Precautions for vacuum tube furnace

Precautions and methods for reusing vacuum tube furnace or after long use

Vacuum tube furnace energy - saving ceramic fiber material and double - layer shell structure, with high lifting and cooling speed and low energy consumption. The outer temperature can be reduced to normal temperature and the inner cavity temperature can be evenly distributed.

Precautions and methods for vacuum tube furnace or reuse after long use:

1. When used for the first time or used again after long-term disuse, the oven must be used. Oven time should be room temperature 200℃ for 4 hours. 200℃ to 600℃ for 4 hours. When in use, the furnace temperature must not exceed the rated temperature, so as not to burn out the heating element. It is forbidden to pour all kinds of liquid and soluble metal into the furnace and work below the maximum temperature of 50℃, when the furnace wire has a long life.

2. The controller must work in a place where the relative humidity does not exceed 85% and there is no conductive dust, explosive gas or corrosive gas. A large amount of volatile gas will affect and corrodes the surface of the heating element, which will destroy and shorten its life. Therefore, the heating should be timely prevention and do a good job of sealing container or appropriate holes to remove.

3. The controller shall be used within the range of 0-40℃.

4, according to the technical requirements, regularly check whether the electric furnace, the controller of the connection line is good, indicator pointer movement when there is no stuck stuck phenomenon, and use the potential difference meter to check the instrument due to magnetic steel, demagnetization, wire expansion, shrapnel fatigue, balance damage and other errors caused by the increase.

5, thermocouple do not pull out suddenly in the high temperature, in case of coat burst.

6, always keep the furnace clean, timely removal of oxide in the furnace and so on.

How should the vacuum tube furnace ensure the uniform temperature during use?

First of all, before ensuring the uniformity of temperature, we need to analyze the reasons for the poor uniformity of temperature in muffle furnace. Then according to the specific reasons to find out the solution and preventive measures.

There are many reasons for the uneven temperature. For example, the unreasonable distribution of power, the unreasonable distribution of electric heating elements, the occurrence of circuit breakers, the unreasonable structure of muff furnace or the poor sealing result in the excessive local heat dissipation, so that the temperature of box muff furnace is not uniform.

Therefore, we should check the sealing of the furnace to ensure that the degree of sealing is in accordance with the requirements. Then make sure that the heating elements do not break and improve the structure of the furnace. Aiming at the problem of unreasonable power distribution, the power can be recalculated and improved to make the power distribution more reasonable.