Method for production of hot-rolled semi-finished products from aluminium deformable alloys with scandium

Asymmetric rolling with controlled speed ratios and temperatures addresses the limitations of existing methods by enhancing ductility and reducing cycle time in producing hot-rolled semi-finished products from aluminum alloys.

RU2865607C1Active Publication Date: 2026-07-07FEDERAL STATE BUDGETARY EDUCATIONAL INSTITUTION OF HIGHER EDUCATION MAGNITOGORSK STATE TECH UNIV N AG I NOSOVA
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
RU2025139348
Authority / Receiving Office
RU · RU
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-07-07
Estimated Expiration
2045-12-30

AI Technical Summary

Technical Problem

Existing methods for producing hot-rolled semi-finished products from aluminum-magnesium-manganese-zirconium-scandium alloys face limitations in technological plasticity due to restricted reductions per pass, leading to increased cycle times and costs.

Method used

Asymmetric rolling with controlled peripheral speed ratios and temperature conditions during the finishing pass to induce large shear deformations, creating a fragmented metal structure and enhancing process ductility.

Benefits of technology

This approach allows for a single-pass finish rolling with improved technological plasticity, reducing the cycle time and production costs by achieving a finer grain structure and lower hardness values.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000002_ABST
    Figure 00000002_ABST
Patent Text Reader

Abstract

FIELD: metallurgy.SUBSTANCE: invention relates to a method for producing hot-rolled semi-finished products from deformable aluminium alloys with scandium. Ingots are produced using the method of semi-continuous casting, two-stage homogenizing annealing, mechanical processing of ingots, heating them to a temperature of 400-440 °C, rough and finish rolling. Finish rolling is carried out in one pass at a temperature of 250-300 °C at the ratio of the circumferential speeds of the rollers: V2 / V1 = 1.1-1.3, where V2 is the peripheral speed of the lower roll, rpm, V1 is the peripheral speed of the upper roll, rpm. Single reduction during finish rolling is 50-65%.EFFECT: semi-finished products that have lower hardness to ensure their high technological plasticity.1 cl, 3 dwg, 1 tbl
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Method of hot-rolling of semis from aluminium alloys with scandium

    RU2461642C1

  • Method of sheets production from heat-hardened aluminium alloys alloyed with scandium and zirconium

    RU2489217C1

  • Method of rolling wide strips and sheets

    SU839625A1

  • ECAE materials for high strength aluminum alloys

    US20200270730A1