無錫噴塑要求：

靜電噴涂的(de)效果不僅取決于靜(jing)電(dian)(dian)噴涂(tu)設備和(he)管理水(shui)平，而且取決于所使(shi)用(yong)的(de)涂(tu)料品種是否(fou)符合靜(jing)電(dian)(dian)涂(tu)裝的(de)要(yao)求。靜(jing)電(dian)(dian)涂(tu)裝時(shi)，要(yao)求涂(tu)料的(de)電(dian)(dian)阻(zu)(zu)率(lv)(lv)低，其數值為5～50MΩ·cm比較適宜。涂(tu)料的(de)電(dian)(dian)阻(zu)(zu)率(lv)(lv)除與涂(tu)料中的(de)樹(shu)脂有關外，還與選(xuan)用(yong)的(de)溶劑組(zu)分有關。因(yin)此在實際涂(tu)裝時(shi)。往往采(cai)用(yong)加入溶劑的(de)辦法來調整其電(dian)(dian)阻(zu)(zu)率(lv)(lv)的(de)大小(xiao)。

靜電(dian)噴涂(tu)用涂(tu)料的電(dian)阻率(lv)要求(qiu)低，而(er)常用涂(tu)料的電(dian)阻率(lv)比較(jiao)高。為了(le)降(jiang)低涂(tu)料的電(dian)阻率(lv)，常在涂(tu)料中(zhong)添加適當(dang)極性的溶劑。

靜(jing)電(dian)噴涂(tu)室(shi)(shi)內的(de)(de)(de)風(feng)(feng)(feng)速也很(hen)重要(yao)。噴涂(tu)室(shi)(shi)內的(de)(de)(de)排(pai)(pai)風(feng)(feng)(feng)主要(yao)用(yong)于排(pai)(pai)除(chu)在噴涂(tu)過程(cheng)中產(chan)生的(de)(de)(de)溶(rong)劑蒸氣(qi)(qi)，使室(shi)(shi)內溶(rong)劑蒸氣(qi)(qi)的(de)(de)(de)含量在有機(ji)溶(rong)劑爆(bao)炸下限(xian)濃度以下，以確(que)保(bao)施工穩定。靜(jing)電(dian)噴涂(tu)室(shi)(shi)風(feng)(feng)(feng)速應控制(zhi)在0.3～0.7m/s，風(feng)(feng)(feng)速過大會影響噴涂(tu)效(xiao)果。排(pai)(pai)風(feng)(feng)(feng)裝置中應設置風(feng)(feng)(feng)速調節機(ji)構。

噴塑設備工作原理：

靜(jing)電噴涂(tu)是根據靜(jing)電吸引的(de)原理，即以接地的(de)被(bei)涂(tu)物作為(wei)正(zheng)極，油料霧化(hua)器(qi)（即噴杯或噴盤）接高壓電作為(wei)負極。

要涂(tu)油的(de)(de)(de)帶(dai)鋼穿(chuan)過(guo)(guo)上(shang)(shang)、下兩(liang)根(gen)噴(pen)(pen)(pen)油梁(liang)，噴(pen)(pen)(pen)油梁(liang)用定(ding)(ding)制(zhi)的(de)(de)(de)鋁合金制(zhi)成(cheng)，并固定(ding)(ding)在可(ke)調節的(de)(de)(de)絕(jue)緣支臂上(shang)(shang)。噴(pen)(pen)(pen)油梁(liang)上(shang)(shang)的(de)(de)(de)縫隙可(ke)均(jun)勻地(di)(di)(di)調到(dao)0.2mm，在其(qi)內(nei)部(bu)開設有油槽，進油管(guan)接(jie)在中部(bu)，兩(liang)根(gen)回油管(guan)分別(bie)接(jie)在兩(liang)端。上(shang)(shang)、下噴(pen)(pen)(pen)油梁(liang)與帶(dai)鋼相隔特(te)定(ding)(ding)的(de)(de)(de)距離，噴(pen)(pen)(pen)油梁(liang)被(bei)設計成(cheng)油在零(ling)壓下流到(dao)噴(pen)(pen)(pen)油口。噴(pen)(pen)(pen)油梁(liang)通電(dian)(dian)(dian)(dian)(dian)(dian)，在噴(pen)(pen)(pen)油梁(liang)和接(jie)地(di)(di)(di)的(de)(de)(de)帶(dai)鋼之間產生(sheng)一(yi)個高壓靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)場，在負極(ji)產生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)，使噴(pen)(pen)(pen)出的(de)(de)(de)油霧帶(dai)負電(dian)(dian)(dian)(dian)(dian)(dian)。帶(dai)電(dian)(dian)(dian)(dian)(dian)(dian)微粒受靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)場的(de)(de)(de)作用，沿電(dian)(dian)(dian)(dian)(dian)(dian)力線方向(xiang)效率高、均(jun)勻地(di)(di)(di)吸附到(dao)穿(chuan)過(guo)(guo)的(de)(de)(de)帶(dai)鋼上(shang)(shang)，呈(cheng)現不(bu)一(yi)樣(yang)的(de)(de)(de)“環抱(bao)效果”。靜(jing)電(dian)(dian)(dian)(dian)(dian)(dian)噴(pen)(pen)(pen)涂(tu)也(ye)可(ke)采用正(zheng)極(ji)電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)，但負極(ji)性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)臨界電(dian)(dian)(dian)(dian)(dian)(dian)壓（起始電(dian)(dian)(dian)(dian)(dian)(dian)壓）較正(zheng)極(ji)性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)暈(yun)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)低，較為(wei)穩(wen)定(ding)(ding)，穩(wen)定(ding)(ding)且不(bu)易產生(sheng)火花。