Vacuum Annealing Temperature Tontrol Structure Design Of Furnace And Thermal Field Simulation

High Temperature Vacuum Furnace is one of the most important equipment of heat treatment production line, which includes mechanical design, thermodynamics, fluid mechanics, material mechanics and other knowledge. It is multidisciplinary integration equipment which has high degree on automation. The quality of temperature characteristics directly influence the quality of the products, so the temperature control system is very important and the metal heating element design will become the key technology. The better the high temperature vacuum furnace heating element is, the better the high temperature condition is.First, the theory and structure of the equipment were described in the article. And then the key techniques were mainly analyzed.Such a maximum temperature and temperature uniformity. The former accompanies the size of working area and loading amount, determining the heating power and load. And the latter determining the layout of load and insulation materials. Solidworks software was used to finish these jobs, which tried to analysis of the relationship between real temperature of thermal field and the position of load when thermal stability has formed. Then a finite element was established to analyze the effect of the thermal field and the deformation of metal heating element under 1650℃.The actual experiments and simulation results show that the design of thermal field could meet the manufacture requirement.The simulation model real object are basically identical, and anti deformation design improves the life of heating elements, which also provide a new method to improve design of other similar equipments.