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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>上海軋輥廠,軋輥</p><p><span>***更新：</span>2020-12-05 05:09:17</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="sbdfxel" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無錫市前洲橡膠制品有限公司</a></p><p><span>聯(lián)系人：</span>楚駿杰</p><p><span>郵箱: </span>89202885@qq.com</p><p><span>電話: </span>13921100029</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0510-83451974</p><p><span>地址: </span>前洲街道友聯(lián)村</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ey38vf2" class="page-proshow02"><p class="title">詳細說明</p><div id="ramebtv" class="box"><p><p style="text-indent:25px">高速鋼作為熱軋輥材料的應用在1988年始于日本，20世紀90年代初期美國和歐洲也進行了研制，我國在20世紀90年代后期開始研制和使用高速鋼軋輥。一般高速鋼的成分為1%～2%Ｃ，0%～5%Ｃｏ，0%～5%Ｎｂ，3%～10%Ｃｒ，2%～7%Ｍｏ，2%～7%Ｖ，1%～5%Ｗ。因為擁有大量可形成強碳化物的合金元素如Ｗ和Ｖ，其比較終的顯微組織含有大約10%～15%具有極高硬度和高溫穩(wěn)定性的碳化物，所以在高溫下工作能保持較高的強度和硬度。其工作層硬度高，可達到80～85ＨＳ，具有較好的耐磨性和抗熱裂性，軋輥表面沒有出現(xiàn)熱裂紋，上海軋輥廠，一般沒有剝落現(xiàn)象，上海軋輥廠，上海軋輥廠。熱軋輥工作在交變的高溫和力的作用下，其表面反復受到摩擦，會產(chǎn)生強烈的磨損。上海軋輥廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海軋輥廠,軋輥" src="https://tyunfile.71360.com/WaterMark/UploadFile/wxqzxj/637318170165292968/6210466.png"></div><p style="text-indent:25px">雖然軋輥的探傷方法也有很多種，但是總的來說都是為了將軋輥上各種各樣的缺陷去除干凈，以保證軋線用輥的表面質(zhì)量和內(nèi)部質(zhì)量的合格，為了達到此目的，現(xiàn)在軋輥探傷向著自動化（安裝在軋輥磨床上）、綜合化（幾種探傷方法聯(lián)合使用）、專業(yè)化（設(shè)置專業(yè)探傷人員）的方向發(fā)展。我們現(xiàn)有的探傷水平有待提高，我們努力學習掌握更先進的探傷技術(shù)和探傷經(jīng)驗。軋輥的壽命主要取決于軋輥的內(nèi)在性能和工作受力。內(nèi)在性能包括強度和硬度等方面。要使軋輥具有足夠的強度，主要從軋輥材料方面來考慮；硬度通常是指軋輥工作表面的硬度，它決定軋輥的耐磨性，在一定程度上也決定軋輥的使用壽命，通過合理的材料選用和熱處理方式可以滿足軋輥的硬度要求。上海軋輥廠傳統(tǒng)熱軋輥材料的選用及熱處理工藝熱軋輥常工作在700℃～800℃的高溫環(huán)境。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海軋輥廠,軋輥" src="https://tyunfile.71360.com/WaterMark/UploadFile/wxqzxj/637318170185107421/7691917.png"></div><p style="text-indent:25px">感應淬火過程時將整體預熱的軋輥預熱到指定溫度后，將軋輥裝卡到活動框架上，輥身下端面與工頻感應器下平面保持在一個水平面上，兩個感應器從送電到全部進入輥身正常淬火，其功率逐漸增加，直到淬火全功率。同樣，當感應器離開輥身上端面時，功率也有大到小逐漸減小，直至全部離開輥身。感應加熱完成后，為減小淬火應力，應進行適當預冷后再噴淬。由于奧氏體在高溫階段比較穩(wěn)定，噴水器與下感應器之間有40mm的空隙，輥面溫度下降到850℃左右，不會影響淬火硬度。</p><p style="text-indent:25px">硬面軋輥：肖氏硬度約為60~85，用于薄板、中板、中型型鋼和小型型鋼軋機的粗軋機及四輥軋機的支撐輥。 ⑷特硬輥：肖氏硬度約為85~100，用于冷軋機。軋機類型：按軋機類型軋輥可分為以下三類： ⑴平面軋輥：即板帶軋機軋輥，其輥身呈圓柱形。一般熱軋鋼板軋機軋輥做成微凹形，受熱膨脹時，可獲得較好的板形；冷軋鋼板軋機軋輥做成微凸形，在軋制時，軋輥產(chǎn)生彎曲，以獲得良好的板形。⑵帶槽軋輥：它用于軋制大、中、小各種型鋼、線材及初軋開坯。在輥面上刻有軋槽使軋件成形。軋輥除磨損外，還經(jīng)常出現(xiàn)裂紋、斷裂、剝落、壓痕等各種局部損傷和表面損傷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海軋輥廠,軋輥" src="https://tyunfile.71360.com/WaterMark/UploadFile/wxqzxj/637318170161533203/6892878.png"></div><p style="text-indent:25px">傳統(tǒng)的軋輥選材及其熱處理工藝，同時，對軋輥材料及其熱處理工藝的發(fā)展進行了展望。傳統(tǒng)冷軋輥材料及其熱處理方式冷軋輥在工作過程中要承受很大的軋制壓力，加上軋件的焊縫、夾雜、邊裂等問題，容易導致瞬間高溫，使工作輥受到強烈熱沖擊造成裂紋、粘輥甚至剝落而報廢。因此，冷軋輥要有抵抗因彎曲、扭轉(zhuǎn)、剪切應力引起的開裂和剝落的能力，同時也要有高的耐磨性、接觸疲勞強度、斷裂韌性和熱沖擊強度等。國內(nèi)外冷軋工作輥一般使用的材質(zhì)有GCr19、9Cr2、9Cr、9CrV、9cr2W、9Cr2Mo、60CrMoV、80CrNi3W、8CrMoV、86CrMoV7、Mo3A等。20世紀50～60年代，這一時期的軋件多為碳素結(jié)構(gòu)鋼，強度和硬度不高，所以軋輥一般采用1.5%～2%Cr鍛鋼。合理選材及采用合適的熱處理方式高質(zhì)量地制造軋輥，可以節(jié)約大量的輥材。上海軋輥廠</p><p style="text-indent:25px">特殊軋輥：它用于鋼管軋機、車輪軋機、鋼球軋機及穿孔機等**軋機上。上海軋輥廠</p><p style="text-indent:25px">軋輥在熱處理過程中，對軋輥鋼的淬火和加熱限制在奧氏體中含碳量不超過0.6%的程度，然后進行盡可能強烈的冷卻，這樣就可以得到較深的淬硬層。此時，軋輥的淬硬層組織除隱針馬氏體(以板條為主)外，尚有約4%的碳化物和10%左右的殘留奧氏體。軋輥的表面硬度(包括殘余壓應力的影響)約為ＨＳ(Ｄ)95～99。比較后，用低溫回火將軋輥表面硬度調(diào)整到規(guī)定值，低溫回火越充分，硬度偏低時韌性越好，抗熱裂能力越高。鉬、釩含量的增加導致淬火后鋼中含有較多的殘余奧氏體，回火后大部分又轉(zhuǎn)變?yōu)樾埋R氏體，這樣就有助于提高軋輥硬度，增強耐磨性并降低磨損面粗糙度。上海軋輥廠</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2272471.html</p></div></div></div></div></div><div id="r38fw7z" class="page-right twoColRt"><div id="utqxpri" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="yskryax" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="mql8hja" class="recomPic likePro"><a 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