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href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</a>?<a href="http://www.cdcfah.com/cp/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_fenxiyiqinh/">分析儀器</a>?<a href="http://www.cdcfah.com/cp/third-fenxiyiqinh_qtfxyqej/">其他分析儀器</a>?鎮(zhèn)江超純水銷售價格真誠推薦上海澤權(quán)儀器設備供應</p><div id="nxpmyvx" class="leftbox clearfix"><h1>鎮(zhèn)江超純水銷售價格真誠推薦上海澤權(quán)儀器設備供應</h1><div id="ueqn7tv" class="proBig"><div id="wlnu8rt" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202715938164/2606546.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="a22h3yf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202715938164/2606546.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ah288eb" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>鎮(zhèn)江超純水銷售價格,超純水</p><p><span>***更新：</span>2021-02-06 08:12:32</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="kzgn8nf" 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: </span>021-62837120</p><p><span>地址: </span>上海市徐匯區(qū)肇嘉浜路798號坤陽商務廣場303室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="y3selxj" class="page-proshow02"><p class="title">詳細說明</p><div id="7durokm" class="box"><p><p style="text-indent:25px">超純水又名超純水，是指化學純度極高的水，其主要應用在生物，鎮(zhèn)江超純水銷售價格，鎮(zhèn)江超純水銷售價格、化學化工、冶金、宇航、電力等領(lǐng)域，鎮(zhèn)江超純水銷售價格，但其對水質(zhì)純度要求相當高，所以一般應用較普遍的還是電子行業(yè)。在超純水的生產(chǎn)過程中，水中的陰陽離子可用電滲析法、反滲透法及離子交換技術(shù)等去除，水中的顆粒一般可用超過濾、膜過濾等技術(shù)去除；水中的細菌，目前國內(nèi)多采用加藥或紫外燈照射或臭氧殺菌的方法去除；水中的TOC則一般用活性炭、反滲透處理。在超純水的應用領(lǐng)域中，水的純度直接關(guān)系到器件的性能、可靠性，因此超純水要求具有相當高的純度和精度。超純水指的是不含雜質(zhì)的水。鎮(zhèn)江超純水銷售價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鎮(zhèn)江超純水銷售價格,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202715938164/2606546.png"></div><p style="text-indent:25px">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，部分設備的冷卻水，配制電鍍液等。集成電路生產(chǎn)過程中的80%的工序需要使用超純水清洗硅片，水質(zhì)的好壞與集成電路的產(chǎn)品質(zhì)量及生產(chǎn)成品率關(guān)系很大。水中的堿金屬(K、Na等)會使絕緣膜耐壓不良，重金屬(Au、Ag、Cu等)會使PN結(jié)耐壓降低，Ⅲ族元素(B、Al、Ga等)會使N型半導體特性惡化，Ⅴ族元素(P、As、Sb等)會使P型半導體特性惡化，水中細菌高溫碳化后的磷(約占灰分的20-50%)會使P型硅片上的局部區(qū)域變?yōu)镹型硅而導致器件性能變壞，水中的顆粒(包括細菌)如吸附在硅片表面，就會引起電路短路或特性變差。長春超純水代理收費標準超純水很容易受到污染，在燒杯中敞開測量，很容易受到CO吸收的影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鎮(zhèn)江超純水銷售價格,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202805244780/2658545.png"></div><p style="text-indent:25px">超純水處理：超濾技術(shù)是一種普遍用于水的凈化，溶液分離、濃縮，以及從廢水中提取有用物質(zhì)，廢水凈化再利用領(lǐng)域的高新技術(shù)。特點是使用過程簡單，不需加熱，能源節(jié)約，低壓運行，裝置占地面積小。超過濾（UF）超純水處理原理：超過濾是一種以篩分為分離原理，以壓力為推動力的膜分離過程，過濾精度在0.005-0.01μm范圍內(nèi)，可有效去除水中的微粒、膠體、細菌墊層及高分子有機物質(zhì)。可普遍應用于物質(zhì)的分離、濃縮、提純。超濾過程無相轉(zhuǎn)化，常溫操作，對熱敏性物質(zhì)的分離尤為適宜，并具有良好的耐溫、耐酸堿和耐氧化性能，能在60℃ 以下，pH為2-11的條件下長期連續(xù)使用。</p><p style="text-indent:25px">工廠里是如何生產(chǎn)超純水的？蒸餾：現(xiàn)在一般都是低溫多效蒸餾了，能耗低一些。但是一般產(chǎn)量不大，適合一些實驗室這種用水量不太大的。離子交換樹脂：比較老的技術(shù)了，產(chǎn)量大，能耗低。缺點是占地方，再生產(chǎn)生的廢棄酸堿液要處理成本，樹脂也要定期的更換，花在環(huán)保上的成本要。反滲透技術(shù)+EDI：比較高效的技術(shù)了，產(chǎn)量大占地小。缺點就是能耗高。一般是雙級反滲透加EDI，水質(zhì)要求高的后面再加一級拋光樹脂?？偟膩碚f，超純水的成本還是很高的，也很少有行業(yè)會大量的使用超純水（有些電廠會用到雙反加EDI，電廠是用水大戶），一般工業(yè)生產(chǎn)一級反滲透的超純水就夠用了。電力系統(tǒng)所用的超純水，要求各雜質(zhì)含量低達到“微克/升”級。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鎮(zhèn)江超純水銷售價格,超純水" src="https://tyunfile.71360.com/UploadFile/zequanyiqi/637408202860635552/483390.png"></div><p style="text-indent:25px">我們知道水的導電性能，與水的電阻值大小有關(guān)，電阻值大，導電性能差，電阻值小，導電性能就良好。根據(jù)歐姆定律，在水溫一定的情況下，水的電阻值R大小與電極的垂直截面積F成反比，與電極之間的距離L成正比： R=ρ＆#183;L/F 式中ρ為電阻率，或稱比電阻。電阻的單位為歐姆（歐，代號Ω），或用微歐（μΩ），1Ω等于106μΩ電阻率的國際制（SI）單位為歐米（Ω＆#183;M）。如果電極的截面積F做成1CM2，那么電阻值就等于電阻率。水的電阻率的大小，與水中含鹽量的多少，水中離子濃度、離子的電荷數(shù)以及離子的運動速度有關(guān)。因此，超純水電率很大，超純水電阻率就更大,也就說水越純，電阻率越大。超純水在電子元器件生產(chǎn)中的重要作用日益突出。長春超純水代理收費標準</p><p style="text-indent:25px">普通化工原料配料用超純水，食品行業(yè)配料用超純水。鎮(zhèn)江超純水銷售價格</p><p style="text-indent:25px">活性炭吸附超純水處理：活性炭吸附是利用活性炭的多孔性質(zhì)，使水中一種或多種有害物質(zhì)被吸附在固體表面而去除的方法。活性炭吸附對于去除水中有機物、膠體、微生物、余氯、嗅味等具有良好的效果。同時由于活性炭具有一定的還原作用，因此對于水中的氧化劑也具有良好的去除作用。由于活性炭的吸附功能具有一飽和值，當達到飽和吸附容量時，活性炭濾池的吸附功能將有效降低，因此需要注意分析活性炭的吸附能力，及時更換活性炭或通過高壓蒸汽進行消毒恢復。但同時活性炭表面吸附的有機物有可能成為細菌繁殖的營養(yǎng)源或溫床，因此活性炭濾池內(nèi)微生物的繁殖問題也值得引起注意。定期的消毒對于控制細菌繁殖是有必要的。鎮(zhèn)江超純水銷售價格</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3191385.html</p></div></div></div></div></div><div id="b8vxzgi" class="page-right twoColRt"><div id="3h2j48i" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="h8n8kev" class="recomPic likePro"><a 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