理(li)方(fang)法。
不(bu)需稀料，施(shi)工(gong)對環境無污染，對人體(ti)無毒害；涂層外觀質量(liang)優異，附著力及機(ji)械強度強；噴(pen)(pen)涂施(shi)工(gong)固(gu)化時間短(duan)；涂層耐腐耐磨能(neng)力高(gao)出很(hen)多；不(bu)需底漆(qi)；施(shi)工(gong)簡(jian)便，對工(gong)人技(ji)術(shu)要求(qiu)低；成本低于(yu)噴(pen)(pen)漆(qi)工(gong)藝；有些施(shi)工(gong)場合已(yi)經明確提出必須使用靜(jing)電(dian)噴(pen)(pen)塑工(gong)藝處理；靜(jing)電(dian)噴(pen)(pen)粉噴(pen)(pen)涂過程中(zhong)不(bu)會出現噴(pen)(pen)漆(qi)工(gong)藝中(zhong)常見的流淌現象。
是利(li)用(yong)(yong)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)現(xian)象使(shi)(shi)粉(fen)(fen)末(mo)(mo)涂料(liao)吸附(fu)在電(dian)(dian)(dian)(dian)纜橋架上(shang)的(de)(de)(de)。其過程是這(zhe)樣(yang)的(de)(de)(de)：粉(fen)(fen)末(mo)(mo)涂料(liao)由(you)(you)供粉(fen)(fen)系(xi)統借壓(ya)(ya)縮空(kong)氣氣體送入噴槍，在噴槍前端加有高壓(ya)(ya)靜電(dian)(dian)(dian)(dian)發生(sheng)(sheng)器(qi)產(chan)生(sheng)(sheng)的(de)(de)(de)高壓(ya)(ya)，由(you)(you)于電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)，在其附(fu)近產(chan)生(sheng)(sheng)密集的(de)(de)(de)電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末(mo)(mo)由(you)(you)槍嘴噴出(chu)時(shi)，形(xing)成(cheng)帶(dai)電(dian)(dian)(dian)(dian)涂料(liao)粒(li)子，它受靜電(dian)(dian)(dian)(dian)力的(de)(de)(de)作(zuo)用(yong)(yong)，被吸到與其*性相(xiang)反的(de)(de)(de)工件上(shang)去，隨著噴上(shang)的(de)(de)(de)粉(fen)(fen)末(mo)(mo)增多，電(dian)(dian)(dian)(dian)荷積聚也越多，當達到一(yi)定厚度時(shi)，由(you)(you)于產(chan)生(sheng)(sheng)靜電(dian)(dian)(dian)(dian)排斥作(zuo)用(yong)(yong)，便不繼續吸附(fu)，從而使(shi)(shi)整個工件獲(huo)得(de)一(yi)定厚度的(de)(de)(de)粉(fen)(fen)末(mo)(mo)涂層，然后經過熱(re)使(shi)(shi)粉(fen)(fen)末(mo)(mo)熔融、流平、固(gu)化(hua)，即在工件表面形(xing)成(cheng)堅硬(ying)的(de)(de)(de)涂膜。
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