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</div>   <div class="ny_right"> <div class="ny_right_tit"><a href="/">首頁</a> > <a href="/xinwenzixun/">新聞資訊</a> > <a href="/xingyexinwen/">行業新聞</a> </div> <div class="ny_right_content"> <div class="article_title"><h1>如何防止不銹鋼翅片管散熱器腐蝕</h1></div> <div class="artdet">發布時間：2021-07-24</div> <div id="news_con"> <br /><br />用304不銹鋼制作的不銹鋼散熱器正在改善對核電站散熱器腐蝕性、不潔凈、生銹、壽命短的缺陷的設計，只要更換傳熱系數，就可以代替所有其他銅、鋼散熱器，尺寸可以根據需要進行定制。不銹鋼散熱器為18*2-38/3.2、22*2-52/5、25 * 2-55<br /><br />翅片管和管板之間的連接使用氬弧焊。焊接處首先進行鈍化處理，然后通過滲透探傷檢查，確保產品質量。進入低溫水或鹽水可以冷卻空氣，進入高溫水或蒸汽可以加熱空氣。<br /><br />304不銹鋼材料，適用于所有加熱、空調、冷卻、除濕、干燥，適用于乳制品、醫藥、化工、食品等具有特殊腐蝕性、清潔、美觀的實用加熱器。<br /><br />不銹鋼散熱器設備成型后均進行16公斤/平方厘米的水壓試驗，壓縮30分鐘。<br /><br />國家標準號(304、321、316等)不銹鋼可作為主材，產品具有高防腐特性，適合媒體具有腐蝕性或對工藝要求的媒體清潔性要求時使用。<br /><br />不用注滿水，維護簡單。材料耐腐蝕，不易泄漏，壽命長(是普通碳鋼散熱器的4 ~ 5倍)。按使用年限計算，經濟優勢明顯。<br /><br />不銹鋼散熱器的外觀一般經過鈍化、拋光、噴涂等工藝，外觀優美。如果只有管內介質具有腐蝕性，材料可以使用不銹鋼復合鋁翅片管，利用鋁翅片的高效熱傳導性，達到高效傳熱的目的。<br /><br />不銹鋼散熱器在各種工業水中具有非常低的總腐蝕速度(例如，流速為0.3 ~ 0.6米/秒的海水，316不銹鋼的腐蝕速度僅為0.5m/a)，但在實際工業生產條件下，不銹鋼設備，特別是各種工業水冷卻器經常發生腐蝕破壞事故。生產運行1 ~ 2年后，各工廠不銹鋼散熱器相繼腐蝕，不斷更換不銹鋼散熱器，造成巨大經濟損失。<br /><br />所有這些腐蝕破壞都是局部腐蝕(主要是孔腐蝕和應力腐蝕破裂)造成的<br /><br /><img alt="不銹鋼翅片管散熱器" src="/d/file/p/2021/07-30/aaf897717ac715d13325c31f0eafa4a3.jpg" /><br /><br />不銹鋼散熱器腐蝕的原因<br /><br />1、不銹鋼在工業水中的孔侵蝕<br /><br />孔腐蝕是一種極端的局部腐蝕形式。腐蝕點發生在金屬表面后，向縱向深度發展的速度大于或等于橫向發展速度，腐蝕的結果是在金屬表面形成腐蝕點或小孔。腐蝕點有時彼此孤立，有時彼此靠得很近，好像是粗糙的表面。腐蝕點的直徑很大，但大多數情況下比較小，有些只有幾十微米。上面經常被腐蝕產物覆蓋，不易檢查。很難通過實驗室實驗預測腐蝕速度。有時形成腐蝕點需要很長時間，大約幾個月或幾年。一旦形成，發展迅速，往往會突然發生腐蝕損傷(穿孔)。因此，孔腐蝕是一種非常危險和激烈的局部腐蝕形式。大量研究已經表明，孔腐蝕發生在附件或沉積物下。一旦采取措施清除附件或沉積物，問題也可以避免。<br /><br />2、工業水中不銹鋼的應力腐蝕破裂<br /><br />工業水中奧氏體不銹鋼的應力腐蝕破裂是由孔腐蝕引起的，這兩個影響參數相同，但各自要求的閾值不同。<br /><br />對于各種水冷器發生的應力腐蝕破裂，溫度的影響比CL-濃度的影響更重要，因此要注意氯離子濃度和溫度的結合作用。<br /><br />由于實驗室實驗結果與生產運行條件下的破壞現象存在差異，對不銹鋼散熱器的應力腐蝕破裂條件進行了多次工業實用裝置破壞情況調查的統計分析。對685臺不銹鋼設備報廢原因的分析顯示，應力腐蝕破裂和孔腐蝕占38%。對954臺這種材料設備的破壞原因分析顯示，應力腐蝕破裂和孔腐蝕為63%(應力腐蝕破裂為38%，孔腐蝕為25%)。<br /><br />通過對大量工業設備運行情況的統計分析，認識到影響不銹鋼孔腐蝕和應力腐蝕破裂的主要因素，并提出一些統計規律，有助于延長不銹鋼設備的運行壽命。<br /><br />不銹鋼設備的報廢完全是局部腐蝕破壞，主要是孔腐蝕和應力腐蝕破裂造成的，因此，可以探索對工業水合理、經濟有效的防腐措施，并作為實際生產的需要和條件應用，這對圣山是必不可少的。<br /><br />無錫德里達換熱器是翅片管、雙金屬翅片管、換熱器、散熱器、空氣換熱器、油冷卻器、水冷裝置、風冷器、不銹鋼散熱器、蒸汽換熱器、導熱油散熱器、氮氣冷卻器、電動機冷卻器、乙二醇冷卻器生產基地 </div> <div class="clear"></div> </div> <ul class="newsnext"> <li>上一篇：<a href='/xingyexinwen/141.html'>螺旋翅片管在余熱鍋爐上的應用及特性</a> </li><li>下一篇：<a href='/xingyexinwen/144.html'>判斷翅片管換熱器優缺點的標準及未來技術展望</a> </li> <div class="clearfix"></div> </ul> <div class="clear"></div> </div> <div class="clear"></div>  </div> </div>   <div class="footnav"> <div class="footguide"> <div class="logo_m"> <img src="/skin/default/images/flogo.jpg" alt="翅片管" title="激光焊翅片管"/> <div class="cl"></div>  <div class="search_foot"> </div>  </div> <div class="tit"> <p>關于華潔</p> <a href="/gongsijianjie/" title="" rel="nofollow">公司簡介</a><a href="/about/qiyewenhua/" title="" rel="nofollow">企業文化</a><a href="/sccj/" title="" rel="nofollow">生產車間</a><a 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