WO2018097376A1 - Appareil de moulage électrique et sous vide permettant de mouler une feuille d'alliage amorphe - Google Patents

Appareil de moulage électrique et sous vide permettant de mouler une feuille d'alliage amorphe Download PDF

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Publication number
WO2018097376A1
WO2018097376A1 PCT/KR2016/013818 KR2016013818W WO2018097376A1 WO 2018097376 A1 WO2018097376 A1 WO 2018097376A1 KR 2016013818 W KR2016013818 W KR 2016013818W WO 2018097376 A1 WO2018097376 A1 WO 2018097376A1
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WO
WIPO (PCT)
Prior art keywords
amorphous alloy
thin plate
molding
electrode member
forming
Prior art date
Application number
PCT/KR2016/013818
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English (en)
Korean (ko)
Inventor
나영상
임가람
Original Assignee
한국기계연구원
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 한국기계연구원 filed Critical 한국기계연구원
Priority to PCT/KR2016/013818 priority Critical patent/WO2018097376A1/fr
Publication of WO2018097376A1 publication Critical patent/WO2018097376A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/025—Means for controlling the clamping or opening of the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/029—Closing or sealing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling

Definitions

  • the present invention relates to an energized vacuum forming apparatus for forming an amorphous alloy thin plate, and more particularly, to form an amorphous alloy thin plate by integrating a resistance heating method into a vacuum forming method, and to prevent leakage of electricity in the forming process,
  • the present invention relates to a current-carrying vacuum forming apparatus for forming an amorphous alloy thin plate that can secure molding reliability by uniformly heating the entire thin plate through energization.
  • Amorphous alloy means an alloy having an irregular atomic structure such as a liquid.
  • Amorphous alloys generally exhibit glass transition phenomena, and because they have thermoplastics due to a rapid decrease in viscosity in the subcooled liquid phase section between glass transition temperature and crystallization temperature, the conventional glass and plastic molding techniques can be applied to amorphous alloy molding by utilizing these characteristics. can do.
  • amorphous alloys undergo relatively fast crystallization at moldable temperature conditions, so that molding time is required to avoid crystallization at this time.
  • blow molding a well-known method among the general molding methods, is a molding method for manufacturing a synthetic beverage beverage container or cosmetic container, an automobile part bellows, and the like, and hollow hollow pipes in a molding mold having a finished product molding space.
  • the hot body that is, heating air is injected into the parison at a predetermined pressure to heat and expand the parison to be formed into the mold provided in the molding mold, and after cooling, the molding mold Opening and taking out the finished product is divided into extrusion blow molding, injection blow molding and injection stretch blow molding.
  • the conventional blow molding technique heats the specimen by an indirect heating method, so that it is difficult to shorten the molding time, so it is vulnerable to crystallization and oxidation, which is not suitable for forming the amorphous alloy. There is a problem.
  • the present invention for solving the above-mentioned problems can be formed by incorporating a resistance heating method in a vacuum molding method to form an amorphous alloy sheet, prevent the leakage of electricity during the molding process, uniformity of the entire sheet through the energization It is an object of the present invention to provide an energizing vacuum forming apparatus for amorphous alloy sheet metal molding which can ensure molding reliability by heating.
  • a molding apparatus for molding an amorphous alloy sheet comprising: a molding body having a molding space; Clamping means for holding an amorphous alloy molded thin plate positioned on an upper end of the forming body; Vacuum means for evacuating the forming space of the forming body; And an electric power applying means for directly heating the amorphous alloy molded thin plate by applying electric power to the amorphous alloy molded thin plate, thereby providing an energized vacuum forming apparatus for forming an amorphous alloy thin plate.
  • the clamping means is composed of a pair of holding members for holding the upper and lower surfaces of both edges of the amorphous alloy molded thin plate
  • the power applying means is a current supply to the electric power source and the amorphous alloy molded thin plate It may include an electrode member provided so as to, and a connection cable connected to provide electric power of the power supply source to the electrode member.
  • one of the pair of holding members may be made of an insulator made of an insulating material, and the other may be made of a conductive material to constitute the electrode member.
  • the pair of gripping members may be made of an insulator made of an insulating material, and the electrode member may be integrally formed with at least one of the pair of gripping members.
  • the gripping member in which the electrode member is integrally formed may be configured to be disposed in the energizing direction with respect to the electrode member.
  • the clamping means is composed of a pair of gripping members gripping opposite edges of the amorphous alloy molding thin plate and made of an insulating material, the electrode member is formed in the amorphous alloy molding on each side of the gripping members It may be made to be disposed on both sides of the front and back of the thin plate.
  • the electrode member has a rectangular parallelepiped shape, and the gripping pressure at which the amorphous alloy molded thin plate is held by the gripping member is set to a higher value than the contact pressure at which the electrode member contacts the amorphous alloy molded thin plate. Can be done.
  • it may further include an auxiliary conducting member electrically connected to the electrode member for assisting in energizing the amorphous alloy molded thin plate.
  • the auxiliary conducting member is formed in the form of a plate made of a conductive material, it may be configured to be in contact with the edge of the amorphous alloy molded thin plate.
  • the auxiliary conducting member is formed in the form of a plate made of a conductive material, it may be configured to be in contact with at least one of the front and back both sides of the amorphous alloy molded thin plate.
  • the upper surface of the forming body and the amorphous alloy molded thin plate is in contact with the contact surface and the clamping means provided on the forming body side and the amorphous alloy molded thin plate is provided on at least one of the contact surface to ensure airtightness It may further comprise a sealing means for.
  • the sealing means is a sealing groove formed on at least one of the upper surface of the clamping means provided on the upper surface and the molding body side of the molding body;
  • the upper portion is provided to protrude a predetermined height from the sealing groove, it may be made of a sealing member made of a material such as rubber or silicon.
  • the energizing vacuum forming apparatus for forming an amorphous alloy thin plate according to the present invention there is an effect that the amorphous alloy can be produced easily and with excellent yield through a method in which the electric resistance heating method and the vacuum forming method are fused.
  • FIG. 1 is a perspective view schematically showing an energizing vacuum forming apparatus for forming an amorphous alloy sheet according to the present invention.
  • FIG. 2 is a cross-sectional view schematically showing an energizing vacuum forming apparatus for forming an amorphous alloy sheet according to the present invention.
  • FIG. 3 is a view showing some components of an electro-vacuum fusion forming apparatus for forming a bulk amorphous alloy according to the present invention.
  • FIG. 4 is a perspective view showing an energizing vacuum forming apparatus for forming an amorphous alloy sheet with a modification of the clamping means and the electrode member constituting the power applying means according to the present invention.
  • FIG. 5 is an enlarged view of a portion “A” of FIG. 4.
  • FIG. 6 is a view showing a modification of the electrode member of the gripping member and the power applying means constituting the energizing vacuum forming apparatus for forming the amorphous alloy sheet according to the present invention.
  • FIG. 7 is a configuration diagram showing an embodiment of another embodiment of the energizing vacuum forming apparatus for forming an amorphous alloy thin plate according to the present invention.
  • FIG. 8 is a configuration diagram showing another embodiment of another embodiment of an energizing vacuum forming apparatus for forming an amorphous alloy sheet according to the present invention.
  • FIG. 9 is a view showing a molding process of the energized vacuum forming apparatus for forming an amorphous alloy sheet according to the present invention.
  • the present invention provides a molding apparatus for molding an amorphous alloy thin plate, comprising: a molding body having a molding space; Clamping means for holding an amorphous alloy molded thin plate positioned on an upper end of the forming body; Vacuum means for evacuating the forming space of the forming body; And an electric power applying means for directly heating the amorphous alloy molded thin plate by applying electric power to the amorphous alloy molded thin plate, thereby providing an energized vacuum forming apparatus for forming an amorphous alloy thin plate.
  • ... unit means a unit for processing at least one function or operation, which means hardware or software or hardware and It can be implemented in a combination of software.
  • FIGS. 1 and 2 are perspective views schematically showing an energizing vacuum forming apparatus for forming an amorphous alloy sheet according to the present invention
  • FIG. 2 is a cross-sectional view schematically showing an energizing vacuum forming apparatus for forming an amorphous alloy sheet according to the present invention
  • FIG. I s a view showing some components of an electro-vacuum fusion forming apparatus for forming a bulk amorphous alloy according to the present invention.
  • An energizing vacuum forming apparatus for forming an amorphous alloy thin plate according to the present invention is a molding apparatus for forming an amorphous alloy sheet largely, as shown in FIGS. 1 to 3, and has a molding space 101 therein, and has a bottom portion.
  • the molding space 101 of the molding body 100 may be formed of various shapes of molding spaces according to the shape of the amorphous alloy molding thin plate 1, and the vacuum hole 110 may be formed at the bottom of the molding space 101. It is composed of a plurality of distribution so that the even vacuum pressure in the action.
  • the clamping means 200 is not particularly limited as long as the clamping means 200 is configured or configured to hold a predetermined width of both symmetric edges of the amorphous alloy molded thin plate 1.
  • the clamping means 200 is composed of a pair of holding members for holding the upper and lower surfaces of both edges of the amorphous alloy molded thin plate (1).
  • the holding member of the clamping means 200 will be described later, it may be composed of a part or an electrode of the power applying means 400. This will be described in detail below.
  • the vacuum means 300 has a vacuum line 310, one end of which communicates with the vacuum hole 110 of the molding space 101 and the other end of which extends outward of the molding body 100, and the vacuum line.
  • the power applying means 400 includes a power supply source 410, an electrode member 420 (see FIGS. 7 to 12) provided to conduct current to the amorphous alloy molding thin plate 1, and the power supply source ( And a connecting cable 430 connected to provide power of the 410 to the electrode member 420.
  • the electrode member 420 is made of a highly conductive material such as chromium or copper, and the corresponding electrode member 420 is connected to the positive electrode and the negative electrode of the power supply 410 so that a voltage is applied to supply a current.
  • the contact surface and / or the forming body 100 is in contact with the top of the forming body 100 and the amorphous alloy forming plate (1)
  • the sealing means 510 for further securing airtightness is further provided at the contact surface between the clamping means 200 and the amorphous alloy molded thin plate 1 provided on the side.
  • the sealing means 510 is a sealing groove formed on the upper surface of the clamping means 200 provided on the upper end and / or the molding body 100 side of the molding body 100, and is mounted on the sealing groove, the top is It is provided to protrude a predetermined height from the sealing groove, and consists of a sealing member made of a material such as rubber or silicon.
  • the electrode member 420 constituting the clamping means 200 and the power applying means 400 is an amorphous alloy, as shown in FIG. It consists of a pair of holding members for holding the upper and lower surfaces of both edges of the molded thin plate (1), one of the holding members located on the upper side and the lower side of the amorphous alloy molded thin plate (1) is an insulator of insulating material The other is made of a conductive material and may be configured to function as the electrode member 420.
  • FIG. 4 is a perspective view showing an energizing vacuum forming apparatus for forming an amorphous alloy sheet having a modification of the clamping means and the electrode member constituting the power applying means according to the present invention, and FIG. It is an enlarged view.
  • the clamping means 200 grips the upper and lower surfaces of both edges of the amorphous alloy molded thin plate 1 and consists of a pair of gripping members made of an insulator having insulation, and the upper side and the bottom of the amorphous alloy molded thin plate 1. Any one of the gripping members positioned on the side is formed by integrally forming the electrode member 420 made of a conductive material.
  • the electrode member 420 integrally formed with the gripping member is made of a highly conductive material such as chromium or copper, and each electrode member 420 on both sides is connected to the positive electrode and the negative electrode of the power supply 410. Voltage is applied to impart a current.
  • the gripping member 200 in which the electrode member 420 is integrally formed, is a heat insulating member and is disposed in an integral contact with the electrode member 420 to assist in reinforcing its strength.
  • the holding member 200 in which the electrode member 420 is integrally formed may be disposed in the conducting direction with respect to the electrode member 420.
  • the gripping member 200 is made of a material capable of sufficiently securing (clamping) the amorphous alloy molded thin plate 1 and a material capable of securing heat resistance to the temperature of the amorphous alloy molded thin plate 1 to be heated.
  • the electrode member 420 and the holding member 200 which is a heat insulating member are integrally formed, and the holding by the electrode member 420 is carried out so that even if the temperature of the amorphous alloy molded thin plate 1 rises, the holding member which is a heat insulating member
  • the member 200 can suppress the heat transfer caused by the temperature difference between the amorphous alloy molded thin plate 1 and the electrode member 420.
  • the thickness in the energization direction of the electrode member 420 that is, the area of the contact portion between the electrode member 420 and the amorphous alloy molded thin plate 1 is made as small as possible.
  • the width of the electrode member 420 can be reduced as much as possible by reinforcing the electrode member 420 with the gripping member 200 made of a heat insulating material. Thereby, the amount of heat radiation to the electrode member 420 in the amorphous alloy molded thin plate 1 after heating can be reduced as much as possible without reducing the strength of the electrode member 420 itself.
  • region of the amorphous alloy molded thin plate 1 can fully be ensured and it can contribute to a yield improvement.
  • FIG. 6 is a view showing a modification of the electrode member of the gripping member and the power applying means constituting the energizing vacuum forming apparatus for forming the amorphous alloy sheet according to the present invention.
  • the clamping member 200 which is the clamping means, is configured to grip opposite edges of the amorphous alloy molded thin plate 1, and the electrode member 420 is formed in each of the holding members 200. On one side is made to be disposed above and below the amorphous alloy molded thin plate (1). That is, the electrode member 420 is composed of a lower electrode member 421 positioned below the amorphous alloy molded thin plate 1 and an upper electrode member 422 positioned above the amorphous alloy molded thin plate 1.
  • the lower electrode member 421 and the upper electrode member 422 have a rectangular parallelepiped shape, and have a constant upper and lower dimension (width: length in the Z direction) and a constant left and right dimension (thickness: length in the X direction, which is a length in the energizing direction). It is made to have a front and rear dimension larger than the front and rear dimensions (length: length in the Y direction) of the amorphous alloy molded thin plate (1).
  • the holding member 200 and the electrode members 420 (421, 422) of the present invention have a holding pressure at which the amorphous alloy molded thin plate 1 is held by the holding member 200. It is characterized in that it is set to a value higher than the contact pressure in contact with the alloy molded thin plate (1).
  • the pressure at which the gripping member 200 presses the amorphous alloy molded thin plate 1 is caused by the upper and lower electrode members 421 and 422 to heat the amorphous alloy heated when the current is applied to the amorphous alloy formed thin plate 1. It is set to a relatively high value which can suppress the deformation of the molded thin plate 1. That is, the gripping member 200 is deformed by the amorphous alloy molded thin plate 1 by deforming the amorphous alloy molded thin plate 1 that is heated when the current is energized with respect to the amorphous alloy molded thin plate 1 by the electrode members 421 and 422. The amorphous alloy molded thin plate 1 is fixed (clamped) by pressing the amorphous alloy formed thin plate 1 at a pressure such that the contact surface of the electrode members 421 and 422 can be reduced.
  • FIGS. 7 and 8 are block diagram showing an embodiment of another embodiment of the energizing vacuum forming apparatus for forming an amorphous alloy sheet according to the present invention
  • Figure 8 is a current carrying vacuum forming for amorphous alloy sheet forming according to the present invention It is a block diagram which shows another embodiment of another example of an apparatus.
  • Another embodiment of the energizing vacuum forming apparatus for forming an amorphous alloy thin plate according to the present invention is electrically connected to the electrode member 420, as shown in Figure 7 capable of uniformly energizing the amorphous alloy forming thin plate (1)
  • the auxiliary conducting member 610 is further included.
  • the auxiliary conducting member 610 is formed in the form of a plate made of a highly conductive material such as chromium or copper, and is configured to be in contact with the edge of the amorphous alloy molded thin plate 1 as shown in FIG. 7, or as shown in FIG. 8. As described above, the amorphous alloy molded thin plate 1 is configured to be in contact with at least one of both sides.
  • the electrode member 420 is interposed between the gripping members 200, which are clamping means.
  • the electrode members 420 may be formed on both sides or one side of the amorphous alloy molded thin plate 1. It is not specifically limited if it is the structure which can be connected to the auxiliary electricity supply member 610, and can make it energize so that an electric current may flow.
  • FIG. 9 is a view showing a molding process of the energized vacuum forming apparatus for forming an amorphous alloy sheet according to the present invention.
  • the amorphous alloy molding thin plate 1 In the state where the amorphous alloy molding thin plate 1 is hermetically clamped by the clamping means 200 at the upper end of the forming body 100, when power is applied by the power applying means 400, the amorphous material is applied through the electrode member 420. As the current is applied to the alloy molding thin plate 1 and heated, the amorphous alloy molding thin plate 1 is heated to some extent softer than the initial stage. In this state, when the vacuum pressure is applied to the forming body 100 by the vacuum means 300, the amorphous alloy forming thin plate 1 is sucked into the forming space 101 of the forming body 100 by the vacuum pressure. The molding is completed in a shape that the molding space 101 has, and the molding is completed by lifting the vacuum to release the molded body by the clamping means and taking it out.
  • the amorphous alloy can be easily produced in an excellent yield through a method in which the electric resistance heating method and the vacuum forming method are fused.
  • the present invention is used as a molding apparatus for forming an amorphous alloy thin plate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

La présente invention se rapporte à un appareil de moulage électrique et sous vide permettant de mouler une feuille d'alliage amorphe, l'appareil pouvant fonctionner dans le schéma de convergence d'un chauffage par résistance électrique et d'un moulage sous vide pour mouler un alliage amorphe, empêcher la fuite de courants électriques et de gaz dans le processus de moulage et assurer une fiabilité de moulage par application uniforme d'électricité. La présente invention porte sur un appareil de moulage électrique et sous vide permettant de mouler une feuille d'alliage amorphe, l'appareil comprenant : un corps de moulage comprenant un espace de moulage ; un moyen de serrage destiné à maintenir une feuille de moulage d'alliage amorphe située à l'extrémité supérieure du corps de moulage ; un moyen de mise sous vide permettant de mettre sous vide l'espace de moulage du corps de moulage ; et un moyen d'application d'énergie permettant d'appliquer de l'énergie à la feuille de moulage d'alliage amorphe pour chauffer la feuille de moulage d'alliage amorphe.
PCT/KR2016/013818 2016-11-28 2016-11-28 Appareil de moulage électrique et sous vide permettant de mouler une feuille d'alliage amorphe WO2018097376A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2016/013818 WO2018097376A1 (fr) 2016-11-28 2016-11-28 Appareil de moulage électrique et sous vide permettant de mouler une feuille d'alliage amorphe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2016/013818 WO2018097376A1 (fr) 2016-11-28 2016-11-28 Appareil de moulage électrique et sous vide permettant de mouler une feuille d'alliage amorphe

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WO2018097376A1 true WO2018097376A1 (fr) 2018-05-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3031743B2 (ja) * 1991-05-31 2000-04-10 健 増本 非晶質合金材の成形加工方法
JP3817805B2 (ja) * 1997-01-08 2006-09-06 Ｊｓｒ株式会社 成形用金型
CN1915553A (zh) * 2006-09-05 2007-02-21 祝志强 利用液体压力直接成型金属制品的方法
KR20130100076A (ko) * 2013-08-05 2013-09-09 현대하이스코 주식회사 강철 성형체 제조 방법
KR101353592B1 (ko) * 2011-11-08 2014-01-27 재단법인 포항산업과학연구원 비정질 스트립 성형 방법 및 성형 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3031743B2 (ja) * 1991-05-31 2000-04-10 健 増本 非晶質合金材の成形加工方法
JP3817805B2 (ja) * 1997-01-08 2006-09-06 Ｊｓｒ株式会社 成形用金型
CN1915553A (zh) * 2006-09-05 2007-02-21 祝志强 利用液体压力直接成型金属制品的方法
KR101353592B1 (ko) * 2011-11-08 2014-01-27 재단법인 포항산업과학연구원 비정질 스트립 성형 방법 및 성형 장치
KR20130100076A (ko) * 2013-08-05 2013-09-09 현대하이스코 주식회사 강철 성형체 제조 방법

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