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(xu)稀料，施(shi)工(gong)對(dui)(dui)環境對(dui)(dui)人體(ti)無毒(du)害；涂(tu)層外觀(guan)質(zhi)量優異，附著(zhu)力及機械強度強；噴(pen)(pen)(pen)涂(tu)施(shi)工(gong)固化(hua)時間(jian)短；涂(tu)層耐腐(fu)耐磨能力高出(chu)很多；不(bu)需(xu)底漆；施(shi)工(gong)簡便，對(dui)(dui)工(gong)人技術要(yao)求低；成(cheng)本(ben)低于噴(pen)(pen)(pen)漆工(gong)藝；有些施(shi)工(gong)場(chang)合已經明確(que)提出(chu)使(shi)用靜電(dian)噴(pen)(pen)(pen)塑工(gong)藝處理；靜電(dian)噴(pen)(pen)(pen)粉噴(pen)(pen)(pen)涂(tu)過程中不(bu)會出(chu)現噴(pen)(pen)(pen)漆工(gong)藝中常見(jian)的流淌(tang)現象。

是(shi)利用電(dian)(dian)暈(yun)放(fang)電(dian)(dian)現象(xiang)使粉(fen)(fen)(fen)末(mo)(mo)(mo)涂(tu)(tu)(tu)料(liao)吸(xi)附在電(dian)(dian)纜橋架上(shang)的(de)(de)(de)。其過(guo)程(cheng)是(shi)這樣(yang)的(de)(de)(de)：粉(fen)(fen)(fen)末(mo)(mo)(mo)涂(tu)(tu)(tu)料(liao)由(you)(you)供粉(fen)(fen)(fen)系(xi)統借壓(ya)縮(suo)空(kong)氣氣體送(song)入噴(pen)槍，在噴(pen)槍前端加(jia)有高壓(ya)靜電(dian)(dian)發生(sheng)器產(chan)生(sheng)的(de)(de)(de)高壓(ya)，由(you)(you)于(yu)(yu)電(dian)(dian)暈(yun)放(fang)電(dian)(dian)，在其附近(jin)產(chan)生(sheng)密(mi)集的(de)(de)(de)電(dian)(dian)荷(he)，粉(fen)(fen)(fen)末(mo)(mo)(mo)由(you)(you)槍嘴噴(pen)出時，形(xing)成帶電(dian)(dian)涂(tu)(tu)(tu)料(liao)粒子，它受靜電(dian)(dian)力的(de)(de)(de)作(zuo)用，被吸(xi)到與(yu)其相(xiang)反(fan)的(de)(de)(de)工件上(shang)去(qu)，隨(sui)著噴(pen)上(shang)的(de)(de)(de)粉(fen)(fen)(fen)末(mo)(mo)(mo)增多，電(dian)(dian)荷(he)積聚也越(yue)多，當達到一定(ding)厚(hou)度(du)(du)時，由(you)(you)于(yu)(yu)產(chan)生(sheng)靜電(dian)(dian)排(pai)斥作(zuo)用，便不繼(ji)續吸(xi)附，從而使整(zheng)個工件獲得一定(ding)厚(hou)度(du)(du)的(de)(de)(de)粉(fen)(fen)(fen)末(mo)(mo)(mo)涂(tu)(tu)(tu)層，然(ran)后經過(guo)熱使粉(fen)(fen)(fen)末(mo)(mo)(mo)熔融、流平、固化，即(ji)在工件表面形(xing)成堅(jian)硬的(de)(de)(de)涂(tu)(tu)(tu)膜。