Brass (60Cu-40Zn) often melted by crucible furnace (as schematic picture attached). But melting process has low efficiency, fuel and heat were wasted considerably. I suggested use two ventilator (two engine rotary) for improving efficiency. Probably it has other aspects were ignored. I am pleased if anybody help us to improving process.
Dear Mahdi,
you did not give any information on the heating system. I guess, the heating is done by resistive heating elements placed around the crucible, is not it? If so, you can check their power and re-install more powerful elements. Additionally, you need check an insulation at the crucible’s top. The undesired heat leakage through the top may be significant. Another way to improve the heating efficiency is to change the heating source. You can effectively use induction heating. Of course, if you decide to do that, you need to design the inductor head properly and to adjust your crucible material and dimensions.
Alexander Katz-Demyanetz
Thank you for your positive comment, Heating were applied by methane gas (CH4) and air blasting by a ventilator engine rotary (as shown in schematic picture was attached).
Do you have any requirement to heat by this way? If so, try to intensufy the gas flow, increase its temperature and optimise your crucible wall thickness.
Hi Mahadi
induction heating would be by far the best solution. What are the quantities you are melting ?
Yes as Alberto has said, induction furnaces would be the best. There are small crucible induction furnaces available to meet your need and power efficient. You will have to jettison fossil fuel you're using presently.
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