Vacuum sintering furnace elevating temperature regulation

Vacuum sintering furnace elevating temperature regulation

For vacuum sintering furnace temperature control point, a lot of people are more focus on running the actual peak temperature. Sintering furnace a best temperature range, high count for burning, too low is owed to burn. In both cases are not the best sintering effect. A fine temperature control is to find the best sintering temperature range of key points. How to judge is owed to burn or burnt? Please refer to the electrical parameters on sintering furnace, can be judged by it.
Burn owed, the penetration of silicon nitride, silver paste have residual, then enter the n-type layer of silver paste is less also, ohmic contact effect is bad, causes the resistance of the series. When burnt, the consumption of silver will be more than usual, and will form a silver silicon to form mixed layer, the mixed layer will have the effect of blocking, also can form series resistance is too large. So only through resistance can’t infer that is owed to burn or burnt.
When unable to judge the state of sintering can adjust the temperature of 8 area, find about the regulation of points, and then slowly fine-tuning. Fine-tuning when we look back in the field of the state, if back a shinning, it is out of burnt, so should be fine tuning to reduce temperature.
Before starting the sintering to make sure each heating tubes can run normally. Check the temperature regions tubes of the output power is higher than the average of the temperature range of other tubes, to ensure that the sintering of the average.