双真空热处理炉的设计研究

doi:10.13385/j.cnki.vacuum.2026.01.13

Abstract

Abstract: A dual-vacuum heat treatment furnace design scheme has been proposed for dedicated materials in the nuclear industry, which simultaneously addresses the special requirements of preventing workpiece contamination during heating and maintaining strict thermal environment control in precision production workshops. The overall structural design of the dual-vacuum heat treatment furnace is introduced, with emphasis on the solution proposed to accommodate the thermal expansion and elongation of the muffle furnace tube within the heating chamber. A dual-vacuum system has been constructed, and numerical simulation analysis along with on-site experimental validation has been conducted for the heating chamber. Both the experimental and simulation results indicate that the temperature and uniformity of the designed dual-vacuum heat treatment furnace meet the process requirements. Test results show that key indicators such as vacuum pressure, pump-down efficiency, and cooling efficiency all meet the process specifications. The development of this equipment provides a scientific basis and practical guidance for the design of similar apparatus.

Key words: double vacuum, heat treatment furnace, simulation analysis, design

CLC Number: TG166.1

JIA Shouya, WU Long. Design of the Dual Vacuum Heat Treatment Furnace[J].VACUUM, 2026, 63(1): 82-87.

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Design of the Dual Vacuum Heat Treatment Furnace

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