Sealing between a casting nozzle and at least one continuous traveling casting belt
AssigneeLarex A.G.
InventorWilhelm F. Lauener
Life of this patent
Estimating the term…
Abstract
Prior to reaching the nozzle's exit, the belt is pressed from outward against the nozzle by means of a rail supported by springs whereby the mould is reliably sealed off under all working conditions. Pressing the belt against the nozzle can also be achieved by means of pistons or the direct hydrostatic and/or hydrodynamic effect of the coolant from the outside or through various combined measures. In order to reduce friction and wear, the nozzle in the area of contact with one belt can be provided with a wear-resistant coating or wear-resistant inserts. This sealing method enables a casting process with high metallostatic pressure, consequently resulting in a high quality product.
Claims25
A method of sealing a mould for a twin belt continuous casting apparatus comprising the steps of:
- providing a pair of casting belts, each having a casting width, in contacting relation with a casting nozzle so as to form a mould space at an exit of said casting nozzle;
- providing a pair of rail means for applying pressure along an entire extent of each of said casting widths, respectively;
- and
- applying a yielding load to each of said rail means, so as to induce a pressure sufficient to achieve a gap free seal between said casting nozzle and each of said casting belts.
A method of sealing a mould for a continuous casting apparatus comprising the steps of:
- providing a casting belt, having a casting width, with a casting nozzle, having a mouthpiece, so as to form a mould space at an exit of said casting nozzle;
- guiding said casting belt in a substantially straight direction over the mouthpiece of said casting nozzle;
- and
- applying a uniformly distributed pressure along an entire extent of said casting belt casting width, said pressure being sufficient to achieve a gap free seal between said casting nozzle and said casting belt.
A method of sealing a mould for a twin belt continuous casting apparatus comprising the steps of:
- providing a first and a second casting belt having first and second casting widths, respectively, with a casting nozzle so as to form a mould space at an exit of said casting nozzle;
- providing a rail means for applying pressure along an entire extent of said first casting width of said first casting belt;
- providing a support means for supporting said second casting belt;
- applying a yielding load to said rail means for inducing a pressure sufficient to achieve a gap free seal between said casting nozzle and each of said casting belts.
A method of sealing a mould for a twin belt continuous casting apparatus comprising the steps of:
- providing a pair of casting belts, each having a casting width, in contacting relation with a casting nozzle so as to form a mould space at an exit of said casting nozzle;
- disposing a pair of pressure chambers adjacent said pair of casting belts, respectively, each pressure chamber extending across one of said casting widths and having an opening adjacent one of said casting belts;
- directing pressurized fluid into each of said pressure chambers so as to apply hydrostatic pressure against an entire extent of each of said casting widths, respectively, said pressurized fluid being at a pressure sufficient to achieve a gap free seal between said casting nozzle and each of said casting belts.
A continuous casting sealing apparatus comprising:
- a casting nozzle means for providing molten metal;
- a pair of continuous casting belts, each having a casting belt width, positioned in contact with said casting nozzle means so as to form a mould space for receiving molten metal emanating from said casting nozzle means;
- a pair of rail means for applying pressure along an entire extent of said casting belt widths;
- a yielding load means for selectively applying pressure to each of said rail means.
Dependencies are inferred from the claim text.