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id="z8siyqx" 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(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="jtv8akh" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8v7evhe" class="box"><p><p style="text-indent:25px">達(dá)克羅除銹處理：工藝要求：拋丸打磨，工藝控制1.丸粒大?。?.3mm，有大小分布。丸粒多少：拋丸電流大小，間接反應(yīng)丸粒多少，一般控制10-15A。拋丸時(shí)間：根據(jù)工件形狀和銹蝕程度，一般10~20min。丸粒的硬度。達(dá)克羅涂覆工藝：過(guò)程簡(jiǎn)述：浸涂離心涂覆方法是在上料臺(tái)將前處理好的工件裝入涂覆籃筐內(nèi)，通過(guò)提升裝置與行走裝置將籃筐送入裝有達(dá)克羅涂液的浸涂槽內(nèi)，往復(fù)浸漬達(dá)克羅涂液后（30秒），再將籃筐送至離心機(jī)構(gòu)，正反旋轉(zhuǎn)離心，利用離心力作用將工件表面多余的涂液甩脫，河北達(dá)克羅生產(chǎn)廠，河北達(dá)克羅生產(chǎn)廠、涂層均化后，較后將籃筐送到卸料機(jī)構(gòu)，河北達(dá)克羅生產(chǎn)廠，把涂覆后的工件卸在燒結(jié)爐的網(wǎng)帶上固化成膜，同時(shí)涂液的回收裝置將甩脫的涂液循環(huán)回收至浸涂槽中。在jun事裝備上推廣達(dá)克羅涂層取代鋅鍍層，比較它們的性能指標(biāo)是必要的。河北達(dá)克羅生產(chǎn)廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北達(dá)克羅生產(chǎn)廠,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457445234375/1084208.png"></div><p style="text-indent:25px">鈍化作用：在達(dá)克羅的處理過(guò)程中，鉻酸與鋅、鋁粉和基體金屬發(fā)生化學(xué)反應(yīng)，生成致密的鈍化膜，這種鈍化膜具有很好的耐腐蝕性能。陰極保護(hù)作用：鋅鋁鉻涂層主要的保護(hù)作用與鍍鋅層一樣，是對(duì)基體進(jìn)行陰極保護(hù)。優(yōu)點(diǎn)：達(dá)克羅是一種新型的表面處理技術(shù)，與傳統(tǒng)的電鍍工藝相比，達(dá)克羅是一種“綠色電鍍”。其優(yōu)勢(shì)有以下幾點(diǎn)：很強(qiáng)的耐蝕性能：達(dá)克羅膜層的厚度*為4-8μm，但其防銹效果卻是傳統(tǒng)電鍍鋅、熱鍍鋅或涂料涂覆法的7-10倍以上。采用達(dá)克羅工藝處理的標(biāo)準(zhǔn)件、管接件經(jīng)耐鹽霧試驗(yàn)1200h以上未出現(xiàn)紅銹。河北達(dá)克羅生產(chǎn)廠使用達(dá)克羅的基體材料主要是鋼鐵和有色金屬。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北達(dá)克羅生產(chǎn)廠,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457745166016/762642.png"></div><p style="text-indent:25px">達(dá)克羅的免清洗焊接技術(shù)包括免洗波峰焊技術(shù)和免洗回流焊技術(shù)。前者由傳統(tǒng)波峰焊接發(fā)展而來(lái)，通過(guò)對(duì)設(shè)備、材料等方面的變革達(dá)到免清洗效果，主要解決插裝元器件和固化后貼裝元器件的波峰焊接。而后者則是裝配中的重要工藝環(huán)節(jié)，通過(guò)材料選擇和工藝控制來(lái)達(dá)到免清洗效果，主要解決貼裝元器件的回流焊接。達(dá)克羅涂層發(fā)花原因有很多，其一是空氣潮濕，氣溫低，會(huì)導(dǎo)致在烘烤時(shí)涂料中的水跡揮發(fā)不全，從而形成發(fā)花；第二就是在烘烤時(shí)爐子的參數(shù)不對(duì)，烘烤出來(lái)的工件也會(huì)產(chǎn)***花現(xiàn)象。發(fā)花會(huì)影響外觀，同時(shí)對(duì)鹽霧性能也會(huì)產(chǎn)生一定的影響。</p><p style="text-indent:25px">達(dá)克羅涂層中性鹽霧試驗(yàn)時(shí)，需要100小時(shí)左右才能腐蝕掉涂層1um，比傳統(tǒng)的鍍鋅處理耐腐蝕性提高7-10倍，中性鹽霧試驗(yàn)時(shí)間可長(zhǎng)達(dá)1000小時(shí)以上(厚度8um以上的涂層)，有的甚至更高，這是電鍍鋅和熱浸鋅層無(wú)法達(dá)到的。較好的耐熱性。因?yàn)檫_(dá)克羅涂層的鉻酸聚合物中沒(méi)有結(jié)晶水，且鋁\鋅片的熔點(diǎn)較高，所以涂層高溫耐蝕性極好。達(dá)克羅涂層耐熱溫度可達(dá)300℃，在250℃下連續(xù)長(zhǎng)期使用，其耐蝕性能幾乎不受影響，而電鍍鋅層表面鈍化膜在70℃左右開(kāi)始被破壞，耐蝕能力急劇下降。達(dá)克羅涂層與金屬基體有良好的結(jié)合力，而且與其他附加涂層有強(qiáng)烈的粘著性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北達(dá)克羅生產(chǎn)廠,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457938593750/8986644.png"></div><p style="text-indent:25px">達(dá)克羅有高強(qiáng)度鋼在酸洗和電鍍等過(guò)程中有產(chǎn)生氫脆的危險(xiǎn)性，雖然可以通過(guò)熱處理去氫，但是很難徹底去除。達(dá)克羅涂覆過(guò)程不需要酸洗和活化，也沒(méi)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(dòng)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(dòng)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(huì)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(zhǎng)期使用，其外觀幾乎不變，抗腐蝕能力很強(qiáng)。各種金屬表面涂層使用達(dá)克羅技術(shù)，也是必要的。河北達(dá)克羅生產(chǎn)廠</p><p style="text-indent:25px">達(dá)克羅是一種新型的表面處理技術(shù)，與傳統(tǒng)的電鍍工藝相比，達(dá)克羅是一種"綠色電鍍"。河北達(dá)克羅生產(chǎn)廠</p><p style="text-indent:25px">涂層的性能在jun事裝備上推廣達(dá)克羅涂層取代鋅鍍層，比較它們的性能指標(biāo)是必要的。為此廠、軍雙方成立了聯(lián)合試驗(yàn)小組，對(duì)鋅鉻涂層的鹽霧、濕熱、高低溫沖擊、快速腐蝕、涂層與基體附著力、涂層與漆膜附著力、涂層硬度、絲網(wǎng)印字、點(diǎn)焊性、導(dǎo)電性、拉伸、折彎、緊固件強(qiáng)力緊固等十多項(xiàng)的性能與低氰鍍鋅的試件進(jìn)行對(duì)比試驗(yàn)。（各項(xiàng)試驗(yàn)方法、步驟均按國(guó)軍標(biāo)、國(guó)標(biāo)有關(guān)規(guī)定）。在鋅鉻涂層厚度為8μm、鍍鋅厚度為15μm情況下，外購(gòu)鍍鋅緊固件*68小時(shí)退出試驗(yàn)，廠內(nèi)鍍鋅自制件在158小時(shí)出現(xiàn)了大面積腐蝕產(chǎn)物，并有大量紅色的腐蝕點(diǎn)，而鋅鉻涂層試件到1000小時(shí)才出現(xiàn)若干紅銹點(diǎn)。河北達(dá)克羅生產(chǎn)廠</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2124204.html</p></div></div></div></div></div><div id="xwyamnp" class="page-right twoColRt"><div id="pe7q87y" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ic7tdzb" 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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