Transactions of Materials and Heat Treatment

Title：Theoretical analysis of thermal efficiency for mould spiral cooling system

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ClassificationCode：TH122

year,vol(issue):pagenumber：2020,45(7):203-210

Abstract：

As the growing maturity of 3D printing technology, the cooling channel of mould could be processed into spiral type by the 3D technology, which could doubling improve the thermal efficiency of mould. The theory of heat transfer was used to analyze the heat transfer of the new spiral channel structure and the traditional straight-though channel structure. Mathematical models were established according to the structural characteristics and the related boundary conditions of two kinds of channels, and the numerical calculation and related themodynamic software simulation were carried out. The results show that the heating (cooling) rate of the new spiral channel is 3-5 times that of the traditional straight-though channel under the condition that the heat dissipation area and the total flow rate of fluid medium for the two kinds of channel structures are equal. Also, the results of simulation are consistent with those of numerical calculation.

Funds：

科技部技术创新项目(12C26212201331)

谢建平（1964-），男，硕士，副教授 E-mail：1766244671@qq.com 通讯作者：黄延平（1963-），男，博士，教授 E-mail：964337115@qq.com

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