EP2556907A2 - Herstellungsverfahren für Verbundstoffplatten aus Magnesiumlegierungen und Keramikschaum und Verbundstoffplatten - Google Patents

Herstellungsverfahren für Verbundstoffplatten aus Magnesiumlegierungen und Keramikschaum und Verbundstoffplatten Download PDF

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Publication number
EP2556907A2
EP2556907A2 EP20120468001 EP12468001A EP2556907A2 EP 2556907 A2 EP2556907 A2 EP 2556907A2 EP 20120468001 EP20120468001 EP 20120468001 EP 12468001 A EP12468001 A EP 12468001A EP 2556907 A2 EP2556907 A2 EP 2556907A2
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EP
European Patent Office
Prior art keywords
mould
ceramic foam
casting
pores
composite plates
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.)
Withdrawn
Application number
EP20120468001
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English (en)
French (fr)
Other versions
EP2556907A3 (de
Inventor
Primoz Mrvar
Jozef Medved
Franc Zupanic
Tonica Boncina
Matej Steinacher
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.)
Univerza Ljubljana v Fakulteta za Farmazijo
Original Assignee
Univerza Ljubljana v Fakulteta za Farmazijo
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 Univerza Ljubljana v Fakulteta za Farmazijo filed Critical Univerza Ljubljana v Fakulteta za Farmazijo
Publication of EP2556907A2 publication Critical patent/EP2556907A2/de
Publication of EP2556907A3 publication Critical patent/EP2556907A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/08—Shaking, vibrating, or turning of moulds

Definitions

  • the invention is from field of founding and it is related to manufacturing process of metal-matrix composite with magnesium matrix and ceramic foam as hardening phase.
  • the composite is a modern material. It consists of two or more different materials that differ in physical, mechanical and chemical properties.
  • the properties of composite materials depend upon the selection or properties of matrix and hardening phase, form, distribution and orientation of hardening phase, interactions between components on the interface and volume fraction of components.
  • the composites are divided into groups according to the material of matrix: metal-matrix composite (MMC), ceramic-matrix composite (CMC) and polymer-matrix composite (PMC).
  • MMC metal-matrix composite
  • CMC ceramic-matrix composite
  • PMC polymer-matrix composite
  • the metal-matrix composite can be hardened with particles, filaments, flakes, layers, also the interpenetrating phase composite are known where melt infiltrates into pores of hardening phase.
  • the interfaces have important influence on the properties of composites.
  • the primary role of interface is to assure a strong interconnection between matrix and hardening phase and the interface must be mechanically and thermodynamically stable.
  • the interconnection on the interface occurs with adhesion of constituents that are in close contact during manufacturing.
  • the matrix is usually liquid or it has such a viscosity that behaves similar as liquid.
  • Wetting of hardening phase with matrix is very important for good adhesion and formation of interconnection. The wetting determines extent to which the liquid will spill or spread on the surface of solid body. Good wetting in composites means that the liquid phase must spill over the hardening phase and pours overall surface irrespective of surface roughness and that at the interface may not pin-head blisters remain.
  • the wetting is possible when the viscosity of the matrix is not too large and when the free energy of the system reduces.
  • Strength of bond between liquid and solid phase is determined from the value of contact angle ⁇ and surface tension liquid ⁇ l,g which are measured experimentally.
  • the wetting dependents on more factors, for example, the wetting of ceramic with metal melt depends from: enthalpy of formation of ceramic phase (- ⁇ H ), stoichiometry, electron structure of phases, temperature, time, roughness and crystal structure.
  • the wetting at the contact angle ⁇ 0° is perfect, at ⁇ ⁇ 90° is good and at ⁇ > 90° is not the wetting.
  • the interconnection between matrix and hardening phase forms at the close contact of components of composite when the wetting or the adhesion is present. There are different types of the interconnections: mechanical, electrostatic, chemical, with mutual wettability and solving components and connection of reaction or diffusion.
  • metal-matrix composites bases on the different foundry processes or casting processes.
  • the hardening phase is mixed in the melt before casting and then the composite is ready to cast into a mould.
  • the gravity casting, low-pressure casting, pressure casting or other casting processes are used.
  • the metal-matrix composites can be formed hot or cold.
  • metal-matrix composites The most commonly used method of manufacturing metal-matrix composites is based on the mixing particles of different shapes and sizes in the melt and further casting to prepare composite. Thus, manufactured composite materials have higher mechanical properties then the matrix, but at defined content of hardening phase the mechanical properties can be reduced. The problems occur during mixing of hardening phase into the melt or their non-uniform distribution in the composite material.
  • the invention is a new manufacturing process of composite panels from magnesium alloys hardened with ceramic foam by gravity casting process.
  • the basic components are casting of magnesium alloys with different alloying elements and ceramic foams with different open porosity.
  • Different casting magnesium alloys that contain different concentrations of alloying elements: aluminium, beryllium, calcium, lithium, manganese, silicon, silver, zinc, zirconium, rare earth, etc. are used as matrix. Key characteristics of casting magnesium alloys with different alloying elements are low density about 1.7 g/cm 3 and good mechanical properties.
  • Ceramic foam with open porosity has low density and high hardness is used as hardening phase. This ceramic foam is commercial accessible and is used for filtration of melt because it is stable up to temperature of 1700 °C. Material for manufacturing of ceramic foam is based on SiC - Al 2 O 3 - SiO 2 with density of about 2.6 g/cm 3 .
  • Mould (1) ( Figure 1 ) with properly sized of getting system (2) is first made that the metal-static pressure is achieved that the melt can fill all pores of ceramic foam (3).
  • the mould consists of two parts (1a, 1b) with mould cavities (4) that represent geometry of casting after combining. Tool steel or grey cast iron are used for mould manufacturing. Wall thickness of mould is 1- to 2-times of casting thickness, sides of getting system and of mould cavity have foundry inclination from 1 to 3 °.
  • the mould is coated before the casting to prevent reactions between melt and mould. In the mould prepared this way the ceramic foam is inserted and then the mould is closed. That the melt can fill all pores of ceramic, the mould or ceramic foam must be preheated to certain temperature.
  • the preheated temperature depends on size and distribution pores of ceramic foam and is from 450 °C to 700 °C.
  • the melt of magnesium alloy is prepared by induction furnace.
  • the pouring temperature of magnesium alloys is from 650 °C to 750 °C and depends on type and amount of alloying elements.
  • the insulation cover (6) is placed on top of the mould, which acts as a feeder.
  • the mould vibrates so that the caught air from the pores of ceramic foam and the mould cavity is eliminated.
  • the vibration plate is metallic therefore, it transfers the heat from the bottom of mould very well and thus enables the directional solidification.
  • New manufacturing process enables easy production of composite plates.
  • the invention is suitable for industrial manufacturing of metal-matrix composites because the casting process is simple and inexpensive comparing with other casting methods.
  • Such composite plates are used in automotive, aircraft and military industry because composite plates have good mechanical properties, high break-through strength at low density and resistance to cutting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Ceramic Products (AREA)
EP12468001.8A 2011-04-06 2012-04-03 Herstellungsverfahren für Verbundstoffplatten aus Magnesiumlegierungen und Keramikschaum und Verbundstoffplatten Withdrawn EP2556907A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI201100124A SI23365A (sl) 2011-04-06 2011-04-06 POSTOPEK IZDELAVE KOMPOZITNIH PLOŠČ IZ MAGNEZIJEVIH ZLITIN IN KERAMIČNE PENE IN KOMPOZITNE PLOščE

Publications (2)

Publication Number Publication Date
EP2556907A2 true EP2556907A2 (de) 2013-02-13
EP2556907A3 EP2556907A3 (de) 2015-06-10

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EP12468001.8A Withdrawn EP2556907A3 (de) 2011-04-06 2012-04-03 Herstellungsverfahren für Verbundstoffplatten aus Magnesiumlegierungen und Keramikschaum und Verbundstoffplatten

Country Status (2)

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EP (1) EP2556907A3 (de)
SI (1) SI23365A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328170A (zh) * 2015-11-10 2016-02-17 西安建筑科技大学 一种加压凝固镁合金的方法
CN105328169A (zh) * 2015-09-28 2016-02-17 扬中中科维康智能科技有限公司 一种六轴向多维振动铸造平台
WO2021047148A1 (zh) * 2019-09-10 2021-03-18 浙江大学 超重力定向凝固熔铸炉装置
CN113418399A (zh) * 2021-04-29 2021-09-21 广元市林丰铝电有限公司 一种环保清洁的铝型材生产线
CN114210953A (zh) * 2021-12-17 2022-03-22 歌尔光学科技有限公司 一种镁锂-铝复合材料零部件及其制备方法和应用

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114349518B (zh) * 2022-01-11 2023-06-16 松山湖材料实验室 多孔陶瓷预制体及其制备方法、锤头及其制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US567271A (en) 1896-09-08 Auger-bit

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
JP2008260023A (ja) * 2007-04-10 2008-10-30 Mitsui Mining & Smelting Co Ltd 金属複合材料の製造方法及び金属複合材料からなる部材

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US567271A (en) 1896-09-08 Auger-bit

Non-Patent Citations (9)

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CHOI, H.; ALBA-BAENA, N.; NIMITYONGSKUL, S.; JONES, M.; WOOD, T.; SAHOO, M.; LAKES, R.; KOU, S.; LI, X.: "Characterization of hot extruded Mg/SiC nanocomposites fabricated by casting", J. MATER. SCI., vol. 46, 2011, pages 2991 - 2997, XP019883236, DOI: doi:10.1007/s10853-010-5176-y
LO, J. S. H.; CARPENTER, G. J. C., FABRICATION OF SIC-REINFORCED AZ91D MAGNESIUM BASED COMPOSITES, WOODHEAD PUBLISHING LIMITED, GOLD COAST, QUEENSLAND, AUSTRALIA, 1997, pages 688
PENG, L. M.; CAO, J. W.; NODA, K.; HAN, K. S.: "Mechanical properties of ceramic-metal composites by pressure infiltration of metal into porous ceramics", MATERIALS SCIENCE AND ENGINEERING A, vol. 374, 2004, pages 1 - 9
PRIELIPP, H.; KNECHTEL, M.; CLAUSSEN, N.; STREIFFER, S. K.; MÜLLEJANS, H.; RUHLE, M. R.; R6DEL, J. R., MATER. SCI. ENG. A, vol. 197, 1995, pages 19 - 30
SKIRL, S.; HOFFMAN, M.; BOWMAN, K.; WIEDERHORN, S., ROEDEL, J., ACTA MATER., 1998, pages 2493 - 2499
ZESCHKY J.; LO J. S. H.; SCHEFFLER M.; HOEPPEL H-W.; ARNOLD M.; GREIL P.: "Polysiloxane-derived ceramic foam for the reinforcement of Mg alloy", ZEITSCHRIFT FUR METALLKUNDE, vol. 93, no. 8, 2002, pages 812 - 818, XP001125403
ZESCHKY J; GOETZ-NEUNHOEFFER F.; NEUBAUER J.; JASON LO S. H.; KUMMER B.; SCHEFFLER M.; GREIL P.: "Preceramic polymer derived cellular ceramics", COMPOSITES SCIENCE AND TECHNOLOGY, vol. 63, no. 16, 2003, pages 2361 - 2370
ZESCHKY, J.; LO, J.; HOFNER, T.; GREIL, P.: "Mg alloy infiltrated Si-O-C ceramic foams", MATERIALS SCIENCE AND ENGINEERING A, vol. 403, 2005, pages 215 - 221, XP025304466, DOI: doi:10.1016/j.msea.2005.04.052

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328169A (zh) * 2015-09-28 2016-02-17 扬中中科维康智能科技有限公司 一种六轴向多维振动铸造平台
CN105328170A (zh) * 2015-11-10 2016-02-17 西安建筑科技大学 一种加压凝固镁合金的方法
WO2021047148A1 (zh) * 2019-09-10 2021-03-18 浙江大学 超重力定向凝固熔铸炉装置
US11951540B2 (en) 2019-09-10 2024-04-09 Zhejiang University Supergravity directional solidification melting furnace equipment
CN113418399A (zh) * 2021-04-29 2021-09-21 广元市林丰铝电有限公司 一种环保清洁的铝型材生产线
CN114210953A (zh) * 2021-12-17 2022-03-22 歌尔光学科技有限公司 一种镁锂-铝复合材料零部件及其制备方法和应用

Also Published As

Publication number Publication date
SI23365A (sl) 2011-11-30
EP2556907A3 (de) 2015-06-10

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