WO2015000740A1 - Élément en acier résistant à l'usure, au moins partiellement non revêtu - Google Patents

Élément en acier résistant à l'usure, au moins partiellement non revêtu Download PDF

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Publication number
WO2015000740A1
WO2015000740A1 PCT/EP2014/063259 EP2014063259W WO2015000740A1 WO 2015000740 A1 WO2015000740 A1 WO 2015000740A1 EP 2014063259 W EP2014063259 W EP 2014063259W WO 2015000740 A1 WO2015000740 A1 WO 2015000740A1
Authority
WO
WIPO (PCT)
Prior art keywords
steel part
steel
hardening
hardened
partially
Prior art date
Application number
PCT/EP2014/063259
Other languages
German (de)
English (en)
Inventor
Sascha Sikora
Janko Banik
Thiemo Wuttke
Original Assignee
Thyssenkrupp Steel Europe Ag
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 Thyssenkrupp Steel Europe Ag filed Critical Thyssenkrupp Steel Europe Ag
Priority to CN201480038539.4A priority Critical patent/CN105358720A/zh
Priority to JP2016522440A priority patent/JP2016528381A/ja
Priority to US14/903,022 priority patent/US20160145705A1/en
Priority to ES14734430T priority patent/ES2704437T3/es
Priority to CA2916155A priority patent/CA2916155C/fr
Priority to EP14734430.3A priority patent/EP3017074B1/fr
Priority to KR1020167002943A priority patent/KR20160029102A/ko
Publication of WO2015000740A1 publication Critical patent/WO2015000740A1/fr

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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
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • 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
    • C21D1/06—Surface hardening
    • 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
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • 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
    • 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
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
    • 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
    • C23C8/20—Carburising
    • C23C8/22—Carburising of ferrous surfaces
    • 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
    • C23C8/24—Nitriding
    • C23C8/26—Nitriding of ferrous surfaces
    • 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
    • C21D2221/00—Treating localised areas of an article
    • C21D2221/02—Edge parts
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • 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
    • C21D9/18—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools

Definitions

  • the invention relates to a wear-resistant, at least partially uncoated steel part consisting of a hardenable steel grade, which has been produced by hot forming and / or curing of a semi-finished product.
  • the invention relates to a method for producing a wear-resistant, at least partially uncoated processing, conveying and / or emetic agent of agricultural machinery, conveyors, mining equipment or construction machinery from a semi-finished product, in which the semi-finished product is heated to a temperature of more than the Acl transformation temperature is and then hot worked and / or cured.
  • abrasive forces for example, for the provision of agricultural machinery, especially plows but also for blades of an excavator or screw conveyors for abrasive materials, such as the screw conveyor of a concrete mixer needed.
  • these are preferably subjected to hot forming, in which the semi-finished products from which the steel parts are produced, are first heated to a temperature above the Acl transformation temperature point, so that by hot forming and subsequent Hardening, ie rapid cooling, a transformation hardening of the microstructure occurs and arises in the material martensitic structure.
  • the martensitic structure has a much higher hardness but also a significantly higher mechanical strength, for example tensile strength.
  • Corresponding steel parts are known, for example, from German patent DE 10 2010 050 499 B3.
  • the German patent specification describes a manufacturing method for excavator buckets, concrete mixer screw conveyors, Conveyor screw blades or other conveying vanes of conveyor systems, in which the components are hot-formed and press-hardened.
  • German patent application DE 10 2010 017 354 AI deals with the problem of hot forming of galvanized flat steel products to high or high strength steel components.
  • the melting temperature of the metal of the protective coating is exceeded, there is a risk of the so-called
  • Liquid metal embrittlement which is caused by the penetration of the molten metal of the coating into the notches or cracks produced during the forming of the flat steel product, The liquid metal entering the steel substrate deposits there at grain boundaries and reduces the maximum there
  • the patent publication offers a nitration of the edge layer areas, so that finely structured
  • the object of the present invention is therefore to propose at least partially uncoated steel parts, the suitability of which is improved for use with abrasive materials.
  • the stated object is achieved for a steel part in that the steel part at least partially has a surface area which is up to a depth of a maximum of 100 ⁇ , preferably up to a depth of up to 40 ⁇ , by a
  • the hardened surface portion of the steel part is hardened by carburizing or nitriding. Both methods offer the possibility of specifically hardening near-surface areas of the steel part prior to hot forming or hardening. Nitriding also has the advantage that the hardness is not reduced during hot forming. Carburization increases the carbon content in the surface areas, but decreases again due to hot working.
  • the hardened surface area of the steel part has at least the hardness of the base material of the steel part lying below the surface area.
  • the wear resistance of the steel part can also be improved in that the hardness of the surface portion of the steel part is greater than the hardness of the base material. It was found that in particular the hardness of the
  • the steel part for use as processing, conveying and / or emetic in
  • Hot working and / or hardening hardened surface area of the steel part at least partially a hardness of 400 to 700 HV. As a rule, these values are only achieved by ultrahigh-strength steel grades after hot forming or hardening in the base material. The surface hardening before the
  • Hot forming or curing offers in particular the possibility that
  • the above-described object is achieved by a method for producing a wear-resistant, at least partially uncoated steel part for processing, conveying and / or breaking means of agricultural machines, conveyors, mining machines or construction machines from a semifinished product, in which the semifinished product at least partially heated to a temperature of more than the Acl transformation temperature and then hot worked and / or cured, achieved in that the semi-finished is at least partially subjected to a surface hardening prior to hot forming and / or curing, in which a surface area up to a Depth of a maximum of 100 ⁇ is cured.
  • a surface area of up to 40 ⁇ depth is hardened, in which usually the decarburization processes take place during hot forming.
  • the depth of the surface area which is to be hardened is determined by the exposure time of the
  • Construction machines have a reduced wear.
  • the hardening of the surface areas before hot forming or before hardening makes it possible to carry out the surface hardening on coilable materials, ie on the steel strip, so that a particularly economical production of
  • the hardening of the surface area is carried out by nitriding or by carburizing. Both methods make it possible to provide a higher hardness in the surface area, which after hot working and / or after hardening a higher Allow wear resistance of the surface of the hot-formed or hardened steel part.
  • the dew point of the annealing atmosphere is between -50 ° C and -5 ° C, so that the effect of humidity on the curing process is reduced.
  • the latter process parameters resulted in improved and more uniform surface hardening.
  • the depth of the surface hardening can be determined by the duration of the action of the
  • the surface hardening is carried out in a continuous furnace, so that, for example, a strip-shaped semifinished product, ie a coil-capable semifinished product is surface-hardened and the further hot-forming and / or
  • Press hardening steps can be supplied. But it is also conceivable one
  • FIG. 1 shows schematically an embodiment of the method for producing a wear-resistant, at least partially uncoated steel part
  • Fig. 2 shows the layer structure of the according to the embodiment of FIG. 1 treated semi-finished or steel part in a schematic representation
  • Fig. 1 is first very schematically an embodiment for producing a wear-resistant, at least partially uncoated steel part in one
  • the semifinished product 1 which consists of a steel, for example of a manganese-boron steel, dual-phase steel or TRIP steel, is first supplied to a surface hardening 2. If a strip-shaped semifinished product is unwound from a coil 1a and fed to the surface hardening 2, it is advantageous, for example, to carry out the surface hardening, for example in the case of a nitration, in a strip continuous furnace at the end thereof
  • the band-shaped semi-finished product 1 provided with a surface hardening now can be wound on a (not shown) coil.
  • the surface-hardened band-shaped semi-finished product is cut to length and a
  • the correspondingly produced steel part 4 is characterized by high strength values due to the hot forming and / or hardening step.
  • the surface area of the steel part also has an increased hardness due to the nitriding of the surface taking place before hot working and / or before hardening.
  • the surface hardening in method step 2 is preferred by a
  • the depth of the surface hardening can be adjusted.
  • the surface is nitrided with a holding temperature of 30s to 120s, wherein the
  • Ribbon continuous furnace or a board in a continuous furnace can be performed much more efficient than with differently shaped and different geometries having formed steel parts.
  • the quality of Surface hardening can also be more easily ensured by the use of ribbon-shaped or sheet-formed semi-finished products.
  • FIG. 2 shows schematically a cross-section of the semifinished product at three different times of the method.
  • ferritic microstructure la which is characterized by the combination of
  • the surface area lb is hardened by diffusion of nitrogen during nitriding or carbon during carburization, wherein the microstructure changes there.
  • the thickness of the surface area lb depends on the duration of the annealing.
  • the surface area is usually up to 100 ⁇ , in which the hardness of the semifinished product is changed.
  • a preferred range, which is a compromise of sufficient surface hardening and duration of the annealing treatment for surface hardening, has a thickness of 20 to 40 ⁇ m.
  • Surface hardening for example in nitriding, is then preferably from 30 seconds to 120 seconds.
  • the structure of the material la remaining below the surface area lb remains substantially unchanged during the annealing treatment.
  • the microstructure of the base material 1a is first converted into austenite and later partially into martensite by hardening.
  • Base material lc achieved.
  • the surface area lb remains unchanged apart from the decarburization of these layers.
  • the formed steel part 4 thus has a hardened region 1b and a through the
  • Hot working and hardening hardened area lc on. 3 and 4 show typical applications of the wear-resistant, at least partially uncoated steel part in the form of a screw conveyor 5 in Fig. 3 and a ploughshare 6 for agricultural plows in Fig. 4. Both components are typical representatives of processing, conveying and / or Emetics, which in
  • Table 1 now shows measurements of the hardness of samples A and B, which consist of a grade 22MnB5 steel.
  • Samples A and B were subjected to surface nitriding in an annealing atmosphere containing 1% by volume of NH 3 and 4% by volume of NH 3 at 760 ° C. and 90 s, respectively.
  • the surface nitriding was carried out at intercritical temperatures (T> Acl) since the austenite can dissolve more nitrogen than the ferrite.
  • the samples were thermoformed and cured. From the warm Sectioned or hardened steel parts sections were made and measured at a distance of 5 ⁇ from the surface to the hardness HV 0.01 (DIN EN ISO 6507-1).
  • the microhardness measurement showed in the samples depending on the content of NH 3 in the annealing atmosphere at the same Glühparametern, ie holding time and
  • the hardness of sample A first decreases from the value 460 HV measured at the surface to a value of 333 HV at 20 ⁇ m depth. Thereafter, the hardness increases again to a value of about 492 HV, indicating that the decarburization of the
  • Comparative example represented by a dotted line shows in the range of 5 to 35 ⁇ a reduced hardness, which is below 400 HV 1 (DIN EN ISO 6507-1).
  • the reduction in hardness compared to the base material, which lies between 450 HV 1 and 500 HV 1, is achieved by the final carbonization during the

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

Abstract

L'invention concerne un élément en acier résistant à l'usure, au moins partiellement non revêtu, constitué d'une qualité d'acier durcissable, et qui a été produit par formage à chaud et/ou trempe à partir d'un produit semi-fini. L'invention concerne par ailleurs un procédé de fabrication d'un moyen de traitement, de transport et/ou de concassage en acier résistant à l'usure, au moins partiellement non revêtu, d'engins agricoles, d'engins de transport, d'engins miniers ou d'engins de chantier à partir d'un produit semi-fini, le procédé consistant à chauffer le produit semi-fini à une température de transformation Acl, puis à le soumettre à un formage à chaud et/ou à une trempe. L'invention vise à proposer des éléments en acier au moins partiellement non revêtus qui soient mieux appropriés pour une utilisation avec des matériaux abrasifs. A cet effet, l'élément en acier présente au moins une partie de surface qui a été trempée jusqu'à une profondeur maximale de 100 µm, de préférence jusqu'à une profondeur atteignant 40 µm, par une trempe superficielle avant le formage à chaud et/ou la trempe.
PCT/EP2014/063259 2013-07-05 2014-06-24 Élément en acier résistant à l'usure, au moins partiellement non revêtu WO2015000740A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201480038539.4A CN105358720A (zh) 2013-07-05 2014-06-24 耐磨的、至少部分未涂覆的钢制零件
JP2016522440A JP2016528381A (ja) 2013-07-05 2014-06-24 耐摩耗性の、少なくとも部分的にコーティングされていない鋼部品
US14/903,022 US20160145705A1 (en) 2013-07-05 2014-06-24 Wear-resistant, partially uncoated steel parts and methods of producing same
ES14734430T ES2704437T3 (es) 2013-07-05 2014-06-24 Pieza de acero no revestida, resistente al desgaste
CA2916155A CA2916155C (fr) 2013-07-05 2014-06-24 Element en acier resistant a l'usure, au moins partiellement non revetu
EP14734430.3A EP3017074B1 (fr) 2013-07-05 2014-06-24 Élément en acier non revêtu résistant à l'usure
KR1020167002943A KR20160029102A (ko) 2013-07-05 2014-06-24 적어도 부분적으로 코팅되지 않은 내마모성 강철부

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013107100.7 2013-07-05
DE102013107100.7A DE102013107100A1 (de) 2013-07-05 2013-07-05 Verschleißfestes, zumindest teilweise unbeschichtetes Stahlteil

Publications (1)

Publication Number Publication Date
WO2015000740A1 true WO2015000740A1 (fr) 2015-01-08

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PCT/EP2014/063259 WO2015000740A1 (fr) 2013-07-05 2014-06-24 Élément en acier résistant à l'usure, au moins partiellement non revêtu

Country Status (9)

Country Link
US (1) US20160145705A1 (fr)
EP (1) EP3017074B1 (fr)
JP (1) JP2016528381A (fr)
KR (1) KR20160029102A (fr)
CN (1) CN105358720A (fr)
CA (1) CA2916155C (fr)
DE (1) DE102013107100A1 (fr)
ES (1) ES2704437T3 (fr)
WO (1) WO2015000740A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102016200912A1 (de) 2016-01-22 2017-07-27 Thyssenkrupp Ag Verschleißschutzelement für eine Zerkleinerungseinrichtung
KR20190042067A (ko) * 2016-10-31 2019-04-23 닛폰세이테츠 가부시키가이샤 강 부품의 제조 방법 및 강 부품
DE102020116126A1 (de) * 2020-06-18 2021-12-23 Bilstein Gmbh & Co. Kg Verfahren zum Presshärten von warmumformbaren Platinen
CN112589393B (zh) * 2020-12-14 2022-10-11 舟山中南锚链有限公司 一种锚链的生产工艺
CN113529009A (zh) * 2021-07-07 2021-10-22 江苏大学 一种硼钢的热处理方法、高强韧硼钢及其应用

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EP2623617A2 (fr) * 2012-02-01 2013-08-07 Benteler Defense GmbH & Co. KG Procédé de fabrication d'un composant de blindage et composant de blindage

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DE102006001198A1 (de) * 2006-01-10 2007-07-12 Sms Demag Ag Verfahren und Vorrichtung zur Einstellung gezielter Eigenschaftskombinationen bei Mehrphasenstählen
DE102010050499B3 (de) 2010-11-08 2012-01-19 Benteler Automobiltechnik Gmbh Verwendung eines verschleißfesten Stahlbauteils

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JP2016528381A (ja) 2016-09-15
KR20160029102A (ko) 2016-03-14
DE102013107100A1 (de) 2015-01-08
ES2704437T3 (es) 2019-03-18
CA2916155C (fr) 2017-11-07
EP3017074A1 (fr) 2016-05-11
EP3017074B1 (fr) 2018-10-17
CN105358720A (zh) 2016-02-24
CA2916155A1 (fr) 2015-01-08
US20160145705A1 (en) 2016-05-26

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