关于提升模具加热效率和热均匀性的仿真研究

发布时间：2018-06-01 12:09

本文选题：模具加热 + ANSYS　；参考：《北京邮电大学》2015年硕士论文

【摘要】：模具加热是液体浸塑工艺中的重要环节,其包括火焰加热、电加热、红外线加热等多种方式。红外线加热因其具有穿透性、热效率良好、升温迅速、温度易于控制等优点,在近几年以很快的速度应用于各个领域。某型号红外线加热炉,对模具加热效率不够高,而且模具温度分布也不够均匀。效率不高不仅造成一定程度的资源浪费,而且使得工作条件变得较差。而模具温度分布不均匀,就会使得一些产品不符合要求。所以,对模具加热过程进行热分析,进而提出模具加热装置的改进方案,对于提高模具加热的热效率并改善热均匀性,是很有意义的。本文通过有限元软件ANSYS模拟加热炉对模具的加热过程。先使用三维软件建模,得到加热装置和模具的三维模型,之后用ANSYS流体模块进行分析,得到炉内温度场分布,并以此为条件进行稳态和瞬态耦合热分析,得到模具加热一定时间后的温度分布,为加热设备的优化提供依据。结合传热学相关知识和有限元分析结果,提出加热炉优化方案,并对方案进行比较,提出最优方案。经过验证,改进后的加热设备能较为明显地提高加热效率,也能在一定程度上改善热均匀性,为实际生产提供了理论指导。
[Abstract]:Mold heating is an important part of liquid immersion process, which includes flame heating, electric heating, infrared heating and so on. Infrared heating is widely used in various fields in recent years because of its advantages of penetration, good thermal efficiency, rapid heating and easy temperature control. A certain type of infrared heating furnace, the mold heating efficiency is not high enough, and mold temperature distribution is not uniform. Inefficiency not only causes a certain degree of waste of resources, but also makes working conditions worse. And mold temperature distribution is not uniform, will make some products do not meet the requirements. Therefore, it is of great significance to analyze the heating process of the die, and then to put forward the improvement scheme of the heating device of the mould, which is of great significance to improve the heat efficiency and the uniformity of the heating of the mould. In this paper, the finite element software ANSYS is used to simulate the heating process of the heating furnace. The three-dimensional model of heating device and mould is obtained by using 3D software, and then the temperature field distribution in furnace is obtained by using ANSYS fluid module, and the steady and transient coupled thermal analysis is carried out under this condition. The temperature distribution of the mould is obtained after heating for a certain time, which provides the basis for the optimization of heating equipment. Combined with the knowledge of heat transfer and the results of finite element analysis, the optimization scheme of heating furnace is put forward, and the optimum scheme is put forward by comparing the scheme. It is proved that the improved heating equipment can obviously improve the heating efficiency and improve the thermal uniformity to a certain extent, which provides theoretical guidance for practical production.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TG76

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