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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="2kh877x" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>山東達(dá)克羅表面處理哪家好,達(dá)克羅</p><p><span>***更新：</span>2020-12-28 03:12:03</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="7dvkryk" 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="8xphjld" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="jnfceax" class="box"><p><p style="text-indent:25px">達(dá)克羅涂覆溶液的性能有哪些：達(dá)克羅性能特點(diǎn)：達(dá)克羅技術(shù)與傳統(tǒng)的電鍍鋅、熱浸鋅技術(shù)相比有如下優(yōu)點(diǎn)：①超常的耐蝕性。鋅的受控電化學(xué)保護(hù)作用，鋅，山東達(dá)克羅表面處理哪家好、鋁片的屏蔽效應(yīng)以及鉻酸鹽的自我修復(fù)作用使得達(dá)克羅涂層具有很高的耐蝕性，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，山東達(dá)克羅表面處理哪家好，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，有的甚至更高，這是電鍍鋅和熱浸鋅層無法達(dá)到的。②較好的耐熱性。因?yàn)檫_(dá)克羅涂層的鉻酸聚合物中沒有結(jié)晶水，且鋁鋅片的熔點(diǎn)較高，所以涂層高溫耐蝕性極好，山東達(dá)克羅表面處理哪家好。達(dá)克羅中含有對(duì)環(huán)境和人體有害的鉻離子，尤其是六價(jià)鉻離子具有重要作用。山東達(dá)克羅表面處理哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東達(dá)克羅表面處理哪家好,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457687958984/8664291.png"></div><p style="text-indent:25px">達(dá)克羅設(shè)備良好的滲透性：由于靜電屏蔽效應(yīng)，工件的深孔、狹縫，管件的內(nèi)壁等部位難以電鍍上鋅，因此工件的上述部位無法采用電鍍的方法進(jìn)行保護(hù)。達(dá)克羅則可以進(jìn)入工件的這些部位形成達(dá)克羅涂層。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、發(fā)動(dòng)機(jī)缸蓋等零部件。達(dá)克羅涂層也不受各種油類、防凍液、清洗劑等化學(xué)制品的侵蝕，耐化學(xué)性、耐候性也都很好，所以達(dá)克羅設(shè)備十分適合載重汽車底盤及汽車外用零部件的防腐。尤其是對(duì)于載重汽車，其作業(yè)環(huán)境比較惡劣，所以對(duì)這些件的表面處理要求也相應(yīng)較高，而達(dá)克羅涂層具有高的耐腐蝕性，高的耐候性，非常適合這類汽車零部件的表面處理。山東達(dá)克羅表面處理哪家好達(dá)克羅特別適用于**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(dòng)機(jī)部件**度構(gòu)件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東達(dá)克羅表面處理哪家好,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457802675781/1784574.png"></div><p style="text-indent:25px">達(dá)克羅涂層新技術(shù)用于表面防腐時(shí)，主要經(jīng)過脫脂、涂層、固化、冷卻和成品檢驗(yàn)等過程。整個(gè)過程基本上是封閉的。達(dá)克羅是一種水溶性液體，凝固時(shí)只產(chǎn)生少量水蒸氣，因此不會(huì)產(chǎn)生對(duì)環(huán)境有害的物質(zhì)。中國現(xiàn)有電鍍工廠1.5萬家，員工總數(shù)50多萬人，生產(chǎn)線5000多條，電鍍面積生產(chǎn)能力2.5-3億平方米。電鍍行業(yè)年產(chǎn)值約100億元。據(jù)統(tǒng)計(jì)，中國電鍍行業(yè)每年排放的重金屬廢水污染物4億噸，固體廢物5000噸，酸性氣體3000萬立方米。如果達(dá)克羅法在電鍍工業(yè)中得到普遍應(yīng)用，我國的環(huán)境將得到很好的保護(hù)。達(dá)克羅涂料明顯比溶劑型涂料安全。溶劑霧容易引起火災(zāi)，危害工人的身體健康。達(dá)克羅溶液為水溶性，不易燃。在桶體的涂覆和固化過程中只產(chǎn)生少量的水蒸氣。操作人員可以戴口罩來保護(hù)自己。對(duì)于大多數(shù)液體涂料，需要體積較大的防毒面具。</p><p style="text-indent:25px">達(dá)克羅涂液是水溶性的涂液，所以它的滲透性非常好，在細(xì)微的空隙的中也能形成涂層，其深涂能力遠(yuǎn)優(yōu)于電鍍。與電鍍相比，對(duì)于小孔的內(nèi)壁，電鍍時(shí)是很困難的，但達(dá)克羅涂覆時(shí)則能很好的涂覆上去。有人曾做過試驗(yàn)，收緊的彈簧件經(jīng)過達(dá)克羅處理后，放開后再作鹽霧試驗(yàn)，其耐鹽霧試驗(yàn)的時(shí)間仍可達(dá)到240h以上，說明達(dá)克羅涂液已滲入緊密結(jié)合的縫隙處。達(dá)克羅處理的一個(gè)特點(diǎn)是工件在前處理時(shí)不進(jìn)行酸洗。氫脆是傳統(tǒng)電鍍鋅工藝不能完全克服的弊端，由于達(dá)克羅工藝不對(duì)工件進(jìn)行酸洗，就可以避免氫離子侵蝕鋼鐵基體，因此達(dá)克羅涂層特別適用于6～1000N/mm2的**度螺栓和彈簧種類的工件的表面防腐保護(hù)。無鉻達(dá)克羅有兩個(gè)發(fā)展方向，水性無鉻達(dá)克羅和溶劑型無鉻達(dá)克羅。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東達(dá)克羅表面處理哪家好,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457878310547/5782900.png"></div><p style="text-indent:25px">達(dá)克羅涂層的鉻酸聚合物中沒有結(jié)晶水，且鋁\鋅片的熔點(diǎn)較高，所以涂層高溫耐蝕性極好。對(duì)于達(dá)克羅的生產(chǎn)工藝，我們必須熟悉，現(xiàn)在有專門的涂料清洗設(shè)備對(duì)達(dá)克羅的加工，這項(xiàng)技術(shù)已經(jīng)在我們的生活中發(fā)揮了重要的作用。在達(dá)克羅加工過程中，達(dá)克羅涂料使用相關(guān)檢測(cè)方法分析。首先，從達(dá)克羅涂層的粘合強(qiáng)度試驗(yàn)來看，工業(yè)上主要使用膠帶試驗(yàn)方法來完成鋅-鉻涂層與基材的粘合強(qiáng)度。要求在試驗(yàn)后涂層不應(yīng)剝離或從基材上露出，但要使膠帶變色并粘附在鋅和鋁顆粒上。耐水性試驗(yàn)是將樣品浸入40℃的去離子水中，連續(xù)浸泡240小時(shí)，取出樣品并在室溫下干燥，然后進(jìn)行粘合強(qiáng)度試驗(yàn)。試驗(yàn)結(jié)果應(yīng)符合粘合強(qiáng)度試驗(yàn)的要求。由于汽車零配件對(duì)于穩(wěn)定性、防熱、防水防潮及防蝕性能等都有較高的要求，對(duì)達(dá)克羅涂料的引用提出了新要求。山東達(dá)克羅表面處理哪家好</p><p style="text-indent:25px">達(dá)克羅膜層的厚度*為4-8μm。山東達(dá)克羅表面處理哪家好</p><p style="text-indent:25px">什么是達(dá)克羅表面處理？達(dá)克羅表面處理是一種金屬表面防腐涂層的處理工藝，與早期的電鍍、機(jī)械鍍鋅等表面處理工藝類似，只是所使用的防腐涂料（俗稱溶液）配方不同，即處理工藝不同，可以說達(dá)克羅處理是早期防腐處理的換代升級(jí)；無鉻達(dá)克羅處理對(duì)產(chǎn)品和表面處理環(huán)境更環(huán)保，幾乎沒有有害物質(zhì)產(chǎn)生。同時(shí)，需要注意的是：達(dá)克羅只是一種防腐涂料，它是DACROMET的中文譯音；由于在新型防腐涂料行業(yè)中DACROMET出現(xiàn)早，使用時(shí)間長(zhǎng)；因此，行業(yè)內(nèi)使用DACROMET涂料做表面防腐處理的工件都叫達(dá)克羅處理。山東達(dá)克羅表面處理哪家好</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2593049.html</p></div></div></div></div></div><div id="k3kmogy" class="page-right twoColRt"><div id="xwogy8k" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="utlnpwt" class="recomPic likePro"><a href="http://m.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) 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