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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>廣州達(dá)克羅,達(dá)克羅</p><p><span>***更新：</span>2021-01-13 01:16:46</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="jcienhy" 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="o2u2ioz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="eizvmnt" class="box"><p><p style="text-indent:25px">達(dá)克羅技術(shù)的基體材料范圍：鋼鐵制品及有色金屬如鋁、鎂及其合金，銅、鎳、鋅等及其合金。而且涂覆全過程中無污染，在金屬表面處理歷史上是一場**，是當(dāng)今世界上金屬表面處理富有標(biāo)志性的高新技術(shù)。達(dá)克羅:在金屬表面形成一層耐腐蝕的致密涂層，從而保護(hù)基體金屬免受腐蝕的涂層技術(shù)。新型達(dá)克羅:是一種新型的耐腐涂鋅涂層，與傳統(tǒng)的電鍍鋅相比: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，高滲透性，廣州達(dá)克羅、高附著性、高減磨性、高耐氣候性，廣州達(dá)克羅、高耐化學(xué)品穩(wěn)定性，廣州達(dá)克羅。達(dá)克羅不用電沉積方法而將工件直接浸入達(dá)克羅處理液中，或用刷涂、靜電噴涂法使處理液粘附于工件表面，然后經(jīng)燒結(jié)而成的含鋅、鋁及鉻元素的無機(jī)轉(zhuǎn)化膜。在工業(yè)發(fā)達(dá)國家，該技術(shù)已作為替代污染嚴(yán)重的電鍍鋅、熱浸鍍鋅、電鍍鎘、鋅基合金鍍層、磷化等多種傳統(tǒng)L藝的防腐蝕處理工藝，這是一種從根本上減少環(huán)境污染的新工藝。達(dá)克羅技術(shù)的基體材料范圍：鋼鐵制品及有色金屬如鋁、鎂及其合金，銅、鎳、鋅等及其合金。廣州達(dá)克羅</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州達(dá)克羅,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333458032021484/75361.png"></div><p style="text-indent:25px">達(dá)克羅涂層中性鹽霧試驗(yàn)時，需要100小時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)時間可長達(dá)1000小時以上(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℃左右開始被破壞，耐蝕能力急劇下降。昆山達(dá)克羅工藝處理達(dá)克羅的處理工藝決定了達(dá)克羅沒有氫脆現(xiàn)象，所以達(dá)克羅非常適合受力件的涂覆。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州達(dá)克羅,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457802675781/1784574.png"></div><p style="text-indent:25px">達(dá)克羅即非點(diǎn)解水性鋅鉻涂層，是當(dāng)今世界涂鍍鋅業(yè)別具一格的金屬防腐蝕新材料新技術(shù)。其在鐵基材料及制品的重防腐蝕（長效防蝕、復(fù)合涂覆）工程施工中，可取代電鍍鋅、熱浸鍍鋅等傳統(tǒng)工藝。適用于包括汽車零部件、鐵路工程、港口機(jī)械、風(fēng)力發(fā)電行業(yè)在內(nèi)的極其普遍的鋼鐵材料及產(chǎn)品制造產(chǎn)業(yè)領(lǐng)域。達(dá)克羅是DACROMET譯音和縮寫，簡稱達(dá)克羅、達(dá)克銹、迪克龍。國內(nèi)命名為鋅鉻涂層，是一種以鋅粉、鋁粉、鉻酸和去離子水為主要成分的新型的防腐涂料。</p><p style="text-indent:25px">無污染和公害：作為“綠色電鍍”工藝，達(dá)克羅工藝采用了閉路循環(huán)的方式，所以幾乎無污染危害。涂層與基體結(jié)合力、涂層與漆膜之間結(jié)合力：在濕熱試驗(yàn)環(huán)境下，達(dá)克羅涂層與漆膜結(jié)合力達(dá)到國家一級、二級標(biāo)準(zhǔn)，達(dá)克羅涂層與基體結(jié)合力均為一級標(biāo)準(zhǔn)。點(diǎn)焊性能：對彎角件進(jìn)行達(dá)克羅涂敷后點(diǎn)焊，顯示達(dá)克羅涂層有良好的點(diǎn)焊性能。從達(dá)克羅工藝來說，先點(diǎn)焊后達(dá)克羅的防護(hù)性優(yōu)于先達(dá)克羅后點(diǎn)焊。防止對鋁的電化學(xué)腐蝕：達(dá)克羅涂層的防腐蝕是建立在鉻酸的鈍化作用和鋅的受控**保護(hù)作用之上的，所以壓制了鋅的消耗，提高了防腐蝕性能。達(dá)克羅涂層的延展性不好；涂層制備能耗高；達(dá)克羅涂層耐酸、堿性差。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣州達(dá)克羅,達(dá)克羅" src="https://tyunfile.71360.com/UploadFile/13915042526/637333457745166016/762642.png"></div><p style="text-indent:25px">達(dá)克羅是DACROMET譯音和縮寫，簡稱達(dá)克羅、達(dá)克銹、迪克龍。國內(nèi)命名為鋅鉻涂層，是一種以鋅粉、鋁粉、鉻酸和去離子水為主要成分的新型的防腐涂料。達(dá)克羅較早誕生于二十世紀(jì)五十年代末。在北美、北歐寒冷的冬天，道路上厚實(shí)的冰層嚴(yán)重阻礙機(jī)動車的行駛，人們用鹽撒在地上的方法來降低凝固點(diǎn)的溫度以緩解道路暢通問題，但是緊接而來的氯化鈉中的氯離子侵蝕了鋼鐵基體，交通工具嚴(yán)重受損、嚴(yán)峻的課題出現(xiàn)了。美國科學(xué)家研制了以金屬鋅片為主同時加入鋁片、鉻酸、去離子水做溶劑的高分散水溶性涂料，涂料沾在金屬基體上，經(jīng)過全閉路循環(huán)涂覆烘烤，形成薄薄的涂層。達(dá)克羅的膜層要比鈍化層更致密，所以耐蝕性更好，尤其是耐高溫腐蝕。昆山達(dá)克羅工藝處理</p><p style="text-indent:25px">達(dá)克羅技術(shù)也存在著一些不足，使其在汽車防腐中的應(yīng)用受到限制。廣州達(dá)克羅</p><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(xiǎn)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)。廣州達(dá)克羅</p></p><br /><p>文章來源地址: 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