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induction melting furnace
in induction melting furnace using induction heating
of a conductive medium (usually a metal) in a crucible around which
water-cooled magnetic coils are wound, metals are melted. in induction
furnace the melting process is well controlled. the whole process is
metals are contained in the coreless furnace by the use of refractory envelope and surround that by the coil. induction melting furnace operates on the same basis as a transformer. acting as a single secondary turn the charge produce heat through eddy current flow when power is applied to the multi turn primary coil. after the melting of the metal these electromagnetic forces also produce a stirring action. through careful selection of frequency and power mixing and melting rates can be controlled.
induction channel furnaces are popular induction melting furnace which were used initially as molten metal holders, but are now used for some melting applications as well. it consists of an inductor which is the source of energy and is comprised of a water-cooled coil. for holding metal at temperature, channel induction furnaces are often selected
it is the refractory where the channel is formed through the coil, and this channel forms a continuous loop with the metal in the main part of the furnace. the hot metal in the channel is replaced by the cold metals. the hot metal circulates into the main body of the metal in the furnace envelope. source of primary molten metal is required for the startup of a channel furnace. these furnaces do have lower surface turbulence within the main metal bath. in any operations where gas pickup and volatile metal alloy loss is a problem coreless furnace are preferred.
coreless frequencies are of following frequencies like:
following are the advantages of induction melting furnace:
induction melting furnace are used for various purposes:
page 2 is inducion melting furnace specifications