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id="xrh9rfr" class="proBig"><div id="t7pfr5d" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhxdd/637339477029921875/3508864.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="j7pl77f" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhxdd/637339477029921875/3508864.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="t5t97jr" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>閥芯鍍鋅鎳合金廠家,電鍍鋅鎳合金</p><p><span>***更新：</span>2021-02-06 04:25:23</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="tpxl977" 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: </span>021-58088779</p><p><span>地址: </span>大團鎮(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="zjnb7zn" class="page-proshow02"><p class="title">詳細說明</p><div id="r9xv9bh" class="box"><p><p style="text-indent:25px">電鍍鋅鎳合金根據(jù)其基本特性與應(yīng)用大體上可分為三種不同的種類：一是防護性的電鍍鋅鎳合金；二是裝飾性的電鍍鋅鎳合金；三是功能性的電鍍鋅鎳合金。電鍍鋅行業(yè)內(nèi)又稱冷鍍鋅。電鍍鋅鎳合金應(yīng)用范圍：可經(jīng)常應(yīng)用于汽車工業(yè)、緊固件工業(yè)、電纜橋架、高速公路護欄及海水環(huán)境中的鋼構(gòu)件等進行防腐處理，閥芯鍍鋅鎳合金廠家。由于鋅在干燥空氣中不易變化，而在潮濕的空氣中，閥芯鍍鋅鎳合金廠家，表面能生成一種很致密的碳酸鋅薄膜，這種薄膜能有效保護內(nèi)部不再受到腐蝕。并且當(dāng)某種原因使鍍層發(fā)生破壞而露出不太大的基體時，閥芯鍍鋅鎳合金廠家，鋅與鋼基體形成微電池，使緊固件基體成為陰極而受到保護。電鍍鋅鎳合金較主要的特點就是外表具有一定的美觀性。閥芯鍍鋅鎳合金廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閥芯鍍鋅鎳合金廠家,電鍍鋅鎳合金" src="https://tyunfile.71360.com/UploadFile/shhxdd/637339477029921875/3508864.png"></div><p style="text-indent:25px">鍍鋅常見故障：鍍層不亮：（1）電流低，檢查電流是否在工藝范圍內(nèi)，并進行調(diào)整。?（2）陽極面積過小或不均勻，至使制件局部或部分不亮，應(yīng)檢查陽極狀況及分布狀況，進行必要的調(diào)整。?（3）光亮劑含量低，應(yīng)添加光亮劑，一次較多添加開缸量的20%，如果仍不亮，應(yīng)查找其他的原因。（4）氧化鋅的含量高，氰鋅比過低，應(yīng)降低氧化鋅的濃度或者添加一些東西，使氰鋅比為1.5-2.0.（5）制件基材表面有污物或粗糙度低或基材腐蝕，應(yīng)對制件進行拋光或者研磨處理。?（6）導(dǎo)電不良，應(yīng)檢查掛具、銅排、飛靶三角、圓寶座、整流器是否導(dǎo)電良好，必要時進行清理或者維修。?（7）間斷性電流，致使鍍層消光腐蝕，檢查整流器工作狀況。?閥芯鍍鋅鎳合金廠家在電鍍時工件的高電流密度與工件的低電流密度區(qū)的電流密度二者差別較大的則采用堿性工藝。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閥芯鍍鋅鎳合金廠家,電鍍鋅鎳合金" src="https://tyunfile.71360.com/UploadFile/shhxdd/637339476771845703/8505200.png"></div><p style="text-indent:25px">鋅鎳合金鍍層基本無氫脆,又具有優(yōu)異的耐蝕性,因而成為鋼鐵緊固件合適的防護層。通過電鍍鋅鎳合金工藝試驗,著重對鋅鎳合金鍍層的外觀及厚度、鎳含量、結(jié)合強度、耐蝕性、油漆匹配性進行了分析研究。結(jié)果表明:電鍍鋅鎳合金是一種適合鋼鐵緊固件的可靠的、綜合性價比較高的防護層。目前,鋼鐵緊固件的防腐蝕表面處理應(yīng)用較多的是鍍鋅。一般室內(nèi)緊固件考慮裝飾性為主,大多以電鍍鋅為選擇表面處理方法;戶外緊固件以防腐蝕為主,除選用電鍍鋅外,也有選擇熱鍍鋅為表面防護層(主要是M10以上的緊固件)。</p><p style="text-indent:25px">電鍍鋅加工過程易產(chǎn)生氫脆，所以10.9級以上的螺栓一般不采用鍍鋅的處理。雖然鍍后可以用烘箱去氫，但因鈍化膜在60℃以上時將遭破壞，因此去氫必須在電鍍后鈍化前進行。如此可操作性差，加工成本高。在現(xiàn)實中，一般生產(chǎn)廠不會主動去氫，除非特定客戶的強制要求。電鍍鋅的緊固件扭矩—預(yù)緊力一致性較差，且不穩(wěn)定，一般不用于于重要部位的連接。為了改善扭矩—預(yù)緊力一致性，也可采用鍍后涂覆潤滑物質(zhì)的方法改善和提高扭矩—預(yù)緊力一致性。電鍍鋅目的是為了防止鋼鐵類物體被腐蝕。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="閥芯鍍鋅鎳合金廠家,電鍍鋅鎳合金" src="https://tyunfile.71360.com/UploadFile/shhxdd/637339476748232422/8488084.png"></div><p style="text-indent:25px">鍍鋅鎳合金，隨著工業(yè)技術(shù)的發(fā)展，對防腐技術(shù)的要求越來越高。尤其在惡劣環(huán)境中，以往常規(guī)的防腐手段，如發(fā)藍、鍍鋅、浸鋅等已不能滿足緊固件等鋼鐵構(gòu)件的長效防腐要求。鍍鋅鎳合金層技術(shù)具有高耐蝕、薄鍍層、低氫脆、可加工、易操作等特點?？善毡閼?yīng)用于汽車工業(yè)、緊固件工業(yè)、電纜橋架、高速公路護欄及海水環(huán)境中的鋼構(gòu)件等的防腐處理。鍍鋅鎳合金有優(yōu)異的耐腐蝕性。同樣厚度時，鋅鎳合金層耐腐蝕性為純鋅鍍層的4～8倍，鍍層本身對鋼鐵基體為陽極性鍍層，可提供有效的陰極保護作用。電鍍鋅鎳合金的鋅鎳合金鍍層是以鋅作為主體的，鍍層之中具有少量鎳電鍍的層。南京鋅鎳合金</p><p style="text-indent:25px">電鍍鋅鎳合金層是一種優(yōu)良防護性鍍層，主要用作鋼鐵材料的耐蝕防護。閥芯鍍鋅鎳合金廠家</p><p style="text-indent:25px">由于電鍍鎳層的孔隙率是較高的，只有當(dāng)鍍層厚度超過25m時才能基本上無孔的。因此薄的鍍鎳層是不能單獨用來作防護性鍍層的，還是建議采用雙層鎳體系。一般在電鍍產(chǎn)品表面及內(nèi)孔掛綠，電鍍后采用VCF一385防銹切削液對鍍層可以進行封閉處理，當(dāng)防銹切削液干燥后，在產(chǎn)品上便會形成掛綠的不良現(xiàn)象。電鍍鎳內(nèi)孔露銅色，由于光亮鎳鍍液的深鍍能力不如**鍍暗銅的好，電鍍后亮鎳鍍層在產(chǎn)品內(nèi)孔部位不能完全把銅鍍層覆蓋，故會造成產(chǎn)品內(nèi)孔露銅色的不良現(xiàn)象。閥芯鍍鋅鎳合金廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3186053.html</p></div></div></div></div></div><div id="vhbzlht" class="page-right twoColRt"><div id="d9zflhl" class="box01 margin10 clearfix"><h3><a 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