How does a vacuum furnace measure temperature at 9 o 'clock

When the vacuum furnace is used, it is necessary to measure the temperature at 9 o 'clock. Let's find out!
First of all, it is confirmed that all the instruments are effective. According to on-site product and process execution, nine samples are taken for inspection, and the test content includes hardness and metallographic structure. Then, it is determined whether all samples taken at the nine-point position are unqualified.
Measuring temperature at 9 o 'clock is not difficult actually, according to present condition, have 3 kinds of methods to be able to achieve.
1. There is only one single channel thermometer, which is measured by manually rotating each channel, so that the error of each channel is consistent and can truly reflect the deviation in the furnace.
2. There is a patrol instrument that can automatically switch each channel signal, but only replace example 1 with automatic switch.
3. There is a multi-channel recorder (of course, 12 channels or above), which can be paper or paperless, and can show the temperature in the furnace at the same time. Since the error of each channel is inconsistent, the actual measurement data should be corrected.
The general well type furnace is the intermediate cross plug type, see your electric furnace is several areas, if it is two areas to measure the temperature, is simple carburization temperature high thermocouple requirements are also high, preferably S type thermocouple material is 2520.

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