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src="https://tyunfile.71360.com/UploadFile/haolin123/637333783093632812/9233108.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gsjv2z3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333783093632812/9233108.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="iams8mq" 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>浙江化學(xué)鍍鎳加工,化學(xué)鍍鎳</p><p><span>***更新：</span>2021-01-17 01:14:00</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="uh2kl2j" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海昊琳化工有限公司</a></p><p><span>聯(lián)系人：</span>彭**</p><p><span>郵箱: </span>SHHL668@163.com</p><p><span>電話: </span>13917612469</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://haolin123.shop.88360.com</p><p><span>手機(jī): </span>021-59220920</p><p><span>地址: </span>白鶴鎮(zhèn)白石公路1360路28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="y3joahd" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="b8xxgcd" class="box"><p><p style="text-indent:25px">化學(xué)鍍鎳在金屬表面的應(yīng)用：在涂裝處理過程中，如果不清理油脂、氧化皮和銹層，不進(jìn)行磷化處理，直接進(jìn)行涂漆和靜電噴涂，就會(huì)使鋼鐵表面的涂層產(chǎn)生脫落，失去了涂裝的意義。成分分析是指根據(jù)已經(jīng)選定的某產(chǎn)品或材料，綜合利用樣品進(jìn)行前處理，初步判斷，定性分析，定量分析，對產(chǎn)品或材料的各個(gè)組成成分進(jìn)行精確分析的過程。化學(xué)品產(chǎn)品或與制品通過多種分離技術(shù)，利用高科技分析儀器進(jìn)行檢測，而后將檢測的結(jié)果通過經(jīng)過技術(shù)人員的逆向推導(dǎo)，浙江化學(xué)鍍鎳加工，完成對產(chǎn)品成分分析，浙江化學(xué)鍍鎳加工，達(dá)到產(chǎn)品改進(jìn)，浙江化學(xué)鍍鎳加工，配方分析，模仿生產(chǎn)的目的。在這個(gè)過程中技術(shù)人員除了依靠先進(jìn)設(shè)備支持外，同時(shí)還必須具有豐富的行業(yè)知識(shí)和理論知識(shí)?；瘜W(xué)鍍鎳鍍層的結(jié)合強(qiáng)度大。浙江化學(xué)鍍鎳加工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江化學(xué)鍍鎳加工,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783093632812/9233108.png"></div><p style="text-indent:25px">化學(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)展起來的一門新技術(shù)。化學(xué)鍍鎳經(jīng)過多年的不斷探索與研究，近幾年已發(fā)展極成熟了，化學(xué)鍍鎳水幾乎適用于所有金屬表面鍍鎳。如：鋼鐵鍍鎳，不銹鋼鍍鎳，鋁鍍鎳，銅鍍鎳等，它同樣適用于非金屬表面鍍鎳。比如：陶瓷鍍鎳，玻璃鍍鎳，金剛石鍍鎳，碳片鍍鎳，塑料鍍鎳，樹脂鍍鎳等。使用范圍是非常普遍的。化學(xué)鍍是在催化劑Fe的催化作用下，溶液中的次磷酸根在催化表面催化脫氫，形成活性氫化物，并被氧化成亞磷酸根;活性氫化物與溶液中的鎳離子進(jìn)行還原反應(yīng)而沉積鎳，其本身氧化成氫氣。海寧化學(xué)鍍鎳價(jià)格經(jīng)過半個(gè)多世紀(jì)的研究開發(fā)，化學(xué)鍍鎳已進(jìn)入發(fā)展成熟期，其現(xiàn)狀可概括為：技術(shù)成熟、功能多樣、用途普遍。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江化學(xué)鍍鎳加工,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783030097656/6476087.png"></div><p style="text-indent:25px">化學(xué)鍍鎳在采礦工業(yè)的應(yīng)用：采礦工業(yè)環(huán)境條件惡劣，井下機(jī)械不可避免地接觸鹽水、礦酸，以受腐蝕和磨損的考驗(yàn)。因此，采礦機(jī)械需要進(jìn)行表面保護(hù)。礦井頂板支撐系統(tǒng)中，常用電鍍硬鉻作為液壓支柱的防腐蝕耐磨損保護(hù)層。然而，由于硬鉻表面裂紋、多孔，使用中經(jīng)常因?yàn)楦g嚴(yán)重以致液壓支柱被咬死而無法動(dòng)作。高壓液壓缸的這種問題更加嚴(yán)重。在高壓工作下，鍍層受到拉伸，使得高內(nèi)應(yīng)力的硬鉻層的裂紋進(jìn)一步加劇。這種情況下，采用25um厚的壓應(yīng)力的高磷化學(xué)鍍鎳層做保護(hù)，當(dāng)液壓支柱受高壓拉伸時(shí)，化學(xué)鍍鎳層不會(huì)產(chǎn)生裂紋，并能夠經(jīng)受住地下煤礦環(huán)境的腐蝕與磨損。</p><p style="text-indent:25px">化學(xué)鍍鎳接觸鍍沉積法：將欲鍍的金屬與另一種金屬或另一塊相同金屬接觸，并沉浸在沉積金屬的鹽溶液中的沉積法。當(dāng)欲鍍的導(dǎo)電基底表面與比溶液中待沉積的金屬更為活潑的金屬接觸時(shí)，便構(gòu)成接觸沉積。在基底和接觸金屬之間形成了原電池對，其中接觸金屬是陽極，發(fā)生溶解，而欲鍍基底起陰極的作用，金屬便沉積到它的上面。此法與電沉積反應(yīng)相同，所不同的是電流來自化學(xué)反應(yīng)，而不是由外電源提供。此法幾乎沒有實(shí)用意義，但是，它對在無催化活性基底上引發(fā)化學(xué)沉積，起到“反應(yīng)起動(dòng)劑”的作用上，具有重要意義?；瘜W(xué)鍍鎳的技術(shù)工藝處理后的金屬表面抗腐蝕性特別優(yōu)良。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江化學(xué)鍍鎳加工,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783170947266/6080931.png"></div><p style="text-indent:25px">化學(xué)鍍鎳技術(shù)在微電子器件制造業(yè)中應(yīng)用的增長十分迅速。超大規(guī)模集成電路多層芯片的互連和導(dǎo)通孔的充填整平化工藝中，采用了選擇性的鎳磷合金化學(xué)鍍技術(shù)；其產(chǎn)品均通過了抗剪切強(qiáng)度、抗拉強(qiáng)度、高低溫循環(huán)和各項(xiàng)電性能的試驗(yàn)。實(shí)踐說明，化學(xué)鍍鎳技術(shù)的應(yīng)用提高了微電子器件制造工藝的技術(shù)經(jīng)濟(jì)性和產(chǎn)品的可靠性。鑄造用模型和芯盒通常為鑄鐵或鑄鋁件，在使用過程中遭受磨料磨損，報(bào)廢很快。采用化學(xué)鍍鎳鎳表面保護(hù)之后，鑄造模型和型芯盒的質(zhì)量上等級，使用壽命明顯提高?；瘜W(xué)鍍鎳在90℃的酸性溶液或接近常溫的中性溶液、堿性溶液中進(jìn)行作業(yè)。化學(xué)鍍鎳是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。浙江化學(xué)鍍鎳加工</p><p style="text-indent:25px">化學(xué)鍍鎳的技術(shù)工藝處理后的金屬表面為非晶態(tài)鍍層。浙江化學(xué)鍍鎳加工</p><p style="text-indent:25px">汽車工業(yè)利用化學(xué)鍍鎳層非常均勻的優(yōu)點(diǎn)，在形狀復(fù)雜的零件上，如齒輪、散熱器和噴油嘴上采用化學(xué)鍍工藝保護(hù)。鍍上10um左右的化學(xué)鍍鎳層的鋁質(zhì)散熱器具有良好的釬焊性。齒輪上化學(xué)鍍后尺寸誤差十分容易地保持在±0.3～0.5um。而如果采用電鍍工藝，則必須鍍后還要進(jìn)行機(jī)加工才能達(dá)到合格的工差范圍。用在噴油器上的化學(xué)鍍鎳層，能夠提供良好的抗燃油腐蝕和磨損性能。通常，燃油腐蝕和磨損會(huì)導(dǎo)致噴油孔的擴(kuò)大，因此噴油量增大，使汽車發(fā)動(dòng)機(jī)的馬力超出設(shè)計(jì)標(biāo)準(zhǔn)，加快發(fā)動(dòng)機(jī)的損壞?；瘜W(xué)鍍鎳層可以有效地防止噴油器的腐蝕、磨損，提高發(fā)動(dòng)機(jī)的可靠性和使用壽命。浙江化學(xué)鍍鎳加工</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2877028.html</p></div></div></div></div></div><div id="mz8oqmi" class="page-right twoColRt"><div id="7hgs28j" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="cfcitpl" 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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