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class="container clearfix tcPro"><section class="home-main container clearfix"><div id="bjvm2ai" class="twoCol"><div id="srn37vw" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<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(xué)試劑</a>?<a href="http://www.cdcfah.com/cp/third-hxsj_qthxsj/">其他化學(xué)試劑</a>?南通化學(xué)鍍鎳供應(yīng)商質(zhì)量保證上海昊琳化工供應(yīng)</p><div id="2qmimmv" class="leftbox clearfix"><h1>南通化學(xué)鍍鎳供應(yīng)商質(zhì)量保證上海昊琳化工供應(yīng)</h1><div id="qkrokqc" class="proBig"><div id="22hy8pb" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333783149238281/5920410.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ibszlne" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333783149238281/5920410.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8g3ulco" 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>南通化學(xué)鍍鎳供應(yīng)商,化學(xué)鍍鎳</p><p><span>***更新：</span>2021-01-17 07:12:57</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="nco2j8j" 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="hgxelhn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zt33drh" class="box"><p><p style="text-indent:25px">化學(xué)鍍鎳的廢液處理：鎳離子。化學(xué)鍍鎳廢液中，若不存在絡(luò)合劑或絡(luò)合劑的量較少時(shí)，可直接采用氫氧化鈉調(diào)節(jié)pH值，南通化學(xué)鍍鎳供應(yīng)商，根據(jù)廢液中鎳離子的濃度，加入適量的NaOH，使鎳離子沉淀為Ni(OH)2除去。對(duì)于有絡(luò)和劑廢液的除鎳，首先利用CaO調(diào)節(jié)廢液的pH值在8左右，除去大部分的有機(jī)酸絡(luò)合劑，然后在廢液中加入CaO或NaOH，調(diào)至廢液的pH值為11～12，使廢液中的大部分鎳離子和其他重金屬離子發(fā)生沉淀反應(yīng)，再加入適量的高分子絮凝劑，加速不溶物的沉降，在沉降過程中，加入適宜和適量的氧化劑，南通化學(xué)鍍鎳供應(yīng)商，南通化學(xué)鍍鎳供應(yīng)商，以除去廢液中的次、亞磷酸鹽，有利于鎳離子的沉淀并降低廢水的化學(xué)耗氧量（COD）?；瘜W(xué)鍍鎳鍍層的表面硬度高。南通化學(xué)鍍鎳供應(yīng)商</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通化學(xué)鍍鎳供應(yīng)商,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783149238281/5920410.png"></div><p style="text-indent:25px">上海昊琳化工有限公司小編介紹，化學(xué)鍍鎳不僅可以在金屬表面施鍍，通過特殊的活化、敏化處理，也可以在非金屬表面上進(jìn)行?；瘜W(xué)鍍鎳設(shè)備簡(jiǎn)單，不需要電源及陽極，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?；瘜W(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。常州化學(xué)鍍鎳鍍液配方化學(xué)鍍鎳工藝技術(shù)高適應(yīng)性強(qiáng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通化學(xué)鍍鎳供應(yīng)商,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783220722656/3167001.png"></div><p style="text-indent:25px">用次磷酸鹽作還原劑的化學(xué)鍍鎳溶液中鍍得的鍍層含有4%～15%的磷，是一種鎳磷合金，以硼氫化物或胺基硼烷作還原劑得到的鍍層才是純鎳層，含鎳量可達(dá)99.5%以上。剛沉積出來的化學(xué)鍍鎳層是無定型的，呈非晶型薄片狀結(jié)構(gòu)物質(zhì)。鍍層中磷含量主要決定于溶液的pH值，隨著pH值降低，磷含量增大。常規(guī)的酸性化學(xué)鍍鎳溶液中沉積出的鍍層含磷量為7%～12%，而堿性溶液中沉積的鎳層含磷量為4%～7%。此外，溶液的組成及各組分的含量和它們的相對(duì)比率，以及溶液的工作溫度等都對(duì)含磷量有一定的影響。</p><p style="text-indent:25px">化學(xué)鍍鎳是用還原劑把溶液中的鎳離子還原沉積在具有催化活性的表面上?；瘜W(xué)鍍鎳可以選用多種還原劑，工業(yè)上應(yīng)用比較普遍的是以次磷酸鈉為還原劑的化學(xué)鍍鎳工藝，其反應(yīng)機(jī)理，普遍被接受的是“原子氫理論”和“氫化物理論”。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H 2PO2-催化脫氫產(chǎn)生原子氫，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?；瘜W(xué)鍍鎳是將基體金屬和外界腐蝕環(huán)境隔絕而達(dá)到防護(hù)目的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南通化學(xué)鍍鎳供應(yīng)商,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783093632812/9233108.png"></div><p style="text-indent:25px">航空航天工業(yè)為化學(xué)鍍鎳的使用大戶之一，為減輕重量，航空工業(yè)大量使用鋁合金件，經(jīng)化學(xué)鍍鎳表面強(qiáng)化后不僅耐蝕、耐磨，而且可焊，如沖程發(fā)動(dòng)機(jī)的活塞頭經(jīng)化學(xué)鍍鎳后提高了使用壽命。其他還有鈦合金件、鈹合金件均采用低應(yīng)力和壓應(yīng)力的化學(xué)鍍鎳表面保護(hù)等措施。鎳+鉈+硼三元合金化學(xué)鍍（NTB）被指定為噴氣發(fā)動(dòng)機(jī)上160多種零件的表面強(qiáng)化工藝，以抗擦傷和微動(dòng)磨損，宇航系統(tǒng)普遍使用著金屬光鏡，其基體為強(qiáng)度高、重量輕的鈹或鋁，經(jīng)**化學(xué)鍍鎳表面強(qiáng)化，這種含磷量為12.2%～12.7%的化學(xué)鍍鎳可拋光至9，如此高的精度在需要低慣性的宇宙空間里，有著較好的性能?；瘜W(xué)鍍鎳鍍層厚度均勻，化學(xué)鍍液的分散程度接近100%。常州化學(xué)鍍鎳硬度</p><p style="text-indent:25px">化學(xué)鍍鎳廢液中的鎳及大部分有機(jī)酸被沉淀除去后，廢液還需要進(jìn)行深度處理。南通化學(xué)鍍鎳供應(yīng)商</p><p style="text-indent:25px">由于模具幾何形狀復(fù)雜，當(dāng)采用電鍍方法對(duì)模具表面進(jìn)行強(qiáng)化時(shí)，為了使各個(gè)面都能夠鍍上，必須設(shè)計(jì)安裝復(fù)雜的輔**極和掛具；而且，還必須要進(jìn)行鍍后機(jī)械加工，才能保證尺寸精度和表面粗糙度的要求；而且，化學(xué)鍍鎳層具有較低的摩擦系數(shù)和突出的脫模性能，使其成為較為經(jīng)濟(jì)有效的模具表面處理技術(shù)之一。紡織機(jī)械轉(zhuǎn)速很高，各種纖維紗線對(duì)于機(jī)械零件的磨損十分嚴(yán)重?；瘜W(xué)鍍鎳，特別是人造多晶金剛石復(fù)合化學(xué)鍍技術(shù)，比較成功地解決了紡織機(jī)械零件的磨損問題?；瘜W(xué)鍍鎳硬度高、耐磨性良好。南通化學(xué)鍍鎳供應(yīng)商</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2884634.html</p></div></div></div></div></div><div id="istkbhi" class="page-right twoColRt"><div id="enzvm2k" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="azgnz83" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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