GB974758A - Batch type furnaces, using a protective gaseous medium for scale-free heat treatmentof metal objects - Google Patents
Batch type furnaces, using a protective gaseous medium for scale-free heat treatmentof metal objectsInfo
- Publication number
- GB974758A GB974758A GB26444/61A GB2644461A GB974758A GB 974758 A GB974758 A GB 974758A GB 26444/61 A GB26444/61 A GB 26444/61A GB 2644461 A GB2644461 A GB 2644461A GB 974758 A GB974758 A GB 974758A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ducts
- burners
- furnace
- protective gas
- chamber
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
Abstract
974,758. Heat treatment furnaces. ZAVODY V. I. LENINA PLZEN NARODNI PODNIK. July 21, 1961 [Aug. 1, 1960], No. 26444/61. Heading F4B. A batch furnace contains inlet ports for admitting a protective gas into a treatment chamber having in its side walls parallel channels which are open towards the interior of the chamber and run from burners at the bottom of the chamber to outlet ports at the top. The combustion products from the burners are restrained to pass up the channels by the presence of the protective gas in the middle of the treatment chamber. As shown in Figs. 1, 2, the side walls 2, containing ceramic grooves 3, of parabolic cross-section, are shaped to form an arch. Combustion products pass from burners 6 via grooves 3 and outlet ports 15 into longitudinal ducts 8 and thence to a recuperator 24. Secondary combustion is caused in duct 8 by the injection of air through sloping ducts (not shown), and the heated air from the recuperator passes back to the burners 6. Protective gas is delivered into the furnace at the top via a pipe 12, a U-shaped preheating duct 10 and inlet ports 13 and at the bottom via pipes 20, longitudinal ducts 14 and vertical ducts 16 leading to inlets 17 in the furnace floor. The floor and one end wall of the furnace may be heated by combustion products from burners not shown, which pass through 'ducts 25 and up ducts 27. Fig. 6 shows a furnace with a brick floor 28 which is not heated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS483560 | 1960-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB974758A true GB974758A (en) | 1964-11-11 |
Family
ID=5391988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26444/61A Expired GB974758A (en) | 1960-08-01 | 1961-07-21 | Batch type furnaces, using a protective gaseous medium for scale-free heat treatmentof metal objects |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3284074A (en) |
| BE (1) | BE606609A (en) |
| GB (1) | GB974758A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4531910A (en) * | 1978-05-01 | 1985-07-30 | Geil Paul H | Down draft kiln |
| US4891008A (en) * | 1986-05-21 | 1990-01-02 | Columbia Gas Service System Corporation | High temperature convection furnace |
| US4830610A (en) * | 1986-05-21 | 1989-05-16 | Columbia Gas Service System Corporation | High temperature convection furnace |
| US5225144A (en) * | 1990-07-03 | 1993-07-06 | Tokyo Heat Treating Company | Gas-carburizing process and apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190616641A (en) * | 1906-07-24 | 1907-05-02 | William Pike Gibbons | Improvements in Ovens or Kilns for Annealing Iron Castings, for Burning Bricks and Potterywaer and for other similar uses. |
| US975077A (en) * | 1910-01-10 | 1910-11-08 | New Departure Mfg Co | Carbonizing apparatus. |
| DE360537C (en) * | 1921-06-28 | 1922-10-03 | Rudolf H Katz | Muffle or plate furnace with gas or oil firing |
| US2011339A (en) * | 1932-11-10 | 1935-08-13 | Sylvia Remsen Hillhouse | Method of screening combustion from materials heated thereby |
| US2311350A (en) * | 1939-12-26 | 1943-02-16 | Richardson Edward Adams | Method and apparatus for controlling combustion |
| GB767582A (en) * | 1952-03-21 | 1957-02-06 | Fuel Furnaces Ltd | Improvements in or relating to furnaces for the heat treatment of metals |
-
1961
- 1961-07-21 GB GB26444/61A patent/GB974758A/en not_active Expired
- 1961-07-27 BE BE606609A patent/BE606609A/en unknown
- 1961-07-31 US US128101A patent/US3284074A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE606609A (en) | 1961-11-16 |
| US3284074A (en) | 1966-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB974758A (en) | Batch type furnaces, using a protective gaseous medium for scale-free heat treatmentof metal objects | |
| GB986848A (en) | Process for operating shaft furnaces and shaft furnace arrangements for carrying out the said process | |
| GB1210369A (en) | Glass annealing lehrs | |
| GB797233A (en) | Tunnel furnace for heat treating objects | |
| GB870649A (en) | Improvements in or relating to furnaces or kilns for calcining solid material | |
| GB1127948A (en) | Improvements in furnaces and other heating chambers heated by fluid fuel burners | |
| GB951596A (en) | A gas heating apparatus | |
| GB1022142A (en) | Improvements in furnaces | |
| GB628726A (en) | Improvements relating to furnaces or kilns of the tunnel type | |
| GB586063A (en) | Improvements in or relating to kilns for burning blue or other bricks | |
| GB869733A (en) | Improvements in preheating section for tunnel kiln and method | |
| GB489902A (en) | Improvements in and relating to tunnel furnaces | |
| GB570516A (en) | Improvements in or relating to gas-fired reheating furnaces | |
| GB1064589A (en) | Improvements in or relating to continuous furnaces for the heat treatment or reheating of metal | |
| GB585075A (en) | Improvements in or relating to kilns | |
| GB932058A (en) | Improvements in or relating to shaft kilns for burning limestone | |
| GB1065594A (en) | Fire combustion apparatus equipment for liquid and gaseous fuels | |
| GB570032A (en) | Improvements in or relating to gas-fired reheating furnaces | |
| GB667568A (en) | Improvements in soaking pit furnaces fired by gas or liquid fuel | |
| GB740409A (en) | A continuous semi-gas furnace | |
| GB142710A (en) | Improvements relating to furnaces | |
| GB569180A (en) | Improvements in ovens through which articles to be heat-treated are continuously passed | |
| GB125515A (en) | Improvements in or relating to Furnaces. | |
| GB602385A (en) | New or improved kiln for drying or calcining | |
| GB595380A (en) | Improvements in or relating to furnace construction |