金属层状材料的复合技术及其新进展

1固-固复合 （1）轧制复合法 轧制复合法作为金属层状复合工艺在20世纪30年代就引起了一些研究者的关注，其成本低、产量高、尺寸精度高，能生产较大长度和宽度的制品，工艺及装备较为成熟，易于实现大规模工业化生产。轧制法可复合的金属种类很多，但轧制复合往往需要进行表面处理和退火强化处理等工艺，板形控制困难，轧件易边裂，易形成脆性金属化合物，且道次轧制变形量大，需要大功率的轧机。     

轧制法制备金属层状复合材料的研究与应用

介绍了金属轧制复合的工艺特点、分类,分析了轧制各种复合工艺方法的优缺点以及金属轧制复合材料在各个行业中的应用情况,并对今后的研究进行了展望。     

热轧法生产铜钢复合板

介绍了铜与钢复合前的表面处理,基板、复板和盖板的叠合方法,加热方法,轧制设备,热轧复合工艺与工艺参数。     

应用LINK—ISIS显微分析系统研究不锈钢复合钢板复合区的成分分布

本文介绍用ＬＩＮＫ－ＩＳＩＳ显微分析系统测试分析不锈钢复合钢板复合区的化学成分分布特征，认为复合区成分变化仅限于５０μｍ狭窄区间，采用爆炸复合工艺，界面局部区域出现成分均匀的铸态组织，采用轧制复合工艺，界面有外加高镍夹层，它阻止基，复材料在中热和轧制过程中成分的扩散。     

层状金属复合板的研究和生产现状

介绍了有关层状金属复合板的研究和生产现状。爆炸焊接、轧制、爆炸 轧制复合法是目前3种主要的层状金属复合板的生产方法。其中，爆炸复合法在生产中应用最为广泛，异步轧制是一种具有很大发展潜力的轧制复合工艺，对于生产薄的复合板带材爆炸 轧制复合法具有明显的优势。     

双金属轧制复合技术及其研究的进展

对双金属轧制复合技术中的热轧复合、等辊径等辊速冷轧复合和异步冷轧复合三种主要的工艺方法进行了扼要的介绍，回顾了它们的发展历史及主要的研究成果，提出了未来研究工作的方向。     

爆炸复合钛／铜复合棒的孔型轧制

试验了爆炸复合Ti／Cu复合棒坯孔型轧制制备矩形阳极导电棒的工艺过程。试验通过不同的箱形孔型系统及道次加工率设计，试制同形状精度、尺寸精度与工艺性能均满足技术要求的电极材料。确定的工艺流程满足工业生产的需要。     

Q355D特厚核电模块用同质复合钢板的生产工艺研究

特厚钢板的整体均匀性、Z向性能、探伤和生产工艺等一直是实际生产中的难点，通过设计出一种常用Q355D核电模块用钢的化学成分，利用连铸坯真空复合轧制技术，结合实际工业生产上常用的生产工艺进行试制，研究和分析在不同生产工艺下同质连铸坯真空复合轧制特厚钢板的探伤、低倍、弯曲和综合力学性能。结果表明，利用连铸坯真空复合轧制技术，结合TMCP和调质工艺可以制造出综合性能合格的Q355D特厚核电模块用钢板。     

铝合金钎焊复合板冷轧工艺分析及轧制力计算

文章针对4343/3003/4343铝合金钎焊复合板,介绍了其冷轧复合的工艺方法及冷轧过程中的影响因素。并介绍了本公司与某铝业公司合作开发的Φ850×1500mm铝合金钎焊复合板冷复合机组的轧制力参数计算。     

铜铝复合材料的研究与应用

介绍了铜铝复合材料的研究与应用.轧制复合法、爆炸复合法、挤压拉拔法是生产铜铝复合材料的常用方法.应用较多的铜铝复合材料主要有铜包铝复合线材、铜铝复合接头材料、铜铝复合板带等.     

高熵合金激光选区熔化研究进展

摘要：近年来,高熵合金以其多主元成分、独特的组织和许多优异的性能在各个领域引起了极大关注。这种基于“构型熵”设计的新型合金,有望突破传统合金的性能极限,已经成为材料科学发展新的热点和方向之一。传统的电弧熔炼技术限制了高熵合金复杂结构件的制备及其工业化应用,新兴的增材制造技术已成为当前复杂金属构件制备中最具前景的制造方法之一。综述了高熵合金激光选区熔化技术的研究进展,包括工艺、优化和应用等,并对高熵合金未来的工业化应用提出了展望。     

压延铜箔生产工艺概述

综述了国内外压延铜箔的生产现状,分析了压延铜箔的生产工艺和关键技术,指出厚度控制、表面质量和表面处理是铜箔生产的关键环节,全面、全过程和全员参与的质量管理制度是压延铜箔生产的保证;介绍了电子铜箔的种类、应用领域和工业标准;综合对比了电解铜箔与压延铜箔的性能,与电解铜箔相比,压延铜箔具有更好的延伸性和耐折性,更高的软化温度和强度,更低的表面粗糙度,指出压延铜箔是制造挠性印刷线路板基板的关键材料.     

镍生产中湿法技术的应用和发展

由于具有能耗低、适应性强、污染小、综合利用好的特点,湿法提镍日益发展。本文归纳了已获工业应用的氨性、硫酸和氯化介质中湿法提取镍的各种工艺方法,列举比较了各厂使用的原料、工艺流程、生产规模和回收率;分析了各种方法的工艺特点、技术成就和发展趋势。     

中国钢铁产业发展与展望

钢铁材料在经济社会发展中具有重要的作用和地位,钢铁产业是国民经济重要的基础产业。回顾了中国钢铁产业的发展历程与各时期产业发展特征,论述了关键共性技术和技术进步对钢铁产业发展的推动作用和重要意义。研究指出,面向未来中国钢铁产业必须坚持减量化、绿色化、智能化的可持续发展道路,遵循产业发展的客观规律,严格控制产能规模的盲目扩张和产量增长。钢铁产业的可持续发展要实现钢铁制造的功能拓展,加强产业科学布局和企业重组整合,促进流程结构优化调整,构建钢铁厂物理信息系统,实现高质量转型发展。提出并探讨了到本世纪中叶,钢铁产业的发展方向与路径。     

Thermal Fatigue Testing of Tool Materials for Thixoforging of Steels

Semisolid processing, already a well established manufacturing route for the production of intricate, thin‐walled aluminium and magnesium parts with mechanical properties as good as forged grades, faces a major challenge in the case of steels. The tool materials must withstand complex load profiles and relatively higher forming temperatures for thousands of forming cycles for industrial application to be attractive. Since the forming pressures are much lower than those encountered in conventional forging, the principle die failure mechanism in steel thixoforging is expected to be thermal fatigue. Hence, suitable materials able to withstand the steel thixoforming environment for an economically acceptable life, can be best identified with a thermal fatigue test. Such a test is described in the present work. A novel CrNiCo and a nickel‐base superalloy, reported to exhibit superior thermal fatigue resistance in demanding tooling applications, was tested under thermal fatigue conditions encountered in the thixoforming of steels.     

我国铝挤压材生产与消费

我国已成为全球最大的铝挤压产品生产基地,但与世界铝型材生产强国间的差距还很大,企业生产集中度低,建筑材供大于求,工业材的生产、开发和应用方面的不足,随着中国加工制造业发展,工业用挤压材特别是交通运输方面的需求量将大幅度增加。     

A review on recent developments in binder jetting metal additive manufacturing: materials and process characteristics

ABSTRACT

Binder Jetting Metal Additive Manufacturing (BJ-MAM), known also as metal 3D-printing, is a powder bed-based additive manufacturing technology. It consists of the deposition of liquid binder droplets to selectively join powder particles to enable the creation of near-net shaped parts, which subsequently are consolidated via sintering process. This technology is known for its capability to process a wide range of different materials and for its orientation towards large volume production series. Binder Jetting has recently been drawing the attention of both the research sphere as well as several industrial sectors. The present review study encompasses the various and most remarkable aspects of BJ-MAM part fabrication. The review covers the material selection and characterisation considerations, followed by the manufacturing process features and the parameter effect on different part properties. It concludes with an overview concerning the most recent case studies with regards to diverse metal alloy developments.     

Development of powder material hot forging in the ukraine

Information about the chemical composition, physical, mechanical, and operating properties of structural, tool, electrical, and magnetic materials synthesized by hot forging is analyzed. Numerous materials are used for making articles for rocket technics, machine tool building, agricultural engineering, apparatus, and railway transport. Production processes for synthesizing materials and manufacturing articles with an indication of the optimum parameters for production operations are described. The scientific organizations and industrial enterprises of the Ukraine that specialize in hot forging of powder materials are indicated. Translated from Poroshkovaya Metallurgiya, Nos. 3/4(412), pp. 84–104, March–April, 2000.     

Powder Metallurgy Wear-Resistant Materials Based on Iron. Part 1. Materials Prepared by Sintering and Infiltration

Available information on the composition and methods of production of iron-based powder metallurgy wear-resistant materials is reviewed. It is shown that most developments in this field are based on the principle of obtaining wear-resistant material by the creation of a pseudoalloy with a clearly defined heterogeneous structure, in which the microhardnesses of the base material and a hard phase are substantially different. In addition to traditional methods, including pressing and sintering porous ingots and (in some cases) infiltration with a lower melting alloy, methods based on hot working sintered porous ingots under pressure have recently found wider application.     

粉末冶金多孔材料新型制备与应用技术的探讨

在归纳分析国内外最近几年金属多孔材料新技术发展的基础上，结合钢铁研究总院采用粉末冶金技术在大尺寸、异型金属多孔元件、等静压制备、多孔金属复合管挤压成型、亚微米不对称复合膜、多孔催化材料和充气模铸等金属多孔材料制备与应用领域的一些进展，围绕能源、石化和煤的洁净加工等应用技术，对粉末冶金多孔材料技术当前发展的问题和特点进行了研究和探讨。