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class="twoCol"><div id="qf3mthq" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/third-wjgj_wjgjxmhz/">五金工具項目合作</a>?廣州觸屏筆外殼鍍銀加工惠州市微納科技供應(yīng)</p><div id="drypefm" class="leftbox clearfix"><h1>廣州觸屏筆外殼鍍銀加工惠州市微納科技供應(yīng)</h1><div id="29odz3t" class="proBig"><div id="d7ip3yq" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771676991830_hzwnkj_1828821.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8dsso87" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771676991830_hzwnkj_1828821.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="y23tfz2" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>廣州觸屏筆外殼鍍銀加工</p><p><span>***更新：</span>2020-05-26 11:29:13</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="zdkmd23" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">惠州市微納科技有限公司</a></p><p><span>聯(lián)系人：</span>李先生</p><p><span>郵箱: </span>lijn@vacano.com</p><p><span>電話: </span>13421322633</p><p><span>傳真: </span>0752_6531566</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0752-6531558</p><p><span>地址: </span>廣東惠東縣大嶺鎮(zhèn)產(chǎn)業(yè)轉(zhuǎn)移園華源軒大道遠銘揚工業(yè)</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="9pl8bxj" class="page-proshow02"><p class="title">詳細說明</p><div id="tsjqxwx" class="box"><p><p style="text-indent:25px">使用**物鍍銀在工藝施工過程中常會出現(xiàn)一些問題，廣州觸屏筆外殼鍍銀加工，下面羅列下出現(xiàn)的問題有：鍍銀層結(jié)晶比較粗糙，容易出現(xiàn)放黃現(xiàn)象，電鍍過程中陽極容易出現(xiàn)鈍化的現(xiàn)象。鍍銀中銀離子沉積速度緩慢，加工件（陰極）成膜效率低下且陽極溶解速度太快。鍍出來的銀層會出現(xiàn)發(fā)暗黑色斑點的情況，陽極表面會出現(xiàn)暗灰色的情況。鍍出來的銀層比較粗糙并且是灰白色的或者鍍層表面有黑色條紋。鍍出來的銀層出現(xiàn)起泡脫落的情況，結(jié)合力不太好，廣州觸屏筆外殼鍍銀加工。電鍍時電流密度和電鍍時間正常，廣州觸屏筆外殼鍍銀加工，但是鍍出來的銀層厚度不足或者不均勻。滾鍍時零件粗糙，鍍層呈橘皮狀。鍍銀中出現(xiàn)這些問題，都是與電鍍過程中相關(guān)的操作不當造成的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州觸屏筆外殼鍍銀加工" src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771676991830_hzwnkj_1828821.jpg"></div><p> 鍍銀后是需要對銀層進行一定的處理來防止其氧化變色的，下面介紹下一些常見的用來防止鍍銀層氧化變色的方法。使用硫|酸鹽鍍銀液鍍銀的在鍍膜后需要在干燥之前使用磷酸溶液進行脫模處理，反復(fù)操作，脫模是為了防止日后發(fā)黃變色。鍍銀加工避免使用逆流漂洗，容易造成發(fā)霧現(xiàn)象。如果是銅基體鍍銀的話可以先預(yù)鍍一層銅，這樣既可以增加鍍層的結(jié)合力均勻性，有能阻止黃銅離子向銀層滲透。鍍銀后需要中和和鈍化處理，從而中和鍍銀過程中殘留的酸并且在鍍銀層身上形成一保護膜。鍍銀后要避免鍍膜后清洗不干凈，也要防止電流密度過高，再者就是要避免鍍液溫度過高。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州觸屏筆外殼鍍銀加工" src="http://tyunfile.71360.com/UpLoadFile/2019/12/20/16/637124555984987068_hzwnkj_7574786.jpg"></div><p style="text-indent:25px">鍍銀工藝蕞早出現(xiàn)在十九世紀元年，蕞早的鍍銀**是英國伯明翰兩兄弟與1838年提出申請的，當時電鍍銀使用的電鍍液是呈堿性的**物鍍液。到現(xiàn)在為止，鍍銀液的配方和早期的配方基本上沒有太大的區(qū)別，***的區(qū)別可能在于提高了銀配位離子濃度從而達到快速鍍銀的目的罷了。近些年來，快速發(fā)展的額電子元器件都選擇性鍍銀，比如引線框架的選擇性鍍銀，并采用噴射鍍的方法進行鍍銀。電鍍銀所用的電流密度高達300~3000A/dm，鍍液中**銀鉀[KAg(CN)2]的濃度高達40~75g/L，陽極采用白金或鍍鉑的鈦陽極。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州觸屏筆外殼鍍銀加工" src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771352949154_hzwnkj_3055730.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/47453.html</p></div></div></div></div></div><div id="3wipbne" class="page-right twoColRt"><div id="apgne3d" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ga3ulxz" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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