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)(bu)需稀(xi)料，施(shi)工(gong)(gong)(gong)對環境對人體無毒害；涂層(ceng)(ceng)外觀(guan)質量優異，附著力及機械強度強；噴(pen)涂施(shi)工(gong)(gong)(gong)固化時間短；涂層(ceng)(ceng)耐(nai)腐耐(nai)磨(mo)能(neng)力高(gao)出(chu)很多；不(bu)(bu)需底(di)漆(qi)；施(shi)工(gong)(gong)(gong)簡便，對工(gong)(gong)(gong)人技術要(yao)求低(di)(di)；成本(ben)低(di)(di)于噴(pen)漆(qi)工(gong)(gong)(gong)藝；有些(xie)施(shi)工(gong)(gong)(gong)場合已(yi)經明確提出(chu)使用靜電(dian)噴(pen)塑工(gong)(gong)(gong)藝處理；靜電(dian)噴(pen)粉噴(pen)涂過程中(zhong)不(bu)(bu)會出(chu)現噴(pen)漆(qi)工(gong)(gong)(gong)藝中(zhong)常見的流淌現象。

是利(li)用(yong)(yong)電(dian)(dian)暈(yun)放電(dian)(dian)現象使粉(fen)(fen)末(mo)(mo)涂(tu)(tu)料(liao)吸(xi)(xi)附在(zai)電(dian)(dian)纜橋架(jia)上(shang)的(de)(de)(de)。其過(guo)程(cheng)是這樣的(de)(de)(de)：粉(fen)(fen)末(mo)(mo)涂(tu)(tu)料(liao)由(you)(you)供粉(fen)(fen)系統借壓(ya)縮空氣氣體送入噴(pen)槍(qiang)，在(zai)噴(pen)槍(qiang)前端加有高壓(ya)靜電(dian)(dian)發生器產生的(de)(de)(de)高壓(ya)，由(you)(you)于電(dian)(dian)暈(yun)放電(dian)(dian)，在(zai)其附近產生密集的(de)(de)(de)電(dian)(dian)荷，粉(fen)(fen)末(mo)(mo)由(you)(you)槍(qiang)嘴噴(pen)出時，形(xing)(xing)成(cheng)(cheng)帶電(dian)(dian)涂(tu)(tu)料(liao)粒子，它受(shou)靜電(dian)(dian)力的(de)(de)(de)作用(yong)(yong)，被吸(xi)(xi)到與其相(xiang)反的(de)(de)(de)工(gong)件上(shang)去，隨著噴(pen)上(shang)的(de)(de)(de)粉(fen)(fen)末(mo)(mo)增多(duo)，電(dian)(dian)荷積聚也越多(duo)，當達到一定(ding)厚(hou)(hou)度時，由(you)(you)于產生靜電(dian)(dian)排斥(chi)作用(yong)(yong)，便不繼(ji)續吸(xi)(xi)附，從(cong)而(er)使整個(ge)工(gong)件獲得一定(ding)厚(hou)(hou)度的(de)(de)(de)粉(fen)(fen)末(mo)(mo)涂(tu)(tu)層，然后經過(guo)熱使粉(fen)(fen)末(mo)(mo)熔融、流平、固(gu)化(hua)，即在(zai)工(gong)件表面(mian)形(xing)(xing)成(cheng)(cheng)堅硬的(de)(de)(de)涂(tu)(tu)膜。