Back to results
US 7,024,750 B2Granted
Method for the manufacture of layered metal product slabs and layered metal product slabs
AssigneeOutokumpu Oyj
InventorsMika Isokytö, Saara Koski-Laine, Taisto Koskinen, Ari Lind, Kauko Rajamäki
Life of this patent
Estimating the term…
Abstract
A method for the production of a layered metal slab by casting, which strip contains a central layer (2) and surface layers (3) on either side of it. The central layer (2) is introduced as a strip through a mould (4), into which is introduced molten metal (5), the mould (4) is cooled, whereupon a layered structure (1) is formed as the metal solidifies.
Claims16
A method for the production of a layered metal slab by casting, said slab comprising a central metal layer and surface metal layers on opposite sides of the central layer, the method comprising:
- providing a mould in which the layered metal slab is formed, the mould shaped to form the surface layers on the opposite sides of the central layer;
- providing a launder element with an opening therein;
- introducing the central layer as the strip through the opening in the launder element and through the mould;
- conducting molten metal into the mould via the launder element to form molten metal surface layers on the opposite sides of the central layer;
- cooling the mould to form the layered metal slab as the molten metal surface layers solidify, the surface layers being metallurgically bonded to the central layer of the slab, the whole thickness of the slab being in the region of 100-200 mm;
- and
- working the layered metal slab by rolling.
4 more elements
Dependencies are inferred from the claim text.