EP2450132A2 - Corps de traitement pour le broyage d'un matériau de chargement - Google Patents

Corps de traitement pour le broyage d'un matériau de chargement Download PDF

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Publication number
EP2450132A2
EP2450132A2 EP20110187295 EP11187295A EP2450132A2 EP 2450132 A2 EP2450132 A2 EP 2450132A2 EP 20110187295 EP20110187295 EP 20110187295 EP 11187295 A EP11187295 A EP 11187295A EP 2450132 A2 EP2450132 A2 EP 2450132A2
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EP
European Patent Office
Prior art keywords
die
cast
hard material
metal
machining
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EP20110187295
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German (de)
English (en)
Inventor
Lutz Krodel-Teuchert
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SHW Casting Technologies GmbH
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SHW Casting Technologies GmbH
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Publication date
Application filed by SHW Casting Technologies GmbH filed Critical SHW Casting Technologies GmbH
Publication of EP2450132A2 publication Critical patent/EP2450132A2/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles

Definitions

  • the invention relates to a processing body for comminuting a feed material which comprises a cast carrier matrix as metal cast body and at least one insert body embedded in the cast carrier matrix, which increases the wear resistance of the processing body, and an insert body for such a processing body. Furthermore, the invention relates to a method for the production and a method for repairing the processing body.
  • wear-resistant machining bodies are required for the comminution of materials, in particular for grinding granular materials.
  • the wear resistance of the machining body is important for minimizing the abrasion during the crushing process as well as for the life of the machining body. Accordingly large is the industrial demand for machining bodies, which are wear-resistant at least on their functional surface.
  • a processing body for comminuting a feedstock with at least one wear-resistant functional surface formed by a composite material has a porous hard material body embedded in a casting matrix of metallic casting material into which the casting material has penetrated.
  • the hard material body is a ceramic body with a ceramic material from the group of carbides, oxides and nitrides or a combination of several of these materials.
  • Another object of the invention is to provide a method by which the wear characteristics of the processing body of the application can be flexibly adjusted.
  • Yet another object is to provide a repair method for a machining body of the type mentioned.
  • a machining body for comminuting a feedstock as a cast metal body comprises a cast carrier matrix and at least one insert body embedded in the cast carrier matrix and increasing the wear resistance of a functional or Versehlford Structure of the processing body.
  • the at least one insert body is a press or sintered body of a mixture of metal powder and hard material or a die cast body comprising a hard material in a die-cast metal diecasting die, or comprises such a body in a composite.
  • the at least one insert body may be formed in a first variant as a pure compact, in a second variant as a sintered body or pressed sintered body and in a third variant as a die-cast body. An additional sintering of the diecast body should not be excluded.
  • the sintered or pressed body can be intermediate molded, for example pre-sintered, in particular at a presintering temperature of 200-300 ° C.
  • the insert body can also be sintered together in any combination by a common sintering process and thereby be added to the insert body, for example at least one sintered body with at least one die-cast body.
  • metal all metallic materials are understood, in particular iron-based alloys.
  • the word "Functional surface” means the surface of the processing body which comes into direct contact with the material to be processed.
  • Press, sintered or die-castings can be produced cost-effectively, procedurally simple and with variable geometry.
  • a firm connection of insert body and cast matrix is ensured.
  • the choice of material for the cast carrier matrix and for the hard material, the wear resistance of the machining body can be adjusted specifically.
  • the mixing ratio of metal to hard material is freely adjustable within wide limits.
  • the metal cast body is used as a processing body for comminuting and accordingly forms a grinding body, crimping body or compact for crushing a feedstock, preferably granular feedstock.
  • Such metal castings are used in particular in the food industry, the coating industry, the cement industry and the brick industry, to name but a few examples.
  • the metal casting can be used as a grinding medium for coal and lime grinding, clinker grinding and, for example, the production of cement raw meal.
  • the cast-carrier matrix of the processing body can be formed of a wear-resistant iron-based alloy, preferably a wear-resistant cast iron, in particular with a bainite and / or martensite structure.
  • a molybdenum-alloyed and / or chromium-alloyed cast iron, in particular high-chromium-alloyed cast iron represents a particularly preferred matrix material. Examples of such material are EN-GJN-HV600 (GX300CrNiSi9-5-2) and EN-GJN-HV600 (GX300CrMoNi15-2-1) called.
  • Another preferred matrix material is, for example, GX300NiMo3Mg or ADI Grade 1-5 (austempered ductile iron), the structure of which consists essentially of bainitic or accicular basic mass. If the Gusslicmatrix is present in a bainite or with a bainite structure, the lower bainite is preferred with a formation temperature from about 250 ° C and up to about 350 ° C due to its higher toughness upper bainite, which is also particularly suitable as a microstructure.
  • each of Cast metal bodies for material processing known casting material form the Gusslutematrixmaterial.
  • the metal powder of the press or sintered body may be formed of an iron-base alloy, in particular, a cast iron.
  • the metal powder of the pressed or sintered body may be formed from a metal which melts at a higher level than the metal of the cast carrier matrix, preferably steel, in particular sintered steel, particularly preferably tool steel.
  • the use of a higher-melting metal ensures that the insert body is melted when pouring the casting mold for the metal casting body, only near the surface, in the area of contact with the molten metal forming the casting carrier matrix. In this way, the insert body at least essentially maintains its shape during pouring of the mold, and segregation of the hard material particles can be prevented.
  • the metal powder of the pressed or sintered body may have a grain size of preferably at least 10 nm, and preferably at most 1000 ⁇ m. Particularly preferably, the metal powder has a grain size of 1 .mu.m to 500 .mu.m.
  • the hard material may be a carbide, oxide and nitride ceramic material or a combination of these materials, more preferably a carbide-forming carbide-forming ceramic material of the group consisting of Si, Cr, W, Mo, V, Nb, Ti, Zr, Ta and Hf. Particularly preferably, the hard material can be made of SiC.
  • the hardness of the hard material is preferably greater than that of the cast carrier matrix and also greater than the hardness of the pressed or sintered metal structure of the insert body. While the Vickers hardness of the Gus carrier matrix and that of the metallic press or sintered structure of the insert body is advantageously not greater than about 1000 HV, the hard material has a Vickers hardness of preferably at least 1500 HV, more preferably at least 2000 HV.
  • the hard material advantageously also has a greater compressive strength than the cast carrier matrix and the metallic pressed or sintered structure.
  • a ceramic material of the type mentioned has these properties and not infrequently has a Vickers hardness of up to 3000 HV.
  • the hard material may preferably have a hardness of at least 8 Mohs and at most 10 Mohs, more preferably a hardness of at least 8.5 Mohs and at most 9.8 Mohs.
  • the hard material may be at least substantially evenly distributed, preferably finely divided, in the pressed, sintered or die cast body in the form of hard material particles.
  • a uniform, i. Homogeneous distribution of the hard material in the form of hard particles in the insert body causes increased dimensional stability during casting and a high and uniform over the functional surface wear resistance of the machining body.
  • the hard material particles can each have a maximum extent of at most 5 mm. Hard material particles in this size range can be processed relatively easily in a press, sinter or die casting process.
  • the hard material particles preferably each have an extension in at least one of the spatial directions of at least 20 ⁇ m. Particularly preferably, the extent in at least one of the spatial directions at least 1500 microns and the largest extent at most 2500 microns.
  • the hard material particles may preferably have a grain size of from F5 to at least F30, particularly preferably from F8 to at least F12.
  • the hard material particles may advantageously have a multimodal particle size distribution.
  • a multimodal particle size distribution comprises at least two modes which appear as two distinct peaks (local maxima) of particle size distribution.
  • the metal content of the pressed or sintered body may be, in particular, 10 to 60% by weight, preferably 20 to 60% by weight, more preferably 30 to 60% by weight.
  • the ceramic part of the Press or sintered bodies may in particular be from 10 to 90% by weight, preferably from 40 to 80% by weight, more preferably from 40 to 60% by weight.
  • the processing body may comprise in combination with or as an alternative to the at least one press or sintered body as insert body at least one die cast body as insert body or further insert body with a hard material in a die-cast metal matrix - hereinafter "die-cast metal".
  • the hard material in the form of hard material particles for producing the die-cast body can be injectable or inflatable into a die-casting mold.
  • the hard material particles may be shaped and / or dimensioned in such a way that they do not clog them up during injection or injection through nozzles.
  • the hard material particles and the diecast metal may be injectable or inflatable via separate feed lines into a die casting mold.
  • the hard material particles mixed with the die-cast metal can be injectable or inflatable into the die casting, wherein the hard material particles and the die-cast metal can preferably be mixable in a mixing chamber upstream of the die casting mold or in a feed line section upstream of the die casting mold.
  • a good mixing of the hard particles with the die-cast metal can be achieved.
  • segregation of the hard material particles and of the diecast metal can be prevented by a sufficiently rapid cooling of the diecast metal melt, in particular by a geometry of the insert body which promotes rapid cooling.
  • the hard material in the insert body formed by diecasting can be surrounded by the diecasting matrix as a hard material body and the die cast metal of the diecasting matrix at least partially penetrated into cavities of the hard material body.
  • the cavities of the hard material body may be formed as pores, in particular open pores, or macroscopic cavities.
  • the hard material body can thus have both microscopic pores and macroscopic cavities, which may be infiltrated at least partially by the die-cast metal or into which the Die-cast metal may have penetrated.
  • the hard material body is advantageously produced separately by pressing or sintering a ceramic material.
  • the die-cast matrix of the insert body may be formed of an iron-based alloy, preferably a cast iron.
  • the use of a similar material for the die-cast matrix of the insert body and the Gussskamatrix of the processing body ensures a firm material connection between insert body and Gussskamatrix.
  • the metal content of the die-cast body may be in particular 10 to 90% by weight, preferably 20 to 70% by weight.
  • the proportion of ceramic in the die-cast body may be in particular 10 to 90% by weight, preferably 30 to 80% by weight.
  • the insert body formed as a press, sintered, or die-cast body can be connected in a material-bonded manner to the cast-carrier matrix, preferably in such a way that the cohesive connection can be formed by an interface reaction during the pouring out of the processing body.
  • the insert body can be melted close to the surface on contact with the metal melt forming the cast carrier matrix, as a result of which the metallic pressed, sintered or die-cast structure of the insert body can bond to the cast carrier matrix in a material-locking manner.
  • the at least one insert body can be adapted in shape to the functional surface of the metal cast body, so to speak tailor-made.
  • the processing body may comprise a plurality of insert bodies which are arranged next to one another on the functional surface of the metal casting body, preferably as close as possible to one another, be arranged and embedded in the casting matrix. Particularly preferably, a distance between the insert bodies is at least 2 mm and at most 10 mm.
  • Each of the insert bodies may preferably have the following dimensions: the length is at least 10 mm and at most 500 mm, the width is at least 10 mm and at most 300 mm and the thickness is at least 5 mm and at most 100 mm.
  • the insert bodies may have the shape of simple cuboids, prisms or round, including cylindrical bodies.
  • each individual insert body can have at least one passage.
  • the passage may preferably change a cross section of the insert body.
  • the passage widens from one opening end to the other, preferably evenly over its entire length. He can widen conically to the functional surface of the insert body.
  • the insert body may have a plurality of passages, which may be particularly preferably arranged in a longitudinal and a transverse direction of the functional surface offset from each other. The comments made for the extension preferably apply to several or all of the passes.
  • a breaking of the insert body from the Gussharimatrix in a stress of the processing body can thus be further reduced or avoided.
  • the wear resistance of the machining body is increased with increasing removal of the functional surface, since the hard material content of the functional surface increases continuously.
  • the formation of the at least one insert body with one or preferably a plurality of macroscopic passages, which expands or preferably widens from one end to the other, is advantageous in itself and not only for embodiments in which the at least one or more Insert body is a press or sintered body of a mixture of metal powder and hard material is or are.
  • the Applicant reserves the right to apply a divisional application to a processing body for comminuting a feedstock according to the preamble of claim 1, in is further claimed that the insert body is a press or sintered body of hard material or a mixture of metal powder and hard material or a diecasting of the type disclosed herein.
  • An insert body sintered only from the hard material can be encapsulated directly as an insert body with the cast metal of the cast carrier matrix and infiltrated in the passages.
  • an insert body having at least one passage or preferably several passages which may consist only of hard material or as described of a mixture of metal powder and hard material, is poured out with a metal which is more resistant to wear than the material of the caster carrier matrix and is embedded as disclosed in the Gusschtmatrix by casting with the casting material of the Gussskamatrix only after this executed as an intermediate step casting process.
  • the metal casting body can have only one or more embedded insert bodies locally, in particular in a region in which an increased wear compared to other regions is to be feared.
  • the wear resistance of the entire functional surface of the metal cast body can be improved by embedding the insert body or bodies in the cast matrix.
  • the insert bodies may preferably form at least 80% but less than 100% of the functional surface, particularly preferably at least 85% and at most 95% of the functional surface.
  • the functional surface may preferably be planar. More preferably, the functional surface may be curved. Particularly preferably, the functional surface may be smooth, in particular also on the areas which surround the insert bodies. Preferably, the functional surface may be contiguous. Alternatively, the functional surface can also be composed of separate surface areas which are used simultaneously or successively during the comminution process.
  • Table 1 summarizes preferred material properties of the insert body, with particularly preferred value ranges being entered in parentheses. Not only the value ranges of Table 1, but also each limit of the value ranges per se is claimable.
  • Table 1 Material characteristics of the insert body. Extension of the hard material particles 20 - 5000 ⁇ m (800 - 3000 ⁇ m) Grain of metal powder 10 nm - 1000 ⁇ m (1-500m 11m) Vickers hardness of the hard material 8 - 10 Mohs (8.5 - 9.8 Mohs) Vickers hardness of the Gus carrier matrix 100 - 900 HV (250 - 650 HV) Vickers hardness of the metallic pressed or sintered structure 100 - 900 HV (250 - 650 HV) Vickers hardness of the die-cast matrix 100 - 900 HV (250 - 650 HV) Metal content of the pressed or sintered body 10 to 60% by weight (20 to 60% by weight) Ceramic component of the pressed or sintered body 10 to 90% by weight (40 to 80% by
  • a method according to the invention for producing a processing body for material comminution comprises at least the following steps: At least one insert body increasing the wear resistance is formed by at least pressing a mixture of a metal powder and hard material or by die-casting a die-cast metal as a die-cast matrix which at least partially surrounds a hard material.
  • the insert body is arranged in a mold.
  • the casting mold is filled with a wear-resistant iron-based alloy, preferably a wear-resistant cast iron, so that the iron-based alloy at least partially surrounds the at least one insert body.
  • a processing body with increased wear resistance can be produced procedurally simple.
  • a Einlegektirper can be produced with the aforementioned material properties by means of a press, sintering and / or die-casting.
  • the at least one insert body in the casting mold it can, in particular by means of one or more Molded nails or screws to be attached to a mold surface. If several insert bodies needed, they can be arranged close to each other next to each other on the mold surface and fixed.
  • the mold is filled with a wear-resistant iron-based alloy, preferably of the aforementioned type, so that the iron-based alloy at least partially surrounds the insert body or bodies.
  • An insert body formed as a sintered body is preferably produced by powder metallurgy.
  • the insert body formed by pressing, preferably isostatic pressing, a mixture of a metal powder and hard material can be sintered at a temperature of preferably at least 800 ° C and at most 1700 ° C and arranged in the sintered state in the mold.
  • the insert body can also be produced from a sintered semifinished product, for example a sintered blank, by means of a separation method or a machining contouring process.
  • the hard material can be injected or blown in the form of hard particles separately from the die-cast metal in a die-casting mold.
  • the hard material in the form of hard material particles can be injected or injected into the die using the melt of the diecast metal, wherein the hard material particles and the diecast metal are preferably mixed in a mixing chamber upstream of the die casting mold or in a feed line upstream of the die casting mold.
  • the hard material particles are at least substantially fixed in position in the production of the processing body in the mold due to the embedding in the insert body. Accordingly, agglomeration and thus sedimentation, i. a drop, or a floating of the hard particles in the manufacture of the processing body can be avoided.
  • the hard material in the insert body produced by die casting can be at least partially encapsulated by the diecast metal as at least one hard material body and the diecast metal at least partially penetrate into cavities of the hard material body.
  • the hard material body may be formed prior to die casting by pressing or sintering hard material.
  • the hard material body can be inserted into the die-casting mold and finally partially or completely encapsulated by the die-cast metal.
  • Another aspect of the invention relates to a method for repairing a processing body according to the invention.
  • a welding material is welded to the functional surface of the processing body, the welding material comprising at least a metal and a hard material.
  • a worn processing body can be restored at least temporarily by simple means. In this way, the period until replacement of the worn processing body can be bridged cost by a new processing body.
  • the metal of the insert body and the metal of the weld material are at least substantially equal in composition. They advantageously have the same or for a fixed weld sufficiently close together melting temperatures. It is advantageous if the welding material including its hard material has the same or approximately the same composition as the metal-hard material mixture that forms the insert body, including the hard material the welding material of the composition and the proportion after the hard material fraction of the insert body at least largely corresponds.
  • the welding material can be applied to the functional or wear surface by welding a welding wire.
  • the welding wire may have a material composition similar or equal to that of the insert body.
  • the welding wire may be formed of a ceramic particle core, which is coated with a metal.
  • the particles of the ceramic core may preferably be at least one carbide of a carbide former selected from the group consisting of Si, Cr, W, Mo, V, Nb, Ti, Zr, Ta and Hf, or contain at least one such carbide or several different carbides.
  • a metal casting 1 is shown in a cross section, which is a Mahlplattensegment for a grinder for crushing granular materials, such as coal, lime, clinker or cement raw meal is.
  • the metal casting 1 can be used as a cylindrical ring segment, such as in Fig. 3 represented metal casting specimens be formed.
  • a casting as a full cylinder ring or any other shape of the grinding media is conceivable.
  • the casting takes place statically under gravity in a casting mold with an overhead feeder 5.
  • the metal cast body 1 has an end face which forms a plane functional or wearing surface 2, a composite material in a uniform thickness over the entire functional surface layer 3 of about 50 mm layer thickness on.
  • the composite of this layer 3 consists of a plurality of closely juxtaposed insert bodies 7 (FIG. Fig. 2 ), which are embedded in a solidified Gusskamatrix 4 and in combination with the Gussskamatrix 4 form the functional area 2.
  • the cast carrier matrix 4 is formed, for example, by the material GX300CrNiSi9-5-2.
  • Table 2 in addition to this material further particularly preferred materials for the Gussharimatrix 4 of the embodiment and any other metal castings according to the invention are given.
  • Table 2 Cast Carrier Matrix Materials Material Surname Material number (DIN 12513: 2001 Structure / composition GX260NiCr4-2 / Ni-Hard 2 EN-GJN-HV520 Martensite / perlite with GX330NiCr4-2 EN-GJN-HV550 Carbides of the form FE 3 C and M 23 C 6 GX300CrNiSi9-5-2 Ni-Hard 4 EN-GJN-HV600 Martensite / Carbides the form M 23 C 6 and M 7 C 3 with fractions of austenite GX260Cr11 Cast iron with EN-GJN- Martensite / GX300CrMo15-3 high HV600 (XCr11) Restaustenit / partially GX260CrMoNi15-2-1 chromium EN-GJN- perlite GX260CrMoNi20-2-1 HV600 (XCr14) Carbides of the form GX260Cr27 EN-GJN- M
  • Fig. 2 shows a ring-segment-shaped mold 6 from above, at the bottom surface of a plurality of insert bodies 7 is arranged close to each other.
  • the manufacture of the insert body 7 is described below by way of examples.
  • the insert bodies 7 are fastened in this arrangement with shaped nails on the bottom surface of the casting mold 6.
  • For the casting of the specimen exactly cuboid insert body 7 were used.
  • the shape of the functional surface 2 of the metal casting 1 exactly adapted insert body 7 can be used.
  • the composite material layer 3 may also be formed by a single, homogeneous insert body 7.
  • the insert bodies 7 may preferably have passages 14, in particular in such a way that the passages 14 extend conically towards the functional surface 2 of the insert body 7 ( Fig. 7 ).
  • the passages 14 may be arranged offset to one another in a longitudinal direction A and a transverse direction B of the functional surface 2.
  • a cross section of the insert body 7 is continuously changed by the cone-like Druch Vietnamese 14.
  • Fig. 3 shows the cast specimen after removal from the mold 6.
  • the specimen has been ground in the region of a ring segment surface 8.
  • the surface of the specimen formed by the composite material was extremely difficult to grind.
  • the removal was mainly in the grinding wheel and not on the specimen, which indicates a very high resistance to wear of the specimen.
  • a first step I is a mixture of 30 wt .-% steel powder 21, in particular sintered steel, and 70 wt .-% ceramic hard particles 10, which preferably have a carbide content of 50 to 100 wt .-%, for example SiC, in a mold 22 pressed to a green compact of the insert body 7 (s. Fig. 8 ).
  • the pressing can be carried out at elevated temperature.
  • the steel powder 21 preferably has a grain size of 100 .mu.m, whereas the hard material particles 10 have a maximum extent of preferably at most 5000 .mu.m.
  • the green compact of the insert body 7 can be pre-sintered in an optional second step II at 200-300 ° C.
  • the green compact of the insert body 7 can be pre-pressed isostatically in step II.
  • the green body of the insert body 7 in the third step III at a temperature of greater than 1000 ° C hot isostatically pressed (HIP) or sintered.
  • the hard material particles 10 have a maximum extent of preferably at most 5000 ⁇ m.
  • the injection or injection of the cast iron and the hard material particles 10 may be spaced apart from each other or at the same time, which is advantageously provided for the most uniform possible mixing in the die 15.
  • the liquid cast iron and the hard material particles 10 can be injected or blown into the die casting mold 15 via separate, preferably spaced, supply lines 16, 17 ( Fig. 9 ).
  • the leads 16, 17 can also be arranged directly next to each other ( Fig. 10 ).
  • the liquid cast iron and the hard particles 10 may be injected as a mixture into the die 15.
  • the mixing of the molten cast iron and the hard material particles 10 may take place in a mixing chamber 18 (FIG. Fig. 11 ) or in one of the die 15 preceded lead portion 19 of a branched lead 20 (FIG. Fig. 12 ) respectively.
  • a mixing chamber 18 FIG. Fig. 11
  • a branched lead 20 FIG. Fig. 12
  • the porous ceramic body 24 may have a plurality of macroscopic cavities 26 in addition to or as an alternative to the pores. Like from the Fig. 13 can be seen, the macroscopic cavities 26 may be formed as a cone-like passages.
  • the die 15 Prior to die casting, the die 15 can be preheated to a temperature of 300-500 ° C. Die casting is carried out by injection of cast iron at a temperature of 1200-1400 ° C through a supply line 28th
  • the metal casting 1 according to a first exemplary embodiment is shown with a plurality of insert bodies 7 embedded in the cast carrier matrix 4.
  • the insert bodies 7 were produced in a pressing and sintering process according to Example 1.
  • the hard material particles 10 are distributed essentially uniformly in the metallic sintered structure 11 of each individual insert body 7.
  • the Fig. 5 shows the metal casting 1 according to a second embodiment with a plurality of embedded in the Guschiematrix 4 insert bodies 7, which have been prepared in a die-casting process according to Example 2. Also in the die-cast matrix 12 of each individual insert body 7, the hard material particles 10 are distributed substantially uniformly.
  • the insert bodies 7 had a high dimensional stability during pouring with the cast carrier matrix 4. A segregation, d. H. Sedimentation or floating of hard material particles 10 could not be observed.
  • a metal cast body 1 is shown, which is worn after a longer period of use on its functional surface 2.
  • the worn metal cast body 1 has been restored in a repair process in which a welding material 13 has been welded onto the previous functional or wearing surface 2.
  • the welding material 13 has a composition adapted to the metal-hard material mixture of the insert bodies 7, preferably the same composition as the metal-hard material mixture of the insert bodies 7.

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  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
EP20110187295 2010-11-03 2011-10-31 Corps de traitement pour le broyage d'un matériau de chargement Withdrawn EP2450132A2 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3216543A4 (fr) * 2014-10-24 2018-07-11 BYD Company Limited Corps composite cermet et son procédé de préparation
BE1027444B1 (fr) * 2020-02-11 2021-02-10 Magotteaux Int Piece d'usure composite
RU2781511C2 (ru) * 2020-02-11 2022-10-12 Маготто Интернасьональ С.А. Композитная изнашиваемая деталь

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017093062A1 (fr) 2015-12-03 2017-06-08 Wolfgang Mock Gmbh Ensemble meule pour un broyeur à disques pour le broyage de matière à broyer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122886B4 (de) 2001-05-11 2006-09-14 Shw Casting Technologies Gmbh Bearbeitungskörper mit eingegossenem Hartstoffkörper zum Zerkleinern eines Aufgabeguts

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122886B4 (de) 2001-05-11 2006-09-14 Shw Casting Technologies Gmbh Bearbeitungskörper mit eingegossenem Hartstoffkörper zum Zerkleinern eines Aufgabeguts

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3216543A4 (fr) * 2014-10-24 2018-07-11 BYD Company Limited Corps composite cermet et son procédé de préparation
US10940532B2 (en) 2014-10-24 2021-03-09 Byd Company Limited Metal-ceramic composite structure and fabrication method thereof
BE1027444B1 (fr) * 2020-02-11 2021-02-10 Magotteaux Int Piece d'usure composite
WO2021160381A1 (fr) * 2020-02-11 2021-08-19 Magotteaux International S.A. Piece d'usure composite
RU2781511C2 (ru) * 2020-02-11 2022-10-12 Маготто Интернасьональ С.А. Композитная изнашиваемая деталь
US11534822B2 (en) 2020-02-11 2022-12-27 Magotteaux International S.A. Composite wear part

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