SU604503A3 - Способ термической обработки изделий - Google Patents
Способ термической обработки изделийInfo
- Publication number
- SU604503A3 SU604503A3 SU762331253A SU2331253A SU604503A3 SU 604503 A3 SU604503 A3 SU 604503A3 SU 762331253 A SU762331253 A SU 762331253A SU 2331253 A SU2331253 A SU 2331253A SU 604503 A3 SU604503 A3 SU 604503A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- furnace
- products
- methane
- amount
- ammonia
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000010438 heat treatment Methods 0.000 title claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 44
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 30
- 229910021529 ammonia Inorganic materials 0.000 claims description 15
- 238000010494 dissociation reaction Methods 0.000 claims description 14
- 230000005593 dissociations Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 238000005261 decarburization Methods 0.000 claims description 4
- 239000001294 propane Substances 0.000 claims description 3
- 238000004320 controlled atmosphere Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000007669 thermal treatment Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Furnace Details (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752510460 DE2510460A1 (de) | 1975-03-11 | 1975-03-11 | Verfahren zur waermebehandlung von werkstuecken aus stahl ohne die bildung von randoxyden der legierungselemente |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU604503A3 true SU604503A3 (ru) | 1978-04-25 |
Family
ID=5940976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762331253A SU604503A3 (ru) | 1975-03-11 | 1976-03-11 | Способ термической обработки изделий |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS51114310A (cg-RX-API-DMAC7.html) |
| CH (1) | CH599977A5 (cg-RX-API-DMAC7.html) |
| DD (1) | DD123352A5 (cg-RX-API-DMAC7.html) |
| DE (1) | DE2510460A1 (cg-RX-API-DMAC7.html) |
| ES (1) | ES445866A1 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2303860A1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1507954A (cg-RX-API-DMAC7.html) |
| SE (1) | SE7602587L (cg-RX-API-DMAC7.html) |
| SU (1) | SU604503A3 (cg-RX-API-DMAC7.html) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4208848C2 (de) * | 1991-12-04 | 2001-08-30 | Ald Vacuum Techn Ag | Verfahren zur thermochemischen Nachbehandlung von Stählen und Metallen |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2299138A (en) * | 1941-10-04 | 1942-10-20 | Westinghouse Electric & Mfg Co | Heat treating of steel |
| FR930945A (fr) * | 1946-07-22 | 1948-02-09 | Procédé de cémentation de l'acier ou autres métaux et installation pour la mise en ceuvre de ce procédé ou procédés similaires |
-
1975
- 1975-03-11 DE DE19752510460 patent/DE2510460A1/de active Pending
-
1976
- 1976-02-25 DD DD191479A patent/DD123352A5/xx unknown
- 1976-02-27 SE SE7602587A patent/SE7602587L/xx unknown
- 1976-03-02 GB GB8234/76A patent/GB1507954A/en not_active Expired
- 1976-03-08 ES ES445866A patent/ES445866A1/es not_active Expired
- 1976-03-08 CH CH285576A patent/CH599977A5/xx not_active IP Right Cessation
- 1976-03-10 FR FR7606856A patent/FR2303860A1/fr not_active Withdrawn
- 1976-03-11 JP JP51025660A patent/JPS51114310A/ja active Pending
- 1976-03-11 SU SU762331253A patent/SU604503A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| SE7602587L (sv) | 1976-09-13 |
| JPS51114310A (en) | 1976-10-08 |
| DE2510460A1 (de) | 1976-09-23 |
| DD123352A5 (cg-RX-API-DMAC7.html) | 1976-12-12 |
| CH599977A5 (cg-RX-API-DMAC7.html) | 1978-06-15 |
| FR2303860A1 (fr) | 1976-10-08 |
| ES445866A1 (es) | 1977-06-01 |
| GB1507954A (en) | 1978-04-19 |
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