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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hrdac2r" 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="3ctqnug" 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>泰興銅件化學(xué)鍍鎳,化學(xué)鍍鎳</p><p><span>***更新：</span>2021-01-29 01:13:36</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="wq2788y" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="lqnuqsj" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="shjqszb" class="box"><p><p style="text-indent:25px">化學(xué)鍍鎳的物理特征：（1）鍍層厚度均勻，泰興銅件化學(xué)鍍鎳，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(guò)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，泰興銅件化學(xué)鍍鎳，出現(xiàn)由于電力線(xiàn)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*可以在金屬表面施鍍，通過(guò)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，泰興銅件化學(xué)鍍鎳，把待鍍零件浸入在鍍液中即可?；瘜W(xué)鍍鎳適用于陶瓷鍍鎳，玻璃鍍鎳，金剛石鍍鎳，碳片鍍鎳，塑料鍍鎳，樹(shù)脂鍍鎳等等。泰興銅件化學(xué)鍍鎳</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰興銅件化學(xué)鍍鎳,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783149238281/5920410.png"></div><p style="text-indent:25px">化學(xué)鍍鎳在鋁及其合金化學(xué)氧化金屬表面的處理工藝：有機(jī)化學(xué)氧化是無(wú)需外地人電流量而*把制品嵌入適度水溶液中,使其表面轉(zhuǎn)化成人力氧化膜。一般是將壓鑄件浸在帶有堿溶液和堿土金屬的三氧化鉻水溶液中,鋁和水溶液相互之間功效,迅速轉(zhuǎn)化成AL203和AL(OH)3的塑料薄膜。這類(lèi)氧化膜具備較高的吸咐能力,一般工業(yè)生產(chǎn)上做為表面噴涂的較底層,經(jīng)有機(jī)化學(xué)氧化后開(kāi)展噴涂,能夠極大的地提升鋁以及臺(tái)金外型裝飾設(shè)計(jì)件的搞蝕能力,使建筑涂料的維持性提高。鋁以及合金有機(jī)化學(xué)氧化的優(yōu)勢(shì)主要是生產(chǎn)制造高效率、低成本、不耗費(fèi)電磁能,不需專(zhuān)業(yè)機(jī)器設(shè)備,合適于批量生產(chǎn)。慈溪化學(xué)鍍鎳液檢測(cè)化學(xué)鍍鎳鍍層的光澤度高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰興銅件化學(xué)鍍鎳,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783296416016/1330118.png"></div><p style="text-indent:25px">化學(xué)鍍鎳的分類(lèi)：按鍍液的PH值分類(lèi)有酸性、中性和堿性三類(lèi)。按沉積溫度分類(lèi)有低溫、中溫、高溫三類(lèi)。按合金成分分類(lèi)有低磷、中磷和高磷三類(lèi)。按所用還原劑分類(lèi)有Ni-P、Ni-B等?；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（濃度為6mol/L）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。為提高鍍層的質(zhì)量、鍍液的穩(wěn)定性及金屬鎳的沉積速度，化學(xué)鍍鎳液中都添加各種絡(luò)合劑。若廢液中含有蘋(píng)果酸、酒石酸和檸檬酸等絡(luò)合劑時(shí)，可使用CaO調(diào)節(jié)廢液的pH值，使這些有機(jī)酸生成相應(yīng)的鈣鹽沉淀除去，由于蘋(píng)果酸鈣的溶解度比較大。</p><p style="text-indent:25px">在食品加工過(guò)程中，會(huì)涉及鹽水、亞硝酸鹽、檸檬酸、天然木材的煙薰，揮發(fā)性有機(jī)酸等腐蝕介質(zhì)等問(wèn)題；食品加工溫度范圍為60～200，生產(chǎn)環(huán)境中相對(duì)濕度很高；在這樣的條件下，食品加工設(shè)備存在著金屬腐蝕、疲勞和磨損等問(wèn)題。對(duì)于接觸食品的金屬表面，傳統(tǒng)的保護(hù)方式是電鍍硬鉻；可是，在含氯離子酸性介質(zhì)中，鍍鉻層的耐蝕年并不好；然而，化學(xué)鍍鎳在均鍍能力、高耐蝕性、防粘、脫模性等方面具有明顯的優(yōu)勢(shì)。揉面機(jī)上與食品接觸的零件采用的化學(xué)鍍鎳就是應(yīng)用成功的實(shí)例之一；其他在食品充氣裝罐機(jī)、螺桿送料機(jī)、拌料鍋、食品模具、烤盤(pán)、干燥箱，面包保溫爐等食品機(jī)械上越多地采用了化學(xué)鍍鎳?；瘜W(xué)鍍鎳的技術(shù)工藝處理后的金屬表面耐磨性能高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="泰興銅件化學(xué)鍍鎳,化學(xué)鍍鎳" src="https://tyunfile.71360.com/UploadFile/haolin123/637333783243505859/8660814.png"></div><p style="text-indent:25px">化學(xué)鍍鎳置換鍍沉積法：一種金屬浸在第二種金屬的金屬鹽溶液中，第一種金屬的表面上發(fā)生局部溶解，同時(shí)在其表面自發(fā)沉積上第二種金屬。在離子交換情況下，基底金屬本身就是還原劑。使用非常普遍的基底金屬是銅、鐵和鎳，而用得較多的鍍層金屬則是金和銅。如將一只鐵釘浸在硫酸銅溶液中，鐵釘上就鍍上薄薄一層銅。但它的實(shí)際應(yīng)用是有限的，因?yàn)榛捉饘俚谋砻嬉坏┍蝗芤褐械慕饘俑采w，過(guò)程馬上停止。所以其較大厚度是很小的，而且結(jié)合力沒(méi)有真正的化學(xué)鍍那么好。由于鍍層質(zhì)量差，厚度有限，所以應(yīng)用非常有限。迄今為止，化學(xué)鍍鎳的發(fā)展已有50多年的歷史。泰興銅件化學(xué)鍍鎳</p><p style="text-indent:25px">化學(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。泰興銅件化學(xué)鍍鎳</p><p style="text-indent:25px">航空航天工業(yè)為化學(xué)鍍鎳的使用大戶(hù)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*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。泰興銅件化學(xué)鍍鎳</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3054765.html</p></div></div></div></div></div><div id="nc2994n" class="page-right twoColRt"><div id="7qcoqxz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pzwyqcj" 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" 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