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)對(dui)環境對(dui)人體無毒害；涂(tu)層(ceng)外觀質量優異，附著力(li)及機械強度強；噴(pen)涂(tu)施(shi)工(gong)(gong)(gong)固化(hua)時間短；涂(tu)層(ceng)耐(nai)腐耐(nai)磨能力(li)高出很多(duo)；不(bu)需底(di)漆；施(shi)工(gong)(gong)(gong)簡便，對(dui)工(gong)(gong)(gong)人技(ji)術要求低；成(cheng)本低于噴(pen)漆工(gong)(gong)(gong)藝(yi)；有(you)些施(shi)工(gong)(gong)(gong)場合已(yi)經(jing)明(ming)確(que)提出使用靜電(dian)噴(pen)塑工(gong)(gong)(gong)藝(yi)處理；靜電(dian)噴(pen)粉(fen)噴(pen)涂(tu)過程(cheng)中不(bu)會出現噴(pen)漆工(gong)(gong)(gong)藝(yi)中常見的流(liu)淌現象。

是利(li)用(yong)電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)現(xian)象使粉(fen)末(mo)涂(tu)(tu)料(liao)(liao)吸(xi)附在(zai)電(dian)(dian)(dian)(dian)纜(lan)橋(qiao)架上(shang)的(de)(de)。其(qi)過程是這樣的(de)(de)：粉(fen)末(mo)涂(tu)(tu)料(liao)(liao)由(you)(you)供粉(fen)系統借(jie)壓縮空(kong)氣氣體送入(ru)噴(pen)(pen)槍(qiang)(qiang)，在(zai)噴(pen)(pen)槍(qiang)(qiang)前端加有高壓靜(jing)(jing)電(dian)(dian)(dian)(dian)發生(sheng)器產(chan)(chan)生(sheng)的(de)(de)高壓，由(you)(you)于(yu)電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)，在(zai)其(qi)附近產(chan)(chan)生(sheng)密集的(de)(de)電(dian)(dian)(dian)(dian)荷(he)，粉(fen)末(mo)由(you)(you)槍(qiang)(qiang)嘴噴(pen)(pen)出時(shi)，形成(cheng)(cheng)帶電(dian)(dian)(dian)(dian)涂(tu)(tu)料(liao)(liao)粒子，它受靜(jing)(jing)電(dian)(dian)(dian)(dian)力的(de)(de)作(zuo)用(yong)，被吸(xi)到(dao)與其(qi)相(xiang)反的(de)(de)工(gong)件(jian)上(shang)去，隨著噴(pen)(pen)上(shang)的(de)(de)粉(fen)末(mo)增多(duo)，電(dian)(dian)(dian)(dian)荷(he)積聚也越多(duo)，當達到(dao)一(yi)定厚度(du)時(shi)，由(you)(you)于(yu)產(chan)(chan)生(sheng)靜(jing)(jing)電(dian)(dian)(dian)(dian)排(pai)斥作(zuo)用(yong)，便不繼續吸(xi)附，從而使整個工(gong)件(jian)獲(huo)得(de)一(yi)定厚度(du)的(de)(de)粉(fen)末(mo)涂(tu)(tu)層，然后經過熱使粉(fen)末(mo)熔融、流(liu)平、固(gu)化(hua)，即在(zai)工(gong)件(jian)表面形成(cheng)(cheng)堅硬的(de)(de)涂(tu)(tu)膜(mo)。