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(xi)料，施(shi)工(gong)(gong)(gong)(gong)對環境對人體無毒(du)害；涂(tu)層(ceng)外觀質量優異，附著(zhu)力及機(ji)械強(qiang)度強(qiang)；噴涂(tu)施(shi)工(gong)(gong)(gong)(gong)固化(hua)時間短；涂(tu)層(ceng)耐(nai)腐耐(nai)磨能(neng)力高出(chu)很多；不(bu)需底漆；施(shi)工(gong)(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)(gong)人技術(shu)要求(qiu)低；成本(ben)低于噴漆工(gong)(gong)(gong)(gong)藝；有些施(shi)工(gong)(gong)(gong)(gong)場合(he)已經明確提出(chu)使(shi)用靜(jing)電噴塑工(gong)(gong)(gong)(gong)藝處理；靜(jing)電噴粉噴涂(tu)過程中不(bu)會出(chu)現(xian)噴漆工(gong)(gong)(gong)(gong)藝中常見的(de)流(liu)淌現(xian)象。

是利用(yong)電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)現象使(shi)粉(fen)末(mo)(mo)涂(tu)(tu)料吸(xi)附(fu)在電(dian)(dian)(dian)(dian)纜橋架(jia)上(shang)的(de)(de)。其(qi)過(guo)程是這樣(yang)的(de)(de)：粉(fen)末(mo)(mo)涂(tu)(tu)料由供粉(fen)系統借壓(ya)縮空氣氣體送(song)入噴槍，在噴槍前端加有高(gao)(gao)壓(ya)靜(jing)電(dian)(dian)(dian)(dian)發生(sheng)器(qi)產生(sheng)的(de)(de)高(gao)(gao)壓(ya)，由于電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)，在其(qi)附(fu)近產生(sheng)密(mi)集的(de)(de)電(dian)(dian)(dian)(dian)荷(he)，粉(fen)末(mo)(mo)由槍嘴噴出時，形成(cheng)(cheng)帶電(dian)(dian)(dian)(dian)涂(tu)(tu)料粒子，它受靜(jing)電(dian)(dian)(dian)(dian)力(li)的(de)(de)作用(yong)，被吸(xi)到(dao)與其(qi)相反的(de)(de)工(gong)件(jian)上(shang)去(qu)，隨著噴上(shang)的(de)(de)粉(fen)末(mo)(mo)增多，電(dian)(dian)(dian)(dian)荷(he)積聚也越多，當達到(dao)一定厚度時，由于產生(sheng)靜(jing)電(dian)(dian)(dian)(dian)排斥作用(yong)，便(bian)不繼(ji)續吸(xi)附(fu)，從(cong)而使(shi)整個工(gong)件(jian)獲得(de)一定厚度的(de)(de)粉(fen)末(mo)(mo)涂(tu)(tu)層(ceng)，然后經過(guo)熱使(shi)粉(fen)末(mo)(mo)熔(rong)融、流平、固(gu)化，即(ji)在工(gong)件(jian)表面形成(cheng)(cheng)堅(jian)硬的(de)(de)涂(tu)(tu)膜。