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href="http://www.cdcfah.com/cp/third-fenxiyiqinh_qtfxyqej/">其他分析儀器</a>?長(zhǎng)春超純水代理公司有哪些貼心服務(wù) 上海澤權(quán)儀器設(shè)備供應(yīng)</p><div id="8r3ocdu" class="leftbox clearfix"><h1>長(zhǎng)春超純水代理公司有哪些貼心服務(wù) 上海澤權(quán)儀器設(shè)備供應(yīng)</h1><div id="03edjar" class="proBig"><div id="hvri8lf" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202924033833/2068791.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="yrh7s2s" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202924033833/2068791.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qdulctd" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>長(zhǎng)春超純水代理公司有哪些,超純水</p><p><span>***更新：</span>2020-12-20 02:11:48</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="guwd8wd" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海澤權(quán)儀器設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>舒騁</p><p><span>郵箱: </span>2595161201@qq.com</p><p><span>電話: </span>17321076351</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.zeal-quest.com</p><p><span>手機(jī): </span>021-62837120</p><p><span>地址: </span>上海市徐匯區(qū)肇嘉浜路798號(hào)坤陽(yáng)商務(wù)廣場(chǎng)303室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="hvripfw" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="nv2pgc3" class="box"><p><p style="text-indent:25px">超純水在電子工業(yè)主要是線路板，長(zhǎng)春超純水代理公司有哪些、電子元器件生產(chǎn)中的重要作用日益突出，超純水水質(zhì)已成為影響線路板、電子元器件產(chǎn)品質(zhì)量、生產(chǎn)成品率及生產(chǎn)成本的重要因素之一，水質(zhì)要求也越來(lái)越高。在電子元器件生產(chǎn)中，超純水主要用作清洗用水及用來(lái)配制各種溶液、漿料，不同的電子元器件生產(chǎn)中超純水的用途及對(duì)水質(zhì)的要求也不同。在晶體管、集成電路生產(chǎn)中，超純水主要用于清洗硅片，另有少量用于藥液配制，硅片氧化的水汽源，長(zhǎng)春超純水代理公司有哪些，部分設(shè)備的冷卻水，長(zhǎng)春超純水代理公司有哪些，配制電鍍液等。食品加工行業(yè)用水是離不開超純水的。長(zhǎng)春超純水代理公司有哪些</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="長(zhǎng)春超純水代理公司有哪些,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202924033833/2068791.png"></div><p style="text-indent:25px">實(shí)驗(yàn)室用超純水對(duì)水質(zhì)大都要求比較高，根據(jù)不同的應(yīng)用場(chǎng)合又可分為三個(gè)級(jí)別用水：一級(jí)用水，電阻要求大于10MΩ（電導(dǎo)率低于0.1us/cm),主要用于有嚴(yán)格要求的分析試驗(yàn)，包括對(duì)顆粒有要求的試驗(yàn)。如高壓液相色譜分析用水。一級(jí)水常用二級(jí)水經(jīng)過(guò)石英設(shè)備蒸餾或反滲透及離子交換混合床處理后，再經(jīng)過(guò)0.2μm微孔濾膜過(guò)濾來(lái)制取。二級(jí)用水，電阻要求大于10MΩ（電導(dǎo)率低于0.1us/cm),主要用于無(wú)機(jī)痕量分析等試驗(yàn)，如原子吸收光譜分析用水。二級(jí)水可用多次蒸餾或反滲透及離子交換等方法制取。三級(jí)用水，三級(jí)水用于一般化學(xué)分析試驗(yàn)。三級(jí)水可用蒸餾或離子交換等方法制取。沈陽(yáng)超純水價(jià)錢多少超純水在電子工業(yè)主要是線路板、電子元器件生產(chǎn)中發(fā)揮著重要的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="長(zhǎng)春超純水代理公司有哪些,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408203080860139/7755373.png"></div><p style="text-indent:25px">在光伏、半導(dǎo)體行業(yè)電子管生產(chǎn)中,如其中混入雜質(zhì)，就會(huì)影響電子的發(fā)射，進(jìn)而影響電子管的放大性能及壽命。在面板上如果有其他的金屬離子會(huì)造成發(fā)光變色、變暗、閃動(dòng)并會(huì)造成氣泡、條跡、漏光點(diǎn)等廢次品。在光伏行業(yè)晶體管、集成電路生產(chǎn)中，水中的顆粒（包括細(xì)菌）如吸附在硅片表面，就會(huì)引起電路短路或特性變差。超純水的制取使用CEDI全名為電解式連續(xù)離子法,其主要用途是針對(duì)半導(dǎo)體、電廠、電子、制藥或?qū)嶒?yàn)室等高科技產(chǎn)業(yè)提供高純度的超純水,該技術(shù)問(wèn)世已超過(guò)15年,注冊(cè)**名為CDI,其研發(fā)成果居于市場(chǎng)帶領(lǐng)者地位,且聞名于世。CDI電解式連續(xù)去離子膜塊組的功能與傳統(tǒng)的混床離子交換樹脂相似,一般皆使用于RO(逆滲透)系統(tǒng)去除水中微量的離子,但CDI系統(tǒng)不需停機(jī)再生,因此也不需使用酸堿再生也沒(méi)有廢水排放的問(wèn)題。</p><p style="text-indent:25px">近幾年來(lái)電子級(jí)水標(biāo)準(zhǔn)也在不斷地修訂，而且超純水分析領(lǐng)域的許多突破和發(fā)展，新的儀器和新分析方法的不斷應(yīng)用都為制水工藝的發(fā)展創(chuàng)造了條件。超純水的國(guó)家標(biāo)準(zhǔn)為：GB1146.1-89至GB1146.11-89[168]，我國(guó)超純水的標(biāo)準(zhǔn)將電子級(jí)水分為五個(gè)級(jí)別：Ⅰ級(jí)、Ⅱ級(jí)、Ⅲ級(jí)、Ⅳ級(jí)和Ⅴ級(jí)，該標(biāo)準(zhǔn)是參照ASTM電子級(jí)標(biāo)準(zhǔn)而制定的。超純水：就是將水通過(guò)陽(yáng)離子交換樹脂（常用的為苯乙烯型強(qiáng)酸性陽(yáng)離子交換樹脂），則水中的陽(yáng)離子被樹脂所吸收，樹脂上的陽(yáng)離子H+被置換到水中，并和水中的陽(yáng)離子組成相應(yīng)的無(wú)機(jī)酸；含此種無(wú)機(jī)酸的水再通過(guò)陰離子交換樹脂（常用的為苯乙烯型強(qiáng)堿性陰離子）OH-被置換到水中，并和水中的H+結(jié)合成水，此即去離子水。超純水制備費(fèi)用昂貴，主要用于電子、化工、冶金、食品等行業(yè)的生產(chǎn)和科研。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="長(zhǎng)春超純水代理公司有哪些,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408201179649725/8225829.png"></div><p style="text-indent:25px">超純水很容易受到污染，在燒杯中敞開測(cè)量，很容易受到CO吸收的影響，在給水、凝結(jié)水等超純水水樣pH測(cè)量時(shí)，總是出現(xiàn)這樣一個(gè)或輕或重的現(xiàn)象：測(cè)量開始時(shí)，pH示值漸漸升高，然后又開始下降，未出現(xiàn)一個(gè)穩(wěn)定值或穩(wěn)定時(shí)間極短。pH示值升高是測(cè)量系統(tǒng)達(dá)到平衡穩(wěn)定的過(guò)程，而pH示值下降主要是受空氣中CO的影響，這影響可能發(fā)生在測(cè)量系統(tǒng)達(dá)到平衡穩(wěn)定前，也可能發(fā)生在后。超純水制備費(fèi)用昂貴，主要用于電子、化工、冶金、食品等行業(yè)的生產(chǎn)和科研。沒(méi)有人把超純水當(dāng)作飲料飲用，一是因?yàn)槌杀緲O高，二是沒(méi)必要當(dāng)飲料，三是長(zhǎng)期飲用有害健康。目前市場(chǎng)上也有打著超純水牌子的瓶裝水，似乎超純水比純凈水更好，名為“超純水”實(shí)為純凈水，誤導(dǎo)消費(fèi)，以獲**。超純水是指電阻率達(dá)到18 MΩ*cm（25℃）的水。長(zhǎng)春超純水代理公司有哪些</p><p style="text-indent:25px">超純水中沒(méi)有人體所需的礦物質(zhì)微量元素。長(zhǎng)春超純水代理公司有哪些</p><p style="text-indent:25px">要想強(qiáng)化超純水的制備，必須結(jié)合一系列技術(shù)。以電阻率為指標(biāo)監(jiān)測(cè)超純水離子含量非常有效，但其他如有機(jī)物這樣的污染物并不適合用電阻率進(jìn)行監(jiān)測(cè)。這些污染物同樣會(huì)明顯地影響實(shí)驗(yàn)?zāi)芊癯晒涂煽啃?。通過(guò)比較不同預(yù)處理手段的供水對(duì)超純水系統(tǒng)效能的影響，可以很容易的確證這種作用。無(wú)論是去離子水還是反滲透和連續(xù)電流去離子技術(shù)聯(lián)用供水，都能讓終端系統(tǒng)產(chǎn)生高電阻率的水，但兩者的終端產(chǎn)水TOC水平明顯不同。在去離子設(shè)備中，由于樹脂再生使用，產(chǎn)水的有機(jī)污染物水平變化很大。由于這種預(yù)處理手段去除有機(jī)物效果較差，會(huì)引起終端精制系統(tǒng)中陰離子樹脂被有機(jī)污染物包被，導(dǎo)致介質(zhì)過(guò)早耗盡。長(zhǎng)春超純水代理公司有哪些</p><p style="text-indent:25px">上海澤權(quán)儀器設(shè)備有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家貿(mào)易型公司。公司業(yè)務(wù)涵蓋奧林巴斯土壤中金屬分析儀，奧林巴斯合金分析儀，奧林巴斯衍射儀，連續(xù)流動(dòng)分析儀等，價(jià)格合理，品質(zhì)有保證。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)知識(shí)，遵守行業(yè)規(guī)范，植根于機(jī)械及行業(yè)設(shè)備行業(yè)的發(fā)展。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2476701.html</p></div></div></div></div></div><div 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