1. uniformity:
(1) Definition: refers to the consistency of the temperature spatial distribution in the furnace. exceptionality
The test method for box furnaces is to determine eight angles (vertices) from the inside of the furnace at a specified temperature.
The temperature of eight points at 50mm and the center of the furnace, a total of nine points, the greatest difference is the furnace
Temperature uniformity.
(2) The excellent temperature uniformity of the Muffle furnace is mainly due to the optimal distribution and distribution of the heating elements in the furnace
The thermal insulation performance of the furnace wall, especially the thermal insulation and sealing performance of the furnace door.
(3) The temperature uniformity of Muffle furnace is very important for practical application, the better the temperature uniformity, the larger the workpiece
The better the consistency of the results of heating treatment (sample) and multiple workpieces (sample) at one time
It will cause uneven machining of the workpiece or inconsistent machining effect of each workpiece
2. Temperature stability:
(1) Definition: refers to the change of temperature in the furnace with time. Its detection
The method is to record the temperature continuously for 30 minutes after the furnace reaches the specified setting temperature
The maximum difference of degrees is used as the temperature stability index of the furnace.
(2) Wolff high temperature electric furnace adopts PID (proportional integral differential) controller, temperature stability
The minimum can reach ±0.2, which is not comparable to other brands.
(3) The Muffle furnace does not have the problem of temperature "overshoot", and the temperature directly rises to but will not be higher than the setting
Value, and enter a stable control state, while achieving a sufficient heating rate.
(4) Temperature stability Stable and accurate control of the sample heating process and multi-batch sample heating
Consistency in processing results is particularly important
Temperature accuracy: refers to the actual temperature of the furnace center and the set temperature or indicating temperature
The difference in degrees. The temperature of the Muffle furnace can be calibrated to a sufficient accuracy.
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