KR100572581B1 - Die casting machine of vacuum gravity - Google Patents

Die casting machine of vacuum gravity Download PDF

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Publication number
KR100572581B1
KR100572581B1 KR1020030071637A KR20030071637A KR100572581B1 KR 100572581 B1 KR100572581 B1 KR 100572581B1 KR 1020030071637 A KR1020030071637 A KR 1020030071637A KR 20030071637 A KR20030071637 A KR 20030071637A KR 100572581 B1 KR100572581 B1 KR 100572581B1
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South Korea
Prior art keywords
mold
fixed
vacuum
cylinder
vacuum tank
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KR1020030071637A
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Korean (ko)
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KR20050036082A (en
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고동근
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고동근
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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
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/06—Vacuum casting, i.e. making use of vacuum to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

본 발명은 알미늄이나 구리합금금속등을 용해하여 진공상태로한 금형내에 용해금속의 무게에 의하여 유입되게하여 주로 부피가 큰 제품을 성형할 수 있도록한 진공중력 금형주조기에 관한 것이다.The present invention relates to a vacuum gravity mold casting machine for dissolving aluminum or copper alloy metal and allowing the molten metal to flow into a mold in a vacuum state to form a bulky product.

종래의 중력 금형주조기는 금속의 용해를 대기중에서 하기 때문에 용해재료의 손실과 합금재료의 성분저하가 심하고 특히 대기중에서 산화가 심한 합금금속은 대기중의 공기와 접촉되는 것을 방지하기 위하여 불활성가스(CO₂)를 주위에 분사하게 되는데 이때 불활성가스로 인하여 극심하게 대기를 오염시키게됨과 아울러 인체에 많은 악영향을 미치게되고, 이로 인하여 생산률저하, 불량률증가, 원가상승과 조직이 밀실한 제품의 생산이 불가능하여 두께가 얇고, 가볍고 강도가 강한 제품을 얻을 수 없는 문제가 따르게 되었다.Conventional gravity die casting machine dissolves the metal in the air, so the loss of melted material and the degradation of the alloying material are severe. Especially, the alloy metal, which is highly oxidized in the air, is prevented from coming into contact with air in the atmosphere. ), Which in turn causes pollution to the air due to inert gas, and also adversely affects the human body. As a result, it is impossible to produce products with reduced production rate, increased defective rate, higher cost, and tight tissues. The problem is that thin, light and strong products cannot be obtained.

본 발명은 상기와 같은 문제점을 해결하기 위하여 금속을 용해하기 위한 진공탱크와 금형장치를 매우 합리적으로 연결하여 대기오염이 없는 깨끗한 작업환경에서 고품질의 제품을 얻을 수 있도록한 것으로서The present invention is to solve the above problems by connecting the vacuum tank for dissolving the metal and the mold apparatus very reasonably to obtain a high quality product in a clean working environment without air pollution as

금형의 상부에다 진공탱크(20)을 설치하여 진공탱크(20)의 내의 용탕도가니(26)에서 용해한 용탕을 진공상태의 금형의 상부에서 주입하여 고품질의 제품을 얻을 수 있도록한 진공중력 금형주조기를 제공함에 그 목적이 있다.The vacuum gravity mold casting machine is provided with a vacuum tank 20 at the upper part of the mold to inject molten metal dissolved in the molten crucible 26 in the vacuum tank 20 at the upper part of the vacuum mold to obtain a high quality product. The purpose is to provide.

가동금형, 고정금형, 진공탱크.Movable mold, fixed mold, vacuum tank.

Description

진공중력 금형주조기{DIE CASTING MACHINE OF VACUUM GRAVITY}Vacuum Gravity Mold Casting Machine {DIE CASTING MACHINE OF VACUUM GRAVITY}

도1은 본 발명의 단면도1 is a cross-sectional view of the present invention

도2는 본 발명의 일부사시도2 is a partial perspective view of the present invention

도3은 본 발명의 진공탱크부의 단면도Figure 3 is a cross-sectional view of the vacuum tank portion of the present invention

도4는 본 발명의 작동 단면도4 is an operational cross-sectional view of the present invention.

도5는 본 발명의 작동 단면도5 is an operational cross-sectional view of the present invention.

도6는 본 발명의 작동 단면도6 is an operational cross-sectional view of the present invention.

도7은 본 발명의 따른 다른 실시예시도Figure 7 is another embodiment of the present invention

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

1 : 기대1: expect

2, 3 : 지지대2, 3: support

4 : 안내봉4: guide rod

5 : 가동압판5: moving platen

6 : 금형고정판6: mold fixing plate

7 : 고정금형7: fixed mold

8 : 금형고정판8: mold fixing plate

801 : 공기배출구멍801: air exhaust hole

9 : 가동금형9: movable mold

10 : 실린더10: cylinder

10A : 피스톤로드10A: Piston Rod

11 : 실린더11: cylinder

11A : 피스톤로드11A: Piston Rod

12 : 지지판12: support plate

13 : 제품탈리핀13: product lippin

20 : 진공탱크20: vacuum tank

20A : 용탕출구20A: molten metal outlet

20B : 공기배출관20B: air discharge pipe

21 : 재료안내판21: Material Information Board

22 : 실린더22: cylinder

22A : 피스톤로드22A: Piston Rod

23 : 판밸브23: plate valve

24 : 하우징24: housing

25 : 중공축25: hollow shaft

26 : 용탕도가니26: molten crucible

27 : 전열선27: heating wire

28 : 피니언28: pinion

29 : 실린더29: cylinder

29A : 랙29A: rack

30 : 밸브30: valve

30A : 재료투입구멍30A: Material input hole

31 : 밸브31: valve

31A : 재료투입구멍31A: Material input hole

32 : 연결관32 connector

32A : 공기배출구멍32A: air exhaust hole

33 : 판밸브33: plate valve

33A : 구멍33A: Hole

34 : 판밸브34: plate valve

35 : 실린더35 cylinder

35A : 피스톤로드35A: Piston Rod

36 : 실린더36: cylinder

36A : 피스톤로드36A: Piston Rod

37 : 지지판37: support plate

38 : 실린더38: cylinder

38A : 플런저38A: Plunger

39 : 콘베이어39: Conveyor

40 : 주조재료40: casting material

가 : 진공펌프A: Vacuum pump

본 발명은 알미늄이나 구리합금금속등을 용해하여 진공상태로한 금형내에 용해금속의 무게에 의하여 유입되게하여 주로 부피가 큰 제품을 성형할 수 있도록한 진공중력 금형주조기에 관한 것으로서The present invention relates to a vacuum gravity mold casting machine which melts aluminum or copper alloy metals and flows them into a mold in a vacuum state to form a bulky product.

더욱 상세하게는 금형의 상부에다 진공탱크의 용탕출구를 연결하여 진공탱크의 내에서 용융시킨 용융금속을 진공상태의 금형내로 자연적으로 흘러들어가게하여 금형내의 용융금속을 가압하지 않고 제품을 성형할 수 있도록한 것이다.More specifically, the molten metal outlet of the vacuum tank is connected to the upper part of the mold to naturally flow the molten metal melted in the vacuum tank into the vacuum mold to form the product without pressurizing the molten metal in the mold. It is.

종래의 중력 금형주조기는 금속의 용해를 대기중에서 하기 때문에 용해재료의 손실과 합금재료의 성분저하가 심하고 특히 대기중에서 산화가 심한 합금금속은 대기중의 공기와 접촉되는 것을 방지하기 위하여 불활성가스(CO₂)를 주위에 분사하게 되는데 이때 불활성가스로 인하여 극심하게 대기를 오염시키게됨과 아울러 인체에 많은 악영향을 미치게되고, 이로 인하여 생산률저하, 불량률증가, 원가상승과 조직이 밀실한 제품의 생산이 불가능하여 두께가 얇고, 가볍고 강도가 강한 제품을 얻을 수 없는 문제가 따르게 되었다.Conventional gravity die casting machine dissolves the metal in the air, so the loss of melted material and the degradation of the alloying material are severe. Especially, the alloy metal, which is highly oxidized in the air, is prevented from coming into contact with air in the atmosphere. ), Which in turn causes pollution to the air due to inert gas, and also adversely affects the human body. As a result, it is impossible to produce products with reduced production rate, increased defective rate, higher cost, and tight tissues. The problem is that thin, light and strong products cannot be obtained.

본 발명은 상기와 같은 문제점을 해결하기 위하여 금속을 용해하기 위한 진공탱크와 금형장치를 매우 합리적으로 연결하여 대기오염이 없는 깨끗한 작업환경에서 고품질의 제품을 얻을 수 있도록한 것으로서 The present invention is to solve the above problems by connecting the vacuum tank for dissolving the metal and the mold apparatus very reasonably to obtain a high quality product in a clean working environment without air pollution as                         

금형의 상부에다 진공탱크(20)을 설치하여 진공탱크(20)의 내의 용탕도가니(26)에서 용해한 용탕을 진공상태의 금형의 상부에서 주입하여 고품질의 제품을 얻을 수 있도록한 진공중력 금형주조기를 제공함에 그 목적이 있다.The vacuum gravity mold casting machine is provided with a vacuum tank 20 at the upper part of the mold to inject molten metal dissolved in the molten crucible 26 in the vacuum tank 20 at the upper part of the vacuum mold to obtain a high quality product. The purpose is to provide.

이하 본 발명을 첨부도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명의 단면도이고1 is a cross-sectional view of the present invention.

도2는 본 발명의 요부사시도이며Figure 2 is a main perspective view of the present invention

도3은 본 발명의 일부단면도로서3 is a partial cross-sectional view of the present invention.

도1내지 도2에 도시된 바와같이As shown in FIGS. 1 to 2

기대(1)의 상부에 설치한 지지대(2)(3)에 가동압판(5)을 안내하기 위한 수개의 안내봉(4)을 설치하고 지지대(2)에는 금형고정판(6)과 고정금형(7)을, 지지대(3)에는 실린더(10)를 고정하되, 가동압판(5)에는 실린더(11)와 실린더(10)의 피스톤로드(10A)및 지지판(12)을 고정하여 실린더(11)의 피스톤로드(11A)에는 제품탈리핀(13)을, 지지판(12)에는 금형고정판(8)과 가동금형(9)을 고정하여 제품탈리핀(13)을 관통시켜서된 것에 있어서 금형고정판(8)의 하부에는 공기배출구멍(801)을 형성하여 진공펌프(가)와 연결하고 세로로 설치한 고정금형(7)과 가동금형(9)의 상부에는 진공탱크(20)의 용탕출구(20A)를 위치시켜 실린더(22)의 피스톤로드(22A)에 고정한 판밸브(23)에 의하여 개폐시킬 수 있도록하고 진공탱크(20)에 고정한 하우징(24)에는 중공축(25)을 회전자유롭게 설치하는 한편 중공축(25)의 단부에는 전열선(27)을 감은 용탕도가니(26)와 피니언(28)을 고정하여 피니언(28)은 실린더(29)의 랙(29A)과 이맞춤시켜 중공축(25)을 회 전시킬 수 있도록하며 진공탱크(20)의 내부에 고정한 재료안내판(21)의 외측에는 재료투입구멍(30A)(31A)을 뚫은 한쌍의 밸브(30)(31)를 연결관(32)으로 연결하여 고정하고 진공탱크(20)와 연결관(32)의 공기배출관(20B)(32A)은 진공펌프(가)에 연결하며 밸브(30)의 내부에는 구멍(33A)을 뚫은 판밸브(33)를, 밸브(31)에는 판밸브(34)를 삽입하여 실린더(35)(36)의 피스톤로드(35A)(36A)에 의하여 상하로 이동시킬 수 있도록하고 밸브(30)에 고정한 지지판(37)에는 실린더(38)를 고정하여 콘베이어(39)에 의하여 이동되는 주조재료(40)를 실린더(38)의 플런저(38A)에 의하여 진공탱크(20)내의 용탕도가니(26)로 이동시킬 수 있도록한 것을 특징으로한 것이다.Several guide rods 4 for guiding the movable pressure plate 5 are installed on the supports 2 and 3 provided on the upper base 1, and the mold fixing plate 6 and the fixed mold ( 7), the cylinder 10 is fixed to the support 3, but the movable platen 5 is fixed to the cylinder 11 and the piston rod 10A and the support plate 12 of the cylinder 10 by fixing the cylinder 11 The product fixing pin 13 is fixed to the piston rod 11A, and the mold fixing plate 8 and the movable mold 9 are fixed to the support plate 12 to penetrate the product fixing pin 13. In the upper part of the fixed mold (7) and the movable mold (9) installed vertically connected to the vacuum pump (A) and vertically installed in the lower part of the air discharge hole (801) Position so as to be opened and closed by the plate valve 23 fixed to the piston rod 22A of the cylinder 22, and as long as the hollow shaft 25 is freely installed in the housing 24 fixed to the vacuum tank 20. The melted crucible 26 and the pinion 28 wound around the heating wire 27 are fixed to the ends of the hollow shaft 25 so that the pinion 28 fits with the rack 29A of the cylinder 29 so that the hollow shaft 25 is fixed. And a pair of valves 30 and 31 through which material injection holes 30A and 31A are drilled to the outside of the material guide plate 21 fixed to the inside of the vacuum tank 20 so as to rotate the connecting pipe 32. The air outlet pipes 20B and 32A of the vacuum tank 20 and the connecting pipe 32 are connected to the vacuum pump A, and the valve 30 having a hole 33A is formed inside the valve 30. 33, the support plate fixed to the valve 30 by inserting a plate valve 34 into the valve 31 to be moved up and down by the piston rods 35A and 36A of the cylinders 35 and 36 The casting material 40 moved by the conveyor 39 by fixing the cylinder 38 can be moved to the molten crucible 26 in the vacuum tank 20 by the plunger 38A of the cylinder 38. Feature It is.

이와같은 본 발명은 안내봉(4)을 따라 이동되는 주조제품을 성형코져할때는 실린더(10)의 피스톤로드(10A)에 고정된 가동압판(5)을 이동시켜 가동금형(9)을 고정금형(7)에 밀착시키고 공기배출구(801)와 연결된 진공펌프(가)를 작동하여 금형내의 공기를 배출시켜 진공상태로 한다음 밸브(31)의 재료투입구멍(31A)은 도3과 같이 판밸브(34)로 닫고 밸브(30)의 판밸브(33)는 열어 콘베이어(39)위의 주조재료(40)를 실린더(38)의 플런저(38A)로 밀어 연결관(32)의 내에 위치시킨다음 플런저(38A)를 후진시켜 밸브(30)의 재료투입구멍(30A)을 판밸브(33)로 닫은후 판밸브(33)의 구멍(33A)으로 실린더(38)의 플런저(38A)를 끼워 구멍(33A)을 밀폐시킨다. 이상태에서 진공펌프(가)를 작동하여 공기배출관(20B)(32A)을 통하여 공기를 외부로 배출시키고 진공탱크(20)와 연결관(32)의 내부를 대기압보다 낮은 진공상태로 한다음 밸브(31)의 판밸브(34)를 도4와 같이 상승시켜 재료투입구멍(31A)을 개방시키고 연결관(32)내의 주조재료(40)를 실린더(38)의 플런저(38A)로 밀어 진공탱크(20)내의 용탕도가니(26)내로 투입하여 용융 시킨다. 이때 재료안내판(21)에는 여러개의 주조재료(40)를 놓여지게하여 예열시켜 차례로 하나씩 용탕도가니(26)에 투하게 되며 전열선(27)에 의하여 용융된 용탕도가니(20)의 용탕은 진공탱크(20)의 용탕출구(20A)에 설치된 판밸브(23)를 열어 용탕출구(20A)를 개방시키고 실린더(29)의 랙(29A)에 의하여 피니언(28)및 중공축(25)을 회전시켜 용탕도가니(26)의 용탕을 도5와 같이 붓게되면 용탕은 진공상태의 고정금형(7)과 가동금형(9)의 내로 충입된다. 다음 진공탱크(20)의 용탕출구(20A)를 판밸로(23)로 닫아 제품을 성형한 후 도6과 같이 탈리하면 된다. 그리고 본 기계는 도7과 같이 수직이나 경사상으로 설치하여도 좋다.The present invention as described above, when molding the casting product to be moved along the guide bar (4) by moving the movable platen (5) fixed to the piston rod (10A) of the cylinder 10 to move the movable mold (9) fixed mold ( 7) and operate the vacuum pump (A) connected to the air outlet 801 to discharge the air in the mold to bring it into a vacuum state. Then, the material input hole 31A of the valve 31 is a plate valve as shown in FIG. 34) and the plate valve 33 of the valve 30 is opened and the casting material 40 on the conveyor 39 is pushed into the plunger 38A of the cylinder 38 and positioned in the connecting pipe 32. 38A is reversed to close the material injection hole 30A of the valve 30 with the plate valve 33, and then insert the plunger 38A of the cylinder 38 into the hole 33A of the plate valve 33 to insert the hole ( Seal 33A). In this state, the vacuum pump (A) is operated to discharge the air to the outside through the air discharge pipes 20B and 32A, and the inside of the vacuum tank 20 and the connection pipe 32 is brought to a vacuum lower than atmospheric pressure, and then the valve ( The plate valve 34 of 31 is raised as shown in FIG. 4 to open the material injection hole 31A, and the casting material 40 in the connecting pipe 32 is pushed into the plunger 38A of the cylinder 38 to form a vacuum tank ( Into the molten crucible 26 in 20), it is melted. At this time, a plurality of casting materials 40 are placed on the material guide plate 21 to be preheated and sprayed into the molten crucible 26 one by one, and the molten crucible 20 melted by the heating wire 27 is vacuum tank ( The valve 20 installed at the molten metal outlet 20A is opened to open the molten metal outlet 20A, and the pinion 28 and the hollow shaft 25 are rotated by the rack 29A of the cylinder 29 to melt the molten metal. When the molten metal of the crucible 26 is poured as shown in FIG. 5, the molten metal is filled into the fixed mold 7 and the movable mold 9 in a vacuum state. Next, the molten metal outlet 20A of the vacuum tank 20 is closed with a plate bellow 23 to form a product, and then detached as shown in FIG. 6. This machine may be installed vertically or inclined as shown in FIG.

이와같은 본 발명은 금형의 상부에다 진공탱크(20)를 설치하여 진공탱크(20)의 내의 용탕도가니(26)에서 용해한 용탕을 진공상태의 금형의 상부에서 주입하여 별도의 플런저를 사용하지 않고 고품질의 제품을 제공할 수 있는 효과가 있다.In the present invention, the vacuum tank 20 is installed on the upper part of the mold to inject molten metal dissolved in the molten crucible 26 in the vacuum tank 20 from the upper part of the vacuum mold so that a high quality of the mold is not used. It is effective to provide the product.

Claims (1)

기대(1)의 상부에 설치한 지지대(2)(3)에 가동압판(5)을 안내하기 위한 수개의 안내봉(4)을 설치하고 지지대(2)에는 금형고정판(6)과 고정금형(7)을, 지지대(3)에는 실린더(10)를 고정하되, 가동압판(5)에는 실린더(11)와 실린더(10)의 피스톤로드(10A)및 지지판(12)을 고정하여 실린더(11)의 피스톤로드(11A)에는 제품탈리핀(13)을, 지지판(12)에는 금형고정판(8)과 가동금형(9)을 고정하여 제품탈리핀(13)을 관통시켜서된 것에 있어서 금형고정판(8)의 하부에는 공기배출구멍(801)을 형성하여 진공펌프(가)와 연결하고 세로로 설치한 고정금형(7)과 가동금형(9)의 상부에는 기존의 진공탱크(20)의 용탕출구(20A)를 위치시켜 실린더(22)의 피스톤로드(22A)에 고정한 판밸브(23)에 의하여 개폐시킬 수 있도록하고 진공탱크(20)에 고정한 하우징(24)에는 중공축(25)을 회전자유롭게 설치하는 한편 중공축(25)의 단부에는 전열선(27)을 감은 용탕도가니(26)와 피니언(28)을 고정하여 피니언(28)은 실린더(29)의 랙(29A)과 이맞춤시켜 중공축(25)을 회전시킬 수 있도록하며 진공탱크(20)의 내부에 고정한 재료안내판(21)의 외측에는 재료투입구멍(30A)(31A)을 뚫은 한쌍의 밸브(30)(31)를 연결관(32)으로 연결하여 고정하고 진공탱크(20)와 연결관(32)의 공기배출관(20B)(32A)은 진공펌프(가)에 연결하며 밸브(30)의 내부에는 구멍(33A)을 뚫은 판밸브(33)를, 밸브(31)에는 판밸브(34)를 삽입하여 실린더(35)(36)의 피스톤로드(35A)(36A)에 의하여 상하로 이동시킬 수 있도록하고 밸브(30)에 고정한 지지판(37)에는 실린더(38)를 고정하여 콘베이어(39)에 의하여 이동되는 주조재료(40)를 실린더(38)의 플런저(38A)에 의하여 진공탱크(20)내의 용탕도가니(26)로 이동시킬 수 있도록한 것을 특징으로한 진공중력 금형주조기.Several guide rods 4 for guiding the movable pressure plate 5 are installed on the supports 2 and 3 provided on the upper base 1, and the mold fixing plate 6 and the fixed mold ( 7), the cylinder 10 is fixed to the support 3, but the movable platen 5 is fixed to the cylinder 11 and the piston rod 10A and the support plate 12 of the cylinder 10 by fixing the cylinder 11 The product fixing pin 13 is fixed to the piston rod 11A, and the mold fixing plate 8 and the movable mold 9 are fixed to the support plate 12 to penetrate the product fixing pin 13. In the upper part of the fixed mold (7) and the movable mold (9) which is connected to the vacuum pump (A) and vertically installed in the lower part of the air discharge hole (801), the molten metal outlet of the existing vacuum tank (20) The hollow shaft 25 can be freely installed in the housing 24 fixed to the vacuum tank 20 so that 20A can be opened and closed by a plate valve 23 fixed to the piston rod 22A of the cylinder 22. On the other hand, the molten crucible 26 and the pinion 28 wound around the heating wire 27 is fixed to the end of the hollow shaft 25 so that the pinion 28 fits with the rack 29A of the cylinder 29 so that the hollow shaft ( A pair of valves 30 and 31 which drill the material injection holes 30A and 31A on the outside of the material guide plate 21 fixed to the inside of the vacuum tank 20 so as to rotate the 25 and the connection pipe 32 The air outlet pipes 20B and 32A of the vacuum tank 20 and the connecting pipe 32 are connected to the vacuum pump A, and the valves having holes 33A formed therein. The support plate fixed to the valve 30 by inserting the valve 33 into the valve 31 so as to be moved up and down by the piston rods 35A and 36A of the cylinders 35 and 36. The cylinder 38 is fixed to the casting material 40 moved by the conveyor 39 to the molten crucible 26 in the vacuum tank 20 by the plunger 38A of the cylinder 38. Would have been Vacuum gravity mold casting machine characterized in that.
KR1020030071637A 2003-10-15 2003-10-15 Die casting machine of vacuum gravity KR100572581B1 (en)

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KR101013207B1 (en) * 2008-10-28 2011-02-10 고동근 Vacuum melting device of a light metal, and method of vacuum melting using the same
CN102728815A (en) * 2012-07-25 2012-10-17 福安市广源机电有限公司 Vacuum self-gravity pouring high-static pressure strong-pouring die-casting forming equipment and technique thereof
KR20230072597A (en) 2021-11-18 2023-05-25 한국생산기술연구원 Method for manufacturing rotor for an electric motor using a simple mold using gravity casting
KR20240088155A (en) 2022-12-13 2024-06-20 한국생산기술연구원 Method for manufacturing a rotor for an electric motor having a rotor skew molding method using skew mold

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KR100882666B1 (en) * 2007-07-05 2009-02-06 기아자동차주식회사 Low pressure casting machine
US10562095B2 (en) 2017-06-09 2020-02-18 Metal Casting Technology, Inc. Method and apparatus for counter-gravity mold filling

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101013207B1 (en) * 2008-10-28 2011-02-10 고동근 Vacuum melting device of a light metal, and method of vacuum melting using the same
CN102728815A (en) * 2012-07-25 2012-10-17 福安市广源机电有限公司 Vacuum self-gravity pouring high-static pressure strong-pouring die-casting forming equipment and technique thereof
CN102728815B (en) * 2012-07-25 2014-10-01 福安市广源机电有限公司 Vacuum self-gravity pouring high-static pressure strong-pouring die-casting forming equipment and technique thereof
KR20230072597A (en) 2021-11-18 2023-05-25 한국생산기술연구원 Method for manufacturing rotor for an electric motor using a simple mold using gravity casting
KR20240088155A (en) 2022-12-13 2024-06-20 한국생산기술연구원 Method for manufacturing a rotor for an electric motor having a rotor skew molding method using skew mold

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