ZA896284B - Method for the heat-treatment of work pieces - Google Patents
Method for the heat-treatment of work piecesInfo
- Publication number
- ZA896284B ZA896284B ZA896284A ZA896284A ZA896284B ZA 896284 B ZA896284 B ZA 896284B ZA 896284 A ZA896284 A ZA 896284A ZA 896284 A ZA896284 A ZA 896284A ZA 896284 B ZA896284 B ZA 896284B
- Authority
- ZA
- South Africa
- Prior art keywords
- treatment
- furnace
- heat
- gas
- work pieces
- Prior art date
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
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Details (AREA)
- Heat Treatment Of Articles (AREA)
- Tunnel Furnaces (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention relates to a method of heat treating workpieces (metal, ceramic) in a continuous furnace and, at the same time, especially to the influencing of the flow of the treatment-gas atmosphere existing in the furnace. It is possible to influence the flow of the furnace gas by blowing in a proportion of the treatment gas required for the heat treatment at a pressure lying above the normal feed pressure of the treatment gas and directed into one or more furnace zones.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3828134A DE3828134A1 (en) | 1988-08-18 | 1988-08-18 | METHOD FOR THE HEAT TREATMENT OF WORKPIECES |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA896284B true ZA896284B (en) | 1990-04-25 |
Family
ID=6361156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA896284A ZA896284B (en) | 1988-08-18 | 1989-08-17 | Method for the heat-treatment of work pieces |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0355520B1 (en) |
AT (1) | ATE104360T1 (en) |
DE (2) | DE3828134A1 (en) |
ZA (1) | ZA896284B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4121277C2 (en) * | 1991-06-27 | 2000-08-03 | Ald Vacuum Techn Ag | Device and method for the automatic monitoring of operational safety and for controlling the process sequence in a vacuum heat treatment furnace |
EP1077267B1 (en) * | 1999-08-18 | 2004-07-07 | Patherm SA | Apparatus for the continuous heat treatment of metal workpieces separately or in batches |
DE10347312B3 (en) * | 2003-10-08 | 2005-04-14 | Air Liquide Deutschland Gmbh | Process for the heat treatment of iron materials |
EP1842931B1 (en) * | 2006-04-04 | 2014-02-19 | Linde AG | Method for heat treatment |
DE102006015739A1 (en) * | 2006-04-04 | 2007-10-11 | Linde Ag | Process for heat treatment |
US7955450B2 (en) | 2006-04-04 | 2011-06-07 | Linde Aktiengesellschaft | Method for heat treatment |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE617319C (en) * | 1931-05-02 | 1935-08-16 | Benno Schilde Maschb Akt Ges | Procedure and device for bright annealing |
US3415503A (en) * | 1967-08-18 | 1968-12-10 | Btu Eng Corp | Conditioned atmosphere furnace muffle |
DE2601658C3 (en) * | 1976-01-17 | 1978-11-30 | Fa. J.F. Mahler, 7300 Esslingen | Cooling device for a continuous furnace open on the inlet and outlet side for the heat treatment of workpieces |
DE2844843C2 (en) * | 1978-10-14 | 1985-09-12 | Ipsen Industries International Gmbh, 4190 Kleve | Industrial furnace for the heat treatment of metallic workpieces |
JPS57192215A (en) * | 1981-05-21 | 1982-11-26 | Ishikawajima Harima Heavy Ind Co Ltd | Metal-heating oven |
DE3277843D1 (en) * | 1981-09-19 | 1988-01-28 | British Oxygen Co Ltd | Heat treatment of metals |
DE3208574A1 (en) * | 1982-03-10 | 1983-09-22 | Schmetz Industrieofenbau und Vakuum-Hartlöttechnik KG, 5750 Menden | Vacuum shaft furnace |
DE3736501C1 (en) * | 1987-10-28 | 1988-06-09 | Degussa | Process for the heat treatment of metallic workpieces |
-
1988
- 1988-08-18 DE DE3828134A patent/DE3828134A1/en not_active Ceased
-
1989
- 1989-08-03 EP EP89114350A patent/EP0355520B1/en not_active Expired - Lifetime
- 1989-08-03 AT AT89114350T patent/ATE104360T1/en not_active IP Right Cessation
- 1989-08-03 DE DE58907441T patent/DE58907441D1/en not_active Expired - Fee Related
- 1989-08-17 ZA ZA896284A patent/ZA896284B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ATE104360T1 (en) | 1994-04-15 |
EP0355520A3 (en) | 1990-04-18 |
DE58907441D1 (en) | 1994-05-19 |
EP0355520A2 (en) | 1990-02-28 |
EP0355520B1 (en) | 1994-04-13 |
DE3828134A1 (en) | 1990-02-22 |
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