Induction Melting & Heat Treat Furnaces

4300 SERIES Induction Melting & Heat Treat Furnaces

50 Lb. Model 5241-2 Semi-continuous operation for melting and casting ferrous and non-ferrous metals and alloys in vacuum or controlled atmosphere. Used for controlled solidification, precision investment casting, charging by prealloyed billet. Mold preheating to 3000° F (1650° C)

100 lb. Model 5241-1 Batch operation for melting and pouring ferrous and non-ferrous metals and alloys in vacuum, partial or positive pressure inert gas atmostphere. Used for ingot production, precision investment casting; charging by scrap recycle or a prealloyed billet.

Vacuum/Controlled Atmosphere Induction Heat Treatment
Batch operation for heat treatment of Carbons, Graphites, and Composites, including Chemical Vapor infiltration.

Features

100 or 50 lb. capacity with tilting coil.
Type 305 Stainless Steel melting chamber jacketed.
Inducton melting furnace chamber internals trunnion mounted, box construction..
External elevated operator platform.
Vertical, free-standing, front access, NEMA-1 cubicle.

Specifications

STD MODEL	5452-1 (100 lb.)	5452-2 (50 lb.)
Capability:	Batch Operation for metling and pouring ferrous and non-ferrous metals and alloys in vacuum, partial or positive pressure inert gas atmospheres. Used for ingot production, precision investment casting; charging by scrap recycle or a prealloyed billet.	Semi-continuous operation for melting and casting ferrous and non-ferrous metals and alloys in vacuum controlled atmosphere. Used for controlled solidification, precision investment casting, charging by prealloyed billet. Mold preheating to 3000° F (1650° C).
Capacity:	100 lb. (45 kg) with tilting coil assembly; 100 lb. ferrous alloy melting time can be 50 to 10 minutes using from 50 to 225 kW power supplies. Pumping system produces 4X10^-6 torr in 18 minutes. Mold size up to 20" maximum diameter and 22" high or multiple molds in the equivalent space.	Up to 50 lbs. with titlting coil. Pumping systems evacuate mold lock to 50 microns in less than 1 minute; melt chamber to 1 micron in 4 minutes. Mold size up to 22" diameter and 24" high.
Chamber:	Horizontally oriented, 54" diameter x 52" straight length Type 304 stainless steel interior, 100% jacketed with mild steel and water cooling baffles. Hinged, full opening door, two 4" clear vision sight ports, 24" ID jacketed mold well, 20" pumping port, stainless steel induction power port.	Cylindircal construction, 52" diamers x 41" deep. Type 304 stainless steel vacuum shell carbon steel jacketed. Hinged full opening door, two 5" clear vision sight ports, immersion thermocouple with proble, two radiation pyrometers, one each for mold and melt, 50 lb. billet charging mechanism, stainless steel induction power ports.
Internals:	Induction melting furnace, 100 lb. (45 kg) trunnion mounted, box construction, high frequency water-cooled power leads, furnace titling mechanism, additions chute assembly, crucible cover, chamger illumination and mold platen turntable.	Induction melting furnace, 50 lb. trunnion mounted, box construction; internal illumination; mold preheating induction coil accepts 14" to 18" diameters x 20" high mold; mold cover.
Mold Chamber:	N/A	Semicircular mild steel construction of approximately 36 cubic feet, copper tubing trace-cooled. Higned, full opening aluminum door; 8" pumping port. Internals include: Dual speed electromechanicl lisft with water-cooled platen, shaft for water and thermocouples; speed ranges are 2" to 24" per hour for slow withdrawal using controlled soldification, 90" per minute for equiax casting; 24" swing-away water-cooled isolation valve.
Externals:	Elevated operator platform, supports power supply and vacuum control cubicle. Hydraulic furnace tilt, six-cup late alloy additions chamber, valved bulk charger, immersion thermocouple, bridge breaker, hydraulic power package.	Operator platform; supports vacuum control cubicle, provides access to control on melt chamber. Manual furnace title, with variable speed electromechanical tilt option.
Pumping System:	20" oil diffusion pump (18,000 liters/sec), stokes 1722 (1300/300 CFM) roughing and backing mechanical booster pump, and a 15 CFM hold pump complete with manifolding, vibration isolation joints and remotely operated vacuum valves.	Melt chamber - 16" oil booster (8,500 CFM) or 20" oil diffusion (17,000 liters/sec), 300 CFM roughing and backing mechanical pump and 15 CFM hold pump. Mold chamber - 1300/300 CFM mechanical blower with manifolding. Vibration isolation joints on mechanical pumps, remotely operated vacuum valves.
Controls & Instrumentation:	Vertical, free-standing, front access, NEMA-1 cubicle; mode selector switch and keylocking override switches for sequence controlled, semi-automatic pumping system. Vacuum monitors include one thermocouple gauge, (1 to 1000 microns range), and one two-station thermocouple gauge (1 to 100 microns range) for chamber or foreline pressures plus one ionization (hot filatment) gauge for chamger submicron range. Components are interlocked to avoid undesirable operating conditions (such as oil migration in the pumping system and inadequate cooling water), to avoid electrical hazards for operting personnel and to prevent loss of vacuum. (Download technical bulletin for full details.)	Vertical, free-standing, frong access, NEMA-1 cubicle, contains self-sequncing pumping system control with graphic panel. Pilot lamps indicate pump opertion and condition of valves. Vacuum thermocuople gauges (1-1000 microns) monitor pressure in melt chamber, mold lock, and booster pump foreline. Induction power supply controls and output instruments. Components are interlocked to prvent operating conditins which might damage them (such as oil migration in the pumping system and inadequate cooling water), to avoid electrical hazards for operating personnel and to prvent loss of vacuum. (Download technical bulletin for full details.)
Power Supplies:	Normally recommended - 225 kW, 3000 Hz solid state frequency inverter; contains controls and output meters; feedback circuits to maintain a regulatored power output throughout a melting cycle without manually changing transformer taps or capacitor steps; capacitors, circuit breaker, high frequency transformer; interlocked cutout for low pressure water supply, limiting circuits function to protect against overload.	Melting - recommended: 60 KW, 300 Hz solid state frequency inverter, contains feedback circuits to maintain a regulated power output throughout a melting cycle without changing transformer taps or capacitor steps. Mold Preheat - recommended: 125 KW, 3000 Hz solid state frequency inverter.
UTILITIES
Power:	460 volt, 3 phase, 60 Hz, three-wire service through user's fused disconnect.	460 volt, 3 phase, 60 Hz amps total connected load.
Water	40 to 60 psig, 70° to 80°F, filtered, total consumption including induction furnace and power supply is 38 gpm piped to drain bosh.	40 to 60 psig, 70° to 80°F, filtered, 35 gpm piped to an open drain.
Air:	80 to 100 psig, filtered and lubricated.	80 to 100 psig, filtered and lubricated.
Space:	14 ft. wide x 14 ft. long x 11 ft. high (4.2m x 4.2m x 3.3m)	N/A