Numerical simulation on thermal insulation effect of heat shield for vacuum furnace

doi:10.13251/j.issn.0254-6051.2022.06.044

Abstract

Abstract: Vacuum furnace with metal furnace bladder is mainly used to process some metal products which require a high vacuum atmosphere. The heat shield of the furnace is relatively expensive to manufacture and difficult to modify. Through simulation on the thermal insulation effect of the metal heat shield of the WZDGQ-40 vacuum furnace, the temperature field of each heat shield was obtained. The results show that when the distance of the two middle heating belts is adjusted to 200 mm, the temperature of the outer layer of the furnace is reduced by 80 ℃, which means that reasonable heating belt width and heating belt spacing can improve the thermal insulation effect of the furnace, and that the simulation can provide a certain reference value for the manufacture of this type of equipment in the future.

Key words: vacuum furnace, furnace bladder, numerical simulation, thermal insulation effect, heating belt

CLC Number:

TG232.6

Wang Shuobin, Cong Peiwu, Lu Wenlin, Du Chunhui, Chen Xuyang. Numerical simulation on thermal insulation effect of heat shield for vacuum furnace[J]. Heat Treatment of Metals, 2022, 47(6): 249-252.

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