Combined rolling and pressing method and device for the implementation thereof

Abstract

Proposed is a device for the combined rolling and pressing of a cast billet, which comprises a roll with a groove and a roll with a projection, which from a working roll opening, at the exit from which there is disposed a die, mounted in the slot of a die holder. The upper part of the projection on a roll has a T-shaped surface. The roll with a groove comprises projections, and the roll with a projection comprises slots, which are arranged in relation to one another such that the projections and grooves enable a labyrinthine engagement of the rolls. The die is designed such that it can be fixed in position relative to the die holder with the aid of mating slots and projections provided in the die and the die holder. Gaps are provided for in the working roll opening between the surfaces ofthe rolls and the die. The device further comprises a device for adjusting the temperature of the cast billet that is being fed in, said device being mounted upstream of the rolls. During implementation of the method for the combined rolling and pressing of metals or alloys, a cast billet with a pre-set temperature is fed into the working roll opening for rolling and then into a die for pressing.As the cast billet is fed into the roll opening, a cladding layer of a metal or alloy is formed on the surfaces of the rolls as a result of the cast billet being squeezed through the gaps formed between the surfaces of the rolls and the die. The present invention provides an improvement in the quality of the resulting long components, and also an increase in the efficiency of the process as a whole.

Description

technical field [0001] The invention relates to the field of metal deformation processing and can be used to produce extrusions, wire rods and sector conductors, mainly of aluminum and aluminum alloys, by means of a method for combined rolling and extrusion. Background technique [0002] A device and a method for continuous casting are known from patent RU2547775 (B22D11 / 12) published on April 10, 2015. A continuous casting machine for metal products comprising a mold and several restrictive guides with rollers for guiding a cast metal product emerging from the mold, the cast metal product being provided with one or more mixed type restrictive guides, Each hybrid-type restrictive guide comprises one or more guide rollers on one side of the metal cast product and an insulating and / or reflective and / or heated panel on the opposite side of the metal cast product, wherein the hybrid-type restrictive The restrictive guides are located in the extension of one or more restrictive ...

AI Technical Summary

Problems solved by technology

[0026] The design disadvantage of this prototype is that the design of the die holder does not provide fixation of replaceable parts of the die by rotation around the extrusion axis

This makes it impossible to provide a uniform gap between the contact surfaces of the fixed die and the movable roll, and the steel-to-steel contact causes severe wear on these parts

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