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(xi)料，施工(gong)(gong)(gong)(gong)對(dui)環境(jing)對(dui)人體(ti)無毒害；涂層外觀質量優異，附著力及機械強度強；噴(pen)(pen)涂施工(gong)(gong)(gong)(gong)固化(hua)時間短；涂層耐腐(fu)耐磨能力高出很多(duo)；不(bu)需底漆；施工(gong)(gong)(gong)(gong)簡(jian)便，對(dui)工(gong)(gong)(gong)(gong)人技(ji)術要求低(di)；成本低(di)于噴(pen)(pen)漆工(gong)(gong)(gong)(gong)藝；有些施工(gong)(gong)(gong)(gong)場合已經(jing)明確(que)提出使用靜(jing)電噴(pen)(pen)塑工(gong)(gong)(gong)(gong)藝處理；靜(jing)電噴(pen)(pen)粉(fen)噴(pen)(pen)涂過程(cheng)中不(bu)會(hui)出現噴(pen)(pen)漆工(gong)(gong)(gong)(gong)藝中常見的流(liu)淌現象。

是利用電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)現象(xiang)使粉末(mo)(mo)涂(tu)料(liao)吸附在(zai)電(dian)(dian)(dian)纜橋架上(shang)的(de)(de)(de)。其(qi)(qi)(qi)過(guo)程是這樣的(de)(de)(de)：粉末(mo)(mo)涂(tu)料(liao)由供粉系統(tong)借壓(ya)縮空氣氣體送入噴(pen)槍，在(zai)噴(pen)槍前端加有高(gao)壓(ya)靜電(dian)(dian)(dian)發生(sheng)(sheng)(sheng)器產(chan)生(sheng)(sheng)(sheng)的(de)(de)(de)高(gao)壓(ya)，由于(yu)(yu)電(dian)(dian)(dian)暈放(fang)電(dian)(dian)(dian)，在(zai)其(qi)(qi)(qi)附近產(chan)生(sheng)(sheng)(sheng)密集的(de)(de)(de)電(dian)(dian)(dian)荷，粉末(mo)(mo)由槍嘴噴(pen)出時，形成帶電(dian)(dian)(dian)涂(tu)料(liao)粒子，它受靜電(dian)(dian)(dian)力(li)的(de)(de)(de)作用，被吸到與其(qi)(qi)(qi)相反的(de)(de)(de)工件(jian)上(shang)去，隨著噴(pen)上(shang)的(de)(de)(de)粉末(mo)(mo)增多，電(dian)(dian)(dian)荷積聚也越多，當達(da)到一定厚度(du)時，由于(yu)(yu)產(chan)生(sheng)(sheng)(sheng)靜電(dian)(dian)(dian)排斥作用，便不繼續(xu)吸附，從(cong)而使整個(ge)工件(jian)獲得一定厚度(du)的(de)(de)(de)粉末(mo)(mo)涂(tu)層，然后經過(guo)熱(re)使粉末(mo)(mo)熔融、流(liu)平、固化，即在(zai)工件(jian)表面形成堅(jian)硬(ying)的(de)(de)(de)涂(tu)膜。