EP3948130C0 - Rotary furnace for heat-treating metal workpieces, and corresponding heat treatment method - Google Patents

Rotary furnace for heat-treating metal workpieces, and corresponding heat treatment method

Info

Publication number: EP3948130C0
Authority: EP; European Patent Office
Prior art keywords: treatment method; rotary furnace; heat; metal workpieces; treating metal
Prior art date: 2019-04-04
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.): Active

Application number

EP20715015.2A

Other languages

German (de)

French (fr)

Other versions

EP3948130A1 (en

EP3948130B1 (en

Inventor

Thomas Berrenberg

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.)

Schwartz GmbH

Original Assignee

Schwartz GmbH

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.)

2019-04-04

Filing date

2020-03-25

Publication date

2024-05-29

2020-03-25 Application filed by Schwartz GmbH filed Critical Schwartz GmbH

2022-02-09 Publication of EP3948130A1 publication Critical patent/EP3948130A1/en

2024-05-29 Application granted granted Critical

2024-05-29 Publication of EP3948130C0 publication Critical patent/EP3948130C0/en

2024-05-29 Publication of EP3948130B1 publication Critical patent/EP3948130B1/en

Status Active legal-status Critical Current

2040-03-25 Anticipated expiration legal-status Critical

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
- 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
- F27B9/16—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 circular or arcuate path
- 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
- C21D1/34—Methods of heating
- 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
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
- 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
- C21D9/0037—Rotary furnaces with vertical axis; Furnaces with rotating floor
- 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
- F27D7/04—Circulating atmospheres by mechanical means

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
General Engineering & Computer Science (AREA)
Furnace Details (AREA)
Tunnel Furnaces (AREA)

EP20715015.2A 2019-04-04 2020-03-25 Rotary furnace for heat-treating metal workpieces, and corresponding heat treatment method Active EP3948130B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE102019108873.9A DE102019108873A1 (en)	2019-04-04	2019-04-04	Rotary hearth furnace for the heat treatment of metallic workpieces and the corresponding process for heat treatment
PCT/EP2020/058377 WO2020200963A1 (en)	2019-04-04	2020-03-25	Rotary furnace for heat-treating metal workpieces, and corresponding heat treatment method

Publications (3)

Publication Number	Publication Date
EP3948130A1 EP3948130A1 (en)	2022-02-09
EP3948130C0 true EP3948130C0 (en)	2024-05-29
EP3948130B1 EP3948130B1 (en)	2024-05-29

Family

ID=70050103

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20715015.2A Active EP3948130B1 (en)	2019-04-04	2020-03-25	Rotary furnace for heat-treating metal workpieces, and corresponding heat treatment method

Country Status (3)

Country	Link
EP (1)	EP3948130B1 (en)
DE (1)	DE102019108873A1 (en)
WO (1)	WO2020200963A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN113817908B (en) *	2021-08-13	2023-06-30	苏州新长光热能科技有限公司	Annealing furnace

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3063878A (en) *	1958-05-07	1962-11-13	Wilson Lee	Method of and apparatus for annealing
DE3231225A1 (en) *	1982-08-21	1984-03-01	Verwaltungsgesellschaft Heinrich Neitz GmbH & Co KG, 4930 Detmold	Heat treatment oven and performance of thermal processes for workpieces of ferrous materials and non-ferrous metals
JPS60262924A (en) *	1984-06-08	1985-12-26	Rozai Kogyo Kk	Rotary-hearth coil heating furnace
WO2006021994A1 (en) *	2004-08-25	2006-03-02	Nippon Furnace Kogyo Kaisha, Ltd.	Hot air circulation furnance
US20060103059A1 (en) *	2004-10-29	2006-05-18	Crafton Scott P	High pressure heat treatment system
JP4374377B2 (en) *	2006-11-30	2009-12-02	ファーネス重工株式会社	Hot air circulation furnace
JP5384226B2 (en) *	2009-06-29	2014-01-08	三建産業株式会社	Hot air heating device
CN103348021A (en) *	2012-02-08	2013-10-09	株式会社正英制作所	Heat treatment furnace
DE102015203376A1 (en) *	2014-02-26	2015-08-27	Sms Siemag Ag	Method and plant for the thermal treatment of elongated, flat metallic material, in particular aluminum ingots, in a ring hearth furnace

2019
- 2019-04-04 DE DE102019108873.9A patent/DE102019108873A1/en active Pending
2020
- 2020-03-25 EP EP20715015.2A patent/EP3948130B1/en active Active
- 2020-03-25 WO PCT/EP2020/058377 patent/WO2020200963A1/en unknown

Also Published As

Publication number	Publication date
EP3948130A1 (en)	2022-02-09
EP3948130B1 (en)	2024-05-29
WO2020200963A1 (en)	2020-10-08
DE102019108873A1 (en)	2020-10-08

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