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，施工(gong)(gong)對環境對人(ren)體(ti)無毒害；涂(tu)層外觀質量優異(yi)，附著力及機械強(qiang)(qiang)度(du)強(qiang)(qiang)；噴(pen)涂(tu)施工(gong)(gong)固化時間短；涂(tu)層耐腐耐磨能(neng)力高出(chu)很多；不(bu)需底漆；施工(gong)(gong)簡便，對工(gong)(gong)人(ren)技(ji)術要求(qiu)低(di)；成本低(di)于噴(pen)漆工(gong)(gong)藝；有些施工(gong)(gong)場(chang)合(he)已經明確提出(chu)使(shi)用靜電噴(pen)塑(su)工(gong)(gong)藝處理(li)；靜電噴(pen)粉噴(pen)涂(tu)過程中不(bu)會出(chu)現(xian)噴(pen)漆工(gong)(gong)藝中常見的(de)流淌現(xian)象。

是利用電(dian)(dian)暈放(fang)電(dian)(dian)現(xian)象使(shi)粉(fen)(fen)末(mo)涂(tu)料吸附(fu)在(zai)電(dian)(dian)纜橋架上(shang)的(de)(de)。其過程(cheng)是這樣的(de)(de)：粉(fen)(fen)末(mo)涂(tu)料由供(gong)粉(fen)(fen)系(xi)統借壓(ya)縮空氣氣體(ti)送入噴槍(qiang)(qiang)，在(zai)噴槍(qiang)(qiang)前端(duan)加有高壓(ya)靜(jing)電(dian)(dian)發生(sheng)(sheng)(sheng)(sheng)器產(chan)生(sheng)(sheng)(sheng)(sheng)的(de)(de)高壓(ya)，由于電(dian)(dian)暈放(fang)電(dian)(dian)，在(zai)其附(fu)近產(chan)生(sheng)(sheng)(sheng)(sheng)密集的(de)(de)電(dian)(dian)荷，粉(fen)(fen)末(mo)由槍(qiang)(qiang)嘴噴出(chu)時，形成帶(dai)電(dian)(dian)涂(tu)料粒子，它受靜(jing)電(dian)(dian)力的(de)(de)作(zuo)用，被吸到與其相反的(de)(de)工件上(shang)去，隨著噴上(shang)的(de)(de)粉(fen)(fen)末(mo)增多，電(dian)(dian)荷積聚也越(yue)多，當(dang)達到一定(ding)厚度(du)時，由于產(chan)生(sheng)(sheng)(sheng)(sheng)靜(jing)電(dian)(dian)排斥作(zuo)用，便不繼(ji)續吸附(fu)，從(cong)而使(shi)整個工件獲得一定(ding)厚度(du)的(de)(de)粉(fen)(fen)末(mo)涂(tu)層，然(ran)后經過熱使(shi)粉(fen)(fen)末(mo)熔融、流平、固化，即在(zai)工件表面形成堅硬的(de)(de)涂(tu)膜(mo)。