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整体式铝合金轮毂的合金处理及其铸造 总被引:1,自引:0,他引:1
Al-Si系铸造铝合金在铝合金轮毂原铸造中得到了广泛应用。合金的成分控制及其晶粒细化、变质处理等工艺对合金性能影响在。从合金处理,铸造方法等方面对其进行了分析和研究,以期为铝合金轮毂的制造找出合理的途径。 相似文献
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为了实现铝合金轮毂生产的智能化控制,对铝合金轮毂低压铸造成型原理及工艺进行了分析。运用PLC设计了铝合金轮毂低压铸造智能控制系统,对铸造过程的温度、气压压力等参数进行控制并实时调整,从而实现了对铝合金轮毂低压铸造连续生产的智能控制。 相似文献
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在铝合金轮毂结构工艺性分析的基础上,针对直接冲头挤压铸造的铝合金轮毂易出现缩孔和缩松等缺陷的问题,对挤压铸造工艺过程进行了试验研究。结果表明,采用浮动阴模挤压铸造工艺制造可避免铝合金轮毂缩孔和缩松等缺陷。 相似文献
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在轻量化和节能趋势下,铝合金轮毂已成为汽车轮毂的首要选择,其成型的主流方式为低压铸造.简要介绍了低压铸造在铝合金轮毂生产上的应用,重点对低压铸造铝合金轮毂的缺陷进行了综述,分析了模具、风冷和水冷、充型工艺等因素对轮毂缺陷的影响,并提出了今后需要重点研究的方向. 相似文献
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挤压铸造2A50铝合金的热处理工艺 总被引:2,自引:0,他引:2
采用挤压铸造工艺生产了2A50大型铝合金轮毂,借助金相组织分析、微观形貌观察和力学性能测试等手段,对2A50变形铝合金在挤压铸造状态下的热处理工艺进行了试验研究。结果表明,合金的过烧温度为530℃;经过505℃×8h+515℃×2h固溶处理和160℃×12h时效处理,合金力学性能σb≥400MPa、δ≥6.5%;合金组织致密,晶粒细化,无各向异性。 相似文献
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C. Reilly J. Duan L. Yao D. M. Maijer S. L. Cockcroft 《JOM Journal of the Minerals, Metals and Materials Society》2013,65(9):1111-1121
Although on initial inspection, the aluminum alloy automotive wheel seems to be a relatively simple component to cast based on its shape, further insight reveals that this is not the case. Automotive wheels are in a select group of cast components that have strict specifications for both mechanical and aesthetic characteristics due to their important structural requirements and their visibility on a vehicle. The modern aluminum alloy automotive wheel continues to experience tightened tolerances relating to defects to improve mechanical performance and/or the physical appearance. Automotive aluminum alloy wheels are assessed against three main criteria: wheel cosmetics, mechanical performance, and air tightness. Failure to achieve the required standards in any one of these categories will lead to the wheel either requiring costly repair or being rejected and remelted. Manufacturers are becoming more reliant on computational process modeling as a design tool for the wheel casting process. This article discusses and details examples of the use of computational process modeling as a predictive tool to optimize the casting process from the standpoint of defect minimization with the emphasis on those defects that lead to failure of aluminum automotive wheels, namely, macroporosity, microporosity, and oxide films. The current state of applied computational process modeling and its limitations with regard to wheel casting are discussed. 相似文献
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利用Niyama判据对重力铸造铝合金摩托车车轮进行了缩孔、缩松预测.根据Niyama判据式G/√R探讨了影响缩孔、缩松的因素,并根据这些影响因素采取相应的工艺措施,消除或减轻了铸件的缩孔、缩松倾向. 相似文献
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采用低过热度铸造和触变锻造相结合的方法制备A356铝合金车轮,研究低过热度铸造A356铝合金坯料的组织、坯料二次加热组织演变规律和触变锻造车轮的组织与力学性能。结果表明:熔体在635℃浇注,可获得具有细小、均匀的非枝晶晶粒的A356铝合金坯料。坯料在600℃等温加热60min后,非枝晶晶粒可转变成球形晶粒,在750kN锻压力下半固态坯料可触变锻造成铝合金车轮。经T6热处理,A356铝合金车轮的抗拉强度和伸长率分别为327.6MPa和7.8%,高于铸造铝合金车轮的拉伸力学性能。将低过热度铸造与触变锻造工艺相结合,可以制备具有较高力学性能的铝合金车轮。 相似文献
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铝合金车轮挤压铸造工艺 总被引:9,自引:5,他引:4
采用挤压铸造代替压力铸造生产铝合金车轮,不仅克服了压铸件内部容易形成气孔和氧化夹杂的缺陷,而且提高了成品率及材料利用率。介绍了铝合金车轮挤压铸造的模具结构及设计参数,分析了挤压铸造的工艺参数及选择依据。 相似文献
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采用挤压铸造代替压力铸造生产铝合金车轮 ,不仅克服了压铸件内部容易形成气孔和氧化夹杂的缺陷 ,而且提高了成品率及材料利用率。介绍了铝合金车轮挤压铸造的模具结构及设计参数 ,分析了挤压铸造的工艺参数及选择依据 相似文献
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分析了箱体零件由锌合金改铝合金的优点,论述了模具的工作过程和设计要点。该模具采用了侧面滑块抽芯机构,侧面成型和底面分型,提高了压铸件的合格率和经济效益。 相似文献
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摩托车铝合金轮毂液态模锻 总被引:1,自引:0,他引:1
采用液态模锻代替压力铸造生产摩托车铝合金轮毂,克服了制件内部容易产生气孔及强度差的缺点.介绍了其液态模锻模具结构及解决锻件热处理后产生气泡的措施和防止粘模的方法. 相似文献
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E. Aguirre-De la Torre U. Afeltra C. D. Gómez-Esparza J. Camarillo-Cisneros R. Pérez-Bustamante R. Martínez-Sánchez 《Journal of Materials Engineering and Performance》2014,23(2):581-587
A356 aluminum alloy automotive wheels, 17 inch in diameter, were produced by low-pressure die casting. Contents of Al-5Ti-B (ATB) master alloy were added from 0 to 0.79 wt.%. Microstructural and mechanical properties were evaluated under industrial casting process conditions. The obtained results from mechanical testing provide evidence that additions of 0.13 and 0.27 wt.% of ATB have an improvement on the mechanical performance of the automotive wheels. This can be compared with the use of a grain refiner’s higher concentrations, leading to a significant reduction in the cost-benefit ratio for the manufacturing of A356 automotive wheels. 相似文献