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)工(gong)(gong)(gong)(gong)對環境對人體無(wu)毒害；涂層(ceng)外觀質(zhi)量優異(yi)，附(fu)著力及(ji)機械強度強；噴(pen)(pen)涂施(shi)工(gong)(gong)(gong)(gong)固化時間短(duan)；涂層(ceng)耐腐耐磨能力高出很(hen)多；不(bu)需底漆(qi)；施(shi)工(gong)(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)(gong)人技術要求低(di)；成本低(di)于噴(pen)(pen)漆(qi)工(gong)(gong)(gong)(gong)藝；有些施(shi)工(gong)(gong)(gong)(gong)場(chang)合(he)已經明確提出使用靜(jing)電噴(pen)(pen)塑(su)工(gong)(gong)(gong)(gong)藝處理；靜(jing)電噴(pen)(pen)粉(fen)噴(pen)(pen)涂過(guo)程中不(bu)會出現噴(pen)(pen)漆(qi)工(gong)(gong)(gong)(gong)藝中常見的(de)流淌現象。

是(shi)利用電(dian)(dian)暈放(fang)電(dian)(dian)現象使(shi)粉(fen)(fen)(fen)末涂(tu)(tu)料吸(xi)附在(zai)電(dian)(dian)纜橋(qiao)架上(shang)的(de)(de)(de)。其過(guo)程是(shi)這樣的(de)(de)(de)：粉(fen)(fen)(fen)末涂(tu)(tu)料由(you)(you)(you)供(gong)粉(fen)(fen)(fen)系統借壓縮空氣氣體送入噴槍(qiang)，在(zai)噴槍(qiang)前端(duan)加(jia)有高(gao)壓靜電(dian)(dian)發生(sheng)(sheng)器產(chan)生(sheng)(sheng)的(de)(de)(de)高(gao)壓，由(you)(you)(you)于電(dian)(dian)暈放(fang)電(dian)(dian)，在(zai)其附近產(chan)生(sheng)(sheng)密集的(de)(de)(de)電(dian)(dian)荷(he)(he)，粉(fen)(fen)(fen)末由(you)(you)(you)槍(qiang)嘴(zui)噴出時(shi)，形(xing)成(cheng)(cheng)帶電(dian)(dian)涂(tu)(tu)料粒子，它受靜電(dian)(dian)力的(de)(de)(de)作用，被吸(xi)到與其相反的(de)(de)(de)工件上(shang)去，隨著噴上(shang)的(de)(de)(de)粉(fen)(fen)(fen)末增(zeng)多(duo)，電(dian)(dian)荷(he)(he)積聚也(ye)越多(duo)，當達到一定厚度時(shi)，由(you)(you)(you)于產(chan)生(sheng)(sheng)靜電(dian)(dian)排斥作用，便(bian)不繼(ji)續吸(xi)附，從而使(shi)整個工件獲得一定厚度的(de)(de)(de)粉(fen)(fen)(fen)末涂(tu)(tu)層(ceng)，然后經(jing)過(guo)熱使(shi)粉(fen)(fen)(fen)末熔(rong)融(rong)、流平(ping)、固(gu)化，即在(zai)工件表面(mian)形(xing)成(cheng)(cheng)堅硬(ying)的(de)(de)(de)涂(tu)(tu)膜。