KR100660223B1 - Fabrication method of bulk amorphous metal plate and apparatus thereof - Google Patents

Fabrication method of bulk amorphous metal plate and apparatus thereof Download PDF

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KR100660223B1
KR100660223B1 KR1020050129214A KR20050129214A KR100660223B1 KR 100660223 B1 KR100660223 B1 KR 100660223B1 KR 1020050129214 A KR1020050129214 A KR 1020050129214A KR 20050129214 A KR20050129214 A KR 20050129214A KR 100660223 B1 KR100660223 B1 KR 100660223B1
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South Korea
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mold
plate
bulk amorphous
molten metal
body portion
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KR1020050129214A
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Korean (ko)
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남궁정
김문철
김용찬
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주식회사 포스코
재단법인 포항산업과학연구원
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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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/186—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using electric, magnetic, sonic or ultrasonic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/203—Injection pistons
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Continuous Casting (AREA)

Abstract

An equipment and a method capable of manufacturing an 1 mm or more thick metal plate having a bulk amorphous phase are provided. An equipment for manufacturing a bulk amorphous metal plate(7) comprises: a mold(3) comprising a body part(31) in which a plate forming hole(311) is formed to form a plate, and an injection part(32) for receiving molten metal to be supplied into the body part; an ultrasonic oscillator(5) for irradiating ultrasonic waves onto the body part of the mold; a piston(1) for pressurizing molten metal of the injection part to supply the molten metal into the plate forming hole of the body part; and cooling means(4) for cooling the body part. The injection part of the mold comprises an insulating coating layer(2) with a thickness of 0.1 to 1 mm to prevent initial solidification of molten metal(6).

Description

벌크 비정질 금속판재의 제조장치 및 그 제조방법 {Fabrication Method of Bulk Amorphous Metal Plate and Apparatus Thereof}Fabrication Method of Bulk Amorphous Metal Plate and its Manufacturing Method {Fabrication Method of Bulk Amorphous Metal Plate and Apparatus Thereof}

도 1은 본 발명에 부합되는 벌크 비정질 금속판재의 제조장치의 일례를 개략적으로 나타내는 정면도1 is a front view schematically showing an example of an apparatus for producing a bulk amorphous metal sheet according to the present invention.

도 2는 도 1의 벌크 비정질 금속판재의 제조장치의 측면도FIG. 2 is a side view of the apparatus for manufacturing a bulk amorphous metal sheet of FIG. 1. FIG.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 . . 피스톤 2 . . 단열 코팅층 3 . . 몰드 4 . . 냉각수단One . . Piston 2. . Insulation coating layer 3. . Mold 4. . Cooling means

5 . . 초음파 발진기 6 . . 용탕 7 . . 벌크 비정질 금속판재 5. . Ultrasonic Oscillator 6. . Molten metal 7. . Bulk amorphous metal sheet

31 . . 몸체부 32 . . 주입부 311 . . 판재성형홀31. . Body 32. . Injection section 311. . Plate Forming Hole

본 발명은 벌크 비정질 금속판재를 제조하는 장치 및 그 방법에 관한 것으로서, 보다 상세하게는 금속몰드를 사용하여 연속적으로 벌크 비정질 금속판재를 제조하는 장치 및 그 방법에 관한 것이다.The present invention relates to an apparatus and method for producing a bulk amorphous metal sheet, and more particularly, to an apparatus and method for producing a bulk amorphous metal sheet using a metal mold continuously.

벌크 비정질 합금은 기존의 결정질 합금에 비하여 결정구조가 물이나 유리와 같이 무질서하게 되어 있고 결정입계(grain boundary)가 없으므로 전자기 특성이 우수하 며, 내부에 1∼2%의 공격(free volume) 및 가열 시 초소성(super plasticity)을 나타내어 우수한 강도 및 성형성을 갖고 있는 소재이다. Bulk amorphous alloys have superior electromagnetic properties due to the disordered crystal structure like water or glass and no grain boundary than conventional crystalline alloys, and have 1 ~ 2% free volume and heating inside. It shows super plasticity and has excellent strength and formability.

벌크 비정질합금의 제조방법으로는 진공증착을 통한 박막제조, 급냉응고(rapid solidification)를 통한 스트립이나 분말을 제조하였으나, 최근에 벌크 비정질 형성능이 우수한 Pd, Zr 합금계가 개발됨으로써 칠주조(chill casting), 다이캐스팅(die casting) 공정이 적용되고 있다. As a method of manufacturing the bulk amorphous alloy, a thin film is manufactured through vacuum deposition and a strip or powder is prepared through rapid solidification. However, recently, Pd and Zr alloys having excellent bulk amorphous forming ability have been developed. Die casting process is being applied.

상기 Pd, Zr 합금계는 미국특허 제5735975호 및 일본 특개평 11-189855호에 제시되어 있고, 칠주조 및 다이캐스팅공정은 미국특허 제5896642호에 제시되어 있다.The Pd and Zr alloys are shown in US Pat. No. 5,975,975 and Japanese Patent Laid-Open No. 11-189855, and the casting and die casting process is shown in US Pat. No. 58,96642.

또한, 철계 벌크 비정질합금이 일본 특허공개 2002-80949호, 일본특개평10-102223호 및 일본 특개평11-256277호 등에 제시되어 있지만, 대부분 칠주조(chill casting)을 사용한 불연속적인 주조 기술만 제공하고 연속생산에 의한 1mm∼ 수mm이상의 판재 제조 방법은 제공하지 못하고 있는 실정이다.In addition, iron-based bulk amorphous alloys are disclosed in Japanese Patent Application Laid-Open No. 2002-80949, Japanese Patent Application Laid-Open No. 10-102223, and Japanese Patent Application Laid-Open No. 11-256277, but most of them provide only a continuous casting technique using a chill casting. However, the situation of producing a sheet material of 1 mm to several mm or more by continuous production is not provided.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 벌크 비정질 금속 판재를 연속적으로 제조할 수 있는 장치 및 방법을 제공하고자 하는데, 그 목적이 있다, The present invention is to solve the above problems, to provide an apparatus and method for continuously manufacturing a bulk amorphous metal sheet, an object thereof,

이하, 본 발명에 대하여 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated.

본 발명은 그 내부에 판재를 형성하기 위한 판재성형홀을 갖는 몸체부 및 이 몸체부로 공급되는 용융금속을 공급받는 주입부를 포함하는 몰드;The present invention provides a mold comprising a body portion having a plate forming hole therein for forming a plate therein and an injection portion supplied with molten metal supplied to the body portion;

상기 몰드의 몸체부에 초음파를 조사하는 초음파 발진기;An ultrasonic oscillator for irradiating ultrasonic waves to the body of the mold;

상기 주입부의 용융금속을 가압하여 몸체부의 판재성형홀로 공급하는 피스톤; 및A piston for pressing the molten metal of the injection portion and supplying the molten metal to the plate forming hole of the body portion; And

상기 몸체부를 냉각시키기 위한 냉각수단을 포함하는 벌크 비정질 금속판재의 제조장치에 관한 것이다.It relates to a bulk amorphous metal plate manufacturing apparatus including a cooling means for cooling the body portion.

또한, 본 발명은 그 내부에 판재를 형성하기 위한 판재성형홀을 갖는 몸체부 및 몸체부로 공급되는 용융금속을 공급받는 주입부를 포함하는 몰드, 상기 몸체부에 초음파를 조사하는 초음파 발진기, 상기 주입부의 용융금속을 가압하여 몸체부의 판재성형홀로 공급하는 피스톤, 및 상기 몸체부를 냉각시키기 위한 냉각수단을 포함하여 냉각수단수에 의하여 상기 몰드의 몸체부를 냉각시킨 상태에서 피스톤의 가압에 의하여 주입부의 용융금속을 몸체부의 판재성형홀로 공급함과 함께 초음파 발진기를 통해 50∼40,000Hz범위의 초음파를 상기 몸체부에 조사하면서 판상으로 성형하여 벌크 비정질 금속 판재를 제조하는 것을 특징으로 하는 벌크 비정질 금속판재의 제조방법에 관한 것이다.In addition, the present invention is a mold comprising a body portion having a plate forming hole for forming a plate therein and an injection portion receiving a molten metal supplied to the body portion, an ultrasonic oscillator for irradiating ultrasonic waves to the body portion, the injection portion A piston for supplying the molten metal to the plate-forming hole of the body portion, and a cooling means for cooling the body portion, and cooling the molten metal of the injection portion by pressurizing the piston while cooling the body portion of the mold by the number of cooling means. The present invention relates to a method for manufacturing a bulk amorphous metal sheet, characterized in that the bulk amorphous metal sheet is manufactured by supplying to the plate forming hole and irradiating the ultrasonic wave in the range of 50 to 40,000 Hz through the ultrasonic wave to the body. .

이하, 본 발명에 대하여 상세히 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

금속이 응고하거나 급냉을 통하여 목적하는 벌크 비정질 상을 얻기 위해서는 일반적인 연속주조에서 얻어지는 냉각속도보다는 수배 ~ 수십배의 냉각속도를 얻어야 할 필요가 있다. In order to obtain the desired bulk amorphous phase by solidifying or quenching the metal, it is necessary to obtain a cooling rate of several times to several tens of times than the cooling rate obtained in general continuous casting.

빠른 냉각속도를 얻기 위한 방법으로 응고되거나 냉각되는 시료의 용적을 작게 하는 방법을 사용하거나 냉각능과 급속냉각시간을 길게 유지하는 방법이 있다. As a method for obtaining a fast cooling rate, there is a method of reducing the volume of the sample to be solidified or cooled, or maintaining a long cooling capacity and rapid cooling time.

롤을 이용한 기존의 연속판재 주조방법에 비하여 몰드형 연속주조에서는 용탕을 일정한 크기로 오랜 시간 몰드와 강제 접촉시켜 일정시간 동안 빠른 냉각속도를 얻을 수 있고 그에 상응하게 벌크 비정질 합금의 형성능 정도에 따라 수 mm 두께까지도 벌크 비정질 상의 금속판재 형성이 가능하다. Compared with the conventional continuous plate casting method using rolls, in mold type continuous casting, molten metal is forced to contact the mold with a certain size for a long time to obtain a fast cooling rate for a certain time, and correspondingly, several mm depending on the forming ability of the bulk amorphous alloy. It is possible to form the metal plate of the bulk amorphous phase even to the thickness.

상기한 몰드형 연속주조에서는 금속판재와 몰드가 고착되거나 금속판재가 몰드를 마모시켜 간극을 형성시키고 열 전달을 방해하여 연속적인 벌크 비정질상의 금속판재를제조하는데 어려움이 있다. In the above-described mold type continuous casting, there is a difficulty in manufacturing a continuous bulk amorphous metal sheet by fixing the metal sheet and the mold or forming the gap by abrasion of the mold and preventing heat transfer.

본 발명은 이러한 문제점을 개선시킨 것으로서, 본 발명을 도면을 통해 보다 상세히 설명한다.The present invention improves this problem, the present invention will be described in more detail with reference to the drawings.

도 1 및 도 2에는 본 발명에 부합되는 벌크 비정질 금속판재 제조장치의 일례가 도시되어 있다.1 and 2 show an example of a bulk amorphous metal sheet manufacturing apparatus according to the present invention.

도 1에 나타난 바와 같이, 본 발명의 벌크 비정질 금속판재 제조장치는 판재를 형성하기 위한 판재성형홀(311)을 그 내부에 갖는 몸체부(31) 및 이 몸체부(31)로 공급되는 용융금속을 공급받는 주입부(32)를 포함하는 몰드(3), 이 몰드(3)의 몸체부(31)에 초음파를 조사하는 초음파 발진기(5), 상기 주입부(32)의 용융금속을 가압하여 몸체부(31)의 판재성형홀(311)로 공급하는 피스톤(1), 및 상기 몸체부(31)를 냉각시키기 위한 냉각수단(4)을 포함한다.As shown in Figure 1, the bulk amorphous metal sheet manufacturing apparatus of the present invention is a molten metal supplied to the body portion 31 and the body portion 31 having a plate forming hole 311 therein for forming a plate material therein A mold (3) including an injection portion (32) receiving a supply, an ultrasonic oscillator (5) for irradiating ultrasonic waves to the body portion (31) of the mold (3), and pressing the molten metal of the injection portion (32) by And a piston (1) for supplying the plate forming hole (311) of the body portion (31), and cooling means (4) for cooling the body portion (31).

상기 몰드(3)의 재질로는 냉각속도를 높이기 위하여 열전달능이 우수한 Cu-Cr, Cu-Be-Co합금계 등이 바람직하다.The material of the mold 3 is preferably Cu-Cr, Cu-Be-Co alloy system having excellent heat transfer ability in order to increase the cooling rate.

상기 몸체부(31)의 내부에 형성된 판재성형홀(311)의 폭과 높이는 도 2에도 나타난 바와 같이 제조하고자 하는 금속판재(7)의 크기 및 형상에 따른다. The width and height of the plate forming hole 311 formed in the body portion 31 depends on the size and shape of the metal plate 7 to be manufactured as shown in FIG.

상기 몰드의 몸체부(31)에는 냉각수를 순환시켜 옴체부를 냉각시키기 위한 냉각채널과 같은 냉각수단(4)이 구비되어 있다.The body portion 31 of the mold is provided with cooling means 4, such as a cooling channel, for cooling the ohmic body by circulating the cooling water.

상기 몰드의 주입부(32)에는 용탕(6)의 초기응고를 방지하기 위하여 BN과 같이 용탕의 젖음성이 약하고 단열성이 높은 물질로 0.1~1mm 두께의 코팅층(2)을 형성시키는 것이 바람직하다.In order to prevent the initial solidification of the molten metal 6 in the injection portion 32 of the mold, it is preferable to form a coating layer 2 having a thickness of 0.1 to 1 mm with a weak wettability of the molten metal and high thermal insulation, such as BN.

상기 몰드의 주입부 이외의 다른 몰드 내면 즉, 판재성형홀(311)은 별도의 코팅처리나 이형성 물질을 도포하지 않으며 용탕과 판재성형홀의 표면이 충분히 접촉되도록 한다. The inner surface of the mold other than the injection portion of the mold, that is, the plate forming hole 311 does not apply a separate coating treatment or a release agent and allows the surface of the molten metal and the plate forming hole to sufficiently contact each other.

이때, 상기 몰드 몸체부의 외부에서는 초음파 발진기(5)에 의해 초음파 에너지를 몰드 표면을 통하여 몰드 내부로 조사함으로서 몰드의 내면과 응고되는 용탕, 금속스트립 표면과의 미세진동을 일으켜 몰드 내면 즉, 판재성형홀의 표면과 금속스트립이 고착되는 문제점을 해결한다.At this time, the outside of the mold body portion by irradiating the ultrasonic energy into the mold through the ultrasonic surface oscillator 5 to the inside of the mold causing the micro-vibration of the molten metal, the metal strip surface solidified with the inner surface of the mold, that is plate molding This solves the problem of fixing the surface of the hole and the metal strip.

초음파는 물질을 뒤흔드는 힘이 강하다. 예를 들어, 물을 넣은 그릇의 아랫부분에서 초음파를 발생시키면 물보라를 만들 수 있으며, 초음파의 진로상의 매질은 부분적으로 가열되어, 그 큰 장력 때문에 물속에 작은 기포가 발생한다. Ultrasound has a strong force to shake a substance. For example, when ultrasonic waves are generated in the lower part of a vessel filled with water, a spray can be created, and the medium on the path of the ultrasonic waves is partially heated, and small bubbles are generated in the water due to the high tension.

또한, 기포가 터질 때의 압력과 기포 안의 방전 때문에 초음파를 받은 물질은 기계적인 작용을 받거나 화학변화를 일으킨다. In addition, due to the pressure when the bubble bursts and the discharge in the bubble, the ultrasonic wave-sensitive material undergoes mechanical action or chemical change.

일반적으로 인간의 가청 주파수대(20KHz)보다도 높은 주파를 가진 음파를 초음파로 정의하고 있지만 주조 공정중 초음파 또는 진동 이용영역은 수십Hz에서 수십 KHz범위에서 다양하게 이용되고 있고 Al, Mg합금과 같은 경량 비철금속에서는 수십 KHz 의 초음파를 이용 가능한 것으로 보고 있다. Generally, sound waves with frequencies higher than the human audible frequency band (20KHz) are defined as ultrasonic waves, but the ultrasonic or vibration range of the casting process is widely used in the range of several tens of Hz to several tens of KHz and lightweight nonferrous metals such as Al and Mg alloys. Sees the use of ultrasound at tens of KHz.

　　　초음파 발진기(5)에서 발생한 초음파가 금속 또는 유체를 통하여 전파 될 때 매질(재료)안에서 진동에너지가 저감하는 형상을 초음파 감쇄효과라 하며 최초 진폭 Ao의 초음파가 일정한 거리 x(m)를 진행한 뒤 Ax로 되었을 때 감쇄계수 α는, α = -log e(Ax/Ao) / x 로 정의하고 있다. When the ultrasonic wave generated from the ultrasonic oscillator 5 propagates through a metal or a fluid, the shape in which vibration energy is reduced in a medium is called an ultrasonic attenuation effect, and the ultrasonic wave of the first amplitude Ao has a constant distance x (m). In the case of Ax, the attenuation coefficient α is defined as α = -log e (Ax / Ao) / x.

일반적으로, 금속매체를 초음파가 통과하는데 감쇄효과가 적으며 사용되는 주파수 범위가 수십KHz이하의 비교적 적은 주파수의 초음파 이므로 감쇄효과가 적다. 이로서 용탕(6)과 열전달이 우수한 금속몰드(3) 사이의 충분한 접촉시간이 가능하고 빠른 냉각속도유지가 가능한 반면, 강성이 강한 벌크 비정질 금속판재와 몰드내면과의 마찰력을 감소시켜 마모현상과 고착되는 문제점을 방지하는 장점이 있다.  In general, the attenuation effect is small to the ultrasonic wave passing through the metal medium, and the attenuation effect is small since the frequency range used is a relatively small frequency ultrasonic wave of several tens of KHz or less. This allows sufficient contact time between the molten metal 6 and the metal mold 3 with excellent heat transfer and maintains a high cooling rate, while reducing friction between the rigid amorphous metal plate and the mold inner surface to reduce wear and fixation. There is an advantage to avoid the problem.

이로써 벌크 비정질 합금의 형성정도에 따라서 연속적으로 수mm두께의 벌크 비정질 금속판재(7)의 제조가 가능하게 된다.Thereby, the bulk amorphous metal plate material 7 of several mm thickness can be manufactured continuously according to the formation degree of a bulk amorphous alloy.

본 발명에서 몰드의 몸체부에 조사되는 초음파 범위는 50∼40,000Hz로 설정하는 것이 바람직한데, 그 이유는 주파수가 너무 작거나 너무 큰 경우에는 초음파 조사효과가 미약하기 때문이며, 바람직한 초음파 범위는 10,000~30,000Hz이다.In the present invention, the ultrasonic range irradiated to the body portion of the mold is preferably set to 50 ~ 40,000Hz, because the ultrasonic irradiation effect is weak when the frequency is too small or too large, the preferred ultrasonic range is 10,000 ~ 30,000 Hz.

본 발명에 따라 벌크 비정질 금속판재를 제조하는 경우에는 벌크 비정질 용융금속이 몰드내에서 판재형태로 연속적으로 응고되어 판재를 연속적으로 형성하게 되고, 형성된 판재가 몰드내를 빠져나올 때 몰드 외부에서 금속판재에 초음파를 조사하여 응고된 금속판재와 금속몰드사이에 미세진동을 일으키게 함으로써, 금속판재와 몰드 간의 마찰력을 감소시켜 벌크 비정질 금속판재가 연속적으로 형성될 수 있 게 된다.In the case of manufacturing the bulk amorphous metal sheet according to the present invention, the bulk amorphous molten metal is solidified continuously in the form of a sheet in the mold to continuously form the sheet, and when the formed sheet exits the mold, the metal sheet is outside the mold. By irradiating the ultrasonic wave to cause the micro-vibration between the solidified metal plate and the metal mold, the frictional force between the metal plate and the mold can be reduced and the bulk amorphous metal plate can be continuously formed.

본 발명에 의하면, 1mm이상의 두께, 바람직하게는 1∼4mm의 두께의 벌크 비정질 금속판재의 제조도 가능하다.According to the present invention, it is also possible to produce a bulk amorphous metal sheet having a thickness of 1 mm or more, preferably 1 to 4 mm.

이하, 실시예를 통하여 본 발명을 보다 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.

(실시예)(Example)

벌크 비정질 형성능이 우수하게 설계된 실시합금의 조성을 원자조성으로 하여 Fe69.94-C7.02-Si3.54-B4-P9.55-Cr2.11-Mo1.96-Al1.97조성비를 가지도록 혼합하고 합금을 대기중에서 유도 용해하여 용탕의 온도를 약 1010 ~ 1020℃범위로 유지하여 Cu 계 합금으로 제조된 금속몰드의 주입부에 공급하고 피스톤으로 가압하여 몰드 몸체부의 판재성형홀을 통하여 밀어낸다. The composition of the alloy alloy with excellent bulk amorphous forming ability was used as the atomic composition, and Fe 69.94 -C 7.02 -Si 3.54 -B 4 -P 9.55 -Cr 2.11 -Mo 1.96 -Al 1.97 By maintaining the temperature of the molten metal in the range of about 1010 ~ 1020 ℃ supplied to the injection portion of the metal mold made of Cu-based alloy and pressurized by a piston to push through the plate forming hole of the mold body portion.

이때 몰드의 몸체부에는 냉각수를 순환시켜 강냉을 시키고 몰드 몸체부 외부에서는 초음파 발진기를 이용하여 몰드 내부로 50~40,000Hz범위의 초음파를 조사하면서 2mm두께의 금속판재를 형성시켰다.At this time, the coolant was circulated in the body of the mold to cool the water, and the outside of the mold body was formed using a ultrasonic oscillator to form a 2 mm thick metal sheet while irradiating ultrasonic waves in a range of 50 to 40,000 Hz.

몰드내에서 냉각되는 용탕 및 응고되어 형성된 금속판재는 몰드 내면과의 고착현상이 적고 접촉거리를 최대 300mm이상 유지하여 급냉 효과를 얻을 수 있었으며, 이로 인하여 상기한 벌크 비정질 합금 조성소재를 90%이상 벌크 비정질 상을 갖는 2mm두께의 판재로 주조할 수 있음을 확인할 수 있었다.The metal plate formed by melting and solidifying the metal in the mold had little sticking phenomenon to the mold inner surface and maintained the contact distance up to 300 mm or more to obtain a quenching effect. As a result, the bulk amorphous alloy composition material was not less than 90% bulk amorphous. It was confirmed that it could be cast into a sheet of 2 mm thickness having a phase.

상기한 바와 같이, 본 발명에 의하면, 벌크 비정질 상을 갖는 두께 1mm 이상의 금속판재를 연속적으로 제조할 수 있다.As mentioned above, according to this invention, the metal plate material of thickness 1mm or more which has a bulk amorphous phase can be manufactured continuously.

Claims (3)

그 내부에 판재를 형성하기 위한 판재성형홀을 갖는 몸체부 및 이 몸체부로 공급되는 용융금속을 공급받는 주입부를 포함하는 몰드;A mold including a body part having a plate forming hole therein for forming a plate material therein and an injection part supplied with molten metal supplied to the body part; 상기 몰드의 몸체부에 초음파를 조사하는 초음파 발진기;An ultrasonic oscillator for irradiating ultrasonic waves to the body of the mold; 상기 주입부의 용융금속을 가압하여 몸체부의 판재성형홀로 공급하는 피스톤; 및A piston for pressing the molten metal of the injection portion and supplying the molten metal to the plate forming hole of the body portion; And 상기 몸체부를 냉각시키기 위한 냉각수단을 포함하는 벌크 비정질 금속판재의 제조장치Bulk amorphous metal sheet manufacturing apparatus including a cooling means for cooling the body portion 그 내부에 판재를 형성하기 위한 판재성형홀을 갖는 몸체부 및 몸체부로 공급되는 용융금속을 공급받는 주입부를 포함하는 몰드, 상기 몸체부에 초음파를 조사하는 초음파 발진기, 상기 주입부의 용융금속을 가압하여 몸체부의 판재성형홀로 공급하는 피스톤, 및 상기 몸체부를 냉각시키기 위한 냉각수단을 포함하여 냉각수단수에 의하여 상기 몰드의 몸체부를 냉각시킨 상태에서 피스톤의 가압에 의하여 주입부의 A mold including a body part having a plate forming hole for forming a plate therein and an injection part receiving molten metal supplied to the body part, an ultrasonic oscillator for irradiating ultrasonic waves to the body part, and pressurizing the molten metal of the injection part Including the piston for supplying to the plate forming hole of the body portion, and the cooling means for cooling the body portion by pressing the piston in the state of cooling the body portion of the mold by the number of cooling means 용융금속을 몸체부의 판재성형홀로 공급함과 함께 초음파 발진기를 통해 50∼40,000Hz범위의 초음파를 상기 몸체부에 조사하면서 판상으로 성형하여 벌크 비정질 금속 판재를 제조하는 것을 특징으로 하는 벌크 비정질 금속판재의 제조방법The manufacture of the bulk amorphous metal sheet material, characterized in that to supply the molten metal to the plate-forming hole of the body and to form a bulk amorphous metal sheet by forming a plate shape while irradiating the ultrasonic wave in the range of 50 ~ 40,000Hz through the ultrasonic oscillator to the body portion. Way 제2항에 있어서, 상기 초음파가 10,000∼30,000Hz범위의 주파수를 갖는 것임을 특징으로 하는 벌크 비정질 금속판재의 제조방법The method of claim 2, wherein the ultrasonic wave has a frequency in the range of 10,000 to 30,000 Hz.
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