DE502004010812D1 - METHOD FOR HEAT TREATMENT OF IRON MATERIALS - Google Patents
METHOD FOR HEAT TREATMENT OF IRON MATERIALSInfo
- Publication number
- DE502004010812D1 DE502004010812D1 DE502004010812T DE502004010812T DE502004010812D1 DE 502004010812 D1 DE502004010812 D1 DE 502004010812D1 DE 502004010812 T DE502004010812 T DE 502004010812T DE 502004010812 T DE502004010812 T DE 502004010812T DE 502004010812 D1 DE502004010812 D1 DE 502004010812D1
- Authority
- DE
- Germany
- Prior art keywords
- heating chamber
- endothermic gas
- heat
- heat treatment
- treating
- 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.)
- Active
Links
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
-
- 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
- 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
- C21D1/763—Adjusting the composition of the atmosphere using a catalyst
-
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/613—Gases; Liquefied or solidified normally gaseous material
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)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Details (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention relates to a method for heat-treating, in a protective atmosphere from endothermic gas mixtures, iron-containing materials, especially for annealing tubes, profiles, wires, rods and sheets that consist of metal or steel, in a heat-treating installation that comprises a cooling tunnel and a heating chamber. According to the invention, pure endothermic gas or endothermic gas partially rarefied with nitrogen and additionally pure nitrogen are supplied separately and in different areas of the installation, thereby reducing the time and costs required for the heat treatment process, increasing product quality and allowing for a safe process conduction. The flow profile generated throughout the entire furnace preferably in the heating chamber feed direction considerably reduces the deposition of solids in the cooling tunnel and the heating chamber end.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10347312A DE10347312B3 (en) | 2003-10-08 | 2003-10-08 | Process for the heat treatment of iron materials |
PCT/EP2004/010951 WO2005035799A1 (en) | 2003-10-08 | 2004-10-01 | Method for heat-treating iron-containing materials |
Publications (1)
Publication Number | Publication Date |
---|---|
DE502004010812D1 true DE502004010812D1 (en) | 2010-04-08 |
Family
ID=34306375
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10347312A Withdrawn - After Issue DE10347312B3 (en) | 2003-10-08 | 2003-10-08 | Process for the heat treatment of iron materials |
DE502004010812T Active DE502004010812D1 (en) | 2003-10-08 | 2004-10-01 | METHOD FOR HEAT TREATMENT OF IRON MATERIALS |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10347312A Withdrawn - After Issue DE10347312B3 (en) | 2003-10-08 | 2003-10-08 | Process for the heat treatment of iron materials |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1673483B8 (en) |
AT (1) | ATE458837T1 (en) |
DE (2) | DE10347312B3 (en) |
ES (1) | ES2341861T3 (en) |
PL (1) | PL1673483T3 (en) |
WO (1) | WO2005035799A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT502238B1 (en) * | 2005-05-12 | 2007-12-15 | Ebner Ind Ofenbau | PROCESS FOR BATCH HEAT TREATMENT OF REFRIGERATED PRODUCTS |
ES2528001T3 (en) | 2011-02-10 | 2015-02-03 | Schwartz, Eva | Oven |
CN103805840B (en) * | 2012-11-15 | 2016-12-21 | 宝山钢铁股份有限公司 | A kind of high formability galvanizing ultrahigh-strength steel plates and manufacture method thereof |
DE102013014815A1 (en) * | 2013-09-10 | 2015-03-12 | Ipsen International Gmbh | Control system for an endogas generator, and method for controlling at least one endogas generator |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3950192A (en) * | 1974-10-30 | 1976-04-13 | Monsanto Company | Continuous carburizing method |
US4288062A (en) * | 1979-08-09 | 1981-09-08 | Holcroft | Apparatus for control and monitoring of the carbon potential of an atmosphere in a heat-processing furnace |
GB2108156B (en) * | 1981-09-19 | 1986-01-15 | British Oxygen Co Ltd | Heat treatment of metals |
FR2527641A1 (en) * | 1982-05-28 | 1983-12-02 | Air Liquide | PROCESS FOR THERMALLY TREATING METALLIC PARTS THROUGH CARBURATION |
DE3630833A1 (en) * | 1986-09-10 | 1988-03-17 | Linde Ag | METHOD AND DEVICE FOR HEAT TREATING METAL WORKPIECES |
FR2623209B1 (en) * | 1987-11-17 | 1993-09-03 | Air Liquide | PROCESS OF HEAT TREATMENT UNDER NITROGEN AND HYDROCARBON GAS ATMOSPHERE |
DE3828134A1 (en) * | 1988-08-18 | 1990-02-22 | Linde Ag | METHOD FOR THE HEAT TREATMENT OF WORKPIECES |
FR2649123B1 (en) * | 1989-06-30 | 1991-09-13 | Air Liquide | METHOD FOR HEAT TREATING METALS |
DE19545764C2 (en) * | 1995-12-07 | 2000-02-17 | Linde Ag | Process for producing protective gas for a heat treatment furnace and heat treatment plant |
DE19738653A1 (en) * | 1997-09-04 | 1999-03-11 | Messer Griesheim Gmbh | Method and device for heat treating parts |
DE10023409A1 (en) * | 2000-05-12 | 2001-11-15 | Linde Gas Ag | Gas generator used for producing carbon monoxide- and hydrogen-containing treatment gas for heat treating metallic material comprises catalyst retort and device for heating partial regions of retort |
-
2003
- 2003-10-08 DE DE10347312A patent/DE10347312B3/en not_active Withdrawn - After Issue
-
2004
- 2004-10-01 PL PL04765727T patent/PL1673483T3/en unknown
- 2004-10-01 EP EP04765727A patent/EP1673483B8/en active Active
- 2004-10-01 DE DE502004010812T patent/DE502004010812D1/en active Active
- 2004-10-01 AT AT04765727T patent/ATE458837T1/en active
- 2004-10-01 ES ES04765727T patent/ES2341861T3/en active Active
- 2004-10-01 WO PCT/EP2004/010951 patent/WO2005035799A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2005035799A1 (en) | 2005-04-21 |
EP1673483B1 (en) | 2010-02-24 |
PL1673483T3 (en) | 2010-12-31 |
ES2341861T3 (en) | 2010-06-29 |
EP1673483B8 (en) | 2010-08-11 |
DE10347312B3 (en) | 2005-04-14 |
ATE458837T1 (en) | 2010-03-15 |
EP1673483A1 (en) | 2006-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8328 | Change in the person/name/address of the agent |
Representative=s name: KNH PATENTANWAELTE KAHLHOEFER NEUMANN ROESSLER HEI |
|
8364 | No opposition during term of opposition |