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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>太倉鋁化學鍍鎳加工,化學鍍鎳</p><p><span>***更新：</span>2021-02-03 08:13:38</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="7feq77m" 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="mawdkwn" class="page-proshow02"><p class="title">詳細說明</p><div id="8fqhyzq" class="box"><p><p style="text-indent:25px">化學鍍就是在不通電的情況下，利用氧化還原反應在具有催化表面的鍍件上，太倉鋁化學鍍鎳加工，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)?；瘜W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，太倉鋁化學鍍鎳加工。使用范圍是非常普遍的?；瘜W鍍是在催化劑Fe的催化作用下，太倉鋁化學鍍鎳加工，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行還原反應而沉積鎳，其本身氧化成氫氣。用化學鍍鎳沉積的鍍層，有一些不同于電沉積層的特性。太倉鋁化學鍍鎳加工</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太倉鋁化學鍍鎳加工,化學鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783068779297/3182023.png"></div><p style="text-indent:25px">化學鍍鎳層的耐腐蝕性：化學鍍Ni—P二元合金層均勻致密，具有較好的耐蝕性，但不能滿足使用者的要求，為了改進二元化學鍍鎳的耐蝕性，人們在原有二元系基礎(chǔ)上引進了某種新的金屬組份，形成了三元合金鍍層，這類鍍層具有更優(yōu)良的耐蝕性。在10%H2SO4溶液中，Ni—Cu—P合金鍍層的耐蝕性遠比Ni—P合金鍍層好，在含磷量相近的情況下，鍍層含銅量越高耐蝕性越好。Ni—W—P合金鍍層與基體結(jié)合牢固，結(jié)構(gòu)致密，在液/固雙相流腐蝕介質(zhì)中具有優(yōu)良的抗沖刷腐蝕性能，另外，Ni—W—P合金鍍層比Ni—P合金層具有更高的穩(wěn)定性。實驗表明，Ni—Mo—P合金鍍層為非晶態(tài)結(jié)構(gòu)，該鍍層具有很好的耐有機溶劑、有機酸和鹽的性質(zhì)。太倉鋁化學鍍鎳加工化學鍍鎳可以選用多種還原劑，工業(yè)上應用比較普遍的是以次磷酸鈉為還原劑的化學鍍鎳工藝。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太倉鋁化學鍍鎳加工,化學鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783198964844/5678764.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。</p><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硬度高、耐磨性良好。電鍍鎳層的硬度*為l60～180HV，而化學鍍鎳層的硬度一般為400～700HV，經(jīng)適當熱處理后還可進一步提高到接近甚至超過鉻鍍層的硬度，故耐磨性良好，更難得的是化學鍍鎳層兼?zhèn)淞肆己玫哪臀g與耐磨性能。②由于化學鍍鎳層含磷（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，化學鍍鎳的工業(yè)應用及工藝設(shè)計具有多樣性和**性的特點?；瘜W鍍鎳的鍍層在均勻性、耐蝕性、硬度、可焊性、裝飾性上都顯示出優(yōu)越性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="太倉鋁化學鍍鎳加工,化學鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783170947266/6080931.png"></div><p style="text-indent:25px">要怎么在不同基材上使用化學鍍鎳?對于不同的基材應采取相應的措施如下：基體本身具有催化作用的如鐵、鎳等可直接進行化學鍍鎳。電位比鎳負的鋁、鎂等金屬比較好的是在化學鍍鎳前進行浸鋅處理，而后再進行化學鍍鎳。不銹鋼基體應先閃鍍一層鎳，再進行化學鍍鎳。電位較正且無催化作用的金屬，如銅及其合金、**度鐵合金等，應先用經(jīng)過預處理的鐵絲或鋁絲接觸零件表面，使之變成短路電池得以化學鍍鎳順利進行反應。非金屬材料如陶瓷、玻璃、塑膠等，應經(jīng)過進行仔細的粗化和活化工序，方可順利進行化學鍍鎳?；瘜W鍍鎳是鍍鎳中發(fā)展比較快的一種?；瘜W鍍鎳添加劑價格</p><p style="text-indent:25px">化學鍍鎳在pH值為5．5～7時，鍍液中亞磷酸鹽的除去率在95%以上。太倉鋁化學鍍鎳加工</p><p style="text-indent:25px">化學鍍鎳在金屬表面的應用工藝：阻截除油。阻截除油是一種有別于“吸咐除油”的全新升級油水分離器技術(shù)性重要理念，著眼于用有機化學方式產(chǎn)品研發(fā)出的一種復合型改性材料特材，這類室內(nèi)空間態(tài)阻截膜處在水飽和狀態(tài)的工作狀況下，具備下列獨特基本功能:對油和水具備極其比較敏感的辨別區(qū)別工作能力;具備回絕燃料黏附的反跳工作能力;向阻截膜施加單邊壓力時能上水粒有導向性地換置根據(jù)，進而主要表現(xiàn)出“水淋油但是”的獨特作用天然屏障效用。金屬表面處理劑的堿性清洗劑硅酸鈉有膠溶、分散等作用，清洗效果較好。太倉鋁化學鍍鎳加工</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3140169.html</p></div></div></div></div></div><div id="yelnzqw" class="page-right twoColRt"><div id="ftzl2p8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8j88xyc" class="recomPic likePro"><a 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