What factors affect the vacuum induction furnace temperature to transfer

What factors affect the vacuum induction furnace temperature to transfer

Based on the temperature field distribution equations, the internal heating type vacuum furnaces throughout the distribution of temperature field, the first depends on several aspects. The data evenly into the thermal conductivity of data of uniform density P and uniform than hot melt. Affect the vacuum furnace temperature outward transfer elements, include the following three points:
A, the strength of the furnace heating element, in the planning, first choose inner heat source. Internal heat source heating, temperature, from inside to outside. The strength of intrusive directly affect the temperature distribution in the furnace condition. By (5) type to be able to see, when the higher the heat inside roar must point the higher the temperature, temperature difference (delta T) must be together to spread area (r). So, in the process of produce practice, i.e. after manipulation of the core of appearance load furnace core power manipulation of the temperature distribution in the furnace.
Second, the response of material from the furnace core intervals (delta r), as the core power will be punctual, that is the strength of the inner heat source will be punctual, and interval of furnace core is more far the response of materials, the lower the temperature, can not reach the required temperature response. As close to the furnace core intervals, the higher the temperature, the more conducive to echo.
Third, the burden of the cooling function, burden of heat dissipation function better, internal heat to the faster loss, heat loss in the reaction of material, easily causes must point temperature drop. But if echo is expected to heat dissipation function owe good, heat is needed for convergence, allows heat to pass time longer, is advantageous to the reaction of material to absorb heat and response to, progress must point temperature. Should have under the condition of high vacuum (pa) 4 ~ 13, reaction temperature 1200 ℃ or so, core temperature will soon be able to reach the required value, thus the length of the response time depends on the reaction of material thickness, namely the interval of reaction furnace core periphery expect furnace insulation layer. Can after planning furnace scale manipulation of the power supply.