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id="whyfmtv" class="proBig"><div id="2artpwy" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ximengpentu/637278138619570312/7113337.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ptacofc" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ximengpentu/637278138619570312/7113337.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="macnugs" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>北京等離子不沾涂層熱噴涂</p><p><span>***更新：</span>2020-06-23 16:30:01</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="b3fmoam" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海茜萌噴涂科技有限公司</a></p><p><span>聯(lián)系人：</span>張小娥</p><p><span>郵箱: </span>627947031@qq.com</p><p><span>電話: </span>17751661524</p><p><span>傳真: </span>0519_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0519-59128888</p><p><span>地址: </span>江蘇省常州市武進區(qū)洛陽鎮(zhèn)馬鞍墩路51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="7zg77qx" class="page-proshow02"><p class="title">詳細說明</p><div id="smt29nz" class="box"><p><p style="text-indent:25px">熱噴涂技術(shù)在石油化工中應(yīng)用：設(shè)備內(nèi)噴涂合金，油田使用的塔，北京等離子不沾涂層熱噴涂、罐、管道可采用電弧噴涂鋁、鋅、不銹鋼等涂層防腐或采用火焰噴涂防腐。在反應(yīng)發(fā)生器內(nèi)壁已大量使用線材噴涂不銹鋼、司太立合金、鉬和鈦合金。采用等離子噴涂、超音速火焰噴涂，北京等離子不沾涂層熱噴涂、電弧噴涂均可解決油田用各種鍋爐管道的腐蝕和沖蝕問題。泥漿泵葉輪的工作狀態(tài)是漿料磨損，采用超音速噴涂WC/CO耐磨涂層材料可以***提高泥漿泵葉輪的使用壽命。泥漿泵缸套原采用耐磨合金或高鉻鑄鐵離心澆注，但耐磨合金使用壽命不理想而離心澆注材料耗費大，成品率不高。改用45鋼為基體材料，采用氧-乙炔火焰噴涂Ni-WC或等離子噴焊高鉻鑄鐵型材料，可以***提高壽命。特別等離子噴焊高鉻鑄鐵型涂層，北京等離子不沾涂層熱噴涂，涂層組織中形成大量的Cr7c13,有十分優(yōu)異的耐磨粒磨損性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京等離子不沾涂層熱噴涂" src="https://tyunfile.71360.com/UploadFile/ximengpentu/637278138619570312/7113337.png"></div><p style="text-indent:25px">熱噴涂金屬基防滑耐磨涂層：NiCr-Cr3C2 金屬陶瓷涂層具有硬度高、孔隙率低、斷裂韌性高、抗高溫氧化及循環(huán)氧化性好等優(yōu)點，在低溫和高溫條件下均保持高摩擦系數(shù)，表現(xiàn)出良好的摩擦學(xué)性能，被***用作海洋環(huán)境防滑耐磨防腐涂層。涂層在滿足防滑系數(shù)要求的前提下應(yīng)具備較長的使用壽命，在 NiCr 基防滑涂層中加入稀土氧化物（La2O3 或 CeO2 ）能大幅提高涂層的耐磨損性能。采用超音速等離子噴涂制備了稀土氧化物 La2O3 和 CeO2 含量不同的 NiCr-Cr3C2 涂層，摩擦系數(shù)在 0.6~0.7 之間。稀土元素容易與氧反應(yīng)形成稀土氧化物，可以增加晶核數(shù)量，Ce2O3 和CeCrO3 相會阻礙晶粒生長，達到細化晶粒、致密涂層組織的作用，提高涂層的耐磨及抗氧化性能，但對涂層防滑系數(shù)的影響較小。以氧化鋁為對磨球的高溫球磨試驗中發(fā)現(xiàn)，添加了 WC 顆粒的 NiCr 基涂層具有很高的摩擦系數(shù)，并且在 450 ℃時磨損率*為原來的五分之一。 WC 顆粒的加入會增強涂層的摩擦系數(shù)，NiCoCr-Cr3C2 -WC 涂層的室溫干摩擦系數(shù)為 0.7。涂層顯示出優(yōu)異的性能，無論在干磨還是鹽霧條件下，涂層的摩擦系數(shù)均在 0.9 以上，表現(xiàn)出極好的防滑性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北京等離子不沾涂層熱噴涂" src="https://tyunfile.71360.com/UploadFile/ximengpentu/637278146736328125/5118587.png"></div><p style="text-indent:25px">超音速火焰噴涂技術(shù)是針對普通火焰噴涂涂層的結(jié)合強度低空隙多問題而開發(fā)的，其目的是通過提高飛行速度來增大粉末對基體的撞擊動能以改善結(jié)合強度和致密性?；鹧鏈囟鹊?，粒子與周圍大氣接觸時間短，粉末氧化、燒損小?；鹧鎳娡繙囟纫话阍?650~2760℃，且顆粒在焰流中的飛行時間短，和周圍大氣接觸的時間短，因而和大氣幾乎不發(fā)生反應(yīng)，噴涂材料組織變化小，能保持原有的特點，特別適合噴涂碳化物等易氧化的粉末材料。超音速火焰噴涂系統(tǒng)的焰流具有很高的飛行速度和相對較低的溫度，火焰及噴涂粒子速度很高，高速區(qū)范圍大，噴射粒子撞擊能量大，火焰速度可達2000m/s。噴涂粒子速度可達450~650m/s甚至更高，所以超音速火焰噴涂制備的涂層結(jié)合強度高，涂層非常致密，孔隙率低于1%，噴涂WC-Co涂層結(jié)合強度可達70~90MPa，顯微硬度（HV）可達1100~1300。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/364557.html</p></div></div></div></div></div><div id="thj3tub" class="page-right twoColRt"><div id="wkw84jv" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="bf329ol" 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" 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