WO2020235792A1 - Ensemble moule à couler centrifuge - Google Patents

Ensemble moule à couler centrifuge Download PDF

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Publication number
WO2020235792A1
WO2020235792A1 PCT/KR2020/003583 KR2020003583W WO2020235792A1 WO 2020235792 A1 WO2020235792 A1 WO 2020235792A1 KR 2020003583 W KR2020003583 W KR 2020003583W WO 2020235792 A1 WO2020235792 A1 WO 2020235792A1
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WO
WIPO (PCT)
Prior art keywords
mold
mold assembly
molten metal
centrifugal casting
support
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PCT/KR2020/003583
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English (en)
Korean (ko)
Inventor
이안수
Original Assignee
이인자
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Publication date
Application filed by 이인자 filed Critical 이인자
Publication of WO2020235792A1 publication Critical patent/WO2020235792A1/fr

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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
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
    • B22D13/101—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis

Definitions

  • the present invention relates to a mold assembly, and more particularly to a centrifugal casting mold assembly.
  • casting refers to the work of making a product in a desired shape by removing the mold after solidifying by injecting a molten metal material, that is, a molten metal into a mold, and in order to efficiently proceed with such a casting operation.
  • a molten metal material that is, a molten metal into a mold
  • Each casting process can be classified into sand casting, mold casting, precision casting, etc., depending on the type of mold, and in the case of mold casting, gravity casting, low pressure casting, and/or low pressure casting, depending on how the molten metal is injected into the cavity of the mold. It can be classified into high pressure casting, high vacuum casting, centrifugal casting, etc.
  • the centrifugal casting method is a method of injecting molten metal by generating centrifugal force by rotating the mold.
  • the centrifugal casting method rotates the mold at high speed when the molten metal is injected and solidified, and is molded using this rotating centrifugal force, and the molten metal is introduced and distributed by the centrifugal force rotating at high speed in the mold to prevent poor fluidity and at the same time
  • This smooth, high pressure applied to the molten metal so the structure of the cast product is dense and there are no pores, so this method is widely used.
  • a molded article having a uniform thickness and high quality can be manufactured only when the molten metal is quickly and uniformly supplied over the entire surface of the mold and the molten metal is directional solidification inward from the mold surface.
  • the mold in the centrifugal casting method corresponds to a type of mold in which molten metal is injected into the inside to produce a hot-rolled roll having a desired shape.
  • a mold is usually formed by combining an upper mold and a lower flask into a mold, installed on a rotary roller driven by an external driving source, and rotated together by the rotation of the rotary roller to solidify the molten metal injected into the mold.
  • the molten metal flows while rotating the mold and the casting is made using centrifugal force.
  • the molten metal is flowed into the mold by the action of gravity.
  • the mold is arranged radially along the circumference to make a flow path of the molten metal in the radial direction, and then flows into the center of the disk, and the disk is rotated and cast while pressing by centrifugal force.
  • a tube body is used to continuously move various liquids or gases, and such a tube body is manufactured to a certain standard due to various reasons such as manufacturing method or transportation.
  • the stainless flange produced by the above-described centrifugal casting method is the same casting product as the stainless flange produced by sand casting, but the elongation and tensile strength are close to the forged product, and the structure of the product is dense, and the product does not contain foreign substances. Can produce quality flanges.
  • the reason that the centrifugal casting method, which can produce such high quality products, is neglected at the production site, is that manufacturing is more difficult and productivity is lower than the sand casting method.
  • the mold is made of the material used for general metal casting, and a refractory material with a high heat-resistant temperature is installed (construction) where the molten metal falls to prevent the molten metal from falling directly into the mold, thereby preventing the mold from melting.
  • the workability is very inconvenient because the maintenance process such as repairing and replacing severely damaged refractory materials is frequent, as well as relying on manual work.
  • Patent Document 1 Korean Registered Patent Publication No. 10-1738313 (May 22, 2017)
  • Patent Document 2 Korean Patent Application Publication No. 10-2009-0093006 (September 02, 2009)
  • Patent Document 3 Korean Patent Publication No. 10-1609653 (April 07, 2016)
  • Patent Document 4 Korean Patent Application Publication No. 10-2017-0116684 (October 20, 2017)
  • the present invention was invented in view of the problems of the prior art described above, and an object of the present invention is to provide a stainless flange of excellent quality because the elongation force, tensile strength, etc. are close to forged products, the structure is dense, and foreign substances are not contained. It is to provide a centrifugal casting mold assembly capable of producing a large number of products.
  • Another object of the present invention is to provide a centrifugal casting mold assembly in which a maintenance process such as repair and replacement of a refractory material having severe heat damage is unnecessary, and thus workability is greatly improved.
  • Another object of the present invention is to provide a centrifugal casting mold assembly capable of reducing product cost and labor cost through the production of a large amount of products (stainless flanges).
  • Power transmission means for transmitting the driving force generated from the power generating means
  • a support member 130 having an open top cylindrical shape and fixedly attached to a rotating shaft 132 rotating by the power transmitted through the power transmission means at the center of the lower surface;
  • a mold assembly fixedly installed on the upper surface of the support member 130, and a mold part 144 attached to the outer periphery of the molten metal distribution port 142 centered on the central molten metal distribution port 142 at a predetermined interval (140);
  • a mold support 150 having a hollow crisscross shape and seated on an upper end of the mold assembly 140 to support the mold assembly 140;
  • centrifugal casting mold assembly including a cover member 160 having a molten metal injection port 162 communicating with the molten metal distribution port 142 of the mold assembly 140 in a cylindrical shape with an open lower part.
  • the molten metal distribution port 142 In the present invention, the molten metal distribution port 142,
  • the molten metal 170 which is in the form of a cylinder with the upper and lower portions open through the molten metal injection port 162 of the cover member 160, passes through the flow path P provided in the mold unit 144, to each mold part ( 144).
  • the mold part 144 In the present invention, the mold part 144,
  • a mold frame (144b) and a diaphragm (144c) are sequentially arranged with a pair of front and rear finishing members (144a) having a rectangular shape of a certain thickness in between, and the finishing member (144a), the flask (144b), the diaphragm (144c) is detachably connected through a plurality of bolt members (144d) and nut members (144e).
  • FIG. 1 is a perspective view showing a centrifugal casting mold assembly according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of the centrifugal casting mold assembly shown in FIG. 1;
  • FIG. 3 is a plan view in a state in which the cover member of the present invention is separated
  • FIG. 4 is an exploded perspective view showing a mold assembly in the present invention
  • FIG. 5 is a partially enlarged view of FIG. 4;
  • FIG. 6 is a cross-sectional view showing a state before molten metal is injected into the centrifugal casting mold assembly according to the present invention
  • FIG. 7 is a cross-sectional view showing a state in which molten metal is first injected into the centrifugal casting mold assembly according to the present invention
  • FIG. 8 is a cross-sectional view showing a state in which molten metal is completely injected into the centrifugal casting mold assembly according to the present invention
  • FIG. 9 is a partially enlarged view of FIG. 8;
  • FIG. 10 is a view showing a state in which molten metal is completely injected into a centrifugal casting mold assembly according to another embodiment of the present invention to form a cast product.
  • FIG. 1 is a perspective view showing a centrifugal casting mold assembly according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of the centrifugal casting mold assembly shown in FIG. 1
  • FIG. 3 is a cover member of the present invention in a separated state. It is a top view.
  • Figure 4 is an exploded perspective view showing the mold assembly in the present invention
  • Figure 5 is a partial enlarged view of Figure 4
  • Figure 6 is a cross-sectional view showing a state before molten metal is injected into the centrifugal casting mold assembly according to the present invention to be.
  • Figure 7 is a cross-sectional view showing a state in which molten metal is first injected into the centrifugal casting mold assembly according to the present invention
  • Figure 8 is a cross-sectional view showing a state in which the molten metal is completely injected into the centrifugal casting mold assembly according to the present invention
  • 9 is a partially enlarged view of FIG. 8.
  • the centrifugal casting mold assembly 100 is largely a power generating means, a power transmission means, a support member 130, a mold assembly 140, a mold support 150 ), and a cover member 160.
  • the power generating means generates a driving force, and is constituted by a driving motor (M) (110).
  • the power transmission means transmits the driving force generated from the driving motor (M) 110 to the rotating shaft (SF) 132 to be described later through the belt (or chain) 120. That is, the belt 120 is connected to the driving pulley provided in the motor shaft of the driving motor (M) 110 and the driven pulley provided in the rotating shaft (SF) 132, so that the driving force by the operation of the driving motor 110 While being transmitted to the rotating shaft (SF) 132 through the belt 120, the rotating shaft rotates at high speed (about 300 to 3,000 rpm).
  • the support member 130 has a cylindrical shape with an open top, and a mold assembly 140, which will be described later, is seated and supported on an upper surface, and a rotation shaft 132 is fixedly attached to the center of the lower surface.
  • the rotation shaft 132 for rotating the support member 130 is a vertical type (vertical type), and is suitable for casting ring-shaped objects such as short tubes and gears.
  • vertical centrifugal casting is possible for mass production by shortening the working time in the process of manufacturing a ring-shaped product, and compared to horizontal centrifugal casting, since there is no need to cut the product separately, the process is simplified and structured. Because it is more compact and finer to prevent pore formation in the tissue, it is easy to produce ring-shaped products with excellent mechanical properties, so it is widely applied to products that require excellent mechanical strength such as gears, piston rings, cylinders and bearings. Has become.
  • the mold assembly 140 is fixedly installed on the upper surface of the support member 130, and the mold part is located on the outer periphery of the molten metal distribution port with the center of the molten metal distribution port 142 at the center. 144) are attached at regular intervals (90°).
  • the molten metal distribution port 142 is a cylindrical shape in which the upper and lower portions are opened and communicates with the molten metal inlet 162 of the cover member 160 to be described later, and the molten metal 170 introduced through the molten metal inlet is transferred to the mold part 144. It is distributed to each mold part 144 through the flow path P provided in the.
  • a mold 144b and a diaphragm 144c are sequentially disposed with a pair of front and rear finishing members 144a having a rectangular shape having a predetermined thickness therebetween.
  • the four molds 144b and the four diaphragms 144c are each sequentially disposed with the finishing member 144a interposed therebetween, and the finishing member 144a, the mold mold (144b), the diaphragm (144c) is separably connected to each other through a plurality of bolt members (144d) and a nut member (144e) through the circumference.
  • the number of installations of the mold (144b) and the diaphragm (144c) is not necessarily limited to the above, for example, can be selected within the range of 1 to 10 pairs, and the mold (144b) manufactures the cast product 180
  • a plurality of flow paths P having an approximately'C' cross-sectional shape for supplying the molten metal 170 along the longitudinal direction of the central portion are formed at equal intervals, and between each flow path P and the flow path P
  • partition walls P-1 for uniform injection of the molten metal 170 are formed at regular intervals up and down, respectively.
  • the diaphragm 144c is formed integrally with a plurality of circular protrusions 144c-1 for molding the cast product 180 at equal intervals at a position corresponding to the flow path P along the longitudinal direction of the central portion, in FIG.
  • the other end member (144a) is not shown.
  • the cast product 180 is separated from the mold frame 144b and a circular hole 182 is formed in the center of the cast product 180, and the cast product 180 is formed on the lower side. 144b) is shown in close contact.
  • the mold support 150 is mounted on the upper end of the mold assembly 140 to support the mold assembly 140, has a hollow crisscross shape, and is provided along the circumference. It is detachably seated on the top of the mold 144 through the bolt member 152.
  • the cover member 160 has a cylindrical shape with an open lower portion and a molten metal inlet 162 having a predetermined inner diameter is formed in the center of the upper surface, and the cover member 160 is a plan formed extending from the lower end. It is fitted to the upper end of the support member 130 through the branch 164.
  • FIG. 10 is a view showing a state in which a cast product is molded by completely injecting molten metal into a centrifugal casting mold assembly according to another embodiment of the present invention.
  • a pair of left and right molds 230 and a diaphragm 220 are sequentially disposed with a pair of front and rear closing members 210 therebetween.
  • the six molds 230 and the two diaphragms 220 are sequentially disposed with the finishing member 210 interposed therebetween, respectively, and such a finishing member ( 210), the flask 230, and the diaphragm 220 are connected to each other in a detachable manner through the bolt member 144d and the nut member 144e described above.
  • the mold 230 is formed in a semicircular shape along the longitudinal direction of one edge at equal intervals, and the mold 230 has a sphere having a predetermined diameter as shown in FIG.
  • the cast product 240 is molded.
  • the cover member 160 is gradually removed from the top of the support member 130. It is lowered and coupled to the upper end of the support member 130 through the flange portion 164 of the cover member 160.
  • the mold support 150 is seated on the upper end of the mold assembly 140 to support the mold assembly 140.
  • Such a cast product 180 is a stainless flange in which a plurality of fastening holes are formed in the edge portion by a separate processing process after being demolded from the mold portion 144, or a through hole having the same inner diameter as a tube body is formed in the center portion. Is completed.
  • the elongation force and tensile strength are close to the forged product by injection of the molten metal, the structure is dense, and the foreign material is not contained, so that a number of stainless flanges of excellent quality can be produced.
  • centrifugal casting mold assembly 110 drive motor
  • finishing member 144b mold
  • diaphragm member 150 mold support
  • cover member 162 molten metal inlet

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

La présente invention concerne un ensemble moule à couler centrifuge comprenant : un moyen de génération d'énergie pour générer une force d'entraînement ; un moyen de transmission d'énergie pour transmettre la force d'entraînement générée à partir du moyen de génération d'énergie ; un élément de support (130) qui présente une forme cylindrique avec une partie supérieure ouverte et sur lequel un arbre rotatif (132), qui est entraîné en rotation par l'énergie transmise à travers le moyen de transmission d'énergie, est fixé à demeure à la partie centrale de la surface inférieure dudit élément de support ; un ensemble moule (140) qui est disposé à demeure sur la surface supérieure de l'élément de support (130), dans lequel des parties moules (144) sont chacune fixées à la surface circonférentielle externe d'un trou de distribution de matière fondue (142) à des intervalles constants autour du trou de distribution de matière fondue (142) au niveau de la partie centrale de l'ensemble moule (140) ; un support de moule (150) ayant une forme transversale creuse et placé solidement sur l'extrémité supérieure de l'ensemble moule (140) pour supporter l'ensemble moule (140) ; et un élément de couvercle (160) ayant une forme cylindrique avec une partie inférieure ouverte et pourvu d'une entrée de matière fondue (162) dans sa surface supérieure pour être en communication avec le trou de distribution de matière fondue (142) de l'ensemble moule (140).
PCT/KR2020/003583 2019-05-18 2020-03-16 Ensemble moule à couler centrifuge WO2020235792A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190058443A KR102096757B1 (ko) 2019-05-18 2019-05-18 원심주조 금형 조립체
KR10-2019-0058443 2019-05-18

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WO2020235792A1 true WO2020235792A1 (fr) 2020-11-26

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Publication number Priority date Publication date Assignee Title
CN112427627A (zh) * 2020-11-03 2021-03-02 陈秀兰 一种电力金具铸造成型方法

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Publication number Priority date Publication date Assignee Title
KR100790533B1 (ko) * 2007-06-05 2008-01-02 배정식 원심 주조기
KR100817546B1 (ko) * 2006-11-09 2008-03-27 정태우 수직형 원심 주조장치
JP2008126313A (ja) * 2006-11-21 2008-06-05 Honda Seiki Kk 急冷凝固用遠心鋳造機の回転鋳型
KR20120011908A (ko) * 2010-07-27 2012-02-09 한국피아이엠(주) 원심주조장치 및 방법
KR101542457B1 (ko) * 2015-06-02 2015-08-12 최창호 원심주조기의 금형 잠금장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090093006A (ko) 2008-02-28 2009-09-02 현대제철 주식회사 원심주조금형
KR101609653B1 (ko) 2014-10-29 2016-04-07 한국생산기술연구원 원심주조방법
KR20170116684A (ko) 2016-04-12 2017-10-20 주식회사 퓨쳐캐스트 원심주조식 금형장치 및 그에 따른 원심주조식 제품 주조방법
KR101738313B1 (ko) 2016-10-04 2017-05-22 유세권 원심주조금형

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100817546B1 (ko) * 2006-11-09 2008-03-27 정태우 수직형 원심 주조장치
JP2008126313A (ja) * 2006-11-21 2008-06-05 Honda Seiki Kk 急冷凝固用遠心鋳造機の回転鋳型
KR100790533B1 (ko) * 2007-06-05 2008-01-02 배정식 원심 주조기
KR20120011908A (ko) * 2010-07-27 2012-02-09 한국피아이엠(주) 원심주조장치 및 방법
KR101542457B1 (ko) * 2015-06-02 2015-08-12 최창호 원심주조기의 금형 잠금장치

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