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。

不需稀料，施工(gong)(gong)對(dui)環境(jing)對(dui)人(ren)體(ti)無毒害(hai)；涂(tu)層外觀質量優異(yi)，附著力(li)及(ji)機械強(qiang)度強(qiang)；噴涂(tu)施工(gong)(gong)固化時間短；涂(tu)層耐腐耐磨(mo)能力(li)高出(chu)(chu)很多；不需底漆；施工(gong)(gong)簡便(bian)，對(dui)工(gong)(gong)人(ren)技(ji)術要求低(di)；成(cheng)本低(di)于噴漆工(gong)(gong)藝(yi)；有些施工(gong)(gong)場合已(yi)經(jing)明(ming)確提出(chu)(chu)使(shi)用靜(jing)電噴塑工(gong)(gong)藝(yi)處(chu)理；靜(jing)電噴粉噴涂(tu)過程中不會出(chu)(chu)現噴漆工(gong)(gong)藝(yi)中常見的流淌(tang)現象。

是(shi)利用電(dian)(dian)暈放電(dian)(dian)現(xian)象使(shi)(shi)粉(fen)(fen)(fen)(fen)末涂料吸(xi)附在(zai)電(dian)(dian)纜橋(qiao)架上(shang)的(de)(de)(de)(de)。其過程是(shi)這樣(yang)的(de)(de)(de)(de)：粉(fen)(fen)(fen)(fen)末涂料由供(gong)粉(fen)(fen)(fen)(fen)系統借壓縮(suo)空氣(qi)氣(qi)體送入噴槍，在(zai)噴槍前端加(jia)有(you)高壓靜(jing)電(dian)(dian)發(fa)生(sheng)器產生(sheng)的(de)(de)(de)(de)高壓，由于電(dian)(dian)暈放電(dian)(dian)，在(zai)其附近(jin)產生(sheng)密集的(de)(de)(de)(de)電(dian)(dian)荷，粉(fen)(fen)(fen)(fen)末由槍嘴噴出時，形成(cheng)帶電(dian)(dian)涂料粒子(zi)，它受靜(jing)電(dian)(dian)力(li)的(de)(de)(de)(de)作用，被吸(xi)到與其相(xiang)反(fan)的(de)(de)(de)(de)工(gong)件(jian)(jian)上(shang)去，隨著噴上(shang)的(de)(de)(de)(de)粉(fen)(fen)(fen)(fen)末增多(duo)，電(dian)(dian)荷積聚也越多(duo)，當達到一定(ding)厚(hou)度(du)時，由于產生(sheng)靜(jing)電(dian)(dian)排(pai)斥(chi)作用，便不繼續吸(xi)附，從而使(shi)(shi)整個工(gong)件(jian)(jian)獲得一定(ding)厚(hou)度(du)的(de)(de)(de)(de)粉(fen)(fen)(fen)(fen)末涂層，然后(hou)經過熱使(shi)(shi)粉(fen)(fen)(fen)(fen)末熔融、流平、固(gu)化，即在(zai)工(gong)件(jian)(jian)表(biao)面形成(cheng)堅硬的(de)(de)(de)(de)涂膜。