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clearfix"><h1>徐州化學(xué)鍍鎳?yán)匣禾幚?歡迎咨詢上海昊琳化工供應(yīng)</h1><div id="75covmd" class="proBig"><div id="pewdar8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333783030097656/6476087.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="lkbiubd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333783030097656/6476087.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gfwyuwd" 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>徐州化學(xué)鍍鎳?yán)匣禾幚?化學(xué)鍍鎳</p><p><span>***更新：</span>2021-02-05 02:12:01</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="bl7r8i8" 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="7yrjvx3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ktvx3ih" 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，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，徐州化學(xué)鍍鎳?yán)匣禾幚怼o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，化學(xué)鍍鎳層是鎳硼合金鍍層，硼的含量為1%～7%，徐州化學(xué)鍍鎳?yán)匣禾幚?。只有以肼作還原劑得到的鍍層才是純鎳層，徐州化學(xué)鍍鎳?yán)匣禾幚?，含鎳量可達(dá)到99．5%以上。②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。化學(xué)鍍鎳是新近發(fā)展起來的一門新技術(shù)。徐州化學(xué)鍍鎳?yán)匣禾幚?/p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州化學(xué)鍍鎳?yán)匣禾幚?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)品或材料的各個組成成分進(jìn)行精確分析的過程?；瘜W(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)，完成對產(chǎn)品成分分析，達(dá)到產(chǎn)品改進(jìn)，配方分析，模仿生產(chǎn)的目的。在這個過程中技術(shù)人員除了依靠先進(jìn)設(shè)備支持外，同時還必須具有豐富的行業(yè)知識和理論知識。常熟化學(xué)鍍鎳銅磷化學(xué)鍍鎳的技術(shù)工藝處理后的金屬表面可替代硬鉻使用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州化學(xué)鍍鎳?yán)匣禾幚?化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783198964844/5678764.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。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)常因為腐蝕嚴(yán)重以致液壓支柱被咬死而無法動作。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，化學(xué)鍍鎳層不會產(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)鍍鎳的物理特征：傳統(tǒng)上，化學(xué)鍍作為一種表面處理方法應(yīng)歸屬于電鍍，是電鍍的一個鍍種。但化學(xué)鍍不同于電鍍，主要是因為化學(xué)鍍不需要外加電源，而且操作方法與不同于電鍍，其特點如下：（1）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。（2）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。（3）耐腐蝕強，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)鍍鎳在除去鎳離子時加入的CaO會使廢液的pH值增加。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="徐州化學(xué)鍍鎳?yán)匣禾幚?化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783093632812/9233108.png"></div><p style="text-indent:25px">化學(xué)鍍鎳沉積的特性：1、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。2、由于化學(xué)鍍鎳層含磷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。所以，化學(xué)鍍鎳的工業(yè)應(yīng)用及工藝設(shè)計具有多樣性和**性的特點?；瘜W(xué)鍍鎳的反應(yīng)機(jī)理，普遍被接受的是“原子氫理論”和“氫化物理論”。徐州化學(xué)鍍鎳?yán)匣禾幚?/p><p style="text-indent:25px">化學(xué)鍍鎳廢液的pH值在7左右時，亞磷酸鈣的溶解度將急劇下降。徐州化學(xué)鍍鎳?yán)匣禾幚?/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，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)起動劑”的作用上，具有重要意義。徐州化學(xué)鍍鎳?yán)匣禾幚?/p></p><br /><p>文章來源地址: 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