I am searching to carbon heaters. I want to use carbon heaters for heating the galvanizing bath. Our burners has ceramic tube so it is deforming in 3 months. I am thinking to replace with carbon heaters so need some information. Anybody can help me?
Why do you want to use carbon heaters for just heating a bath ? I am only aware of graphite or vitreous carbon resistances working under argon, but they are used for reaching extreme temperatures, higher than 1500 and 2000°C, respectively. In this case, the use of carbon is fully justified, but not for low temperatures.
Alain
Dear Alain,
Actually we are using ceramic tubes but the life of tubes 3-4 months and I want to change them. In ceramic tubes, we are direct heating the ceramic so losing the performance in 3 months.
OK, so you should know why these ceramic tubes don't survive longer. If this is due to chemical attack, carbon can be better ... or not, it depends on the conditions of use. Carbon is resistant to most things except to oxidation when hot. If this is due to thermal shocks, carbon can also be better, although not as good as quartz.
Alain
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