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src="https://tyunfile.71360.com/UploadFile/haolin123/637333784304345703/653841.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="a2qxzi2" 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>杭州脫脂液配方,脫脂劑</p><p><span>***更新：</span>2020-08-24 05:09:38</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="icmypwi" 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="7sr2s2s" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ue7fhj3" class="box"><p><p style="text-indent:25px">金屬在進(jìn)行化學(xué)處理、電鍍或涂敷之前，要用脫脂劑脫除金屬表面上的油脂及礦物油。脫脂劑是由堿、螯合劑及表面活性劑組成。脫脂劑未使用前，脫脂劑中不含有鐵元素的；用脫脂劑清洗鍍錫基板表面油污、鐵粉雜質(zhì)后，伴隨著脫脂劑中殘鐵含量的逐漸增加，脫脂劑中清洗、脫脂能力逐漸減弱，杭州脫脂液配方。對(duì)于脫脂劑中殘鐵含量檢測(cè)，現(xiàn)有技術(shù)中通常用化學(xué)手工方法分析，因基體復(fù)雜要加入各種掩蔽劑進(jìn)行處理，步驟繁瑣，不易掌握，分析結(jié)果準(zhǔn)確性差，且檢測(cè)周期較長(zhǎng)，杭州脫脂液配方，杭州脫脂液配方，不利于現(xiàn)場(chǎng)快速監(jiān)控分析。隨著使用過(guò)程中脫脂劑的消耗，有必要定期加以補(bǔ)充，以保持必要的濃度。杭州脫脂液配方</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州脫脂液配方,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784304345703/653841.png"></div><p style="text-indent:25px">脫脂應(yīng)在露天或通風(fēng)良好的地方進(jìn)行。工作人員應(yīng)有防毒保護(hù)措施，戴多層口罩和膠皮手套，穿圍裙與長(zhǎng)統(tǒng)套靴。濃度大時(shí)還應(yīng)戴防毒面具。在連續(xù)工作8h的情況下，空氣中的四氯化碳含量不得超過(guò)0.05mg/L。脫脂現(xiàn)場(chǎng)嚴(yán)禁煙火。溶劑嚴(yán)禁與強(qiáng)酸接觸。溶劑應(yīng)保存在密封的容器內(nèi)，不得與堿接觸，以防變質(zhì)。需要脫脂的部件，在脫脂前不應(yīng)沾有水分。閥門脫脂時(shí)，應(yīng)解體在四氯化碳溶液中浸泡4～5min，不宜過(guò)久。脫脂后的零部件要用氮?dú)饣蚋稍锟諝獯蹈珊蟛拍芙M裝使用。否則易發(fā)生腐蝕、生銹。管式換熱器脫脂時(shí)，要嚴(yán)防四氯化碳積存在換熱管內(nèi)。特別是換熱管被焊錫等雜物堵塞時(shí)更要注意。在脫脂后應(yīng)用熱空氣將其吹除到無(wú)氣味為止。若在管內(nèi)有四氯化碳積存，投入運(yùn)行后會(huì)凍結(jié)、膨脹，將管脹裂。同時(shí)，解凍后有水分存在時(shí)，會(huì)產(chǎn)生強(qiáng)烈的化學(xué)腐蝕，能把0.5mm厚的管蝕穿。無(wú)錫溶劑脫脂劑在電鍍加工過(guò)程中，應(yīng)用比較多的還是水基脫脂劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州脫脂液配方,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784250039062/8363438.png"></div><p style="text-indent:25px">脫脂劑的脫脂溫度:一般說(shuō)來(lái)，溫度越高，脫脂越徹底。溫度升高，油污粘度降低，容易形成液滴而利于除去。溫度升高也能促進(jìn)化學(xué)反應(yīng)的進(jìn)行，提高化學(xué)反應(yīng)速度。加速表面活性劑分子的運(yùn)動(dòng)，從而促進(jìn)浸潤(rùn)、乳化、分散等作用。但過(guò)高的溫度會(huì)使表面活性劑析出聚集在表面上，造成磷化膜發(fā)花不均勻。脫脂時(shí)間:在脫脂操作中，必須保證有足夠的脫脂時(shí)間。增加脫脂時(shí)間，即延長(zhǎng)脫脂液與油污的接觸時(shí)間，從而提高脫脂效果。油污越多，脫脂時(shí)間就需越長(zhǎng)。一般壓力噴射脫脂時(shí)間為1.5-3分鐘，浸漬脫脂為3-5分鐘。</p><p style="text-indent:25px">脫脂劑的某些油污如含有不飽和脂肪酸的拉延油，長(zhǎng)期存放后，氧化聚集形成薄膜，含有固體粉料的拉延油。細(xì)微的粉料吸附在基體金屬表面上，還有當(dāng)油污和金屬腐蝕物等混合在一起，都會(huì)極大的增加清洗的難度。脫脂是依靠脫脂劑對(duì)污物的溶解作用，皂化作用，依靠表面活性劑對(duì)污物的潤(rùn)濕、滲透、分散等物理作用等等。使污物成為可溶解的或可分散的。但還必須使污物離開金屬表面，而讓新的清洗劑占據(jù)表面，這樣金屬表面才能達(dá)到清潔。因固體表面有相對(duì)穩(wěn)定的液膜，溶解后的污物自動(dòng)離開金屬表面以及表面上清洗劑的更新等都不是很容易的。這就要求加以攪拌、擦拭等方式，以完成清洗過(guò)程或提高清洗效果等。在脫脂中，借助于壓力噴射或攪拌等機(jī)械作用是非常有效的，噴射時(shí)迫使新鮮的脫脂溶液與零件表面有良好接觸。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州脫脂液配方,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784210097656/6855523.png"></div><p style="text-indent:25px">脫脂劑安全不燃：本品為水基產(chǎn)品，貯存和使用都很安全。脫脂劑期間防銹：本品對(duì)鑄鐵的防銹性能≤1級(jí)，完全符合工序間防銹要求。超聲波清洗劑使用方式：噴淋、超聲波、浸泡、手工清洗等使用濃度：2-5%；較佳清洗溫度50-60℃。脫脂劑不宜將零件長(zhǎng)時(shí)間浸泡在本品中。本品可重復(fù)使用，初次需按2-5%濃度配槽。但是隨著處理次數(shù)的不斷增加，槽液濃度會(huì)逐漸衰減，因此當(dāng)濃度低于2%時(shí)，應(yīng)及時(shí)補(bǔ)充原液，使其達(dá)到規(guī)定的濃度并繼續(xù)使用。脫脂劑可作為通用的非離子型表面活性劑，在浸水、浸酸、復(fù)鞣、中和等工序使用。并不是所有場(chǎng)合都是溫度越高越好，各種脫脂劑有其適合的溫度范圍。杭州脫脂液配方</p><p style="text-indent:25px">脫脂除油的對(duì)象也很多，有各種金屬材料各不同，有由各種金屬制造的大小不同、形狀復(fù)雜程度不同的零部件。杭州脫脂液配方</p><p style="text-indent:25px">不同的金屬在堿液中有不同的腐蝕界限，必須根據(jù)零件的材質(zhì)選擇合適的pH值的脫脂劑。要考慮零件上的油污的化學(xué)性質(zhì)（儲(chǔ)存時(shí)能否與周圍介質(zhì)發(fā)生反應(yīng)而脫脂，與脫脂液能否發(fā)生皂化反應(yīng)），油污的物態(tài)（固體或液體，油污中固態(tài)塵顆粒含量），油污對(duì)底材的吸附性（分子極性）等情況，再選用合適的脫脂劑。脫脂方法不同，對(duì)脫脂劑要求也不同。壓力噴射脫脂因機(jī)械作用力，脫脂效果好，但由于處于極易起泡的狀態(tài)下，因此選用低泡脫脂劑是必要的，浸漬脫脂的機(jī)械作用較弱，因此要選用脫脂性更好的脫脂劑，適當(dāng)?shù)脑黾用撝瑒┖亢脱娱L(zhǎng)脫脂時(shí)間。杭州脫脂液配方</p><p style="text-indent:25px">上海昊琳化工有限公司屬于化工的高新企業(yè)，技術(shù)力量雄厚。上海昊琳化工是一家有限責(zé)任公司（自然）企業(yè)，一直“以人為本，服務(wù)于社會(huì)”的經(jīng)營(yíng)理念;“質(zhì)量高速，誠(chéng)守信譽(yù)，持續(xù)發(fā)展”的質(zhì)量方針。公司目前擁有優(yōu)異員工5~10人人，具有[ "環(huán)?；瘜W(xué)鍍鎳", "脫脂清洗劑", "拋光鈍化劑", "鋁浸鋅液" ]等多項(xiàng)業(yè)務(wù)。上海昊琳化工順應(yīng)時(shí)代發(fā)展和市場(chǎng)需求，通過(guò)**技術(shù)，力圖保證高規(guī)格高質(zhì)量的[ "環(huán)?；瘜W(xué)鍍鎳", "脫脂清洗劑", "拋光鈍化劑", "鋁浸鋅液" ]。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1019916.html</p></div></div></div></div></div><div id="t2y3jh3" class="page-right twoColRt"><div id="uixbi88" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jif2azw" 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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