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)(xu)稀料，施工(gong)(gong)(gong)對環境(jing)對人體(ti)無毒害(hai)；涂層外觀質量優異，附著力(li)及機械(xie)強(qiang)度強(qiang)；噴(pen)涂施工(gong)(gong)(gong)固化時間短；涂層耐腐(fu)耐磨能(neng)力(li)高出很多；不需(xu)(xu)底(di)漆；施工(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)人技術要求低；成(cheng)本低于(yu)噴(pen)漆工(gong)(gong)(gong)藝(yi)；有些施工(gong)(gong)(gong)場合已經(jing)明確提出使用靜電噴(pen)塑工(gong)(gong)(gong)藝(yi)處理；靜電噴(pen)粉噴(pen)涂過程中(zhong)不會出現噴(pen)漆工(gong)(gong)(gong)藝(yi)中(zhong)常見的流淌(tang)現象。

是利用電(dian)(dian)暈(yun)放電(dian)(dian)現象使粉末(mo)涂(tu)料(liao)吸附(fu)在(zai)電(dian)(dian)纜橋架上(shang)的(de)(de)。其(qi)過程是這(zhe)樣的(de)(de)：粉末(mo)涂(tu)料(liao)由供(gong)粉系統借(jie)壓(ya)縮空氣(qi)氣(qi)體送入噴(pen)槍(qiang)，在(zai)噴(pen)槍(qiang)前端(duan)加有(you)高壓(ya)靜電(dian)(dian)發生(sheng)器產(chan)生(sheng)的(de)(de)高壓(ya)，由于電(dian)(dian)暈(yun)放電(dian)(dian)，在(zai)其(qi)附(fu)近(jin)產(chan)生(sheng)密(mi)集(ji)的(de)(de)電(dian)(dian)荷，粉末(mo)由槍(qiang)嘴噴(pen)出時(shi)，形成(cheng)帶(dai)電(dian)(dian)涂(tu)料(liao)粒(li)子，它(ta)受靜電(dian)(dian)力的(de)(de)作用，被(bei)吸到與其(qi)相反的(de)(de)工(gong)件上(shang)去(qu)，隨著噴(pen)上(shang)的(de)(de)粉末(mo)增多，電(dian)(dian)荷積聚也(ye)越(yue)多，當達到一(yi)定厚度時(shi)，由于產(chan)生(sheng)靜電(dian)(dian)排斥作用，便(bian)不繼續(xu)吸附(fu)，從而(er)使整(zheng)個工(gong)件獲得(de)一(yi)定厚度的(de)(de)粉末(mo)涂(tu)層，然后經過熱使粉末(mo)熔融、流平、固(gu)化，即在(zai)工(gong)件表(biao)面形成(cheng)堅硬的(de)(de)涂(tu)膜。