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(liao)，施工(gong)(gong)(gong)(gong)對環境(jing)對人體無毒害；涂層外觀(guan)質量優(you)異(yi)，附著力(li)及機(ji)械強(qiang)度強(qiang)；噴涂施工(gong)(gong)(gong)(gong)固化時(shi)間短；涂層耐(nai)腐耐(nai)磨能力(li)高出很多；不(bu)需底漆；施工(gong)(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)(gong)人技術要求低(di)；成本低(di)于噴漆工(gong)(gong)(gong)(gong)藝；有些施工(gong)(gong)(gong)(gong)場合(he)已經明確提出使(shi)用靜電(dian)噴塑工(gong)(gong)(gong)(gong)藝處理；靜電(dian)噴粉噴涂過程(cheng)中不(bu)會出現噴漆工(gong)(gong)(gong)(gong)藝中常見(jian)的流淌現象(xiang)。

是利用(yong)電(dian)(dian)(dian)(dian)暈(yun)放(fang)(fang)電(dian)(dian)(dian)(dian)現象使(shi)粉(fen)(fen)末涂(tu)(tu)料吸附(fu)(fu)在(zai)電(dian)(dian)(dian)(dian)纜橋架(jia)上(shang)(shang)的(de)(de)。其過程是這樣的(de)(de)：粉(fen)(fen)末涂(tu)(tu)料由(you)(you)供(gong)粉(fen)(fen)系統借壓(ya)縮空氣氣體送入噴槍，在(zai)噴槍前端加有高壓(ya)靜(jing)電(dian)(dian)(dian)(dian)發生器產(chan)生的(de)(de)高壓(ya)，由(you)(you)于(yu)(yu)電(dian)(dian)(dian)(dian)暈(yun)放(fang)(fang)電(dian)(dian)(dian)(dian)，在(zai)其附(fu)(fu)近產(chan)生密集的(de)(de)電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末由(you)(you)槍嘴(zui)噴出時，形(xing)成(cheng)帶電(dian)(dian)(dian)(dian)涂(tu)(tu)料粒子(zi)，它受(shou)靜(jing)電(dian)(dian)(dian)(dian)力的(de)(de)作用(yong)，被吸到(dao)與其相(xiang)反的(de)(de)工(gong)件上(shang)(shang)去，隨著噴上(shang)(shang)的(de)(de)粉(fen)(fen)末增多，電(dian)(dian)(dian)(dian)荷積聚也越多，當(dang)達到(dao)一定厚度時，由(you)(you)于(yu)(yu)產(chan)生靜(jing)電(dian)(dian)(dian)(dian)排斥作用(yong)，便(bian)不繼續吸附(fu)(fu)，從而(er)使(shi)整個工(gong)件獲得(de)一定厚度的(de)(de)粉(fen)(fen)末涂(tu)(tu)層，然后經過熱使(shi)粉(fen)(fen)末熔融、流平、固化，即在(zai)工(gong)件表面(mian)形(xing)成(cheng)堅硬的(de)(de)涂(tu)(tu)膜。