BR9902836A - Processo para o tratamento termomecânico de aço para elementos de mola - Google Patents

Processo para o tratamento termomecânico de aço para elementos de mola

Info

Publication number
BR9902836A
BR9902836A BR9902836-0A BR9902836A BR9902836A BR 9902836 A BR9902836 A BR 9902836A BR 9902836 A BR9902836 A BR 9902836A BR 9902836 A BR9902836 A BR 9902836A
Authority
BR
Brazil
Prior art keywords
steel
spring elements
temperature
thermomechanical treatment
transformation
Prior art date
Application number
BR9902836-0A
Other languages
English (en)
Inventor
Christian Bilgen
Eberhard Kast
Andreas Kleemann
Hans-Guenther Krull
Thomas Muhr
Horts Weiss
Original Assignee
Muhr & Bender
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
Priority claimed from DE19839383A external-priority patent/DE19839383C2/de
Application filed by Muhr & Bender filed Critical Muhr & Bender
Publication of BR9902836A publication Critical patent/BR9902836A/pt

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
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • 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
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D1/42—Induction heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
    • Y10S148/908—Spring

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 Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Patente de Invenção:<B>"PROCESSO PARA O TRATAMENTO TERMOMECâNICO DE AçO PARA ELEMENTOS DE MOLA"<D>. A invenção refere-se a um processo para o tratamento termomecânico de aço para elementos de mola solicitados por torção, sendo que a matéria-prima é aquecida e austenisada com a velocidade de aquecimento de pelo menos 50K/s e, a seguir, é transformada em pelo menos uma etapa de transformação e sendo que o produto de transformação, depois da transformação, é resfriado bruscamente para martensita, até abaixo da temperatura de martensita, e, a seguir, é recozido. Para chegar a um aperfeiçoamento das propriedades de resistência ou tenacidade do aço para molas, mais precisamente, na direção da solicitação dos elementos de mola solicitados por torção, de modo que resulta um considerável aumento da resistência à oscilação, de acordo com a invenção está previsto que a matéria-prima seja aquecida para uma temperatura acima da temperatura de recristalização e, a seguir, transformada a uma temperatura tal que resulte uma recristalização da austenita dinâmica e/ou estátca, e que a austenita do produto de transformação, recristalizada desse modo, seja resfriada bruscamente.
BR9902836-0A 1998-07-20 1999-07-20 Processo para o tratamento termomecânico de aço para elementos de mola BR9902836A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19832526 1998-07-20
DE19839383A DE19839383C2 (de) 1998-07-20 1998-08-31 Verfahren zur thermomechanischen Behandlung von Stahl für torsionsbeanspruchte Federelemente

Publications (1)

Publication Number Publication Date
BR9902836A true BR9902836A (pt) 2000-03-08

Family

ID=26047555

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9902836-0A BR9902836A (pt) 1998-07-20 1999-07-20 Processo para o tratamento termomecânico de aço para elementos de mola

Country Status (4)

Country Link
US (2) US6458226B1 (pt)
EP (1) EP0974676A3 (pt)
JP (1) JP2000054024A (pt)
BR (1) BR9902836A (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050279434A1 (en) * 2002-08-16 2005-12-22 Oskar Pacher Spring element made from a ferritic chromium steel
DE10315419B3 (de) * 2003-04-04 2004-05-19 Thyssenkrupp Automotive Ag Verfahren zum Herstellen von Schraubenfedern oder Stabilisatoren
DE10315418B3 (de) * 2003-04-04 2004-07-22 Thyssenkrupp Automotive Ag Verfahren zur thermomechanischen Behandlung von Stahl
CN101974671B (zh) * 2010-11-09 2012-07-04 燕山大学 高强度超细晶弹簧钢的制造方法
EP3686295A1 (de) 2014-09-04 2020-07-29 Thyssenkrupp Federn und Stabilisatoren GmbH Verfahren zum herstellen von warmgeformten stahlfedern
DE102015217399A1 (de) * 2015-09-11 2017-03-16 Thyssenkrupp Ag Rohrfeder für Kraftfahrzeuge und ein Verfahren zum Herstellen einer Rohrfeder
DE102015217401B4 (de) * 2015-09-11 2018-04-05 Thyssenkrupp Ag Rohrfeder für Kraftfahrzeuge und ein Verfahren zum Herstellen einer Rohrfeder
CN109762965B (zh) * 2019-02-01 2024-04-16 哈尔滨工业大学（威海） 一种超高强韧性Mn-B钢结构件连续在线制备方法
ES2963989T3 (es) * 2019-08-23 2024-04-03 Vossloh Fastening Systems Gmbh Alambre de resorte, pinza de sujeción formada a partir del mismo y procedimiento para producir un alambre de resorte de este tipo

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542940A (en) * 1946-07-19 1951-02-20 Ford Motor Co Spring manufacture
US2527521A (en) * 1947-01-10 1950-10-31 Armco Steel Corp Spring and method
US3345727A (en) * 1965-04-20 1967-10-10 Rockwell Standard Co Method of making taper leaf springs
US4302959A (en) * 1977-11-29 1981-12-01 Yakovlev Vladimir K Method of forming helical springs
JPS5635723A (en) * 1979-08-30 1981-04-08 Kobe Steel Ltd Production of thin-walled cylindrical steel
US4711675A (en) * 1981-08-11 1987-12-08 Aichi Steel Works, Ltd. Process for improving the sag-resistance and hardenability of a spring steel
JPS5827956A (ja) * 1981-08-11 1983-02-18 Aichi Steel Works Ltd 耐へたり性の優れたばね用鋼
JPS5996246A (ja) * 1982-11-22 1984-06-02 High Frequency Heattreat Co Ltd 超高強度冷間成形ばね用鋼線およびその製造方法
JPS609827A (ja) * 1983-06-29 1985-01-18 High Frequency Heattreat Co Ltd 高強度ばねの製造方法
FR2584826B1 (fr) * 1985-07-11 1987-10-09 Labo Electronique Physique Element de commutation optique entre deux guides de lumiere et matrice de commutation optique formee de ces elements de commutation
US4671827A (en) * 1985-10-11 1987-06-09 Advanced Materials And Design Corp. Method of forming high-strength, tough, corrosion-resistant steel
JPS6347336A (ja) * 1986-08-14 1988-02-29 Kobe Steel Ltd 高強度ばね鋼の製造方法
ES2003647A6 (es) * 1986-12-24 1988-11-01 Advanced Materials Design Procedimiento para la obtencion de una aleacion de acero al carbono de elevada resistencia y tenacidad
JPS63235430A (ja) * 1987-03-24 1988-09-30 Nippon Steel Corp 靭性、溶接性に優れた調質高張力鋼材の製造法
US5100482A (en) * 1989-12-05 1992-03-31 Horikiri Spring Mfg., Co., Ltd. Method of preparing a leaf spring
JPH0559431A (ja) * 1991-03-28 1993-03-09 Sumitomo Metal Ind Ltd 耐遅れ破壊性に優れた高応力ばねの製造方法
US5282906A (en) * 1992-01-16 1994-02-01 Inland Steel Company Steel bar and method for producing same
JP2932943B2 (ja) * 1993-11-04 1999-08-09 株式会社神戸製鋼所 高耐食性高強度ばね用鋼材
DE4340568C2 (de) * 1993-11-29 1996-04-18 Sendner Thermo Tec Anlagen Gmb Verfahren zum kontinuierlichen Vergüten von Stahldraht

Also Published As

Publication number Publication date
JP2000054024A (ja) 2000-02-22
EP0974676A3 (de) 2003-06-04
US6458226B1 (en) 2002-10-01
EP0974676A2 (de) 2000-01-26
US20020170636A1 (en) 2002-11-21
US6939418B2 (en) 2005-09-06

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]