UA69514A1 - Method for obtaining amorphous and fine-graininess metals - Google Patents

Abstract

The invention relates to special electrometallurgy, namely, to the method for obtaining of amorphous and small-graininess metal materials on the base of induction melting in sectional mould. The aim of the invention consists in optimizing technology process for obtaining the final product, and improvement of its quality. The process is made by cycles, alternating the metal covering with ice on the rapidly rotating disc-mould, which is put in contact with melt, at that during freezing the used blank is immobile, and during accumulation of liquid metal in the bath the blank is removed up. In addition to this, during freezing the consumption of liquid metal shall not be more than a half of volume of the bath pressed out part.

Description

the upper section of the crystallizer (at least 10 mm). The rotating crystallizer disc is lowered and brought into contact with the melt and, slowly lowering it, metal crystallization occurs on the moving surface of the disc. The metal crystallized on the disk in the form of pieces of ribbons and scales detaches from the disk under the action of centrifugal force! and accumulates on the bottom of the chamber. Having lowered the crystallizer disc to the upper part of the crystallizer, it is raised up to the initial position and the consumable billet is fed upwards. As the billet rises, it melts in the inductor zone and thus a new portion of liquid metal accumulates. After the accumulation of the necessary volume of liquid metal, the supply of the consumable billet is stopped, and the rotating disc is lowered again, repeating the crystallization of a new portion of metal. Further, the accumulated metal in the bath is renewed by lifting the spent workpiece, i.e. the process is repeated cyclically. At the end of melting (the pallet reaches the lower winding of the inductor), the power to the inductor is turned off, the rotation of the crystallizer disc is stopped, and the melting chamber is depressurized to extract the obtained material and prepare a new melt. "- " "- iv) (22) (Se) . and (22) se) 1 -

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Claims (2)

Formula of the invention - 1. The method of obtaining amorphous and fine-grained metals, including obtaining the initial melt by the induction bar method of the initial billet and its subsequent freezing on a rotating copper disk, characterized by the fact that, in order to optimize the technological process of obtaining the finished product and improve its quality, the initial billet is placed vertically position 7/0 inductor-crystallizer, melt its upper part, move the workpiece up until a convex layer of pressed metal appears above the section of the inductor-crystallizer, stop feeding the workpiece, bring the rotating copper disk to the upper point of the meniscus of the pressed layer of the melt, move the copper disk to contact with the upper with a slice of the inductor-crystallizer, a portion of the metal is frozen, after which the copper disk is removed and the process is repeated cyclically. 2. The method according to claim 1, distinguished by the fact that the volume of metal is frozen in one cycle by a value not exceeding half! the volume of the squeezed melt layer. Official bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2004, M 9, 15.09.2004. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. «- « « «- IF) (o) (Se) - and? (o) se) 1 - 70 s» - 60 b5