April 19, 2021
The general industrial oven is equipped with temperature uniformity parameters: the natural flow oven is the upper limit of working temperature multiplied by 3, and the forced flow drying box is the upper limit of working temperature multiplied by 2.5. But the industrial oven does not set the temperature uniformity parameter, this is why?
The vacuum oven relies on the gas molecular movement to make the studio temperature uniform almost no longer.
Therefore, conceptually, we can no longer use the definition of temperature uniformity specified in the usual industrial oven to the vacuum oven.
This specific requirement under the vacuum state is also meaningless. The amount of thermal radiation is inversely proportional to the square of the distance. The radiation heat received 20 cm from the heating surface is only 1/4 of the 10 cm from the heating surface. The difference is still relatively large. This phenomenon and winter sun, the sun is very warm, not the sun side is colder is the same reason. Because the vacuum oven is difficult to make the radiation heat of each point in the studio space uniform and the authoritative evaluation method is lacking, this may be the important reason why the temperature uniformity parameter is not set in the industrial oven standard