BRONZE and BRASS
HEATING
Burners to heat bronze
crucible type furnaces are usually premix or nozzle mix tunnel burners capable of
withstanding the back heat. The premix arrangement can be less expensive with the option
of using an open, cast iron tip, but if fully automatic operation and minimal wasteful
secondary air is desired the nozzle mix, with the ability to ignite on a low rate, is
generally preferred.
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The burners fire tangentially around a crucible in either a fixed or a
tilting type furnace.
Due to the possible compositions of bronze and even brass, the melting and pouring
temperatures can range from 900oC to 1280oC.
The approximate hourly demand for bronze is 6-7 MJ/kg (2700-3000 BTU/lb).
Frequently to protect the crucible and to reliably control the process, the temperature
sensing probe is located in the combustion space, monitoring the temperature and
modulating the burner automatically.
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BILLET HEATING AND HOT
STAMPING
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Our premix burner tips are used arranged as appropriate along the billet
furnace side. We can design
and manufacture economical billet heating furnaces from continuous push type to smaller
work place stand alone preheaters.
The dies usually require preheating
and heating in down time periods. |
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Illustrated is a
typical small die heating burner.
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