GB1259725A - Improved bell-type furnace - Google Patents

Improved bell-type furnace

Info

Publication number
GB1259725A
GB1259725A GB446/70A GB44670A GB1259725A GB 1259725 A GB1259725 A GB 1259725A GB 446/70 A GB446/70 A GB 446/70A GB 44670 A GB44670 A GB 44670A GB 1259725 A GB1259725 A GB 1259725A
Authority
GB
United Kingdom
Prior art keywords
troughs
chamber
gas
atmosphere gas
annular
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
Application number
GB446/70A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bethlehem Steel Corp
Original Assignee
Bethlehem Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bethlehem Steel Corp filed Critical Bethlehem Steel Corp
Publication of GB1259725A publication Critical patent/GB1259725A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F27B11/00—Bell-type furnaces
    • 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
    • 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
    • C21D9/673—Details, accessories, or equipment peculiar to bell-type furnaces
    • 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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/06—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases
    • C23C10/08—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases only one element being diffused
    • C23C10/10—Chromising
    • 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
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C23C10/30—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes using a layer of powder or paste on the surface
    • C23C10/32—Chromising

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

1,259,725. Heat treatment furnaces. BETHLEHEM STEEL CORP. 5 Jan., 1970 [13 Jan., 1969], No. 446/70. Heading F4B. A bell furnace 10 includes a base 11 and a removable inner cover 12 which define a chamber 13 in which an atmosphere gas is circulated by fan assembly 24. The atmosphere gas inlet and outlet pipes 31, 32 respectively pass into the sand or Woods metal filled sealing trough in which the cover 12 sits. The base 11 is provided with a porous refractory pedestal 16 covered by a gas tight sheath 17 including an annular bottom plate 44 which is welded to outer and inner annular side plates 45, 46 respectively, molten lead filled outer and inner annular sealing troughs 50, 51 respectively and annular top plate 47 the outer and inner peripheral flanges 48, 49 respectively of which sealingly depend into the lead filled troughs. The side plates are gastightly secured to the troughs either by similar depending flanges or by welding. A protective hydrogen atmosphere supplied and discharged through pipes 55, 56 is circulated within the chamber 60 defined by the gas-tight sheath 17, at a higher pressure than the atmosphere gas circulating within the chamber 13.
GB446/70A 1969-01-13 1970-01-05 Improved bell-type furnace Expired GB1259725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79057869A 1969-01-13 1969-01-13

Publications (1)

Publication Number Publication Date
GB1259725A true GB1259725A (en) 1972-01-12

Family

ID=25151129

Family Applications (2)

Application Number Title Priority Date Filing Date
GB446/70A Expired GB1259725A (en) 1969-01-13 1970-01-05 Improved bell-type furnace
GB19737/71A Expired GB1259726A (en) 1969-01-13 1970-01-05 Improved bell-type furnace

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB19737/71A Expired GB1259726A (en) 1969-01-13 1970-01-05 Improved bell-type furnace

Country Status (8)

Country Link
US (1) US3554511A (en)
JP (1) JPS5017425B1 (en)
BE (1) BE744269A (en)
CA (1) CA936685A (en)
DE (1) DE2001006A1 (en)
FR (1) FR2033234A1 (en)
GB (2) GB1259725A (en)
NL (1) NL7000379A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262153A (en) * 1991-11-12 1993-06-09 Apv Corp Ltd Insulated panels for heated or cooled enclosures

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693955A (en) * 1971-03-15 1972-09-26 Bethlehem Steel Corp Component annealing base
US3860224A (en) * 1973-10-19 1975-01-14 Eveleth Taconite Company Apparatus for use in pelletizing ore
US4867675A (en) * 1988-06-15 1989-09-19 Blackman Calvin C Method and apparatus for quickly purging atmosphere gas from bell furnace
US5006064A (en) * 1989-12-28 1991-04-09 Alloy Engineering Company Furnace seal
DE4327975A1 (en) * 1993-08-19 1995-02-23 Loi Ind Ofenanlagen Method and device for exchanging the atmosphere in a bell annealer
AT402508B (en) * 1995-02-24 1997-06-25 Ebner Peter H GLOW BASE FOR DOME GLOVES

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998236A (en) * 1956-07-16 1961-08-29 Cramer Hans Method of annealing in bell furnaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262153A (en) * 1991-11-12 1993-06-09 Apv Corp Ltd Insulated panels for heated or cooled enclosures

Also Published As

Publication number Publication date
GB1259726A (en) 1972-01-12
FR2033234A1 (en) 1970-12-04
US3554511A (en) 1971-01-12
NL7000379A (en) 1970-07-15
BE744269A (en) 1970-07-09
CA936685A (en) 1973-11-13
DE2001006A1 (en) 1970-07-23
JPS5017425B1 (en) 1975-06-20

Similar Documents

Publication Publication Date Title
ES469361A1 (en) Vessel for metal smelting furnace
US3205810A (en) Adjustable hood construction for metallurgical furnace
US3198503A (en) Furnace
GB1458220A (en) Apparatus for refuse disposal
GB1259725A (en) Improved bell-type furnace
GB1331565A (en) Steel making converter
GB1374514A (en) Heating or annealing furnaces
GB1208332A (en) Method of treating nodular cast iron
GB1354181A (en) Charging of furnaces
ES280558U (en) Shielding apparatus for a pouring stream of liquid material.
US2558088A (en) Bell furnace with internal fan
FR2562222B1 (en) INSTALLATION AND METHOD FOR CONTINUOUSLY LOADING A REACTOR IN SOLID MATERIAL AND HEATING THE SAME WITH THE GAS EMITTED BY THE REACTOR
ATE29044T1 (en) GAS FLUSH STONE FOR METALLURGICAL VESSELS.
US3623714A (en) Method of and apparatus for operating a furnace
GB1166391A (en) Plant comprising a Stationary Reaction Vessel for Converting Ferrous Charging Materials into Steel.
GB848192A (en) Improvements relating to apparatus for degasifying steel melts
GB1469473A (en) Apparatus for use in the continuous production of steel from iron ore pellets sinter or the like
US2482709A (en) Device for preventing cinder eruptions from blast furnaces
GB1347865A (en) Process and apparatus for cooling hot gas/solids suspensions
US2880986A (en) Salt bath furnaces
FR2436822A1 (en) PROCESS FOR REDUCING METAL OXIDES OPERATING WITH A SOLID REDUCER IN ROCK OVENS, WITH GAS CIRCULATION OF HORNS WITH PARTIAL OR TOTAL EQUICURENT RELATIVE TO THE FLOW OF THE LOAD, AND INSTALLATION FOR THE IMPLEMENTATION WORK OF THIS PROCESS
GB962901A (en) Tower-type regenerative gas or air heaters
SU382690A1 (en) STEEL MELTING UNIT OF O. D. ZORIN
GB1305914A (en) Process for the production of steel and an apparatus for carrying out the process
Jewell et al. Carbon in Sparrows Point Blast Furnace Hearths.(Retroactive Coverage)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees