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EP2034038A3 - Method for producing an anti-wear layer on a magnetic component - Google Patents

Method for producing an anti-wear layer on a magnetic component Download PDF

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Publication number
EP2034038A3
EP2034038A3 EP08104705A EP08104705A EP2034038A3 EP 2034038 A3 EP2034038 A3 EP 2034038A3 EP 08104705 A EP08104705 A EP 08104705A EP 08104705 A EP08104705 A EP 08104705A EP 2034038 A3 EP2034038 A3 EP 2034038A3
Authority
EP
European Patent Office
Prior art keywords
component
producing
magnetic component
wear layer
temperature
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.)
Granted
Application number
EP08104705A
Other languages
German (de)
French (fr)
Other versions
EP2034038A2 (en
EP2034038B1 (en
Inventor
Jochen Schwarzer
Tatjana Miokovic
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2034038A2 publication Critical patent/EP2034038A2/en
Publication of EP2034038A3 publication Critical patent/EP2034038A3/en
Application granted granted Critical
Publication of EP2034038B1 publication Critical patent/EP2034038B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C23C8/48—Nitriding
    • C23C8/50—Nitriding of ferrous surfaces
    • 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
    • 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
    • C21D1/78—Combined heat-treatments not provided for above
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/80—After-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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Soft Magnetic Materials (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Herstellung einer Verschleißschutzschicht an einem weichmagnetischen Bauteil mit hoher Korrosionsbeständigkeit, wobei das weichmagnetische Bauteil aus einem chromhaltigen, ferritischen Stahl hergestellt ist, umfassend die Schritte: Eindiffundieren von Stickstoff bei einer Temperatur von 1000°C oder darüber bei einem Stickstoffpartialdruck von 0,1 x 105 bis 3 x 105 Pa, so dass eine aufgestickte Randschicht entsteht, Härten der aufgestickten Randschicht und Anlassen des Bauteils bei einer Temperatur von 20°C bis 650°C, um Spannungen im Bauteil zu reduzieren und magnetische Eigenschaften des Bauteils zu verbessern.

Figure imgaf001
The invention relates to a method for producing a wear protection layer on a soft magnetic component with high corrosion resistance, wherein the soft magnetic component is made of a chromium-containing ferritic steel, comprising the steps of: diffusing nitrogen at a temperature of 1000 ° C or above at a nitrogen partial pressure of 0.1 x 10 5 to 3 x 10 5 Pa, so that an embroidered edge layer is formed, hardening of the embroidered edge layer and tempering of the component at a temperature of 20 ° C to 650 ° C to reduce stresses in the component and magnetic properties of the component To improve component.
Figure imgaf001
EP20080104705 2007-08-17 2008-07-10 Method for producing an anti-wear layer on a magnetic component Active EP2034038B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710038983 DE102007038983A1 (en) 2007-08-17 2007-08-17 Method for producing a wear protection layer on a soft magnetic component

Publications (3)

Publication Number Publication Date
EP2034038A2 EP2034038A2 (en) 2009-03-11
EP2034038A3 true EP2034038A3 (en) 2009-09-02
EP2034038B1 EP2034038B1 (en) 2013-07-10

Family

ID=39884695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080104705 Active EP2034038B1 (en) 2007-08-17 2008-07-10 Method for producing an anti-wear layer on a magnetic component

Country Status (2)

Country Link
EP (1) EP2034038B1 (en)
DE (1) DE102007038983A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014201097A1 (en) * 2014-01-22 2015-07-23 Robert Bosch Gmbh Method for producing a solenoid valve
CN105874094B (en) * 2014-03-13 2018-02-13 新日铁住金株式会社 The manufacture method of nitridation treatment method and nitridation part
DE102014113846A1 (en) * 2014-09-24 2016-03-24 Härterei Technotherm Gmbh & Co. Kg Process for treating a ferrous material and treated ferrous material
DE102016222904A1 (en) * 2016-11-21 2018-05-24 Robert Bosch Gmbh Component which serves to guide and / or store at least one fluid and in particular for a fuel injection system, fuel injection system and method for producing a component
CN114381696B (en) * 2021-11-30 2022-10-25 西安交通大学 Miniature multi-source metal ultrathin membrane electrode ultrahigh vacuum evaporation device and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH374870A (en) * 1957-03-05 1964-01-31 Berghaus Elektrophysik Anst Process for nitriding the surface of objects made of a metal alloy
DE3129939A1 (en) * 1981-07-29 1983-03-24 Vjačeslav N. Bukarev Process for nitriding magnetic conductor parts of armco iron
EP0080124A2 (en) * 1981-11-20 1983-06-01 Linde Aktiengesellschaft Process for case hardening metallic articles
DE4421937C1 (en) * 1994-06-23 1995-12-21 Bosch Gmbh Robert Method for treating at least one part made of soft magnetic wear-resistant part and its use
DE102005039554A1 (en) * 2005-08-22 2007-03-01 Robert Bosch Gmbh Method for producing a solid housing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH374870A (en) * 1957-03-05 1964-01-31 Berghaus Elektrophysik Anst Process for nitriding the surface of objects made of a metal alloy
DE3129939A1 (en) * 1981-07-29 1983-03-24 Vjačeslav N. Bukarev Process for nitriding magnetic conductor parts of armco iron
EP0080124A2 (en) * 1981-11-20 1983-06-01 Linde Aktiengesellschaft Process for case hardening metallic articles
DE4421937C1 (en) * 1994-06-23 1995-12-21 Bosch Gmbh Robert Method for treating at least one part made of soft magnetic wear-resistant part and its use
DE102005039554A1 (en) * 2005-08-22 2007-03-01 Robert Bosch Gmbh Method for producing a solid housing

Also Published As

Publication number Publication date
EP2034038A2 (en) 2009-03-11
EP2034038B1 (en) 2013-07-10
DE102007038983A1 (en) 2009-02-19

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