Vacuum heat treatment furnace hearth maintenance

In the process of use of vacuum heat treatment furnace, it is common for people to have the problem of carbon deposit, and the vacuum heat treatment furnace is to analyze the reasons for the carbon deposition in the vacuum furnace.
1. Long-term non-charcoal burning;
2. Carbon controller fails;
3. Long-term use of high carbon potential, the flow of enriched gas is too large, and it is easy to get carbon in the furnace.
4. The atmosphere is not in control.
5. The most easy to accumulate carbon or methanol cracking is not sufficient.
6. The differential adsorption is excessive.

If the radiation tube is carbon, the consequence is more serious. It is easy to cause the furnace temperature to rise or rise slowly. In this case, the carbon can be effectively removed from the carburized carbon brick and the radiated pipe.
Method is room didn’t product before and after, under the condition of room temperature after the best at about 800 ℃. Then you open the front door with the fire, and then put out the fire. Open the middle door for about 1 minute, then turn on the middle door for one minute after 5 minutes (so repeatedly 3 times). The carbon in the furnace is about the same.