SU565777A1

SU565777A1 - Method of producing titanium workpieces

Info

Publication number: SU565777A1
Application number: SU7502093312A
Authority: SU
Inventors: Геннадий Григорьевич Христенко; Вадим Григорьевич Кононенко; Анатолий Сергеевич Морголенко; Сергей Григорьевич Кушнаренко; Василий Емельянович Семенов; Юрий Михайлович Букин; Алла Антоновна Коростелева; Оьга Серафимовна Ладухина; Рудольф Константинович Огнев; Юрий Георгиевич Олесов
Original assignee: Харьковский авиационный институт
Priority date: 1975-01-02
Filing date: 1975-01-02
Publication date: 1977-07-25

Description

1one

Изобретение относитс к оиласти порошковой металлургии, а в частности к способам получени компактного титана.The invention relates to the field of powder metallurgy, and in particular to methods for producing compact titanium.

Основным исходным сырьем дл получени титана вл етс титанова губка, из которой путем вакуумного переплава получают слитки итана,. используемые дл дальнейшей металлообработки.The main feedstock for titanium is a titanium sponge, from which itan is produced by vacuum remelting. used for further metalworking.

Известен способ получени титана, заключающийс в прессовании титановой губки с последующим перегшавом полученных расходуемых электродов в вакуумной дуговой электропечи в слитки, из которых путем вторичного переплава механооораОоткой или методами обработки давлением получаю заготовки треоуемых форм и размс- ров 1 , 2 .A known method for producing titanium, which consists in pressing a titanium sponge with subsequent overpressing of the consumable electrodes in a vacuum arc furnace into ingots, from which, by means of secondary melting by mechano- ora, or by means of pressure treatment, I obtain blanks of shapes and sizes 1, 2.

К недостаткам существующего способа следует отнести низкую прочность получаемых расходуемых электродов, обусловленную статическим характером приложенных нагрузок, что зачастую приводит к разрушению электродов при транспортировке, хрв нении и плавке, а также низкую производительность процесса И высокую себестоимс сThe disadvantages of the existing method include the low strength of the consumable consumable electrodes due to the static nature of the applied loads, which often leads to the destruction of the electrodes during transportation, storage and melting, as well as low process performance and high cost

изделий, обусловленные плительностью цесса плавки, применением сложног; дорогосто щего оборудовани дл вакуумн й плавки, наличием большого количества от ходов, образующихс как при плавке слитка , так и при его дальнейшей обработке.products, due to the durability of the process of melting, the use of complex; expensive equipment for vacuum smelting, the presence of a large number of strokes formed during the smelting of the ingot, and during its further processing.

Целью изобретени вл етс разработка способа получени заготовок из титана, поа вол ющего повысить качество заготовок, т. е, улучщить их прочностные характеристики , повысить производительность труда, уменьшить количество образующихс отходов и, как следствие, снизить себестоимость изделий.The aim of the invention is to develop a method for producing titanium blanks, which can improve the quality of the blanks, i.e., improve their strength characteristics, increase labor productivity, reduce the amount of generated waste and, consequently, reduce the cost of products.

Claims

This is achieved by the fact that in a crushed state, the titanium sponge is evenly displaced with alloying elements in the form of a paper sheet and pressed in cold grinding on pulse briquetting machines into briquettes with a density of not less than 4 g / cm, then heated to 420-450 C and stamped da high-speed percussion machines to produce blanks of the required shapes and sizes. The cold-pressing operation on pulsed MaujHwax branded machines allows compact blanks to be obtained, slightly different from the final dimensions of the blanks and suitable for heating without the risk of oxidizing the internal layers of the billet. The use of high-speed percussive percussion machines makes it possible to obtain, due to high specific pressures and coat-timeness of the process of aerotow with a density of the monolith, the shape and dimensions of which allow the lJ jljIVlDi P and (TO JV1 tr and JDI L, l tJi-H V Jl To a minimum, the subsequent processing of workpieces to obtain finished products is minimized. To reduce the strain deformation, the briquettes are heated to a temperature of 45 ° C, which is the upper limit of heating, as heating above this temperature leads to aKTHBHONjy oxidized. The internal layers of the briquette The proposed method was tested in laboratory conditions, which confirms its practical plating. The formula isotopes. A method of obtaining titanium sponge castings, including grinding the titanium sponge, compacting the briquettes, and so on. that, in order to improve the quality of the workpieces, the titanium powder obtained after grinding is uniformly mixed with the powder of the alloying elements, briquettes with a density of at least 4 g / cm are compressed, and the briquette heating is v .- L, e. These are carried out up to 420-45 ° C, after which they are stamped on high-speed machines. Sources of information taken into account during the examination: 1, Color casting, ed. I. Kolobneva, M., 1966, p. 177-190.

2. Sergeev V. about. and others. Metallurgists of titanium L, - 1964, p. 181.