国内铜板带生产技术与加工装备现状概述

随着经济的快速发展和科技的不断进步,国内对铜板带产品量的需求与质的要求不断提升,铜板带产品也在向多品种、多规格、高精度、高性能、高技术含量、高附加值方向发展。因此,优化的合金配置、先进的工艺流程和高端的加工装备就成为这种发展方向的必然要求和客观需求。文章重点对中色科技所研制开发的铜板带热轧机、铜带坯水平连铸机、铜带粗轧机、铜带精轧机、铜带拉弯矫直机、铜带(酸洗)脱脂清洗机等铜加工设备的技术特点、装机水平及其加工工艺等进行了论述与介绍。     

上海理工大学电功能材料研究所研究成果

大规模集成电路用引线框架材料攻克了Cu-Fe-P系合金的合金化、熔炼工艺、轧制工艺与热处理工艺的结合协调和板型控制等关键技术,实现了Cu-Fe-P铜带和异型带的工业化的生产,产品的质量达到了国外先进同类产品的水平。先后获得河南省科技进步一等奖一项,河南省科技进步二等奖一项,中国有色工业科     

某高精度铜板带工程铜带车间通风与空调设计

铜板带加工在有色金属加工领域占有很重要的位置,本文介绍了某高精度铜板带工程铜带车间各工段的环境品质要求;并针对这些要求阐述了各工段的通风与空调设计思路及实用方案等内容。     

双金属覆合用铜带生产工艺研究

双金属覆合用铜带是制作新型通讯用电缆线的基础材料,即铜包铝、铜包钢电缆线的重要原材料。本文重点介绍了双金属覆合用铜带的铸造及加工生产的关键工艺研究过程,讨论了化学成分及加工工艺对双金属覆合用铜带组织及性能的影响。     

HRB500高强带肋钢筋研发与实践

介绍了安钢HRB500热轧带肋钢筋的生产工艺流程、工艺特点及采用微合金化工艺技术进行HRB500热轧带肋钢筋的研发实践。生产实践表明:根据生产线装备条件,采用VN微合金化技术,其生产的HRB500带肋钢筋均能满足国标技术要求,且性能稳定可靠。     

板型控制中等压力轧制与常规轧制工艺的比较

通过铜带生产过程中常规轧制和等压力轧制工艺的不同特点的分析和实践验证,得出采用等压力轧制工艺有利于辊系控制,有利于生产过程中铜带的板型控制的结论,对改善铜带生产具有实际借鉴作用。     

高精度黄铜接插件铜带生产技术的研究

论述生产高精度H65黄铜接插件铜带在铸造、铣面、轧制、酸洗等关键工序的工艺过程及其特点，并重点分析探讨了如何控制和提高该产品质量的措施和途径．     

热轧带肋钢筋采用MnSi、SiC合金化的生产实践

介绍昆钢采用MnSi、SiC合金化工艺生产热轧带肋钢筋的情况和创造的经济效益。     

HRB400带肋钢筋生产工艺优化

介绍了安钢HRB400带肋钢筋生产工艺流程、工艺特点,通过采用微合金化工艺、轧后控制冷却技术对目前HRB400带肋钢筋生产工艺进行优化,优化后减少了微合金添加量,稳定了产品力学性能,有效地降低了带肋钢筋生产成本。     

微合金化HRB400的研制

介绍了采用FeV50和V75N12微合金化技术研制热轧带肋钢筋HRB400成分设计、冶炼和轧制工艺,产品实物性能;对两种微合金化工艺进行分析.     

铜带边部精整处理装备和技术的开发

目前国内外已有相关专家对变压器绕组的铜带边部精准处理进行了相关研究,但是对精准处理装备和处理技术没有涉及,本文分析了铜带边部精准处理情况,"五位一体"铜带边部处理精整处理装备的工作运行方式,该处理装置实现了对铜带边部缺陷的处理,为变压器绕组的安全稳定运行提供了技术支持。     

高精度变压器铜带的边部处理技术

高精变压器铜带的边部处理技术是铜加工领域的先进技术.本文介绍了滚压法和刮削法边部处理技术的特点,阐述了中铝洛铜自主创新的三位一体滚压技术及其特点,并对国内高精度变压器铜带材边部处理技术的发展提出几点建议.     

我国汽车散热器用铝带的产能与消费

本文对铝热交换器在汽车上的应用及其发展,中国热交换器用铝带的生产和需求作了全面的概述。铝合金复合材料除在汽车散热器上应用外,还广泛应用在火车、工程车、专用车、冷藏车、大型机车、飞机、空气调节装置、油压装置、制氧机、空气分离装置、碳化氢分离装置、天然气液化与蒸发装置等诸多领域。预计2015年我国将需求热传输复合铝板带箔超过15万t。     

铜及铜合金板带材表面清洗技术及装备

铜及合金板带材表面质量直接影响着产品成品率,而带材表面清洗技术和装备是决定带材表面的关键因素,因此成为铜及合金带生产中的关键工序,本文概述了现代铜带清洗技术和装备现状及发展情况。     

深冲紫铜各向异性及织构相关性分析

通过力学性能检测及电子背散射衍射（EBSD）分析,研究了不同加工工艺生产的厚度为0.5 mm的紫铜带的塑性应变比r、平面各向异性系数Δr与材料深冲性能之间的关系,并对纯铜带材的织构进行了分析。结果表明,塑性应变比r值越大,越不易在厚度方向变形,越适合深冲,且需同时满足Δr要小,才能保证每个面上塑性应变比波动幅度较小。织构分析表明,减小成品加工率可以减少形变织构的体积分数,通过加工率与热处理的配合可以控制形变织构和退火织构的配比,合理的配比可以促进深冲紫铜带后杯口四周的制耳相互抵消,各向异性减小,从而保证了紫铜带冲压后边缘的制耳率。      

Development of Single‐Belt Strip Casting Simulator

Near‐net‐shape casting is one of the key technologies to improve process efficiency of steel production. Single‐belt strip casting is recognized as a promising technology for thin strip production because of the advantages like well‐controlled heat transfer rate, flexibility in production rate, compactness of equipment, and so on. In this study a newly designed simulator of the single‐belt strip casting process was developed. The simulator solidifies molten metal on the running solid metal bar with a groove for molten metal deposition pushed by a pneumatic cylinder. Capability of this simulator design was discussed by one‐dimensional numerical heat transfer analysis. It showed that a steel casting bar thicker than 40 mm was capable of casting test of 10 mm thick steel strip even if interfacial thermal resistance existed. Finally, the simulator was applied to the casting test of aluminum strip, and successfully estimated the variation of the interfacial heat flux from the solidifying strip to the casting bar.     

铜带20辊冷轧机工作辊材质选择与磨削工艺探讨

文章介绍了20辊冷轧机的特点,铜带20辊冷轧机工作辊材质的选择与比较,并对工作辊的磨削工艺进行了探讨。     

Ab‐initio Predictions of Interfacial Heat Flows during the High Speed Casting of Liquid Metals in Near Net Shape Casting Operations

When metals are cast into solid shapes, the quality of the solid casting depends on many things, but heat flow management is a critical factor. It is relatively easy to predict heat flows through the liquid metal, and the solid mould, but heat flows through the interconnecting interface have been much more difficult to quantify. In the present work, following a review of our progress up to date on near net shape casting, the approach is to model this interfacial resistance from first principles. By conducting experiments in which liquid aluminum is cast at high speed (～0.5 m/s), onto a copper substrate, fitted with extremely sensitive embedded thermocouples, heat fluxes from the first moments of metal contact, to final freezing of the strip, have been measured. Similarly, by using a 3D profilometer that is able to rapidly characterize and quantify the surface topography of a substrate, to ±1 µm, one can have the necessary data to mathematically model the transfer of heat from the overlaying metal, through the interfacial layer, into the copper substrate. The thermal model briefly described, makes the assumption of point contact between pyramidal peaks of the metal substrate and molten metal, with gas pockets trapped in the “valleys” of the substrate, through which heat must be transferred by conduction. Ab‐initio instantaneous heat fluxes predicted in this way proved to be in good agreement with those measured, provided adjustments were made for expansion of the “air gap”.