Back to results
US 4,698,897 AGranted
Making hot roller steel strip from continuously cast ingots
AssigneeMannesmann Aktiengesellschaft
InventorsKlaus Frommann, Ulrich Skoda, Peter Meyer
Life of this patent
Estimating the term…
Abstract
Continuously cast thin slab ingots are coiled, cut, uncoiled and rolled down to thin strip material. For a single casting line a single back and forth rolling stand is used; multiple continuous casting lines can service a single unidirectional rolling mill. The rolling temperature is attained by heat retention in the coils.
Claims14
Method for making steel strip by means of operating steps carried out in immediate sequence and comprising the steps of:
- continuously casting a strip-like but relatively thick ingot which solidifies;
- Next, coiling the strip-like casting following solidification for obtaining a plurality of coils on a continuous basis commensurate with the casting process, while retaining a significant amount of heat in each coil;
- cutting the casting upon completing a particular coil for obtaining the coils of the plurality;
- uncoiling coils of the plurality of coils as produced on a continuing basis;
- and
- hot rolling each uncoiled strip down, one after another to a thinner strip or skelp.
3 more elements
Arrangement for the manufacture of steel strip or skelp comprising:
- means for continuous casting of strip-like ingot material;
- means disposed downstream from the means for casting for coiling the strip-like ingot;
- means disposed for transversely cutting the strip-like ingot at a location between the means for casting and the means for coiling;
- means for transferring a coil from the means for coiling to obtain temporary buffering;
- means connected to the means for transfering to receive therefrom a coil as buffer- and provided for uncoiling the coiled strip;
- and
- rolling means disposed in line with said means for uncoiling for reducing the thickness by means of hot rolling to a thinner strip.
4 more elements
Equipment for the manufacture of steel strip comprising:
- a plurality of means for respectively casting a plurality of steel strips in parallel operation;
- a plurality of cutting means respectively for transversely cutting said cast strips;
- a plurality of coiling means for separately coiling the cast strips as cut;
- a single uncoiling means for uncoiling the coiled strip;
- means for transferring a coiled strip from each of said means for coiling of the plurality to said single means for uncoiling;
- and
- means for hot rolling said uncoiled strip.
4 more elements
Dependencies are inferred from the claim text.