ES472283A1 - Process for the production of a protective gas - Google Patents
Process for the production of a protective gasInfo
- Publication number
- ES472283A1 ES472283A1 ES472283A ES472283A ES472283A1 ES 472283 A1 ES472283 A1 ES 472283A1 ES 472283 A ES472283 A ES 472283A ES 472283 A ES472283 A ES 472283A ES 472283 A1 ES472283 A1 ES 472283A1
- Authority
- ES
- Spain
- Prior art keywords
- protective gas
- liquid
- production
- hydrocarbons
- oxygen
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 2
- 230000001681 protective effect Effects 0.000 title abstract 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 4
- 239000007788 liquid Substances 0.000 abstract 3
- 229910052786 argon Inorganic materials 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 238000004090 dissolution Methods 0.000 abstract 1
- -1 ferrous metals Chemical class 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 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)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Gas Separation By Absorption (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
Process for obtaining a protective gas, for the thermal treatment of ferrous metals, in an oven, consisting of nitrogen, and/or argon, oxygen and/or air and hydrocarbons, characterized in that a mixture of liquid gas, by previous mixing and dissolution of the hydrocarbons and oxygen and/or air in liquid argon and/or liquid nitrogen is prepared and stored intermediately after which it is evaporated and conveyed to the furnace. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2737610A DE2737610C2 (en) | 1977-08-20 | 1977-08-20 | Process for the production of a protective gas for the heat treatment of ferrous metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES472283A1 true ES472283A1 (en) | 1979-02-16 |
Family
ID=6016891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES472283A Expired ES472283A1 (en) | 1977-08-20 | 1978-08-02 | Process for the production of a protective gas |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5443110A (en) |
| AT (1) | AT364884B (en) |
| BE (1) | BE869412A (en) |
| DE (1) | DE2737610C2 (en) |
| ES (1) | ES472283A1 (en) |
| FR (1) | FR2400560A1 (en) |
| GB (1) | GB1586348A (en) |
| IT (1) | IT1098016B (en) |
| NL (1) | NL7808414A (en) |
| ZA (1) | ZA784695B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2507898Y2 (en) * | 1989-11-22 | 1996-08-21 | 株式会社東洋精機製作所 | Temperature controller for constant temperature bath |
| JP7407495B2 (en) * | 2021-10-29 | 2024-01-04 | 関東冶金工業株式会社 | Heat treatment furnace and heat treatment method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2435026A1 (en) * | 1974-07-20 | 1976-02-05 | Messer Griesheim Gmbh | PROCESS FOR PRODUCING A PROTECTIVE GAS WITH DEFINED CARBON EFFECT |
-
1977
- 1977-08-20 DE DE2737610A patent/DE2737610C2/en not_active Expired
-
1978
- 1978-05-25 GB GB22439/78A patent/GB1586348A/en not_active Expired
- 1978-07-24 AT AT0537678A patent/AT364884B/en not_active IP Right Cessation
- 1978-07-31 BE BE189621A patent/BE869412A/en not_active IP Right Cessation
- 1978-08-01 FR FR7822694A patent/FR2400560A1/en active Granted
- 1978-08-02 ES ES472283A patent/ES472283A1/en not_active Expired
- 1978-08-08 IT IT26575/78A patent/IT1098016B/en active
- 1978-08-11 NL NL7808414A patent/NL7808414A/en not_active Application Discontinuation
- 1978-08-15 JP JP9944078A patent/JPS5443110A/en active Pending
- 1978-08-18 ZA ZA00784695A patent/ZA784695B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE869412A (en) | 1978-11-16 |
| DE2737610C2 (en) | 1983-10-27 |
| FR2400560A1 (en) | 1979-03-16 |
| GB1586348A (en) | 1981-03-18 |
| ZA784695B (en) | 1979-08-29 |
| FR2400560B3 (en) | 1981-03-06 |
| DE2737610A1 (en) | 1979-03-01 |
| JPS5443110A (en) | 1979-04-05 |
| IT7826575A0 (en) | 1978-08-08 |
| IT1098016B (en) | 1985-08-31 |
| AT364884B (en) | 1981-11-25 |
| ATA537678A (en) | 1981-04-15 |
| NL7808414A (en) | 1979-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19991201 |