铝合金

In order to reduce the natural aging time of 2024 aluminum alloy, a new artificial aging technique of 2024 which aging time is shorter than that of the natural aging technique, based on the hardness and conductivity test and aging principle analysis, was proposed in this paper.

高立柱 ，刘艳红，田秀云为缩短2024铝合金的自然时效时间，本文通过对2024铝合金导电率和硬度实验研究以及对它的时效机理的分析，初步确定了2024铝合金的一种新的时效时间较短的人工时效制度。

With the addition of sodium barbial, the inhibitive efficiency increases.'Ihe inhibition of sodium barbital results ￡tunfarming a thin conversion film on the surface of aluminum alloy, which increase the resistance of corrosion.

结果表明，巴比妥钠对铝合金具有较好的缓蚀作用并且能提高铝合金在NaCl溶液中抗点蚀的能力，这种能力主要是通过在铝合金的表面形成不溶怀盐转化膜来实现的。

With the addition of sodium barbial, the inhibitive efficiency increases. The inhibi tion of sodium barbital results from forming a thin conversion film on the surfa ce of aluminum alloy, which increase the resistance of corrosion.

结果表明，巴比妥钠对铝合金具有较好的缓蚀作用，并且能提高铝合金在 NaCl溶液中抗点蚀的能力，这种作用主要是通过在铝合金的表面形成不溶性盐转化膜来实现的。

Alloy frame, Double Wall Alloy tire circle, Dishing brake, forging suspension front fork, Alloy adjustable handlebar stem with gears, alloy handle, alloy retroflex saddle tube, alloy adjustable rack, middle parking rack, Alum-plating electric mudgurads, alloy cranks, 1.75 glisten tires. SHIMANO 6-speed chains linker, SHIMANO gearlever, spring saddle,24V.9AH/13AH battery, intelligent meterplate, LED front and rear lights, 3-grade Electric Assist Driving System（1st,Bike;2nd,1:1 Standard Riding Pull-assist; 3rd,Strong Pull-Assist） 6-grade Manual speed changes,1.8A NiMH Battery chargerAlloy Power-cut Brake handle

描述： 6061#铝合金高强度车架，铝双层车圈、前后碟刹、铝前花鼓、锻造铝合金减震前叉、有牙铝合金把立、铝合金把横、铝合金翻转鞍管、铝合金可调节衣架、中支撑、铝合金曲柄，镀铝导电型前后泥板、1.75反光轮胎、禧玛诺外6速拨链器、禧玛诺变速杆、弹簧减震坐垫、9AH/13AH镍氢电池、智能仪表盘、LED照明前灯、后LED灯、三档电动助力驱动系统（一挡、自行车；二挡、1：1标准骑行助力；三挡、强助力）、6档机械变速、1.8A镍氢电池充电器、全铝断电刹车握把。

Based on solidification theory and analysis of process of Aluminum alloy Direct Chill casting, the control system of DC casting for big size billet has been designed. For improving the quality of billet-optimized control strategy of cooling water must be determined to eliminate the instability of the traditional feedforward control, PID control and cascade control have been introduced.

通过对铝合金DC铸造工艺过程的分析，建立了铝合金DC铸造的控制系统；在分析DC铸造铸锭结晶凝固原理的基础上，完成了冷却水量自动控制的系统设计，并进行了控制策略的选择；基于对铝合金直接水冷铸造，DC凝固原理和工艺过程的分析，本文提出了大尺寸铝合金圆锭铸造的控制系统设计方案。

Qi staffing, technology, and enterprise development of this establishment of the independent processing workshops Plastic windows and doors, high-grade aluminum alloy doors and windows broken insulation production and processing workshop, insulating glass processing plant and distribution conch-based windows and doors profiles Hardware stores sales, processing and assembling an annual output capacity of more than 50,000 square meters, the enterprise has the production of PVC windows and doors two sets of large-scale equipment, precision double-headed Saw aluminum, aluminum alloy Aluminum Group Kok Airport, aluminum alloy punch, vertical precision milling machine, such as aluminum alloy doors and windows, aluminum alloy hollow-Home-shift door, folding door processing equipment, has a vertical plate pressure automatic insulating glass production line and the straight-line glass milling machines and testing instruments, such as windows and doors equipment, for the manufacture of reliable products provided a guarantee for quality.

人员配备齐，技术力量强，企业发展之今设立了独立的塑钢门窗加工车间，高档断桥隔热铝合金门窗生产加工车间，中空玻璃加工车间和以海螺型材经销为主的门窗五金件销售门店，加工组装年产能力达五万平米以上，企业拥有塑钢门窗生产大型设备二套，精密双头铝锯机、铝合金平开窗组角机、铝合金冲床、立式精密铣床等铝合金门窗、铝合金中空家装移门、折叠门加工设备、拥有立式自动板压中空玻璃生产线一条以及直线玻璃磨边机和门窗检测仪器等设备，为制造可靠的产品质量提供了保证。

The relationships between welding pool width, wire extension and welding parameters including welding current duty ratio, base current, peak current, welding speed and wire-feeding speed were studied. Through large numbers of welding experiments, aluminum alloy pulsed MIG welding dynamic process were identified by the curve fitting method, and the mathematical models between welding current duty ratio, base current, welding speed, wire-feeding speed and wire extension were obtained, succeeding the model between the above parameters and weld pool width.

介绍了铝合金MIG焊焊接电流占空比、基值电流、峰值电流、焊接速度、送丝速度对熔宽的影响规律，并在其基础上，通过平板堆焊试验研究了这些参数对焊接干伸长的影响规律；在铝合金机器人脉冲MIG焊平板堆焊过程各焊接参数与正面熔宽之间的传递函数的基础上，采用铝合金平板堆焊阶跃试验，利用曲线拟合法辨识了铝合金机器人脉冲MIG焊动态过程传递函数，建立了焊接电流占空比、基值电流、焊接速度、送丝速度与焊接干伸长之间的对象数学模型。

Optimal design of copper-aluminum compound radiator fin based on explosive welding technology

铜-铝合金铜铝铜铜铝结构铜、铝导体铜、铝合金铜铝期货镍-铜-铝铜铝母线&铜铝焊条，铜铝焊丝&铜铝化合物高铜铝合金铜铝合金化铜铝复合板

This project includes the followings: high precision aluminum belt, coating aluminum foil, large shape aluminum, pipe of aluminum and its alloy, aluminum gear, aluminum heat radiator, compound aluminum pipes, colored coating aluminum sheet, aluminum building wall, high quality electrolysis aluminum foil, special shape aluminum, canned aluminum materials, PS plank, aluminum foil for air conditioner, aviation aluminum sheet, cold treated aluminum sheet, aluminum decoration sheet, plastic aluminum pipe, erosion materials, food package materials and so on.

三、项目简介：铝加工发展项目包括：高精度铝板带；子铝箔；亲水铝箔；大型铝型材；涂层铝材；铝及铝合金铸轧带材铝合金管；铝合金轮；铝散热器；铝塑复合管；彩色涂层铝板；铝幕墙板；高性能电解铝容箔；铝合金特种型材；易拉罐料； PS 板；空调箔；航空用铝板；冷轧铝板、带、箔；建筑装饰用铝板；铝塑管；铝建筑，耐腐蚀材料和食品包装材料。

Alloy frame, Double Wall Alloy tire circle, Dishing brake, forging suspension front fork, Alloy adjustable handlebar stem with gears, alloy handle, alloy retroflex saddle tube, alloy adjustable rack, middle parking rack, Alum-plating electric mudgurads, alloy cranks, 1.75 glisten tires. SHIMANO 6-speed chains linker, SHIMANO gearlever, spring saddle,24V.9AH/13AH battery, intelligent meterplate, LED front and rear lights, 3-grade Electric Assist Driving System（1st,Bike;2nd,1:1 Standard Riding Pull-assist; 3rd,Strong Pull-Assist） 6-grade Manual speed changes,1.8A NiMH Battery chargerAlloy Power-cut Brake handle

描述： 6061#铝合金高强度车架，铝双层车圈、前碟刹、铝前花鼓、锻造铝合金减震前叉、有牙铝合金把立、铝合金把横、铝合金翻转鞍管、铝合金可调节衣架、中支撑、铝合金曲柄，镀铝导电型前后泥板、1.75反光轮胎、禧玛诺外6速拨链器、禧玛诺变速杆、弹簧减震坐垫、9AH/13AH镍氢电池、智能仪表盘、 LED照明前灯、后LED灯、三档电动助力驱动系统（一挡、自行车；二挡、1：1标准骑行助力；三挡、强助力）、6档机械变速、1.8A镍氢电池充电器、全铝断电刹车握把。

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。