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)(shi)工(gong)對(dui)環境對(dui)人體無毒害(hai)；涂(tu)層(ceng)外觀質量優異，附著力及(ji)機械(xie)強(qiang)度強(qiang)；噴(pen)(pen)涂(tu)施(shi)(shi)工(gong)固化時(shi)間(jian)短；涂(tu)層(ceng)耐腐耐磨能力高(gao)出很(hen)多；不(bu)需(xu)底漆；施(shi)(shi)工(gong)簡便，對(dui)工(gong)人技術要求(qiu)低(di)(di)；成本(ben)低(di)(di)于噴(pen)(pen)漆工(gong)藝；有些施(shi)(shi)工(gong)場合已經明確提出使(shi)用(yong)靜電(dian)噴(pen)(pen)塑工(gong)藝處理(li)；靜電(dian)噴(pen)(pen)粉(fen)噴(pen)(pen)涂(tu)過程中不(bu)會(hui)出現(xian)噴(pen)(pen)漆工(gong)藝中常(chang)見的流淌(tang)現(xian)象(xiang)。

是(shi)利用電(dian)(dian)暈放(fang)電(dian)(dian)現象使粉(fen)末(mo)(mo)(mo)涂(tu)(tu)料吸附(fu)在(zai)電(dian)(dian)纜橋架上(shang)的。其過(guo)程是(shi)這樣的：粉(fen)末(mo)(mo)(mo)涂(tu)(tu)料由(you)供(gong)粉(fen)系(xi)統借壓(ya)縮空氣氣體送入噴槍(qiang)，在(zai)噴槍(qiang)前端加有高(gao)壓(ya)靜電(dian)(dian)發(fa)生(sheng)器產生(sheng)的高(gao)壓(ya)，由(you)于電(dian)(dian)暈放(fang)電(dian)(dian)，在(zai)其附(fu)近(jin)產生(sheng)密集的電(dian)(dian)荷，粉(fen)末(mo)(mo)(mo)由(you)槍(qiang)嘴噴出(chu)時，形成(cheng)帶電(dian)(dian)涂(tu)(tu)料粒子，它受靜電(dian)(dian)力的作(zuo)用，被吸到與其相(xiang)反的工(gong)件(jian)上(shang)去，隨著噴上(shang)的粉(fen)末(mo)(mo)(mo)增多，電(dian)(dian)荷積聚也越多，當達到一定厚(hou)度時，由(you)于產生(sheng)靜電(dian)(dian)排斥作(zuo)用，便不繼續吸附(fu)，從而使整(zheng)個工(gong)件(jian)獲得一定厚(hou)度的粉(fen)末(mo)(mo)(mo)涂(tu)(tu)層，然后經過(guo)熱使粉(fen)末(mo)(mo)(mo)熔融(rong)、流平、固(gu)化，即在(zai)工(gong)件(jian)表面形成(cheng)堅硬的涂(tu)(tu)膜。