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SPECIALISED INFORMATION FOR STATIC CAST STEEL ROLL MAKERS

ELIMINATION OF THE USE OF HOTTOPPING AND ARCFEEDERS IN THE PRODUCTION OF STEELROLLS

NO MORE HOTTOPPING OR ARCFEEDING

1. Modulus calculation taking into consideration:

1.1. Finished roll diameters

1.2. The junction between mainbarrel and top / bottom journals

1.3. Influence of moulding chills with or without sand layer

1.4. Modulus reduction caused by the limited sand thickness between
mould surface and the moulding box

2. Solidification control

2.1. Solidification / feeding distances
- determination of solidification distance
in the top and bottom journal
- how to increase feeding distance

2.2. Reduction of top journal diameter in
order to reduce machining time by the use of
insulation material

3. Feeder calculation

3.1. Feeder modulus

3.2. Minimum feeder volume dependent on steel - analysis

3.3. No arc feeding or hot topping

3.4. Feeder neck calculation

4. Recommendation for steel deoxidation practices dependant on melting methods / procedure

The use of these techniques would allow rolls
to be cast and forgotten until knock - out. No
hot tops arc feeders would be required.


 

    

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