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Foundry
The foundry supplies all casting forms, either as chill moulds or sand moulds for the pieces to be cast.
The melting factory has 8 induction furnaces with a capacity of 3 to 30 tons, so that pieces of up to 130 tons can be manufactured. The four large furnaces were installed in a row on a newly erected furnace platform. They are operated via a central fully electronic platform and are permanently controlled. The requested alloy and mixture is calculated with modern computer aided systems. The reference alloy is passed on to the furnaces as a target specification. The mixture specification contains the necessary raw-materials such as scrap, circulation material, alloys etc., which are needed to achieve a specified alloy.
Utmost modern computer controlled systems and analysing technology support the operating of the entire foundry. The furnaces are the basis for the explicitly proven quality of the rolls, the stability of the material alloys and the entire melting processes.
The casting procedure takes place mainly in casting pits for statically cast rolls, in centrifugal cast furnaces for centrifugal cast rolls and pipes as well as in casting shapes for casting parts.
The foundry is also responsible for the annealing of the work-pieces to reduce the material tension and to carry out the thermal material treatment. Due to the specific requirements the foundry works in three shifts.
Capacities
| Melting Facilities: | 8 electrical melting furnaces (induction), from 3 to 30 tons each |
|---|---|
| Casting Facilities: | static single poured and compound casts - single pieces up to a maximum cast weight of 130 tons, over a diameter of over 1,700 mm and 13 m length horizontal/vertical centrifugal cast machines for single poured and compound cast pieces up to a barrel length of 6 meters vertical spin casting machine for rolls up to 11,5 m length and 75 tons finish weight |
| Heat Treating Facilities: | 15 gas-fired heat treatment furnaces |
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