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，施工(gong)(gong)(gong)對(dui)環境對(dui)人體無毒害；涂層外觀質量優異，附(fu)著力及機械強度(du)強；噴(pen)(pen)涂施工(gong)(gong)(gong)固化時間短(duan)；涂層耐(nai)腐耐(nai)磨能力高出很多；不(bu)需底漆；施工(gong)(gong)(gong)簡便，對(dui)工(gong)(gong)(gong)人技術要求低；成本低于噴(pen)(pen)漆工(gong)(gong)(gong)藝；有些施工(gong)(gong)(gong)場合已經明確提出使用靜電(dian)噴(pen)(pen)塑(su)工(gong)(gong)(gong)藝處理(li)；靜電(dian)噴(pen)(pen)粉噴(pen)(pen)涂過(guo)程(cheng)中(zhong)不(bu)會出現噴(pen)(pen)漆工(gong)(gong)(gong)藝中(zhong)常(chang)見的流淌(tang)現象。

是利(li)用(yong)電(dian)(dian)暈放電(dian)(dian)現(xian)象使粉(fen)末(mo)涂(tu)料吸附在(zai)(zai)電(dian)(dian)纜橋架上(shang)的(de)。其過(guo)程是這樣的(de)：粉(fen)末(mo)涂(tu)料由(you)供粉(fen)系(xi)統借壓縮空氣氣體送入(ru)噴槍，在(zai)(zai)噴槍前端(duan)加(jia)有高(gao)壓靜(jing)電(dian)(dian)發生器產生的(de)高(gao)壓，由(you)于電(dian)(dian)暈放電(dian)(dian)，在(zai)(zai)其附近產生密集(ji)的(de)電(dian)(dian)荷，粉(fen)末(mo)由(you)槍嘴噴出(chu)時(shi)，形成(cheng)帶電(dian)(dian)涂(tu)料粒子，它受靜(jing)電(dian)(dian)力(li)的(de)作用(yong)，被吸到(dao)(dao)與(yu)其相(xiang)反(fan)的(de)工(gong)件(jian)上(shang)去(qu)，隨著(zhu)噴上(shang)的(de)粉(fen)末(mo)增多(duo)，電(dian)(dian)荷積聚也越多(duo)，當達到(dao)(dao)一定厚度時(shi)，由(you)于產生靜(jing)電(dian)(dian)排斥作用(yong)，便不繼續吸附，從而使整(zheng)個工(gong)件(jian)獲得一定厚度的(de)粉(fen)末(mo)涂(tu)層，然后經過(guo)熱使粉(fen)末(mo)熔(rong)融、流平(ping)、固化(hua)，即在(zai)(zai)工(gong)件(jian)表面形成(cheng)堅硬的(de)涂(tu)膜。