铜价高位震荡加剧

2009年9月，铜市呈现高位盘整格局，后期宽幅震荡不可避免。美元贬值压力在加大，商品价格有望从中再获支撑。国内进口需求对推动国际铜价上涨基本告一段落，后市重点关注欧美经济的复苏情况及国内房地产市场走势。     

高线粗中轧轧机选型优化及主减速机改型设计

通过对比分析国内高线粗中轧轧机的工作特点，优化了轧机的选型，通过国内粗中轧主减速机使用工况的考察，完善了主减速机的结构及重要参数，不仅为安钢高线粗中轧主机列的可靠运行奠定了基础，而且为轧钢工艺水平的进一步发挥创造了条件。     

1995年国内钢材市场回顾及1996年预测

１９９５年国内钢材市场回顾及１９９６年预测方尊，张明臣综观１９９５年国内钢材市场的发展变化，上半年虽然出现了短暂的＂回升＂，但随后就是长时间的冷清，全年的形势是平稳中小幅下滑。新的一年国内钢材市场走势如何？再次成为人们关注的焦点。１９９５年底，冶金部...     

国内外锰矿选矿工艺概况

本文首先介绍世界锰矿资源的分布状况和我国锰矿资源的嵌布特征以及矿床成因类型；其次针对国外不同类型锰矿石的共生关系及嵌布特性，阐述国外锰矿石的分选工艺概况及分选中存在的问题；最后结合国内锰矿石特点，列举六种国内锰矿选矿工艺，并提出全球范围内锰矿资源利用中普遍存在的问题。     

商用飞机起落架用单真空300M钢疲劳性能控制现状及展望

根据国内商用飞机起落架用300M钢研究和生产现状，介绍了国内单真空300M钢生产工艺以及疲劳性能控制现状，分析了国产单真空300M钢疲劳强度与抗拉强度、断裂韧性的对应关系，以及疲劳起裂过程中非金属夹杂物种类、喷丸强化作用等，展望了国内商用起落架300M钢未来市场潜力及大尺寸、高性能的绿色发展方向。通过研制攻关，国内形成了商用飞机起落架300M钢单真空冶炼技术，抚顺特钢和宝武特冶已建立了单真空300M钢生产体系且具备批量供货能力。研制生产过程中还需重点关注材料的批次稳定性、纯净度及疲劳性能，加强生产过程控制，持续优化熔炼和锻造工艺，降低能耗及成本，积累数据并完善材料标准体系，同时研制Φ1 080 mm及更大锭型的单真空300M钢，在质量、标准、成本及认证等方面与国际全面接轨。     

高强度工程机械用钢应用现状和发展前景

随着工程机械向装备大型化、轻量化及重载荷等方向的发展，高强度钢使用比例和质量要求都有较大提高。国内高强度工程机械用钢的研发及生产已取得快速进展，但在行业标准的统一制订、品种开发及产品质量等方面普遍存在差距。文章对目前国内工程机械用钢的需求发展趋势、国内供给情况及存在问题等进行了分析，为国内工程机械用钢的发展突破提供参考。     

碳酸锰矿硫酸浸出过程中锰及杂质元素的热力学行为初探

根据国内碳酸锰矿中元素的赋存状态，通过热力学计算，探讨了碳酸锰矿硫酸浸出过程中锰及杂质元素热力学行为，提出了碳酸锰矿原料的选择要求及浸出过程中pH值的控制原则。     

诱导法脱砷技术在铜电解液净化系统中的应用

本文是作者消化了引进的诱导法脱砷技术，将其应用于国内几家工厂的铜电解液净化系统的设计中之后，对诱导法脱砷技术所作的进一步探讨。文章着重论述了诱导法脱砷技术的工艺原理、操作条件的选择、计算、设备的特点及环保效果，介绍了诱导法脱砷技术在国内一些工厂的应用情况，提出了一些存在的问题及建议。     

耐候性结构钢SPA—H热轧中宽钢带的开发

针对唐山建龙实业有限公司的中宽带生产设备，分析了国内及国际集装箱用钢的需求，进行了耐候性结构钢,SPA—H热轧中宽钢带的开发，对其生产工艺进行了研究。     

红透山铜矿深部开采技术的现状和对策

本文介绍了国内有色矿山最深的矿井深部开采技术中采用的两步骤回采方案，顶底柱回采方法，空区处理方法，存在的问题及解决这些问题的思路     

国内外热作模具钢的研究进展

介绍了国内外传统和新型热锻、热挤压和压铸用热作模具,以及特殊用途热作模具的钢种和特点;热作模具钢热处理和表面处理技术的研究进展。提高模具钢纯净度、均匀和细化组织,用计算机模拟技术开发热作模具钢新钢种是目前提高热作模具钢寿命的重要方法。     

国内外易切削钢的现状和研究进展

易切削钢比普通碳素钢有较好的切削性能和更好的产品表面光洁度。随着自动化加工工业和汽车工业的发展,易切削钢的使用量不断增加。目前,国外普遍采用电弧炉二次精炼连铸流程生产易切削钢。工业化国家切削钢已形成标准化系列产品,并伴随连铸技术的广泛采用,使易切削钢具有均匀的切削性能。现有易切削钢种为易切削碳钢、渗碳钢、调质钢和不锈钢,并不断将易切削钢扩展到诸如模具钢、高锰钢、耐热钢、高工钢等钢类。在分析国内外易切削钢发展的基础上,讨论了易切削钢生产工艺、钢种的发展方向。     

我国塑料模具钢的发展前景及应用现况

在简要介绍我国模具工业和模具钢概况的基础上，重点介绍了我国塑料模具钢的应用现状和发展概况，并提出面对模具钢市场需求，模具钢生产企业的应对措施．     

我国塑料模具钢的新近进展

系统地综述了我国塑料模具钢研制开发的新近进展，介绍了新型塑料模具钢的化学成分、性能和应用，并对我国塑料模具钢今后的发展提出了建议。     

Alloying Design for High Wear-Resistant Cast Hot-Forging Die Steels

The alloying design of cast hot-forging die steels was analyzed. The relationship of the life of cast hot-forging dies with the failure patterns was studied. The thermal wear resistance was believed to be the key property for the alloying design of cast hot-forging die steels. The alloying design parameters were selected and optimized for the cast hot-forging die steel with high wear resistance. The wear resistance of the optimized cast die steel was evaluated in comparison with commercial H13 steels and 3Cr2WSV steel. In the new cast hot-forging die steel, VC is predominant carbide with Cr and Mo as the main solution elements in α-Fe. It is found that the cast die steel has significantly lower wear rate than normal H13 steel and 3Cr2W8V steel, almost the same as that of high purity H13 steel. The high wear resistance of the new cast hot-forging die steel can be attributed to its reasonable alloying design and nonsensibility to the detrimental function of S and P.     

Reindustrialization principles in the heat treatment of die steels

The reindustrialization of production is considered. As an example, a working model is developed for the heat-treatment equipment used in the production of dies made from special steels. In reindustrialization, productive capacity that has been lost or has grown outdated during deindustrialization must be restored or modernized. Heat treatment is of particular importance since it is part of the manufacture and restoration of most tools. Modern Russian equipment permits high-quality heat treatment of many special steels so as to ensure the required mechanical properties. All the basic groups of die steels are considered in terms of their performance: steel of increased wear resistance; secondary-hardening crumple-resistant steel; steel with elevated impact strength; steel of moderate thermostability and high ductility; steel of elevated thermostability and ductility; and steel of high thermostability. The requirements on the properties of these groups are analyzed, and possible means of attaining those properties by heat treatment are identified. By comparing the specific purpose of die steels, their required properties, and the possible means of attaining those properties by heat treatment, the appropriate equipment is chosen. Modern Russian equipment permits high-quality heat treatment of die steels so as to ensure the required mechanical properties. At present, it is important to create production systems that incorporate the vast wealth of Russian specialists’ accumulated experience and the best available technologies. This is a very complex problem, in both engineering and economic terms.     

新型大截面预硬型塑料模具钢3Cr2MnNiMo的加工性能研究

结合硬度测试及显微组织分析，对国产塑料模具钢3Cr2MnNiMo与ASSAB718钢的切削加工性能进行了对比性研究。结果表明：新型3Cr2MnNiMo钢的加工性能较好；组织不均匀和非金属氧化物夹杂的存在是3Cr2MnNiMo钢的切削加工性能略次于ASSAB718钢的主要原因。     

海洋平台用钢的研发生产现状与发展趋势

介绍了国内外海洋平台用钢发展现状,总结出海洋平台用钢生产的主要特点,对传统海洋平台用钢的成分、工艺、组织、性能特征及其局限性进行了分析,提出了开发"Mn/C"合金化新型高强韧海洋平台用钢的发展思路,对海洋平台用钢今后的发展趋势加以展望。鉴于我国高级别海洋工程用钢与国外相比仍存在一定的差距,关键产品还依赖于进口,今后应重点研制屈服强度为690 MPa级的海洋平台用高强韧钢。     

Overview:Development of Clean Steel Production at Baosteel

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.