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clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_huagong/">化工</a>?<a href="http://www.cdcfah.com/cp/second-huagong_hxsj/">化學試劑</a>?<a href="http://www.cdcfah.com/cp/third-hxsj_qthxsj/">其他化學試劑</a>?嘉興提供化學鍍鎳磷添加劑誠信為本上海昊琳化工供應(yīng)</p><div id="y73p8fh" class="leftbox clearfix"><h1>嘉興提供化學鍍鎳磷添加劑誠信為本上海昊琳化工供應(yīng)</h1><div id="qzmti8h" class="proBig"><div id="8e3etse" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333782859960937/1102100.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="t7v4ikw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333782859960937/1102100.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="k3uoqcz" 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>嘉興提供化學鍍鎳磷添加劑,化學鍍鎳</p><p><span>***更新：</span>2021-01-16 05:14:59</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="bfhjrw2" 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: </span>021-59220920</p><p><span>地址: </span>白鶴鎮(zhèn)白石公路1360路28號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ir72vif" class="page-proshow02"><p class="title">詳細說明</p><div id="vjl8q8l" class="box"><p><p style="text-indent:25px">化學鍍鎳是不用外來電流，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。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，嘉興提供化學鍍鎳磷添加劑、乙酸鈉和硼酸所配成的混合溶液內(nèi)，嘉興提供化學鍍鎳磷添加劑，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，以加速化學鍍鎳，嘉興提供化學鍍鎳磷添加劑?；瘜W鍍鎳的電流來自化學反應(yīng)，而不是由外電源提供。嘉興提供化學鍍鎳磷添加劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興提供化學鍍鎳磷添加劑,化學鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333782859960937/1102100.png"></div><p style="text-indent:25px">上海昊琳化工有限公司小編介紹，若化學鍍鎳廢液中的鎳及大部分有機酸被沉淀除去后，廢液中的COD達不到排放標準時，廢液還需要進行深度處理，在pH值大于9的條件下，通入氯氣，此時Cl2主要以CLO-的形式存在，具有較強的氧化能力，若在廢液中加入少量的銅離子作為催化劑時，廢液可以得到深度處理，COD很容易降低到（100mg/L)直接排放的標準。同時有機酸可以氧化為CO2和水，次磷酸鹽和亞磷酸鹽也容易氧化為磷酸鹽，磷酸鹽容易發(fā)生沉淀反應(yīng)而除去。原子氫理論認為，溶液中的Ni2+靠還原劑次磷酸鈉（NaH2P02）放出的原子態(tài)活性氫還原為金屬鎳，而不是H2PO2-與Ni2+直接作用。鹽城環(huán)保型化學鍍鎳錫、銅和銅合金制件要先用鋁片接觸其表面上1-3分鐘，以加速化學鍍鎳。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興提供化學鍍鎳磷添加劑,化學鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783296416016/1330118.png"></div><p style="text-indent:25px">化學鍍鎳在電子和計算機工業(yè)中應(yīng)用得非常廣，幾乎涉及到每一種化學鍍鎳技術(shù)和工藝。許多新的化學鍍鎳工藝和材料正是根據(jù)電子和計算機工業(yè)發(fā)展的需要而研制開發(fā)出來的。在技術(shù)性能方面，除要求耐蝕耐磨之外，還具有可焊接、防擴散性、電性能和磁性能等要求。電子設(shè)備的塑料外殼上鍍銅，然后化學鍍鎳，這樣的雙金屬結(jié)構(gòu)覆層，被公認為是非常有效的屏蔽方式之一。化學鍍鎳是計算機薄膜硬磁盤制造中的關(guān)鍵步驟之一。鍍層必須均勻、光滑，表面上的任何缺陷和突起不得超過0.025um。因為技術(shù)要求高所以必須使用高質(zhì)量高清潔度的**化學鍍液、全自動的施鍍控制設(shè)備和高清潔度的車間環(huán)境。計算機薄膜硬磁盤化學鍍鎳是高技術(shù)化學鍍鎳的典型表率，占有相當重要的市場份額。</p><p style="text-indent:25px">化學鍍鎳的除油技術(shù)：常見的除油方式有:有機溶劑除油、光電催化除油、有機化學除油及表活劑除油和手工制作除油及機械設(shè)備除油等。不一樣的除油方式具備不一樣的除油特性。有機溶劑除油是運用溶劑與油漬構(gòu)造上的相似度，使油漬融解于溶劑中，做到除油的目地;光電催化除油一般是以稀燒堿溶液為鋰電池電解液，以產(chǎn)品工件為電級，開展電解法解決，運用電解法時在電級表層溶解的汽體，將油漬強制從產(chǎn)品工件表層擺脫;有機化學除油是運用堿與油漬生皂化反應(yīng)開展除油;表活劑除油是運用其乳狀液、增溶、濕潤、分散化等功效做到除油的目地。機械設(shè)備和手工制作除油是顯而易見的。金屬表面處理劑的磷化液磷化是金屬材料防腐蝕的重要方法之一?；瘜W鍍鎳鍍層厚度均勻，化學鍍液的分散程度接近100%。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興提供化學鍍鎳磷添加劑,化學鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783210429687/6028701.png"></div><p style="text-indent:25px">用化學鍍鎳沉積的鍍層，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)量分數(shù)為1%～l5%，控制磷含量得到的鎳磷鍍層致密、無孔，耐蝕性遠優(yōu)于電鍍鎳。以硼氫化物或氨基硼烷為還原劑時，化學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，含鎳量可達到99．5%以上。②化學穩(wěn)定性高、鍍層結(jié)合力好。在大氣中以及在其他介質(zhì)中，化學鍍鎳層的化學穩(wěn)定性高于電鍍鎳層的化學穩(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?；瘜W鍍鎳以次亞磷酸鹽、硼氫化鈉、硼烷、肼等為還原劑，再添加各種助劑。嘉興提供化學鍍鎳磷添加劑</p><p style="text-indent:25px">化學鍍鎳鍍層的耐磨性好。嘉興提供化學鍍鎳磷添加劑</p><p style="text-indent:25px">化學鍍鎳應(yīng)用比較為量大面廣的是閥門制造業(yè)。鋼鐵制造的球閥、閘閥、旋閥、止逆閥和蝶閥等等，經(jīng)高磷化學鍍鎳25～75um，可提高耐腐蝕性和使用壽命。化工用泵化學鍍鎳的效果也同樣明顯。在苛性堿腐蝕條件下工作的閥門，應(yīng)采用鍍層含磷量1%～2%的低磷化學鍍鎳。因為在苛性堿腐蝕條件下，低磷化學鍍鎳層的年腐蝕速率約為2.5um，優(yōu)于中磷或高磷化學鍍鎳層?；瘜W鍍鎳層在強氧化性酸，如濃硝酸、濃硫酸等介質(zhì)中不耐蝕。盡管在鹽酸中的腐蝕速率低于奧氏體不銹鋼，耐蝕性仍然是不夠的。因此，對于上述強酸介質(zhì)，或者可能水解生成上述強酸的介質(zhì)中，不適于使用化學鍍鎳層。碳鋼緊固件鍍上25～50um厚的高磷化學鍍鎳層，代替不銹鋼緊固件，既克服了奧氏體不銹鋼的應(yīng)力腐蝕開裂問題，又節(jié)省了大量費用。生產(chǎn)低密度聚乙烯的壓力容器內(nèi)壁25um，以防止鐵污染和因此所造成的聚乙烯變色。如果采用不銹鋼建造，其價格大約是化學鍍方法的兩倍。嘉興提供化學鍍鎳磷添加劑</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2868531.html</p></div></div></div></div></div><div id="jif7gn3" class="page-right twoColRt"><div id="pj8yq87" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="auwyfro" 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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