共查询到20条相似文献,搜索用时 390 毫秒
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本文对有色金属带材拉弯矫设备中开卷机和卷取机卷筒的扇形板在加工过程中的工艺路线、加工难点、关键工艺进行了分析总结,并设计了加工中所需工装,为保证扇形板的加工质量提供参考。 相似文献
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针对热轧平整机组开卷机卷筒扇形板的防护,系统分析对比了渗氮、镀铬、等离子喷涂APS(Air Plasma Spraying)及超音速火焰喷涂(HVOF)等常用表面处理技术的特点。基于HVOF具有涂层结合强度高、硬度高、耐磨性能好、孔隙率低及可多次修复使用等优点,重点研究了两种粉末WC-12Co和WC-CrC-Ni经0°,15°,30°不同喷涂角度制备试样的显微形貌、硬度、沉积率、耐磨性等。确定了涂层粉末和最佳喷涂工艺参数,并将其用于卷筒扇形板的实际表面处理中,使用效果良好。 相似文献
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极薄板生产要求较小的开卷机卷筒,卷筒主轴截面尺寸受到限制,在承受高速、重载、大冲击的工况下进行疲劳强度校核十分必要。以宝钢极薄板平整机开卷机为对象,分析主轴应力状态及静态挠度,计算疲劳强度,优化设计,提高安全系数。 相似文献
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对热轧卷筒扇形板的热变形进行了有限元计算分析,找出了该扇形板异常磨损的根本原因,并对扇形板的间隙进行了优化,实施后大大延长了卷筒的使用寿命。 相似文献
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针对不锈钢事业部1 780 mm生产线生产的410S不锈钢在平整机组重卷时经常产生挫伤缺陷的质量问题,从工艺、设备、原料和测量等方面分析了挫伤缺陷产生的原因.结合1 780 mm平整机组自身的特点,对开卷机的接卷操作方式、开卷张力参数、张力单元中张力辊的投用方式和开卷机油缸工作压力等进行调整,并应用于生产实际,有效控制410S不锈钢表面挫伤缺陷. 相似文献
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宝钢用后耐火材料的技术研究与综合利用 总被引:7,自引:0,他引:7
在钢铁企业中,耐火材料的消耗与钢铁产量的比例大约在10~30 kg/t.宝钢分公司耐火材料的消耗也在9.6kg/t左右,而废弃的耐火材料约占消耗量的45%~50%.以往这些用后残存耐材都被作为工业废弃物处理,这不仅加重了企业的经济负担,而且更重要的是浪费了可利用的资源、增加了社会的环境负担.研究已经表明,这些用后耐火材料中的大部分具有再利用价值.应以钢铁企业循环经济的模式,组织耐材的使用、回收再利用、再生产使用的闭路循环过程,减轻环境负担,实现可持续发展. 相似文献
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X射线荧光测量技术在冷轧镀锌处理线的应用 总被引:1,自引:0,他引:1
为了提高镀锌产品质量及降低生产成本,锌层测量技术在近年来得到了快速的发展.宝钢分公司冷轧厂3#热镀锌等机组使用了目前钢铁行业中最先进的涂(镀)层厚度(质量)测量系统,即X射线荧光冷态涂(镀)层测厚仪测量系统.X射线荧光测量法作为一项非接触、快速检测带钢表面涂(镀)层厚度的成熟技术能够充分满足冷轧镀锌处理线高速、自动化生产的要求,在国内外各大钢厂的冷轧镀锌处理线上得到了越来越广泛的应用.以宝钢分公司冷轧厂3#热镀锌等机组的实际应用及其优化措施为例,通过对X射线荧光测量技术的原理分析,结合在处理线的选型和最佳安装位置的确定等,较为全面地介绍X射线荧光测量技术的工程应用. 相似文献
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西气东输工程用大口径X70输气管线用板卷的研制 总被引:3,自引:0,他引:3
宝山钢铁股份有限公司开发研制的针状铁素体型X70大口径输气管线用板卷钢已应用于西气东输管线工程.与贫珠光体(含有少量的珠光体)组织类型的X70管线钢相比,新开发的针状铁素体型X70管线钢板卷在具有高强度的同时,具有更高的低温冲击韧性、低的韧-脆转变温度以及高的抗动态撕裂能力.其优良的性能得益于具有与细小析出相交互作用的高密度位错的超低碳针状铁素体组织. 相似文献
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在采用推移方法对宝钢电工钢产品的1550酸轧工序前后的库存水平进行调查分析的同时,运用边际分析法对其最优安全库存进行了理论测算,发现在库存成本控制上仍存在较大的下降空间.在优化切换批量后,其库存出现明显下降.成功而有效的实践结果表明,在不增加额外生产成本的前提下,适当增加切换次数,增加了生产柔性,有利于低库存控制. 相似文献
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《钢铁研究学报(英文版)》2011,(Z2):36-41
The development of clean steel technology at Baosteel can be dated back to the first production of IF steels and pipeline steels in the early 1990s.Now the technology has gradually covered nearly the whole range of products.This progressive development is introduced in the overview including the levels of cleanliness for some steel grades at Baosteel.The technologies at different processes for the production of clean steel and the removal of some impurity elements in molten steel are also discussed.Suggestions are given on the future research and development of clean steel technology at Baosteel in the aim to keep a sustainable development,which should focus on the basic research,inclusion control and making efficient use of inclusions,as well as stable and reliable low-cost manufacturing technology,removal of harmful residual elements,and the expanding of the technology to stainless steels and special steels. 相似文献
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《Baosteel Technical Research》2010,(Z1):98
To improve the quality of outstanding products like automobile steel sheet etc.,Baosteel has spared no efforts to the studying and application of Baosteel integrated process control(BPC ) and diagnosis technology.In the light of the running mode of integrated process control,analysis and diagnosis,Baosteel has realized the full process including steel making,hot-rolling,cold-rolling data traceability.The research and implementation practice of the BPC systems,which specialized on iron and steel manufacturing process,mainly based on the key input variables(KIV) and keyoutput variables(KOV),has been constructed on the plant level and corporate level.Based on the BPC system,Baosteel has established a data processing platform to monitor and analysis the process data,puts forward a efficient data gathering technology,which directly gather the data from the cross-platform of different kinds of systems,such as the plant level process computer,PLC, DCS,PCS etc.In the mean time,a unique mass data processing technology has also been developed.The system can be used to reveal the latent rules between KIV and KOV during the melting and rolling of steel products.This artcal takes the cold products for example to explain the model establishing,applying and optimizing the design between the KIV and the KOV,aims to advance the products capability.During recent years,the BPC technology has been gradually developed from the point to the line,from the line to covered the plane,it has integrated the information technology,the statistical process control technology,the quality diagnosis technology into the steel products integrated management.The BPC system has been developed as a product quality management technology fulfilled with characteristic elements and efficiency,a unique path to continuously enhance the steel products performance. 相似文献