2010年8月4日 星期三

rapid solidification 快速凝固www.tool-tool.com

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Bewise Inc. www.tool-tool.com Reference source from the internet.

1.

Rapid Solidification of Cu-10Ag Alloy Droplets by Ultrasonic Arc Spray Atomization;

超音速电弧喷射雾化Cu-10Ag合金熔滴的快速凝固

2.

Carbide and its stability in FGH95 superalloy powders during rapid solidification;

快速凝固FGH95合金粉末中的碳化物及其稳定性

3.

Microstructure evolution of hypereutectic Al-Si alloy during rapid solidification;

过共晶Al-Si合金快速凝固组织演变

1.

Phase composition and interface of rapidly solidified/powder metallurgy AZ91/SiC_p Mg-based composite material;

快速凝固/粉末冶金AZ91/SiC_p镁基复合材料的相组成及界面

2.

Preparation, microstructures and properties of rapidly solidified Mg-based alloys are reviewed in this paper.

简述了快速凝固镁合金的制备方法、组织结构及性能特征,介绍了国内外各合金系快速凝固镁合金的研究现状,并指出了当前研究存在的问题及发展动向。

3.

Heat-resistant aluminum alloy produced by rapidly solidified progress is a kind of promising aluminum al- loy.

阐述了快速凝固耐热铝合金焊接研究现状,分析了快速凝固耐热铝合金的焊接性,讨论了钨极氩弧焊、电容放电焊、电子束焊、激光焊、摩擦焊以及钎焊在快速凝固耐热铝合金材料连接中的应用和存在的问题,指出具有高能量密度、低能量输入的电子束焊、激光焊以及摩擦焊适于快速凝固耐热铝合金的焊接。

1.

3~1) are prepared by means of vacuum arc melting followed by high temperature annealing and quenching or melt spinning method.

0)在常规熔铸、高温退火+淬火及快速凝固不同制备条件下的组织结构和电化学性能。

2.

4 were prepared using conventional cast, rapid solidification (melt spinning) and annealing processes.

4 在常规熔铸、快速凝固、退火处理不同制备条件下的组织结构和电化学性能。



near-rapid solidification

亚快速凝固

1.

The recent development and two methods of near-rapid solidification are introduced.

介绍了实现亚快速凝固的两种方法:激冷法和深过冷法,并概述了亚快速凝固理论的最新研究进展。



rapidly solidified magnesium alloy

快速凝固镁合金

1.

In the end,the development trend of rapidly solidified magnesium alloy is suggested.

综述了快速凝固新型固结成形工艺及快速凝固高性能镁合金的研究进展;重点阐述了新型长周期堆垛有序结构镁合金的力学性能、微观组织、形成机理及强化机制;最后指出了快速凝固镁合金的发展方向。



1.

Application of the fast sulphur determination device of intelligence in Panbei Coal Preparation Plant;

快速智能定硫仪在盘北选煤厂的应用

2.

New technology for fast purifying high turbidity sewage;

高浊度污水快速净化新技术

3.

Comprehensive Mechanized Coal Face Install Experience Discussion fast;

综采面快速安装经验探讨



Quick

快速

1.

Optimization of Quick Maintaining Green Color,Keeping Crispness and Freshness of the Pteridium Aguilinum kuhnvar;

蕨菜快速护绿保脆保鲜工艺优化研究

2.

The quick three dimensional numerical simulation of multistage compressor;

多级压气机快速三维数值模拟



quickly

快速

1.

Study on quickly pickling of stainless steel oxide layer on room temperature;

不锈钢氧化皮常温快速清洗液的研制

2.

In high technology war,engineers must build fortifications quickly and flexibly to improve viability of army.

高技术战争条件下 ,需要快速构筑野战工事以提高部队的生存能力 ,因此必须选用一种能有效吸收冲击能量、轻质高强且具有不燃、无毒、保温等性能的新材料。

3.

In order to find and eliminate the fault point quickly and accurately,all kinds of faults characters must be studied.

为了能快速准确地发现线路故障点,及时消除故障,恢复送电,必须掌握线路的各类故障特点,设备特性,运行环境,并对保护知识,气象特点有所了解,线路跳闸后,应根据保护动作、测距情况、故障相别,结合线路特点初步判断出故障类型,再通过对线路运行环境、设备特性的了解,大致判断出故障位置,才能迅速,准确地找出故障点。



rapid

快速

1.

Study on Techniques of Fast Microbial Retting of Flax——Ⅲ.The change of chemical composition content of flax stems in rapid bio-retting process;

亚麻快速生物脱胶技术研究——Ⅲ.麻茎化学成分在快速生物脱胶过程中的变化

2.

Comment on Rapid Determination of Formaldehyde and TVOC Gases in Indoor Air Pollutants;

室内主要污染气体——甲醛、TVOC的快速检测方法评述

3.

The Study of Rapid Determination of Pesticide Residues Which Endanger Food Safety;

食品中农药残留快速检测方法的研究



high speed

快速

1.

Analysis of high speed & high performance rescue crafts;

高性能快速救助艇船型综述

2.

A high speed image scanning system was designed to meet the requirement of fast scanning large images,which was based on scanning electron microscopy(SEM).

为满足快速扫描大面积图形的需要,设计了基于扫描电镜的高速图形检测系统。

3.

Discussed three typical high speed drawing techniques: the double buffer, the cached bitmap and DirectDraw.

研究在原生(Native)模式下使用MFC开发基于GDI+程序的3种快速图形图像绘制技术:双缓冲、缓存位图及DirectDraw,并给出各种方法的具体实现及绘制速度的比较。



镁铝锌系铸造镁合金
magnesium-aluminium-zinc cast magnesium alloy series
mellUxlnx 一zhuzao melhej一n镁铝锌系铸造镁合金(magnesium一alumini-um一Zine east magnesium alloy series)以铝、锌为主要合金化元素的铸造镁合金,可用于砂型和金属型铸造,也可用于压力铸造,具有良好的流动性和焊接性能,热裂倾向性低,但有较大的显微疏松倾向。 中国牌号ZM一5(7.5%一9.0%Al,0.15%一0.5%Mn,0.2%一0.8%Zn,Mg为余量)合金,ZM一10(9 .0%~1 0.2%AI,0.15%一0.5%Mn,0.2%一0.8%zn,Mg余量)合金。zM一5合金为镁铝锌系铸造镁合金的代表,相当于前苏联牌号的M月5 合金。合金中杂质为铁、铜、镍、硅、钻等,根据需要可适量加些被。 铝是主要合金化元素并含有锌和锰,通过改变铝、锌含量可改变合金的力学性能、铸造性能及抗蚀性能。铝含量的增加能进一步改善合金的铸造性能和提高合金的强度,但使伸长率和抗腐蚀性能降低。加入少量的锌和锰能显著提高合金的抗蚀性能,还可以提高合金的强度。但锌含量增加会使合金的缩松倾向增加。ZM一5合金的铸态组织由固溶体叔Mg)为基体,沿它的晶界以不连续网状分布着y(Mg‘A13)相,以及分布在固溶体叔Mg)中的Mn一Ai化合物小质点所组成。热处理强化常采用两种规范:(1)淬火(T4):加热到370~380℃保温2一4h,再升温至415士5℃保温12一16h,然后在空气中冷却。(2)淬火时效(T6):淬火后再在175士5℃人工时效16h。ZM一5合金的力学性能见表1。 表1 zM一5合金的力学性能详 镁铝锌系铸造镁合金结晶间隔较大,充型能力良好,铸造工艺性能及物理常数见表2。表2 zM一s合金铸造工艺性能及物理常数}牛粉粉{字朴 镁铝锌系铸造镁合金能铸出外形和内腔形状复杂的铸件,加之镁合金在汽油、煤油、润滑油中很稳定,因而多用于航空工业的燃油系统和润滑系统。还可作为在受冲击载荷时能吸收大量能量的零部件及飞机着陆轮的轮毅。

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