EP2956561B1 - Metal matrix composite useful as wear parts for cement and mining industries - Google Patents

Metal matrix composite useful as wear parts for cement and mining industries Download PDF

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Publication number
EP2956561B1
EP2956561B1 EP14707106.2A EP14707106A EP2956561B1 EP 2956561 B1 EP2956561 B1 EP 2956561B1 EP 14707106 A EP14707106 A EP 14707106A EP 2956561 B1 EP2956561 B1 EP 2956561B1
Authority
EP
European Patent Office
Prior art keywords
metal matrix
ceramic
matrix composite
tic
metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14707106.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2956561A1 (en
Inventor
Ufuk BASMACI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amincem SA
Original Assignee
Amincem SA
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Filing date
Publication date
Application filed by Amincem SA filed Critical Amincem SA
Publication of EP2956561A1 publication Critical patent/EP2956561A1/en
Application granted granted Critical
Publication of EP2956561B1 publication Critical patent/EP2956561B1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • C22C33/0228—Using a mixture of prealloyed powders or a master alloy comprising other non-metallic compounds or more than 5% of graphite
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C22C1/1057—Reactive infiltration

Definitions

  • the present invention generally relates to cast metal matrix composites, uses thereof and methods for the preparation thereof.
  • US 2008/102300 A1 relates to metal matrix ceramic composite (MMCC) wear-parts comprising a wearing portion formed by a ceramic cake impregnated by metal.
  • the ceramic cake comprises ceramic grains and carbide grains.
  • the invention also relates to a method for manufacturing the wear-parts.
  • the invention further describes a grinding roll and a table liner for a vertical mill each comprising a metal matrix ceramic composite wear part(s) of the invention.
  • the present invention aims to provide a reinforced cast metal matrix composite useful as wear parts for cement and mining industries.
  • the present invention also intends to provide wear parts showing an extended life service with high production rates while having low production costs.
  • the cast metal matrix composite according to the present invention comprises two distinct parts namely:
  • the metal matrix composite according to the present invention is prepared by a casting process.
  • a casting process offers several advantages since it is economical and easy to implement.
  • the formation of TiC within the ceramic cakes occurs during the casting process namely during the pouring step of the metal matrix .
  • the addition of the melt metal matrix upon the ceramic cakes leads to the formation of TiC within the ceramic cakes.
  • titanium and carbon are very reactive components and lead to the production of TiC when they are mixed at temperatures above about 1100°C.
  • the particles of TiC obtained show a diameter/size of inferior or equal to about 30 microns. Furthermore, these particles are homogenously distributed within the metal matrix.
  • the formation of the TiC particles leads to an increase in strength, strain and hardness of the material obtained, which in turn allows improving its service lifespan and its wear resistance.
  • the cast metal matrix according to the present invention comprises:
  • the in situ reaction for producing TiC occurs only at the time the metal matrix comprising ferrous metal and TiC is poured onto the ceramic cakes.
  • the metal matrix comprising the ferrous metal and TiC infiltrates within the ceramic cakes and fills the gaps between the ceramic grains.
  • the ceramic cakes are loaded with the metal matrix. This leads to the formation of TiC within the ceramic cakes.
  • the weight of metal matrix included within the ceramic cake corresponds to four times the weight of the ceramic cake.
  • the (preformed) ceramic cakes comprise: Al 2 O 3 , ZrO 2 , FeTi, graphite and a binder.
  • the use of the colloidal silicate reduces the hygroscopic properties of the material obtained and thus avoids the increase of the moisture within the material. Indeed, this is due to the structure of the colloidal silicate which allows binding the sites which could be occupied by the water molecules. Contrary to other binders, the colloidal silicates limit the absorption of water (for example from the ambient air) by the ceramic cakes. Thus, the strength of the ceramic cakes does not decrease which prevents the formation of cracks.
  • the known processes require the use of the ceramic cakes as fast as possible. Such processes do not allow the preformation of large quantities of ceramic cakes since they cannot be stored during a sufficiently long period.
  • the use of colloidal silicate as a binder represents a preferred embodiment of the present invention with significant advantages since a large amount of ceramic cakes can be prepared well before the actual casting of the metal matrix, stored during extended periods and used as needed.
  • the quantity of graphite is comprised between 0,2 and 4wt%, preferably from 0,5wt% to 3wt% and preferably from 0,875wt% to 2,625wt% compared to the total weight of the ceramic cake.
  • the cast metal matrix composite can also comprise an additional metal, in particular a ductile metal.
  • This metal can be selected among the ductile irons.
  • such cast metal matrix composite would include one ceramic cake and two metals.
  • the ductile metal improves the toughness of the cast metal matrix composite material and allows rendering the material more resistant to shocks and breaking.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
EP14707106.2A 2013-02-18 2014-02-13 Metal matrix composite useful as wear parts for cement and mining industries Active EP2956561B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU92152A LU92152B1 (en) 2013-02-18 2013-02-18 Metal matrix composite useful as wear parts for cement and mining industries
PCT/EP2014/052837 WO2014125034A1 (en) 2013-02-18 2014-02-13 Metal matrix composite useful as wear parts for cement and mining industries

Publications (2)

Publication Number Publication Date
EP2956561A1 EP2956561A1 (en) 2015-12-23
EP2956561B1 true EP2956561B1 (en) 2019-11-27

Family

ID=47739436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14707106.2A Active EP2956561B1 (en) 2013-02-18 2014-02-13 Metal matrix composite useful as wear parts for cement and mining industries

Country Status (6)

Country Link
EP (1) EP2956561B1 (zh)
CN (1) CN105026584B (zh)
AU (1) AU2014217875B2 (zh)
LU (1) LU92152B1 (zh)
WO (1) WO2014125034A1 (zh)
ZA (1) ZA201505284B (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108057874B (zh) * 2016-10-31 2023-03-17 张志国 一种三维网络陶瓷骨架增强体金属基复合耐材料及其制备方法
BE1027444B1 (fr) * 2020-02-11 2021-02-10 Magotteaux Int Piece d'usure composite
EP3915699A1 (fr) * 2020-05-29 2021-12-01 Magotteaux International SA Pièce d'usure composite céramique-métal
EP3915684A1 (fr) * 2020-05-29 2021-12-01 Magotteaux International SA Pièce d'usure composite
CN112872330B (zh) * 2021-01-13 2022-06-28 太原理工大学 一种空间网格状陶瓷/金属耐磨材料的制备方法
CN112872351B (zh) * 2021-01-13 2023-07-14 太原理工大学 一种混杂协同增强铁基耐磨材料的制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2258158T3 (es) * 2001-12-04 2006-08-16 Magotteaux International S.A. Piezas de fundicion con una resistencia incrementada al desgaste.
US8147980B2 (en) * 2006-11-01 2012-04-03 Aia Engineering, Ltd. Wear-resistant metal matrix ceramic composite parts and methods of manufacturing thereof
BE1018128A3 (fr) * 2008-09-19 2010-05-04 Magotteaux Int Cone de broyage pour concasseur a compression.
BE1018130A3 (fr) * 2008-09-19 2010-05-04 Magotteaux Int Materiau composite hierarchique.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
LU92152B1 (en) 2014-08-19
AU2014217875A1 (en) 2015-08-06
CN105026584B (zh) 2017-11-28
ZA201505284B (en) 2016-05-25
CN105026584A (zh) 2015-11-04
EP2956561A1 (en) 2015-12-23
WO2014125034A1 (en) 2014-08-21
AU2014217875B2 (en) 2019-06-20

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