Induction crucible furnace with sonically uncoupled accessible furnace platform

An induction crucible furnace assembly, comprising an induction crucible furnace having a furnace body to be moved between a normal untilted position and a tilted position, said furnace body having a crucible, an accessible furnace platform for covering said furnace body, means for sonically uncoupling said furnace platform from said furnace body in the normal position, coupling elements disposed between said furnace body and said furnace platform, said coupling elements effecting a change of state between a very loose coupling or complete uncoupling in the normal position and a close or rigid coupling in the tilted position of said furnace body, said coupling elements being lug and bolt connections for interconnecting two components in the form of said furnace body and said furnace platform, said lug and bolt connections including lugs each having a slot formed therein and each being fixed to one of said components and bolts being joined to the other of said components and engaging in said slots, for automatically connecting said components with said bolt, said slot and said lug by tilting said furnace body, and for uncoupling said components in the normal position.

An induction crucible furnace assembly, comprising an induction crucible furnace having a furnace body to be moved between a normal untilted position and a tilted position, said furnace body having a crucible, an accessible furnace platform for covering said furnace body, means for sonically uncoupling said furnace platform from said furnace body in the normal position, coupling elements disposed between said furnace body and said furnace platform, said coupling elements effecting a change of state between a very loose coupling or complete uncoupling in the normal position and a close or rigid coupling in the tilted position of said furnace body, said coupling elements being lug, bolt and lug connections each including a first lug having a first slot formed therein and being fixed to said furnace platform a second lug opposite said first lug having a second slot formed therein and being fixed to said furnace body and a bolt engaging in said first and second slots, for automatically connecting said furnace body and said furnace platform with said first lug, said first slot, said bolt, said second slot and said second lug by tilting said furnace body, and for uncoupling said furnace body and said furnace platform in the normal position.

An induction crucible furnace assembly, comprising an induction crucible furnace having a furnace body to be moved between a normal untilted position and a tilted position, said furnace body having a crucible, an accessible furnace platform for covering said furnace body, means for sonically uncoupling said furnace platform from said furnace body in the normal position, coupling elements disposed between said furnace body and said furnace platform, said coupling elements effecting a change of state between a very loose coupling or complete uncoupling in the normal position and a close or rigid coupling in the tilted position of said furnace body, said coupling elements being lug and locking bolt connections for interconnecting two components in the form of said furnace body and said furnace platform, said lug and locking bolt connections including a longitudinally mobile locking bolt joined to one of said components and a lug being fixed to the other of said components and having a bore formed therein in which said locking bolt engages, for connecting said furnace body and said furnace platform during tilting of said furnace body and for disconnecting said furnace body and said furnace platform in the normal position by retraction of said locking bolt.

An induction crucible furnace assembly, comprising an induction crucible furnace having a furnace body to be moved between a normal untilted position and a tilted position, said furnace body having a crucible, an accessible furnace platform for covering said furnace body, means for sonically uncoupling said furnace platform from said furnace body in the normal position, said crucible having a crucible opening formed therein, said furnace platform having an opening formed therein above said crucible opening for extracting emissions being formed upon melting, said furnace platform having an annular channel integrated therein around said opening in said furnace platform, and said furnace platform having an upper surface and sound-insulating walls fixed to said upper surface around said opening in said furnace platform.

An induction crucible furnace assembly, comprising an induction crucible furnace having a furnace body to be moved between a normal untilted position and a tilted position, said furnace body having a crucible, an accessible furnace platform for covering said furnace body, means for sonically uncoupling said furnace platform from said furnace body in the normal position, said crucible having a crucible opening formed therein, said furnace platform having an opening formed therein above said crucible opening for extracting emissions formed upon melting, said furnace platform having an annular channel integrated therein around said opening in said furnace platform, and including a waste air line integrated into said furnace platform, said annular channel leading into said waste air line for removing the extracted emissions, said furnace platform having waste air ducts integrated therein for removing the emissions extracted through said sound-insulating walls, and said furnace platform having a common header integrated therein, into which said waste air line and said waste air ducts lead.

An induction crucible furnace assembly, comprising an induction crucible furnace having a furnace body to be moved between a normal untilted position and a tilted position, said furnace body having a crucible, an accessible furnace platform for covering said furnace body, means for sonically uncoupling said furnace platform from said furnace body in the normal position, and a furnace cover having a cover drive supported on said furnace platform and being uncoupled from said furnace body in the normal position, said furnace cover has a twin-shell construction with an inner shell, an outer shell and sound-attenuating material disposed between said shells, said crucible having a crucible opening formed therein and a raised rim at said crucible opening, and said inner shell having a rim-side annular angle flange engaging around said raised rim.

An induction crucible furnace assembly, comprising an induction crucible furnace having a furnace body to be moved between a normal untilted position and a tilted position, said furnace body having a crucible, an accessible furnace platform for covering said furnace body, means for sonically uncoupling said furnace platform from said furnace body in the normal position, and a furnace cover having a cover drive supported on said furnace platform and being uncoupled from said furnace body in the normal position, said furnace cover has a twin-shell construction with an inner shell, and outer shell and sound-attenuating material disposed between said shells, said outer shell having a characteristic frequency deviating significantly from double a frequency of a power supply to said furnace.