共查询到20条相似文献,搜索用时 62 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
1.5MW风力发电设备用轮毂铸造工艺优化设计 总被引:2,自引:2,他引:0
铸造凝固模拟软件作为一种有效的铸造工艺设计和优化工具,在铸造行业中得到了广泛的应用.采用Pro/E维造型软件造型,应用铸造CAE软件完成了对1.5MW风力轮毂铸造过程的计算机数值模拟,基于模拟结果,优化了铸造工艺,指导铸件的实际生产. 相似文献
9.
基于铸件均衡凝固理论,拟定锌锭模铸件的浇注方案及浇注系统的设计计算;然后利用Pro/E和Procast软件,模拟锌锭模铸件的浇注工艺过程.对比结果表明,两者基本吻合.通过模拟可以预知铸件可能产生的铸造缺陷,优化铸造工艺. 相似文献
10.
大型导向叶片铸钢件的数值模拟与工艺优化 总被引:1,自引:0,他引:1
利用三维绘图软件Pro/E对大型导向叶片铸钢件做实体造型,应用数值模拟软件View Cast对铸件完成铸造过程温度场的数值模拟,预测铸件产生缩松、缩孔的部位和形成原因.根据模拟结果初步设计了导向叶片的补缩系统工艺方案,对设计的工艺方案进一步模拟优化,最终获得了合理的补缩系统工艺方案. 相似文献
11.
12.
13.
14.
A. A. Babakov 《Metal Science and Heat Treatment》1967,9(10):764-770
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. 相似文献
15.
模具渗硼工艺及其发展应用 总被引:4,自引:0,他引:4
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。 相似文献
16.
17.
《稀有金属材料与工程》2006,23(4):23-26
结合近年来现场试验与施工实践,分析研究了中小型镍材(工业纯镍)设备与管道的特点、性能、焊接缺陷与产生原因,以及防止与消除其缺陷、优化制造施焊质量的工艺措施,并总结了若干条注意事项。 相似文献
18.
19.
20.
A. Yu. Tsivadze G. V. Ionova V. K. Mikhalko 《Protection of Metals and Physical Chemistry of Surfaces》2010,46(2):149-169
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. 相似文献