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(bu)需稀料(liao)，施(shi)(shi)工(gong)(gong)(gong)對環(huan)境對人(ren)體無毒害；涂(tu)(tu)(tu)層(ceng)外(wai)觀(guan)質量(liang)優異(yi)，附(fu)著(zhu)力及(ji)機(ji)械(xie)強度強；噴(pen)(pen)(pen)涂(tu)(tu)(tu)施(shi)(shi)工(gong)(gong)(gong)固化(hua)時間短；涂(tu)(tu)(tu)層(ceng)耐腐耐磨(mo)能力高出很多；不(bu)需底漆(qi)；施(shi)(shi)工(gong)(gong)(gong)簡(jian)便，對工(gong)(gong)(gong)人(ren)技術要求低；成本低于噴(pen)(pen)(pen)漆(qi)工(gong)(gong)(gong)藝；有些施(shi)(shi)工(gong)(gong)(gong)場合已經明確(que)提出使用靜電噴(pen)(pen)(pen)塑工(gong)(gong)(gong)藝處(chu)理(li)；靜電噴(pen)(pen)(pen)粉噴(pen)(pen)(pen)涂(tu)(tu)(tu)過程中不(bu)會(hui)出現噴(pen)(pen)(pen)漆(qi)工(gong)(gong)(gong)藝中常見的流淌(tang)現象。

是(shi)利用電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)現象使(shi)粉(fen)末(mo)涂料吸附(fu)在電(dian)(dian)(dian)纜橋架上的(de)。其過程是(shi)這樣的(de)：粉(fen)末(mo)涂料由(you)供(gong)粉(fen)系(xi)統借壓縮空氣氣體送入噴槍(qiang)，在噴槍(qiang)前(qian)端加有高壓靜電(dian)(dian)(dian)發生(sheng)器產(chan)生(sheng)的(de)高壓，由(you)于電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)，在其附(fu)近產(chan)生(sheng)密集的(de)電(dian)(dian)(dian)荷，粉(fen)末(mo)由(you)槍(qiang)嘴噴出時(shi)，形成帶電(dian)(dian)(dian)涂料粒子，它受靜電(dian)(dian)(dian)力的(de)作用，被(bei)吸到與其相反的(de)工件上去，隨著噴上的(de)粉(fen)末(mo)增(zeng)多(duo)，電(dian)(dian)(dian)荷積聚也越多(duo)，當達到一定厚(hou)度(du)時(shi)，由(you)于產(chan)生(sheng)靜電(dian)(dian)(dian)排斥作用，便(bian)不繼(ji)續吸附(fu)，從而使(shi)整個工件獲得一定厚(hou)度(du)的(de)粉(fen)末(mo)涂層，然(ran)后經過熱使(shi)粉(fen)末(mo)熔融(rong)、流平、固化，即在工件表面形成堅硬(ying)的(de)涂膜(mo)。