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。

不需(xu)稀料，施(shi)工(gong)(gong)(gong)對環境對人體無(wu)毒(du)害(hai)；涂(tu)層外觀質量優(you)異，附著力及機械(xie)強度強；噴(pen)(pen)涂(tu)施(shi)工(gong)(gong)(gong)固(gu)化時間短(duan)；涂(tu)層耐腐耐磨(mo)能力高出(chu)(chu)很(hen)多；不需(xu)底(di)漆；施(shi)工(gong)(gong)(gong)簡(jian)便，對工(gong)(gong)(gong)人技術要求低；成本低于噴(pen)(pen)漆工(gong)(gong)(gong)藝(yi)；有(you)些(xie)施(shi)工(gong)(gong)(gong)場合已(yi)經(jing)明確提出(chu)(chu)使用(yong)靜(jing)電(dian)噴(pen)(pen)塑工(gong)(gong)(gong)藝(yi)處理；靜(jing)電(dian)噴(pen)(pen)粉噴(pen)(pen)涂(tu)過程中不會(hui)出(chu)(chu)現噴(pen)(pen)漆工(gong)(gong)(gong)藝(yi)中常見的流淌現象。

是利用(yong)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)現象(xiang)使粉(fen)(fen)(fen)末涂(tu)(tu)料(liao)吸附(fu)(fu)在電(dian)(dian)(dian)(dian)纜(lan)橋(qiao)架上(shang)的(de)(de)。其過程是這樣的(de)(de)：粉(fen)(fen)(fen)末涂(tu)(tu)料(liao)由供(gong)粉(fen)(fen)(fen)系統借壓(ya)縮空氣氣體送入噴槍，在噴槍前端加有高壓(ya)靜(jing)電(dian)(dian)(dian)(dian)發生(sheng)器產生(sheng)的(de)(de)高壓(ya)，由于電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)，在其附(fu)(fu)近產生(sheng)密(mi)集的(de)(de)電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)(fen)末由槍嘴噴出時(shi)，形(xing)成帶(dai)電(dian)(dian)(dian)(dian)涂(tu)(tu)料(liao)粒子，它受靜(jing)電(dian)(dian)(dian)(dian)力(li)的(de)(de)作用(yong)，被(bei)吸到與(yu)其相反的(de)(de)工(gong)(gong)件上(shang)去，隨著噴上(shang)的(de)(de)粉(fen)(fen)(fen)末增多，電(dian)(dian)(dian)(dian)荷積(ji)聚也越多，當(dang)達到一(yi)定厚度時(shi)，由于產生(sheng)靜(jing)電(dian)(dian)(dian)(dian)排(pai)斥作用(yong)，便不繼續吸附(fu)(fu)，從(cong)而使整個工(gong)(gong)件獲得一(yi)定厚度的(de)(de)粉(fen)(fen)(fen)末涂(tu)(tu)層，然后經(jing)過熱使粉(fen)(fen)(fen)末熔(rong)融、流平、固化(hua)，即(ji)在工(gong)(gong)件表面形(xing)成堅硬(ying)的(de)(de)涂(tu)(tu)膜。