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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>啟東電鍍鋅鎳供應(yīng)商,電鍍鋅鎳合金</p><p><span>***更新：</span>2021-01-03 12:24:11</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="2233m7k" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海弘夏電鍍有限公司銷售</a></p><p><span>聯(lián)系人：</span>施經(jīng)理</p><p><span>郵箱: </span>www.platessy@163.com</p><p><span>電話: </span>15221395693</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://shhxdd.shop.88360.com</p><p><span>手機(jī): </span>021-58088779</p><p><span>地址: </span>大團(tuán)鎮(zhèn)大泥公路139號</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="8e4rolf" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tixel8d" class="box"><p><p style="text-indent:25px">電鍍鋅鎳合金液體系中存在離子對。一方面，離子對的形成降低了溶液的電導(dǎo)率;另一方面，它能有效地改變?nèi)芤褐心承┡潆x子的荷電情況，從而控制某些金屬離子的電沉積反應(yīng)。眾所周知，陰極上荷負(fù)電，但要在陰極上放電的粒子可能荷正電、負(fù)電或呈電中性，當(dāng)放電粒子帶負(fù)電時，則存在電極與離子間的排斥作用，此時可加入乳化劑(如季銨鹽)，使負(fù)離子與季銨鹽之間生成離子對，從而降低負(fù)離子與陰極間的斥力作用，加速負(fù)離子的電極反應(yīng)。另外，啟東電鍍鋅鎳供應(yīng)商，在合金的電沉積過程中，添加季銨鹽等陽離子型表面活性劑能加速荷負(fù)電的配離子中的陽離子的沉積，阻礙荷正電的配離子中陽離子沉積，從而增大鍍層中從荷負(fù)電的配離子還原所得產(chǎn)物與從荷正電的配離子還原所得產(chǎn)物的比例，啟東電鍍鋅鎳供應(yīng)商，控制鍍層組成，啟東電鍍鋅鎳供應(yīng)商。電鍍鋅鎳合金中電鍍槽內(nèi)的各類添加劑一定要及時補(bǔ)充，否則會導(dǎo)致電鍍的失敗或其他問題。啟東電鍍鋅鎳供應(yīng)商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="啟東電鍍鋅鎳供應(yīng)商,電鍍鋅鎳合金" src="https://tyunfile.71360.com/UploadFile/shhxdd/637339477014921875/8154120.png"></div><p style="text-indent:25px">熱鍍鋅要注意向鋅鍋內(nèi)加鋅時，鋅錠要先預(yù)熱，加鋅時決不允許一捆捆加鋅，加鋅每次不多于五塊，應(yīng)將鋅錠縱向貼向鋅鍋壁面緩緩劃下，以免沖擊損壞鋅鍋和濺出大量鋅傷人；鋅液內(nèi)嚴(yán)禁鐵類物質(zhì)掉入，以防產(chǎn)生大量鋅渣。熔鋅時應(yīng)緩慢加熱，不可燒急火，否則會有損鍍鋅鍋的壽命，而且有大量的鋅蒸汽揮發(fā)出來。這種有害氣體被人體吸入過量后，會患一種“鑄工熱”的病癥。在熔鋅過程中，一旦鋅已具有較高溫度切不可用手去撥動鋅塊，以免灼傷，應(yīng)采用適當(dāng)?shù)墓ぞ呷軇铀?。常州鋅鎳哪家比較好在電鍍鋅鎳合金的應(yīng)用技術(shù)中，電鍍鋅鎳合金鋼管主要是先讓鋼管進(jìn)行酸洗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="啟東電鍍鋅鎳供應(yīng)商,電鍍鋅鎳合金" src="https://tyunfile.71360.com/UploadFile/shhxdd/637339477066816406/187249.png"></div><p style="text-indent:25px">電鍍鋅的標(biāo)準(zhǔn)件國家標(biāo)準(zhǔn)是多少厚度，可以抗多少小時的鹽霧試驗(yàn)？8um，根據(jù)鈍化膜不同要求標(biāo)準(zhǔn)也不一樣。通常彩鋅72h不能出現(xiàn)白銹；鹽霧實(shí)驗(yàn)要求的時間：一般白色鈍化在24小時；一般五彩鈍化在72小時；一般黑色鈍化在96小時；一般軍綠鈍化在96小時；超過以上鹽霧實(shí)驗(yàn)一般采用封閉劑處理。國內(nèi)五金、家電、汽車等行業(yè)的熱鍍鋅板一般都是進(jìn)行中性鹽霧實(shí)驗(yàn)測試其抗腐蝕能力，一般雙面鍍鋅120g/m2及以下的（鍍層厚度小于10um），鍍層出現(xiàn)5%紅銹大于48h才能通過；雙面鍍鋅在180g/m2及以上（鍍層厚度大于12um），鍍層出現(xiàn)5%紅銹大于72h才能通過。</p><p style="text-indent:25px">無氰鍍鋅又分為兩大類：弱酸性鍍鋅與堿性鍍鋅；弱酸性鍍鋅又分為硫酸鹽鍍鋅與氯化物鍍鋅，堿性鍍鋅又分為鋅酸鹽鍍鋅和焦磷酸鹽鍍鋅；而應(yīng)用普遍的是鋅酸鹽鍍鋅，氯化物鍍鋅也有一定的應(yīng)用。鋅鎳合金電鍍是在無氰鍍鋅的基礎(chǔ)上發(fā)展起來的，目前鋅鎳合金分為兩個體系：弱酸性體系和堿性體系。氯化鉀鋅鎳合金鍍液是由氯化鉀鍍鋅演變而來，其優(yōu)點(diǎn)是電流效率高，通常可達(dá)到95%以上，沉積速度快，對鋼鐵基體氫脆小，污水處理簡單，容易得到高鎳含量的合金鍍層，其缺點(diǎn)是鍍液的分散能力及覆蓋能力不好，氯離子對設(shè)備腐蝕性大，鍍層含鎳量高于15%時，鈍化困難，膜有缺陷，耐蝕性差，含鎳量低于9%時，耐蝕性也差，含鎳量在13%左右，耐蝕性好。電鍍鋅鎳合金的高熔點(diǎn)、高耐溫性，可以普遍適用在汽車發(fā)動機(jī)的零部件應(yīng)用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="啟東電鍍鋅鎳供應(yīng)商,電鍍鋅鎳合金" src="https://tyunfile.71360.com/UploadFile/shhxdd/637339476959169922/5401608.png"></div><p style="text-indent:25px">弱酸性電鍍鋅鎳合金鍍液組成及工藝條件:弱酸性電鍍鋅鎳合金在彈簧件、壓鑄件及高的強(qiáng)度鋼等部件上應(yīng)用較多，其組成以氯化鉀型為例加以說明。氯化鋅70～80g／L，氯化鎳(NiCl2·H20)100～120g／L，氯化銨30～40g／L，氯化鉀190～210g／L，硼酸20～30g／L，721-3添加劑12mL／L，SSA85添加劑35mL／L，絡(luò)合劑或穩(wěn)定劑20～35mL／L。pH=4．5～5，DK=1～4A／dm2，溫度25～40℃，陽極采用鋅與鎳分控，鍍層中鎳含量l3％左右。鍍層中鎳含量與鍍液中Zn2+：Ni2+、絡(luò)合劑種類與濃度、添加劑等有密切關(guān)系，生產(chǎn)中必須嚴(yán)格控制。電鍍鋅鎳合金的技術(shù)指標(biāo):通常鋅鎳合金鎳含量控制在8～16%范圍內(nèi)，可滿足耐蝕性的要求。啟東電鍍鋅鎳供應(yīng)商</p><p style="text-indent:25px">電鍍鋅要注意電鍍的工藝流程跟所有表面處理的工藝一樣。啟東電鍍鋅鎳供應(yīng)商</p><p style="text-indent:25px">鋅鎳合金鍍液主要分為兩種類型。一種為弱酸性體系，主要包括氯化銨型、氯化鉀型以及氯化銨和氯化鉀混合型，pH值一般為5．5左右。該鍍液成分簡單，陰極電流效率一般都在95％以上，鍍液穩(wěn)定，容易操作，獲得的電鍍層中鎳的含量可超過l0％(質(zhì)量分?jǐn)?shù))。另一種是堿性鋅酸鹽鍍液，是近幾年來發(fā)展起來的，發(fā)展速度較快。獲得的電鍍層中鎳的含量一般在5％～l0％(質(zhì)量分?jǐn)?shù))。該鍍液的主要優(yōu)點(diǎn)是：鍍液分散性好，在較寬的電流密度范圍內(nèi)鍍層合金成分比例較均勻，鍍層厚度也均勻，對設(shè)備和工件腐蝕性小，工藝穩(wěn)定，成本低。啟東電鍍鋅鎳供應(yīng)商</p><p style="text-indent:25px">上海弘夏電鍍有限公司是一家鍍鋅鎳合金、鍍銀、鍍鎳、等鍍種。主要加工產(chǎn)品有液壓閥塊類、汽車配件、醫(yī)療器械、電子產(chǎn)品、各類五金器具等。我們目前服務(wù)的客戶主要有：泰科、西門子電器、三一重工、徐工集團(tuán)、三菱空調(diào)、上汽集團(tuán)、通用集團(tuán)等。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠實(shí)可信的企業(yè)。公司自創(chuàng)立以來，投身于電鍍鋅鎳合金，電鍍鎳，電鍍錫，電鍍銀，是機(jī)械及行業(yè)設(shè)備的主力軍。上海弘夏電鍍始終以本分踏實(shí)的精神和必勝的信念，影響并帶動團(tuán)隊(duì)取得成功。上海弘夏電鍍始終關(guān)注自身，在風(fēng)云變化的時代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使上海弘夏電鍍在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2687668.html</p></div></div></div></div></div><div id="la28bda" class="page-right twoColRt"><div id="akumofm" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ga7wi3k" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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