SU529638A1 - Electroslag remelting apparatus - Google Patents

Description

one

The invention relates to special electrometallurgy, namely, to electroslag remelting and can be used in ferrous and non-ferrous metallurgy.

The known device to protect the melting space of the furnace from the surrounding atmosphere, made in the form of a mesh funnel filled with granular material 1.

It is also known a device for electroslag remelting comprising a mold with a lid, having an electrode hole and a funnel-shaped valve mounted on the lid and filled with a bulk material.

A disadvantage of the known devices is that when extracting a candle of a consumable electrode from a mold equipped with these devices, the bulk material of the funnel spills into the mold, which leads to an increased consumption of flux or other materials used to protect against the harmful effects of aTMOcqbepbi air.

The purpose of the invention is to allow the removal of bulk material from the gate funnel simultaneously with the cinder of the consumable electrode.

This is achieved by using a device containing an electrode with a mechanism

its movement, a crystallizer with a krppka, a hole for the electrode and a shutter in the form of a funnel mounted on the lid, and the shutter is made of two insulated from each other n placed one inside the other funnels. The inventory part of the consumable electrode is equipped with a gripping mechanism for the inner funnel. At the simultaneous remelting of several electrodes fixed in a removable electrode holder, the mechanism of gripping the inner funnel is made on the electrode holder.

The drawing shows a diagram of the proposed device.

On the mold 1, on the flange of which is placed the insulating material 2, is fitted with a flux valve having a cover 3, an outer funnel 4 and an inner ear 5, with bulk material 6 and annular elements 7, 8 II 9. placed in it. Between the outer funnel

4 and an internal funnel 5 is placed insulating material 10. On the invader part 11 of the consumable electrode 12 a mechanism 13 is installed to capture the funnel

5c levers 14.

The device works as follows.

Before the beginning of electroslag remelting, an internal funnel 5 with annular elements 7, 8 and 9 placed in it is placed inside the interrupted funnel 4 on an insulating material 10 located on the flange of the external funnel 4. Granular flux or other bulk material covering the installed This consumes the consumable electrode 12. Then the process starts and the consumable electrode 12 is removed until it is gripped by the levers 14 of the flange of the inner funnel 5. The burned electrode 12 is removed from the crystallizer 1 one temporarily with interior funnel 5 and a granulated flux and workshop crane is removed from the oven.

Claims (2)

1. A device for electroslag remelting, comprising a mold with a lid having an opening for an electrode with an inventory head and a shutter mounted on a lid having a bore directed toward the funnel, and an electrode holder characterized in that, in order to remove bulk material from the gate funnel at the same time as the cinder of the consumable electrode, the shutter is made of two funnels placed one into another, with the inner funnel is isolated from the outer, and the inventory part of the consumable electrode is equipped with a mechanism for gripping the inner funnel. 2. Device n. 1, characterized in that the internal locking mechanism funnel placed on the electrode holder. Sources of information taken into account at the examination 1. USSR author's certificate No. 340287, cl. C 24C 5/56, 1962. 2. USSR author's certificate but application N ° 2026702/02, cl. From 21C 5/56. 13