电镀锌钢板有机复合涂层的研究

研究一种新型的有机复合涂层钢板（ＫＤ－ＰＣ）,它是以电镀锌（２０ｇ／ｍ＾２）的负板为基板,由内外两层涂层构成,内层为ＣｒＯ３－Ｈ３ＰＯ４－ＳｉＯ２系转化膜,外层由Ｃｒ＾３＋,Ｃｒ＾６＋,ＳｉＯ２及丙烯酸树脂涂料组成,该涂层不仅能有效地阻挡Ｈ２Ｏ,Ｏ２,Ｃｌ＾－对镀锌层的腐蚀,而且还能起到良好的缓蚀作用。     

电镀锌系钢板的应用与发展

介绍了电镀锌系钢板的特点和国内外电镀锌系钢板的应用与发展，指出了我国电镀锌系钢板在品种和质量上与国外的差距，对今后我国电镀锌系钢板的发展提出了具体措施。     

改造宝钢电镀锌机组（EGL）的设想

最近十年来,在日本和美国等一些钢铁工业发达的国家,相继投产了一批带钢电镀锌机组。这些生产线的共同特点是:工艺先进、产品多样化、运行速度快和生产能力大。此外,这些生产线几乎都将能够生产锌合金镀层产品作为主要目标,以满足汽车制造业的苛求。本文对国外的电镀锌技术的进步作了简要介绍;将宝钢电镀锌机组与国外最新机组进行对比,找出了主要差距;最后从满足今后我国汽车工业发展的需要着眼,提出了改造宝钢电镀锌机组的初步设想。     

微量元素对高速电镀锌-镍合金的影响

研究了微量元素Cu、Fe、Cr对高速电镀zn-Ni合金的影响并探讨了其作用机理。Cu²⁺在Zn-Ni镀液中容易析出,但它是一种有害元素;Fe²⁺、Cr³⁺则难于析出,镀层中含适量的Fe、Cr可提高Zn-Ni镀层耐蚀性。同时还探讨了微量元素电沉积机理,提出了微量元素从Zn-Ni镀液中电沉积进入镀层的定量判定方法。     

日本神户制钢电镀锌产品无铬钝化技术

日本神户制钢积极进行取代表面处理钢板生产中通常采用6价铬盐进行钝化处理工艺的开发,电镀锌厂彻底废除了铬酸盐钝化处理工艺,完全实现了无铬钝化生产。     

电镀锌机组铅系合金阳极电化学行为的研究

为了防止铅系合金阳极引发电镀锌钢板黑变,对不同成分及不同制造方法得到的阳极进行了电化学性能研究。发现在组成上Pb-In-Ag、Pb-Ag阳极性能良好,Pb-Sn阳极性能较差;在制备方法上真空扩散焊的阳极性能要比铸造阳极性能好。     

生命周期评价在宝钢不锈钢领域的应用初探

近年来,生命周期评价的方法广泛应用于钢铁产品的绿色制造和节能减排等领域.在碳钢LCA研究的基础上,参照国内外相关标准,结合宝钢不锈钢生产流程的具体情况,对宝钢不锈钢产品生命周期评价的研究方法进行思考,对生命周期评价在不锈钢产品领域的应用进行了初步探索.通过对宝钢不锈钢产品生命周期评价的目标与范围、生命周期清单、生命周期影响评价及解释等方面进行研究,探讨不锈钢产品生命周期评价的思路与方法,从而为不锈钢产品的生命周期评价研究积累经验.     

多用途的电镀锌

１９９４年阿根廷ＳＩＤＥＲＡＲ公司投产一条电镀锌生产线，并生产出最优质的涂层带钢，以投放汽车和家用器具市场。     

莱钢齿轮钢生命周期及产品策略分析

介绍了莱钢20CrM nTi齿轮钢近几年生产发展、市场占有率及利润变化的情况,并运用生命周期理论判定该产品已处于生命周期成熟期。从提高现有产品质量、细分产品市场、完善营销管理体系、加强联系合作、采取直销方式等方面,提出稳固现有产品市场、延长该产品成熟期的相关措施;从积极开发性能更优越的新型齿轮钢,并慎重选择分销商、调整营销渠道、尽快树立新产品品牌形象等方面,提出开发新产品和拓展市场的相关策略。     

包钢U76CrRE钢轨生命周期评价

通过对包钢生产的U76CrRE钢轨进行生命周期评价(LCA)研究,计算得到该产品的LCA结果,分析了该产品环境影响因素在各阶段的分布情况,进一步分析了各生产工序的能耗情况和外购产品碳排放的构成情况,研究结果为U76CrRE钢轨的生态设计和绿色制造提供了科学的数据支撑。     

宝钢电镀锌无铬耐指纹钢板的特性研究

研究了宝钢电镀锌无铬耐指纹钢板的各项性能,包括耐蚀性、耐指纹性、耐黑变性、涂装性、附着性、导电性、耐溶剂性、表面形貌等,以了解产品特性并提供相关的技术参考,同时将无铬耐指纹钢板特性与原含铬产品作了对比.结果表明:宝钢电镀锌无铬耐指纹钢板各项性能已接近或达到含铬产品的水平,标志着宝钢电镀锌耐指纹钢板生产步入一个新的标志性阶段.     

Energy-Based Prediction of Low Cycle Fatigue Life of High-Strength Structural Steel

 Energy-based models for predicting the low-cycle fatigue life of high-strength structural steels are presented. The models are based on energy dissipation during average of cycles, cycles to crack propagation and total cycles to failure. Plastic strain energy per cycle was determined and found as an important characteristic for initiation and propagation of fatigue cracks for high-strength structural steels. Fatigue strain-life curves were generated using plastic energy dissipation per cycle (loop area) and compared with the Coffin-Manson relation. Low cycle fatigue life was found similar from both methods. The material showed Masing-type behavior. The cyclic hysterisis energy per cycle was calculated from cyclic stress-strain parameters. The fracture surfaces of the fatigue samples were characterized by scanning electron microscope and the fracture mechanisms were discussed.     

镍矿冶过程的生命周期评价研究

依据生命周期评价的技术框架和原则，首次对国内某企业电解镍生产从采矿、选矿、冶炼、运输等过程进行了生命周期评价研究。研究结果表明：生产1t电镍的环境影响负荷为1837．92mPE，资源耗褐系数为116．55mPR。；环境负荷主要来源于酸化，为1828．58mPE，占总量的99．49％；冶炼过程是最为重要的环境影响阶段，占99．56％。     

Corrosion Protection of Electro-Galvanized Steel by Green Conversion Coatings

A A cerium-based chemical conversion process was studied. First, zinc coating obtained from a free-cyanide alkaline bath, with derivative of imidazol with new brightener, was investigated, zinc-plated steel specimens were treated with a solution of 50 mmol· L^-1 Ce（NO3 ）3 The corrosion behavior of bare and treated mild galvanized steel was evaluated during exposure to 0.5 mol · L^-1 NaCl for different immersion time, using Tafel polarization curves and electrochemical impedance spectroscopy （EIS） measurements. The surface morphology of the coating was studied using scanning electron microscopy （SEM）. The composition and chemical percent of the coating were examined by X-ray dispersion energy （EDAX）. The results of these measurements showed that the newly developed cerium-based conversion coating process was a promising candidate for replacing the conventional chromate treatments used at present for galvanized steel.     

Life Cycle Assessment of Internal Recycling Options of Steel Slag in Chinese Iron and Steel Industry

 The internal recycling process of BOF slag which is one of the huge solid wastes from iron and steel industry was emphasized. Based on the four scenarios of different internal recycling strategies for BOF slag, life cycle assessment (LCA) as a valuable tool for industrial solid waste management was applied to analyze the contribution to reducing environmental impacts and resources burdens for each scenario. The global warming potential (GWP) results of the four scenarios show that the scenario which performs best in carbon reduction cuts off 14.2% of GWP impacts of the worst scenario. The results of this study show that the optimized internal recycling process of BOF slag can improve the environmental performance of crude steel. It is important to assess and choose an appropriate strategy to recycle BOF slag from LCA perspective to reduce the environmental impacts and resource burdens as much as possible.     

不锈钢薄板的焊接技术探讨

本文主要分析了不锈钢薄板的焊接方法及其研究现状,分析认为,钨极氩弧焊即非熔化极氩弧焊最适合焊接较薄的不锈钢钢板。因为TIG焊焊接时热量集中,热影响区小,变形小。     

论企业生命周期与管理者的概念技能

随着科学技术的进步和市场竞争的加剧，企业的生命周期呈现出日趋缩短和形态多样的新特点。概念技能作为影响企业生命周期长短的一个重要的内在因素，应该受到企业高层管理者的高度重视。着重探讨了企业生命周期与管理者概念技能的关系，并提出了提高概念技能的途径。     

彩涂板生产工艺

简要介绍了彩涂板的产品、应用和其生产工艺流程,并着重介绍了彩涂板的主要生产工艺和一些新技术.