Title:
チタン合金から棒材を製造する方法
Document Type and Number:
Japanese Patent JP6864955
Kind Code:
B2
Abstract:
The invention relates to the pressure processing of metals, and specifically to methods for preparing rods and workpieces from titanium alloys, with applications as a structural material in nuclear reactor cores, in the chemical and petrochemical industries, and in medicine. The invention solves the problem of producing rods from high-quality titanium alloys while simultaneously ensuring the high efficiency of the process. In order to achieve same, a method for preparing rods or workpieces from titanium alloys includes the hot forging of an initial workpiece and subsequent hot deformation, the hot forging of an ingot is carried out following heating to a temperature within the range (Temperature of polymorphic transformation (Tpt)+20)°C to (Tpt+150)°C with shear deformations primarily in the longitudinal direction and a reduction ratio of k = (1.2-2.5), and then performing hot rolling forging, without cooling, within a temperature range of (Tpt+20)°C to (Tpt+150)°C, changing the direction of shear deformations to being primarily transverse and with a reduction ratio of up to 7.0, and conducting subsequent hot deformation by heating deformed workpieces to within a temperature range of (Tpt-70) to (Tpt-20)°C.
Inventors:
Volousin Andrei Vladimir Kovich
Moskarev Alexander Evgenyevich
Negodin Dmitry Alexevich
Nikulin Dmitry Valerywicz
Samoirov Yuri Pantelevic
Moskarev Alexander Evgenyevich
Negodin Dmitry Alexevich
Nikulin Dmitry Valerywicz
Samoirov Yuri Pantelevic
Application Number:
JP2018533774A
Publication Date:
April 28, 2021
Filing Date:
December 22, 2015
Export Citation:
Assignee:
Stock Company "Chepetsky Mechanical Plant"
Joint Stock Company "Science and Innovation"
Joint Stock Company "Science and Innovation"
International Classes:
C22F1/18; C22C14/00
Domestic Patent References:
| JP2007084865A | ||||
| JP2015148016A | ||||
| JP5148599A |
Foreign References:
| US20130118653 | ||||
| US20090158887 | ||||
| US20120234066 | ||||
| WO2001092589A1 | ||||
| US20090074606 |
Other References:
ロシア連邦特許第2178014号明細書
Attorney, Agent or Firm:
Patent business corporation Nakajima intellectual property integrated office