一、靜電粉末噴涂是什么意思
靜電粉末噴涂俗稱“靜(jing)電(dian)(dian)(dian)(dian)噴(pen)塑”。靜(jing)電(dian)(dian)(dian)(dian)粉末噴(pen)涂(tu)(tu)(tu)是(shi)以(yi)具有霧化(hua)咀(使涂(tu)(tu)(tu)料霧化(hua))和放(fang)電(dian)(dian)(dian)(dian)級(ji)(發生電(dian)(dian)(dian)(dian)量電(dian)(dian)(dian)(dian)流)的涂(tu)(tu)(tu)裝(zhuang)機使涂(tu)(tu)(tu)料微(wei)粒化(hua),對之施加(jia)電(dian)(dian)(dian)(dian)荷,在(zai)電(dian)(dian)(dian)(dian)極(ji)與被(bei)涂(tu)(tu)(tu)物(wu)體之間形成電(dian)(dian)(dian)(dian)場(chang),利用其靜(jing)電(dian)(dian)(dian)(dian)吸附作(zuo)用而(er)涂(tu)(tu)(tu)裝(zhuang)。
靜(jing)電粉末(mo)噴涂(tu)工藝出現于(yu)20世(shi)(shi)紀60年代,主要是應用于(yu)金(jin)屬表(biao)面(mian)(mian)涂(tu)裝。進入20世(shi)(shi)紀90年代末(mo),隨(sui)著粉末(mo)涂(tu)料和噴涂(tu)設備的發展,靜(jing)電粉末(mo)噴涂(tu)工藝逐步(bu)開始(shi)應用于(yu)非金(jin)屬表(biao)面(mian)(mian),比(bi)如(ru)木質(zhi)家具噴粉等。
二、靜電粉末噴涂的特點
1、涂膜厚薄(bo)均勻且容易(yi)控制。既(ji)能噴(pen)薄(bo)涂層(ceng),也能噴(pen)厚涂層(ceng);既(ji)可以冷噴(pen),也可以熱噴(pen)。
2、涂(tu)料的適應性(xing)強,大多數(shu)粉(fen)末涂(tu)料都(dou)可(ke)以采(cai)用靜電粉(fen)末噴涂(tu)法進行涂(tu)裝。
3、對被涂(tu)物(wu)的適應(ying)性強,可以噴涂(tu)大、小工(gong)(gong)件(jian),也適于涂(tu)裝不同(tong)形狀的工(gong)(gong)件(jian)。
4、施工操作比較簡單(dan),涂(tu)裝工件(jian)廢品率低。既可(ke)以手工噴涂(tu)。又(you)可(ke)用自動化(hua)流水線噴涂(tu),生產效率高。
5、不含任(ren)何(he)溶劑(ji),在使用中(zhong)不存在溶劑(ji)帶(dai)來的安全和衛(wei)生問題。
6、可(ke)以(yi)同(tong)溶劑型涂(tu)料(liao)或電泳沉積涂(tu)料(liao)配套進行混合型涂(tu)裝。