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)人體無毒害；涂(tu)層(ceng)外觀質量優異，附著(zhu)力(li)及機械強度強；噴(pen)(pen)涂(tu)施(shi)(shi)工(gong)(gong)(gong)固化時間短；涂(tu)層(ceng)耐腐耐磨能力(li)高出很多；不(bu)需底漆(qi)；施(shi)(shi)工(gong)(gong)(gong)簡便(bian)，對(dui)工(gong)(gong)(gong)人技術要求低；成本低于噴(pen)(pen)漆(qi)工(gong)(gong)(gong)藝(yi)；有些施(shi)(shi)工(gong)(gong)(gong)場合已經(jing)明確提(ti)出使用靜(jing)電(dian)噴(pen)(pen)塑(su)工(gong)(gong)(gong)藝(yi)處(chu)理(li)；靜(jing)電(dian)噴(pen)(pen)粉噴(pen)(pen)涂(tu)過程中不(bu)會出現噴(pen)(pen)漆(qi)工(gong)(gong)(gong)藝(yi)中常見的流淌(tang)現象。

是利用(yong)電(dian)(dian)暈放電(dian)(dian)現象使粉(fen)(fen)(fen)末涂料吸(xi)(xi)附在電(dian)(dian)纜橋架上(shang)的(de)。其過程是這樣的(de)：粉(fen)(fen)(fen)末涂料由供(gong)粉(fen)(fen)(fen)系統(tong)借壓(ya)縮空氣氣體送入噴(pen)槍，在噴(pen)槍前端加有高(gao)(gao)壓(ya)靜(jing)(jing)電(dian)(dian)發生(sheng)器產(chan)生(sheng)的(de)高(gao)(gao)壓(ya)，由于電(dian)(dian)暈放電(dian)(dian)，在其附近產(chan)生(sheng)密(mi)集的(de)電(dian)(dian)荷，粉(fen)(fen)(fen)末由槍嘴噴(pen)出(chu)時，形成(cheng)帶電(dian)(dian)涂料粒子，它(ta)受靜(jing)(jing)電(dian)(dian)力的(de)作(zuo)用(yong)，被(bei)吸(xi)(xi)到(dao)與其相反的(de)工件(jian)上(shang)去(qu)，隨著(zhu)噴(pen)上(shang)的(de)粉(fen)(fen)(fen)末增多(duo)，電(dian)(dian)荷積聚也越多(duo)，當達(da)到(dao)一定厚度時，由于產(chan)生(sheng)靜(jing)(jing)電(dian)(dian)排斥(chi)作(zuo)用(yong)，便(bian)不(bu)繼續吸(xi)(xi)附，從而使整個工件(jian)獲得一定厚度的(de)粉(fen)(fen)(fen)末涂層，然后經(jing)過熱(re)使粉(fen)(fen)(fen)末熔融、流平、固(gu)化，即在工件(jian)表(biao)面(mian)形成(cheng)堅硬(ying)的(de)涂膜。