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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>?蘇州化學(xué)鍍鎳液制作方法誠(chéng)信互利上海昊琳化工供應(yīng)</p><div id="shzryah" class="leftbox clearfix"><h1>蘇州化學(xué)鍍鎳液制作方法誠(chéng)信互利上海昊琳化工供應(yīng)</h1><div id="o7ikh77" class="proBig"><div id="3lyvn8k" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333783220722656/3167001.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mg28vsp" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333783220722656/3167001.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="crtqsur" 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>蘇州化學(xué)鍍鎳液制作方法,化學(xué)鍍鎳</p><p><span>***更新：</span>2021-02-07 09:14:50</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="o3ov7c2" 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="mg7wykr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="qvx72wl" class="box"><p><p style="text-indent:25px">化學(xué)鍍鎳初期和末期反應(yīng)速度管理方法是在化學(xué)鍍鎳沉積的過程中會(huì)產(chǎn)生亞磷酸鹽的副產(chǎn)物，并且隨著生產(chǎn)的進(jìn)行，亞磷酸鹽的濃度也會(huì)越來越高。于是反應(yīng)速度受生成物濃度的升高而降低。因此，反應(yīng)初期和反應(yīng)末期的沉積速度會(huì)產(chǎn)生較大的偏差。下面就講講如何來解決該問題：留存母液的方法：將前次換槽的舊液保留一些，作為新開槽的母液。這樣就可以避免初期反應(yīng)速度過快的問題，并且也將新槽與舊槽之間的活性縮?。恢鸩缴逷H值：開槽初期的PH值可以設(shè)定在4.8，蘇州化學(xué)鍍鎳液制作方法，然后根據(jù)需要將PH值逐步升高，壽命結(jié)束前升至5.2左右；逐步升高Ni離子的濃度：在初期鎳離子控制在4，蘇州化學(xué)鍍鎳液制作方法，蘇州化學(xué)鍍鎳液制作方法.5g/l左右，隨MTO數(shù)的增加再逐步提高其濃度。化學(xué)鍍鎳可以在金屬表面施鍍。蘇州化學(xué)鍍鎳液制作方法</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州化學(xué)鍍鎳液制作方法,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783220722656/3167001.png"></div><p style="text-indent:25px">化學(xué)鍍鎳的物理特征：（1）鍍層厚度均勻，化學(xué)鍍液的分散程度接近100%?；瘜W(xué)鍍本身是一個(gè)自催化的氧化還原過程，只要催化基體與溶液接觸到就可以施鍍，幾乎是基體形狀的一個(gè)復(fù)制，達(dá)到仿形的程度，不會(huì)像電鍍一樣，出現(xiàn)由于電力線分布不均勻而引起的鍍層厚度不均的現(xiàn)象。（2）化學(xué)鍍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。（3）化學(xué)鍍?cè)O(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。紹興光潔度化學(xué)鍍鎳化學(xué)鍍鎳溶液中的Ni2+靠還原劑次磷酸鈉放出的原子態(tài)活性氫還原為金屬鎳，而不是直接作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州化學(xué)鍍鎳液制作方法,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783030097656/6476087.png"></div><p style="text-indent:25px">化學(xué)鍍鎳技術(shù)是采用金屬鹽和還原劑，在材料表面上發(fā)生自催化反應(yīng)獲得鍍層的方法。到目前為止，化學(xué)鍍鎳是國(guó)外發(fā)展較快的表面處理工藝之一，且應(yīng)用范圍也非常廣?；瘜W(xué)鍍鎳之所以得到迅速發(fā)展，是由于其優(yōu)越的工藝特點(diǎn)所決定?；瘜W(xué)鍍鎳層的工藝特點(diǎn)：1、不需要一般電鍍所需的直流電機(jī)或控制設(shè)備，熱處理溫度低，只要在400℃以下經(jīng)不同保溫時(shí)間后，可得到不同的耐蝕性和耐磨性，因此，它不存在熱處理變形的問題，特別適用于加工一些形狀復(fù)雜，表面要求耐磨和耐蝕的零部件等。2、化學(xué)沉積層的厚度可控，其工藝簡(jiǎn)單，操作方便，溫度低，成本比其它表面處理防護(hù)低，適用于在中、小型工廠或小批量生產(chǎn)。</p><p style="text-indent:25px">化學(xué)鍍鎳的廢液處理：鎳離子?；瘜W(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，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，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)鍍鎳的技術(shù)工藝處理后的金屬表面摩擦系數(shù)小。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州化學(xué)鍍鎳液制作方法,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783149238281/5920410.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，如果沖程發(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，有著優(yōu)越的性能?；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。紹興光潔度化學(xué)鍍鎳</p><p style="text-indent:25px">化學(xué)鍍鎳在pH值為5．5～7時(shí)，鍍液中亞磷酸鹽的除去率在95%以上。蘇州化學(xué)鍍鎳液制作方法</p><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(jì)具有多樣性和**性的特點(diǎn)。蘇州化學(xué)鍍鎳液制作方法</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3201097.html</p></div></div></div></div></div><div id="pe8zwya" class="page-right twoColRt"><div id="2tqik3f" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lvxz2v3" 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) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="3qxz2vf" 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