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)(bu)需稀料，施(shi)工(gong)(gong)(gong)(gong)對(dui)環境對(dui)人體無毒害；涂層外觀質量優異，附著力及機械(xie)強(qiang)度(du)強(qiang)；噴(pen)(pen)涂施(shi)工(gong)(gong)(gong)(gong)固化(hua)時間(jian)短；涂層耐(nai)(nai)腐(fu)耐(nai)(nai)磨能力高出很多；不(bu)(bu)需底漆；施(shi)工(gong)(gong)(gong)(gong)簡便(bian)，對(dui)工(gong)(gong)(gong)(gong)人技(ji)術要求低(di)；成本(ben)低(di)于噴(pen)(pen)漆工(gong)(gong)(gong)(gong)藝；有些施(shi)工(gong)(gong)(gong)(gong)場合已經(jing)明確提出使用靜電噴(pen)(pen)塑工(gong)(gong)(gong)(gong)藝處理(li)；靜電噴(pen)(pen)粉噴(pen)(pen)涂過程中不(bu)(bu)會出現噴(pen)(pen)漆工(gong)(gong)(gong)(gong)藝中常(chang)見的流淌現象。

是(shi)利用電(dian)(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)(dian)現象使粉(fen)(fen)末涂(tu)料(liao)吸(xi)附(fu)在(zai)電(dian)(dian)(dian)(dian)(dian)纜橋架(jia)上的(de)(de)。其(qi)過程是(shi)這樣的(de)(de)：粉(fen)(fen)末涂(tu)料(liao)由(you)供(gong)粉(fen)(fen)系(xi)統借(jie)壓(ya)縮空氣氣體送入(ru)噴槍，在(zai)噴槍前端加有高(gao)壓(ya)靜電(dian)(dian)(dian)(dian)(dian)發生(sheng)器產生(sheng)的(de)(de)高(gao)壓(ya)，由(you)于電(dian)(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)(dian)，在(zai)其(qi)附(fu)近產生(sheng)密集的(de)(de)電(dian)(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末由(you)槍嘴(zui)噴出時，形成(cheng)帶電(dian)(dian)(dian)(dian)(dian)涂(tu)料(liao)粒子，它受靜電(dian)(dian)(dian)(dian)(dian)力的(de)(de)作用，被吸(xi)到(dao)與(yu)其(qi)相反的(de)(de)工件(jian)上去，隨著噴上的(de)(de)粉(fen)(fen)末增多，電(dian)(dian)(dian)(dian)(dian)荷積聚也越多，當達到(dao)一定(ding)厚度時，由(you)于產生(sheng)靜電(dian)(dian)(dian)(dian)(dian)排斥作用，便不繼續吸(xi)附(fu)，從而使整(zheng)個工件(jian)獲得一定(ding)厚度的(de)(de)粉(fen)(fen)末涂(tu)層(ceng)，然后經(jing)過熱使粉(fen)(fen)末熔融、流平、固(gu)化，即(ji)在(zai)工件(jian)表面形成(cheng)堅硬的(de)(de)涂(tu)膜。