WDB620焊接性试验研究

本文从理论上对WDB620钢的焊接性进行了简要分析，并通过对该钢进行焊接抗裂性试验及不同线能量大小的焊接接头性能试验，说明WDB620钢属低焊接裂纹敏感性钢，具有良好的焊接性。     

ZF钢锻材生产工艺与性能检测的初步探讨

介绍了ZF1(17Cr2Ni2HZ)：ZF7(18CrMnBH)钢的锻材生产工艺及生产情况，对该钢的性能进行了测试分析。加深了对该钢的了解，为以后生产ZF系列钢打好了基础。     

工业链条（GL）钢性能的研究

介绍工业链条用钢性能评定的试验过程，包括试验材料，试验方法、试验钢显微组织分析及综合性能评定等，并将其与４０Ｍｎ钢进行了分析比较，最后对该钢种进行了性能评定。     

转炉——连铸过程温度的标定与控制

对湘潭钢铁公司的转炉－连铸过程的钢液温度进行了跟踪测量标定，对影响该过程钢液温度的因素进行了调查分析，据此得出了合理的出钢温度及实现低温快拉应采取的措施。     

模式识别要因分析和优化决策方法辅助分析船板钢冲击韧性

本文提出了模式识别要因分析和优化决策方法，并应用该方法对提高船板钢冲击韧性的途径进行了分析和研究。得出了船板钢冲击韧性的关键影响因素和工艺优化途径。通过对高碳含量厚板钢的板卷试验和显微组织分析，验证了要因分析和优化决策得出的结论，即在现有样本集代表的船板钢成本条件下，卷取温度的控制对冲击韧性的改善有很大的作用。研究表明，该技术用于改造钢材质量有实际意义。     

唐钢ER70S-6焊丝钢的生产工艺研究及质量分析

介绍了唐钢ER70S-6焊丝钢的特点，对盘条质量进行了分析。对该钢化学成分、冶炼和轧制工艺进行了优化研究，使其综合性能明显改善。     

粒贝氏体钢12Mn2VBS的组织与性能初探

以粒贝氏体钢12Mn2VBS为研究对象，对其在不同工艺下的组织和性能进行了分析，结果表明，进行中高温回火后，该钢具有良好的综合机械性能。     

焊接用钢ER70S-G性能对比研究

主要对焊接用钢盘条ER70S－G钢的性能进行了对比研究，分析了影响该钢种拉拔性能的关键因素。     

连铸结晶器内粘结漏钢的形成机理及对策

连铸结晶器内钢液弯月面在连铸生产中起着至关重要的作用，本文结合钢液弯月面的行为对粘结漏钢的形成进行了详细地分析，介绍了一种新的粘结漏钢形成机理，认为钢液弯月面的破损是粘结漏钢发生的直接起因，此外，还在该机理的基础上，探讨了防止粘结漏钢的对策。     

转炉─连铸过程温度的标定与控制

对湘潭钢铁公司的转炉-连铸过程的钢液温度进行了跟踪测量标定，对影响该过程钢液温度的因素进行了调查分析．据此得出了合理的出钢温度及实现低温快拉应采取的措施。     

粉煤灰混凝土的技术性能及经济分析

表述了粉煤灰的组成和性能,以及掺粉煤灰对混凝土的和易性、强度、绝热温升、干缩变形、耐久性及钢筋锈蚀性能等的影响,并分析了粉煤灰混凝土的经济性。     

厚规格压力容器板探伤不合格原因分析与改进措施

通过运用金相及扫描电镜等手段,对厚规格低合金容器板探伤不合格钢板的内在组织及探伤不合格的原因进行了分析,分析表明,夹杂物导致的微裂纹是钢板探伤不合格的主要原因。提出了降低钢水过热度,采用动态轻压下技术,铸坯、钢板下线堆垛缓冷48h等工艺措施,可有效提高钢板探伤合格率。     

34Mn5钢管外折叠缺陷的原因分析

针对34Mn5管坯轧制成钢管后表面上出现的外折叠缺陷,用理化检测手段对钢管化学成分、缺陷形态、金相组织进行分析,对铸坯进行热酸浸蚀试验。分析结果表明圆管坯表面渣沟缺陷在热轧过程中各种复杂应力的作用下扩展,最终形成了34Mn5钢管表面外折叠缺陷。通过对结晶器保护渣理化指标进行调整,基本消除了铸坯表面渣沟缺陷,降低了钢管外折叠缺陷率。     

昆钢第三炼钢厂钢包滑动水口滑板多炉连用

对昆钢第三炼钢厂70t钢包滑动水口滑板的多炉连用进行了分析和总结。分析了影响滑板连用的因素，总结提高滑板连滑率的措施和经验，为今后进一步提高滑板连滑率提供指导。     

唐钢1810 UTSP线单块轧制1.0mm厚带钢的开发

介绍了半无头轧制1.0 mm厚带钢存在的问题、单块轧制1.0 mm热轧带钢的生产难点,唐钢1810UTSP生产线为单块轧制1.0 mm厚带钢进行的工艺技术研究,开发了薄规格带钢轧制的成套技术.应用这些轧制技术生产的1.0 mm厚带钢已达到批量生产水平,产品的力学性能、尺寸精度及板形控制能够满足用户标准要求.     

A theoretical and experimental study of continuous-casting tundishes focusing on slag-steel interaction

A model of a tundish has been developed that takes into account the steel, slag, and refractory phases. Predicted temperatures and velocities in the steel and refractory from the model were earlier found to agree well with measured velocities and temperatures. The model was also used to determine the optimal location of flow devices, making the temperature distribution in the steel more even and enhancing the removal of inclusions to the slag. In this study, the focus was on using the model to study the slag/steel interface in the tundish. Predictions showed that slag is dispersed into the steel close to the interface as well as close to the ladle shroud. In order to confirm these predictions, the momentary interfacial solidification sampling (MISS) method was developed. Using this method, a sample of the steel/slag interface could be taken that represented almost an instantaneous picture of the interface. The MISS sampler was used for sampling low-carbon steel in the tundish. Samples were analyzed using ultrasonic testing, optical microscopy, and scanning electron microscopy (SEM). Analysis results confirmed the presence of nonmetallic particles close to the slag/steel interface and close to the ladle shroud, as suggested by the modeling results. The analyses also showed that the slag/steel interface is very irregular, despite the low velocities.     

Cavitation Erosion Studies on Friction Stir Processed Hydroturbine Steel

Cavitation erosion (CE) of various components in hydroturbines is a critical issue. Several attempts have been made in the past to counter CE through various surface modification techniques. In this study, a novel attempt has been made to modify the surface properties of hydroturbine steel with the aid of friction stir processing (FSP). Metallurgical characterization of the processed steel was undertaken with the help of XRD, SEM/EDS, EBSD and optical microscopy. For mechanical characterization micro-hardness and cavitation erosion studies were conducted. EBSD results confirmed the presence of grains in nano range. Processed steel showed gain in hardness of the order of 160?% in comparison to unprocessed steel. XRD results show a significant variation in the type and quantity of various phases in pre- and post processed steel. It was observed that FSPed steel showed a significant improvement in the erosion resistance in contrast to the unprocessed steel.     

转炉有效石棉板厚度的计算

对重钢 5 0t转炉进行了炉壳 (炉身段 )温度场分析 ,当石棉板的厚度为 30mm左右时 ,炉壳表面温度就能控制在炉壳材质的蠕变温度以内。     

RFID+4D CAD for Progress Management of Structural Steel Works in High-Rise Buildings

This research presents a strategy and information system to manage the logistics and progress control of structural steel works under the integrated environment of radio frequency identification and four-dimensional computer-aided design (4D CAD). Considering the characteristics of the manufacturing and erection processes of structural steel works in high-rise building construction from a practical point of view, this research has developed a strategy to support successful application of these two state-of-the-art technologies and has developed an information system to support the logistics and progress management based on this strategy. The results of this research have been validated and verified through real-world applications in two high-rise building construction projects considering realistic constraints. Time study has been conducted to verify the efficiency of the proposed information system. In addition, lessons learned and issues identified through these real-world applications are described and discussed in this paper.     

不同工艺生产带肋钢筋力学性能工序能力对比

对两种不同工艺生产的 2 0MnSi热轧带肋钢筋力学性能工序能力进行对比 ,分析表明 ,六轧厂由于轧制工序条件变化 ,造成力学性能σs、σb 工序能力偏高 ;δ5工序能力偏低 ,出现严重失衡 ,提出从调整钢的化学成分控制范围解决力学性能综合工序能力失衡的途径 .