KR950014378A - Single Crystal Manufacturing Method - Google Patents

Single Crystal Manufacturing Method Download PDF

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Publication number
KR950014378A
KR950014378A KR1019930023580A KR930023580A KR950014378A KR 950014378 A KR950014378 A KR 950014378A KR 1019930023580 A KR1019930023580 A KR 1019930023580A KR 930023580 A KR930023580 A KR 930023580A KR 950014378 A KR950014378 A KR 950014378A
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KR
South Korea
Prior art keywords
metal
single crystal
mold
melting
metal ingot
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Application number
KR1019930023580A
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Korean (ko)
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KR960005520B1 (en
Inventor
안성욱
오세창
Original Assignee
김은영
한국과학기술연구원
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Priority to KR1019930023580A priority Critical patent/KR960005520B1/en
Publication of KR950014378A publication Critical patent/KR950014378A/en
Application granted granted Critical
Publication of KR960005520B1 publication Critical patent/KR960005520B1/en

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    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B7/00—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions
    • C30B7/08—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions by cooling of the solution

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

본 발명은 진공 정밀 주조로에 의한 단결정 주물의 제조 방법에 있어서, 용융 금속이 주입된 주형을 저융점 금속용에 놓으므로써 저융점 금속이 주형의 열에 의해 녹으면서 주형의 자중으로 서서히 저융점 금속욕 속으로 침투하도록 하여 단결정 성장에 최적의 온도 구배 및 냉각 속도를 제공하는 것으로서, 수냉 냉각판을 사용하지 않고 적절한 온도 구배와 냉각 속도로 단결정 주물을 제조하는 것을 특징으로 한다.The present invention relates to a method for producing a single crystal casting by vacuum precision casting furnace, wherein a low melting point metal bath is gradually melted by the heat of the mold while the molten metal is injected into a low melting point metal. By penetrating into the inside to provide the optimum temperature gradient and cooling rate for single crystal growth, it is characterized in that the single crystal casting is produced at an appropriate temperature gradient and cooling rate without using a water cooling plate.

Description

단결정 제조방법Single Crystal Manufacturing Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 방법을 실시하기 위한 단결정 성장장치의 개략 단면도 및 그 장치의 온도구배를 나타내는 그래프이다.1 is a schematic cross-sectional view of a single crystal growth apparatus for carrying out the method of the present invention and a graph showing the temperature gradient of the apparatus.

제2도 (a) 및 제2도 (b)는 단결정 주물의 제조 방법 및 이 방법에 이용되는 스타터의 구성을 도시한 단면도.2 (a) and 2 (b) are cross-sectional views showing a method of producing a single crystal casting and the configuration of a starter used in the method.

제3도 (a) 내지 제3도 (d)는 단결정 성장용 선택기의 각종 형상을 도시한 사시도.3 (a) to 3 (d) are perspective views showing various shapes of the selector for single crystal growth.

제4도 (a) 내지 제4도 (c)는 주형이 저융점 합금으로 침지되면서 주형 내의 주물이 단결정으로 변화하는 과정을 도시한 일부 절결 단면도.4 (a) to 4 (c) are partially cutaway cross sectional views showing a process in which the casting in the mold changes to a single crystal while the mold is immersed in a low melting point alloy.

Claims (4)

진공 주조 용해로의 용해로 내부에 금속 잉곳을 장입하는 단계와, 진공 주조 용해로를 진공 상태로 감압하는 단계와, 용해로를 가열하는 금속 잉곳을 용해하는 단계와, 주형을 주입 금속의 용융 온도보다 높은 온도로 가열하는 단계와, 용해된 금속 잉곳을 가열된 주형에 주입하는 단계와, 주입된 주형을 저융점 금속욕에 올려 놓는 단계와, 저융점 금속욕이 주형의 열에 의해서 일정한 속도로 용융되면서주형의 용해된 금속이 일정한 속도로 냉각되어 단결정을 생성하는 단계와, 단결정이 성장하여 응고가완료되는 단계를 포함하는 것을 특징으로 하는 단결정 제조방법.Charging a metal ingot into the melting furnace of the vacuum casting furnace, depressurizing the vacuum casting furnace into a vacuum state, melting the metal ingot heating the furnace, and casting the mold to a temperature higher than the melting temperature of the injection metal. Heating, injecting the molten metal ingot into the heated mold, placing the injected mold in a low melting metal bath, and melting the mold while the low melting metal bath melts at a constant rate by the heat of the mold. And cooling the metal at a constant rate to produce a single crystal, and growing the single crystal to complete solidification. 제1항에 있어서, 상기 저융점 금속이 납과 알루미늄인 것을 특징으로 하는 특징으로 하는 단결정제조 방법.The method of claim 1, wherein the low melting point metal is lead and aluminum. 제1항 또는 제2항에 있어서, 상기 금속 잉곳이 철계 금속 잉곳인 것을 특지응로 하는 단결성 제조방법.The method of manufacturing a unitary body according to claim 1 or 2, wherein the metal ingot is an iron-based metal ingot. 제1항 또는 제2항에 있어서, 상기 금속 잉곳이 니켈계 금속 잉곳인 것을 특징으로 하는 단결정 제조 방법.The method for producing a single crystal according to claim 1 or 2, wherein the metal ingot is a nickel-based metal ingot. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930023580A 1993-11-08 1993-11-08 Preparation of single crystal KR960005520B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930023580A KR960005520B1 (en) 1993-11-08 1993-11-08 Preparation of single crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930023580A KR960005520B1 (en) 1993-11-08 1993-11-08 Preparation of single crystal

Publications (2)

Publication Number Publication Date
KR950014378A true KR950014378A (en) 1995-06-16
KR960005520B1 KR960005520B1 (en) 1996-04-25

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ID=19367524

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930023580A KR960005520B1 (en) 1993-11-08 1993-11-08 Preparation of single crystal

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KR (1) KR960005520B1 (en)

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Publication number Publication date
KR960005520B1 (en) 1996-04-25

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