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介绍了高强度钢板应用在汽车领域的主要优点,对世界范围内高强度钢板领域的相关专利进行分析研究,分析了日本新日铁高强汽车钢板的专利,研究了知识产权策略,并给我国钢铁企业提出了一些建议。 相似文献
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汽车更轻和更安全是人们一直努力追求的目标,采用高强度钢板能为实现这个目标做出贡献。经过多年研发,武钢已开发出一系列的高强度汽车用钢板,使用这些钢板能使汽车减重并提高汽车的安全性。为满足汽车工业的需要,武钢今后将开发更高强度的汽车用钢板。 相似文献
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采用弛豫控制析出+加速冷却(RPC+ACC)和超快速冷却+加速冷却(UFC+ACC)2种不同冷却工艺试制低裂纹敏感性钢板,结合显微硬度、SEM及TEM技术分析了冷却工艺对显微组织及力学性能的影响。结果表明:RPC+ACC工艺试样的屈服强度和抗拉强度比UFC+ACC工艺分别要高170 MPa和65 MPa,而且维持了相同的冲击韧性。获得含有大量位错胞的板条贝氏体组织,且不同尺寸的板条贝氏体被亚结构或位错墙分割,出现相互交错排列是RPC+ACC冷却工艺提高强度的主要机制。 相似文献
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我国汽车钢板研究与应用进展 总被引:9,自引:0,他引:9
对我国近年来超深冲IF钢板、镀锌板、高强度钢板、剪裁拼焊毛坯的研究进展以及替代进口钢板所取得的成果进行了评述,通过和国外同类型钢板的力学性能,表面质量的对比,指出了尚存在的差距和改进方向特别强调进一步研究开发应用各类高强度钢对于汽车减重,节材,节能,环保的重要意义。 相似文献
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概述了汽车用薄钢板和硅钢片的现状与未来展望。指出对于薄钢板,应该尽量降低因提高强度而导致的成形性的恶化,同时论述了获得有利于车体轻量化的现代高强度钢所适宜的显微组织及其制备的物理冶金方法。讨论了混合型汽车电机铁芯要求的电磁性能,认为降低高频区的铁损非常重要,并可以通过钢的纯净化和织构的适宜控制得以实现。 相似文献
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本文根据安赛乐米塔尔和蒂森克虏伯世界著名钢铁公司2008年在世界知识产权组织(WIPO)申请公开的典型专利技术,概述了汽车用结构件、加强件或外挂件等用途的900MPa级孪晶诱发塑性钢,即TWIP钢的最新研发动态,特别是详细介绍了生产高强度、高塑性以及具有优良涂镀性的开发技术方案。开发钢可以以热轧板、冷轧板及镀层板形式交货。 相似文献
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The steels were rolled at 3 different finishing temperatures. The mechanical properties were tested by tensile tests. The results show that as finish rolling temperature decreases from 620 to 560 ℃ in ferrite region, the deep drawability of ferritic rolled P added high strength IF steels is improved, and r value rises from 114 to 137. Finish rolling temperature (FT) has less influence on other mechanical properties, such as yield strength, tensile strength and elongation. Microstructures of hot rolled and annealed steel sheets and precipitates of annealed steel sheets were also analyzed. 相似文献
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《Baosteel Technical Research》2010,(Z1):50
The surface treatment technology can improve the corrosion resistance of steel sheets and increase the value of steel application.The surface treated steel sheets in Baosteel include zinc galvanized steel sheets,sin galvanized steel sheets,chromium galvanized steel sheets,and colour coating steel sheets with the application in the area from construction to automobiles,appliance,package,etc.The development,application and manufacturing technique of these products have become the core competition power of Baosteel. The article reviews the developments of surface treated steel sheets and surface treatment technologies in Baosteel in 10 years,especially hot dip galvanized high strength steel products used in vehicles.The article also looks forward into further developments of surface treatment steel products and technologies in Baosteel,which will focus on:①the new products of hot dip galvanized advanced high strength steels;②more environmental friendly products or functional coating products;③the development of surface treatment technologies to meet the requirement of higher surface quality in the marcket;④new type of surface treatment and coating technologies. 相似文献
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《Baosteel Technical Research》2010,(Z1):50
Shougang Group has carried out a strategic structure adjustment in order to realize the promise of Chinese people to the Olympic Games.Automotive sheets are chosen as a type of strategic product and an engine to upgrade enterprise management,technology and operation to reach the top international level during the transition from long products to steel sheets in Shougang Group.Since 2006,Shougang Group has made an elaborate preparation on steel sheet culture,production line construction,technology import,pilot plant and talent reserve.It lays the foundation for the development of automotive sheets.The developing history of cold rolled automotive sheets is reviewed and the research and development of cold rolled automotive sheets, tackling key problem of defect on surface and the latest progress of automotive sheets construction are described in this paper.The main contents were given as follows:①The products of automotive sheets realize zero breakthrough in Shougang Group.Monthly output was 300 ton in January,2009 and it increased to 48 000 ton in June,2010.The ratio of IF steel sheets increases to 70%from 40%.The proportion of outside panel in automotive sheets occupys more than 15%.②A high emulational pilot plant is used as a product developing platform to develop successfully automotive sheets with 1 000 MPa and below.It guarantees that the industrial development of DP and TRIP sheets gets success at a time.It covers continuous annealing sheets with tensile strength≤780 MPa and galvanizing sheets with tensile strength≤590 MPa.③Individual design is used to meet special requirement of customer.Shougang owns 23 inner brands of LCAK and IF steels.It insures that the grades of yield strength cover whole range from 120 to 270 MPa.It keeps the stabilization of steel performance by means of chemical composition control and high accuracy rolling technology.For example,the strength of soft steel fluctuates within±15 MPa.④The steel sheets with surface grade O5 are produced steadily by solving forming striation of IF steel,grain coarse on surface,edge curling skin and mountains - and - waters painting defects.⑤The safeguard mechanism on quality of products is improved steadily and the output of automotive sheets and outside panel increases greatly by building consistency quality management system、information - system and customer service system. 相似文献
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简要介绍了汽车紧固件用钢的性能要求,冶炼及轧制的特点;对相关的洁净螺栓钢、微合金非调质钢、免退火钢、硼钢、耐延迟断裂高强钢的现状和发展动向进行阐述;指明了实施汽车紧固件用钢国产化的努力方向。 相似文献
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研究304奥氏体不锈钢薄板的硬度随冷轧变形量的变化规律,为奥氏体不锈钢薄板工业生产提供指导。同时,采用金相显微镜、维氏硬度测量、X-射线衍射仪和透射电镜研究了不同变形量冷轧对304不锈钢显微组织和机械性能的影响。在室温对0.5mm厚退火板材进行冷轧,使冷轧变形量从10%增加到52%。结果表明,形变诱发马氏体相变是导致304不锈钢冷轧时产生加工硬化的主要原因,冷轧可以显著提高钢的强度和硬度。当冷轧变形至40%时,304不锈钢的维氏硬度是未变形时的2.2倍,屈服强度、抗拉强度分别增大到未变形时的4.2倍(880MPa)和1.8倍(1312MPa)。 相似文献