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(xi)料，施(shi)工對環(huan)境對人體無毒害(hai)；涂層外(wai)觀質量(liang)優異，附著力及機(ji)械強度強；噴(pen)(pen)涂施(shi)工固化時(shi)間(jian)短；涂層耐腐耐磨能(neng)力高出(chu)很(hen)多；不需底漆；施(shi)工簡便(bian)，對工人技(ji)術要(yao)求低(di)；成(cheng)本低(di)于噴(pen)(pen)漆工藝(yi)；有(you)些施(shi)工場合已(yi)經明確提出(chu)使用靜電噴(pen)(pen)塑工藝(yi)處理；靜電噴(pen)(pen)粉噴(pen)(pen)涂過程中(zhong)不會(hui)出(chu)現噴(pen)(pen)漆工藝(yi)中(zhong)常見的流淌現象。

是(shi)利用電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)現(xian)象使(shi)(shi)粉(fen)(fen)(fen)(fen)末(mo)(mo)涂(tu)料(liao)吸附在電(dian)(dian)(dian)纜橋架上(shang)的。其(qi)過(guo)程是(shi)這樣的：粉(fen)(fen)(fen)(fen)末(mo)(mo)涂(tu)料(liao)由(you)供(gong)粉(fen)(fen)(fen)(fen)系統借壓(ya)縮空氣氣體送入噴(pen)槍，在噴(pen)槍前(qian)端加有高壓(ya)靜電(dian)(dian)(dian)發(fa)生器產(chan)生的高壓(ya)，由(you)于電(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)，在其(qi)附近產(chan)生密集的電(dian)(dian)(dian)荷(he)，粉(fen)(fen)(fen)(fen)末(mo)(mo)由(you)槍嘴噴(pen)出(chu)時(shi)，形成帶(dai)電(dian)(dian)(dian)涂(tu)料(liao)粒子，它受靜電(dian)(dian)(dian)力的作用，被(bei)吸到與其(qi)相反的工(gong)件(jian)(jian)上(shang)去，隨(sui)著噴(pen)上(shang)的粉(fen)(fen)(fen)(fen)末(mo)(mo)增多(duo)，電(dian)(dian)(dian)荷(he)積聚也越多(duo)，當達(da)到一定(ding)(ding)厚度時(shi)，由(you)于產(chan)生靜電(dian)(dian)(dian)排斥作用，便不繼續吸附，從而使(shi)(shi)整(zheng)個工(gong)件(jian)(jian)獲(huo)得(de)一定(ding)(ding)厚度的粉(fen)(fen)(fen)(fen)末(mo)(mo)涂(tu)層，然(ran)后經(jing)過(guo)熱使(shi)(shi)粉(fen)(fen)(fen)(fen)末(mo)(mo)熔融(rong)、流平、固化，即在工(gong)件(jian)(jian)表面形成堅硬(ying)的涂(tu)膜。