SU1470779A1 - Apparatus for treating metal - Google Patents

Abstract

This invention relates to the field of metallurgy, namely, the refining of a metal using a vacuum. The purpose of the invention is to expand the technological capabilities of the device. A metal processing device has a tank for metal, supplied with induction units, with V-shaped channels, a suction and drain metal lines, a continuous non-conductive partition dividing the mouth of the channel of each induction unit, and the mouth of the suction and drain metal lines. The height of the device decreases. 2 Il.

Description

one

This invention relates to metallurgy, in particular to the refining of metals using.

The aim of the invention is to expand the technological capabilities of the device.

FIG. 1 is a schematic of a metal treatment apparatus; FIG. 2 is a section A-A in FIG. one.

The device consists of a vacuum chamber 1 communicated with a container 2 for metal by means of a suction 3 and drain 4 metal pipes with variable sections along the length. Capacity 2 is equipped with induction units containing I-shaped channels 5 and 6, covered by inductors 7 and 8. In the cavity of container 2 there is a continuous un-electric. a conductive partition 9, separating the mouth of each of the channels 5 and 6., as well as the mouth of the suction 3 and drain 4 metal.

The device works as follows.

Molten steel is poured into vessel 2, in which the mouth of metal pipes 3 and 4 preheated by gas is immersed. A system for creating a vacuum in the vacuum chamber 1 is turned on. Under the effect of the residual pressure of the metal, the metal its up to the working level.

Include inductors 7 and 8 in counterphase. In liquid metal coils closing along symmetric circuits: channel 6 (5) - capacity 2 - metal wire 3 - vacuum chamber 1 - metal wire 4 - capacity 2 - channel 6 (5) As in the secondary windings of a transformer, an electric current is induced to heat the metal. Under the action of electromagnetic forces resulting from the vortex effect, the melt rises from the tank 2 through the suction metal line 3 into the vacuum chamber 1 and, after processing, enters the tank through

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about

drain metal pipe 4. Simultaneously, the transit movement of metal from one half of the tank to the other through channels 5 and 6, which prevents overheating of the alloy in them. At the end of the process of vacuuming the metal, the vacuum system is turned off, and the alloy is lowered from the vacuum chamber 1 into the tank 2. The voltage on one of the inductors is reversed. In the liquid metal loop that closes along the contour: channel 6 - capacitance 2 - channel 5 - capacitance 2 - channel 6, an electric current is induced to compensate for thermal losses in the metal.

The possibility of long-term melt delivery in the gap: ah between vacuuming significantly expands the technological capabilities of the device, since it allows additional metal processing, routine repair of the vacuum chamber, unloading of finished castings from it without a lock, etc.

Placement of current induction systems on the external walls of the tank

The metal level reduces the height of the device, which simplifies its operation.

In addition, it allows choosing the length of metal pipes in accordance with the density of the metal being processed and the depth of the working vacuum, without taking into account the overall dimensions of the inductor.

Claims (1)

Invention Formula A device for metal processing, containing a vacuum chamber, communicating with a container for metal by means of suction and drain metals of hells, characterized in that, in order to expand technological capabilities, the container for metal is equipped with induction units with i-shaped channels and a continuous non-conductive partition located containers so that the mouth of the channel of each induction unit, as well as the mouth of the suction and drain metal pipes are separated. Fig. / / I- A Phage. 2