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除(chu)(chu)(chu)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)離(li)(li)子(zi)風(feng)(feng)(feng)機(ji)(ji)及靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵槍(qiang),離(li)(li)子(zi)風(feng)(feng)(feng)機(ji)(ji)能夠在各(ge)種工(gong)作(zuo)(zuo)環(huan)境(jing)中(包(bao)括凈化室)提供大范圍的(de)除(chu)(chu)(chu)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)區域、快(kuai)速的(de)除(chu)(chu)(chu)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)時間和穩(wen)定的(de)離(li)(li)子(zi)平衡(heng)(heng)電(dian)(dian)(dian)(dian)(dian)壓。特點:離(li)(li)子(zi)發生電(dian)(dian)(dian)(dian)(dian)路采(cai)用(yong)(yong)美國(guo)zhuanli技術制造內置(zhi)(zhi)式負反饋離(li)(li)子(zi)平衡(heng)(heng)自動調節(jie)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi),離(li)(li)子(zi)平衡(heng)(heng)電(dian)(dian)(dian)(dian)(dian)壓<0V±5V快(kuai)速的(de)除(chu)(chu)(chu)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)時1.0~3.0S,zhuanli設(she)計的(de) 電(dian)(dian)(dian)(dian)(dian)離(li)(li)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)清洗器可(ke)定期(qi)清除(chu)(chu)(chu)電(dian)(dian)(dian)(dian)(dian)離(li)(li)裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)上所積累的(de)灰塵,有效減少離(li)(li)子(zi)風(feng)(feng)(feng)機(ji)(ji)的(de)故障(zhang)發生率,提高離(li)(li)子(zi)風(feng)(feng)(feng)機(ji)(ji)使用(yong)(yong)壽命(ming),指(zhi)示燈指(zhi)示電(dian)(dian)(dian)(dian)(dian)離(li)(li)發生裝(zhuang)(zhuang)(zhuang)置(zhi)(zhi)的(de)工(gong)作(zuo)(zuo)狀況,景豪除(chu)(chu)(chu)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian) 離(li)(li)子(zi)風(feng)(feng)(feng)機(ji)(ji)及靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)除(chu)(chu)(chu)塵槍(qiang)均通過CE認證。2、配(pei)(穿)戴(dai)防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)產品:配(pei)(穿)戴(dai)防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)手(shou)套,防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)手(shou)腕(wan)帶(連接(jie)地(di)線(xian)),防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)服(一整套或者(zhe)單件大褂),防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)工(gong)作(zuo)(zuo)鞋(xie)。3、工(gong)作(zuo)(zuo)環(huan)境(jing)中使用(yong)(yong)消除(chu)(chu)(chu)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)的(de)產品:工(gong)作(zuo)(zuo)環(huan)境(jing)中,地(di)板采(cai)用(yong)(yong)防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)地(di)板,工(gong)作(zuo)(zuo)臺(tai)表層輔防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)臺(tai)墊,工(gong)作(zuo)(zuo)中選用(yong)(yong)防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)焊(han)臺(tai),防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)IC拔放臺(tai),防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)吸(xi)錫器,另有輔助用(yong)(yong)品(防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)酒精瓶,防(fang)(fang)靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)鑷子(zi),標(biao)配(pei)一瓶靜(jing)(jing)(jing)(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)消除(chu)(chu)(chu)劑)
世界(jie)聚(ju)(ju)酯(zhi)(zhi)(zhi)裝置正向更大(da)(da)(da)(da)經濟規模(mo)方向發展(zhan)。單(dan)系(xi)(xi)列生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)能力(li)(li)已由(you)20世紀80年(nian)代的(de)(de)(de)(de)100噸(dun)(dun)/天(tian)(tian)、200噸(dun)(dun)/天(tian)(tian)提(ti)高(gao)到(dao)90年(nian)代的(de)(de)(de)(de)300噸(dun)(dun)/天(tian)(tian)、400噸(dun)(dun)/天(tian)(tian)、480噸(dun)(dun)/天(tian)(tian)、600噸(dun)(dun)/天(tian)(tian)。目(mu)前(qian)世界(jie)前(qian)30家聚(ju)(ju)酯(zhi)(zhi)(zhi)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)廠家的(de)(de)(de)(de)平(ping)均產(chan)(chan)能達到(dao)36萬噸(dun)(dun)/年(nian),規模(mo)最大(da)(da)(da)(da)的(de)(de)(de)(de)杜邦公司(si)已達140萬噸(dun)(dun)/年(nian)。聚(ju)(ju)酯(zhi)(zhi)(zhi)工(gong)(gong)(gong)藝(yi)路線(xian)有(you)(you)直接酯(zhi)(zhi)(zhi)化法(fa)(fa)(fa)(PTA法(fa)(fa)(fa))和(he)(he)(he)(he)酯(zhi)(zhi)(zhi)交(jiao)換(huan)法(fa)(fa)(fa)(DMT法(fa)(fa)(fa))。PTA法(fa)(fa)(fa)具有(you)(you)原料(liao)消耗(hao)低(di)、反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)時(shi)(shi)間短等優勢,自80年(nian)代起己成(cheng)(cheng)為聚(ju)(ju)酯(zhi)(zhi)(zhi)的(de)(de)(de)(de)主(zhu)(zhu)(zhu)要工(gong)(gong)(gong)藝(yi)和(he)(he)(he)(he)首(shou)選技(ji)術(shu)路線(xian)。大(da)(da)(da)(da)規模(mo)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)的(de)(de)(de)(de)為連(lian)(lian)續生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)工(gong)(gong)(gong)藝(yi),半連(lian)(lian)續及間歇生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)工(gong)(gong)(gong)藝(yi)則適(shi)合中、小(xiao)型(xing)(xing)多種(zhong)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)裝置。PTA法(fa)(fa)(fa)連(lian)(lian)續工(gong)(gong)(gong)藝(yi)主(zhu)(zhu)(zhu)要有(you)(you)德(de)國吉(Zimmer)公司(si)、美國杜邦公司(si)、瑞士伊文達(Inventa)公司(si)和(he)(he)(he)(he)日本(ben)(ben)鐘(zhong)紡(Konebo)公司(si)等幾家技(ji)術(shu)。其中吉瑪、伊文達、鐘(zhong)紡技(ji)術(shu)為5釜(fu)(fu)流(liu)(liu)程(cheng)(cheng),杜邦則開發了3釜(fu)(fu)流(liu)(liu)程(cheng)(cheng)(目(mu)前(qian)正在(zai)開發2釜(fu)(fu)流(liu)(liu)程(cheng)(cheng)),兩者縮(suo)(suo)聚(ju)(ju)工(gong)(gong)(gong)藝(yi)基本(ben)(ben)相似(si),區別(bie)在(zai)于(yu)(yu)酯(zhi)(zhi)(zhi)化工(gong)(gong)(gong)藝(yi)。如5釜(fu)(fu)流(liu)(liu)程(cheng)(cheng)采(cai)(cai)(cai)用(yong)(yong)(yong)較(jiao)低(di)溫(wen)(wen)度(du)及壓力(li)(li)酯(zhi)(zhi)(zhi)化,而3釜(fu)(fu)流(liu)(liu)程(cheng)(cheng)則采(cai)(cai)(cai)用(yong)(yong)(yong)高(gao)乙(yi)二(er)醇(chun)(EG)/PTA摩爾(er)比和(he)(he)(he)(he)較(jiao)高(gao)的(de)(de)(de)(de)酯(zhi)(zhi)(zhi)化溫(wen)(wen)度(du),以強化反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)條件,加快反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)速(su)度(du),縮(suo)(suo)短反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)時(shi)(shi)間。總的(de)(de)(de)(de)反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)時(shi)(shi)間為5釜(fu)(fu)流(liu)(liu)程(cheng)(cheng)10小(xiao)保(bao)?釜(fu)(fu)流(liu)(liu)程(cheng)(cheng)3.5小(xiao)時(shi)(shi)。目(mu)前(qian)世界(jie)大(da)(da)(da)(da)型(xing)(xing)聚(ju)(ju)酯(zhi)(zhi)(zhi)公司(si)都采(cai)(cai)(cai)用(yong)(yong)(yong)集(ji)散型(xing)(xing)(DCS)控制(zhi)系(xi)(xi)統(tong)進(jin)(jin)(jin)(jin)行生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)控制(zhi)和(he)(he)(he)(he)管理,并(bing)對(dui)全流(liu)(liu)程(cheng)(cheng)或(huo)單(dan)釜(fu)(fu)流(liu)(liu)程(cheng)(cheng)進(jin)(jin)(jin)(jin)行仿真計算。2003年(nian)初(chu),伊文達-費希爾(er)(Inventa-Fisher)(I-F)公司(si)公布了其聚(ju)(ju)酯(zhi)(zhi)(zhi)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)流(liu)(liu)程(cheng)(cheng)和(he)(he)(he)(he)能耗(hao)。該(gai)工(gong)(gong)(gong)藝(yi)從PTA或(huo)DMT與乙(yi)二(er)醇(chun)(EG)反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)樹(shu)脂級或(huo)紡織級聚(ju)(ju)酯(zhi)(zhi)(zhi)。采(cai)(cai)(cai)用(yong)(yong)(yong)4釜(fu)(fu)(4R)工(gong)(gong)(gong)藝(yi),由(you)PTA和(he)(he)(he)(he)EG或(huo)熔(rong)融(rong)DMT和(he)(he)(he)(he)EG組成(cheng)(cheng)的(de)(de)(de)(de)漿液(ye),進(jin)(jin)(jin)(jin)入(ru)第(di)(di)一酯(zhi)(zhi)(zhi)化/酯(zhi)(zhi)(zhi)交(jiao)換(huan)反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)器,反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)在(zai)較(jiao)高(gao)壓力(li)(li)和(he)(he)(he)(he)溫(wen)(wen)度(du)(200~270℃)下進(jin)(jin)(jin)(jin)行,生(sheng)(sheng)(sheng)(sheng)(sheng)成(cheng)(cheng)的(de)(de)(de)(de)低(di)聚(ju)(ju)物進(jin)(jin)(jin)(jin)入(ru)第(di)(di)二(er)串級攪拌式反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)器,在(zai)較(jiao)低(di)壓力(li)(li)和(he)(he)(he)(he)較(jiao)高(gao)溫(wen)(wen)度(du)下進(jin)(jin)(jin)(jin)行反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying),反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)轉化率大(da)(da)(da)(da)于(yu)(yu)97%。然后(hou)在(zai)低(di)于(yu)(yu)常壓和(he)(he)(he)(he)較(jiao)高(gao)溫(wen)(wen)度(du)下,藉第(di)(di)3臺串級反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)器預聚(ju)(ju)合,縮(suo)(suo)聚(ju)(ju)程(cheng)(cheng)度(du)大(da)(da)(da)(da)于(yu)(yu)20,經第(di)(di)4臺DISCAGE精制(zhi)器后(hou),使最終(zhong)縮(suo)(suo)聚(ju)(ju)物的(de)(de)(de)(de)特性(i.V.)提(ti)高(gao)到(dao)0.9。能耗(hao)為:電力(li)(li)55.0 kwh/t,燃料(liao)油61.0kg/t,氮0.8m3/t,空氣9.0m3/t。采(cai)(cai)(cai)用(yong)(yong)(yong)該(gai)工(gong)(gong)(gong)藝(yi)已建(jian)有(you)(you)50多套裝置,其中13條生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)能力(li)(li)為100~700噸(dun)(dun)/天(tian)(tian)。現(xian)已有(you)(you)單(dan)系(xi)(xi)列700噸(dun)(dun)/天(tian)(tian)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)線(xian)投運。用(yong)(yong)(yong)于(yu)(yu)聚(ju)(ju)酯(zhi)(zhi)(zhi)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)縮(suo)(suo)聚(ju)(ju)反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)的(de)(de)(de)(de)催(cui)化劑(ji)種(zhong)類繁多,主(zhu)(zhu)(zhu)要有(you)(you)銻(ti)系(xi)(xi)、鍺系(xi)(xi)、鈦(tai)系(xi)(xi)、錫(xi)系(xi)(xi)等。由(you)于(yu)(yu)銻(ti)系(xi)(xi)催(cui)化劑(ji)在(zai)縮(suo)(suo)聚(ju)(ju)過程(cheng)(cheng)中能大(da)(da)(da)(da)大(da)(da)(da)(da)促進(jin)(jin)(jin)(jin)縮(suo)(suo)聚(ju)(ju)反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying),而對(dui)熱(re)降解反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)的(de)(de)(de)(de)促進(jin)(jin)(jin)(jin)程(cheng)(cheng)度(du)較(jiao)小(xiao),因此目(mu)前(qian)聚(ju)(ju)酯(zhi)(zhi)(zhi)工(gong)(gong)(gong)業(ye)普遍采(cai)(cai)(cai)用(yong)(yong)(yong)銻(ti)系(xi)(xi)催(cui)化劑(ji),主(zhu)(zhu)(zhu)要品種(zhong)有(you)(you)三氧化二(er)銻(ti)、醋(cu)酸銻(ti)以及近年(nian)來開始受到(dao)廣泛關注的(de)(de)(de)(de)乙(yi)二(er)醇(chun)銻(ti)。此外,用(yong)(yong)(yong)于(yu)(yu)酯(zhi)(zhi)(zhi)交(jiao)換(huan)反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)的(de)(de)(de)(de)錳、鋅、鈣(gai)、鈷、鉛等金屬的(de)(de)(de)(de)醋(cu)酸鹽對(dui)縮(suo)(suo)聚(ju)(ju)反(fan)(fan)(fan)(fan)(fan)應(ying)(ying)(ying)(ying)也有(you)(you)一定(ding)的(de)(de)(de)(de)催(cui)化作(zuo)用(yong)(yong)(yong)。
聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(PET)發(fa)(fa)(fa)(fa)明于1944年(nian)(nian)(nian)(nian),1949年(nian)(nian)(nian)(nian)率(lv)先在(zai)英國(guo)實現(xian)工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)化(hua)(hua)生產(chan)(chan),因(yin)其(qi)有(you)優良的(de)(de)服用(yong)(yong)和(he)(he)高強(qiang)度等(deng)性(xing)(xing)能(neng)(neng),成(cheng)為(wei)合成(cheng)纖(xian)維中產(chan)(chan)量(liang)(liang)(liang)最大(da)(da)的(de)(de)品(pin)種。聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)在(zai)20世(shi)紀(ji)(ji)70年(nian)(nian)(nian)(nian)代(dai)以前一直保持高速(su)(su)發(fa)(fa)(fa)(fa)展(zhan),其(qi)生產(chan)(chan)增長(chang)率(lv)為(wei):1960年(nian)(nian)(nian)(nian)200%、1965年(nian)(nian)(nian)(nian)50%、1970年(nian)(nian)(nian)(nian)60%,此后增速(su)(su)減緩并呈周期(qi)性(xing)(xing)發(fa)(fa)(fa)(fa)展(zhan)趨勢,1975年(nian)(nian)(nian)(nian)增速(su)(su)為(wei)30%、1982年(nian)(nian)(nian)(nian)為(wei)10%、1987年(nian)(nian)(nian)(nian)為(wei)12.6%、1992年(nian)(nian)(nian)(nian)為(wei)6%、1999年(nian)(nian)(nian)(nian)為(wei)4.3%、2001年(nian)(nian)(nian)(nian)為(wei)4.8%,預計2004年(nian)(nian)(nian)(nian)為(wei)8%。上個世(shi)紀(ji)(ji)90年(nian)(nian)(nian)(nian)代(dai)后,聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)的(de)(de)發(fa)(fa)(fa)(fa)展(zhan)重心開(kai)(kai)始轉(zhuan)向亞洲,至90年(nian)(nian)(nian)(nian)代(dai)中期(qi),因(yin)產(chan)(chan)能(neng)(neng)擴充過多(duo),除(chu)中國(guo)外(wai)已(yi)出(chu)現(xian)供大(da)(da)于求(qiu)的(de)(de)局(ju)面。到(dao)(dao)1999年(nian)(nian)(nian)(nian),聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)又迎來(lai)新的(de)(de)發(fa)(fa)(fa)(fa)展(zhan)階(jie)段,主要(yao)由(you)于瓶(ping)用(yong)(yong)和(he)(he)膜(mo)(mo)用(yong)(yong)、復合等(deng)非(fei)(fei)纖(xian)用(yong)(yong)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)用(yong)(yong)量(liang)(liang)(liang)增加,衣(yi)用(yong)(yong)滌(di)綸需求(qiu)也達到(dao)(dao)高峰。據(ju)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)世(shi)界(jie)大(da)(da)會分(fen)(fen)(fen)析(xi),從(cong)1999~2005年(nian)(nian)(nian)(nian),聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)產(chan)(chan)能(neng)(neng)還(huan)可(ke)以增長(chang)33~40%,年(nian)(nian)(nian)(nian)均增長(chang)率(lv)為(wei)6.6~8%。從(cong)2000年(nian)(nian)(nian)(nian)開(kai)(kai)始,世(shi)界(jie)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)又進入新一輪的(de)(de)快(kuai)速(su)(su)發(fa)(fa)(fa)(fa)展(zhan)期(qi)。聚(ju)(ju)(ju)(ju)(ju)(ju)脂網(wang)(wang)在(zai)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)產(chan)(chan)品(pin)上,非(fei)(fei)纖(xian)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)發(fa)(fa)(fa)(fa)展(zhan)速(su)(su)度很快(kuai)。1996年(nian)(nian)(nian)(nian),世(shi)界(jie)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)包裝(zhuang)樹脂和(he)(he)薄(bo)膜(mo)(mo)產(chan)(chan)量(liang)(liang)(liang)分(fen)(fen)(fen)別為(wei)451.9萬噸(dun)(dun)和(he)(he)138.2萬噸(dun)(dun),占(zhan)(zhan)世(shi)界(jie)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)總產(chan)(chan)量(liang)(liang)(liang)的(de)(de)20.7%和(he)(he)6.3%,1998年(nian)(nian)(nian)(nian)則分(fen)(fen)(fen)別為(wei)699.5萬噸(dun)(dun)和(he)(he)163.1萬噸(dun)(dun),占(zhan)(zhan)世(shi)界(jie)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)總產(chan)(chan)量(liang)(liang)(liang)的(de)(de)24.6%和(he)(he)5.7%。2000年(nian)(nian)(nian)(nian)分(fen)(fen)(fen)別達到(dao)(dao)823.6萬噸(dun)(dun)和(he)(he)176.9萬噸(dun)(dun),年(nian)(nian)(nian)(nian)均增長(chang)率(lv)分(fen)(fen)(fen)別為(wei)17.6%和(he)(he)6.2%,各占(zhan)(zhan)世(shi)界(jie)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)總產(chan)(chan)量(liang)(liang)(liang)的(de)(de)26.0%和(he)(he)5.59%。預計到(dao)(dao)2003年(nian)(nian)(nian)(nian),非(fei)(fei)纖(xian)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)產(chan)(chan)量(liang)(liang)(liang)約占(zhan)(zhan)聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)總產(chan)(chan)量(liang)(liang)(liang)的(de)(de)1/3。聚(ju)(ju)(ju)(ju)(ju)(ju)脂網(wang)(wang)聚(ju)(ju)(ju)(ju)(ju)(ju)脂網(wang)(wang)PET的(de)(de)用(yong)(yong)途(tu)不再主要(yao)局(ju)限于纖(xian)維,而是(shi)進一步拓展(zhan)到(dao)(dao)各類容(rong)器(qi)、包裝(zhuang)材(cai)(cai)料(liao)(liao)、薄(bo)膜(mo)(mo)、膠片、工(gong)(gong)(gong)(gong)(gong)程(cheng)塑(su)料(liao)(liao)等(deng)領(ling)域(yu),目(mu)前,PET正在(zai)越來(lai)越多(duo)地取代(dai)鋁(lv)、玻璃、陶瓷、紙張、木材(cai)(cai)、鋼鐵和(he)(he)其(qi)他合成(cheng)材(cai)(cai)料(liao)(liao),聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)的(de)(de)家庭也在(zai)持續擴大(da)(da)。發(fa)(fa)(fa)(fa)泡(pao)PET:近年(nian)(nian)(nian)(nian)來(lai)不斷探索PET的(de)(de)新用(yong)(yong)途(tu),PET擠(ji)出(chu)發(fa)(fa)(fa)(fa)泡(pao)工(gong)(gong)(gong)(gong)(gong)藝及其(qi)應用(yong)(yong)逐漸引(yin)起關注,在(zai)包裝(zhuang)材(cai)(cai)料(liao)(liao)及許多(duo)需要(yao)較高溫度的(de)(de)應用(yong)(yong)上,PET發(fa)(fa)(fa)(fa)泡(pao)體(ti)有(you)突出(chu)的(de)(de)性(xing)(xing)能(neng)(neng)。采用(yong)(yong)發(fa)(fa)(fa)(fa)泡(pao)的(de)(de)方(fang)式可(ke)減輕聚(ju)(ju)(ju)(ju)(ju)(ju)酯(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)材(cai)(cai)料(liao)(liao)的(de)(de)質量(liang)(liang)(liang),可(ke)節省成(cheng)本,發(fa)(fa)(fa)(fa)泡(pao)產(chan)(chan)品(pin)比未(wei)發(fa)(fa)(fa)(fa)泡(pao)產(chan)(chan)品(pin)有(you)更好的(de)(de)熱(re)絕(jue)(jue)緣(yuan)性(xing)(xing)能(neng)(neng)。發(fa)(fa)(fa)(fa)泡(pao)PET還(huan)具(ju)有(you)極好的(de)(de)耐熱(re)性(xing)(xing)能(neng)(neng),并且經發(fa)(fa)(fa)(fa)泡(pao)后的(de)(de)PET板具(ju)有(you)優異的(de)(de)性(xing)(xing)能(neng)(neng)成(cheng)本比,再加上PET本身(shen)就具(ju)有(you)耐油、耐化(hua)(hua)學(xue)腐蝕性(xing)(xing)、易回(hui)收(shou)等(deng)優異性(xing)(xing)能(neng)(neng),符(fu)合食(shi)品(pin)衛生要(yao)求(qiu),因(yin)此發(fa)(fa)(fa)(fa)泡(pao)在(zai)食(shi)品(pin)包裝(zhuang)、微(wei)波容(rong)器(qi)、冰箱內板、屋頂(ding)絕(jue)(jue)熱(re)、電(dian)(dian)線絕(jue)(jue)緣(yuan)、微(wei)電(dian)(dian)子(zi)電(dian)(dian)路板絕(jue)(jue)緣(yuan)、運動器(qi)材(cai)(cai)、汽車、航(hang)天工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)等(deng)方(fang)面將有(you)很大(da)(da)的(de)(de)市場。PET工(gong)(gong)(gong)(gong)(gong)程(cheng)塑(su)料(liao)(liao):PET具(ju)有(you)良好的(de)(de)力學(xue)性(xing)(xing)能(neng)(neng)、電(dian)(dian)絕(jue)(jue)緣(yuan)性(xing)(xing)、耐化(hua)(hua)學(xue)藥品(pin)性(xing)(xing)、耐蠕變性(xing)(xing)能(neng)(neng)、耐疲勞性(xing)(xing)能(neng)(neng)及耐磨擦性(xing)(xing)能(neng)(neng)等(deng),其(qi)缺點是(shi)結晶速(su)(su)率(lv)低、抗沖擊能(neng)(neng)力差。國(guo)內外(wai)工(gong)(gong)(gong)(gong)(gong)作者對(dui)其(qi)進行大(da)(da)量(liang)(liang)(liang)的(de)(de)研究工(gong)(gong)(gong)(gong)(gong)作,研制出(chu)了可(ke)用(yong)(yong)于轎(jiao)車用(yong)(yong)的(de)(de)PET工(gong)(gong)(gong)(gong)(gong)程(cheng)塑(su)料(liao)(liao),也可(ke)作為(wei)工(gong)(gong)(gong)(gong)(gong)程(cheng)塑(su)料(liao)(liao)用(yong)(yong)于電(dian)(dian)子(zi)、電(dian)(dian)器(qi)領(ling)域(yu),如(ru)儀表殼、熱(re)風口罩等(deng)。
抗(kang)(kang)靜(jing)(jing)電(dian)原理:使(shi)用聚(ju)酯(zhi)(zhi)網(wang)(wang)(wang)的設備在高(gao)速運轉時會產生靜(jing)(jing)電(dian),通過(guo)聚(ju)酯(zhi)(zhi)網(wang)(wang)(wang)里面(mian)穿有(you)(you)導電(dian)纖維(wei),可(ke)以將靜(jing)(jing)電(dian)釋放,從(cong)而起到(dao)(dao)抗(kang)(kang)靜(jing)(jing)電(dian)作用。抗(kang)(kang)靜(jing)(jing)電(dian)聚(ju)酯(zhi)(zhi)網(wang)(wang)(wang)主要(yao)用于環保、高(gao)密度(du)板(ban)生產、橡膠、化(hua)纖、干法造紙,纖維(wei)板(ban)連續壓機網(wang)(wang)(wang)帶(dai),連續預壓機網(wang)(wang)(wang)帶(dai),及物料(liao)需(xu)要(yao)導電(dian),抗(kang)(kang)靜(jing)(jing)電(dian)行(xing)業。化(hua)工(gong)等(deng)行(xing)業。聚(ju)酯(zhi)(zhi)網(wang)(wang)(wang)的分(fen)(fen)(fen)類聚(ju)酯(zhi)(zhi)網(wang)(wang)(wang)具有(you)(you)強度(du)大(da)、變型(xing)小、抗(kang)(kang)腐蝕、耐(nai)磨性(xing)好(hao),且壽命(ming)長(chang)的特(te)點,用于、制糖(tang)、制藥、陶(tao)瓷、食品(pin)、印刷、洗(xi)煤等(deng)行(xing)業。又(you)根據用途可(ke)分(fen)(fen)(fen)為聚(ju)酯(zhi)(zhi)成型(xing)網(wang)(wang)(wang),聚(ju)酯(zhi)(zhi)干網(wang)(wang)(wang),聚(ju)酯(zhi)(zhi)螺旋(xuan)網(wang)(wang)(wang),壓力(li)過(guo)濾器,污泥(ni)脫水網(wang)(wang)(wang),洗(xi)漿(jiang)網(wang)(wang)(wang),織網(wang)(wang)(wang),聚(ju)乙烯網(wang)(wang)(wang),裝飾網(wang)(wang)(wang),聚(ju)酯(zhi)(zhi)網(wang)(wang)(wang)按編(bian)織系列劃分(fen)(fen)(fen),可(ke)分(fen)(fen)(fen)為四綜(zong)(zong)、五綜(zong)(zong)、七綜(zong)(zong)、八綜(zong)(zong)、十六綜(zong)(zong)、二(er)十四綜(zong)(zong)等(deng)系列。按種類劃分(fen)(fen)(fen),可(ke)分(fen)(fen)(fen)為單層(ceng)網(wang)(wang)(wang)、雙層(ceng)網(wang)(wang)(wang)、兩(liang)層(ceng)半網(wang)(wang)(wang)、三層(ceng)網(wang)(wang)(wang)等(deng)。特(te)點:具有(you)(you)耐(nai)酸、耐(nai)堿、耐(nai)磨損、耐(nai)高(gao)溫、使(shi)用壽命(ming)長(chang),是機織干毯、帆布和(he)一(yi)般干網(wang)(wang)(wang)的數倍。網(wang)(wang)(wang)面(mian)平整(zheng),抗(kang)(kang)拉(la)強度(du)大(da),透氣性(xing)能良好(hao)。熱傳(chuan)遞效(xiao)率高(gao),能為用戶節約(yue)能源(yuan)。安(an)裝使(shi)用方便,接口無印痕,強度(du)可(ke)達到(dao)(dao)正常網(wang)(wang)(wang)。
成形網是造紙機上的重要器材,常德高效聚酯干網是造紙機上紙頁成形、脫水的器件,它對從流漿箱來的紙漿懸浮液進行脫水、并將紙幅運行至后續工段。聚酯成型網,高效聚酯干網濾布是(shi)(shi)(shi)造(zao)紙機(ji)(ji)成型(xing)(xing)部(bu)分常(chang)(chang)用(yong)(yong)濾(lv)水(shui)(shui)(shui)(shui)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)。過去多(duo)用(yong)(yong)銅網(wang)(wang)(wang)(wang)(wang)(wang)(wang),多(duo)用(yong)(yong)聚酯成型(xing)(xing)網(wang)(wang)(wang)(wang)(wang)(wang)(wang),成型(xing)(xing)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)主要(yao)(yao)由聚酯單絲編織而成。造(zao)紙網(wang)(wang)(wang)(wang)(wang)(wang)(wang)廠(chang)(chang)家為了增加成型(xing)(xing)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)的(de)(de)(de)(de)(de)使用(yong)(yong)壽(shou)命(ming),一(yi)(yi)些廠(chang)(chang)家在(zai)緯線(xian)中(zhong)間隔加入耐磨(mo)性更好(hao)(hao)(hao)的(de)(de)(de)(de)(de)尼龍單絲編織。延(yan)長(chang)成形(xing)(xing)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)的(de)(de)(de)(de)(de)使用(yong)(yong)壽(shou)命(ming),對(dui)于(yu)(yu)(yu)降(jiang)低(di)成紙成本有(you)重(zhong)(zhong)要(yao)(yao)意義,以(yi)(yi)下就是(shi)(shi)(shi)造(zao)紙網(wang)(wang)(wang)(wang)(wang)(wang)(wang)廠(chang)(chang)家在(zai)紙機(ji)(ji)實際操作中(zhong)總結(jie)出的(de)(de)(de)(de)(de)一(yi)(yi)些行之有(you)效(xiao)的(de)(de)(de)(de)(de)經驗(yan),供(gong)參(can)考。1.長(chang)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)紙機(ji)(ji)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)案(an)各(ge)元件必須精確(que)地(di)排(pai)(pai)(pai)成一(yi)(yi)線(xian),并(bing)處于(yu)(yu)(yu)良好(hao)(hao)(hao)的(de)(de)(de)(de)(de)機(ji)(ji)械狀(zhuang)態;-所(suo)(suo)有(you)濾(lv)水(shui)(shui)(shui)(shui)元件必須緊(jin)固好(hao)(hao)(hao),并(bing)處于(yu)(yu)(yu)同(tong)一(yi)(yi)高度;-檢(jian)(jian)查(cha)(cha)(cha)(cha)張緊(jin)輥(gun)(gun)(gun)(gun)和(he)自動(dong)張緊(jin)調節裝置(zhi)不(bu)(bu)能(neng)彈(dan)起;2.網(wang)(wang)(wang)(wang)(wang)(wang)(wang)案(an)保(bao)(bao)(bao)(bao)潔和(he)日常(chang)(chang)維護差是(shi)(shi)(shi)導(dao)(dao)致網(wang)(wang)(wang)(wang)(wang)(wang)(wang)子(zi)壽(shou)命(ming)縮短的(de)(de)(de)(de)(de)一(yi)(yi)個主要(yao)(yao)原因;(a)確(que)保(bao)(bao)(bao)(bao)沒有(you)纖維積(ji)聚物(wu)形(xing)(xing)成漿(jiang)塊落入成形(xing)(xing)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)內側(ce);(b)保(bao)(bao)(bao)(bao)持刮刀(dao)(dao)(dao)處于(yu)(yu)(yu)良好(hao)(hao)(hao)狀(zhuang)態;-防(fang)止(zhi)漿(jiang)料在(zai)導(dao)(dao)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)輥(gun)(gun)(gun)(gun)和(he)胸輥(gun)(gun)(gun)(gun)上積(ji)聚;-第一(yi)(yi)個外輥(gun)(gun)(gun)(gun)對(dui)于(yu)(yu)(yu)避(bi)免網(wang)(wang)(wang)(wang)(wang)(wang)(wang)子(zi)受到漿(jiang)塊損壞至關重(zhong)(zhong)要(yao)(yao);-刮刀(dao)(dao)(dao)角度(約25~30度)對(dui)于(yu)(yu)(yu)保(bao)(bao)(bao)(bao)證(zheng)適(shi)當刮水(shui)(shui)(shui)(shui)而不(bu)(bu)產生(sheng)(sheng)刮擦聲不(bu)(bu)跳(tiao)動(dong)是(shi)(shi)(shi)十分重(zhong)(zhong)要(yao)(yao)的(de)(de)(de)(de)(de);-刮刀(dao)(dao)(dao)負(fu)(fu)荷需反復試(shi)驗(yan),但必須避(bi)免過載;-對(dui)于(yu)(yu)(yu)任何一(yi)(yi)把及(ji)所(suo)(suo)有(you)刮刀(dao)(dao)(dao),擺動(dong)是(shi)(shi)(shi)一(yi)(yi)個很好(hao)(hao)(hao)的(de)(de)(de)(de)(de)預警;-應經常(chang)(chang)檢(jian)(jian)查(cha)(cha)(cha)(cha)胸輥(gun)(gun)(gun)(gun)刮刀(dao)(dao)(dao)以(yi)(yi)免造(zao)成網(wang)(wang)(wang)(wang)(wang)(wang)(wang)痕(hen)(hen)或(huo)胸輥(gun)(gun)(gun)(gun)帶有(you)太(tai)多(duo)水(shui)(shui)(shui)(shui);(c)檢(jian)(jian)查(cha)(cha)(cha)(cha)接水(shui)(shui)(shui)(shui)盤(pan)孔(kong)(kong)洞、生(sheng)(sheng)銹的(de)(de)(de)(de)(de)螺栓或(huo)噴淋(lin)閥(fa)門(men);-噴淋(lin)閥(fa)門(men)四周不(bu)(bu)均勻的(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)流(liu)可(ke)能(neng)導(dao)(dao)致金屬(shu)剝落折(zhe)斷并(bing)流(liu)經噴淋(lin)管;造(zao)紙網(wang)(wang)(wang)(wang)(wang)(wang)(wang)廠(chang)(chang)家3.消除有(you)磨(mo)蝕作用(yong)(yong)的(de)(de)(de)(de)(de)填料,如:硫酸鈣;4.檢(jian)(jian)查(cha)(cha)(cha)(cha)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)子(zi)的(de)(de)(de)(de)(de)軌(gui)跡、校正(zheng)、張緊(jin)、負(fu)(fu)荷及(ji)滑(hua)(hua)移;-確(que)保(bao)(bao)(bao)(bao)紙機(ji)(ji)橫向(xiang)張力均勻;-不(bu)(bu)要(yao)(yao)在(zai)太(tai)松弛狀(zhuang)態下,運行成形(xing)(xing)網(wang)(wang)(wang)(wang)(wang)(wang)(wang);5.維持噴淋(lin)水(shui)(shui)(shui)(shui)溫度和(he)pH值與漿(jiang)料相一(yi)(yi)致;-確(que)保(bao)(bao)(bao)(bao)兩(liang)側(ce)噴淋(lin)清水(shui)(shui)(shui)(shui)管不(bu)(bu)堵;6.采用(yong)(yong)低(di)摩擦系數真(zhen)空(kong)(kong)吸(xi)水(shui)(shui)(shui)(shui)箱(xiang)(xiang)上表(biao)面;-檢(jian)(jian)查(cha)(cha)(cha)(cha)真(zhen)空(kong)(kong)吸(xi)水(shui)(shui)(shui)(shui)箱(xiang)(xiang)上表(biao)面是(shi)(shi)(shi)否平坦;7.減少真(zhen)空(kong)(kong)吸(xi)水(shui)(shui)(shui)(shui)箱(xiang)(xiang)數量,增大開孔(kong)(kong);-降(jiang)低(di)真(zhen)空(kong)(kong)度,防(fang)止(zhi)成形(xing)(xing)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)在(zai)真(zhen)空(kong)(kong)吸(xi)水(shui)(shui)(shui)(shui)箱(xiang)(xiang)上卡(ka)滯或(huo)阻塞;8.排(pai)(pai)(pai)除漿(jiang)內粗砂(離心除渣器);-檢(jian)(jian)查(cha)(cha)(cha)(cha)成形(xing)(xing)板、真(zhen)空(kong)(kong)吸(xi)水(shui)(shui)(shui)(shui)箱(xiang)(xiang)表(biao)面和(he)案(an)板上是(shi)(shi)(shi)否存在(zai)劃(hua)痕(hen)(hen)和(he)毛刺;9.采用(yong)(yong)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)子(zi)壽(shou)命(ming)延(yan)長(chang)劑(網(wang)(wang)(wang)(wang)(wang)(wang)(wang)子(zi)保(bao)(bao)(bao)(bao)潔劑);10.應有(you)適(shi)當富裕(yu)牽引力以(yi)(yi)保(bao)(bao)(bao)(bao)證(zheng)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)子(zi)不(bu)(bu)在(zai)胸輥(gun)(gun)(gun)(gun)處打滑(hua)(hua);11.在(zai)操作規程的(de)(de)(de)(de)(de)最低(di)吸(xi)水(shui)(shui)(shui)(shui)箱(xiang)(xiang)真(zhen)空(kong)(kong)度下運行;-保(bao)(bao)(bao)(bao)證(zheng)水(shui)(shui)(shui)(shui)流(liu)能(neng)從(cong)吸(xi)水(shui)(shui)(shui)(shui)箱(xiang)(xiang)自由地(di)進入水(shui)(shui)(shui)(shui)封槽;12.檢(jian)(jian)查(cha)(cha)(cha)(cha)成形(xing)(xing)板的(de)(de)(de)(de)(de)安裝以(yi)(yi)確(que)保(bao)(bao)(bao)(bao)有(you)足夠空(kong)(kong)間供(gong)均勻、最小的(de)(de)(de)(de)(de)胸輥(gun)(gun)(gun)(gun)排(pai)(pai)(pai)水(shui)(shui)(shui)(shui);13.檢(jian)(jian)查(cha)(cha)(cha)(cha)網(wang)(wang)(wang)(wang)(wang)(wang)(wang)子(zi)轉向(xiang)輥(gun)(gun)(gun)(gun)系統的(de)(de)(de)(de)(de)保(bao)(bao)(bao)(bao)潔;-檢(jian)(jian)查(cha)(cha)(cha)(cha)刮刀(dao)(dao)(dao)、刮刀(dao)(dao)(dao)負(fu)(fu)荷、噴淋(lin)水(shui)(shui)(shui)(shui)、軸承及(ji)過量的(de)(de)(de)(de)(de)噴淋(lin)水(shui)(shui)(shui)(shui)壓;14.檢(jian)(jian)查(cha)(cha)(cha)(cha)定(ding)邊裝置(zhi)或(huo)流(liu)漿(jiang)箱(xiang)(xiang)頰板的(de)(de)(de)(de)(de)磨(mo)損條痕(hen)(hen),以(yi)(yi)確(que)定(ding)是(shi)(shi)(shi)否安裝過低(di)。
污泥脫(tuo)水(shui)網(wang)(wang)接(jie)(jie)口(kou)(kou)采用(yong)316材質的(de)不(bu)銹(xiu)鋼(gang)扣制作(zuo)而成,接(jie)(jie)口(kou)(kou)覆蓋鋼(gang)扣的(de)膠水(shui)采用(yong)德國進口(kou)(kou)酯脂膠,膠水(shui)的(de)作(zuo)用(yong)主要是保護鋼(gang)扣不(bu)脫(tuo)落,以(yi)及避免損傷到刮刀。1、首先將(jiang)設備(bei)中(zhong)舊(jiu)(jiu)網(wang)(wang)帶的(de)接(jie)(jie)口(kou)(kou)轉到便于拆(chai)接(jie)(jie)口(kou)(kou)的(de)位置(zhi)。2、將(jiang)舊(jiu)(jiu)網(wang)(wang)帶松開(kai)來,抽出接(jie)(jie)口(kou)(kou)連接(jie)(jie)的(de)鋼(gang)絲(si)。3、再將(jiang)新(xin)網(wang)(wang)帶跟舊(jiu)(jiu)網(wang)(wang)帶連接(jie)(jie)在一起。4、開(kai)動機(ji)(ji)器(qi),將(jiang)舊(jiu)(jiu)網(wang)(wang)帶拉出來,同時(shi)新(xin)網(wang)(wang)帶被(bei)帶入(ru)設備(bei)中(zhong)。5、當舊(jiu)(jiu)網(wang)(wang)帶全部被(bei)拉出設備(bei)時(shi),將(jiang)舊(jiu)(jiu)網(wang)(wang)帶從新(xin)網(wang)(wang)帶上(shang)拆(chai)下來。6、新(xin)網(wang)(wang)帶的(de)兩頭鋼(gang)扣交叉對合在一起,用(yong)不(bu)銹(xiu)鋼(gang)絲(si)穿好(hao)(hao)。7、將(jiang)網(wang)(wang)帶緊起來,開(kai)機(ji)(ji)運轉,調好(hao)(hao)跑偏(pian)現象,就可正常使(shi)用(yong)。
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