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)(xu)稀料，施(shi)(shi)(shi)工(gong)(gong)(gong)對(dui)(dui)環境對(dui)(dui)人體無毒害；涂(tu)(tu)層外觀質量優異，附著(zhu)力(li)及機械強度強；噴涂(tu)(tu)施(shi)(shi)(shi)工(gong)(gong)(gong)固化時間(jian)短；涂(tu)(tu)層耐腐耐磨能力(li)高出(chu)(chu)很(hen)多；不需(xu)(xu)底漆；施(shi)(shi)(shi)工(gong)(gong)(gong)簡便，對(dui)(dui)工(gong)(gong)(gong)人技術要求低；成(cheng)本低于噴漆工(gong)(gong)(gong)藝；有(you)些施(shi)(shi)(shi)工(gong)(gong)(gong)場合已經明確(que)提出(chu)(chu)使用靜(jing)電噴塑(su)工(gong)(gong)(gong)藝處理；靜(jing)電噴粉噴涂(tu)(tu)過(guo)程中不會出(chu)(chu)現噴漆工(gong)(gong)(gong)藝中常見的流淌(tang)現象。

是利用(yong)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)現象使(shi)粉(fen)(fen)末(mo)(mo)涂(tu)料吸附在(zai)電(dian)(dian)(dian)纜橋架(jia)上(shang)(shang)的(de)。其過程是這樣的(de)：粉(fen)(fen)末(mo)(mo)涂(tu)料由供粉(fen)(fen)系統借壓(ya)縮(suo)空氣(qi)氣(qi)體送入(ru)噴(pen)(pen)(pen)槍(qiang)(qiang)，在(zai)噴(pen)(pen)(pen)槍(qiang)(qiang)前(qian)端加(jia)有高壓(ya)靜(jing)電(dian)(dian)(dian)發(fa)生(sheng)器產(chan)生(sheng)的(de)高壓(ya)，由于(yu)(yu)電(dian)(dian)(dian)暈放電(dian)(dian)(dian)，在(zai)其附近產(chan)生(sheng)密集的(de)電(dian)(dian)(dian)荷(he)，粉(fen)(fen)末(mo)(mo)由槍(qiang)(qiang)嘴噴(pen)(pen)(pen)出時，形(xing)成帶電(dian)(dian)(dian)涂(tu)料粒子，它受(shou)靜(jing)電(dian)(dian)(dian)力(li)的(de)作(zuo)用(yong)，被(bei)吸到與其相反(fan)的(de)工件上(shang)(shang)去，隨著噴(pen)(pen)(pen)上(shang)(shang)的(de)粉(fen)(fen)末(mo)(mo)增多(duo)，電(dian)(dian)(dian)荷(he)積聚也越多(duo)，當達到一(yi)定(ding)厚(hou)度(du)時，由于(yu)(yu)產(chan)生(sheng)靜(jing)電(dian)(dian)(dian)排斥作(zuo)用(yong)，便不(bu)繼續吸附，從而(er)使(shi)整個(ge)工件獲得一(yi)定(ding)厚(hou)度(du)的(de)粉(fen)(fen)末(mo)(mo)涂(tu)層，然后(hou)經過熱使(shi)粉(fen)(fen)末(mo)(mo)熔融、流平、固化(hua)，即在(zai)工件表面形(xing)成堅硬的(de)涂(tu)膜(mo)。