DE3017978C2 - Verfahren zur vorübergehenden Stillegung von Durchstoßaufkohlungsanlagen - Google Patents
Verfahren zur vorübergehenden Stillegung von DurchstoßaufkohlungsanlagenInfo
- Publication number
- DE3017978C2 DE3017978C2 DE3017978A DE3017978A DE3017978C2 DE 3017978 C2 DE3017978 C2 DE 3017978C2 DE 3017978 A DE3017978 A DE 3017978A DE 3017978 A DE3017978 A DE 3017978A DE 3017978 C2 DE3017978 C2 DE 3017978C2
- Authority
- DE
- Germany
- Prior art keywords
- zone
- temperature
- carburizing
- push
- procedure
- 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
- 238000005255 carburizing Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 15
- 230000007723 transport mechanism Effects 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005261 decarburization Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052756 noble gas Inorganic materials 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003442 weekly effect 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
-
- 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)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3017978A DE3017978C2 (de) | 1980-05-10 | 1980-05-10 | Verfahren zur vorübergehenden Stillegung von Durchstoßaufkohlungsanlagen |
| FR8109191A FR2482277A1 (fr) | 1980-05-10 | 1981-05-08 | Procede d'arret provisoire d'installations de carburation continue |
| IT48424/81A IT1142435B (it) | 1980-05-10 | 1981-05-08 | Procedimento per la disattivazione transitoria di impianti di carboce mentazione a passaggio forzato |
| GB8114268A GB2075557B (en) | 1980-05-10 | 1981-05-11 | Method for the temporary shut down of a carburising installation |
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 |
|---|---|
| DE3017978A1 DE3017978A1 (de) | 1981-11-19 |
| DE3017978C2 true DE3017978C2 (de) | 1986-03-13 |
Family
ID=6102092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3017978A Expired DE3017978C2 (de) | 1980-05-10 | 1980-05-10 | Verfahren zur vorübergehenden Stillegung von Durchstoßaufkohlungsanlagen |
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) |
Family Cites Families (7)
| 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 |
| US3720546A (en) * | 1969-04-21 | 1973-03-13 | Nippon Steel Corp | Method for preventing destruction of strip metal in annealing furnace connected with direct heating furnace |
| US3827854A (en) * | 1973-10-26 | 1974-08-06 | W Gildersleeve | Automatic metal protecting apparatus and method |
| 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 |
| US4148946A (en) * | 1977-02-14 | 1979-04-10 | Armco Steel Corporation | Method for maintaining a non-oxidizing atmosphere at positive pressure within the metallic strip preparation furnace of a metallic coating line during line stops |
| 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
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 |
| FR2482277A1 (fr) | 1981-11-13 |
| FR2482277B1 (show.php) | 1983-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8320 | Willingness to grant licences declared (paragraph 23) | ||
| 8330 | Complete renunciation |