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id="crtiur3" class="proBig"><div id="wkmoqcb" 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="8shoqxz" 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="j2yvxea" 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>海寧化學(xué)鍍鎳工廠,化學(xué)鍍鎳</p><p><span>***更新：</span>2021-01-29 00:22:56</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="crya8k3" 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(hào)</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="zj2jkwy" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="lamgkbi" class="box"><p><p style="text-indent:25px">化學(xué)鍍鎳在金屬表面的應(yīng)用工藝：阻截除油，海寧化學(xué)鍍鎳工廠。阻截除油是一種有別于“吸咐除油”的全新升級(jí)油水分離器技術(shù)性重要理念，著眼于用有機(jī)化學(xué)方式產(chǎn)品研發(fā)出的一種復(fù)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，海寧化學(xué)鍍鎳工廠，具備下列獨(dú)特基本功能:對(duì)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(shí)能上水粒有導(dǎo)向性地?fù)Q置根據(jù)，進(jìn)而主要表現(xiàn)出“水淋油但是”的獨(dú)特作用天然屏障效用，海寧化學(xué)鍍鎳工廠。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?；瘜W(xué)鍍鎳一般將被鍍制件浸入以硫酸鎳、乙酸鈉和硼酸所配成的混合溶液內(nèi)。海寧化學(xué)鍍鎳工廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海寧化學(xué)鍍鎳工廠,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783030097656/6476087.png"></div><p style="text-indent:25px">化學(xué)鍍鎳的機(jī)理特點(diǎn)：原子氫理論。原子氫理論認(rèn)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。首先是在加熱條件下，次磷酸鈉在催化表面上水解釋放出原子氫，或由H2PO2-催化脫氫產(chǎn)生原子氫，即然后，吸附在活性金屬表面上的H原子還原Ni2+為金屬Ni沉積于鍍件表面。同時(shí)次磷酸根被原子氫還原出磷，或發(fā)生自身氧化還原反應(yīng)沉積出磷，H2的析出既可以是由H2POf水解產(chǎn)生，也可以是由原子態(tài)的氫結(jié)合而成。高磷化學(xué)鍍鎳液生產(chǎn)廠化學(xué)鍍鎳中用得比較多的鍍層金屬則是金和銅。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海寧化學(xué)鍍鎳工廠,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783210429687/6028701.png"></div><p style="text-indent:25px">化學(xué)鍍鎳技術(shù)在jun隊(duì)上得到普遍的應(yīng)用，突出的例子如航空母艦上飛機(jī)彈射機(jī)罩和軌道的化學(xué)鍍鎳保護(hù)。彈射機(jī)的工作環(huán)境非常惡劣，飛機(jī)發(fā)動(dòng)時(shí)的高溫氣流沖刷軌道，彈射時(shí)的巨大的作用力，海洋氣候條件的腐蝕，使得彈射系統(tǒng)*能使用6～12個(gè)月?，F(xiàn)采用的表面處理工藝是：正確前處理后的彈射機(jī)罩，在電鍍鎳后，化學(xué)鍍鎳100um，然后再電鍍鎘12.5um，并經(jīng)鉻酸鈍化。這樣的復(fù)合涂覆保護(hù)層，具有很好的耐磨和抗微振磨損性能，彈射系統(tǒng)的使用壽命可延長(zhǎng)至14～18年，即增加18倍。</p><p style="text-indent:25px">化學(xué)鍍鎳沉積的特性：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?；瘜W(xué)鍍鎳若廢液中含有較多的次磷酸根，可添加適當(dāng)?shù)难趸瘎ㄈ绺咤i酸鉀，雙氧水等）除去。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海寧化學(xué)鍍鎳工廠,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783243505859/8660814.png"></div><p style="text-indent:25px">化學(xué)鍍鎳的技術(shù)特性及作用:1、結(jié)合強(qiáng)度大：本技術(shù)處理后的合金層與金屬基件結(jié)合強(qiáng)度增大，一般在350-400Mpa條件下不起皮、不脫落、無(wú)氣泡，與鋁的結(jié)合強(qiáng)度可達(dá)102-241Mpa。2、仿型性好：在尖角或邊緣突出部分，沒(méi)有過(guò)份明顯的增厚，即有很好的仿型性，鍍后不需磨削加工，沉積層的厚度和成份均勻。3、工藝技術(shù)高適應(yīng)性強(qiáng)：在盲孔、深孔、管件、拐角、縫隙的內(nèi)表面可得到均勻鍍層，所以無(wú)論您的產(chǎn)品結(jié)構(gòu)有多么復(fù)雜，本技術(shù)處理起來(lái)均能得心應(yīng)手，絕無(wú)漏鍍之處。8、低電阻，可焊性好。4、耐高溫：該催化合金層熔點(diǎn)為850-890度?；瘜W(xué)鍍鎳廢液的pH值在7左右時(shí)，亞磷酸鈣的溶解度將急劇下降。海寧化學(xué)鍍鎳工廠</p><p style="text-indent:25px">化學(xué)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。海寧化學(xué)鍍鎳工廠</p><p style="text-indent:25px">化學(xué)鍍鎳不*可以在金屬表面施鍍，通過(guò)特殊的活化、敏化處理，還能夠在非金屬表面上進(jìn)行。化學(xué)鍍鎳設(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。化學(xué)鍍鎳的結(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。化學(xué)鍍鎳硬度高，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?；瘜W(xué)鍍鎳耐腐蝕強(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。海寧化學(xué)鍍鎳工廠</p></p><br /><p>文章來(lái)源地址: 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