铝基合金连续铸造的研究现状及思考

对铝基合金连续铸造的工艺流程、设备、主要工艺参数等进行了论述,分析了铝合金生产过程中易产生裂纹、氧化物夹杂等缺陷的原因,通过对连铸产品组织与性能的观察与分析,对以后铝合金的连铸生产与研究提出了建议。     

新型发热保温板的研究与开发

对一种新型发热保温板的成分、结构设计与工艺特点进行了阐述,对发热、保温、补缩原理进行了分析,同时也对使用情况与经济性进行了介绍.     

铝基合金连续铸造的研究现状及思考

对铝基合金连续铸造的工艺流程、设备、主要工艺参数等进行了论述,分析了铝合金生产过程中易产生裂纹、氧化物夹杂等缺陷的原因,通过对连铸产品组织与性能的观察与分析,对以后铝合金的连铸生产与研究提出了建议。     

基于机器视觉的压铸模缺陷检测概述

首先介绍了压铸模较为常见的缺陷，即凹陷、型芯塑性变形、磨损、断裂、热疲劳裂纹、粘模和溶蚀缺陷等，其次对机器视觉技术在模具缺陷检测与应用方面进行了介绍，并从定义、结构、用途等方面对机器视觉技术中用于缺陷检测的常用基本算法进行了阐述，最后对基于机器视觉的压铸模缺陷检测与应用研究前景进行了总结与展望。     

光纤激光器激光-TIG复合焊接工艺

对光纤激光器激光与TIG复合焊接工艺进行了研究,并通过一套光纤激光器对激光与TIG复合焊接系统进行了相关试验,考察了光纤激光器激光与TIG复合条件下焊缝外观、熔深、对间隙的适应性等。结果表明,复合条件下焊缝外观、熔深、对间隙的适应性等相对激光焊接都有所提升。     

镁合金塑性变形力学行为与微观组织研究进展

介绍了镁合金在单轴压缩、单轴拉伸、轧制和挤压条件下塑性变形的力学行为及微观组织结构演变规律。简述了镁合金中二次拉伸孪生现象以及各种变形条件下孪生与孪生变体类型的选择规律。基于对镁合金位错滑移、机械孪生及动态回复与再结晶行为的认识,对镁合金力学行为的各向异性、轧制与挤压成型能力的影响规律进行了探讨,强调了初始织构对变形机制、动态再结晶及成型能力的重要影响。最后讨论了析出强化镁合金塑性变形与强韧化机理。     

金属薄板兰姆波检验技术

从兰姆波检验参考曲线的绘制与参考、对比试块设计与制造、探头的制作、反射回波与质点振动方向关系等方面,对金属薄板兰姆波检验进行了探索,得出了一些新的试验结果和认识.     

提高6063铝合金强度途径的探讨

研究了稀土、超量硅、 Al-Ti-B、稀土添加剂以及风淬与水淬对6063铝合金强度的影响, 并从理论上阐明了材料的内部结构变化. 研究表明, 稀土及Al-Ti-B的含量和稀土添加剂的加入以及热处理方式对其强度均有影响. 对实验结果进行了分析与讨论, 并在此基础上找到了提高其强度的方法与途径.     

邯钢新冷轧乳化液系统的优化

针对邯郸钢铁集团有限责任公司冷轧厂的乳化液系统存在压力不稳、供油与回油不均衡、气动调节阀阀芯易卡死、喷射压力及流量设定不合理等问题,对乳化液系统的设备进行了合理化改造,同时对乳化液流量与带钢速度、喷嘴压力与流量、乳化液喷射量与辊身凸度等模型曲线进行了优化,取得了良好的效果.     

低温固化银浆导电性能的研究

对不同条件下制备的片状银粉与不同种类树脂体制备的银浆导电性能进行比较,讨论了表面分散剂、表面处理、球磨时间、树脂种类、固化温度等对低温固化银浆电性能的影响,对影响导电性能的因素与导电机理进行了探讨。     

Stainless and acid-resisting steels and alloys

Conclusions Highly alloyed steels and alloys are produced in conformity with GOST or technical specifications in thick and thin sheets, beams and channels, bars, hot-rolled and cold-rolled pipe, and rod. Castings are produced in the specialized plant of the Ministry of Chemical and Petroleum Machine Building.The technology of welding stainless steels and alloys is given in [15] and [16].TsNIIChERMET. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 43–50, October, 1967.     

模具渗硼工艺及其发展应用

渗硼是提高模具使用寿命的重要途径，是在金属表面形成高硬度的金属硼化层，显著提高其耐磨性，且具有良好的耐热性和耐蚀性。近年来，随着渗硼工艺逐步改进和完善，已发展了复合渗、多元共渗及低温渗硼工艺，取得了良好的经济效果。     

Nanochemistry and supramolecular chemistry of actinides and lanthanides: Problems and prospects

The possibility of using unique properties of lanthanides in the nanotechnology is demonstrated. The origination of linear and nonlinear optical properties of lanthanide compounds with phthalocyanines, porphyrins, naphthalocyanines, and their analogs in solutions and condensed state and the prospects of obtaining novel materials on their basis are discussed. Based on the electronic structure and properties of lanthanides and their compounds, namely, optical and magnetic characteristics, electronic and ionic conductivity, and fluctuating valence, molecular engines are classified. High-speed storage engines or memory storage engines; photoconversion molecular engines based on Ln(II) and Ln(III); electrochemical molecular engines involving silicate and phosphate glasses; molecular engines whose operation is based on insulatorsemiconductor, semiconductor-metal, and metal-superconductor types of conductivity phase transitions; solid electrolyte molecular engines; and miniaturized molecular engines for medical analysis are distinguished. It is shown that thermodynamically stable nanoparticles of Ln _x M _y composition can be formed by d elements of the second halves of the series, i.e., those arranged after M = Mn, Tc, and Re. Prospects of using lanthanide superconductors in nanotechnology are considered.     

ADI和CADI在冶金矿山等行业中的应用及前景

综述了ADI和CADI的耐磨性能及耐磨原理;详细介绍了ADI磨球、衬板和锤头的应用情况,认为ADI件无论在综合力学性能,还是在耐磨性、使用寿命、成本方面都优于高铬铸铁件;同时还介绍了CADI在农业机械领域的应用效果.根据我国钢铁行业的发展趋势,指出ADI和CADI耐磨件市场前景广阔.     

金刚石、CBN有序排列及择优取向工具的研发及应用

有序排列／择优取向超硬材料工具的技术创新，将广泛适用于电镀、树脂、陶瓷、金属结合剂制品工具中，使用超硬材料颗粒在结合剂中均匀排列并择优定向，以最大潜能的发挥超硬材料各个方面固有的特性。并针对不同的加工对象，有选择性的使用超硬材料各自不同的特性，从而使超硬材料工具将以经济、高质与高效的优势替代传统的超硬材料工具并将进入新兴的加工领域，为生产企业带来新的发展机遇。本文将对有序排列与择优取向技术的研究现状及其在不同的金刚石工具中的应用做一阐述。     

Hardness and elastic modulus of amorphous and nanocrystalline SiC and Si films

Hydrogen-free amorphous and nanocrystalline films were prepared by magnetron sputtering of the SiC or Si targets. Mechanical properties (hardness, elastic modulus, intrinsic stress) and film structures were investigated in dependence on the substrate bias and temperature. It was found that both hardness and elastic modulus of all amorphous a-SiC films prepared at different substrate temperatures and biases are always lower than those for bulk α-SiC single crystal while the hardness of partially crystalline SiC films is higher and the elastic modulus lower than those for α-SiC one. In contrast, both hardness and elastic modulus of all amorphous Si films are always lower than those for nanocrystalline Si films which show approximately the same value as the Si single crystal.