建德化學(xué)脫脂劑質(zhì)量保證上海昊琳化工供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="除油脫脂劑所需要清洗的油污有皂化油類和非皂化油類；皂化油類油脂能與堿起化學(xué)作用生成可以溶解于水的脂肪酸鹽和甘油，（拉伸油、切削油、沖壓油、防銹油，建德化學(xué)脫脂劑、潤滑油）等都屬于此類油脂統(tǒng)稱為皂化油；所以清洗皂化油應(yīng)采用水溶性堿性除油脫脂劑"><meta name="keywords" content="建德化學(xué)脫脂劑,脫脂劑"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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src="https://tyunfile.71360.com/UploadFile/haolin123/637333784250039062/8363438.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8cqkc2s" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333784250039062/8363438.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cuoyiay" 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>建德化學(xué)脫脂劑,脫脂劑</p><p><span>***更新：</span>2020-12-23 04:16:40</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="02uimqm" 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="suseicw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="08m8ekg" class="box"><p><p style="text-indent:25px">除油脫脂劑所需要清洗的油污有皂化油類和非皂化油類；皂化油類油脂能與堿起化學(xué)作用生成可以溶解于水的脂肪酸鹽和甘油，（拉伸油、切削油、沖壓油、防銹油，建德化學(xué)脫脂劑、潤滑油）等都屬于此類油脂統(tǒng)稱為皂化油；所以清洗皂化油應(yīng)采用水溶性堿性除油脫脂劑。各種礦物油(汽油、煤油，建德化學(xué)脫脂劑、機(jī)油、凡士林等)均是非皂化油，建德化學(xué)脫脂劑。此類油不能與堿起化學(xué)反應(yīng)，其組成和性質(zhì)也與皂化油不同。所以清洗非皂化類油脂應(yīng)選用溶劑除油脫脂劑。堿性化學(xué)脫脂劑是由堿以及表面活性劑等物質(zhì)構(gòu)成，其是利用堿性化學(xué)脫脂劑的皂化和乳化作用、浸透潤濕作用機(jī)理除去可皂化油脂（動(dòng)植物油）和非皂化油脂（礦物油）等金屬表面油脂，可采用噴淋法、電解法，浸泡法、超聲波等脫脂除油工藝?；瘜W(xué)性質(zhì)根據(jù)油污能否與脫脂劑發(fā)生化學(xué)反應(yīng)而分為可皂化油污和不可皂化油污。建德化學(xué)脫脂劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="建德化學(xué)脫脂劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784250039062/8363438.png"></div><p style="text-indent:25px">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)，一般還認(rèn)為熱水洗優(yōu)于冷水洗，這對(duì)于氧化皮較厚的鋼板和需要酸洗的工件來說是必要的，但對(duì)于只需除油脫脂的幾件來說是不利的。因?yàn)楫?dāng)工件離開熱水洗進(jìn)人滴水區(qū)時(shí)，表面干洞，接觸空氣中的氧氣而易生銹二所以，經(jīng)冷水洗為宜。合理設(shè)計(jì)水槽。安裝一個(gè)溢流口(供水洗過程中保持溢流狀態(tài))和中間漏斗，進(jìn)水口位于操作面，水管直通槽底至槽高2/3處，有利于新鮮水循環(huán)良好。建德化學(xué)脫脂劑脫脂劑中加入具有乳化油脂作用的表面活性劑就變成了第二類乳化脫脂劑。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="建德化學(xué)脫脂劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784134111328/1259173.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0.05mg/L。脫脂現(xiàn)場嚴(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。</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。在流水線作業(yè)中，往往不允許采用太長的時(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。在金屬化學(xué)處理、電鍍及涂施之前，要用脫脂劑脫除金屬表面上的油脂及礦物油。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="建德化學(xué)脫脂劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784089150391/7621596.png"></div><p style="text-indent:25px">在使用脫脂劑時(shí)應(yīng)注意什么問題?管道和設(shè)備的脫脂溶劑通常采用四氯化碳或二氯乙烷，二者均具有毒性。因?yàn)槎纫彝檫€有燃燒和的危險(xiǎn)，所以較常用的溶劑是四氯化碳。四氯化碳對(duì)人體是有毒的。它是脂肪的溶劑，有強(qiáng)有力的麻醉作用，且易被皮膚吸收。四氯化碳中毒能引起頭疼、昏迷、嘔吐等癥狀。四氯化碳在500℃以下是穩(wěn)定的。在接觸到煙火，溫度升至500℃以上時(shí)，四氯化碳蒸氣與水蒸氣化合可生成光氣。在常溫下四氯化碳與硫酸作用也能生成光氣。光氣是劇毒氣體，極其微量也能引起中毒。此外，四氯化碳與堿發(fā)生化學(xué)反應(yīng)，會(huì)生成甲烷而失效。脫脂除油的工作復(fù)雜，影響面廣，在許多情況下要求清洗質(zhì)量嚴(yán)格，甚至要達(dá)到行業(yè)規(guī)定的標(biāo)準(zhǔn)。建德化學(xué)脫脂劑</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。建德化學(xué)脫脂劑</p><p style="text-indent:25px">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。脫脂在涂裝前處理乃至整個(gè)涂裝工藝中占有極其重要的地位，其作用表現(xiàn)在：影響磷化質(zhì)量，磷化過程完全取決于磷化槽液與工件表面的良好接觸，而要確保做到這一點(diǎn)，就必須在磷化之前或磷化過程中把工件表面的各種油脂、臟物、銹、氧化皮等異物徹底去除。如果工件表面的異物末被徹底去除干凈，這些異物就會(huì)對(duì)磷化起到一種機(jī)械屏障作用，延緩成膜速度，影響磷化晶體與工件表面的結(jié)合，甚至完全阻礙磷化槽液與工件表面接觸，導(dǎo)致不能形成磷化膜。建德化學(xué)脫脂劑</p></p><br 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