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(xi)料，施(shi)工(gong)(gong)對(dui)環境對(dui)人體無毒(du)害；涂(tu)層(ceng)外觀質(zhi)量優異，附著力及機械強(qiang)度(du)強(qiang)；噴(pen)(pen)涂(tu)施(shi)工(gong)(gong)固化時間(jian)短；涂(tu)層(ceng)耐腐耐磨能力高出(chu)(chu)很多(duo)；不需底漆；施(shi)工(gong)(gong)簡便，對(dui)工(gong)(gong)人技術要(yao)求低(di)；成本低(di)于噴(pen)(pen)漆工(gong)(gong)藝(yi)；有些(xie)施(shi)工(gong)(gong)場合已經明(ming)確(que)提(ti)出(chu)(chu)使(shi)用靜電(dian)噴(pen)(pen)塑工(gong)(gong)藝(yi)處理；靜電(dian)噴(pen)(pen)粉噴(pen)(pen)涂(tu)過(guo)程(cheng)中(zhong)不會出(chu)(chu)現噴(pen)(pen)漆工(gong)(gong)藝(yi)中(zhong)常見的流淌現象。

是(shi)利(li)用電(dian)(dian)(dian)暈放電(dian)(dian)(dian)現(xian)象使(shi)粉(fen)末(mo)(mo)涂(tu)(tu)料吸附在(zai)(zai)電(dian)(dian)(dian)纜橋(qiao)架(jia)上(shang)的(de)(de)。其過程是(shi)這(zhe)樣(yang)的(de)(de)：粉(fen)末(mo)(mo)涂(tu)(tu)料由(you)(you)供粉(fen)系統借壓縮空氣氣體送入(ru)噴(pen)槍(qiang)，在(zai)(zai)噴(pen)槍(qiang)前端加有高(gao)壓靜電(dian)(dian)(dian)發(fa)生(sheng)(sheng)器產生(sheng)(sheng)的(de)(de)高(gao)壓，由(you)(you)于電(dian)(dian)(dian)暈放電(dian)(dian)(dian)，在(zai)(zai)其附近產生(sheng)(sheng)密集(ji)的(de)(de)電(dian)(dian)(dian)荷(he)，粉(fen)末(mo)(mo)由(you)(you)槍(qiang)嘴(zui)噴(pen)出時，形(xing)成帶電(dian)(dian)(dian)涂(tu)(tu)料粒子，它受靜電(dian)(dian)(dian)力的(de)(de)作(zuo)用，被吸到與其相反的(de)(de)工件上(shang)去，隨著噴(pen)上(shang)的(de)(de)粉(fen)末(mo)(mo)增(zeng)多(duo)，電(dian)(dian)(dian)荷(he)積(ji)聚也越多(duo)，當達到一定厚(hou)度時，由(you)(you)于產生(sheng)(sheng)靜電(dian)(dian)(dian)排斥作(zuo)用，便不繼續吸附，從(cong)而(er)使(shi)整個工件獲得一定厚(hou)度的(de)(de)粉(fen)末(mo)(mo)涂(tu)(tu)層，然后經過熱使(shi)粉(fen)末(mo)(mo)熔融、流平(ping)、固化，即在(zai)(zai)工件表(biao)面形(xing)成堅硬的(de)(de)涂(tu)(tu)膜。