SU195635A1 - METAL-CERAMIC ALLOYS FOR SEALING GAS TURBINES - Google Patents

METAL-CERAMIC ALLOYS FOR SEALING GAS TURBINES

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Publication number
SU195635A1
SU195635A1 SU915233A SU915233A SU195635A1 SU 195635 A1 SU195635 A1 SU 195635A1 SU 915233 A SU915233 A SU 915233A SU 915233 A SU915233 A SU 915233A SU 195635 A1 SU195635 A1 SU 195635A1
Authority
SU
USSR - Soviet Union
Prior art keywords
metal
gas turbines
sealing gas
ceramic alloys
ceramic
Prior art date
Application number
SU915233A
Other languages
Russian (ru)
Original Assignee
Н. Семенов, Г. Л. Дубров , Н. А. Казанцева Институт проблем материаловедени УССР
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Н. Семенов, Г. Л. Дубров , Н. А. Казанцева Институт проблем материаловедени УССР filed Critical Н. Семенов, Г. Л. Дубров , Н. А. Казанцева Институт проблем материаловедени УССР
Priority to SU915233A priority Critical patent/SU195635A1/en
Application granted granted Critical
Publication of SU195635A1 publication Critical patent/SU195635A1/en

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  • Sealing Material Composition (AREA)
  • Powder Metallurgy (AREA)

Description

Известны металлокерамические сплавы, состо щие из никел  и нитрида бора. Однако они при высокой температуре ухудшают свойства прирабатываемости уплотнительного материала .Metal-ceramic alloys consisting of nickel and boron nitride are known. However, at high temperatures, they impair the running properties of the sealing material.

Предлагаемый сплав отличаетс  тем, что дл  повышени  жаростойкости в его состав введен кремний в пределах 2-3%, а остальные компоиенты вз ты в следуюшем процеитном соотношении: никел  90-93 и нитрида бора 4,5-7, дополнительно термообработанного при температуре 2100-2200° С.The proposed alloy is distinguished by the fact that in order to increase the heat resistance, silicon within the range of 2–3% is introduced into its composition, and the remaining components are taken in the following ratio: nickel 90–93 and boron nitride 4.5–7, additionally heat treated at 2100- 2200 ° C

Термообработанный порошок нитрида бора смешивают с порошками электролитического никел  и кремни , затем их подвергают прессованию , спеканию, допрессовке и повторному спеканию при температуре 1100°С в течение 2 час.The heat treated boron nitride powder is mixed with electrolytic nickel powders and silicon, then they are subjected to pressing, sintering, repressing and re-sintering at a temperature of 1100 ° C for 2 hours.

Проведенные оныты показали, что при дополнительной термообработке нитрида бора суш,ественно новысилась жаростойкость нового металлокерамического уплотнительного материала , примен емого в газовых турбинах.The results showed that with additional heat treatment of boron nitride, the heat resistance of a new cermet sealing material used in gas turbines increased significantly.

Предмет изобретени Subject invention

Металлокерамический сплав дл  уплотнени  газовых турбин, содержаший никель и нитрид бора, отличающийс  тем, что, с целью повышени  жаростойкости, в его состав введен кремний в пределах 2-3%, а остальные компоненты вз ты в следуюшем процентном соотношении; никел  90-93 и нитрида бора 4,5-7, дополнительно термообработанного при температуре 2100-2200°С.Metal-ceramic alloy for compaction of gas turbines, containing nickel and boron nitride, characterized in that, in order to improve the heat resistance, silicon is introduced in the range of 2-3%, and the other components are taken in the following percentage ratio; Nickel 90-93 and boron nitride 4.5-7, additionally heat-treated at a temperature of 2100-2200 ° C.

SU915233A 1964-08-05 1964-08-05 METAL-CERAMIC ALLOYS FOR SEALING GAS TURBINES SU195635A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU915233A SU195635A1 (en) 1964-08-05 1964-08-05 METAL-CERAMIC ALLOYS FOR SEALING GAS TURBINES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU915233A SU195635A1 (en) 1964-08-05 1964-08-05 METAL-CERAMIC ALLOYS FOR SEALING GAS TURBINES

Publications (1)

Publication Number Publication Date
SU195635A1 true SU195635A1 (en) 1967-05-04

Family

ID=39967518

Family Applications (1)

Application Number Title Priority Date Filing Date
SU915233A SU195635A1 (en) 1964-08-05 1964-08-05 METAL-CERAMIC ALLOYS FOR SEALING GAS TURBINES

Country Status (1)

Country Link
SU (1) SU195635A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2454473C1 (en) * 2010-12-03 2012-06-27 Общество с ограниченной ответственностью "Научно-производственное предприятие Вакууммаш" Worn-out seal of turbomachine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2454473C1 (en) * 2010-12-03 2012-06-27 Общество с ограниченной ответственностью "Научно-производственное предприятие Вакууммаш" Worn-out seal of turbomachine

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