SE9801260L - Direct-fired oven and ways to reheat steel materials - Google Patents

Direct-fired oven and ways to reheat steel materials

Info

Publication number
SE9801260L
SE9801260L SE9801260A SE9801260A SE9801260L SE 9801260 L SE9801260 L SE 9801260L SE 9801260 A SE9801260 A SE 9801260A SE 9801260 A SE9801260 A SE 9801260A SE 9801260 L SE9801260 L SE 9801260L
Authority
SE
Sweden
Prior art keywords
oven
direct
ways
steel material
steel materials
Prior art date
Application number
SE9801260A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE510931C2 (en
SE9801260D0 (en
Inventor
Roland Niemi
Original Assignee
Roland Niemi
Niemi Goeran
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 Roland Niemi, Niemi Goeran filed Critical Roland Niemi
Priority to SE9801260A priority Critical patent/SE9801260L/en
Publication of SE9801260D0 publication Critical patent/SE9801260D0/en
Priority to AU38572/99A priority patent/AU3857299A/en
Priority to PCT/SE1999/000557 priority patent/WO1999051786A1/en
Publication of SE510931C2 publication Critical patent/SE510931C2/en
Publication of SE9801260L publication Critical patent/SE9801260L/en

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
    • C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
    • 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
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1858—Doors
    • 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
    • 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
    • F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
    • F27B9/045—Furnaces with controlled atmosphere
    • F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
    • 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
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/068—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by radiant tubes, the tube being heated by a hot medium, e.g. hot gases
    • 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
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/201—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace walking beam furnace
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/18—Door frames; Doors, lids, removable covers
    • F27D1/1858—Doors
    • F27D2001/1875—Hanging doors and walls

Abstract

Protective gas for a separate end region of the oven used to equalise steel material temperature is pre-heated by passing it through the direct heating zones. DETAILED DESCRIPTION - A directly-heated reheating oven for steel material (20, 21) prior to hot-rolling contains an end region (14) separated from the direct heating zone (12, 13). Protective gas is transported through pipes (23) that run through the direct heating zone and into the end zone so that the gas is pre-heated before reaching the end zone. An INDEPENDENT CLAIM is also included for the steel material reheating method using this oven.
SE9801260A 1998-04-07 1998-04-07 Direct-fired oven and ways to reheat steel materials SE9801260L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9801260A SE9801260L (en) 1998-04-07 1998-04-07 Direct-fired oven and ways to reheat steel materials
AU38572/99A AU3857299A (en) 1998-04-07 1999-04-06 A direct-heated furnace and a method of reheating steel semis
PCT/SE1999/000557 WO1999051786A1 (en) 1998-04-07 1999-04-06 A direct-heated furnace and a method of reheating steel semis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9801260A SE9801260L (en) 1998-04-07 1998-04-07 Direct-fired oven and ways to reheat steel materials

Publications (3)

Publication Number Publication Date
SE9801260D0 SE9801260D0 (en) 1998-04-07
SE510931C2 SE510931C2 (en) 1999-07-12
SE9801260L true SE9801260L (en) 1999-07-12

Family

ID=20410921

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9801260A SE9801260L (en) 1998-04-07 1998-04-07 Direct-fired oven and ways to reheat steel materials

Country Status (3)

Country Link
AU (1) AU3857299A (en)
SE (1) SE9801260L (en)
WO (1) WO1999051786A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1808152A (en) * 1925-08-06 1931-06-02 Thaddeus F Baily Continuous annealing apparatus
FR1561203A (en) * 1967-12-20 1969-03-28
JPS57192215A (en) * 1981-05-21 1982-11-26 Ishikawajima Harima Heavy Ind Co Ltd Metal-heating oven
JPS6127485A (en) * 1984-07-17 1986-02-06 中外炉工業株式会社 Continuous type atmosphere heat treatment furnace
JPS6173819A (en) * 1984-09-17 1986-04-16 Ito Seitetsushiyo:Kk Soaking treatment device for cold billet and hot billet

Also Published As

Publication number Publication date
SE510931C2 (en) 1999-07-12
AU3857299A (en) 1999-10-25
WO1999051786A1 (en) 1999-10-14
SE9801260D0 (en) 1998-04-07

Similar Documents

Publication Publication Date Title
BR9610535A (en) Process and apparatus for heating polymeric materials processes for reconditioning pipes and for manufacturing oriented tubes of polymeric material, inner lining tube and composite tube
NO980409D0 (en) Process for the production of puzzolanes, synthetic blast furnace slag, belit or alite clinkers, and oxide slag iron alloys, and apparatus for carrying out this method
ATE286989T1 (en) METHOD FOR HEAT PROCESSING STAINLESS STEEL STRIP
KR910012641A (en) Dust recycling method in rotary kiln (KILN) and its apparatus
SE9600217L (en) Friction welded product for rock drilling as well as process for manufacturing the product
EP0178799A3 (en) Apparatus for cooling hot rolled steel rod
PT80755B (en) METHOD FOR HEATING A GLASS CONTAINING CHANNEL USING OXYCOMBUSTIBLE FLAMES
FR2813893B1 (en) METHOD FOR HEATING METALLURGICAL PRODUCTS
MY124176A (en) Method and apparatus for producing bent glass sheet
SE9801260L (en) Direct-fired oven and ways to reheat steel materials
DK0672743T3 (en) Process and apparatus for the thermal treatment of materials with proportions of combustible substances
EP0704658A3 (en) Process for thermal treatment of waste material, especially refuse, and rotary drum furnace for carrying out the process
WO2002047892A3 (en) Method and apparatus for heating a zone of an elongate tubular article
KR860002580A (en) Steel crack cracking device
CA2206136A1 (en) Multizone laundry iron and method for the thermal regulation of the hot part
DE59503782D1 (en) Roller grate
GB1393440A (en) Pre-heating apparatus particularly for pre-heating steel ingots or blooms
FIU950466U0 (en) Anordning Foer uppvaermning av stenmaterial
JPS56149513A (en) Combustion controlling method for heat equipment
FI980217A0 (en) Foerfarande och anordning Foer behandling av material med laog vaermekonductivitet
KR970706220A (en) Ethane Pyrolysis Method (ETHANE PYROLYSIS)
FR2779742B1 (en) IMPROVEMENTS RELATING TO HEATING OVENS OF STEEL PRODUCTS
SE9502188L (en) Apparatus and method for heat treatment of a flow of pumpable food product
Brusilovskij Improvement of hardening process of the cold-rolling mill rollers
FI951333A (en) Method and apparatus for reheating glass kits

Legal Events

Date Code Title Description
NUG Patent has lapsed