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，施工(gong)(gong)對(dui)(dui)環境對(dui)(dui)人體無毒害(hai)；涂(tu)(tu)層外觀質量優異，附著力及機械強度(du)強；噴(pen)(pen)(pen)涂(tu)(tu)施工(gong)(gong)固化時間短(duan)；涂(tu)(tu)層耐腐耐磨能力高出很多；不需(xu)底漆(qi)(qi)(qi)；施工(gong)(gong)簡(jian)便，對(dui)(dui)工(gong)(gong)人技術要求低；成(cheng)本(ben)低于噴(pen)(pen)(pen)漆(qi)(qi)(qi)工(gong)(gong)藝(yi)；有些施工(gong)(gong)場合已經明確提出使(shi)用靜電(dian)(dian)噴(pen)(pen)(pen)塑工(gong)(gong)藝(yi)處理；靜電(dian)(dian)噴(pen)(pen)(pen)粉噴(pen)(pen)(pen)涂(tu)(tu)過程中(zhong)不會出現(xian)噴(pen)(pen)(pen)漆(qi)(qi)(qi)工(gong)(gong)藝(yi)中(zhong)常見的流淌現(xian)象。

是利(li)用電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)現象使(shi)粉(fen)(fen)末涂(tu)(tu)料吸附在(zai)電(dian)(dian)(dian)(dian)纜(lan)橋架上(shang)的(de)(de)。其(qi)(qi)過程是這樣的(de)(de)：粉(fen)(fen)末涂(tu)(tu)料由供粉(fen)(fen)系(xi)統(tong)借壓縮空(kong)氣氣體送入噴槍，在(zai)噴槍前端加有高壓靜電(dian)(dian)(dian)(dian)發生器產生的(de)(de)高壓，由于電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)，在(zai)其(qi)(qi)附近產生密集的(de)(de)電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末由槍嘴噴出時(shi)，形(xing)成(cheng)帶(dai)電(dian)(dian)(dian)(dian)涂(tu)(tu)料粒子，它受靜電(dian)(dian)(dian)(dian)力(li)的(de)(de)作用，被吸到與其(qi)(qi)相反的(de)(de)工(gong)(gong)(gong)件(jian)上(shang)去，隨著噴上(shang)的(de)(de)粉(fen)(fen)末增多(duo)，電(dian)(dian)(dian)(dian)荷積聚也越(yue)多(duo)，當達到一(yi)定厚(hou)度(du)(du)時(shi)，由于產生靜電(dian)(dian)(dian)(dian)排(pai)斥作用，便不繼(ji)續(xu)吸附，從而(er)使(shi)整(zheng)個工(gong)(gong)(gong)件(jian)獲得一(yi)定厚(hou)度(du)(du)的(de)(de)粉(fen)(fen)末涂(tu)(tu)層(ceng)，然(ran)后經過熱使(shi)粉(fen)(fen)末熔融、流平、固化，即在(zai)工(gong)(gong)(gong)件(jian)表面(mian)形(xing)成(cheng)堅硬的(de)(de)涂(tu)(tu)膜。