什么是靜電噴塑？

它是(shi)用固體(ti)狀的(de)粉(fen)(fen)末(mo)涂(tu)(tu)料(liao)來代替液(ye)(ye)體(ti)狀的(de)溶劑(ji)型(xing)涂(tu)(tu)料(liao)，靠高電(dian)壓使(shi)粉(fen)(fen)末(mo)涂(tu)(tu)料(liao)帶負電(dian)，借助于靜電(dian)引力吸附在接(jie)地(di)的(de)被涂(tu)(tu)工件(jian)表(biao)面(mian)，鋁合金噴(pen)塑(su)，加熱熔(rong)融(或(huo)固化)后而獲得涂(tu)(tu)膜(mo)的(de)方法。 靜電(dian)噴(pen)塑(su)是(shi)一種新工藝(yi)，所(suo)用的(de)粉(fen)(fen)末(mo)涂(tu)(tu)料(liao)不(bu)含溶劑(ji)和分散介質等(deng)液(ye)(ye)體(ti)成分，滁州(zhou)噴(pen)塑(su)，使(shi)用時不(bu)需要稀(xi)釋(shi)和調整粘度，本身(shen)不(bu)能(neng)流(liu)動(dong)，熔(rong)融后才(cai)能(neng)流(liu)動(dong)，不(bu)能(neng)像液(ye)(ye)體(ti)涂(tu)(tu)料(liao)那(nei)樣粘在工件(jian)表(biao)面(mian)。因此，靜電(dian)噴(pen)塑(su)具(ju)有涂(tu)(tu)裝(zhuang)，涂(tu)(tu)膜(mo)性能(neng)優良，無溶劑(ji)揮發(fa)，環境污染甚少，能(neng)源消耗省(sheng)，工藝(yi)簡單，生產周期短，涂(tu)(tu)裝(zhuang)成本低，易(yi)于實現涂(tu)(tu)裝(zhuang)自動(dong)化等(deng)特(te)點(dian)。

靜電噴塑(su)與(yu)傳統的噴漆(qi)工藝具有優(you)勢(shi)比較

靜電(dian)噴(pen)涂工(gong)(gong)(gong)(gong)藝（靜電(dian)噴(pen)塑）與傳(chuan)統的(de)噴(pen)漆工(gong)(gong)(gong)(gong)藝相比(bi)較(jiao)，具(ju)有的(de)顯(xian)著(zhu)優勢，不(bu)需(xu)稀料，施(shi)(shi)工(gong)(gong)(gong)(gong)對(dui)環(huan)境無污染，對(dui)人(ren)體***i害；涂層(ceng)外(wai)觀質量(liang)優異，附著(zhu)力及機械強度強；噴(pen)涂施(shi)(shi)工(gong)(gong)(gong)(gong)固(gu)化時間短；涂層(ceng)耐(nai)腐耐(nai)磨能力高(gao)出很多；不(bu)需(xu)底漆；施(shi)(shi)工(gong)(gong)(gong)(gong)簡便，對(dui)工(gong)(gong)(gong)(gong)人(ren)技術要(yao)求低；成本低于噴(pen)漆工(gong)(gong)(gong)(gong)藝；有些施(shi)(shi)工(gong)(gong)(gong)(gong)場合已經(jing)明確提出必須使用靜電(dian)噴(pen)塑工(gong)(gong)(gong)(gong)藝處理；靜電(dian)噴(pen)粉噴(pen)涂過程(cheng)中不(bu)會(hui)出現(xian)噴(pen)漆工(gong)(gong)(gong)(gong)藝中常見的(de)流淌現(xian)象。

靜電(dian)(dian)噴塑(su)的(de)(de)工(gong)(gong)(gong)藝原(yuan)理是將塑(su)料粉末通過高壓靜電(dian)(dian)設(she)備充電(dian)(dian)，并(bing)在(zai)電(dian)(dian)場的(de)(de)作用下均勻的(de)(de)吸附(fu)在(zai)被加工(gong)(gong)(gong)的(de)(de)工(gong)(gong)(gong)件表面上，然后(hou)經過高溫烘烤，塑(su)料顆(ke)粒就會融(rong)化成(cheng)一層(ceng)(ceng)致密的(de)(de)保護層(ceng)(ceng)牢(lao)牢(lao)附(fu)著在(zai)工(gong)(gong)(gong)件表面。

靜電噴(pen)涂對(dui)粉(fen)末涂料(liao)的技術要(yao)求

穩定性。粉(fen)(fen)末(mo)涂料(liao)的(de)穩定性是指粉(fen)(fen)末(mo)在貯存(cun)或(huo)使用中(zhong)是否會發(fa)生粉(fen)(fen)末(mo)結塊，流平特性變差，碳鋼噴塑，帶電效果變差，涂膜的(de)桔紋明顯，光澤(ze)減弱，針1孔氣泡的(de)發(fa)生等等。在試制粉(fen)(fen)末(mo)涂料(liao)時(shi)，一定要注意(yi)其存(cun)放的(de)穩定性，只有具(ju)有一定穩定性的(de)粉(fen)(fen)末(mo)涂料(liao)，才能(neng)讓用戶使用。

含水量的(de)(de)濕(shi)(shi)度。粉(fen)(fen)(fen)末涂(tu)料(liao)本身(shen)的(de)(de)吸(xi)濕(shi)(shi)性直接影響(xiang)粉(fen)(fen)(fen)末的(de)(de)自(zi)身(shen)電阻雍介電常數。如果粉(fen)(fen)(fen)末嚴重吸(xi)濕(shi)(shi)則將結團(tuan)。這(zhe)是無(wu)法進行靜電噴涂(tu)的(de)(de)。一般的(de)(de)吸(xi)濕(shi)(shi)，噴塑廠家(jia)，除(chu)了影響(xiang)其(qi)帶電性能外(wai)，還(huan)將降(jiang)低粉(fen)(fen)(fen)末的(de)(de)流(liu)動性和成膜性，從而使(shi)涂(tu)膜不平滑甚至難(nan)以在工件(jian)上吸(xi)附并(bing)且涂(tu)膜會產(chan)生氣泡(pao)和針1孔。