GB1374514A - Heating or annealing furnaces - Google Patents
Heating or annealing furnacesInfo
- Publication number
- GB1374514A GB1374514A GB1117372A GB1117372A GB1374514A GB 1374514 A GB1374514 A GB 1374514A GB 1117372 A GB1117372 A GB 1117372A GB 1117372 A GB1117372 A GB 1117372A GB 1374514 A GB1374514 A GB 1374514A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid metal
- trough
- march
- metal seal
- sealing
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/663—Bell-type furnaces
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)
- Furnace Details (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
1374514 Annealing furnaces BETHLEHEM STEEL CORP 9 March 1972 [15 March 1971] 11173/72 Heading F4B An annealing furnace comprises an outer cover 11, a removable inner cover 12, a base assembly 13, an outer peripheral seal trough 14 and a supporting structure 15. The base assembly includes a bottom plate 21, a refractory tray 22 and a top plate 23, the plates 21, 23 respectively having peripheral flanges 24, 25 extending into the trough 14. The seal trough 14 comprises three channels (37, 38, 39, Fig. 2) and a closed steam jacket 40. The inner channel (37) and outer channel (39) are reservoirs for liquid metal seal material, e.g. Wood's metal, thereby sealing the protective atmosphere in heating chamber 16 from the atmosphere as well as sealing the refractory tray from the said protective atmosphere. In a further embodiment an additional liquid metal seal is provided adjacent the central fan shaft opening 28. The top plate 23 has a downwardly extending inner flange which extends into a reservoir of the liquid metal seal material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12409071A | 1971-03-15 | 1971-03-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1374514A true GB1374514A (en) | 1974-11-20 |
Family
ID=22412712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1117372A Expired GB1374514A (en) | 1971-03-15 | 1972-03-09 | Heating or annealing furnaces |
Country Status (8)
Country | Link |
---|---|
US (1) | US3693955A (en) |
BE (1) | BE780620A (en) |
CA (1) | CA983708A (en) |
DE (1) | DE2211978A1 (en) |
FR (1) | FR2130301B1 (en) |
GB (1) | GB1374514A (en) |
IT (1) | IT952226B (en) |
NL (1) | NL7203362A (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5834532B2 (en) * | 1979-12-07 | 1983-07-27 | 新日本製鐵株式会社 | Finish annealing method for grain-oriented electrical steel sheets |
US4701127A (en) * | 1982-12-10 | 1987-10-20 | Borg-Warner Corporation | Controlled atmosphere capsule for fluxless brazing |
US5483548A (en) * | 1983-01-10 | 1996-01-09 | Coble; Gary L. | Insulated furnace door and wall panel system |
US5048802A (en) * | 1983-01-10 | 1991-09-17 | Coble Gary L | Diffuser system for annealing furnace with chain reinforced, nodular iron convector plates |
US4653171A (en) * | 1983-01-10 | 1987-03-31 | Coble Gary L | Refractory insulation mounting system and insulated structures |
US5308046A (en) * | 1983-01-10 | 1994-05-03 | Coble Gary L | Insulated furnace door system |
US4516758A (en) * | 1983-01-10 | 1985-05-14 | Coble Gary L | Diffuser system for annealing furnace |
DE4212396C2 (en) * | 1992-04-13 | 2001-03-08 | Loi Thermprocess Gmbh | Bell annealing furnace |
USD382339S (en) * | 1994-12-21 | 1997-08-12 | Coble Gary L | Arcuate cast refractory and steel segment of an annealing furnace base |
US5562879A (en) * | 1995-04-14 | 1996-10-08 | Coble; Gary L. | Cast refractory base segments and modular fiber seal system for single-stack annealing furnace |
US5578264A (en) * | 1994-12-21 | 1996-11-26 | Coble; Gary L. | Cast refractory base segments and modular fiber seal system for plural-stack annealing furnace |
US5756043A (en) * | 1994-12-21 | 1998-05-26 | Coble; Gary L. | Cast refractory base segments and modular fiber seal system for plural-stack annealing furnace |
US5575970A (en) * | 1995-04-14 | 1996-11-19 | Coble; Gary L. | Cast refractory base segments and modular fiber seal system for plural-stack annealing furnace |
JP2003188767A (en) * | 2001-12-13 | 2003-07-04 | Oki Electric Ind Co Ltd | Synchronism capture circuit |
WO2019057118A1 (en) * | 2017-09-20 | 2019-03-28 | 宝钢湛江钢铁有限公司 | Fixed type hot coil thermal insulation heat treatment device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2284014A (en) * | 1939-10-07 | 1942-05-26 | Westinghouse Electric & Mfg Co | Direct fired cylindrical bell type furnace |
US2283982A (en) * | 1939-10-07 | 1942-05-26 | Westinghouse Electric & Mfg Co | Bell type annealing furnace |
US2834590A (en) * | 1954-01-08 | 1958-05-13 | Western Electric Co | Base structure for high temperature furnace |
US3081074A (en) * | 1957-12-19 | 1963-03-12 | Lee Wilson | Apparatus for annealing coils of strip metal |
US3179394A (en) * | 1963-09-11 | 1965-04-20 | Wilson Eng Co Inc Lee | Solid seal for inner covers |
US3554511A (en) * | 1969-01-13 | 1971-01-12 | Bethlehem Steel Corp | E furnace |
-
1971
- 1971-03-15 US US124090A patent/US3693955A/en not_active Expired - Lifetime
-
1972
- 1972-03-09 GB GB1117372A patent/GB1374514A/en not_active Expired
- 1972-03-13 IT IT48943/72A patent/IT952226B/en active
- 1972-03-13 DE DE19722211978 patent/DE2211978A1/en active Pending
- 1972-03-13 BE BE780620A patent/BE780620A/en unknown
- 1972-03-14 NL NL7203362A patent/NL7203362A/xx unknown
- 1972-03-14 CA CA137,034A patent/CA983708A/en not_active Expired
- 1972-03-15 FR FR7209083A patent/FR2130301B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE780620A (en) | 1972-09-13 |
DE2211978A1 (en) | 1972-10-05 |
CA983708A (en) | 1976-02-17 |
NL7203362A (en) | 1972-09-19 |
US3693955A (en) | 1972-09-26 |
FR2130301A1 (en) | 1972-11-03 |
IT952226B (en) | 1973-07-20 |
FR2130301B1 (en) | 1977-01-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |