检索结果-南通市图书馆

International Journal of Minerals,Metallurgy and Materials 2019年第8期26卷 1013-1019页

作者： Gao-yong Lin Xin Tan Di Feng Jing-li Wang Yu-xia Lei School of Materials Science and Engineering Central South UniversityChangsha 410083China Key Lab of Nonferrous Materials Ministry of EducationCentral South UniversityChangsha 410083China Department of Materials Science and Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China

The effects of conform continuous extrusion and subsequent heat treatment on the mechanical and wear-resistance properties of high-alloying Al–13Si–7.5Cu–1Mg alloy were *** microstructures of alloys before and after conform processing and aging were compared by transmission electron microscopy and scanning electron microscopy,*** results reveal that the primary phases were broken and refined by intense shear deformation during conform *** the conform-prepared Al–13Si–7.5Cu–1Mg alloy was subjected to solid-solution treatment at 494℃for 1.5 h and aging at 180℃for 4 h,its hardness improved from HBS 115.8 to HBS 152.5 and its ultimate tensile strength increased from 112.6 to 486.8 *** wear resistance was also *** factors leading to the enhanced strength,hardness,and wear resistance of the alloy were discussed in detail.

关键词： Al-13Si-7.5Cu-1Mg alloy conform continuous extrusion heat treatment wear resistance

ANALYSIS OF STRESS AND TEMPERATURE IN THE conform FORMING PROCESS--FOUNDATION THEORY

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Journal of Central South University 1996年第2期8卷 50-55页

作者： Peng Yuelin Hu Jian Mo Bin Department of Applied Mathematics and Applied Software Central South University of TechnologyChangsha 410083China

The change of stress and temperature in the conform forming process has been studied. On the basis of the law of momentum, the law of momantum moment and the law of energy conservation, the governmental differential equations of stress and temperature in the conform metal forming process have been derived, whose definite conditions are given by material mechanics, elastic machanics and plastic mechanics. The analytic solution of these equations has been successfully obtained and as a result, the solid foundations and scientific guide for the further development of this prospective metal processing techique have been established.

关键词： conform stress temperature differential equations

PRESSURE DISTRIBUTION ON THE GRIP ZONES IN THE conform PROCESS

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Journal of Central South University 1994年第1期6卷 35-39页

作者： Peng Dashu(Department of Materials Science and Engineering, Central South University ofTechnology, Chanasha, 410083, China) Department of Materials Science and Engineering Central South University of Technology Changsha China

The pressure distribution on the grip zones in the conform process has been analysed by means of the slab method, and from the above results the forces applied to the shoe were derived. It is shown that the pressure along the segment increases powerfully with θ increasing in the primary grip, and increases linearly with θ increasing in the extrusion grip. Thus, it can offer mechanics parameters for the operating techniques and conform machine design.

关键词： pressure distribution conform grip zone

Microstructural Evolution in Cu-Mg Alloy Processed by conform

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International Journal of Nonferrous Metallurgy 2013年第3期2卷 100-105页

作者： Lianpeng Song Yuan Yuan Zhimin Yin School of Materials Science and Engineering Central South University Changsha China School of Materials Science and Engineering Central South University Changsha China China Railway Construction Electrification Bureau Group Kang Yuan New Materials Co. LTD. Jiangyin China

The objective of this study is to investigate the possibility of continuous extrusion forming (conform process) and microstructural evolution the of Cu-Mg alloy. The results indicate that conform process can break as-cast grains and refine the structure, meanwhile. This process can improve the degree of the structure homogeneity. The TEM and EBSD techniques were used to investigate the morphology, grain size and misorientation of the samples at cavity entrance and cavity export. Refined structures after shear deformation include broken grains and subgrains formed by dislocation reconstruction. Due to the relatively high deformation temperature, dynamic recrystallization occurred during deformation. The subgrain rotation nucleation took place, and grain boundary migration resulted in grain growth. However, the coarse grains were refined by anneal twins.

关键词： Cu-Mg Alloy Microstructural Evolution conform Dynamic Recrystallization

conform连续挤压生产线超高压(63MPa)液压系统分析与改进

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矿冶工程 1993年第1期13卷 52-54页

作者：杨文堂黄宪曾中南工业大学

conform连续挤压生产线是从国外引进的一种铝及铝合金型材加工的新型设备。立足国内,我们对该设备进行了消化和改进。本文简要总结了该生产线超高压(63MPa)液压系统的改进经验和技术。

关键词： conform 连续挤压生产线液压系统

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conform连续挤压过程的数值分析

金属成形工艺 1993年第4期11卷 150-153,181页

作者：彭颖红阮雪榆

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conform技术的应用与发展

轻合金加工技术 1991年第4期 1-2+4页

作者：颜宽然广州铜铝材厂

本文就我国Confofm技术的应用和存在的问趣进行了简要评述,对我国发展conform技术提出了粗浅的建议。

关键词： conform 有色金属加工生产线挤压轮大连铁道学院 Si 挤压温度英国大不列颠及北爱尔兰联合王国

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英国conform连续挤压技术近期的发展

轻合金加工技术 1990年第1期18卷 33-39,25页

作者：彭大暑中南工业大学材料系副教授

1988年利用在英国伯明翰大学进修的机会,先后去英国原子能局UKAEA)斯普林菲尔德(Springfields)研究所、Babcock线材设备公司(BWE)、HOLTON机械设备公司、Alform合金公司、Metalbox公司旺蒂奇(Wantage)研究所和阿斯顿大学参观和了解英国C... 详细信息

1988年利用在英国伯明翰大学进修的机会,先后去英国原子能局UKAEA)斯普林菲尔德(Springfields)研究所、Babcock线材设备公司(BWE)、HOLTON机械设备公司、Alform合金公司、Metalbox公司旺蒂奇(Wantage)研究所和阿斯顿大学参观和了解英国conform连续挤压技术的现状和近期的发展。现将有关情况简介如下。

关键词：连续挤压 conform 阿斯顿大学挤压技术伯明翰大学斯普林菲尔德设备公司情况简介金属挤压挤压成形

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conform连续挤压工艺

锻压技术 1985年第3期 49-54页

作者：颜寿葵

conform连续挤压工艺是英国原子能委员会(UKAEA)普雷斯顿Sprinfied实验室金属新成形方法研究组发明和发展的,1972年获得专利权。1971年,该工艺第一次成功地用于实际,首先用来解决核动力发展中出现的问题,现在广泛用于线材、型材和空心... 详细信息

conform连续挤压工艺是英国原子能委员会(UKAEA)普雷斯顿Sprinfied实验室金属新成形方法研究组发明和发展的,1972年获得专利权。1971年,该工艺第一次成功地用于实际,首先用来解决核动力发展中出现的问题,现在广泛用于线材、型材和空心型材等的生产。 conform连续挤压工艺是将连续送进的坯料,籍助带槽旋转挤压轮的摩擦推向模具,产生足能压力和温度,使送进料通过模具形成所需的挤压产品。

关键词：连续挤压工艺棒料线材 conform 挤压机锻压设备挤压件凹模模具旋转轮连续铸造连铸型材挤压轮

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conform法—金属连续挤压成型新工艺

上海金属 1987年第1期 47-54页

作者：吕光荣上海冶金设计研究院

一前言六十年代初,英国原子能管理局斯普林菲尔德原子实验室建立了一个金属成形先进方法研究小组,经过多年开发研究,终于在1971年申请了第一个连续挤压成形新工艺的

关键词：连续挤压机坯料盘条挤压轮 conform