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KR100680736B1 - Core pin installation structure of high pressure casting mold - Google Patents

Core pin installation structure of high pressure casting mold Download PDF

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Publication number
KR100680736B1
KR100680736B1 KR1020050113236A KR20050113236A KR100680736B1 KR 100680736 B1 KR100680736 B1 KR 100680736B1 KR 1020050113236 A KR1020050113236 A KR 1020050113236A KR 20050113236 A KR20050113236 A KR 20050113236A KR 100680736 B1 KR100680736 B1 KR 100680736B1
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South Korea
Prior art keywords
core
mold
core pins
molds
core pin
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KR1020050113236A
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Korean (ko)
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김병술
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현대자동차주식회사
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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
    • 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
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24—Accessories for locating and holding cores or inserts
    • 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
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • 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
    • B22D17/2038—Heating, cooling or lubricating the injection unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies

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

Abstract

본 발명은 고압주조 금형의 코어 핀 설치구조에 관한 것이며, 상세하게는 다이캐스팅 금형의 코어 핀의 휨 방지구조에 관한 것으로서, 코어 핀의 자유단의 어긋남과 주조 후 휨을 양호하게 방지한 것이다.The present invention relates to a core pin mounting structure of a high-pressure casting mold, and more particularly, to a bending prevention structure of a core pin of a die casting mold, which prevents misalignment of the free end of the core pin and bending after casting.

본 발명은 1개의 고정금형(10)의 측면에 측면으로 슬라이딩하는 측면가동금형(코어금형)(11)을 배치함과 동시에 그 상하에 상하로 슬라이딩하는 상하가동금형(12a)(12b)을 배치하고, 또한 상기 측면가동금형(11)의 양측면에 전후로 슬라이딩하는 전후가동금형(13a)(13b)을 배치하여 상기 각 금형(10), (11), (12a) (12b), (13a)(13b)에 의하여 포위되는 캐비티(C)를 형성하며, 그리고 상기 금형의 대향금형에 공구강 등으로 된 코어 핀(20a)(20b)을, 도면에서는 전후가동금형(13a)(13b)에 코어 핀(20a)(20b)을 설치한 것이다.The present invention arranges side movable molds (core molds) 11 that slide to the side of one stationary mold 10, and vertical movable molds 12a and 12b that slide up and down at the same time. Also, the front and rear movable molds 13a and 13b which slide back and forth on both side surfaces of the side movable mold 11 are disposed so that the respective molds 10, 11, 12a, 12b and 13a ( The cavity C surrounded by 13b) is formed, and the core pins 20a and 20b made of tool steel or the like in the opposing mold of the mold, and the core pins in the front and rear movable molds 13a and 13b in the drawing. 20a) and 20b are provided.

상기 코어 핀(20a)(20b)은 전후가동금형(13a)(13b)에 가로로 단턱(16a) (16b)을 부설한 지지공(15a)(15b)을 형성하고, 상기 코어 핀(20a)(20b)의 내부에 냉각수 순환로(21a)(21b)를 형성함과 동시에 일단에 지지돌기(22a)(22b)를 형성하여 상기 지지돌기(22a)(22b)를 지지공(15a)(15b)에 단턱(16a)(16b)에 걸려 지지되게 삽입하여서 그 자유단(대향면)을 평행하게 일치시키고, 상기 지지공(15a)(15b)의 입구측에 멈춤나사(24a)(24b)(25a)(25b)를 체결하여 코어 핀(20a)(20b)을 고정하며, 또한 상기 냉각수 순환로(21a)(21b)에는 냉각수 도관(26a)(26b)을 연결하여서 된 것이다.The core pins 20a and 20b form support holes 15a and 15b in which the step bars 16a and 16b are horizontally disposed on the front and back movable molds 13a and 13b, and the core pins 20a are formed. Cooling water circulation passages 21a and 21b are formed inside the support 20b, and support protrusions 22a and 22b are formed at one end to support the support protrusions 22a and 22b. Inserting so as to be supported by the stepped portions 16a and 16b, the free ends (opposite surfaces) coincide in parallel, and the set screws 24a, 24b and 25a on the inlet side of the supporting holes 15a and 15b. The core pins 20a and 20b are fixed by fastening the 25b, and the cooling water conduits 26a and 26b are connected to the cooling water circulation paths 21a and 21b.

그리고 본 발명은 상기 코어 핀(20a)(20b)의 자유단에 요철부(40)를 형성하여 상호 결합하고, 상기 코어 핀(20a)(20b) 중 어느 1개의 코어 핀(20b)은 지지돌기(22b)와 멈춤나사(24b) 사이에 응력흡수수단(41)을 삽입하여서 된 것이다.In addition, the present invention forms an uneven portion 40 at the free ends of the core pins 20a and 20b, and mutually couples the core pins 20b to any one of the core pins 20a and 20b. The stress absorbing means 41 is inserted between the 22b and the stop screw 24b.

Description

고압주조 금형의 코어 핀 설치구조 {CORE PIN MOUNTING MEANS OF HIGH PRESSURE CASTING METAL MOLD}Core pin installation structure of high pressure casting mold {CORE PIN MOUNTING MEANS OF HIGH PRESSURE CASTING METAL MOLD}

도 1은 다이캐스팅 금형의 종단면도1 is a longitudinal sectional view of a die casting mold;

도 2는 도 1의 A-A 선에 따른 본 발명의 실시예의 단면도2 is a cross-sectional view of an embodiment of the present invention taken along the line A-A of FIG.

도 3은 도 1의 A-A 선에 대응되는 종래의 것의 단면도3 is a cross-sectional view of a conventional one corresponding to line A-A of FIG.

< 도면의 주요부분에 대한 부호설명 >               <Explanation of Signs of Major Parts of Drawings>

10 : 고정금형 11,12a,12b,13a,13b : 가동금형 20a,20b : 코어 핀10: fixed mold 11, 12a, 12b, 13a, 13b: movable mold 20a, 20b: core pin

22a,22b : 지지돌기 24a,24b,25a,25b : 멈춤나사 40 : 요철부22a, 22b: support protrusion 24a, 24b, 25a, 25b: set screw 40: uneven part

41 : 응력흡수수단41: stress absorbing means

본 발명은 고압주조 금형의 코어 핀 설치구조에 관한 것이며, 상세하게는 다이캐스팅 금형의 코어 핀의 휨 방지구조에 관한 것이다.The present invention relates to a core pin mounting structure of a high pressure casting mold, and more particularly, to a bending preventing structure of a core pin of a die casting mold.

주지하는 바와 같이, 예를 들어 엔진의 알루미늄제 실린더 블록과 같이 대량생산으로 고정밀도의 제품을 생산하기 위하여서는 다이캐스팅에 의한 연속주조방법이 사용되고 있으며, 상기 실린더 블록과 같은 제품은 이형단면(異形斷面)임으로 1 개의 고정금형과 복수개의 가동금형으로 구성하고, 또한 오일홀과 같은 긴홀이 가로 또는 세로로 관통형성되어 있기 때문에 대향되는 금형에 코어 핀을 설치하여야 한다.As is well known, for example, in order to produce a high-precision product by mass production, such as an aluminum cylinder block of an engine, the continuous casting method by die casting is used, and a product such as the cylinder block has a deformed cross section. Since it is composed of one fixed mold and a plurality of movable molds, and long holes such as oil holes are formed to penetrate horizontally or vertically, core pins should be installed on the opposite molds.

종래의 다이캐스팅 금형은 도 1에서 참조되고 도 3에 도시한 바와 같이, 1개의 고정금형(10)의 측면에 측면으로 슬라이딩하는 측면가동금형(코어금형)(11)을 배치함과 동시에 상하에 상하로 슬라이딩하는 상하가동금형(12a)(12b)을 배치하고, 또한 상기 측면가동금형(11)의 양측면에 전후로 슬라이딩하는 전후가동금형(13a) (13b)을 배치하여 상기 각 금형(10), (11), (12a) (12b), (13a)(13b)에 의하여 포위되는 캐비티(C)를 형성하며, 그리고 상기 금형 중 대향금형에 공구강 등으로 된 코어 핀(20a)(20b)을, 도면에서는 전후가동금형(13a)(13b)에 코어 핀(20a)(20b)을 설치한 것이다.Conventional die-casting dies are referred to in FIG. 1 and shown in FIG. 3, and the side movable molds (core molds) 11 sliding side to side on one side of the stationary mold 10 and at the same time up and down Each of the molds 10, ( 11), (12a) (12b), (13a) is formed a cavity (C) surrounded by (13b), and the core pins (20a, 20b) made of tool steel or the like in the opposite mold of the mold, drawing In this case, the core pins 20a and 20b are provided on the front and rear movable molds 13a and 13b.

상기 코어 핀(20a)(20b)은 전후가동금형(13a)(13b)에 가로로 단턱(16a) (16b)을 부설한 지지공(15a)(15b)을 형성하고, 상기 코어 핀(20a)(20b)의 내부에 냉각수 순환로(21a)(21b)를 형성함과 동시에 일단에 지지돌기(22a)(22b)를 형성하여 상기 지지돌기(22a)(22b)를 지지공(15a)(15b)에 단턱(16a)(16b)에 걸려 지지되게 삽입하여서 그 자유단(대향면)을 면접촉시키고, 상기 지지공(15a)(15b)의 입구측에 멈춤나사(24a)(24b)(25a)(25b)를 상기 지지돌기(22a)(22b)에 접촉되게 체결하여 코어 핀(20a)(20b)을 고정하며, 또한 상기 냉각수 순환로(21a)(21b)에는 냉각수 도관(26a)(26b)을 연결하여서 된 것이다.The core pins 20a and 20b form support holes 15a and 15b in which the step bars 16a and 16b are horizontally disposed on the front and back movable molds 13a and 13b, and the core pins 20a are formed. Cooling water circulation passages 21a and 21b are formed inside the support 20b, and support protrusions 22a and 22b are formed at one end to support the support protrusions 22a and 22b. The free end (opposite surface) is brought into contact with the stepped portions 16a and 16b so as to be held in contact with each other, and the set screws 24a, 24b and 25a are provided on the inlet side of the support holes 15a and 15b. Fastening the core pins (20a) and (b) to the support protrusions (22a) and (22b) so as to contact the support protrusions (22a) and (22b), and cooling water conduits (26a) and (26b). It was made by connecting.

미설명부호 27a, 27b는 씰이다.Reference numerals 27a and 27b are seals.

그러나 상기와 같이 코어 핀(20a)(20b)의 자유단(대향면)이 면접촉되면 캐비티(C)의 내부에 고속(40m/sec)으로 용탕이 유입될 때 그 용탕의 충격력에 의하여 자유단이 어긋나는 현상이 발생하고, 또한 상기 용탕의 온도(630℃)는 고온임으로 코어 핀(20a)(20b)이 열팽창에 의하여 신장됨으로써 그 자유단에 압축응력이 발생하며, 상기 압축응력은 각 반대편 즉 고정부인 지지돌기(22a)(22b)측으로 전달되지만 고정부는 멈춤나사(24a)(24b)로 지지되어 있음으로 코어 핀(20a)(20b)에 휨이 발생하는 것이다.However, when the free end (opposed surface) of the core pins 20a and 20b is in surface contact as described above, when the melt flows into the cavity C at a high speed (40 m / sec), the free end is caused by the impact force of the melt. This shifting phenomenon occurs, and the temperature of the molten metal (630 ° C.) is a high temperature, so that the core pins 20a and 20b are extended by thermal expansion, so that compressive stress occurs at their free ends. The fixing part is transferred to the supporting protrusions 22a and 22b, but the fixing part is supported by the set screws 24a and 24b, so that bending occurs in the core pins 20a and 20b.

상기와 같이 코어 핀(20a)(20b)의 자유단에 어긋남이 발생하고, 코어 핀(20a)(20b)에 휨이 발생하면 주조상태 즉 반제품에 형성된 긴홀의 위치가 정위치를 유지하지 못함으로써 불량율이 높고, 또한 긴홀을 기계 가공할 때 공구의 파손이 자주 발생함으로써 생산성이 저하되는 문제점이 발생하는 것이다.If the misalignment occurs at the free end of the core pins 20a and 20b as described above, and the warp occurs in the core pins 20a and 20b, the position of the long hole formed in the cast state, that is, the semi-finished product, cannot be maintained. The defect rate is high, and the breakage of a tool frequently occurs when machining a long hole, and the problem that productivity falls is generated.

본 발명은 상기한 실정을 감안하여, 코어 핀의 자유단의 어긋남과 주조 후 휨을 양호하게 방지한 고압주조 금형의 코어 핀 설치구조를 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a core pin mounting structure of a high-pressure casting mold which prevents misalignment of the free end of the core pin and bending after casting.

상기한 목적을 달성하기 위하여, 본 발명은 1개의 고정금형과 복수개의 가동금형에 의하여 포위되는 캐비티를 형성함과 동시에 상기 금형 중 대향금형에 단턱을 부설한 지지공을 형성하고, 코어 핀은 내부에 냉각수 순환로를 형성함과 동시에 일단에 지지돌기를 형성하여 상기 지지돌기를 지지공에 단턱에 걸려 지지되게 삽입한 후 지지공의 입구측에 멈춤나사를 체결하여 코어 핀을 고정한 것에 있어서, 상 기 코어 핀의 자유단에 요철부를 형성하여 상호 결합하고, 상기 코어 핀 중 어느 1개의 코어 핀은 지지돌기와 멈춤나사 사이에 응력흡수수단을 삽입하여서 된 것이다.In order to achieve the above object, the present invention forms a cavity surrounded by one fixed mold and a plurality of movable molds, and at the same time to form a support hole in which a step is attached to the opposite mold of the mold, the core pin is internal In forming a cooling water circulation path at the same time, and forming a support protrusion at one end to be supported by a stepped support in the support hole and fastening the stop screw to the inlet side of the support hole to fix the core pin. The uneven portion is formed at the free end of the core pin to be coupled to each other, and one of the core pins is formed by inserting a stress absorbing means between the support protrusion and the stop screw.

본 발명은 도 1 및 도 2에 도시한 바와 같이, 1개의 고정금형(10)의 측면에 측면으로 슬라이딩하는 측면가동금형(코어금형)(11)을 배치함과 동시에 그 상하에 상하로 슬라이딩하는 상하가동금형(12a)(12b)을 배치하고, 또한 상기 측면가동금형(11)의 양측면에 전후로 슬라이딩하는 전후가동금형(13a)(13b)을 배치하여 상기 각 금형(10), (11), (12a)(12b), (13a)(13b)에 의하여 포위되는 캐비티(C)를 형성하며, 그리고 상기 금형 중 대향금형에 공구강 등으로 된 코어 핀(20a)(20b)을, 도면에서는 전후가동금형(13a)(13b)에 코어 핀(20a)(20b)을 설치한 것이다. 1 and 2, the side movable mold (core mold) 11, which slides laterally on the side of one stationary mold 10, is disposed and at the same time sliding up and down. The upper and lower movable molds 12a and 12b are disposed, and the front and rear movable molds 13a and 13b which slide back and forth on both sides of the side movable mold 11 are disposed so that the respective molds 10, 11, Cavities C surrounded by (12a) (12b) and (13a) (13b) are formed, and core pins (20a) (20b) made of tool steel or the like in an opposing mold among the molds. The core pins 20a and 20b are provided in the molds 13a and 13b.

상기 코어 핀(20a)(20b)은 전후가동금형(13a)(13b)에 가로로 단턱(16a) (16b)을 부설한 지지공(15a)(15b)을 형성하고, 상기 코어 핀(20a)(20b)의 내부에 냉각수 순환로(21a)(21b)를 형성함과 동시에 일단에 지지돌기(22a)(22b)를 형성하여 상기 지지돌기(22a)(22b)를 지지공(15a)(15b)에 단턱(16a)(16b)에 걸려 지지되게 삽입하여서 그 자유단(대향면)을 평행하게 일치시키고, 상기 지지공(15a)(15b)의 입구측에 멈춤나사(24a)(24b)(25a)(25b)를 체결하여 코어 핀(20a)(20b)을 고정하며, 또한 상기 냉각수 순환로(21a)(21b)에는 냉각수 도관(26a)(26b)을 연결하여서 된 것이다.The core pins 20a and 20b form support holes 15a and 15b in which the step bars 16a and 16b are horizontally disposed on the front and back movable molds 13a and 13b, and the core pins 20a are formed. Cooling water circulation passages 21a and 21b are formed inside the support 20b, and support protrusions 22a and 22b are formed at one end to support the support protrusions 22a and 22b. Inserting so as to be supported by the stepped portions 16a and 16b, the free ends (opposite surfaces) coincide in parallel, and the set screws 24a, 24b and 25a on the inlet side of the supporting holes 15a and 15b. The core pins 20a and 20b are fixed by fastening the 25b, and the cooling water conduits 26a and 26b are connected to the cooling water circulation paths 21a and 21b.

그리고 본 발명은 상기 코어 핀(20a)(20b)의 자유단에 요철부(40)를 형성하 여 상호 결합하고, 상기 코어 핀(20a)(20b) 중 어느 1개의 코어 핀(20b)은 지지돌기(22b)와 멈춤나사(24b) 사이에 응력흡수수단(41)을 삽입하여서 된 것이다.In the present invention, the uneven portions 40 are formed at the free ends of the core pins 20a and 20b to be coupled to each other, and any one of the core pins 20b of the core pins 20a and 20b is supported. The stress absorbing means 41 is inserted between the projection 22b and the stop screw 24b.

상기 응력흡수수단(41)은 코어 핀(20a)(20b)이 열팽창할 때 이를 흡수하는 기능을 하는 것임으로 코일 스프링이 좋고, 또한 도넛형 내열성 고무도 사용할 수 있는 것이다.The stress absorbing means 41 has a function of absorbing the core pins 20a and 20b when they are thermally expanded, so that the coil spring is good, and a donut type heat resistant rubber can also be used.

미설명부호 27a, 27b는 씰이다.Reference numerals 27a and 27b are seals.

이상과 같은 본 발명은 코어 핀(20a)(20b)의 자유단(대향면)은 요철부(40)에 의하여 상호 결합되어 있음으로 캐비티(C)에 용탕이 고속으로 주입될 때 코어 핀(20a)(20b)의 자유단에 충격이 가하여져도 어긋나는 현상이 발생되는 것이 방지되고, 또한 코어 핀(20a)의 지지돌기(22a)는 멈춤나사(24a)(25a)에 의하여 고정되어 있고 코어 핀(20b)의 지지돌기(22b)의 후방에는 응력흡수수단(41)이 설치되어 있음으로 캐비티(C)에 고온의 용탕이 주입될 때 코어 핀(20b)이 응력흡수수단(41)을 수축하면서 후진되어 코어 핀(20a)의 열팽창까지 흡수함으로써 코어 핀(20a)(20b)에 휨이 발생되지 않게 되는 것이다.According to the present invention as described above, the free ends (opposing surfaces) of the core pins 20a and 20b are coupled to each other by the uneven portion 40 so that the molten metal is injected into the cavity C at a high speed. The shift phenomenon is prevented from occurring even when an impact is applied to the free end of the blade 20b, and the support protrusion 22a of the core pin 20a is fixed by the set screws 24a and 25a. Since the stress absorbing means 41 is installed behind the support protrusion 22b of the 20b, the core pin 20b contracts the stress absorbing means 41 when the hot melt is injected into the cavity C. As a result, the core fins 20a and 20b are not warped by absorbing even the thermal expansion of the core fins 20a.

상기와 같이 코어 핀(20a)(20b)의 자유단에 어긋남의 발생이 방지되고, 또한 코어 핀(20a)(20b)에 휨이 발생되지 않으면 반제품에 형성된 긴홀의 정위치 유지가 가능하게 되는 것이다.As described above, the occurrence of misalignment at the free end of the core pins 20a and 20b is prevented, and if the bending is not generated in the core pins 20a and 20b, the long hole formed in the semi-finished product can be maintained in position. .

이상과 같이 본 발명은 코어 핀의 자유단에 요철부를 형성하여 자유단의 상호 어긋남을 방지하고, 코어 핀 중 어느 하나의 코어 핀의 지지돌기와 멈춤나사 사 이에 응력흡수수단을 삽입하여서 열팽창을 흡수함으로써 코어 핀에 휨이 발생되는 것을 방지하여서 반제품의 긴홀의 정위치 유지가 가능하기 때문에 불량율이 감소되고, 긴홀을 가공하는 공구의 파손이 없음으로 생산성이 향상되는 것이다.As described above, the present invention forms an uneven portion at the free end of the core pin to prevent mutual displacement of the free ends, and absorbs thermal expansion by inserting stress absorbing means between the support protrusion and the stop screw of any one of the core pins. By preventing bending of the core pin to maintain the exact position of the long hole of the semi-finished product, the defective rate is reduced, and productivity is improved because there is no breakage of the tool for processing the long hole.

Claims (2)

1개의 고정금형과 복수개의 가동금형에 의하여 포위되는 캐비티를 형성함과 동시에 상기 금형 중 대향금형에 단턱을 부설한 지지공을 형성하고, 코어 핀은 내부에 냉각수 순환로를 형성함과 동시에 일단에 지지돌기를 형성하여 상기 지지돌기를 지지공에 단턱에 걸려 지지되게 삽입한 후 지지공의 입구측에 멈춤나사를 체결하여 코어 핀을 고정한 것에 있어서, 상기 코어 핀의 자유단에 요철부를 형성하여 상호 결합하고, 상기 코어 핀 중 어느 1개의 코어 핀은 지지돌기와 멈춤나사 사이에 응력흡수수단을 삽입하여서 된 고압주조 금형의 코어 핀 설치구조.While forming a cavity surrounded by one stationary mold and a plurality of movable molds, and forming a support hole with a stepped portion in the opposite mold among the molds, the core pin forms a cooling water circulation path therein and is supported at one end. Forming a projection to insert the support protrusion to be supported by a step in the support hole and then fastening the stop screw on the inlet side of the support hole to fix the core pin, to form an uneven portion at the free end of the core pin to be mutually coupled And one of the core pins is a core pin mounting structure of a high-pressure casting mold formed by inserting a stress absorbing means between the support protrusion and the stop screw. 제 1 항에 있어서, 응력흡수수단을 코일 스프링 또는 내열성 고무 중에서 선택되는 고압주조 금형의 코어 핀 설치구조.The core pin mounting structure of claim 1, wherein the stress absorbing means is selected from a coil spring or a heat resistant rubber.
KR1020050113236A 2005-11-25 2005-11-25 Core pin installation structure of high pressure casting mold KR100680736B1 (en)

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KR101038485B1 (en) 2009-02-26 2011-06-01 제임스강 Slide die casting device for amorphous alloys for simultaneous side hole machining
KR101048123B1 (en) * 2008-06-11 2011-07-08 현대자동차주식회사 Core pin unit for die casting
KR20160148733A (en) * 2015-06-16 2016-12-27 현대자동차주식회사 The Inserted Pipes for Diecasting
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101048123B1 (en) * 2008-06-11 2011-07-08 현대자동차주식회사 Core pin unit for die casting
KR101038485B1 (en) 2009-02-26 2011-06-01 제임스강 Slide die casting device for amorphous alloys for simultaneous side hole machining
US9731347B2 (en) 2014-10-14 2017-08-15 Hyundai Motor Company Core pin for preventing molten metal from flowing into pipe and casting device using the same
KR20160148733A (en) * 2015-06-16 2016-12-27 현대자동차주식회사 The Inserted Pipes for Diecasting
KR101705170B1 (en) 2015-06-16 2017-02-10 현대자동차주식회사 The Inserted Pipes for Diecasting
KR20200072815A (en) 2018-12-13 2020-06-23 현대자동차주식회사 Multi-cast system for manufacturing catings with two different materials, multi-cast method and catings with two different materials manufactured through the method
US11154927B2 (en) 2018-12-13 2021-10-26 Hyundai Motor Company Composite casting system and composite casting method for manufacturing heterogeneous material casting product, and heterogeneous material casting product manufactured by composite casting method
KR102703065B1 (en) 2018-12-13 2024-09-05 현대자동차주식회사 Multi-cast system for manufacturing catings with two different materials, multi-cast method and catings with two different materials manufactured through the method
CN113231618A (en) * 2021-03-26 2021-08-10 苏州久越金属科技有限公司 5G small-sized high-precision filter shell die-casting die and forming process thereof

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