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(liao)，施(shi)(shi)工(gong)對(dui)環(huan)境對(dui)人(ren)體(ti)無毒害；涂(tu)層(ceng)外(wai)觀質量優異，附著力(li)(li)及機械強度強；噴(pen)(pen)(pen)涂(tu)施(shi)(shi)工(gong)固化時間短；涂(tu)層(ceng)耐(nai)腐耐(nai)磨能力(li)(li)高出很多；不需底漆(qi)；施(shi)(shi)工(gong)簡便，對(dui)工(gong)人(ren)技術要求(qiu)低(di)；成本低(di)于噴(pen)(pen)(pen)漆(qi)工(gong)藝；有些施(shi)(shi)工(gong)場合(he)已(yi)經明確提出使用靜電噴(pen)(pen)(pen)塑(su)工(gong)藝處理；靜電噴(pen)(pen)(pen)粉噴(pen)(pen)(pen)涂(tu)過程中不會出現噴(pen)(pen)(pen)漆(qi)工(gong)藝中常見的(de)流淌現象(xiang)。

是利用電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)現象使(shi)粉(fen)(fen)末(mo)(mo)涂(tu)料(liao)吸附(fu)在電(dian)(dian)(dian)(dian)纜橋架上(shang)的(de)(de)。其過程是這樣的(de)(de)：粉(fen)(fen)末(mo)(mo)涂(tu)料(liao)由(you)(you)供粉(fen)(fen)系統借壓(ya)縮空氣氣體送入噴槍(qiang)，在噴槍(qiang)前(qian)端加有高(gao)壓(ya)靜(jing)電(dian)(dian)(dian)(dian)發生(sheng)器產生(sheng)的(de)(de)高(gao)壓(ya)，由(you)(you)于電(dian)(dian)(dian)(dian)暈(yun)放電(dian)(dian)(dian)(dian)，在其附(fu)近產生(sheng)密集的(de)(de)電(dian)(dian)(dian)(dian)荷，粉(fen)(fen)末(mo)(mo)由(you)(you)槍(qiang)嘴噴出時，形(xing)成帶電(dian)(dian)(dian)(dian)涂(tu)料(liao)粒子(zi)，它受靜(jing)電(dian)(dian)(dian)(dian)力的(de)(de)作用，被吸到與(yu)其相反的(de)(de)工件(jian)上(shang)去，隨著噴上(shang)的(de)(de)粉(fen)(fen)末(mo)(mo)增多(duo)，電(dian)(dian)(dian)(dian)荷積聚(ju)也越多(duo)，當達到一定厚度時，由(you)(you)于產生(sheng)靜(jing)電(dian)(dian)(dian)(dian)排斥(chi)作用，便不繼續吸附(fu)，從而使(shi)整個(ge)工件(jian)獲得一定厚度的(de)(de)粉(fen)(fen)末(mo)(mo)涂(tu)層，然(ran)后經過熱(re)使(shi)粉(fen)(fen)末(mo)(mo)熔融、流平(ping)、固化(hua)，即在工件(jian)表面(mian)形(xing)成堅(jian)硬的(de)(de)涂(tu)膜。