Dispensing – Molten metal dispensing – Flow controllers or assists
Patent
1990-08-07
1991-03-19
Kastler, S.
Dispensing
Molten metal dispensing
Flow controllers or assists
B22D 4122
Patent
active
050003623
ABSTRACT:
The invention refers to a slide-gate shut-off device made of refractory material, of the type having a fixed holed refractory plate (30), a sliding holed refractory plate (40) and underneath the latter solidly joined to it (50), above the fixed refractory plate (30) a fixed refractory sleeve (20), also known as the internal pouring appliance, around which a pouring-appliance holder (11-12) is arranged.
According to the invention, these refractory plates (30, 40) are holed in the center and have a double symmetry; furthermore, said internal pouring appliance (20) becomes gradually thinner towards the top, and at its lower base has a radial thickness approximately double that of the lower sliding refractory sleeve (50), known as the external pouring appliance, the radial thickness of which is approximately equal to the radius R of the casting holes in the refractory plates (30, 40).
REFERENCES:
patent: 3980271 (1976-09-01), Hind et al.
patent: 4076153 (1978-02-01), Tinnes
patent: 4582232 (1986-04-01), Shapland et al.
patent: 4597514 (1986-07-01), Thrower
patent: 4718580 (1988-01-01), Bierbaum et al.
patent: 4789085 (1988-12-01), King
Foglio Salvatore
Ricci Roberto
Timossi Giovanni
ILVA S.p.A.
Kastler S.
Nuova Sanac S.p.A.
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