h型钢体积表_h型钢体积表今日价格、行情走势、最新报价

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href="" title="h型钢体积表" class="channel" >h型钢体积表</a> </h1> </div>  </div> </header>  <div class="crumbs"> <div class="crumbs-left"> <span class="crumbs-tit">当前位置：</span> <a href="https://www.mysteel.com" external="" class="crumbs-logo">我的钢铁网</a> <b class="crumbs-icon">></b> <div class="sel-btn"> <span>黑色金属</span> <i></i> <ul class="sel-box"> <li><a href="https://www.mysteel.com/dh/hsjs/1.html" target="_blank">黑色金属</a></li> <li><a href="https://www.mysteel.com/dh/ysjs/1.html" target="_blank">有色金属</a></li> <li><a href="https://www.mysteel.com/dh/nyhg/1.html" target="_blank">能源化工</a></li> <li><a href="https://www.mysteel.com/dh/jzcl/1.html" target="_blank">建筑材料</a></li> <li><a href="https://www.mysteel.com/dh/ncp/1.html" target="_blank">农产品</a></li> <li><a href="https://www.mysteel.com/dh/xny/1.html" target="_blank">新能源</a></li> <li><a href="https://www.mysteel.com/dh/qt/1.html" target="_blank">其他</a></li> </ul> </div> <b class="crumbs-icon">></b> <a href="https://hxinggang.mysteel.com/" external="" class="crumbs-logo" target="_blank">H型钢</a> <b class="crumbs-icon">></b> <span class="crumbs-text">h型钢体积表</span> </div> <div class="crumbs-right"> <p class="update">更新时间：2025-03-21</p> </div> </div>  <div class="wrap">  <div class="main f-l"> <div class="top-box">  <div class="top-zs-box f-l" name="热轧H型钢价格走势" code="ID01723589"> <h3 class="menu-btn"> <a href="javascript:;" class="zst-btn btnon" type="2">15日</a> <a href="javascript:;" class="zst-btn btn-lock" type="5">30日</a> <a href="javascript:;" class="zst-btn btn-lock" type="6">90日</a> <a href="javascript:;" class="zst-btn btn-lock" type="103">1年</a> </h3> <div> <div class="zst-item show"> <div class="echart-data" id="zst"></div> </div> </div> </div>   <div class="kuaixun f-r"> <div class="kx-title"> <p class="kx-tit1 f-l">快讯播报</p> <h2 class="kx-tit2 f-l"> <span class="blue">h型钢体积表</span>快讯</h2> </div> <div class="news-item f-r"> <div class="wrap"> <div class="row"> <div class="news-flash" id="kuaixunwrap"> <dl> <dt> <span class="kx-date">2025-02-24</span> <span class="kx-time">11:27</span> </dt> <dd> <p><span style="text-align: justify;">近日，山钢股份成功研发并批量生产36.5毫米厚度外标耐低温<em class='keyword'>H型钢</em>，产品将用于海外工程建设。这不仅刷新了山钢型钢产品的极限规格，还填补了国内特厚耐低温<em class='keyword'>H型钢</em>生产领域的技术空白，为山钢参与国际合作项目注入强劲动力。</span><p>据了解，36.5毫米厚度<em class='keyword'>H型钢</em>属业内公认的型钢极限尺寸规格，轧制工艺复杂，技术难度高，尤其是在保障产品低温性能方面存在诸多技术难题。此次是山钢股份型钢线首次生产36毫米以上厚度的耐低温<em class='keyword'>H型钢</em>，技术研发、生产制造等面临巨大挑战。为突破技术瓶颈，山钢股份制造管理部牵头联合山钢股份型钢厂、炼钢厂等单位，组建技术攻关团队，突破传统工艺限制，使产品在零下20摄氏度低温环境下的冲击功稳定性显著提升，实测数值达到200焦耳以上。</p><p>经过严格的质量检验，该批次产品的<em class='keyword'>表</em>面质量、外形尺寸及低温冲击性能均符合或优于相关标准，满足客户使用要求，展现了山钢在耐低温<em class='keyword'>H型钢</em>研发生产领域的硬核竞争力，进一步提高了山钢在海洋工程、桥梁建设等高端市场的接单能力。</p></p> </dd> </dl> <dl> <dt> <span class="kx-date">2025-01-08</span> <span class="kx-time">08:17</span> </dt> <dd> <p>小麦价格大范围下跌，市场购销谨慎，临近年关，大部分持粮主<em class='keyword'>体积</em>极出售库存，少部分留库存以待后市，市场粮源供应<em class='keyword'>表</em>现充足。粉企面粉走货依旧不温不火，随着下游面粉经销商阶段性备货结束，粉企小麦采购积极性减弱；由于粉企普遍看空年后行情，年前建库意愿不高，上量满足刚需后接连小幅下调采购价格。预计今日小麦市场价格偏弱运行，后市关注政策拍卖及粮商购销心态变化情况。</p> </dd> </dl> <dl> <dt> <span class="kx-date">2024-11-21</span> <span class="kx-time">09:00</span> </dt> <dd> <p>近日，首批供澳大利亚深水海洋油气平台用保-50℃低温冲击欧标<em class='keyword'>H型钢</em>，在山钢股份型钢厂首次开发试制成功并实现批量生产。经检验，该产品的力学性能、外形尺寸、<em class='keyword'>表</em>面质量等指标均满足客户及标准的技术要求。保-50℃低温冲击欧标<em class='keyword'>H型钢</em>应用于深海区域油气平台建造。钢材处在海洋环境，风荷载、波浪、水流力等因素影响交织，对钢材的强度、韧性、探伤均有较高要求。为保证产品质量、降低试制成本，确保产品一次性开发成功，制造管理部产品管理室联合相关单位，对产品的成分及冶炼、轧制工艺进行了设计和优化，并制定了详细科学的质量计划和操作要点，确保了该产品一次试制成功。此次产品开发成功，进一步拓宽了型钢产品应用领域，极大提升了山钢海工型钢的品牌效应。</p> </dd> </dl> <dl> <dt> <span class="kx-date">2024-10-16</span> <span class="kx-time">13:45</span> </dt> <dd> <p><p>10月15日，为顺应钢铁行业需求变化情况，安阳钢铁对产品结构做“加减法”，减少建材、低端钢材的产能，增加高端钢材的产能。受房地产行业调整影响，公司停用两条螺纹钢产线。程官江<em class='keyword'>表</em>示，未来将逐步停产型材、长材。总体看，公司减产率为25%，产能总量由1000万吨减少至760万吨。公司主动停用了1座2200立方米的高炉，该高炉体量远超部分地方政府要求关停高炉的<em class='keyword'>体积</em>标准（1000立方米以下）。公司还停用了1座360平方米的烧结机与1座6米高的焦炉。</p></p> </dd> </dl> <dl> <dt> <span class="kx-date">2024-10-12</span> <span class="kx-time">17:10</span> </dt> <dd> <p>经研究决定，在9月30日价格基础上，<em class='keyword'>H型钢</em>产品各区城价格统一上调100元，中型材产品各区域价格统一上调100元。价格具体如下: 华东市场:<em class='keyword'>H型钢</em>中小规格3700元/吨，大规格3740元/吨，重型规格4450元/吨:槽钢 3700元/吨，工字钢3700元/吨，角钢3730元/吨; 华中市场:<em class='keyword'>H型钢</em>中小规格3700元/吨，大规格3740元/吨，重型规格4450元/吨:槽钢3700元/吨，工字钢3700元/吨，角钢3730元/吨; 华南市场:<em class='keyword'>H型钢</em>中小规格3750元/吨，大规格3790元/吨，重型规格4500元/吨:槽钢 3700元/吨，工字钢3700元/吨，角钢3730元/吨: 西南市场:<em class='keyword'>H型钢</em>中小规格3750元/吨，大规格3790元/吨，重型规格4500元/吨。以上价格均含税，代<em class='keyword'>表</em>材质规格为<em class='keyword'>H型钢</em>中小规格Q235B/200*200,大规格Q235B/600*200，重型规格Q235B/500*500,钢Q235B/14#，工字钢Q235B/14#，角钢 Q235B/14#。</p> </dd> </dl> </div> </div> </div> <div class="more-div more" id="kuaixunmore"> <a rel="nofollow" id="btn-kuaixun" 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class='keyword'>H型钢</em></span> <span class="date">2025-03-21 13:47</span> </div> </li> <li class="item item-market"> <a class="tit" link="https://xinggang.mysteel.com/m/25032111/884FA9DEC6643461.html">3月21日乌鲁木齐市场<em class='keyword'>H型钢</em>价格行情</a> <div class="other-info"> <span class="info-tit">热轧<em class='keyword'>H型钢</em></span> <span class="date">2025-03-21 11:12</span> </div> </li> <li class="item item-market"> <a class="tit" link="https://xinggang.mysteel.com/m/25032111/AE64FB0B3A20833F.html">3月21日银川市场<em class='keyword'>H型钢</em>价格行情</a> <div class="other-info"> <span class="info-tit">热轧<em class='keyword'>H型钢</em></span> <span class="date">2025-03-21 11:02</span> </div> </li> <li class="item item-market"> <a class="tit" link="https://xinggang.mysteel.com/m/25032111/66EE049A3311AB57.html">3月21日廊坊市场<em class='keyword'>H型钢</em>价格行情</a> <div class="other-info"> <span class="info-tit">热轧<em class='keyword'>H型钢</em></span> <span class="date">2025-03-21 11:02</span> </div> </li> <li class="item item-market"> <a class="tit" link="https://xinggang.mysteel.com/m/25032111/EBC8A76B15D02F80.html">3月21日西宁市场<em class='keyword'>H型钢</em>价格行情</a> <div class="other-info"> <span class="info-tit"><em class='keyword'>H型钢</em></span> <span class="date">2025-03-21 11:02</span> </div> </li> <li class="item item-market"> <a class="tit" link="https://xinggang.mysteel.com/m/25032111/31FCDD7F5788C1B9.html">3月21日包头市场<em class='keyword'>H型钢</em>价格行情</a> <div class="other-info"> <span class="info-tit">热轧<em class='keyword'>H型钢</em></span> <span class="date">2025-03-21 11:01</span> </div> </li> <li class="item item-market"> <a class="tit" link="https://xinggang.mysteel.com/m/25032110/2A39EA9D31FBE0B7.html">3月21日南昌市场<em class='keyword'>H型钢</em>价格行情</a> <div class="other-info"> <span class="info-tit"><em class='keyword'>H型钢</em></span> <span class="date">2025-03-21 10:52</span> </div> </li> <li class="item item-market"> <a class="tit" link="https://xinggang.mysteel.com/m/25032110/E096DBC46F30F3BB.html">3月21日常州市场<em class='keyword'>H型钢</em>价格行情</a> <div class="other-info"> <span class="info-tit"><em class='keyword'>H型钢</em></span> <span class="date">2025-03-21 10:52</span> </div> </li> <li class="item item-market"> <a class="tit" link="https://xinggang.mysteel.com/m/25032110/E9D4CA88AC7126D4.html">3月21日镇江市场<em class='keyword'>H型钢</em>价格行情</a> <div class="other-info"> <span class="info-tit"><em class='keyword'>H型钢</em></span> <span class="date">2025-03-21 10:52</span> </div> </li> </ul> </div> <div class="list-block market-box"> <a class="btn-more text-center" id="btn-market">点击加载更多</a> </div> </div>  <div class="news-item price-item"> <ul class="price-list price-box" > <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25032109/191E0ABDB81F7A05.html">3月21日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-21 13:48</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25032008/49BEE2FEB2939B03.html">3月20日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-20 17:27</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25031908/CD222EC794473080.html">3月19日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-19 14:35</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25031808/41606133EE92D6F0.html">3月18日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-18 10:51</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25031709/59BA4AF673C144AA.html">3月17日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-17 15:53</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25031409/A1CCF7380F6C81D7.html">3月14日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-14 15:20</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25031309/42D2CA84FAA4FBFF.html">3月13日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-13 10:50</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25031209/1D0F1BA468BC5514.html">3月12日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-12 10:51</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25031108/BA806A19F5AB707B.html">3月11日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-11 16:04</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25031009/D3F3DDB8A9BE9B5B.html">3月10日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-10 10:49</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25030709/4B2C9F626AAD3584.html">3月7日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-07 10:57</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25030609/BE9B67692546060C.html">3月6日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-06 10:48</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25030509/0AEEF63643EE869D.html">3月5日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-05 15:22</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25030409/8AB2C7DA7CD4AEBE.html">3月4日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-04 10:52</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25030309/9C55478A4EBA673A.html">3月3日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-03-03 10:56</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25022808/1BC6A53009542BE3.html">2月28日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-02-28 10:56</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25022709/99F3BBF7B95CBC6D.html">2月27日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-02-27 11:01</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25022609/C598C75AED38B8A5.html">2月26日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-02-26 15:01</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25022508/DC0D07AAA3FBF17C.html">2月25日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-02-25 15:10</span> </div> </li> <li class="item item-price"> <a class="tit" link="https://xinggang.mysteel.com/p/25022409/71B283EBF08D58AD.html">2月24日全国主要城市<em class='keyword'>H型钢</em>价格汇总</a> <div class="other-info"> <span class="date">2025-02-24 14:32</span> </div> </li> </ul> <div class="list-block price-box"> <a class="btn-more text-center" id="btn-price">点击加载更多</a> </div> </div> </div>  <div class="news-box"> <h3 class="title"> <span class="blue">h型钢体积表</span>相关资讯 </h3> <div class="list-block article-box"> <ul class="article-list"> <li class="item item-article"> <p class="tit"> <a target="_blank" href="https://factory.mysteel.com/06/1106/00/21A77A5A20CB1B13.html">硬面技术在冶金行业的应用调查报告</a> </p> <p class="article-content">一、硬面技术的发展得到国家各方面的重视硬面技术是提高机械零部件使用寿命的重要技术之一｡随着工业技术工艺和装备水平的发展,对机械零件提出了更高的技术要求｡除耐磨外,还要耐冲击､疲劳(交变应力)､热应力､冲蚀及气蚀､腐蚀等｡有时一个零件要同时具备多种性能,以适应部件工况的需要,硬面技术也是一项综合技术｡二十世纪中期,各国在采用硬面技术开拓对设备的维修和预保护的应用方面取得重大进展｡它以独特的工艺技术和新材料的优越性能,突出于一般的维修技术｡所以硬面技术工艺和硬面材料的发展又推动了硬面技术进步,使这一领域得到了蓬勃发展｡我国在1981年由国家经委､计委领导组织推广下,在“六五”､“七五”､“八五”连续三个五年计划中将硬面技术列入重点推广项目之一｡二十多年来硬面技术列入重点推广项目之一｡二十多年来硬面技术在冶金､机械､电力､石油､化工､航天､航空等领域得到了广泛的推广应用,新材料､新设备､新工艺､新技术不断发展,成果喜人｡原冶金工业部(现中国钢铁工业协会)自80年代初期建立了热喷涂情报网､轧辊堆焊组和热喷涂电刷镀协作组等,编印了内部刊物《热喷涂与推焊》､《热喷涂技术》,举办各种培训班,培养专业技术队伍｡在1992年､1993年､1994年和1996年召开了系统的冶金备件<em class='keyword'>表</em>面技术应用经验交流会｡伴随着国家经济体制改革､政府机构改革和企业体制机制的改革,各单位组织机构情况变化较大｡但是并没有影响硬面技术的研发和推广应用｡与此同时,冶金装备大型化､高速化､精密化的趋势,对硬面技术的应用提出了更高的要求｡新形势下,进一步推广硬面技术在冶金行业的应用工作更显重要,更加符合建设循环节约型社会的需要｡二、硬面技术应用方兴未艾,各方面积极性很高由中国钢铁工业协会冶金设备工作委员会主办,中国钢协粉末冶金分会硬面技术专业委员会承办,2006年9月13~14日在南京召开了2006年硬面技术应用经验交流会｡来自全国近百家钢铁企业､科研院所和设备制造､材料生产单位的160多位代<em class='keyword'>表</em>参加了会议｡会议的目的就是总结近年来硬面技术研发､应用､推广的经验与成果,进一步建立用户､制造单位和科研院所之间相互交流与沟通的信息渠道,探索资源整合与加强合作发展的有效方式｡钢铁企业中的非钢产业如何加强资源整合,采取多种合作方式,推进硬面技术的开发应用向规模化､专业化､高效化､规范化方向发展,不断提高市场竞争力等,都值得认真研究和思考｡实践证明,资源整合是企业作强作大最重要的运作方式｡我们一定要跳出企业自身和本地区的圈子,打破企业与行业同的界线,寻找可利用的社会资源和诚信可靠的合作伙伴,优势互补､合作发展,实现双赢或多赢,使硬面技术的应用取得更好的企业效益和社会效益｡会议通报了由美国金属学会热喷涂协会(ASM一ISS)､国际焊接学会(IIW)和德国焊接协会(DVS)共同主办的2006年国际热喷涂大会(ITSC’2006)的盛况和发展动态｡13家单位的代<em class='keyword'>表</em>在大会上进行了论文宣读和经验交流｡三､冶金行业硬面技术应用范围和特点冶金设备很多是在高温､高压､重负荷､高磨损条件下工作｡高炉､炼钢､轧钢､矿山各生产现场需要可修复的备件众多,延长备件使用寿命､提高可靠性意义很大｡冶金设备和备件的特点是有的吨位大､<em class='keyword'>体积</em>大,有的轴类和杆类细长,还往往有组合件､齿轮轴等多部位磨损,破坏<em class='keyword'>表</em>面复杂｡因此,单一的修复工艺是不能解决的,对很多备件需采用多种工艺方法联合修复以达到工况要求｡冶金系统常见易损备件主要的品类有:热风阀､铁水灌耳轴､倾动平炉大齿条､开式大齿轮､冶金浇注吊车的吊钩､连铸机的结晶器､连铸拉矫辊､钢坯输送辊､传动减速器涡轮等｡轧钢系统有:轧辊､万向联轴节的滑块､辊道输送辊､轴瓦､轴套､导位板､剪刃等｡通用机械设备有:曲轴､传动轴､齿轮､制动瓦､制动轮､凸轮､车轮､滑轮､卷筒､接手､活塞､还有冶金矿山的破碎､研磨､搅拌､过筛等零部件｡上述情况<em class='keyword'>表</em>明,冶金设备和备件的修复和预保护工作范围广泛,应用前景大有作为｡20多年来,冶金行业结合本企业设备､备件的实际情况,通过自身努力或联合攻关,从基础的埋弧堆焊､明弧堆焊､氧乙炔焰喷涂焊､电刷镀工艺应用发展到等离子喷涂(焊)､超音速喷涂､爆炸喷涂､激光熔覆等,基本形成了适合冶金设备和备件修复和预保护特点的工艺技术､相关设备和应用材料,以及有关规程标准｡四､各企业硬面技术应用取得长足进步且效益显著今年,冶金设备工作委员会和硬面技术专业委员会,对钢铁协会会员中的钢铁生产企业硬面技术的应用情况进行了信函调查,并对部分企业进行了实地考察｡从各方面了解的情况看,硬面技术的应用得到了更多钢铁企业领导的重视和支持,资金､设备､人员的投入不断扩大,实际应用效果显著｡下面简要介绍几家企业的情况｡ 1､宝钢分公司经过一､二､三期工程及“十五”规划项目的建设,宝钢分公司从国外引进了具有当时世界先进水平的炼铁､炼钢､连铸､热轧､冷轧､钢管等生产装备,生产规模发展到目前的1400万吨｡从八五年一期工程建成投产以来,主要生产线的设备已连续运转二十多年｡由于设备运行环境恶劣,零部件的磨损､腐蚀等失效情况不可避免,影响了设备的正常运行,有时还会影响产品质量｡因此,以经济的,有效的方法实施设备的维修,保持设备的功能与精度,保障生产的连续顺利,硬面技术的应用对提高零件<em class='keyword'>表</em>面性能,延长使用寿命,降低设备维修费用是一种直接､经济､有效的方法｡同时还有益于机组作业率,机组产量与产品质量的提高｡近年来宝钢分公司紧紧围绕“降低成本,保障生产”这一中心,大力研究开发以提高部件使用寿命,促进维修成本下降为目标的硬面技术应用工作取得了良好的效果｡宝钢分公司1930mm､1450mm四台板坯连铸机主机设备均从国外引进,作为连铸机主要部件的连铸辊及堆焊修复工艺技术也从国外引进｡引进的连铸辊为R72材料,<em class='keyword'>表</em>面堆焊1 Crl3 NjMo,弧形段使用寿命约2500炉,水平段使用寿命约5000炉｡四台连铸机(不包括2004年12月投产的2300mm宽厚板连铸机)连铸辊总装机量2320根,每年投入堆焊修复与采购新部件的费用很高,为减少连铸辊的消耗,降低维修费用,对连铸辊的失效机理､连铸辊辊体材料及热处理工艺､堆焊层材料与堆焊工艺等进行了系统性研究｡通过研制新的堆焊焊带､焊剂以及配套堆焊工艺,改善堆焊层的组织与性能,大大提高了连铸辊的抗冷热疲劳,耐高温氧化腐蚀和耐磨损性能,弧形段连铸辊使用寿命提高到约5000炉,水平段连铸辊使用寿命提高到约10000炉｡激光<em class='keyword'>表</em>面改性是八十年代以来迅速发展的新技术,碳钢､合金钢等经激光<em class='keyword'>表</em>面改性处理后,其抗磨耐蚀及抗高温氧化性能均得到很大提高｡宝钢分公司在对激光<em class='keyword'>表</em>面强化,激光熔覆技术的应用上进行了有益的尝试,取得了较好的效果｡宝钢分公司热轧厂1580单元飞剪转鼓扃头平面异常磨损,单边磨损量达1.5mm,转鼓扁头与转动叉头间隙超差,引起传动系统异常振动｡转鼓材料为SF590(JIS标准),制造精度高,采用堆焊方法修理风险大,采用激光熔覆的方法进行修复｡先在转鼓扁头<em class='keyword'>表</em>面熔覆2mm厚镍基合金,再经机械加工,恢复到原图纸要求｡转鼓扁头由于选用了加工硬化特性好的镍基合金进行<em class='keyword'>表</em>面激光熔覆修复,<em class='keyword'>表</em>层材料得到了强化,耐冲击磨损性能大大提高,经四年多的生产使用,尺寸基本保持不变,取得了较好的效果｡宝钢分公司炼铁厂焦炉CDQ排出装置旋转阀的密封环外经为φ1800mm,宽60mm,厚8mm的薄板零件,原进口件为特种钢材料｡旋转阀修复时,采用45号钢代替,为保证密封面的耐磨性,采用激光进行<em class='keyword'>表</em>面强化处理,<em class='keyword'>表</em>面硬度达到HRC52,硬化层深度达0.5mm,保证了密封环的性能｡热喷涂工艺在冷轧厂1420单元连轧机组的测张辊､酸洗机组破磷辊､拉矫机工作辊､矫直辊,1800单元热喷锌机组的张力辊的应用,辊子使用寿命明显提高｡2030单元热镀锌机组的沉没辊,原先为光面辊,使用寿命约为一周｡采用耐熔融锌液浸蚀､耐磨的涂层进行热喷涂处理后,辊子的使用寿命提高到三周,因沉没辊原因引起的镀锌板<em class='keyword'>表</em>面质量问题得到了有效解决｡宝钢分公司在几年的实践中探索出了一条适合生产需要的,适应工况的,技术与经济相结合的,以提高备件使用寿命促进维修成本下降为目标的<em class='keyword'>表</em>面处理技术应用和开发工作｡未来的几年宝钢分公司将从以下几方面推进硬面技术的推广应用｡ (一)跟踪热喷涂新技术,推进装备､工艺的升级优化,加快推进对涂层材料的应用研究,建立系统的､相对完善的应用技术标准｡ (二)推进耐磨复合钢板的应用研究,扩大复合耐磨钢板在易磨损风机上的应用｡推动耐磨复合钢板在其它设备上的应用,系统掌握相关应用技术｡ (三)继续探索研究激光<em class='keyword'>表</em>面改性技术在备件修复中的应用,进一步提高轴类和辊类零件的使用寿命｡ (四)跟踪和消化国内外先进经验,根据宝钢分公司实际,有针对性的开展轧机支撑辊的堆焊修复技术研究｡ 2､宝钢集团上海梅山科技发展有限公司该公司创立于2000年12月,是集<em class='keyword'>表</em>面处理技术､合金铸件､电渣重熔钢等产品开发､生产与服务为一体的科技型企业｡公司依托上海梅山钢铁股份有限公司技术中心雄厚的科研实力,建立完善的质量保证和质量监督体系,硬面技术应用快速发展｡目前已形成了以埋弧堆焊､明弧堆焊､氧乙炔喷焊､激光重熔为主的四大<em class='keyword'>表</em>面修复技术,超音速喷涂技术已进入应用开发｡近几年来采用硬面技术先后为梅钢､上海一钢､南钢､马钢等单位预保护或强化修复了各类辊道,如冶金企业的大型工作辊､支撑辊､连铸辊､切割辊､花盘辊､切前辊､大小立辊､层流辊､冷轧支撑辊､等工件的强化修复,激光熔覆修复大型电机主轴､机械传动轴､高炉渣口小套,激光合金化硬化各类辊道､导板等,创造出可观的经济效益｡仅2005年产值达3000余万｡ 2004年采用DL—HL一T5000大功率激光器成功的对高镍铬带钢精轧辊进行了激光<em class='keyword'>表</em>面强化处理,解决了高镍铬轧辊<em class='keyword'>表</em>面强化难题｡ 3､首钢开源服务中心激光部(京首富通公司) 从2001年创建以来全身心致力于激光技术的产业化应用｡通过不断的努力,在激光强化与修复方面取得了系统性的突破,实现了光､机､电一体化激光<em class='keyword'>表</em>面改性技术与传统工业的融合,在增收节支工作中取得了明显的效益｡同时也为激光技术的产业化提供了广阔的应用领域｡初轧厂开坯轧辊原来每年耗资1亿元人民币,每两天更换4根｡采用激光<em class='keyword'>表</em>面强化工艺后,原始硬度HRC23—28,处理后提高到HRC57,现在寿命提高1倍以上｡过钢量由原来的7000吨提高到了19000吨｡中板厂矫直机轧辊也是消耗比较大的备件之一｡对材质是9Cr2的重轨矫直辊进行了激光处理,其过钢量由8000吨提高到了三万吨,使用寿命延长3倍多｡热连轧机的R1和R2粗轧机工作辊,经激光处理后,<em class='keyword'>表</em>面硬度由原来的HRC38—42提高到HRC50—52,经上机使用,吨钢辊耗有了明显降低,节省了换辊时间,提高了单位时间的过钢量｡Rl过钢量由1.5万吨提高到2.74万吨,提高0.8倍以上｡R2过钢量由0.7一0.9万吨提高到1.9万吨,增加了两倍多｡ 4､鞍钢西部机械厂是鞍钢重型机械有限责任公司所属的冶金机械加工､制造､机械备件强化､修复､预保护专业化生产厂家｡西部机械已有几十年的硬面技术应用历史｡在同行业有一定的知名度,积累了大量的硬面技术应用业绩｡率先通过了ISO9002质量体系认证｡硬面技术应用初期,主要以服务鞍钢为主,对鞍钢主体单位冶金备件修复､预保护为基础｡例如:炼铁的钟､斗､阀门堆焊､浸润处理､布料}留槽的堆焊,炼钢的以连铸辊为代<em class='keyword'>表</em>的辊子的修复,轧钢以轧辊的修复､天车走行轮的修复｡在硬面技术的交流､引进方面做了大量的工作,积极参加行业组织的各种会议､展览,与科研部门､材料生产厂家､同行全面合作,共同开发新技术､新材料､新产品,共创双赢局面｡鞍钢大板坯连铸线连铸辊,从1988年开始制造和修复,现主要修复φ300×1600､φ310×1600､(φ350×1600几种规格｡其中前两种规格正常情况下使用寿命6个月,过钢量约60万吨,第三种使用寿命18个月,过钢量约180万吨,月修复量约100支辊子｡一炼钢小方坯连铸线连铸辊,主要修复的规格为φ325×250､φ325×500､φ325×1500三节辊｡一个段位为24支辊,2支三节辊｡使用寿命一年,年过钢量250万吨｡近几年来,西部机械厂先后为鞍钢修复φ850型材轧辊､φ950型材轧辊､φ1100型材轧辊､φ1150型材轧辊､和φ1180热轧支撑辊｡ 2005年由于鞍钢大型厂产品结构的调整,相应的对φ1150轧辊的孔型也进行了改变｡使一些部位堆焊厚度达φ360mm,而以前堆焊厚度为φ100mm,给堆焊修复带来了很大的难度｡通过对轧辊结构特点的分析,有针对性制定修复方案,使这对轧辊得以修复｡现在这对轧辊正在生产线上使用,过钢量超过技术协议要求｡ 2006年先后为齐齐哈尔､山东青钢､山西､大连等企业修复了φ900×1400冷轧支撑辊､φ1250×1350热轧支撑辊､φ1100×2600热轧工作辊等｡目前正在开发修复φ1550×2800规格的大型热轧支撑辊｡2005年完成产值10620万元,为冶金工业做出了重大贡献｡ 5､莱芜钢铁股份有限公司近几年产能不断扩大,目前已达到年产1000万吨的生产能力,备品备件的消耗非常大｡几年来在硬面技术应用方面取得了一些成绩,在轧辊堆焊修复､轧辊激光处理､连铸辊堆焊修复､转炉烟道喷涂等领域进行了研究,为莱钢提高备件使用寿命,降低生产成本做出了一定的贡献｡ BD轧辊是<em class='keyword'>H型钢</em>生产中的重要备件｡其在使用过程中出现磨损､疲劳而导致报废｡莱钢自2001年开始对BD轧辊堆焊修复与有关厂家进行修复再生试验研究,采用堆焊的方法对BD轧辊进行再生,并通过合金成份的调整,对轧辊进行<em class='keyword'>表</em>面强化,达到再生和强化的双重目的｡BD轧辊按照目前价格每对新辊约需人民币120万左右,且BD轧辊新辊订购周期长达一年｡修复一对约需人民币55万元,节省购置新品费用(125—55)×16=1040万元｡随着冶金工业的发展,连铸､连轧已经成为钢铁工业现代化的重要标志｡于连铸机而言,大板坯､大方坯､圆坯及薄板坯连铸机的各段辊子是消耗量最大的备件｡实践已证明连铸辊及其它部件占连铸机总维修费的30%,而连铸辊子备件订购周期长价格贵,因此提高连铸辊的使用寿命是降低连铸成本,提高连铸机作业率的重要措施｡莱钢每年就这两台连铸机就需有3000余支辊子需要堆焊修复｡连铸辊新辊市场价格约为60000元/t｡采用明弧堆焊后,价格约为新件价格的1/10,莱钢每年发生堆焊维修费用1200万元左右,堆焊修复的辊子<em class='keyword'>表</em>面质量及硬度均比新辊质量要好,寿命普遍较新辊高,仅此一项每年可节约备件费用约400万元｡激光<em class='keyword'>表</em>面强化技术在BD轧辊中应用以后,轧辊的硬度由原来的HSD38左右提高到现在的HSD50左右,轧辊的耐磨性有了明显改善,单次过钢量提高到目前的1.8倍,降低了辊耗,延长了轧辊使用周期,年可降低生产成本800—1000万元,为型钢厂带来了可观的经济效益和社会效益｡热喷涂技术作为<em class='keyword'>表</em>面强化工艺在转炉汽化冷却烟道上得到了很好的应用｡烟道寿命大大提高,使烟道寿命与转炉炉衬寿命同步,使烟道年修与炉衬更换同步,节省了维修时间,使生产组织顺行,极大地提高了经济效益｡ 6､攀枝花钢铁股份有限公司 2000年以来,硬面技术的应用范围涉及攀钢几十家厂矿企业,用于发展硬面技术的专项投入就高达400万元,组建了专业化车间,集中设备资源､技术力量专门从事硬面技术工作的开展｡从高炉设备到矿上耐磨备件,从简单修复到新品预保护,进口备件国产化,解决不少攀钢生产中的急难事项｡六年来,预保护和修复的各类备件一百多项,数量仅连铸辊一项就达4000多只,累计产值近1.5亿元,利润超过2000万元,取得了显著的经济效益和社会效益｡根据攀钢高炉的特殊工况条件,对大钟､小钟中心喉管､溜槽及备类阀门､阀座､管头､管座等分别采用堆焊硬质合金浸润WC的方法进行预保护,使寿命与高炉大修同期同步,大大减少了高炉停机检修的时间,提高了高炉的利用系数,确保了高炉的稳定高效生产｡攀钢现有方坯连铸两条､板坯连铸两条,其在线连铸辊量达到1500多支,使用前均要进行<em class='keyword'>表</em>面强化｡根据不同的规格､型号､区段的辊子,选择不同的强化方法和强化材料,进行<em class='keyword'>表</em>面强化预保护或修复,大大提高了连铸辊的使用寿命｡通过<em class='keyword'>表</em>面强化后的连铸辊平均寿命达到10个月,最长寿命达24个月,是原有的5—8倍,显著提高了连铸生产率｡攀钢应用非常成功的产品还有:热轧支撑辊､助卷辊､托卷辊､弯曲辊､夹送辊等热轧系列辊道､冷轧支撑辊､工作辊修复｡在广泛应用堆焊､浸润技术的同时,也在不断发展刷镀技术､热喷涂技术｡2001年采用等离子喷涂､电弧喷涂对面积达四百多平方的炼钢转炉除尘系统中的文氏管内<em class='keyword'>表</em>面成功进行预保护,安装使用后,寿命由原来的半年提高到了3年,效果十分显著｡五､硬面技术推广与应用意义重大,市场潜力和前景广阔国家在“十一五”发展规划中将循环经济的基本原则高度概括为:“减量化､再利用､再创造”｡这是具有中国特色的循环经济模式｡由于再制造是以废旧产品为对象,在保持零(部)件材质和形状基本不变的情况下,运用高技术进行修复,运用新的科技成果进行改造的过程,虽然也要消耗部分能源､材料和一定的劳动投资,但是它充分挖掘了蕴含在零(部)件中的材料､能源和加工附加值,使经过再制造的产品性能达到或超过新品｡硬面技术的应用完全体现了这种理念,这种精神｡发展硬面技术应把先进设备､先进技术､先进工艺的引进吸收消化与自主创新相结合,形成自身的核心技术,始终保持充足的发展后劲和强有力的竞争力｡发展硬面技术应优化各方面资源,走科研､生产一体化,厂矿､院所合作的道路｡一方面使科研项目有针对性和可应用性,及时解决生产所面临的难题｡同时也使科研成果能够在最短时间内转化为生产力,充分发挥其技术资源效能｡另一方面,生产制造中的技术难题能够在最短时间内得到解决,同时也保证了企业的产品质量和技术实力始终处于同行业的领先水平｡为了适应钢铁工业发展的新形势,不断提高行业设备管理水平,为企业生产经营提供有力的技术装备保证条件｡中国钢铁工业协会冶金设备工作委员,对钢铁企业“十一五”设备管理目标提出了要求:“通过几年的努力,全行业设备管理水平应得到全面提升｡对重点大中型钢铁企业主要生产设备､备件应加大消化吸收､技术创新和集成的工作力度,不断形成自主技术｡到20lO年进口设备､备件的国产化率应达到80%以上,国产通用设备备件逐步实现零库存和采购基本实现电子商务交易;备件资金周转天数应在200天以下｡按金额计算,备件修复率应达到20%以上;全年修理费占产品制造成本应控制在3.5%以内”｡硬面技术在冶金行业的推广与应用意义重大,市场潜力和前景广阔｡希望硬面技术应用在各企业实现设备管理目标中,起到应有的作用｡。</p> <p class="other-info"> <span class="info-tit">普钢</span> </p> </li> </ul> <a class="btn-more text-center" 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