铝合金

For solving the key problems concerned in design,analysis and manufacturing technology of aluminum alloy pontoon bridge ,the research on design of main structure of the pontoon bridge made of aluminum alloy is carried out.

针对铝合金舟桥在设计、受力分析、制造工艺诸方面的技术难题，开展了"铝合金用于舟桥承重结构的设计研究"预先研究工作。

With the increase of RE content,α-Al grain was refined gradually; the granularity and content of Al3Fe were decreased.

因此控制和改善富铁相的形貌，提高铝合金的力学性能是回收铝合金应用的关键。

The results show that dynamic softening is easy to occur in these ingots and flow stress becomes steady finally; the material constants of hot deformation are procedural parameters that stress-level coefficient α, strain rate sensibility exponent m and deformation activation energy Q are all increased with strain increasing, while stress exponent n is decreased gradually; the values α and m of the alloy homogenized are the biggest and the value n is the smallest, dynamic softening effect of the alloy is the most obvious, which can deform evenly; influence of strain on the value Q of the alloy homogenized is a little and the average value of Q is only 176.5kJ/mol, so the alloy is easy to deform; the alloy matrix shows the regular recrystallization grains when the strain is 50%; dislocation cell structure re-formed in the grains with increase of strain.

结果表明：经不同处理的Al-1Mn-1Mg合金均易发生动态软化并最终呈现稳态流变特征；热变形材料常数是过程量，随应变量的增加，应力水平参数α、应变速率敏感性指数m和热变形激活能 Q 随之增大，而应力指数 n 则逐渐减小；均匀化退火后，铝合金的α和m值最大而n值最小，动态软化效果最明显且变形均匀，在该状态下，铝合金的 Q 值受变形量影响小，平均仅为176.5kJ/mol，易进行热变形；当应变量为0.7时，基体呈现规则的再结晶晶粒组织，随着应变量的增加，晶内重新形成了位错胞结构。

The tailboom is made from an extruded aluminum tube with reinforcements bonded to the tube where the tailboom support struts attach, and formed aluminum saddles are riveted to the tube at the horizontal tail and ringtail attachment points.

铝合金尾管附有一根支撑杆强化其结构，铝合金托架以铆钉固定在尾管上的水平尾翼及尾翼环的接点上。

It is suitable for semi-finishing machining of soft steel, gray cast iron, Al alloy and Si+Al alloy.

适用于低碳钢、灰口铸铁、铝合金、硅铝合金的半精加工。

Environmental protection , Repetitive to use , self-repair, and reclaimed instead of wood resource; 5. Versatile Connecting , easy conjunction , short time , high efficiency , both men and women , saving manpower ,costs; 6. various shape, stype , circular , rhombus , arc type can be made by the orders of customer. More detail please enter our website :www.gzjszl.cn or www.gzjszl.cn

折叠式铝合金展览架最大的优点是： 1、外观美观、细腻、本产品全部采用高强度铝合金材料，经过阳极处理； 2、承受力强、连接性强、安全系数高、不易变型； 3、运输携带方便、省运输费、搭建费及装潢费； 4、环保性强，不会产生大量的垃圾，一次性投资可重复使用，可自行维修、使用后可回收不会对自然产生污染，代替了世界上的木材资源； 5、多功能组合、组装简易、时间短、效率高、男女皆可、节省大量人工、费用； 6、造型多样化、可根据客户的需要定做S型、菱形、圆形、弧形等。

In December, 2005, construction department subordinate three specialcommittees: The Chinese construction metal structure associationaluminum windows and doors curtain wall committee, China constructsthe decoration association curtain wall project committee, Beijingconstructs the decoration association curtain wall windows and doorscommittee, the organization concerned expert develops %26quot;the fine housesign to the our company to put on the strip type aluminum alloy toconserve energy evenly opens the window%26quot; to carry on the appraisal,draws the following conclusion: After the verification, the fine housesign puts on the strip type aluminum alloy to conserve energy evenlyopens the window system performance outstanding, the quality isreliable, the product technology achieved the international advancedlevel, has the higher promoted value, and jointly carries on therecommendation to the profession.

2005年12月，建设部下属三家专门委员会：中国建筑金属结构协会铝门窗幕墙委员会、中国建筑装饰协会幕墙工程委员会、北京市建筑装饰协会幕墙门窗委员会，组织有关专家对我公司研制的"嘉寓牌穿条式铝合金节能平开窗"进行评审，得出如下结论：经审核，嘉寓牌穿条式铝合金节能平开窗系统性能优异，质量可靠，产品技术达到国际先进水平，具有较高的推广价值，并联合向行业进行推荐。

According to using requirements of 6061 large-scale aluminum alloy profile using in the train freight transportation compartment.

针对列车货运车厢用6061大型铝合金型材的使用要求，从挤压工艺与模具设计等关键技术方面进行研制，并成功地研制出了6061大型铝合金型材，以使其在中国铝加工行业中得到充分应用。

It was found that the mechanical properties of the joints decreased by the alclad and it will be increased dramatically by removing the alclad. The effect of alclad on the bottom surface is larger than on the top surface. The mechanical properties of 2024-T3 joints will fall down because alclad is entrapped into the welded joints by the rotating and stirring tools during the friction stir welding, similar with "inclusion" in fusion welding.

研究结果表明，包铝层的存在明显降低了2024-T3铝合金搅拌摩擦焊接头的力学性能；去掉包铝层后接头的性能显著提高；下表面包铝层对接头性能的影响大于上表面包铝层；当2024-T3铝合金表面带有包铝层进行搅拌摩擦焊接时，在搅拌头的旋转和搅拌作用下，包铝层被卷入焊缝中，形成类似于熔焊的&夹杂&，从而使得接头的力学性能下降。

The results indicate that the heteronuclear bond energies are greater than homonuclear bond energies.

用示差扫描量计、X光衍射以及透射电镜研究了非晶铝合金的晶化行为，结果表明，非晶铝合金的晶化经历了初晶型晶化和剩余非晶的多重型晶化，整个晶化过程可相应地分为第一和第二晶化阶段。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。