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)(shi)工(gong)(gong)(gong)(gong)對環(huan)境對人體無毒害(hai)；涂層(ceng)外觀質量優異，附著(zhu)力及機械強度強；噴涂施(shi)(shi)工(gong)(gong)(gong)(gong)固化時間短；涂層(ceng)耐腐耐磨能力高(gao)出很多；不(bu)需底漆(qi)；施(shi)(shi)工(gong)(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)(gong)人技術要求(qiu)低；成本低于噴漆(qi)工(gong)(gong)(gong)(gong)藝(yi)；有些施(shi)(shi)工(gong)(gong)(gong)(gong)場合(he)已(yi)經明確提出使用靜電(dian)噴塑工(gong)(gong)(gong)(gong)藝(yi)處理；靜電(dian)噴粉噴涂過程(cheng)中不(bu)會(hui)出現噴漆(qi)工(gong)(gong)(gong)(gong)藝(yi)中常見(jian)的流淌現象。

是(shi)利用電(dian)(dian)(dian)暈放電(dian)(dian)(dian)現象使(shi)粉(fen)(fen)(fen)末(mo)(mo)涂(tu)(tu)(tu)料吸(xi)附在電(dian)(dian)(dian)纜橋架上的(de)。其(qi)過(guo)程是(shi)這樣的(de)：粉(fen)(fen)(fen)末(mo)(mo)涂(tu)(tu)(tu)料由供粉(fen)(fen)(fen)系統借壓(ya)縮空氣(qi)氣(qi)體送入噴槍，在噴槍前端加有(you)高壓(ya)靜電(dian)(dian)(dian)發生(sheng)器(qi)產生(sheng)的(de)高壓(ya)，由于電(dian)(dian)(dian)暈放電(dian)(dian)(dian)，在其(qi)附近產生(sheng)密集(ji)的(de)電(dian)(dian)(dian)荷，粉(fen)(fen)(fen)末(mo)(mo)由槍嘴噴出時，形成帶電(dian)(dian)(dian)涂(tu)(tu)(tu)料粒子，它受靜電(dian)(dian)(dian)力的(de)作用，被吸(xi)到與其(qi)相反的(de)工件(jian)(jian)上去，隨著噴上的(de)粉(fen)(fen)(fen)末(mo)(mo)增多，電(dian)(dian)(dian)荷積聚也越多，當達到一(yi)定厚度時，由于產生(sheng)靜電(dian)(dian)(dian)排斥作用，便不繼(ji)續吸(xi)附，從而使(shi)整個(ge)工件(jian)(jian)獲得一(yi)定厚度的(de)粉(fen)(fen)(fen)末(mo)(mo)涂(tu)(tu)(tu)層(ceng)，然后經(jing)過(guo)熱使(shi)粉(fen)(fen)(fen)末(mo)(mo)熔融、流平、固化，即在工件(jian)(jian)表面形成堅硬的(de)涂(tu)(tu)(tu)膜。