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(xu)稀(xi)料，施(shi)工(gong)對(dui)環境對(dui)人(ren)體無毒害(hai)；涂(tu)層外觀質量優異(yi)，附著(zhu)力(li)及機械強(qiang)度強(qiang)；噴(pen)(pen)涂(tu)施(shi)工(gong)固化時間短；涂(tu)層耐腐耐磨能力(li)高出(chu)(chu)很多；不(bu)需(xu)底漆；施(shi)工(gong)簡便(bian)，對(dui)工(gong)人(ren)技術要求低(di)；成(cheng)本低(di)于噴(pen)(pen)漆工(gong)藝(yi)；有(you)些施(shi)工(gong)場合(he)已(yi)經明確提出(chu)(chu)使用靜(jing)電(dian)噴(pen)(pen)塑(su)工(gong)藝(yi)處理；靜(jing)電(dian)噴(pen)(pen)粉噴(pen)(pen)涂(tu)過(guo)程中不(bu)會出(chu)(chu)現噴(pen)(pen)漆工(gong)藝(yi)中常(chang)見的流淌現象。

是(shi)利用(yong)電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)放電(dian)(dian)(dian)(dian)(dian)現象使粉(fen)(fen)末涂(tu)(tu)料吸(xi)附在電(dian)(dian)(dian)(dian)(dian)纜(lan)橋架上(shang)的(de)(de)(de)。其(qi)過程是(shi)這樣的(de)(de)(de)：粉(fen)(fen)末涂(tu)(tu)料由供粉(fen)(fen)系統借壓縮空氣氣體送(song)入噴槍(qiang)，在噴槍(qiang)前端(duan)加有高(gao)(gao)壓靜電(dian)(dian)(dian)(dian)(dian)發生器(qi)產生的(de)(de)(de)高(gao)(gao)壓，由于電(dian)(dian)(dian)(dian)(dian)暈(yun)(yun)放電(dian)(dian)(dian)(dian)(dian)，在其(qi)附近(jin)產生密集的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末由槍(qiang)嘴(zui)噴出(chu)時(shi)，形成(cheng)帶(dai)電(dian)(dian)(dian)(dian)(dian)涂(tu)(tu)料粒(li)子，它受靜電(dian)(dian)(dian)(dian)(dian)力的(de)(de)(de)作(zuo)用(yong)，被吸(xi)到(dao)與其(qi)相(xiang)反的(de)(de)(de)工(gong)件上(shang)去，隨著噴上(shang)的(de)(de)(de)粉(fen)(fen)末增(zeng)多，電(dian)(dian)(dian)(dian)(dian)荷積聚也越(yue)多，當達到(dao)一(yi)定厚(hou)度時(shi)，由于產生靜電(dian)(dian)(dian)(dian)(dian)排斥作(zuo)用(yong)，便不繼續吸(xi)附，從而使整個工(gong)件獲得一(yi)定厚(hou)度的(de)(de)(de)粉(fen)(fen)末涂(tu)(tu)層，然后(hou)經過熱使粉(fen)(fen)末熔融、流(liu)平、固(gu)化，即在工(gong)件表面形成(cheng)堅硬的(de)(de)(de)涂(tu)(tu)膜。