SU1789064A3 - Method of producing chrome nitride - Google Patents
Method of producing chrome nitrideInfo
- Publication number
- SU1789064A3 SU1789064A3 SU4671258/02A SU4671258A SU1789064A3 SU 1789064 A3 SU1789064 A3 SU 1789064A3 SU 4671258/02 A SU4671258/02 A SU 4671258/02A SU 4671258 A SU4671258 A SU 4671258A SU 1789064 A3 SU1789064 A3 SU 1789064A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- nitrogen
- chrome
- mpa
- reactor
- helix
- Prior art date
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Powder Metallurgy (AREA)
Abstract
FIELD: metallurgy. SUBSTANCE: method comprises steps of pouring powder, containing (mass % ): chrome 97.0; silicium 0.2; aluminium 2.3; ferrum 0.44; carbon 0.02; sulfur 0.015; phosphorus 0.005; non-ferrous metal 0.02, and having fineness less, than 0.2 mm, into a crucible, placing the last to a reactor; approaching an electric helix to the powder, sealing the reactor and filling it by nitrogen till pressure 16 MPa; applying an electric current pulse to the helix with amplitude 5A and duration value 0.5 s. Maximum temperature of heating up, equal to 1500 C, corresponds to producing of stable chrome half - nitride CrN. After cooling the sample till 1190 C a process of forming CrN begins. Heat quantity of such reaction allows to maintain temperature 1190-800 C over 30 min, the reaction takes place in a special mode. The product, had been produced, is a briquette with porosity degree 45% and compression strength 20 MPa. The briquette contains 21.2 mass % of nitrogen. EFFECT: enhanced density and strength of the product with high content of nitrogen and lowered loss of chrome and nitrogen at alloying. 1 cl, 3 tbl
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4671258/02A SU1789064A3 (en) | 1989-04-13 | 1989-04-13 | Method of producing chrome nitride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4671258/02A SU1789064A3 (en) | 1989-04-13 | 1989-04-13 | Method of producing chrome nitride |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1789064A3 true SU1789064A3 (en) | 1994-02-28 |
Family
ID=60536687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4671258/02A SU1789064A3 (en) | 1989-04-13 | 1989-04-13 | Method of producing chrome nitride |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1789064A3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2798491C1 (en) * | 2022-10-07 | 2023-06-23 | Мансур Хузиахметович Зиатдинов | Method for producing a composite alloy based on chromium nitrides |
-
1989
- 1989-04-13 SU SU4671258/02A patent/SU1789064A3/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2798491C1 (en) * | 2022-10-07 | 2023-06-23 | Мансур Хузиахметович Зиатдинов | Method for producing a composite alloy based on chromium nitrides |
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