SU274797A1 - Method of casting thick-wall vessels by electroslag remelting - Google Patents

Description

Union of Soviet Socialist Republics

State Committee

USSR

DESCRIPTION OF THE INVENTION TO COPYRIGHT CERTIFICATE (61) Additional to ed. certificate-wu (22) 3Approved on 1/17/69 (21) 1298388 / 22-02 with the addition of application No. (23) Priority (.1) 274797 (51) M. Cl ²

C 21 C 5/56 for inventions and discoveries

Published on June 25th, 1980. Bulletin No. 23

Date of publication of the description 28.06.80 (53) UDC621.365.

.3 (088.8)

(72) The inventors B.E. Paton, B.I. Medovar, L.G. Puzrin, I.I. Kumpp, G. A. Boyko, V. Ya. Saenko, V. B. Ronis, V. Ya. Karpov, A. F. Dovzhenko and G. Ya. Kirzon

(71) Applicant

Order of Lenin and the Order of the Red Banner of Labor Institute of Electric Welding. E.O. Patona (54) METHOD FOR CASTING THICK-WALLED VESSELS BY ELECTRIC SLAG REFINING,

There is a known method of casting hollow ingots with an electrosaccharide varnish remelting of tubular electrodes into a cooled mold with an internal forming element.

A distinctive feature of the described ^{1 * * * 5} method is that the consumable electrode is first melted with a mass equal to the mass of the bottom of the vessel, after which the internal forming element is lowered into the mold and additional remelting is carried out.

The method is as follows. Epectroslag remelting is carried out in a water-retaining mold, consisting of a stationary forming element and a movable internal forming element, made respectively in the shape of the bottom and the outer surface of the vessel. In the process of smelting and electric _meters solid section forming the inner member is in a raised position and as the electrode is fed down melt; After the melting of the solid section electrode and the transition cone electrode, the inner forming element is set to the lower extreme position at a distance equal to the thickness of the bottom wall from the outer forming element along the axis of the vessel. Then fuse the tube electrode of another unhappy section.

Claims (1)

There is a known method of siphoning off the bottom of the bed with a KOB by the epelectrospacial remelting of tubular electrodes into a cooled mold with an internal forming element. A distinctive feature of the described method is that first a consumable electrode with a mass equal to the mass of the bottom of the vessel is remelted, after which an internal forming element is lowered into the mold and additional remelting takes place. The method is as follows. Electroslag remelting is carried out in a water-forming mold, consisting of a stationary forming element and a movable internal forming element, made accordingly in the shape of the bottom and the outer surface of the vessel. In the process of melting a solid electrode, the inner forming element is in a raised position and, as the electrode melts, moves downward; After the solid section electrode and the transition cone electrode are completely melted, the inner forming element is set to the lower extreme position at a distance equal to the bottom wall thickness from the outer forming element along the axis of the vessel. Further, the electrode of a tubular or other non-continuous section is fused. Claim method The method of casting thick-walled vessels by electroslag remelting of tubular consumable electrodes into a cooled mold with an internal forming element, characterized in that, in order to improve the formation of the bottom of the vessel, the consumable electrode with a mass equal to the mass of the vessel bottom is first melted into the crystallizer, then an internal forming element is introduced and further remelting takes place.