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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxhxp/">精細(xì)化學(xué)品</a>?<a href="http://www.cdcfah.com/cp/second-jxhxp_jsjgzj/">金屬加工助劑</a>?<a href="http://www.cdcfah.com/cp/third-jsjgzj_jsqxj/">金屬清洗劑</a>?臺(tái)州常溫脫脂劑歡迎咨詢上海昊琳化工供應(yīng)</p><div id="77hykhj" class="leftbox clearfix"><h1>臺(tái)州常溫脫脂劑歡迎咨詢上海昊琳化工供應(yīng)</h1><div id="smognur" class="proBig"><div id="8h2b7x8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333784100664062/6298715.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cvnurya" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333784100664062/6298715.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nmj7zby" 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>臺(tái)州常溫脫脂劑,脫脂劑</p><p><span>***更新：</span>2020-12-12 05:15:40</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="mldkmov" 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="l7fx3yn" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="s3held3" class="box"><p><p style="text-indent:25px">金屬脫脂劑主要用于脫除金屬材料表面的油污、油脂類。其中一類是以脂肪酸甘油脂為主的植物油、動(dòng)物油、食用油等皂化油，臺(tái)州常溫脫脂劑,可通過(guò)與金屬脫脂劑中堿的皂化作用去除。另一類是以各種潤(rùn)滑油，臺(tái)州常溫脫脂劑、機(jī)械油、礦物油、離合油、齒輪油、剎車油、機(jī)油、油墨、脫模油、壓縮機(jī)油，冷凍機(jī)油，臺(tái)州常溫脫脂劑，真空泵油、內(nèi)燃機(jī)油等礦物油(非皂化油),可通過(guò)金屬脫脂劑的乳化作用來(lái)脫除。在金屬材料表面處理中,脫脂是重要的工藝過(guò)程，金屬制件表面的脫脂程度將直接影響到制件的后續(xù)處理質(zhì)量。據(jù)統(tǒng)計(jì)，在表面處理中由于金屬脫脂劑的脫脂不徹底而導(dǎo)致鍍層、轉(zhuǎn)化膜不良的比例,一般占60%～80%。所以選用一款好的金屬脫脂劑對(duì)于整個(gè)表面處理工藝至關(guān)重要。脫脂方法不同，對(duì)脫脂劑要求也不同。臺(tái)州常溫脫脂劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="臺(tái)州常溫脫脂劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784100664062/6298715.png"></div><p style="text-indent:25px">乳化脫脂對(duì)油脂的限制較小，可以使用較低一些溫度，一般在50～70℃即可。而置換脫脂可以使用較低的溫度，一般在10～50℃下使用。但置換脫脂劑對(duì)蠟類去除效果不佳，在常溫下不能去除石蠟、凡士林、拋光膏等油脂。但置換脫脂劑對(duì)大多礦物油還是很有效果的。它的較大優(yōu)點(diǎn)不僅是脫脂快，更重要的是節(jié)能。脫脂劑的性能、脫脂原理，但它們卻不是孤立的，是相互聯(lián)系在一起的。舉例來(lái)說(shuō)，水中加入氫氧化鈉、碳酸鈉、磷酸鈉(還可再加入硅酸鈉)就配成了皂化型脫脂劑。當(dāng)這種脫脂劑溫度升至70℃以上使用時(shí)，油脂就和脫脂劑發(fā)生皂化反應(yīng)。在這種脫脂劑中加入表面活性劑，例如：OP-10，將溫度達(dá)到50～70℃之間，這時(shí)的油脂便會(huì)被乳化劑乳化后除去，這時(shí)的脫脂劑就變成了乳化型脫脂劑(第二類脫脂劑)。在這種脫脂劑中再加入某些表面活性劑，就可以變成置換型脫脂劑，可以在10～50℃之間使用。臺(tái)州常溫脫脂劑脫脂劑的多級(jí)水洗。通常進(jìn)行2道以上水洗(浸漬或噴淋，噴淋更適用帶縫隙工件)，一般認(rèn)為熱水洗優(yōu)于冷水洗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="臺(tái)州常溫脫脂劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784233378906/3829024.png"></div><p style="text-indent:25px">選用金屬表面除油脫脂劑應(yīng)考慮的方面有：不同的金屬在堿液中有不同的腐蝕界限，耐腐蝕性差的金屬如銅、鋅金屬等應(yīng)該選用中性或偏弱金屬表面除油脫脂劑；因此必須根據(jù)金屬的材質(zhì)選擇合適的PH值的金屬表面除油脫脂劑。要考慮零件上油污的化學(xué)性質(zhì)（如動(dòng)植物油與氫氧化鈉是可皂化的而與礦物油不發(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，再選用合適的金屬表面除油脫脂劑。再如清洗洗吸附性較強(qiáng)的防銹油用水基型金屬表面脫脂劑較難清洗，應(yīng)改用溶劑型金屬表面除油脫脂劑。</p><p style="text-indent:25px">脫脂劑對(duì)脫脂效果的影響脫脂劑的組成和使用方法對(duì)脫脂效果有很大的影響。例如，含有表面活性劑的堿液脫脂比單獨(dú)的堿性物溶液脫脂效果好。對(duì)于滴落點(diǎn)高的固態(tài)或半固態(tài)油脂，用溶劑清洗比用其他脫脂效果有效。為了提高油污的乳化和分散能力，適當(dāng)提高脫脂劑中表面活性劑的含量是有效的，不同的表面活性劑品種及不同的堿性物都使脫脂效果產(chǎn)生一定差異，良好的脫脂劑都是經(jīng)過(guò)大量試驗(yàn)，脫脂劑對(duì)其組分相互搭配比例進(jìn)行反復(fù)篩選而確定的。良好的脫脂劑都是經(jīng)過(guò)大量試驗(yàn)，對(duì)其組分相互搭配比例進(jìn)行反復(fù)篩選而確定的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="臺(tái)州常溫脫脂劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784089150391/7621596.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。脫脂劑按照性狀可分為溶劑型和水基兩種，其中水基脫脂劑可分為酸性，中性，堿性脫脂劑。臺(tái)州常溫脫脂劑</p><p style="text-indent:25px">選用脫脂劑時(shí)應(yīng)注意的事項(xiàng)：根據(jù)被處理零件的材質(zhì)選擇合適的PH值的脫脂劑。臺(tái)州常溫脫脂劑</p><p style="text-indent:25px">脫脂劑的脫脂時(shí)間在脫脂操作中，必須保證有足夠的脫脂時(shí)間，壓力噴射脫脂時(shí)間一般為1.5~3分鐘，浸漬脫脂為3~5分鐘（視油污的種類和多少而定）。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)。在流水線作業(yè)中，往往不允許采用太長(zhǎng)的時(shí)間，因此一般先用噴射予脫脂1分鐘，再用浸漬脫脂3分鐘。在采用某些種類表面活性劑的脫脂液中，過(guò)高的溫度會(huì)使表面活性劑析出聚集如同油珠附著在表面上，造成磷化膜發(fā)花不均勻。臺(tái)州常溫脫脂劑</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2369883.html</p></div></div></div></div></div><div id="7g92bd7" class="page-right twoColRt"><div id="jnph3nu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2dhjqcm" 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="8j4qevc" class="recomPic 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