EP2821166B1 - Verfahren zur Herstellung einer verschleißbeständigen Komponente mit mechanisch gekoppelten zementierten Karbidkörpern - Google Patents

Verfahren zur Herstellung einer verschleißbeständigen Komponente mit mechanisch gekoppelten zementierten Karbidkörpern Download PDF

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Publication number
EP2821166B1
EP2821166B1 EP13175106.7A EP13175106A EP2821166B1 EP 2821166 B1 EP2821166 B1 EP 2821166B1 EP 13175106 A EP13175106 A EP 13175106A EP 2821166 B1 EP2821166 B1 EP 2821166B1
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EP
European Patent Office
Prior art keywords
base material
cemented carbide
wear resistant
metallic base
layer
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EP13175106.7A
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English (en)
French (fr)
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EP2821166A1 (de
Inventor
Tomas Berglund
Carl-Johan Maderud
Fredrik Meurling
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Sandvik Intellectual Property AB
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Sandvik Intellectual Property AB
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Priority to EP13175106.7A priority Critical patent/EP2821166B1/de
Priority to CA2912498A priority patent/CA2912498A1/en
Priority to US14/900,635 priority patent/US20170203368A1/en
Priority to PCT/EP2014/064153 priority patent/WO2015001006A2/en
Priority to EP14734502.9A priority patent/EP3016767A2/de
Publication of EP2821166A1 publication Critical patent/EP2821166A1/de
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Publication of EP2821166B1 publication Critical patent/EP2821166B1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/062—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts
    • B22F7/064—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools involving the connection or repairing of preformed parts using an intermediate powder layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
    • C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2204/00—End product comprising different layers, coatings or parts of cermet

Definitions

  • the present invention relates to a method for manufacturing a wear resistant component by Hot Isostatic Pressing according to claim 1.
  • Hot Isostatic Pressing is a method which is very suitable for Net Shape manufacturing of individual components.
  • HIP Hot Isostatic Pressing
  • a capsule which defines the final shape of the component is filled with a metallic powder and subjected to high temperature and pressure whereby the particles of the metallic powder bond metallurgically, intergranular voids are closed and the material is consolidated.
  • the main advantage of the method is that it produces components of final, or close to final, shape having strengths comparable to forged material.
  • the HIP method may be used for manufacturing wear resistant components. For example, tube bends or impellers for transporting sand or sand/water slurries.
  • the wear resistance of the component may thereby be increased by mixing hard particles, such as tungsten carbide powder, in the metallic powder from which the component is manufactured.
  • Cemented carbide bodies consist of a large portion hard particles and a small binder phase and are thus very resistant to wear.
  • M 6 C-phase a.k.a. eta-phase
  • W 2 C-phase brittle phases
  • Yet a further object of the present invention is to provide a method which allows for cost effective manufacturing of wear resistant components.
  • At least one of the above objects is achieved by a method for manufacturing a wear resistant component (100) comprising the steps:
  • the HIP process takes place at high pressures and a high temperature and achieves thereby a metallurgical bond between surfaces of the cemented carbide body and the metallic base material.
  • the metallurgical bond may be described as a flawless interface between the cemented carbide body and the metallic base material free of any pores, oxides or films.
  • the surfaces of the cemented carbide body and base material adhere fully to each other at the interface and essentially form a homogenous body.
  • the forming of the metallurgic bond takes place under various diffusion processes whereby, amongst other things, alloy elements diffuse between the wear resistant body and the metallic base material.
  • the carbides in the surface of the cemented carbide body dissolves and forms a complex phase, M 6 C -phase or eta-phase with alloy elements in the metallic base material and dissolved tungsten.
  • inventive method allows for selective wear protection of components. This since only areas which are subjected to wear är provided with cemented carbide bodies. This allows for reduced manufacturing costs.
  • a further advantage is that the properties, e.g. the mechanical properties, of the component may be tailored to suit a particular application by selecting specific materials for the body of the component and specific materials for the wear resistant cemented carbide bodies.
  • FIG 1 shows schematically a wear resistant component 100 manufactured with the inventive method.
  • the wear resistant component 100 is a brick for cladding a Grouser bar.
  • the wear resistant component could have any form.
  • the wear resistant component may be a pipe, or crushing equipment such as an impact hammer or a crusher tooth, or slurry handling equipment or mineral handling equipment.
  • the wear resistant component 100 comprises a body 1 which consists of metallic base material.
  • the metallic base material may any type of metallic material which is suitable to form the main structural body of the component in question.
  • the metallic base material may be a steel alloy, for example an iron based steel alloy, or a nickel based steel alloy or a cobalt based steel alloy.
  • the metallic base material is a ferritic steel alloy such as a ferritic iron based steel alloy, for example the commercially available steel 410L. Ferritic steels have low coefficient of thermal expansion, which minimizes stress in the metallic base material during cooling from the HIP temperature.
  • the metallic base material may also comprise hard particles in order to increase the overall hardness or strength of the component, for example the metallic base material may be Metal Matrix Composite (MMC).
  • MMC Metal Matrix Composite
  • Wear resistant cemented carbide bodies 2 are arranged on a surface of the component which is to be protected against wear, such as protection from abrasive wear, erosive wear, impacts or corrosion.
  • the wear resistant bodies 2 have a top portion 3 which extends over a section of the surface of the body 1 of metallic base material.
  • the cemented carbide bodies 2 further have an anchoring portion 4 which protrudes from the top portion 3.
  • the anchoring portion 4 is enclosed by the metallic base material and is, as will be further described below, due to its design locked mechanically in the metallic base material.
  • the number and shape of the wear resistant cemented carbide bodies depends on the type and shape of the component 100. Therefore, the component could comprise merely one wear resistant body or several wear resistant bodies such as two wear resistant bodies or any other number, for example 1000 wear resistant bodies.
  • a wear resistant cemented carbide body 2 is provided.
  • Figure 2a shows schematically a wear resistant body 2 which has a top portion 3 which is adopted to extend over at least a portion of the component in order to protect that portion of the component from wear.
  • the top portion 3 of the wear resistant cemented carbide body may have any shape suitable for protecting the underlying section of the component from wear.
  • the top portion may for example be rectangular, or triangular or have any other geometrical form which allows several wear resistant bodies 2 to be placed adjacent each other such that their top portions 3 together form a continuous, unbroken surface.
  • the upper surface of the top portion 3, i.e. which faces away from the anchoring portion 2 is flat, but depending of the field of application it may have other shapes, such as convex.
  • the lower surface of the top portion 3, i.e. that faces the anchoring portion may have any shape, such as flat or convex or concave.
  • the wear resistant body 2 further comprises at least one anchoring portion 4 which protrudes from the top portion 3.
  • the anchoring portion 4 protrudes from the lower side of the top portion 3 of the wear resistant body.
  • the anchoring portion 4 is in the form of an elongated profile and extends over the entire middle section of the top portion 3.
  • the anchoring portion 4 may also only extend over a portion of the top portion 3 of the wear resistant body 2.
  • Figure 2b shows an alternative design of the wear resistant body 2.
  • the anchoring portion 4 is a discrete, protruding element which protrudes like a stem from the center of the lower side of the top portion 3.
  • the advantage thereof is that the top portion 3 covers the entire anchoring portion 4 and thus protects the anchoring portion from wear.
  • the anchoring portion is designed such that it will be mechanically locked in the consolidated metallic base material after HIP. In general, this may be achieved by designing the anchoring portion 4 so that the cross-section of the upper end of the anchoring portion (i.e. adjacent the top portion 3) is narrower than the cross-section of the lower end of the anchoring portion 4, i.e. distal from the top portion.
  • the anchoring portion it is also possible to achieve a mechanical lock by designing the anchoring portion so that the cross-section of the middle of the anchoring portion may be thicker, or narrower than adjacent portions.
  • the anchoring portion 4 is an elongated drop-shaped profile.
  • the discrete anchoring portion 4 is drop-shaped. Both designs thereby achieve a mechanical lock in the final component.
  • Figure 2c and 2d shows alternative designs of the anchoring portion.
  • figure 2c shows an anchoring portion 4, having projections 4b which extends perpendicular from the anchoring portion 4 and parallel with the top portion 3 of the wear resistant body.
  • Figure 2c shows a design in which the anchoring portion 4 forms a wall around a hollow space under the top portion 3. The bottom end of the wall is undercut.
  • the wear resistant body 2 is manufactured from sintered cemented carbide.
  • the cemented carbide consist of 75 - 99%, preferably 90 - 95 %, of hard carbide particles, typically tungsten carbide (WC) and remainder binder phase such as cobalt. However, it may also consist of other carbides, such as TiC and other binder phase such as nickel or combinations of chromium, nickel and cobalt.
  • WC tungsten carbide
  • TiC titanium carbide
  • other binder phase such as nickel or combinations of chromium, nickel and cobalt.
  • the wear resistant bodies 2 may be manufactured by molding a blend of carbide and binder powders into a green body with a desired shape and subsequently sintering of the green body in a sintering furnace. Sintering may take place at a temperature above the melting point of the binder material, which melts and during solidification cements the hard carbides into a rigid wear resistant body.
  • a metallic base material 1 is provided.
  • the metallic base material is in the form of a volume of powder, for example a volume of powder having a particle size of 10-250 ⁇ m.
  • the metallic base material may also be a forged or a cast body. It is of course possible that the metallic base material is constituted by both powder and forged and/or cast bodies.
  • the wear resistant cemented carbide bodies 2 and the metallic base material 1 are arranged such that the top portions 3 of the wear resistant cemented carbide bodies 2 extends over at least a portion of the surface of the metallic base material 1.
  • a capsule 10 which at least partially defines the shape of the component 100 is provided.
  • the capsule 10, see figure 3a is manufactured from steel sheets that are welded together.
  • the capsule 10 may have any shape, in figure 3a the capsule defines the shape of a brick shaped component and has thus a bottom plate 11 and a circumferential wall 12.
  • Wear resistant cemented carbide bodies 2 are placed in the capsule 10 so that the upper surface of the top portion 3 of the wear resistant bodies are supported on the bottom plate 11 of the capsule whereby the anchoring portion 4 protrudes in a direction towards the interior of the capsule.
  • the capsule 10 is filled with a powder of a metallic base material 1.
  • the powder 1 thereby encloses the anchoring portion 4 of the wear resistant cemented carbide bodies and embeds the anchoring portions and the lower side of the top portion 3 of the wear resistant cemented carbide bodies 2. It is of course also possible to first fill the capsule with a volume of powder and then placing the wear resistant bodies 2 on the surface of powder volume and pushing the anchoring portion into the powder.
  • the wear resistant bodies can of course be arranged on any surface of the metallic base body.
  • the capsule is sealed by a lid 13 which is welded to the circumferential wall of the capsule, see figure 3b .
  • the metallic base material is a forged or cast solid body 1, see figure 4a .
  • the solid body 1 is provided with recesses 15, such as bores formed by drilling and/or milling, on a surface that shall be protected against wear.
  • the wear resistant cemented carbide bodies 2 are arranged such the top portion 3 extends over the surface of the solid body of metallic base material and such that their anchoring portions 4 are inserted into the recesses 15 and thereby enclosed by metallic base material 1, see figure 4b .
  • a lid 13 is placed over the wear resistant bodies 2 and welded to the metallic base body 1, see figure 4c . It is important to seal the arrangement of metallic base material and wear resistant bodies since the body of metallic material otherwise not will be compacted by the pressure in the HIP-chamber.
  • a layer 5 of Al 2 O 3 (alumina) or hBN (hexagonal boron nitride) is arranged between at least the anchoring portion 4 and the metallic material which encloses the anchoring portion.
  • the layer of Al 2 O 3 or hBN also extends between the metallic base material and the lower surface of the top portion 3 of the wear resistant body 2. More preferably, the layer of Al 2 O 3 or hBN is arranged between all interfacing surfaces of metallic base material and wear resistant cemented carbide bodies.
  • the layer of Al 2 O 3 or hBN is suitably applied on the wear resistant body, see figure 3a which shows a layer 5 that is applied on the anchoring portion 4 of the wear resistant cemented carbide body 2.
  • the layer of Al 2 O 3 or hBN may be applied either on the surfaces of the metallic body or on the wear resistant body 2.
  • Figure 4c show schematically a portion of a solid body, in which a layer 5 of Al 2 O 3 or hBN has been applied on the surface of the recess 15.
  • the layer of Al 2 O 3 or hBN will prevent metallurgical bonding between the wear resistant cemented carbide bodies and the metallic base material and thus also prevent the formation of brittle M 6 C-phase.
  • the layer of Al 2 O 3 or hBN may be applied by various methods.
  • Al 2 O 3 is applied by CVD (Chemical Vapour Deposition).
  • CVD Chemical Vapour Deposition
  • This method is suitable for applying coatings on components with complex geometries. The method allows for high coating speed and many components may therefore be coated at the same time.
  • a further advantage with CVD is that dense coatings are achieved and the repeatability is high.
  • Al 2 O 3 may also be applied by plasma spraying, which is a suitable method for coating of large surfaces. It is also possible to apply the layer of Al 2 O 3 by PVD (Physical Vapor deposition).
  • the thickness should be at least 2 ⁇ m in order to ensure that interfacing surfaces of wear resistant body and metallic base material does not come in contact with each other.
  • the resistance to metallurgical bonding is believed to increase with increasing layer thickness.
  • too thick layers may crack and therefore the thickness of Al 2 O 3 layers should be 2 ⁇ m - 10 ⁇ m, preferably 4 ⁇ m - 8 ⁇ m.
  • a further advantage of a layer of Al 2 O 3 is that Al 2 O 3 has good adhesion to the underlying surface and is resistant to mechanical wear which makes components with Al 2 O 3 layers easy to handle.
  • a layer of hBN may be applied by brushing or spraying a suspension of hBN, a binder, such as a solgel and a solvent, such as ethanol or water, onto the wear resistant body. It is also possible to apply the hBN layer onto the wear resistant body by dipping the wear resistant body in the suspension. To achieve a layer of suitable thickness the wear resistant body need to be sprayed, painted or dipped several times. Between each application, the wear resistant body may be allowed to dry for at least 10 minutes in room temperature. The drying time must be adjusted in dependency of the solvent since, for example ethanol, evaporates faster than water.
  • a suitable solution of hBN and solvent is for example MYCRONID® BORON NITRIDE SUSPENSION which is available commercially from ESK Ceramics GmbH & Co. KG.
  • the thickness should be at least 20 ⁇ m in order to ensure that interfacing surfaces of wear resistant body and metallic base material does not come in contact during HIP.
  • too thick layers may result in that the wear resistant bodies are not sufficiently retained in the metall base material.
  • a further disadvantage with thick layers is that the adhesion of thick layers to the base material is poor. Therefore, the thickness of hBN layers should be 20 ⁇ m - 100 ⁇ m, preferably 50 ⁇ m - 80 ⁇ m.
  • An additional advantage with a layer of hBN is that due to its low friction coefficient the hBN layer allow relative motion between the metal and the cemented carbide as well as reduce stresses in the interface otherwise arising from the thermal elongation mismatch between the metal and the cemented carbide.
  • the layer of TiC may for example be 5 - 10 ⁇ m and increases the adhesion between the cemented carbide and the Al 2 O 3 coating.
  • the sealed arrangement of metallic base material and wear resistant cemented carbide bodies are subjected to Hot Isostatic Pressing (HIP) at a predetermined temperature, a predetermined isostatic pressure and a for a predetermined time so that the metallic base material closes around the anchoring portions of the wear resistant bodies and lock thereby these mechanically in the component.
  • HIP Hot Isostatic Pressing
  • the capsule is thereby placed in a heatable pressure chamber, normally referred to as a Hot Isostatic Pressing-chamber (HIP-chamber).
  • the heating chamber is pressurized with gas, e.g. argon gas, to an isostatic pressure in excess of 500 bar. Typically the isostatic pressure is 900 - 1200 bar.
  • the chamber is heated to a temperature which is below the melting point of the metallic base material. The closer the temperature is to the melting point, the higher is the risk for the formation of melted phase and unwanted streaks of brittle carbide. Therefore, the temperature should be as low as possible in the furnace during HIP:ing. However, at low temperatures the diffusion process slows down and the material will contain residual porosity and the metallurgical bond between individual particles or pieces of metallic base material becomes weak. Therefore, the temperature is 900 - 1150 °C, preferably 1000 - 1150 °C.
  • the arrangement of metallic base material and cemented carbide bodies is held in the heating chamber at the predetermined pressure and the predetermined temperature for a predetermined time period.
  • the consolidation processes that take place between the metallic materials during HIP:ing are time dependent so long times are preferred.
  • the form should be HIP:ed for a time period of 0.5 - 3 hours, preferably 1 - 2 hours, most preferred 1 hour.
  • FIG. 5 shows a HIP:ed component consisting of a solid body 1 of metallic base material and wear resistant bodies that are mechanically locked in the metallic base material.
  • the capsule may be partly or completely stripped from the consolidated component by e.g. machining or grit blasting.
  • Test 1 the effect of a coating of alumina (Al 2 O 3 ) on a cemented carbide body was investigated.
  • Test 2 the effect of coatings of hexagonal boron nitride (hBN) on cemented carbide bodies was investigated.
  • hBN hexagonal boron nitride
  • a cemented carbide test body having a 5 ⁇ m thick TiC coating closest to the cemented carbide surface and an outermost 5 ⁇ m thick coating of Al 2 O 3 was provided.
  • a cutting insert was used.
  • the insert had the dimensions 2 x 2 x 0.5 (cm).
  • the coatings were applied with CVD.
  • FIG. 6 shows a Scanning Electron Microscope (SEM) image of the cemented carbide body 2 which consisted of two different types of hard particles 2a and 2b and a binder phase 2c.
  • the chemical composition of the cemented carbide body was determined in the SEM.
  • the first type of hard particles 2a was identified as tungsten carbide.
  • the second type of hard particles 2b consisted of carbides of tungsten, Ti and Nb.
  • the binder phase 2c consisted of mainly cobalt with a small addition of nickel.
  • the cemented carbide body was embedded in commercially available 410L steel powder in a capsule of steel sheets that had been welded together.
  • the 410L powder had the following composition:
  • the steel powder had the following Sieve analysis according to ASTM-E11: Micron: 355 300 212 125 53 Mesh: 45 50 70 120 270 % ⁇ 100 94 76 47 8
  • the capsule was sealed by welding and subjected to Hot Isostatic Pressing (HIP) at a temperature of 1150°C, at a pressure of 1000 bar.
  • HIP Hot Isostatic Pressing
  • the capsule was held at this temperature and pressure for two hours and then allowed to cool down with a cooling rate of approximately 3-5°C /min.
  • the capsule was cut through the center of the cemented carbide body and samples were taken for analysis.
  • the samples were prepared prepared by polishing for analysis by scanning electron microscopy (SEM) which was performed in a Zeiss EVO 50 VPSEM.
  • Figure 7 shows a SEM image of the interface between the surface zone of the cemented carbide body 2 and the surrounding steel matrix 1.
  • the layer closest to the surface of the cemented carbide body is TiC.
  • the outermost layer, 5 is Al 2 O 3 .
  • the cemented carbide insert consists of three different phases 1 a, 1b and 1 c.
  • the hard phase particle size was roughly 3 ⁇ m and below.
  • the binder phase consisted mainly of cobalt but with an addition of chromium.
  • the inserts were dipped eight times each in the hBN solution. Between each dipping the inserts were allowed to dry for 30 minutes in room temperature.
  • the coating on the first insert was hardened at a temperature of 300 for 30 minutes after the final dipping.
  • the coating on the second insert not hardened instead it was only allowed to dry in room temperature for 30 minutes between each dipping.
  • Figure 9 shows a SEM image of a sample from the first cemented carbide cutting insert.
  • void 6 i.e. the black area between the steel matrix 1 and the surface of the cutting insert 2.
  • the void results from the hBN coating that was removed during sample preparation.
  • the void is of uniform cross-section and approximately 20 ⁇ m thick.
  • bridges between the steel matrix and the surface of the cemented carbide insert.
  • the "bridges” are believed to be formed by steel powder that penetrates through cracks in the hBN coating. The cracks may have been formed due to that the coating becomes brittle during hardening.
  • a reaction zone is formed between steel and cemented carbide at the end of the "bridge".
  • the "bridges" are relatively few and narrow and have therefore no significant negative effect on the mechanical interlocking attachment of the cemented carbide insert in the steel matrix.
  • Figure 10 shows a SEM imagine of a sample from the second cemented carbide cutting insert. Also in this sample the hBN coating has been removed during preparation of the samples and left a void 6 between the steel matrix 1 and the cemented carbide insert 2.
  • Figure 11 is an enlargement of a portion of the image in figure 10 .
  • Figure 12 is a 1000 times magnification of figure 10 , it is clearly visible that no reaction zone has formed where the hBN layer has separated steel powder and cemented carbide insert.
  • the chemical composition of the uncoated cemented carbide insert was identical to the chemical composition of the inserts used in Test 2.
  • Figure 13 shows a SEM-image of a sample from the HIP:ed uncoated cemented carbide insert.
  • the uncoated cemented carbide insert 2 is metallurgically bound to the surrounding 410L steel matrix 1 and a reaction zone 7 of brittle carbide phases is formed in the outermost part of the cemented carbide insert 2.
  • the chemical composition of the reaction phase 7 is shown in figure 14 .

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Claims (14)

  1. Verfahren zum Herstellen eines verschleißfesten Bauteiles (100), welches die Schritte aufweist:
    - Bereitstellen eines metallischen Grundmaterials (1) und zumindest eines verschleißfesten Sintercarbidkörpers (2), wobei der Sintercarbidkörper (2) einen oberen Bereich (3) aufweist, der dafür ausgelegt ist, sich über zumindest einen Abschnitt der Oberfläche des metallischen Grundmaterials (1) zu erstrecken, sowie einen Ankerabschnitt (4) aufweist, der dafür ausgelegt ist, in dem endgültigen verschleißfesten Bauteil (100) durch das metallische Grundmaterial (1) mechanisch festgehalten zu werden,
    - Anordnen des verschleißfesten Sintercarbidkörpers (2) derart, dass der obere Bereich (3) sich über zumindest einem Abschnitt der Oberfläche des metallischen Grundmaterials (1) erstreckt und so, dass der Ankerbereich (4) zumindest teilweise durch das metallische Grundmaterial (1) eingeschlossen ist,
    - Abdichten der Anordnung des verschleißfesten Sintercarbidkörpers (2) und des metallischen Grundmaterials (1),
    - Einem heißen isostatischen Pressen aussetzen des metallischen Grundmaterials (1) und des zumindest einen verschleißfesten Sintercarbidkörpers (2) durch Erhitzen auf eine vorbestimmte Temperatur und bei einem vorbestimmten Druck für eine vorbestimmte Zeitdauer,
    gekennzeichnet durch den Schritt, dass eine Schicht (5), die Aluminiumoxid (Al2O3) oder hexagonales Bornitrid (hBN) zumindest zwischen dem Ankerbereich (1) des verschleißfesten Sintercarbidkörpers (2) und dem metallischen Grundkörpermaterial (1) aufweist.
  2. Verfahren nach Anspruch 1, wobei die Schicht (5) zumindest auf den Ankerabschnitt (4) des verschleißfesten Sintercarbidkörpers (2) aufgebracht wird.
  3. Verfahren nach Anspruch 1 oder 2, wobei die Schicht (5) auf das metallische Grundmaterial (1) aufgebracht wird.
  4. Verfahren nach einem der Ansprüche 1 bis 3, wobei die Schicht (5) aus Aluminiumoxid (Al2O3) oder hexagonalem Bornitrid (hBN) besteht.
  5. Verfahren nach einem der Ansprüche 1 bis 4, wobei die Schicht (5) aus Al2O3 besteht und wobei eine Zwischenschicht, welche Ti aufweist, zwischen der Al2O3-Schicht (5) und der Oberfläche des verschleißfesten Sintercarbidkörpers (2) angeordnet ist.
  6. Verfahren nach Anspruch 5, wobei die Zwischenschicht TiC ist.
  7. Verfahren nach einem der Ansprüche 4 bis 6, wobei die Schicht (5) aus Al2O3 besteht, wobei die Dicke der Schicht (5) 2 µm - 10 µm, vorzugsweise 4 µm - 8 µm beträgt.
  8. Verfahren nach einem der Ansprüche 1 bis 4, wobei die Schicht (5) aus hBN besteht, wobei die Schicht (5) eine Dicke von 20 µm - 100 µm, vorzugsweise 50 µm - 80 µm hat.
  9. Verfahren nach Anspruch 4 oder 8, wobei die hBN-Schicht (5) als eine Suspension aufgebracht wird, welche hBN-Pulver und ein Lösungsmittel aufweist, wobei die Suspension durch Eintauchen oder Sprühen oder Bürsten aufgebracht wird.
  10. Verfahren nach einem der Ansprüche 1 bis 9, wobei der Ankerabschnitt (4) des verschleißfesten Sintercarbidkörpers einen tropfenförmigen Querschnitt hat.
  11. Verfahren nach einem der Ansprüche 1 bis 10, wobei das metallische Grundmaterial (1) eine eisenbasierte Legierung oder eine kobaltbasierte Legierung oder eine nickelbasierte Legierung oder ein Metallmatrixkompositmaterial (MMC) ist.
  12. Verfahren nach einem der Ansprüche 1 bis 11, wobei das metallische Grundmaterial (1) eine eisenbasierte Ferritstahl-Legierung ist.
  13. Verfahren nach einem der Ansprüche 1 bis 12, wobei das metallische Grundmaterial (1) ein gegossener und/oder geschmiedeter Körper ist, wobei zumindest eine Aussparung (15) in dem metallischen Grundmaterial ausgebildet ist, wobei der Ankerabschnitt (4) des verschleißfesten Sintercarbidkörpers (2) in der Aussparung (15) angeordnet ist.
  14. Verfahren nach einem der Ansprüche 1 bis 12, wobei das metallische Grundmaterial ein Pulver ist, wobei der Ankerabschnitt (4) des verschleißfesten Sintercarbidkörpers (2) derart angeordnet ist, dass der Ankerabschnitt (4) zumindest teilweise durch das metallische Grundmaterialpulver umschlossen ist.
EP13175106.7A 2013-07-04 2013-07-04 Verfahren zur Herstellung einer verschleißbeständigen Komponente mit mechanisch gekoppelten zementierten Karbidkörpern Not-in-force EP2821166B1 (de)

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EP13175106.7A EP2821166B1 (de) 2013-07-04 2013-07-04 Verfahren zur Herstellung einer verschleißbeständigen Komponente mit mechanisch gekoppelten zementierten Karbidkörpern
CA2912498A CA2912498A1 (en) 2013-07-04 2014-07-03 A method for manufacturing a wear resistant component comprising mechanically interlocked cemented carbide bodies
US14/900,635 US20170203368A1 (en) 2013-07-04 2014-07-03 Method for manufacturing a wear resistant component having mechanically interlocked cemented carbide bodies
PCT/EP2014/064153 WO2015001006A2 (en) 2013-07-04 2014-07-03 A method for manufacturing a wear resistant component comprising mechanically interlocked cemented carbide bodies
EP14734502.9A EP3016767A2 (de) 2013-07-04 2014-07-03 Verfahren zur herstellung einer verschleissfesten komponente mit mechanisch gekoppelten sinterkarbidkörpern

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WO2017068153A1 (en) * 2015-10-23 2017-04-27 Sandvik Intellectual Property Ab A process of manufacturing cermet or cemeted carbide component
EP3453510B1 (de) * 2017-09-08 2022-03-02 Apple Inc. Verbinden von polymermaterial mit eloxiertem metall mittels aussparungen
IT201800003964A1 (it) 2018-03-26 2019-09-26 Valme S R L Unico Socio Elemento tubolare per il trasferimento di materiali abrasivi, in particolare calcestruzzo, e procedimento per realizzarlo
IT201800004795A1 (it) * 2018-04-23 2019-10-23 Elemento tubolare per il trasferimento di materiali abrasivi, in particolare calcestruzzo, e procedimento per realizzarlo
EP4107796A4 (de) 2020-02-21 2024-02-28 Applied Materials, Inc. Verfahren zur herstellung einer metallnitridschicht mit hoher kritischer temperatur

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GB1174624A (en) * 1967-05-18 1969-12-17 Federal Mogul Corp Method of Mechanically-Uniting Sintered Material Parts
CA1174438A (en) * 1981-03-27 1984-09-18 Bela J. Nemeth Preferentially binder enriched cemented carbide bodies and method of manufacture
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EP3016767A2 (de) 2016-05-11
US20170203368A1 (en) 2017-07-20
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EP2821166A1 (de) 2015-01-07
CA2912498A1 (en) 2015-01-08

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