無錫噴涂工作原理：

靜電噴涂是根據靜電吸引(yin)的(de)原理，即以接(jie)地(di)的(de)被涂物(wu)作(zuo)為(wei)正極，油料霧(wu)化(hua)器（即噴杯(bei)或噴盤）接(jie)高壓電作(zuo)為(wei)負極。

要涂油(you)(you)的(de)(de)(de)帶(dai)鋼穿(chuan)過上(shang)(shang)、下兩(liang)(liang)(liang)根噴(pen)(pen)油(you)(you)梁(liang)(liang)，噴(pen)(pen)油(you)(you)梁(liang)(liang)用(yong)定(ding)制(zhi)的(de)(de)(de)鋁合(he)金(jin)制(zhi)成，并固定(ding)在(zai)(zai)可調節的(de)(de)(de)絕緣支臂上(shang)(shang)。噴(pen)(pen)油(you)(you)梁(liang)(liang)上(shang)(shang)的(de)(de)(de)縫隙可均勻地(di)調到(dao)0.2mm，在(zai)(zai)其內部開設有油(you)(you)槽，進油(you)(you)管接在(zai)(zai)中部，兩(liang)(liang)(liang)根回油(you)(you)管分(fen)別接在(zai)(zai)兩(liang)(liang)(liang)端。上(shang)(shang)、下噴(pen)(pen)油(you)(you)梁(liang)(liang)與帶(dai)鋼相隔(ge)特定(ding)的(de)(de)(de)距離，噴(pen)(pen)油(you)(you)梁(liang)(liang)被設計成油(you)(you)在(zai)(zai)零(ling)壓下流(liu)到(dao)噴(pen)(pen)油(you)(you)口。噴(pen)(pen)油(you)(you)梁(liang)(liang)通電(dian)(dian)(dian)(dian)，在(zai)(zai)噴(pen)(pen)油(you)(you)梁(liang)(liang)和接地(di)的(de)(de)(de)帶(dai)鋼之間(jian)產生一個高(gao)壓靜(jing)電(dian)(dian)(dian)(dian)場，在(zai)(zai)負極(ji)(ji)產生電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)，使噴(pen)(pen)出的(de)(de)(de)油(you)(you)霧帶(dai)負電(dian)(dian)(dian)(dian)。帶(dai)電(dian)(dian)(dian)(dian)微粒受靜(jing)電(dian)(dian)(dian)(dian)場的(de)(de)(de)作(zuo)用(yong)，沿電(dian)(dian)(dian)(dian)力線方向效率高(gao)、均勻地(di)吸附到(dao)穿(chuan)過的(de)(de)(de)帶(dai)鋼上(shang)(shang)，呈(cheng)現不(bu)一樣的(de)(de)(de)“環抱效果”。靜(jing)電(dian)(dian)(dian)(dian)噴(pen)(pen)涂也可采(cai)用(yong)正(zheng)極(ji)(ji)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)，但負極(ji)(ji)性(xing)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)的(de)(de)(de)臨界電(dian)(dian)(dian)(dian)壓（起始電(dian)(dian)(dian)(dian)壓）較(jiao)正(zheng)極(ji)(ji)性(xing)電(dian)(dian)(dian)(dian)暈放電(dian)(dian)(dian)(dian)低(di)，較(jiao)為(wei)穩(wen)定(ding)，穩(wen)定(ding)且不(bu)易產生火花。

要求：

靜(jing)(jing)電(dian)(dian)噴涂的(de)(de)效果不僅取決(jue)于靜(jing)(jing)電(dian)(dian)噴涂設備和管理水平，而且取決(jue)于所使用(yong)的(de)(de)涂料(liao)品種是否符合靜(jing)(jing)電(dian)(dian)涂裝的(de)(de)要(yao)(yao)求。靜(jing)(jing)電(dian)(dian)涂裝時，要(yao)(yao)求涂料(liao)的(de)(de)電(dian)(dian)阻率(lv)(lv)低，其(qi)數值(zhi)為5～50MΩ·cm比較適(shi)宜(yi)。涂料(liao)的(de)(de)電(dian)(dian)阻率(lv)(lv)除與(yu)涂料(liao)中的(de)(de)樹脂有關外(wai)，還與(yu)選(xuan)用(yong)的(de)(de)溶(rong)劑(ji)組分(fen)有關。因此在實際涂裝時。往(wang)往(wang)采用(yong)加(jia)入溶(rong)劑(ji)的(de)(de)辦法來調(diao)整其(qi)電(dian)(dian)阻率(lv)(lv)的(de)(de)大小。

靜(jing)電(dian)(dian)噴(pen)涂(tu)用涂(tu)料(liao)的電(dian)(dian)阻率要求低，而常(chang)用涂(tu)料(liao)的電(dian)(dian)阻率比較高(gao)。為了降低涂(tu)料(liao)的電(dian)(dian)阻率，常(chang)在涂(tu)料(liao)中(zhong)添加適(shi)當極性(xing)的溶劑。

靜(jing)電噴(pen)涂室內(nei)的(de)風速(su)也很重要(yao)。噴(pen)涂室內(nei)的(de)排(pai)風主要(yao)用于排(pai)除在噴(pen)涂過程中產生的(de)溶(rong)劑蒸氣(qi)，使室內(nei)溶(rong)劑蒸氣(qi)的(de)含(han)量(liang)在有機(ji)溶(rong)劑爆(bao)炸下(xia)限濃度以(yi)下(xia)，以(yi)確保施工穩定。靜(jing)電噴(pen)涂室風速(su)應控制在0.3～0.7m/s，風速(su)過大(da)會影響噴(pen)涂效果。排(pai)風裝置中應設置風速(su)調節機(ji)構。