RU2008123463A

RU2008123463A - METHOD FOR PRODUCING SPECIALLY THIN SHEETS FROM HIGH-STRENGTH TITANIUM ALLOYS

Info

Publication number: RU2008123463A
Application number: RU2008123463/02A
Authority: RU
Inventors: Александр Николаевич Козлов (RU); Александр Николаевич Козлов; Андрей Владимирович Зайцев (RU); Андрей Владимирович Зайцев; Виталий Анатольевич Михайлов (RU); Виталий Анатольевич Михайлов
Original assignee: Открытое Акционерное Общество "Корпорация ВСМПО-АВИСМА" (RU); Открытое Акционерное Общество "Корпорация Всмпо-Ависма"
Priority date: 2008-06-09
Filing date: 2008-06-09
Publication date: 2009-12-20
Also published as: RU2381297C1

Abstract

Способ изготовления особо тонких листов из высокопрочных титановых сплавов, включающий операции получения исходной заготовки, сборку пакета с использованием кейса и обмазывающих покрытий листов, горячую прокатку и термообработку пакета, разделение и отделку поверхности полученных листов, отличающийся тем, что исходную заготовку получают методом рулонной прокатки с относительной толщиной h3/hk=2,0-6,0, где h3 - толщина исходной заготовки перед пакетной прокаткой, мм, hk - конечная толщина готовых листов, мм, а прокатку пакета проводят при температуре ниже температуры рекристаллизации сплава заготовок, при этом кейс состоит, по крайней мере, из одной секции, внутри которой размещают не более трех листов, секции между собой разделены обкладками, аналогичными обкладкам кейса, которые выполнены из титановых сплавов с меньшим сопротивлением деформации, чем материал заготовок, и толщиной, обеспечивающей устойчивость формы сечения при прокатке.A method of manufacturing particularly thin sheets of high-strength titanium alloys, including the operation of obtaining the initial billet, assembling the package using a case and coating coatings of the sheets, hot rolling and heat treatment of the package, separation and surface treatment of the obtained sheets, characterized in that the initial billet is obtained by roll rolling with relative thickness h3 / hk = 2.0-6.0, where h3 is the thickness of the initial billet before batch rolling, mm, hk is the final thickness of the finished sheets, mm, and the package is rolled at a pace Ature is lower than the temperature of recrystallization of the alloy of the billets, while the case consists of at least one section, inside of which no more than three sheets are placed, the sections are separated by plates similar to those of the case, which are made of titanium alloys with lower deformation resistance than the material blanks, and a thickness that ensures the stability of the shape of the section during rolling.

Claims

A method of manufacturing particularly thin sheets of high-strength titanium alloys, including the operation of obtaining the initial billet, assembling the package using a case and coating coatings of the sheets, hot rolling and heat treatment of the package, separation and surface treatment of the obtained sheets, characterized in that the initial billet is obtained by roll rolling with relative thickness h ₃ / h _k = 2,0-6,0, ₃ where h - the thickness of the original blank before rolling the batch, mm, h _k - final thickness of the finished sheet in mm, and rolling was performed at a packet those the temperature is lower than the recrystallization temperature of the alloy of the billets, while the case consists of at least one section, inside of which no more than three sheets are placed, the sections are separated by plates similar to those of the case, which are made of titanium alloys with lower deformation resistance than the material blanks, and thickness, providing stability of the shape of the section during rolling.