B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 11/04 (2006.01) B22D 11/053 (2006.01) B22D 11/055 (2006.01) B22D 11/14 (2006.01)
Patent
CA 2269130
Apparatus for the continuous casting of steel slabs, especially low thickness slabs at high speed, comprising a mold (1) fed by the submerged nozzle (2) and connected to an oscillator (3) driven by a hydraulic servocontrol, wherein the following geometrical relation is valid concerning both the mold and the submerged nozzle shapes and their mutual arrangement: 0.9 <= (A1/S1)/(A2/S2)<= 1.1 and preferably A1/S1=A2/S2, wherein, on the mold horizontal section at the meniscus level, A1 is the area enclosed between the submerged nozzle and larger sides of the mold, and A2 is the residual area less the nozzle area, between submerged nozzle and smaller sides, S1 and S2 being the total sums of the mold peripheral lengths corresponding to each of said areas. Furthermore, at least in the mold horizontal section at the meniscus level, the distance between submerged nozzle and copper plates forming the mold walls is kept constant.
L'invention concerne une unité d'équipements qui sert à la coulée continue de brames d'acier, en particulier des brames de faible épaisseur obtenues à grande vitesse, et qui contient un moule (1), lequel est alimenté par une tuyère (2) immergée et est relié à un oscillateur (3) entraîné par une servocommande hydraulique. La relation géométrique (A1/S1)/(A2/S2) = 0,9 DIVIDED 1,1, dans laquelle de préférence A1/S1 = A2/S2, s'applique aux formes du moule et de la buse immergée ainsi qu'à la disposition de l'un par rapport à l'autre. Dans ladite relation géométrique, sur la section horizontale du moule au niveau du ménisque, A1 est la zone comprise entre la buse immergée et des côtés plus grands du moule, A2 est la zone résiduelle placée sur ladite section entre la buse immergée et des côtés plus petits, S1 et S2 étant les sommes totales des longueurs périphériques du moule correspondantes à chacune desdites zones. En outre, au moins dans la section horizontale du moule au niveau du ménisque, la distance entre la buse immergée et des plaques de cuivre formant les parois du moule est maintenue toujours constante.
Arvedi Giovanni
Bianchi Andrea
Manini Luciano
Arvedi Giovanni
Brouillette & Associes/partners
LandOfFree
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