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href="http://www.cdcfah.com/cp/third-jsjgzj_jsqxj/">金屬清洗劑</a>?表面處理除油劑誠(chéng)信為本上海昊琳化工供應(yīng)</p><div id="yi4dvhj" class="leftbox clearfix"><h1>表面處理除油劑誠(chéng)信為本上海昊琳化工供應(yīng)</h1><div id="mwlxegd" class="proBig"><div id="d7tacja" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333784233378906/3829024.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dus84hs" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/haolin123/637333784233378906/3829024.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="osp7d7z" 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>表面處理除油劑,脫脂劑</p><p><span>***更新：</span>2020-08-25 08:15:49</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8ghb73u" 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="akmd3qc" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="fkhzlxj" class="box"><p><p style="text-indent:25px">浸泡脫脂是使用具有攪拌、溶液循環(huán)等機(jī)械作用的浸泡槽將已增加浸泡脫脂劑的脫脂液加溫到60℃就可進(jìn)行脫脂清洗。浸泡脫脂所需設(shè)備簡(jiǎn)單、對(duì)復(fù)雜工件、有空腔結(jié)構(gòu)等的工件脫脂效果好，但脫脂處理時(shí)間相對(duì)較長(zhǎng)。噴淋脫脂是利用機(jī)械強(qiáng)噴射力來(lái)強(qiáng)化脫脂的一種工藝方法，表面處理除油劑，噴淋式脫脂由于機(jī)械力的作用，表面處理除油劑，噴淋脫脂劑綜合液溫度可降低到40℃－50℃，表面處理除油劑，處理時(shí)間一般是浸泡脫脂的1/10-1/3左右且對(duì)外表面脫脂清洗效果好，對(duì)內(nèi)表面脫脂效果稍差，特別是要求噴淋室密封好，不漏水，不串水。噴淋式設(shè)備管路多，噴嘴多，維護(hù)工作量大，必須加強(qiáng)各方面管理。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。表面處理除油劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="表面處理除油劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784233378906/3829024.png"></div><p style="text-indent:25px">在使用脫脂劑時(shí)應(yīng)注意什么問(wèn)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。表面處理除油劑浸泡脫脂是使用有攪拌、溶液循環(huán)等機(jī)械作用浸泡槽將已增加浸泡脫脂劑的脫脂液加溫到60℃就可進(jìn)行脫脂清洗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="表面處理除油劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784210097656/6855523.png"></div><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。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)，不利于現(xiàn)場(chǎng)快速監(jiān)控分析。</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?chē)橘|(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。除油脫脂劑的組成和使用方法對(duì)脫脂效果有很大的影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="表面處理除油劑,脫脂劑" src="https://tyunfile.71360.com/UploadFile/haolin123/637333784069941406/2461785.png"></div><p style="text-indent:25px">使用除油脫脂劑脫脂后處理應(yīng)注意的事項(xiàng)：防止使用除油脫脂劑脫脂后工件表面產(chǎn)生干生膜：所謂干生膜是指工件脫脂后，水洗前后產(chǎn)生一種干燥膜，這種干生膜的存在會(huì)影響磷化膜的完整性和均勻性，產(chǎn)生藍(lán)膜和黃銹。故須在除油脫脂和水洗間隔區(qū)、水洗和表調(diào)間隔區(qū)設(shè)置微霧噴淋(當(dāng)工序間超過(guò)1min,增設(shè)噴淋設(shè)備)，防止干燥。使用除油脫脂劑脫脂后水洗是非常關(guān)鍵的工序，因?yàn)楣ぜ砻鏆埩舻某兔撝瑒?含有SiO32-、Cl-、SO42-、CO32-和表面活性劑等)形成覆蓋膜，影響磷化效果(晶核數(shù)目減少，磷化膜變薄，且粗糙，產(chǎn)生白點(diǎn)、絲狀、發(fā)花等缺陷，耐蝕性降低)；涂膜產(chǎn)生縮孔、細(xì)孔等缺陷)。為此，可采取如下措施。不同的表面活性劑品種及不同的堿性物的脫脂效果有一定的差異。表面處理除油劑</p><p style="text-indent:25px">我們選擇脫脂劑前應(yīng)先了解所脫脂脂的種類(lèi)。表面處理除油劑</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。根據(jù)油污的種類(lèi)及數(shù)量選擇合適的脫脂劑。選用脫脂性能好的脫脂劑。注意與下道工序的配合。清洗能力（重量法）。脫脂劑的清洗能力是清洗劑的重要性能，目前檢驗(yàn)脫脂劑的清洗能力的方法有多種，包括定性的檢測(cè)有驗(yàn)油試紙法GB/T13312-91，鋼帶試件涂裝前除油程度檢驗(yàn)方法（驗(yàn)油試紙法），脫脂棉擦拭法，水膜法等。定量檢測(cè)法包括重量法，熒光法，其中重量法是比較方便和比較簡(jiǎn)單的方法。表面處理除油劑</p><p style="text-indent:25px">上海昊琳化工有限公司致力于化工，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。上海昊琳化工擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專(zhuān)業(yè)研發(fā)團(tuán)隊(duì)，以高度的專(zhuān)注和執(zhí)著為客戶(hù)提供環(huán)?；瘜W(xué)鍍鎳，脫脂清洗劑，拋光鈍化劑，鋁浸鋅液。公司繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。上海昊琳化工始終關(guān)注自身，在風(fēng)云變化的時(shí)代，我們對(duì)自身的建設(shè)毫不懈怠，高度的專(zhuān)注與執(zhí)著使我們?cè)谛袠I(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1033195.html</p></div></div></div></div></div><div id="zifcoac" class="page-right twoColRt"><div id="smjl2ry" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="tdfmofh" 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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