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(shi)(shi)工(gong)(gong)(gong)對(dui)環境對(dui)人(ren)體無毒害；涂(tu)層(ceng)外觀(guan)質量(liang)優異，附(fu)著(zhu)力及機械強度(du)強；噴(pen)涂(tu)施(shi)(shi)工(gong)(gong)(gong)固化時間(jian)短；涂(tu)層(ceng)耐(nai)腐耐(nai)磨能力高(gao)出(chu)很(hen)多(duo)；不(bu)需底漆(qi)；施(shi)(shi)工(gong)(gong)(gong)簡便，對(dui)工(gong)(gong)(gong)人(ren)技(ji)術(shu)要求(qiu)低；成本低于(yu)噴(pen)漆(qi)工(gong)(gong)(gong)藝(yi)；有些施(shi)(shi)工(gong)(gong)(gong)場合已經明確(que)提出(chu)使用靜電噴(pen)塑工(gong)(gong)(gong)藝(yi)處理；靜電噴(pen)粉噴(pen)涂(tu)過程中不(bu)會出(chu)現噴(pen)漆(qi)工(gong)(gong)(gong)藝(yi)中常(chang)見的(de)流淌(tang)現象。

是(shi)利用(yong)電(dian)(dian)暈(yun)放電(dian)(dian)現象使粉(fen)(fen)末涂(tu)料(liao)吸(xi)附(fu)在(zai)(zai)電(dian)(dian)纜橋架上的(de)。其(qi)過程是(shi)這(zhe)樣的(de)：粉(fen)(fen)末涂(tu)料(liao)由供粉(fen)(fen)系統借壓(ya)(ya)縮空氣氣體送入(ru)噴槍，在(zai)(zai)噴槍前端加有(you)高壓(ya)(ya)靜(jing)(jing)(jing)電(dian)(dian)發生(sheng)器產生(sheng)的(de)高壓(ya)(ya)，由于電(dian)(dian)暈(yun)放電(dian)(dian)，在(zai)(zai)其(qi)附(fu)近產生(sheng)密(mi)集(ji)的(de)電(dian)(dian)荷，粉(fen)(fen)末由槍嘴噴出時(shi)，形成帶電(dian)(dian)涂(tu)料(liao)粒(li)子，它受靜(jing)(jing)(jing)電(dian)(dian)力的(de)作用(yong)，被吸(xi)到(dao)與(yu)其(qi)相反的(de)工(gong)件上去，隨著(zhu)噴上的(de)粉(fen)(fen)末增(zeng)多(duo)，電(dian)(dian)荷積聚也越(yue)多(duo)，當達到(dao)一(yi)定厚度(du)時(shi)，由于產生(sheng)靜(jing)(jing)(jing)電(dian)(dian)排斥作用(yong)，便不繼續吸(xi)附(fu)，從而使整個工(gong)件獲(huo)得一(yi)定厚度(du)的(de)粉(fen)(fen)末涂(tu)層，然后經過熱使粉(fen)(fen)末熔融、流平、固化(hua)，即在(zai)(zai)工(gong)件表面形成堅硬的(de)涂(tu)膜(mo)。