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(xu)稀料，施工(gong)對環境對人體無毒(du)害；涂(tu)(tu)層外觀質量優異，附著力(li)及(ji)機械強(qiang)度強(qiang)；噴(pen)(pen)涂(tu)(tu)施工(gong)固化時(shi)間短；涂(tu)(tu)層耐(nai)腐耐(nai)磨能(neng)力(li)高出很多；不(bu)(bu)需(xu)底漆；施工(gong)簡便，對工(gong)人技術要求低；成本低于噴(pen)(pen)漆工(gong)藝(yi)；有些(xie)施工(gong)場合(he)已經明(ming)確(que)提出使用(yong)靜(jing)電(dian)(dian)噴(pen)(pen)塑工(gong)藝(yi)處(chu)理；靜(jing)電(dian)(dian)噴(pen)(pen)粉噴(pen)(pen)涂(tu)(tu)過程中不(bu)(bu)會出現(xian)噴(pen)(pen)漆工(gong)藝(yi)中常見的流淌現(xian)象。

是利用(yong)電(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)現象(xiang)使粉(fen)末涂(tu)(tu)料(liao)(liao)吸附在(zai)電(dian)(dian)(dian)纜(lan)橋架上的(de)(de)。其過程是這樣的(de)(de)：粉(fen)末涂(tu)(tu)料(liao)(liao)由(you)(you)(you)供粉(fen)系統借壓縮(suo)空氣氣體送入(ru)噴(pen)槍，在(zai)噴(pen)槍前端加有高(gao)壓靜(jing)電(dian)(dian)(dian)發生器產生的(de)(de)高(gao)壓，由(you)(you)(you)于電(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)，在(zai)其附近產生密集的(de)(de)電(dian)(dian)(dian)荷(he)(he)，粉(fen)末由(you)(you)(you)槍嘴噴(pen)出時(shi)，形(xing)成(cheng)(cheng)帶電(dian)(dian)(dian)涂(tu)(tu)料(liao)(liao)粒(li)子，它(ta)受靜(jing)電(dian)(dian)(dian)力的(de)(de)作用(yong)，被吸到與(yu)其相反的(de)(de)工件(jian)(jian)上去，隨著噴(pen)上的(de)(de)粉(fen)末增(zeng)多(duo)，電(dian)(dian)(dian)荷(he)(he)積聚也越多(duo)，當達到一(yi)定(ding)厚(hou)(hou)度時(shi)，由(you)(you)(you)于產生靜(jing)電(dian)(dian)(dian)排斥(chi)作用(yong)，便不繼續吸附，從而使整個工件(jian)(jian)獲得一(yi)定(ding)厚(hou)(hou)度的(de)(de)粉(fen)末涂(tu)(tu)層，然(ran)后經過熱使粉(fen)末熔融、流平、固化，即在(zai)工件(jian)(jian)表(biao)面形(xing)成(cheng)(cheng)堅硬的(de)(de)涂(tu)(tu)膜。