Title:
アルミニウム基合金から変形半製品の製造方法
Document Type and Number:
Japanese Patent JP7350805
Kind Code:
B2
Abstract:
The invention relates to the field of metallurgy and can be used for making deformed semi-finished products in the form of profiles of variously shaped cross-section. A method for making a deformed semi-finished product from an aluminium alloy is provided, comprising the following steps: a) preparing a melt comprising iron and at least one element selected from the group consisting of zirconium, silicon, magnesium, copper and scandium; b) producing a cast blank of infinite length by crystallising the melt at a cooling rate that provides for forming a cast structure characterised by a dendritic cell size of up to 60 µm; c) producing a deformed semi-finished product of final or intermediate cross section shape by hot rolling the blank at an initial temperature of up to 520°C with a degree of reduction of up to 60%, and performing at least one further step comprising pressing the blank at a temperature ranging from 300 to 500°C by passing the blank through a swage; quenching in water the deformed semi-finished product from the previous step at a temperature of no lower than 450°C. The structure of the deformed semi-finished product represents an aluminium matrix with at least one selected doping element and eutectic particles distributed therein and a crosssectional size of up to 3 µm. The method provides for an altogether high level of physical and mechanical properties, in particular, a high degree of relative elongation (of at least 10%) and temporary tensile strength, and a high level of conductivity achieved in one technological stage of manufacturing.
Inventors:
Man Viktor Kristjanovik
Kurohin Alexander Yurievich
Arabin Alexander Nikolaevich
Salnikov Alexander Vladimirovich
Kurohin Alexander Yurievich
Arabin Alexander Nikolaevich
Salnikov Alexander Vladimirovich
Application Number:
JP2021087519A
Publication Date:
September 26, 2023
Filing Date:
May 25, 2021
Export Citation:
Assignee:
オプシチェストボ エス オグラニチェンノイ オトヴェストヴェンノストユ “オベディネンナヤ カンパニア ルサール インゼネルノ－テクノロギケスキー チェントル”
International Classes:
B21B3/00; C22F1/04; B21C23/21; B22D27/04; C22C21/00
Domestic Patent References:
| JP2004162101A | ||||
| JP2010163677A | ||||
| JP2010067591A | ||||
| JP9507532A | ||||
| JP2016509133A |
Foreign References:
| WO2012011513A1 | ||||
| US5123973 | ||||
| US3613767 | ||||
| CN104694797A |
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mihiro
Tatsuhiko Abe
Shinya Mihiro
Tatsuhiko Abe