FR2482277A1 - Procede d'arret provisoire d'installations de carburation continue - Google Patents
Procede d'arret provisoire d'installations de carburation continue Download PDFInfo
- Publication number
- FR2482277A1 FR2482277A1 FR8109191A FR8109191A FR2482277A1 FR 2482277 A1 FR2482277 A1 FR 2482277A1 FR 8109191 A FR8109191 A FR 8109191A FR 8109191 A FR8109191 A FR 8109191A FR 2482277 A1 FR2482277 A1 FR 2482277A1
- Authority
- FR
- France
- Prior art keywords
- zone
- temperature
- gas atmosphere
- zones
- inert gas
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000010791 quenching Methods 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 16
- 239000011261 inert gas Substances 0.000 claims abstract description 15
- 238000010792 warming Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000000171 quenching effect Effects 0.000 claims abstract description 9
- 230000007723 transport mechanism Effects 0.000 claims abstract description 8
- 238000005255 carburizing Methods 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
- C23C8/22—Carburising of ferrous surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Tunnel Furnaces (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3017978A DE3017978C2 (de) | 1980-05-10 | 1980-05-10 | Verfahren zur vorübergehenden Stillegung von Durchstoßaufkohlungsanlagen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2482277A1 true FR2482277A1 (fr) | 1981-11-13 |
| FR2482277B1 FR2482277B1 (show.php) | 1983-01-14 |
Family
ID=6102092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8109191A Granted FR2482277A1 (fr) | 1980-05-10 | 1981-05-08 | Procede d'arret provisoire d'installations de carburation continue |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3017978C2 (show.php) |
| FR (1) | FR2482277A1 (show.php) |
| GB (1) | GB2075557B (show.php) |
| IT (1) | IT1142435B (show.php) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1489589A (fr) * | 1966-08-17 | 1967-07-21 | Electric Furnace Co | Four à recuire avec atmosphère de purge de secours |
| GB1300322A (en) * | 1969-04-21 | 1972-12-20 | Nippon Steel Corp | Method for preventing destruction of strip metal in an annealing furnace including a direct heating furnace section |
| FR2249170A1 (show.php) * | 1973-10-26 | 1975-05-23 | Selas Corp Of America | |
| FR2380352A1 (fr) * | 1977-02-14 | 1978-09-08 | Armco Steel Corp | Appareil et procede pour revetir une bande de metal a base de fer d'un metal de revetement en fusion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4035203A (en) * | 1973-12-21 | 1977-07-12 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for the heat-treatment of steel and for the control of said treatment |
| US4049473A (en) * | 1976-03-11 | 1977-09-20 | Airco, Inc. | Methods for carburizing steel parts |
| US4175986A (en) * | 1978-10-19 | 1979-11-27 | Trw Inc. | Inert carrier gas heat treating control process |
-
1980
- 1980-05-10 DE DE3017978A patent/DE3017978C2/de not_active Expired
-
1981
- 1981-05-08 IT IT48424/81A patent/IT1142435B/it active
- 1981-05-08 FR FR8109191A patent/FR2482277A1/fr active Granted
- 1981-05-11 GB GB8114268A patent/GB2075557B/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1489589A (fr) * | 1966-08-17 | 1967-07-21 | Electric Furnace Co | Four à recuire avec atmosphère de purge de secours |
| GB1300322A (en) * | 1969-04-21 | 1972-12-20 | Nippon Steel Corp | Method for preventing destruction of strip metal in an annealing furnace including a direct heating furnace section |
| FR2249170A1 (show.php) * | 1973-10-26 | 1975-05-23 | Selas Corp Of America | |
| FR2380352A1 (fr) * | 1977-02-14 | 1978-09-08 | Armco Steel Corp | Appareil et procede pour revetir une bande de metal a base de fer d'un metal de revetement en fusion |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/64 * |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8148424A0 (it) | 1981-05-08 |
| GB2075557B (en) | 1983-09-21 |
| GB2075557A (en) | 1981-11-18 |
| IT1142435B (it) | 1986-10-08 |
| DE3017978A1 (de) | 1981-11-19 |
| FR2482277B1 (show.php) | 1983-01-14 |
| DE3017978C2 (de) | 1986-03-13 |
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