SU799632A3 - Crystallizer for continuous metal casting - Google Patents

Abstract

A mold for use in continuous casting of metals in which the backup plates are fastened to the liner by a novel means. The outside faces of the liner have a series of vertical ribs which define with the backup plates a plurality of water-circulation passages. Certain of the ribs have laterally directed lips under which metal strips are inserted. The strips carry studs which extend through the backup plates. Nuts are threadedly engaged with the studs and drawn up tightly. The water-circulation passages are unobstructed and all have the same hydraulic diameters, which are constant throughout the length of the passages. Hence water flowing through each passage has the same velocity.

Description

The invention relates to continuous casting.

A mold for continuous casting of metals is known, comprising a sleeve of heat-conducting material (usually copper) with longitudinal ribs on the outside and external walls (usually steel) forming channels for the passage of the cooler with the sleeve, connected to it by means of studs with metal strips fixed to them and screwed on the outside ha. ek [1].

The purpose of the invention is to increase the reliability of the connection of the outer walls with the sleeve.

This goal is achieved by the fact that at the junction of the outer wall with the sleeve there are additional channels for the passage of the cooler, limited by metal strips pressed against the protrusions of the ribs, while all channels have the same hydraulic diameter along the entire length. Metal strips are made up of individual parts. These strips can be provided with non-flanging edges that cut into the protrusions of the ribs. .

In FIG. 1 schematically depicts a mold; in FIG. 2 - section

II-II nafig. 1; in FIG. 3 - section

III-III in FIG. 2.

The mold contains a copper sleeve 1, two wide walls 2 and two narrow walls 3. In the walls 2 and 3, holes 4 and 5 are made for water inlet and outlet, respectively, at the lower and upper edges. The sleeve can have a different cross-sectional shape, can be made of four parts, etc. n. The sleeve has vertical ribs of the 6th ba. The outer wall 2 abuts against the ribs 6, forming with them channels 7 for water circulation. The ribs 6a are provided with laterally directed protrusions 8, against which metal strips 9 abut, limiting additional channels 7a for water circulation. Water flows through channels 7 and 7a, cooling the sleeve. The strip 9 can be made continuous along the entire length or made up of separate parts, as shown in FIG. 2. The latter design has the advantage of being less rigid. Strips 9 carry studs 10, which can be welded to it or screwed into conical holes. The studs protrude through the outer walls 2 and 3. The nuts 11 are screwed onto the studs from the outside and tightly tightened. Strips and studs may be made of any suitable metal, for example steel, unless this choice is determined by other considerations. Typically, the strips are held in place due to one friction, but if desired, the strips can have knife edges 12 embedded in a softer material. protrusions of the ribs of the liner.

The dimensions of the channels 7 and 7a differ from each other, but have the same hydraulic diameter along the entire length, which ensures uniform oh-15 cooling over the entire surface of the sleeve.

Claims (3)

tapered bore. The studs protrude through the outer walls 2 and 3. The jacks 11 are screwed onto the studs outside and tightly tightened. Strips and hairpins can be made from any suitable material, for example, from studs, if this choice is not determined by other considerations. Usually the bands are held in place due to one friction, but if desired, the bands may have knife edges 12 cutting into softer material. projections ribs sleeve. The dimensions of the channels 7 and 7a are different from each other, but have the same hydraulic diameter along the entire length, which ensures uniform placement over the entire surface of the sleeve. Invention 1. A mold for continuous casting of metals containing a sleeve of heat-conducting material with longitudinal ribs on the outer surface and the outer walls form ducts with a sleeve for the passage of the cooler, connected to it by means of studs with metal strips fastened on them and nuts that are screwed on outside, characterized in that that, in order to increase the reliability of the connection, additional channels for the passage of the cooler, bounded by metal strips pressed against the ridges of the ribs, are made at the junctions of the outer wall with the sleeve, while all the channels have the same hydraulic diameter along the entire length. 2. The crystallizer according to claim 1, wherein the metal strips are made up of separate parts, 3. The crystallizer according to Claim 1, characterized in that the metal strips are provided with knife edges that cut into the ridges of the ribs. Sources of information taken into account during the examination 1. French Patent No. 2112384, cl. B 22 D 11/00, 1972, h (D one. y h , about © + 2