铝合金

When the mould is dried and solidified, aluminum solution of about 700 ℃ is poured into the mould according to the process of ZCAST technique,and the syphon casting is successfully made.

针对美国Z Corp公司生产的快速原型ZCAST粉末价格昂贵的问题，采用自配制的质量百分比为4∶6的400目石膏粉ZP102和200目氧化铝粉的混合粉末，以弯管为研究对象，使用快速成型机成功打印出其模具零件，烘干、固化处理后，按照ZCAST技术的工艺流程，浇注700℃左右的铝合金溶液，成功铸造出弯管。

STRUCTURE: Titanium and composites used extensively, with particular emphasis on corrosion resistance; fully articulated three-blade coaxial contrarotatmg rotors have all-composites blades with carbon fibre and glass fibre main spars, pockets (13 per blade) of Kevlar-type material, and filler similar to Nomex; blades have non-symmetrical aerofoil section; each has ground-adjustable tab; each lower blade carries adjustable vibration damper, comprising two dependent weights, on root section, with further vibration dampers in fuselage; tip light on each upper blade; blades fold manually outboard of all control mechanisms, to folded width within track of main landing gear; rotor hub is 50% titaniuin/50% steel; rotor brake standard; all-metal fuselage; composites tailcone; fixed incidence tailplane, elevators, fins and rudders have aluminium alloy structure, composites skins; fins toe inward approximately 25°; fixed leading-edge slat on each fin prevents airflow over fin stalling in crosswinds or at high yaw angles.

结构：钛和复合材料广泛使用，耐腐蚀性能与特别强调，充分阐明三叶片转子同轴contrarotatmg有碳纤维和玻璃纤维的主要棒材全复合材料桨叶，口袋（每刀片13）凯夫拉型材料，类似的Nomex纤维填料；叶片非对称机翼部分，每有地面可调选项卡，每降低叶片振动阻尼器进行调节，包括两部分依赖重根，在机身进一步减振装置；小费每个刀片上轻；刀片倍手动舷外所有控制机制，折叠宽度内的主起落架的轨道；转子中心为50％titaniuin/50％钢；转子制动标准；全金属机身，复合材料tailcone，固定发生机尾，电梯，蛙鞋和方向舵的铝合金结构，复合材料的皮肤；鳍鳍在每个脚趾向内约25 °；固定领先的板式翅片防止了侧风或气流停滞在高偏航角度。

The relationship of modification level and △TEG(the eutectic temperature difference between modified and unmodified alloy) was established.

利用自主开发的铝合金热分析系统，研究了Sr加入量、变质后保温时间对ZL104合金冷却曲线的影响，建立了变质等级与变质前后共晶温度的降低值△TEG之间的对应关系。

With high tensile strength and resistance to corrosion.

一种铜铝合金，具有很高的抗张强度和防腐蚀性。

In this model,the thermal physical properties,the latent heat of phase change and thermoelectric effect are considered and the reasonable boundary conditions are determined.

通过ANSYS软件自带的APDL参数化工具首次实现了球面电极条件下铝合金点焊过程的力、热、电耦合分析。

The thermoelectric effect is considered which illustrates the asymmetry wear of electrodes in aluminum alloy direct current RSW.

数值模拟中考虑了珀尔帖热电效应的影响，从数量上准确地解释了铝合金直流电阻点焊中电极的不对称烧损问题。

The reasonable use of thermoelectric effect can ameliorate nugget offset in dissimilar thickness of aluminum alloy sheets direct current RSW.

计算结果显示，在铝合金不等厚板直流点焊中，合理利用珀尔帖效应可改善熔核偏移。

At the foundation of this, laser- TIG hybrid welding method was adopted to realize the joint with higher strength.

在此基础上，利用激光—TIG复合热源技术的进行了镁合金和铝合金更高强度的连接。

Active corrosion areas on the sample surface have been found tinder the fluorescence spots by optical microscope.

结果表明，所选的3种光敏材料均能有效地监测到铝合金基体的腐蚀位置及腐蚀发展过程。

Oscillopolarographic titration was applied to the determination of copper in aluminum alloys.

研究了铝合金中铜含量的示波滴定法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。