山西電鍍設(shè)備環(huán)形線余姚市琰昊機械供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="第四節(jié)金屬的電積過程電鍍過程是鍍液中的金屬離子在外電場的作用下﹐經(jīng)電極反應(yīng)還原成金屬原子并在陰極上進行金屬沉積的過程。下圖(1-2)是電沉積過程示意圖﹐完成電沉積過程必須經(jīng)過以下三個步驟﹕ 液相"><meta name="keywords" content="山西電鍍設(shè)備環(huán)形線,電鍍設(shè)備"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229901209345703/9370594.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="z82fr2x" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229901209345703/9370594.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="84jparn" 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>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>山西電鍍設(shè)備環(huán)形線,電鍍設(shè)備</p><p><span>***更新：</span>2020-11-05 00:20:14</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="bogmsio" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">余姚市琰昊機械廠</a></p><p><span>聯(lián)系人：</span>蘇紅濤</p><p><span>郵箱: </span>1073985827@qq.com</p><p><span>電話: </span>15824566671</p><p><span>傳真: </span>0574_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0574-62067066</p><p><span>地址: </span>臨山鎮(zhèn)湖堤村湖堤</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="l3uqcde" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="n8vlhtf" class="box"><p><p> 第四節(jié) 金屬的電積過程 </p> <p> 電鍍過程是鍍液中的金屬離子在外電場的作用下﹐經(jīng)電極反應(yīng)還原成金屬原子并在陰極上進行金屬沉積的過程。下圖(1-2)是電沉積過程示意圖﹐完成電沉積過程必須經(jīng)過以下三個步驟﹕ </p> <p> 液相傳質(zhì)﹕鍍液中的水化金屬離子或絡(luò)離子從溶液內(nèi)部向極界面遷移﹐到達陰極的雙電層溶液一側(cè)。 </p> <p> 電化學(xué)反應(yīng)﹕水化金屬離子或絡(luò)離子通過雙電層﹐并去掉它周圍的水化分子或配位體層﹐從陰極上得電子生成金屬原子，山西電鍍設(shè)備環(huán)形線。有三種方式﹕電遷移﹐對流和擴散。 </p> <p> 電結(jié)晶﹕金屬原子沿金屬表面擴散到結(jié)晶生長點﹐以金屬原子態(tài)排列在晶格內(nèi)﹐形成鍍層。 </p> <p> 電鍍時﹐以上三個步驟是同時進行的﹐但進行的速度不同﹐速度**慢的一個被稱為整個沉積過程的控制性環(huán)節(jié)，山西電鍍設(shè)備環(huán)形線。不同步驟作為控制性環(huán)節(jié)﹐的電沉積結(jié)果是不一樣的，山西電鍍設(shè)備環(huán)形線。鍍錫鉛：增進焊接能力，快被其他替物取代（因含鉛現(xiàn)大部分改為鍍亮錫及霧錫）。山西電鍍設(shè)備環(huán)形線</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西電鍍設(shè)備環(huán)形線,電鍍設(shè)備" src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229901209345703/9370594.jpg"></div><p> 2.絡(luò)合劑 </p> <p> 有些情況下﹐若鍍液中主鹽的金屬離子為簡單離子時﹐則鍍層晶粒粗大﹐因此﹐要采用絡(luò)合離子的鍍液。獲得絡(luò)合離子的方法是加入絡(luò)合劑﹐即能絡(luò)合主鹽的金屬離子形成絡(luò)合物的物質(zhì)。絡(luò)合物是一種由簡單化合物相互作用而形成的“分子化合物”。在含絡(luò)合物的鍍液中﹐影響電鍍效果的主要是主鹽與絡(luò)合劑的相對含量﹐即絡(luò)合劑的游離量﹐而不是含量。 </p> <p> 3.附加鹽 </p> <p> 附加鹽是電鍍中除主要鹽外的某些堿金屬或堿土金屬鹽類﹐主要用于提高電鍍液的導(dǎo)電性﹐對主鹽中的金屬離子不起絡(luò)合作用。有些附加還能改善鍍液的深鍍能力﹐分散能力﹐產(chǎn)生細(xì)致的鍍層。山西電鍍設(shè)備環(huán)形線由于鄰近電極表液層的濃度與溶液主體的濃度發(fā)生差異而產(chǎn)生的極化稱濃差極化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西電鍍設(shè)備環(huán)形線,電鍍設(shè)備" src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229901449482422/7098509.jpg"></div><p> 電鍍技術(shù)又稱為電沉積,是在材料表面獲得金屬鍍層的主要方法之一。是在直流電場的作用下，在電解質(zhì)溶液（鍍液）中由陽極和陰極構(gòu)成回路，使溶液中的金屬離子沉積到陰極鍍件表面上的過程; 電流效率：用于沉積金屬的電量占總電量的比稱為電鍍的電流效率。 </p> <p> <br /> </p> <p> 分散能力：鍍液的分散能力是指一定的電解條件下使沉積金屬在陰極零件表面上分布均勻的能力。 </p> <p> <br /> </p> <p> 合金電鍍：兩種或兩種以上金屬離子在陰極上共沉積形成均勻細(xì)致鍍層的過程叫做合金電鍍（一般而言其**小組分應(yīng)大于1%）。 </p> <p> <br /> </p> <p> 整平能力：整平能力（即微觀分散能力）是指在金屬表面上形成鍍層時，鍍液所具有的能使鍍層的微觀輪廓比基體表面更平滑的能力。它表達了基體金屬的粗糙度比較小，波穴的深度小于0.5mm，波峰與波谷的距離很小的表面上鍍層分布的均勻性。 </p><p> 整流器的管理： </p> <p> 用于電鍍的整流器對防腐蝕性能有一定要求，不能采用非電鍍用整流電源，否則在電鍍現(xiàn)場使用壽命會很大程度縮短。同時所選功率要恰當(dāng)，決不可以小于工作滿載時的比較大工作電流強度，也不要超過比較大工作電流太多。有些企業(yè)讓1000A的整流器為只需要l00～200A電流的鍍種工作，造成資源的浪費。還有些企業(yè)則讓需要300A以上電流強度的鍍種采用實際只有100A出力的脈沖電流供電，結(jié)果是經(jīng)常發(fā)生整流器燒壞的事件，這都是選型不當(dāng)?shù)慕Y(jié)果。鍍銀：改善導(dǎo)電接觸阻抗，增進信號傳輸。（銀性能比較好，容易氧化，氧化后也導(dǎo)電）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山西電鍍設(shè)備環(huán)形線,電鍍設(shè)備" src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229900965234375/218451.jpg"></div><p> 整平能力：整平能力（即微觀分散能力）是指在金屬表面上形成鍍層時，鍍液所具有的能使鍍層的微觀輪廓比基體表面更平滑的能力。它表達了基體金屬的粗糙度比較小，波穴的深度小于0.5mm，波峰與波谷的距離很小的表面上鍍層分布的均勻性。 </p> <p> <br /> </p> <p> 或麻點：氫氣呈氣泡形式粘附在陰極表面上，阻止金屬在這些部位沉積，它只能沉積在氣泡的周圍，如果氫氣泡在整個電鍍過程中一直停留在陰極表面，則鍍好的鍍層就會有空洞或貫通的縫隙；若氫氣泡在電鍍過程中粘附得不牢固，而是間歇交替地逸出和粘附，那么這些部位將形成淺坑或點穴，在電鍍工業(yè)中通常稱它為或麻點。電鍍是利用電解的原理將導(dǎo)電體鋪上一層金屬的方法。山西電鍍設(shè)備環(huán)形線</p><p style="text-indent:25px">電解液中的鉻離子濃度，需依靠定期地向鍍液中加入鉻化合物來維持。山西電鍍設(shè)備環(huán)形線</p><p> 1993年我國機械工業(yè)部**編制了電鍍用整流設(shè)備的標(biāo)準(zhǔn)(JB/T1504-1993)，對我國設(shè)計和生產(chǎn)的電鍍整流器的型號、規(guī)格、技術(shù)參數(shù)等都作出了相關(guān)規(guī)定。隨著電力科學(xué)技術(shù)的進步，在整流電源的設(shè)計和制作上已經(jīng)有很大改進，很多電鍍電源已經(jīng)向多功能、大功率、小體積等方向發(fā)展。自動換向、可調(diào)脈沖、平滑調(diào)節(jié)等都已經(jīng)是常見的功能。常用的風(fēng)冷式可控硅整流器的技術(shù)規(guī)格見表1。 </p> <p> 電鍍槽 </p> <p> 電鍍用的鍍槽包括電鍍生產(chǎn)中各工序的**槽體。不光只是電鍍槽，還包括前處理用的除油槽、酸洗槽和清洗槽、活化槽，后處理的鈍化槽、熱水槽等。由于電鍍用槽仍然屬于非標(biāo)準(zhǔn)設(shè)備，其規(guī)格和大小有很大變通空間的設(shè)備。小到燒杯，大到水池都可以用來做鍍槽，因為只要能將鍍液裝進去而不流失的裝置，就可以做鍍槽用，就是實際電鍍工業(yè)生產(chǎn)中所用的鍍槽也是五花八門，并沒有統(tǒng)一的標(biāo)準(zhǔn)，這種狀況對加強電鍍管理是不利的。山西電鍍設(shè)備環(huán)形線</p><p style="text-indent:25px">余姚市琰昊機械廠是一家電鍍設(shè)備、噴涂設(shè)備、環(huán)保廢氣設(shè)備、烘箱烘道、塑料電鍍等產(chǎn)品，機械設(shè)備、五金件的制造、加工。余姚市琰昊機械廠是電鍍設(shè)備、噴涂設(shè)備、環(huán)保廢氣設(shè)備、烘箱烘道、塑料電鍍等產(chǎn)品專業(yè)生產(chǎn)加工的公司，擁有完整、科學(xué)的質(zhì)量管理體系。余姚市琰昊機械廠的誠信、實力和產(chǎn)品質(zhì)量獲得業(yè)界的認(rèn)可。歡迎各界朋友蒞臨參觀、指導(dǎo)和業(yè)務(wù)洽談。的公司，致力于發(fā)展為創(chuàng)新務(wù)實、誠實可信的企業(yè)。琰昊機械廠擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供龍門電鍍線，環(huán)形電鍍線，鋁氧化生產(chǎn)線，廢氣處理設(shè)備。琰昊機械廠致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。琰昊機械廠創(chuàng)始人王秋磊，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1847934.html</p></div></div></div></div></div><div id="h27cy7g" class="page-right 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