KR970026975A - Method for manufacturing preform for metal composite material - Google Patents

Method for manufacturing preform for metal composite material Download PDF

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Publication number
KR970026975A
KR970026975A KR1019950045337A KR19950045337A KR970026975A KR 970026975 A KR970026975 A KR 970026975A KR 1019950045337 A KR1019950045337 A KR 1019950045337A KR 19950045337 A KR19950045337 A KR 19950045337A KR 970026975 A KR970026975 A KR 970026975A
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South Korea
Prior art keywords
silicone oil
preform
reinforcement
ceramic
composite material
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KR1019950045337A
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Korean (ko)
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KR100213316B1 (en
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이규창
오상록
Original Assignee
김종진
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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Priority to KR1019950045337A priority Critical patent/KR100213316B1/en
Publication of KR970026975A publication Critical patent/KR970026975A/en
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Publication of KR100213316B1 publication Critical patent/KR100213316B1/en

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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62675—Thermal treatment of powders or mixtures thereof other than sintering characterised by the treatment temperature
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/526—Fibers characterised by the length of the fibers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5264—Fibers characterised by the diameter of the fibers
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6567—Treatment time
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/658—Atmosphere during thermal treatment

Abstract

수성 분산매질 및 바인더를 사용하지 않고 금속 복합재료 제조용 예비성형체 제조하는 방법이 제공된다.A method of making a preform for the production of metal composites without the use of an aqueous dispersion medium and a binder is provided.

세라믹 강화재를 실리콘 오일에 분산시킨 다음, 흡인여과, 건조 및 열처리함으로써 실리콘 오일의 실리콘이 열처리 동안 대기중의 산소와 반응하여 SiO2를 형성하게 되고 이 SiO2형성에 의해 강화재로 이루어진 예비성형체의 강도를 얻을 수 있다.Ceramic obtained by dispersing the reinforcement in the silicone oil, and then suction filtration, dried and heat-treated by being formed of SiO 2 by reaction with oxygen in the silicon is waiting for a heat treatment of the silicone oil, the strength of the preform made of a reinforcing material by the SiO 2 to form Can be obtained.

물, 알콜등 수성 분산매질을 사용하는, 또한 강도 확보를 위해 무기질 바인더를 사용하던 종래의 방법에 비하여 공정이 간단할 뿐만 아니라 제조원가에도 기여할 수 있다.Compared to the conventional method using an aqueous dispersion medium such as water or alcohol and using an inorganic binder to secure strength, the process is simple and contributes to manufacturing cost.

Description

금속 복합재료 제조용 예비 성형체 제조방법Method for manufacturing preform for metal composite material

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 종래의 예비성형체 제조방법을 도시한 공정 개략도.1 is a process schematic diagram showing a conventional method for producing a preform.

제2도는 통상의 예비성형체 제조장치의 개략단면도.2 is a schematic cross-sectional view of a conventional preform manufacturing apparatus.

제3도는 본 발명에 의한 예비성형체 제조방법을 도시한 공정 개략도.3 is a process schematic diagram showing a method for producing a preform according to the present invention.

제4도 (a)는 본 발명의 방법에 따라 제조된 예비성형체의 내부조직을 보여주는 주사전자 현미경 사진, (b)는 종래방법에 따라 제조된 예비성형체의 내부조직을 보여주는 주사전자 현미경 사진.Figure 4 (a) is a scanning electron micrograph showing the internal structure of the preform prepared according to the method of the present invention, (b) is a scanning electron micrograph showing the internal structure of the preform prepared according to the conventional method.

Claims (4)

세라믹 강화재를 실리콘 오일에 혼합하여 세라믹 강화재의 실리콘 오일분산물을 형성하는 단계 ; 상기 실리콘 오일 분산물을 흡인여과하여 실리콘 오일분산물로부터 실리콘 오일을 제거하여 강화재 응집체를 형성하는 단계 ; 상기 실리콘 오일이 제거된 세라믹 강화제 응집체를 원하는 부피분률로 조절하고나서 건조시켜 건조 예비성형체를 제조하는 단계 ; 및 상기 건조예비 성형체의 내부에 함유된 잔류 실리콘 오일중의 실리콘이 대기 중의 산소와 반응하여 SiO2를 형성하도록 상기 건조 예비성형체를 대기중에서 열처리하는 단계 ; 를 포함함을 특징으로 하는 금속 복합재료용 예비성형체 제조방법.Mixing the ceramic reinforcement with silicone oil to form a silicone oil dispersion of the ceramic reinforcement; Suction filtration of the silicone oil dispersion to remove silicone oil from the silicone oil dispersion to form a reinforcement aggregate; Preparing a dry preform by controlling the aggregate of the ceramic reinforcing agent from which the silicone oil has been removed to a desired volume fraction and then drying it; And heat treating the dry preform in air so that the silicon in the residual silicone oil contained in the dry preform reacts with oxygen in the air to form SiO 2 . Method for producing a preform for a metal composite material comprising a. 제1항에 있어서, 상기 실리콘 오일에 분산되는 세라믹 강화재의 량은 실리콘 오일 1리터(L)당 중량비로 0.5-2%임을 특징으로 하는 방법.The method of claim 1, wherein the amount of ceramic reinforcement dispersed in the silicone oil is 0.5-2% by weight per liter of silicone oil. 제1항 또는 제2항에 있어서, 상기 건조 단계는 질소 분위기하에서 150-180℃ 온도에서 2-4시간 수행됨을 특징으로 하는 방법.The method of claim 1 or 2, wherein the drying step is performed for 2-4 hours at a temperature of 150-180 ° C under a nitrogen atmosphere. 제1항 또는 제2항에 있어서, 상기 열처리는 800-850℃ 온도에서 20-40분간 수행됨을 특징으로 하는 방법.The method of claim 1 or 2, wherein the heat treatment is performed for 20-40 minutes at a temperature of 800-850 ℃. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950045337A 1995-11-30 1995-11-30 Process for producing complex materials KR100213316B1 (en)

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KR1019950045337A KR100213316B1 (en) 1995-11-30 1995-11-30 Process for producing complex materials

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Application Number Priority Date Filing Date Title
KR1019950045337A KR100213316B1 (en) 1995-11-30 1995-11-30 Process for producing complex materials

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KR970026975A true KR970026975A (en) 1997-06-24
KR100213316B1 KR100213316B1 (en) 1999-08-02

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