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class="proBig"><div id="80ciy8i" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229901300644531/5019611.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gq288qm" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229901300644531/5019611.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="w0qy8g2" 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>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>安徽電鍍?cè)O(shè)備爬坡線,電鍍?cè)O(shè)備</p><p><span>***更新：</span>2021-02-05 03:05:56</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="8gimqui" 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(jī)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(jī): </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="coukqek" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8sgusqu" class="box"><p><p> (1)電化學(xué)極化 </p> <p> <br /> </p> <p> 由于陰極上電化學(xué)反應(yīng)速度小于外電源供給電子的速度﹐從而使電極電位向負(fù)的方向移動(dòng)而引起的極化作用 </p> <p> <br /> </p> <p> (2)濃差極化 </p> <p> <br /> </p> <p> 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(chēng)濃差極化﹐這是由于溶液中離子擴(kuò)散速度小于電子運(yùn)動(dòng)造成的。 </p> <p> <br /> </p> <p> 第四節(jié) 金屬的電積過(guò)程 </p> <p> <br /> </p> <p> 電鍍過(guò)程是鍍液中的金屬離子在外電場(chǎng)的作用下﹐經(jīng)電極反應(yīng)還原成金屬原子并在陰極上進(jìn)行金屬沉積的過(guò)程。下圖(1-2)是電沉積過(guò)程示意圖﹐完成電沉積過(guò)程必須經(jīng)過(guò)以下三個(gè)步驟﹕ </p> <p> <br /> </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(dá)陰極的雙電層溶液一側(cè)，安徽電鍍?cè)O(shè)備爬坡線，安徽電鍍?cè)O(shè)備爬坡線。首先電鍍液有六個(gè)要素：主鹽、附加鹽、絡(luò)合劑，安徽電鍍?cè)O(shè)備爬坡線、緩沖劑、陽(yáng)極活化劑和添加劑。安徽電鍍?cè)O(shè)備爬坡線</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽電鍍?cè)O(shè)備爬坡線,電鍍?cè)O(shè)備" src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229901300644531/5019611.jpg"></div><p> 第四節(jié) 金屬的電積過(guò)程 </p> <p> 電鍍過(guò)程是鍍液中的金屬離子在外電場(chǎng)的作用下﹐經(jīng)電極反應(yīng)還原成金屬原子并在陰極上進(jìn)行金屬沉積的過(guò)程。下圖(1-2)是電沉積過(guò)程示意圖﹐完成電沉積過(guò)程必須經(jīng)過(guò)以下三個(gè)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(dá)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(guò)雙電層﹐并去掉它周?chē)乃肿踊蚺湮惑w層﹐從陰極上得電子生成金屬原子。有三種方式﹕電遷移﹐對(duì)流和擴(kuò)散。 </p> <p> 電結(jié)晶﹕金屬原子沿金屬表面擴(kuò)散到結(jié)晶生長(zhǎng)點(diǎn)﹐以金屬原子態(tài)排列在晶格內(nèi)﹐形成鍍層。 </p> <p> 電鍍時(shí)﹐以上三個(gè)步驟是同時(shí)進(jìn)行的﹐但進(jìn)行的速度不同﹐速度**慢的一個(gè)被稱(chēng)為整個(gè)沉積過(guò)程的控制性環(huán)節(jié)。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。鄞州區(qū)新型電鍍?cè)O(shè)備鍍鈀鎳：改善導(dǎo)電接觸阻抗，增進(jìn)信號(hào)傳輸，耐磨性高于金。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽電鍍?cè)O(shè)備爬坡線,電鍍?cè)O(shè)備" src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229900917861328/1643900.jpg"></div><p> 首先電鍍液有六個(gè)要素：主鹽、附加鹽、絡(luò)合劑、緩沖劑、陽(yáng)極活化劑和添加劑。 </p> <p> <br /> </p> <p> 電鍍?cè)戆膫€(gè)方面：電鍍液、電鍍反應(yīng)、電極與反應(yīng)原理、金屬的電沉積過(guò)程。 </p> <p> <br /> </p> <p> 電鍍反應(yīng)中的電化學(xué)反應(yīng)：下圖是電鍍裝置示意圖，被鍍的零件為陰極，與直流電源的負(fù)極相連，金屬陽(yáng)極與直流電源的正極聯(lián)結(jié)，陽(yáng)極與陰均浸入鍍液中。當(dāng)在陰陽(yáng)兩極間施加一定電位時(shí)，則在陰極發(fā)生如下反應(yīng)：從鍍液內(nèi)部擴(kuò)散到電極和鍍液界面的金屬離子Mn+從陰極上獲得n個(gè)電子，還原成金屬M(fèi)。另一方面，在陽(yáng)極則發(fā)生與陰極完全相反的反應(yīng)，即陽(yáng)極界面上發(fā)生金屬M(fèi)的溶解，釋放n個(gè)電子生成金屬離子Mn+。 </p><p> 化學(xué)法是借氧化還原反應(yīng)或中和沉淀反應(yīng)將0、有害的物質(zhì)分解為、無(wú)害的物質(zhì)或?qū)⒅亟饘俳?jīng)沉淀和浮上法從廢水中除去。主要有以下幾種：1、還原沉淀法在電鍍廢水治理中**典型也**主要的是對(duì)含鉻廢水的治理。其方法就是在廢水中加入FeSO，NaHSO，Na2SO，SO或鐵粉等使Cr還原成C，然后再加入NaOH或石灰乳沉淀分離。該法優(yōu)點(diǎn)是設(shè)備簡(jiǎn)單，投資少處理量大，但要防止沉渣污泥造成二次污染。2、氧化破氰法是對(duì)含氰的廢水進(jìn)行氧化化學(xué)處理，如堿性氧化法、過(guò)氧化物法、水解法、臭氧處理法、電化學(xué)氧化法等。而又以堿性氧化法應(yīng)用**廣。3、化學(xué)沉淀法是指向廢水中加入藥劑(NaOH、石灰等)，使水中重金屬離子與堿的氫氧離子作用生成難溶于水的氫氧化物，然后把氫氧化物和水分離達(dá)到去除重金屬離子的目的。從工藝流程看，所選保護(hù)材料必須耐高溫（80℃左右）、耐堿、耐酸，其次，保護(hù)材料在鍍銀后能易于剝離。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="安徽電鍍?cè)O(shè)備爬坡線,電鍍?cè)O(shè)備" src="http://tyunfile.71360.com/UploadFile/nbyhjx/637229901449482422/7098509.jpg"></div><p> 章電鍍的定義 </p> <p> 電鍍是指在含有欲鍍金屬的鹽類(lèi)溶液中﹐以被鍍基體金屬為陰極﹐通過(guò)電解作用﹐使鍍液中欲鍍金屬的陽(yáng)離子在基體金屬表面沉積出來(lái)﹐形成鍍層的一種表面加工方法。鍍層性能不同于基體金屬﹐具有新的特征。根據(jù)鍍層的功能分為防護(hù)性鍍層﹐裝飾性鍍層及其它功能性鍍層。 </p> <p> 第二章電鍍的基本知識(shí) </p> <p> 節(jié) 電鍍液 </p> <p> 1.主鹽 </p> <p> 主鹽是指鍍液中能在陰極上沉積出所要求鍍層金屬的鹽﹐用于提供金屬離子。鍍液中主鹽濃度必須在一個(gè)適當(dāng)?shù)姆秶o主鹽濃度增加或減少﹐在其它條件不變時(shí)﹐都會(huì)對(duì)電沉積過(guò)程及的鍍層有影響。比如﹐主鹽濃度升高﹐電流效率提高﹐金屬沉積速度加快﹐鍍層晶粒較粗﹐溶液分散能力下降。鍍銀：改善導(dǎo)電接觸阻抗，增進(jìn)信號(hào)傳輸。（銀性能比較好，容易氧化，氧化后也導(dǎo)電）。鄞州區(qū)新型電鍍?cè)O(shè)備</p><p style="text-indent:25px">除了導(dǎo)電體以外，電鍍亦可用于經(jīng)過(guò)特殊處理的塑膠上。安徽電鍍?cè)O(shè)備爬坡線</p><p> 電鍍技術(shù)又稱(chēng)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(chǎng)的作用下，在電解質(zhì)溶液（鍍液）中由陽(yáng)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(guò)程; 電流效率：用于沉積金屬的電量占總電量的比稱(chēng)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(guò)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(shí)，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(dá)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。安徽電鍍?cè)O(shè)備爬坡線</p><p style="text-indent:25px">余姚市琰昊機(jī)械廠是一家電鍍?cè)O(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(jī)械設(shè)備、五金件的制造、加工。余姚市琰昊機(jī)械廠是電鍍?cè)O(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(zhuān)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(jī)械廠的誠(chéng)信、實(shí)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，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷(xiāo)售為一體的專(zhuān)業(yè)化公司。琰昊機(jī)械廠作為電鍍?cè)O(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(jī)械設(shè)備、五金件的制造、加工。余姚市琰昊機(jī)械廠是電鍍?cè)O(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(zhuān)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(jī)械廠的誠(chéng)信、實(shí)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。的企業(yè)之一，為客戶(hù)提供良好的龍門(mén)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(jī)械廠繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。琰昊機(jī)械廠始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專(zhuān)注與執(zhí)著使琰昊機(jī)械廠在行業(yè)的從容而自信。</p></p><br 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