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The medium-frequency walking-beam billet heater 'EBH' is used for the heating of steel billets (ferromagnetic and austenitic qualities) and non-ferrous metals.
The walking beam conveyor, which is driven by a three-phase motor, transports the billets at intervals on water-cooled rails in small steps, i.e. almost continuously through the induction coils, in which the billets are heated to the shaping temperature. Conveying speed and heating capacity are infinitely-variably set to the respective production conditions. The heated billets leave the coil in the desired operating cycle over a fast take-off roller table with a chute or they are removed from the last coil by a robot or by automatic tongs and fed to a defined position before transfer into the forging machine.
The advantages at a glance:
- automatic operation in a specified working sequence
- high availability
- low space requirement, compact design
- fast operating readiness due to short heating-up times, hence less scale layer
- simple operation
- reproducible operating results due to the possibility of setting accurate plant data
- exact temperature control, therefore high dimensional accuracy of forged parts and extremely good tool service lives
- high efficiency, no energy required during longer operating breaks
- no heat stress on the operating personnel
- smoothly adjustable speed of the billet transport
- extremely low wear and shock-free conveying principle
- transport and heating of the individual billets without additional resources
- no adhesion of billets because of the corresponding supplementary equipment on the walking beam system
- short conversion times to other billet dimensions by means of fast coil changing equipment
