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id="9v0lnjk" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">常州捷邁特表面工程技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>張建平</p><p><span>郵箱: </span>2228205437@qq.com</p><p><span>電話: </span>13806111697</p><p><span>傳真: </span>0519_89886107</p><p><span>網(wǎng)址: </span>http://www.jmtdacromet.com</p><p><span>手機(jī): </span>0519-89886107</p><p><span>地址: </span>昆侖路35號</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="4lttwsb" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="b5wo4zx" class="box"><p><p style="text-indent:25px">得出表面處理影響螺栓防松的一個關(guān)鍵性因素。達(dá)克羅的不同的表面處理工藝會產(chǎn)生不同的摩擦系數(shù)，摩擦系數(shù)較高時，天津達(dá)克羅技術(shù)廠，螺栓的防松性能相對較好，螺栓連接越不易松動，摩擦系數(shù)較低時，螺栓的防松性能相對較差，螺栓連接越容易松動。不表明在某種表面處理工藝防松效果一定好還是不好，同一種表面處理工藝可以做出不同的摩擦系數(shù)，防松效果也會不同。鋅鉻涂層，天津達(dá)克羅技術(shù)廠，這是我們對于達(dá)克羅表面處理技術(shù)的命名。鋅鉻涂層（達(dá)克羅）是一種新型的耐腐涂層，因其耐腐蝕性極強(qiáng)，天津達(dá)克羅技術(shù)廠，因此也可應(yīng)用于抗震支吊架產(chǎn)品，代替熱鍍鋅、電鍍鋅等表面處理工藝。達(dá)克羅可以耐高溫腐蝕，耐熱溫度可達(dá)300℃以上。天津達(dá)克羅技術(shù)廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津達(dá)克羅技術(shù)廠,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457938593750/8986644.png"></div><p style="text-indent:25px">達(dá)克羅的防腐機(jī)理:鋅對基體的受控的電化學(xué)保護(hù)作用。酸的鈍化作用：通常的鈍化**是在待處理的金屬表面形成一層極薄的鈍化膜，如電鍍、熱鍍，而達(dá)克羅溶液中無數(shù)微小的鋅片與鉻酸鈍化反應(yīng)，經(jīng)涂覆烘烤后，鋅片層層疊加，形成了無數(shù)層鈍化膜。鋅片鋁片及復(fù)后鉻鹽涂層的機(jī)械屏蔽遮蓋保護(hù)作用及鋁控制鋅的“淘析”作用。達(dá)克羅是一種先進(jìn)的，完整的金屬表面處理高新技術(shù)，它具有其它表面處理所無法比擬的優(yōu)勢和特點。末蝕化的鍍鋅層，鹽霧試驗時一般10小時腐蝕掉1-3um厚的達(dá)克羅處理過的金屬表面，進(jìn)行鹽霧試驗時100小時才腐蝕掉1um，比傳統(tǒng)的金屬表面處理耐腐蝕性提高7-10倍，鹽霧試驗可達(dá)1000小時以上，并且有抗二氧化硫的高技術(shù)指標(biāo)，顯示出更強(qiáng)的防銹性。天津達(dá)克羅技術(shù)廠在達(dá)克羅處理液中加入PTFE并通過調(diào)節(jié)其含量控制涂層的摩擦因數(shù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津達(dá)克羅技術(shù)廠,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457835185547/6132357.png"></div><p style="text-indent:25px">達(dá)克羅的涂層經(jīng)過高溫烘烤后，在工件的表面形成了由鋅、鋁片及復(fù)合鹽組成的涂層，它與鋼鐵基體有著良好的結(jié)合力，所以它的附著性相當(dāng)?shù)暮?。同時，這樣形成的涂層表面，有利于各種涂料的再涂裝。達(dá)克羅優(yōu)點解析達(dá)克羅涂覆生產(chǎn)過程中，工件在前處理時，*生成少量的鐵銹和粘附在工件表面的油污，整個生產(chǎn)是在一個封閉循環(huán)的工序中進(jìn)行，達(dá)克羅涂液在固化時向外排放的主要是涂液中的水份，因此對外界無污染。極強(qiáng)的抗腐蝕性能達(dá)克羅涂層在厚度一般情況下，一涂的厚度3～5μm，二涂二烘在6～10μm，根據(jù)統(tǒng)計，在標(biāo)準(zhǔn)鹽霧試驗下，達(dá)克羅涂層每100h消耗1μm，而電鍍鋅時涂層每10h即消耗1μm，因此達(dá)克羅涂層的抗鹽霧侵蝕能力，在同等涂層厚度下，是電鍍抗腐能力的7～10倍。做的好的達(dá)克羅的涂層，耐鹽霧侵蝕能力可達(dá)1000h以上。</p><p style="text-indent:25px">達(dá)克羅涂料的配置：打開B組份桶蓋，吸取11.7kgB液放入塑料桶內(nèi)。把兩個組份都放入水浴槽內(nèi)，打開加熱或冷卻裝置把兩個組份都調(diào)整到25C。再確認(rèn)一次兩組份重量和溫度后，把B組份緩慢倒入A組份，(一般分兩次倒入)并且開動攪拌機(jī)，用攪拌速度控制反應(yīng)溫度，當(dāng)溫度升到35C時，就要降低攪拌速度，當(dāng)涂料反應(yīng)溫度不再升高時，加快攪拌，當(dāng)溫度下降時，按需用刮板細(xì)度計測量涂料細(xì)度，當(dāng)達(dá)到15μ左右時，加入稱量好的增粘劑(或用玻璃棒粘上涂料，看涂料里是否還有粒子，如有粒子說明尚未分散開，繼續(xù)攪拌)。在日常達(dá)克羅涂覆加工時，很多客戶會碰到涂層附著力不合格而導(dǎo)致鹽霧時間短的問題。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="天津達(dá)克羅技術(shù)廠,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457602304687/3572505.png"></div><p style="text-indent:25px">達(dá)克羅有**度鋼在酸洗和電鍍等過程中有產(chǎn)生氫脆的危險性，雖然可以通過熱處理去氫，但是很難徹底去除。達(dá)克羅涂覆過程不需要酸洗和活化，也沒有導(dǎo)致析氫的電化學(xué)反應(yīng)發(fā)生，避免了氫脆現(xiàn)象的出現(xiàn)。發(fā)動機(jī)周圍等高熱環(huán)境金屬制件的防腐，如隔熱板、排氣管、散熱器、發(fā)動機(jī)缸蓋等零部件。傳統(tǒng)鍍鋅層表面鈍化膜在70℃左右就會被破壞，抗腐蝕能力急劇下降，而達(dá)克羅涂層的固化溫度為300℃左右，涂層中的鉻酸鹽聚合物不含結(jié)晶水，涂層在高溫下不易被破壞，表現(xiàn)出優(yōu)良的防腐性能。用達(dá)克羅工藝處理的零部件在250℃長期使用，其外觀幾乎不變，抗腐蝕能力很強(qiáng)。達(dá)克羅涂復(fù)件的壽命要高出原電鍍件的三至五倍，甚至更多，不*節(jié)省了大量的維修費，也節(jié)省了大筆的材料費。句容環(huán)保達(dá)克羅</p><p style="text-indent:25px">達(dá)克羅的燒結(jié)溫度較高、時間較長，能耗大。天津達(dá)克羅技術(shù)廠</p><p style="text-indent:25px">達(dá)克羅涂層的基本處理方法是浸涂，實際處理時根據(jù)處理零件的大小、形狀、質(zhì)量和要求性能不同，可以采用不同的處理方法。目前工廠常用的有浸—旋轉(zhuǎn)方法、噴射方法、浸瀝法。目前，達(dá)克羅已應(yīng)用于電力、建筑、海洋工程、家用電器、小五金及標(biāo)準(zhǔn)件、鐵路、橋梁、隧道、公路護(hù)欄、石油化工、生物工程、醫(yī)療器械粉末冶金等多種行業(yè)。達(dá)克羅國內(nèi)命名為鋅鉻涂層，是一種新型的耐腐涂層，與傳統(tǒng)的電鍍鋅相比：鋅鉻涂層耐腐蝕性能極強(qiáng)，是鍍鋅的7—10倍，無氫脆性，特別適用于**度受力件，高耐熱性、耐熱溫度300℃，尤其適用于汽車、摩托車發(fā)動機(jī)部件的**度構(gòu)件，高滲透性、高附著性、高減磨性、高耐氣候性、高耐化學(xué)品穩(wěn)定性、無污染性。天津達(dá)克羅技術(shù)廠</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1907845.html</p></div></div></div></div></div><div id="x2reqw9" class="page-right twoColRt"><div id="vjjizze" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rhwr2at" 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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