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(liao)，施工(gong)(gong)對環境(jing)對人體無毒(du)害(hai)；涂層(ceng)外觀質量優異，附著(zhu)力及(ji)機(ji)械強度強；噴(pen)涂施工(gong)(gong)固(gu)化時間短；涂層(ceng)耐(nai)腐耐(nai)磨能力高出(chu)很多；不需(xu)底漆；施工(gong)(gong)簡(jian)便(bian)，對工(gong)(gong)人技術要(yao)求低；成本低于噴(pen)漆工(gong)(gong)藝(yi)；有些施工(gong)(gong)場合已經(jing)明確提出(chu)使(shi)用靜電噴(pen)塑工(gong)(gong)藝(yi)處理(li)；靜電噴(pen)粉噴(pen)涂過程中(zhong)不會出(chu)現噴(pen)漆工(gong)(gong)藝(yi)中(zhong)常見的流淌(tang)現象(xiang)。

是利用(yong)電(dian)(dian)(dian)(dian)暈放(fang)(fang)電(dian)(dian)(dian)(dian)現象使粉(fen)(fen)末涂料吸(xi)附(fu)在(zai)電(dian)(dian)(dian)(dian)纜橋架上的。其過程是這(zhe)樣的：粉(fen)(fen)末涂料由供(gong)粉(fen)(fen)系統借壓縮空氣氣體送入噴(pen)(pen)槍(qiang)，在(zai)噴(pen)(pen)槍(qiang)前端加有(you)高(gao)壓靜電(dian)(dian)(dian)(dian)發生器產生的高(gao)壓，由于(yu)電(dian)(dian)(dian)(dian)暈放(fang)(fang)電(dian)(dian)(dian)(dian)，在(zai)其附(fu)近產生密集(ji)的電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末由槍(qiang)嘴噴(pen)(pen)出時，形成帶電(dian)(dian)(dian)(dian)涂料粒子，它受靜電(dian)(dian)(dian)(dian)力的作用(yong)，被吸(xi)到與其相反的工(gong)件上去(qu)，隨著噴(pen)(pen)上的粉(fen)(fen)末增多，電(dian)(dian)(dian)(dian)荷積聚也越多，當(dang)達到一定(ding)厚度時，由于(yu)產生靜電(dian)(dian)(dian)(dian)排斥(chi)作用(yong)，便不繼續吸(xi)附(fu)，從而使整個工(gong)件獲得一定(ding)厚度的粉(fen)(fen)末涂層(ceng)，然后經過熱使粉(fen)(fen)末熔融(rong)、流平、固(gu)化，即在(zai)工(gong)件表面形成堅硬(ying)的涂膜。