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class="proBig"><div id="nhrya7i" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771470147976_hzwnkj_1106349.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3ktamog" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771470147976_hzwnkj_1106349.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="mwy38hn" 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>深圳醫(yī)用器械鍍銀工藝,鍍銀</p><p><span>***更新：</span>2020-07-08 20:23:28</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="7wqpln8" 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(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="wahew2c" class="page-proshow02"><p class="title">詳細說明</p><div id="q8tq3mo" class="box"><p><p style="text-indent:25px">鍍銀工藝蕞早出現(xiàn)在十九世紀(jì)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(dāng)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，深圳醫(yī)用器械鍍銀工藝，深圳醫(yī)用器械鍍銀工藝，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，深圳醫(yī)用器械鍍銀工藝。需注意的是：在放線的過程中不要有刮傷銀層的位置，否則也一樣會因為刮傷部分的銀層薄而氧化。深圳醫(yī)用器械鍍銀工藝</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳醫(yī)用器械鍍銀工藝,鍍銀" src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771470147976_hzwnkj_1106349.jpg"></div><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，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。電鍍時電流密度和電鍍時間正常，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(dāng)造成的。珠海傳感器外殼鍍銀工藝為了防止發(fā)生這種影響鍍層結(jié)合力的置換鍍過程；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳醫(yī)用器械鍍銀工藝,鍍銀" src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771352949154_hzwnkj_3055730.jpg"></div><p style="text-indent:25px">預(yù)鍍銀處理完后就開始鍍銀工藝了，鍍銀的目的是作為一種鍍層在工件上，在導(dǎo)電設(shè)備上降低工件使用過程中接觸電阻提高導(dǎo)電性能，或者是裝飾功能用在飾品上。鍍銀的原理與預(yù)鍍銀原理基本一致，都屬于化學(xué)反應(yīng)原理，在電的作用下，銀板會失去電子生產(chǎn)銀離子溶解于鍍液中，陰離子在產(chǎn)品得到電子而生成銀單只，并沉積到工件上面。**銀鉀為鍍銀中鍍液的主鹽，提供金屬鹽，它含有的金屬銀約為五成左右；**鉀則在鍍銀中鍍液起到鍍液絡(luò)合劑的作用，用來維持一定量的游離**鉀，穩(wěn)定鍍液，提高膜層結(jié)晶效率。</p><p style="text-indent:25px">鍍銀的那一層銀極易拋光，具有高反光和良好的導(dǎo)熱、導(dǎo)電、焊接性能。（銀的導(dǎo)電性比銅更好），鍍銀常用在裝飾行業(yè)，尤其是戒指、項鏈等裝飾品。而在電子工業(yè)、通訊和儀器儀表制造業(yè)中，絕大部分采用鍍銀工藝用來降低金屬零部件之間的電阻，提高金屬的焊接本領(lǐng)。因其具有極好的反光性能，所以在探照燈和其他反射器材中的金屬面也是采用鍍銀的。但是我們需要注意的是，如果在潮濕的大氣中銀容易產(chǎn)生“銀須”，導(dǎo)致短路現(xiàn)象，所以在印刷電路板中不建議使用鍍銀。脈沖電源在貴金屬電鍍中已有較多應(yīng)用，其著眼點主要考慮節(jié)約貴金屬用量，并且主要還是用在**物電鍍工藝。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="深圳醫(yī)用器械鍍銀工藝,鍍銀" src="http://tyunfile.71360.com/UpLoadFile/2019/8/30/15/637027771677928604_hzwnkj_8143513.jpg"></div><p style="text-indent:25px">純銀飾品和鍍銀飾品在價格上相差很大，因此有些不良商家會用鍍銀飾品冒充是純銀飾品，基本上純銀飾品都會放有925純銀、955純銀和999純銀標(biāo)簽的的，但是這樣的標(biāo)簽辨別顯然是太過于小兒科化，隨便生產(chǎn)一個也能讓鍍銀的產(chǎn)品冒充為純銀產(chǎn)品。純銀產(chǎn)品質(zhì)地比價柔軟、硬度低，使用指甲稍用力就能劃出淺痕或者是牙咬會留有牙印，而鍍銀的基材硬度都是要高于純銀的。也可以使用折彎法對其硬度進行測試，純銀質(zhì)軟，容易折彎；也就是說純度越低，硬度越大越不容易折彎。購買混來的飾品回來也可以使用稀酸浸泡進行分辨，也可直接簡單一點用磨擦看看，磨擦完出現(xiàn)其他金屬顏色說明是鍍銀產(chǎn)品，或者是磨擦出配合稀酸看看，有氣泡說明是鍍銀產(chǎn)品。特別是有些合成的有機化學(xué)物質(zhì)，對環(huán)境的遠期危害可能比**物還要危險。深圳醫(yī)用器械鍍銀工藝</p><p style="text-indent:25px">做PTFE就要比FEP等銀層要厚，而且要均勻無刮傷!這對拉絲時的機器和模具有特殊的要求；深圳醫(yī)用器械鍍銀工藝</p><p style="text-indent:25px">銀本身的性質(zhì)較為活潑，其在鍍液中的穩(wěn)定性能也是比較差的，容易引起鍍液分解。因為在元素周期里，銀是屬于貴金屬中的一員，它很難與其他的金屬形成合金鍍層.鍍銀用的鍍液也是比較有限的,大都數(shù)使用的都是含有**物的堿性溶液,**物大家都明白是什么物質(zhì)了.鍍銀的性能特點包括有:鍍層應(yīng)呈銀白色,結(jié)晶細致平滑;與空氣接觸會逐漸氧化變色，遇硫會變黑;接觸電阻低，導(dǎo)電性能極好;導(dǎo)熱性能好;防粘結(jié)性強;易焊接;具有優(yōu)良的反光特性;表面光潔銀亮，膜層均勻。鍍液一定要謹慎保管處理。深圳醫(yī)用器械鍍銀工藝</p><p style="text-indent:25px">惠州市微納科技有限公司一直專注于EMI加工; 醫(yī)療設(shè)備、5G機殼; 電子配件鍍膜; 車載攝像頭鍍膜; 醫(yī)療器械鍍膜; 鍍晶鍍膜; 電子產(chǎn)品鍍膜; WIFI信號外殼; 筆記本外殼加工鍍膜; 電子觸摸筆; 5G信號盒; 車載攝像頭配件鍍膜; 柜員機控制鍍膜; 可視電話鍍膜; 手機屏蔽鍍膜; 小型化電子設(shè)備防電磁干擾; 手機主機架鍍膜; 小型化計算機; 塑膠表面金屬化鍍膜; 小型化計算機鍍膜;，是一家橡塑的企業(yè)，擁有自己**的技術(shù)體系。目前我公司在職員工達到51~100人人，是一個有活力有能力有創(chuàng)新精神的高效團隊。誠實、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準(zhǔn)則。公司致力于打造***的[ "濺射鍍膜", "真空鍍膜", "濺射鍍膜", "外殼" ]。公司力求給客戶提供***質(zhì)量服務(wù)，我們相信誠實正直、開拓進取地為公司發(fā)展做正確的事情，將為公司和個人帶來共同的利益和進步。經(jīng)過幾年的發(fā)展，已成為[ "濺射鍍膜", "真空鍍膜", "濺射鍍膜", "外殼" ]行業(yè)**企業(yè)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/539690.html</p></div></div></div></div></div><div id="qszw3ol" class="page-right twoColRt"><div id="xhzlizw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jtq24ew" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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