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id="o4sukqo" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Shzhonglin/637469246064326470/2447594.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="44sqgw4" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Shzhonglin/637469246064326470/2447594.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wkiq4ui" 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>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>江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家,化學(xué)鍍鎳</p><p><span>***更新：</span>2021-02-05 02:16:31</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="u424mge" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海眾霖五金有限公司</a></p><p><span>聯(lián)系人：</span>李俊</p><p><span>郵箱: </span>lijun@zhong-lin.cn</p><p><span>電話(huà): </span>15821195363</p><p><span>傳真: </span>020_</p><p><span>網(wǎng)址: </span>http://Shzhonglin.shop.88360.com</p><p><span>手機(jī): </span>020-15821195</p><p><span>地址: </span>上海市松江區(qū)民強(qiáng)路550號(hào)</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="cuioeki" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="26qweki" class="box"><p><p style="text-indent:25px">用化學(xué)鍍鎳沉積的鍍層，有一些不同于電沉積層的特性。①以次磷酸鈉為還原劑時(shí)，由于有磷析出，發(fā)生磷與鎳的共沉積，所以化學(xué)鍍鎳層是磷呈彌散態(tài)的鎳磷合金鍍層，鍍層中磷的質(zhì)量分?jǐn)?shù)為1%～l5%，控制磷含量得到的鎳磷鍍層致密、無(wú)孔，耐蝕性遠(yuǎn)優(yōu)于電鍍鎳。以硼氫化物或氨基硼烷為還原劑時(shí)，化學(xué)鍍鎳層是鎳硼合金鍍層，硼的含量為1%～7%。只有以肼作還原劑得到的鍍層才是純鎳層，含鎳量可達(dá)到99．5%以上。②硬度高、耐磨性良好。電鍍鎳層的硬度*為l60～180HV，而化學(xué)鍍鎳層的硬度一般為400～700HV，經(jīng)適當(dāng)熱處理后還可進(jìn)一步提高到接近甚至超過(guò)鉻鍍層的硬度，故耐磨性良好，更難得的是化學(xué)鍍鎳層兼?zhèn)淞肆己玫哪臀g與耐磨性能。③化學(xué)穩(wěn)定性高、鍍層結(jié)合力好。在大氣中以及在其他介質(zhì)中，化學(xué)鍍鎳層的化學(xué)穩(wěn)定性高于電鍍鎳層的化學(xué)穩(wěn)定性。與通常的鋼鐵、銅等基體的結(jié)合良好，結(jié)合力不低于電鍍鎳層和基體的結(jié)合力。④由于化學(xué)鍍鎳層含磷（硼）量的不同及鍍后熱處理工藝的不同，鍍鎳層的物理化學(xué)特性，如硬度、抗蝕性能、耐磨性能、電磁性能等具有豐富多彩的變化，是其他鍍種少有的，江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家，江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家。所以，江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家，化學(xué)鍍鎳的工業(yè)應(yīng)用及工藝設(shè)計(jì)具有多樣性和**性的特點(diǎn)。化學(xué)鍍鎳相信大家通過(guò)之前的介紹對(duì)其有了一定的了解了，化學(xué)鍍鎳是一種化學(xué)溶液。江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/Shzhonglin/637469246064326470/2447594.png"></div><p> 機(jī)械法除銹是對(duì)工件表面進(jìn)行噴砂、研磨、滾光或擦光等機(jī)械處理,在工件表面獲得整平的同時(shí)除去表面銹層?；瘜W(xué)法除銹是用酸或堿溶液對(duì)金屬制品進(jìn)行強(qiáng)浸蝕處理使制品表面的銹層通過(guò)化學(xué)作用和浸蝕過(guò)程所產(chǎn)生氫氣泡的機(jī)械剝離作用而除去。電化學(xué)除銹是在酸或堿溶液中對(duì)金屬制品進(jìn)行陰極或陽(yáng)極處理除去銹層。陽(yáng)極除銹是化學(xué)溶解、電化學(xué)溶解和電極反應(yīng)析出的氧氣泡的機(jī)械剝離作用而去除。陰極除銹是化學(xué)溶解和陰極析出氫氣的機(jī)械剝離作用而去除。用于化學(xué)鍍鎳前處理除銹工藝基本與電鍍的除銹工藝相同。 </p> <p> 化學(xué)沉鎳工藝是為了增強(qiáng)工件表面的耐腐蝕性和耐磨性，對(duì)工件表面顏色的改變和美觀(guān)度有很好的處理。通常工件在沒(méi)進(jìn)過(guò)處理的時(shí)候與空氣接觸，容易與空氣中的氧氣和水產(chǎn)生反應(yīng)從而氧化。比如說(shuō)銹就是氧化的一種現(xiàn)象?；瘜W(xué)鍍鎳工藝就可以隔離空氣與工件的接觸。簡(jiǎn)單的來(lái)說(shuō)就是將一種金屬離子以固態(tài)的形式附在工件表面?？梢愿鶕?jù)時(shí)間和水溶液中金屬離子的密度適當(dāng)增加電鍍層。化學(xué)鍍鎳的保護(hù)，不*是一種物理保護(hù)，也增加工件的耐磨能力，也能增加工件的使用時(shí)間。河南化學(xué)鍍鎳公司化學(xué)鍍鎳合金層的耐蝕、耐磨性能。如形狀復(fù)雜的散熱器、齒輪、噴油嘴、制動(dòng)瓦片、減振器等等4.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家,化學(xué)鍍鎳" src="https://tyunfile.71360.com/WaterMark/UploadFile/Shzhonglin/637446946291323573/6150753.png"></div><p style="text-indent:25px">食品加工業(yè)為應(yīng)用化學(xué)鍍鎳提供了一個(gè)巨大的潛在市場(chǎng)；之所以稱(chēng)之為潛在的市場(chǎng)，是因?yàn)榛瘜W(xué)鍍鎳在食品工業(yè)的廣泛應(yīng)用中存在著障礙。比如在美國(guó)，F(xiàn)DA（美國(guó)食品和藥物管理署）對(duì)于化學(xué)鍍鎳在食品工業(yè)中的應(yīng)用尚末制訂出法規(guī)標(biāo)準(zhǔn)；通常，對(duì)于化學(xué)鍍鎳層在應(yīng)用于直接與食品接觸的情況，F(xiàn)DA采取個(gè)案處理的方式予以批準(zhǔn)。究其原因，主要是因?yàn)榻?jīng)典的化學(xué)鍍液配方中含有毒的鉛、鎘等重金屬離子作為穩(wěn)定劑的緣故。然而，許多現(xiàn)代的化學(xué)鍍鎳溶液中已經(jīng)不使用重金屬離子作穩(wěn)定劑了；顯然，這個(gè)障礙遲早將會(huì)被拆除。食品包裝機(jī)械中不與食品直接接觸的零件，如：軸承、輥筒、傳送帶、液壓系統(tǒng)和齒輪等為化學(xué)鍍鎳在食品工業(yè)中的典型應(yīng)用。</p><p style="text-indent:25px">⑴鍍層厚度均勻，化學(xué)鍍液的分散程度接近100%?；瘜W(xué)鍍本身是一個(gè)自催化的氧化還原過(guò)程，只要催化基體與溶液接觸到就可以施鍍，幾乎是基體形狀的一個(gè)復(fù)制，達(dá)到仿形的程度，不會(huì)像電鍍一樣，出現(xiàn)由于電力線(xiàn)分布不均勻而引起的鍍層厚度不均的現(xiàn)象。⑵化學(xué)鍍不*可以在金屬表面施鍍，通過(guò)特殊的活化、敏化處理，也可以在非金屬表面上進(jìn)行。⑶化學(xué)鍍?cè)O(shè)備簡(jiǎn)單，不需要電源及陽(yáng)極，只要在溫度、pH值工藝參數(shù)合理的條件下，把待鍍零件浸入在鍍液中即可。⑷化學(xué)鍍的結(jié)合力、防腐性能都優(yōu)于電鍍。某些化學(xué)鍍層還有特殊的物理化學(xué)性能。⑸硬度高，耐磨性好，化學(xué)鍍鎳層熱處理后硬度達(dá)Hv1100，工模具鍍鎳后一般壽命提高3倍以上。⑹耐腐蝕強(qiáng)，化學(xué)鍍鎳層在酸、堿、鹽、氨和海水等介質(zhì)中都具有很好的耐腐蝕性，其耐腐蝕性勝于不銹鋼。化學(xué)鍍鎳合金對(duì)含硫化氫的石油和天然氣以及酸、堿、鹽等化學(xué)腐蝕介質(zhì)都具有優(yōu)良的抗蝕性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家,化學(xué)鍍鎳" src="https://tyunfile.71360.com/WaterMark/UploadFile/Shzhonglin/637446946627358840/1665760.png"></div><p style="text-indent:25px">不用外來(lái)電流，借氧化還原作用在金屬制件的表面上沉積一層鎳的方法。用于提高抗蝕性和耐磨性，增加光澤和美觀(guān)。適合于管狀或外形復(fù)雜的小零件的光亮鍍鎳，不必再經(jīng)拋光。一般將被鍍制件浸入以硫酸鎳、次磷酸二氫鈉、乙酸鈉和硼酸所配成的混合溶液內(nèi)，在一定酸度和溫度下發(fā)生變化，溶液中的鎳離子被次磷酸二氫鈉還原為原子而沉積于制件表面上，形成細(xì)致光亮的鎳鍍層。鋼鐵制件可直接鍍鎳。錫、銅和銅合金制件要先用鋁片接觸于其表面上1-3分鐘，以加速化學(xué)鍍鎳?；瘜W(xué)鍍就是在不通電的情況下，利用氧化還原反應(yīng)在具有催化表面的鍍件上，獲得金屬合金的方法。它是新近發(fā)展起來(lái)的一門(mén)新技術(shù)?；瘜W(xué)鍍鎳是一種化學(xué)溶液，在鋼部件的表面形成一層化學(xué)鍍鎳膜，有效的隔斷鋼部件與腐蝕性介質(zhì)的接觸。山東紫銅化學(xué)鍍鎳公司</p><p style="text-indent:25px">凡需要耐磨，耐蝕的零部件一般都可以用化學(xué)鍍鎳合金層來(lái)提高其壽命4.江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家</p><p style="text-indent:25px">由于化學(xué)鍍鎳層具有***的均勻性、硬度、耐磨和耐蝕性等綜合物理化學(xué)性能，該項(xiàng)技術(shù)已經(jīng)得到廣泛應(yīng)用，幾乎難以找到一個(gè)工業(yè)不采用化學(xué)鍍鎳技術(shù)。據(jù)報(bào)道，化學(xué)鍍鎳在各個(gè)工業(yè)中應(yīng)用的比例大致如下：航空航天工業(yè)：9%，汽車(chē)工業(yè)：5%，電子計(jì)算機(jī)工業(yè)：15%，食品工業(yè)：5%，機(jī)械工業(yè)：15%，核工業(yè)：2%，石油工業(yè)：10%，塑料工業(yè)：5%，電力輸送工業(yè)：3%，印刷工業(yè)：3%，泵制造業(yè)：5%，閥門(mén)制造業(yè)：17%，其他：6%。世界工業(yè)化國(guó)家的化學(xué)鍍鎳的應(yīng)用經(jīng)歷了80年代空前的發(fā)展，平均年凈增速率高達(dá)10%～15%；預(yù)計(jì)化學(xué)鍍鎳的應(yīng)用將會(huì)持續(xù)發(fā)展，平均年凈值速率將降低至6%左右，而進(jìn)入發(fā)展成熟期。在經(jīng)濟(jì)蓬勃發(fā)展的東亞和東南地區(qū)，包括中國(guó)在內(nèi)，化學(xué)鍍應(yīng)用正在上升階段，預(yù)期仍將保持空前的高速發(fā)展。江蘇不銹鋼化學(xué)鍍鎳廠(chǎng)家</p><p style="text-indent:25px">上海眾霖五金有限公司致力于五金、工具，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。上海眾霖五金作為五金加工，金屬制品加工，機(jī)械設(shè)備及配件（除特種）生產(chǎn)、加工；金屬材料、汽摩配件、五金交電、化工產(chǎn)品（除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品）銷(xiāo)售；模具設(shè)計(jì)、制造及銷(xiāo)售；從事貨物及技術(shù)的進(jìn)出口業(yè)務(wù)。的企業(yè)之一，為客戶(hù)提供良好的鍍鎳，鍍金，鍍錫，鍍銀。上海眾霖五金不斷開(kāi)拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶(hù)創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。上海眾霖五金創(chuàng)始人黎翠華，始終關(guān)注客戶(hù)，創(chuàng)新科技，竭誠(chéng)為客戶(hù)提供良好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3165487.html</p></div></div></div></div></div><div id="a4cs2ye" class="page-right twoColRt"><div id="ek4ymio" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2gygma2" 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) 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