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(xu)(xu)稀料，施工(gong)對(dui)環境(jing)對(dui)人(ren)體無毒害；涂(tu)(tu)層外觀質量優異，附著力(li)及機械(xie)強(qiang)度強(qiang)；噴(pen)涂(tu)(tu)施工(gong)固化時(shi)間短；涂(tu)(tu)層耐腐(fu)耐磨能(neng)力(li)高出(chu)很多；不(bu)需(xu)(xu)底漆；施工(gong)簡便，對(dui)工(gong)人(ren)技術(shu)要求低；成本低于噴(pen)漆工(gong)藝；有些施工(gong)場合已(yi)經(jing)明(ming)確提出(chu)使用靜電(dian)噴(pen)塑(su)工(gong)藝處理；靜電(dian)噴(pen)粉(fen)噴(pen)涂(tu)(tu)過程中(zhong)不(bu)會出(chu)現噴(pen)漆工(gong)藝中(zhong)常見的流淌(tang)現象。

是(shi)利(li)用電(dian)(dian)暈放電(dian)(dian)現象使粉(fen)末涂(tu)料吸(xi)(xi)附(fu)在(zai)電(dian)(dian)纜橋架上(shang)的。其(qi)過程是(shi)這樣的：粉(fen)末涂(tu)料由(you)供粉(fen)系統借壓(ya)(ya)縮空氣氣體(ti)送入(ru)噴(pen)槍，在(zai)噴(pen)槍前端加有高壓(ya)(ya)靜(jing)電(dian)(dian)發(fa)生(sheng)器(qi)產生(sheng)的高壓(ya)(ya)，由(you)于電(dian)(dian)暈放電(dian)(dian)，在(zai)其(qi)附(fu)近產生(sheng)密(mi)集(ji)的電(dian)(dian)荷(he)，粉(fen)末由(you)槍嘴噴(pen)出時(shi)，形(xing)成帶電(dian)(dian)涂(tu)料粒子，它受靜(jing)電(dian)(dian)力的作(zuo)用，被吸(xi)(xi)到與其(qi)相反(fan)的工(gong)(gong)件上(shang)去，隨著噴(pen)上(shang)的粉(fen)末增多(duo)，電(dian)(dian)荷(he)積聚也(ye)越多(duo)，當達到一(yi)定(ding)厚度時(shi)，由(you)于產生(sheng)靜(jing)電(dian)(dian)排斥作(zuo)用，便不繼續吸(xi)(xi)附(fu)，從而使整個工(gong)(gong)件獲得一(yi)定(ding)厚度的粉(fen)末涂(tu)層，然后經過熱使粉(fen)末熔融、流平、固化(hua)，即在(zai)工(gong)(gong)件表面形(xing)成堅(jian)硬(ying)的涂(tu)膜。