KR20170002592U - Multiple runner die casting mold for heat sink defect reduction - Google Patents
Multiple runner die casting mold for heat sink defect reduction Download PDFInfo
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- KR20170002592U KR20170002592U KR2020160000140U KR20160000140U KR20170002592U KR 20170002592 U KR20170002592 U KR 20170002592U KR 2020160000140 U KR2020160000140 U KR 2020160000140U KR 20160000140 U KR20160000140 U KR 20160000140U KR 20170002592 U KR20170002592 U KR 20170002592U
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- 238000004512 die casting Methods 0.000 title claims abstract description 35
- 230000007547 defect Effects 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 23
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005206 flow analysis Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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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
-
- 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
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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
- B22D17/2272—Sprue channels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
본 고안은 다이캐스팅 성형기에 고정되며 용탕이 공급되는 슬리브를 가지는 고정금형과, 고정금형에 밀착 및 이격 가능하게 상기 다이캐스팅 성형기에 결합되는 가동금형을 구비하며, 상기 고정금형과 가동금형의 밀착시에, 고정금형과 가동금형 사이에는 공간부가 형성되고, 상기 공간부는, 금속제품의 성형공간인 캐비티와, 상기 캐비티에 접속된 게이트와, 상기 슬리브로 공급되는 용탕이 상기 게이트를 통해 상기 캐비티 내로 분출되어 그 캐비티 내에 충전되도록 상기 슬리브와 게이트를 연결하는 런너를 포함하여 이루어지는 다이캐스팅 금형에 있어서, 상기 런너가 다수 개로 형성되어 상기 슬리브에서 분출된 용탕이 런너 내에서 분배되어 캐비티로 전달되는 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형에 관한 것이다. 본 고안에 따르면, 슬리브에서 여러 갈래로 분기되는 다수 개의 런너를 이용한 금형으로 기포와 표면의 불량을 80%이상 감소시킬 수 있는 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형에 관한 것이다.The present invention relates to a die casting machine having a fixed mold having a sleeve to which a molten metal is supplied and a movable mold coupled to the die casting molding machine so as to be closely contacted with and spaced from the fixed mold, A space is formed between the stationary mold and the movable mold. The space is formed by a cavity, which is a molding space for a metal product, a gate connected to the cavity, and a molten metal supplied to the sleeve, And a runner for connecting the sleeve and the gate so as to be filled in the cavity, wherein the plurality of runners are formed, and the molten metal ejected from the sleeve is distributed in the runner to be transferred to the cavity, To a multiple runner die casting mold. According to the present invention, there is provided a multiple runner die casting mold for reducing defects of bubbles and surfaces by 80% or more by using a plurality of runners which are divided into several branches in a sleeve, for reducing heat sink defects.
Description
본 고안은 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형에 관한 것으로 슬리브에서 여러 갈래로 분기되는 복수의 런너를 이용한 금형으로 기포와 표면의 불량을 80%이상 감소시킬 수 있는 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형에 관한 것이다.The present invention relates to a multiple runner die casting mold for reducing heat sink defects. It is a mold using a plurality of runners which are branched into several branches in a sleeve. It can reduce defects of bubbles and surfaces by 80% or more. Runner die casting mold.
본 고안은 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형에 관한 것이다.The present invention relates to a multiple runner die casting die for reducing heat sink defects.
히트 싱크는 자동차 및 각종 전자기기에서, 온도 상승을 방지하기 위하여 부착하는 방열체로 자동차 및 각종 전자기기에 사용되는 히트싱크는 대개 굴곡이 있는 평판형상의 제품이다. 최근 원가절감 및 설계자유도 확보를 위해 다이캐스팅으로 제조되기 시작하고 있다. A heat sink is a heat dissipating body attached to an automobile and various electronic apparatuses to prevent an increase in temperature, and a heat sink used in automobiles and various electronic apparatuses is generally a flat plate product having a curved shape. Recently, diecasting has begun to be manufactured for cost reduction and design freedom.
다이캐스팅은 다이 주조라고도 하며, 필요한 주조형상에 완전히 일치하도록 정확하게 기계 가공된 강제(鋼製)의 금형(金型)에 용융금속(熔融金屬)을 주입하여 금형과 똑같은 주물을 얻는 정밀주조법이다. 그 제품을 다이캐스트 주물이라고 한다. 치수가 정확하므로 다듬질할 필요가 거의 없는 장점 외에 기계적 성질이 우수하며, 대량생산이 가능하다는 특징이 있다. 이용되는 금속은 아연 ·알루미늄 ·주석 ·구리 ·마그네슘 등의 합금이며, 다이캐스트 주조기를 사용하여 공기압 ·수압 ·유압 등에 의해 주입하여 냉각 응고시킨다. Die casting is also known as die casting and is a precision casting method in which molten metal is injected into a steel mold that has been machined exactly to match the required casting shape to obtain the same casting as the mold. The product is referred to as die-casting. It is characterized by its excellent mechanical properties and mass production in addition to its advantage that it does not need to be finely finished because its dimensions are accurate. The metal used is an alloy of zinc, aluminum, tin, copper, magnesium and the like, and is injected by air pressure, water pressure, hydraulic pressure, etc. using a die casting machine to cool and solidify.
이러한 다이캐스팅은 제조되면서 제품 전체에 균일하게 충진될 필요가 있다. 일반적으로 다이캐스팅시 런너는 슬리브 상단에서 하나의 줄기로 출발하여 제품에 이르기 전에 여러 갈래로 갈라져 주입되게 된다. 이를 통해 게이트에서 균일한 양의 용탕이 분출되고 이는 제품 전체의 균일한 충진과 동시 충진을 도모하기 위함이다. 하지만 실제의 경우 슬리브에서 분출된 고속의 용탕이 제품에 도달하는 시간이 1초 이내로 매우 짧기 때문에 런너에서 좌우로 충분히 분산되는 시간이 부족하고 게이트를 통과하는 시점이 달라지며 이는 다양한 불량의 원인이 된다.Such a die casting needs to be uniformly filled throughout the product as it is being manufactured. Typically, during die casting, the runner starts from a single stem at the top of the sleeve and is split into several segments before reaching the product. In this way, a uniform amount of molten metal is ejected from the gate to uniformly fill and simultaneously fill the entire product. However, in reality, since the time required for the high-speed molten metal ejected from the sleeve to reach the product is very short within one second, there is not enough time for the runner to sufficiently disperse to the right and left, and the point of passage through the gate is changed, which causes various defects .
대한민국 등록실용신안공보 제20-0152430호(1999.04.27.자 등록)Korea Registered Utility Model No. 20-0152430 (registered on Apr. 27, 1999)
상술한 바와 같은 같은 문제점을 해결하기 위해 안출된 본 고안의 목적은, 슬리브에서 출발할 때부터 복수로 분기된 런너를 이용하여 캐비티에 골고루 용탕이 분배되도록 하는 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형을 제공하기 위함이다.The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a multi-runner die casting mold for reducing heat sink defects such that the molten metal is uniformly distributed to cavities using a plurality of runners, .
상기한 바와 같은 목적을 달성하기 위한 본 고안의 특징에 따르면, 본 고안은, 다이캐스팅 성형기에 고정되며 용탕이 공급되는 슬리브를 가지는 고정금형과, 고정금형에 밀착 및 이격 가능하게 상기 다이캐스팅 성형기에 결합되는 가동금형을 구비하며, 상기 고정금형과 가동금형의 밀착시에, 고정금형과 가동금형 사이에는 공간부가 형성되고, 상기 공간부는, 금속제품의 성형공간인 캐비티와, 상기 캐비티에 접속된 게이트와, 상기 슬리브로 공급되는 용탕이 상기 게이트를 통해 상기 캐비티 내로 분출되어 그 캐비티 내에 충전되도록 상기 슬리브와 게이트를 연결하는 런너를 포함하여 이루어지는 다이캐스팅 금형에 있어서, 상기 런너가 다수개로 형성되어 상기 슬리브에서 분출된 용탕이 런너 내에서 분배되어 캐비티로 전달된다.According to an aspect of the present invention, there is provided a die-casting molding machine including a stationary die fixed to a die-casting molding machine and having a sleeve to which molten metal is supplied, Wherein a space is formed between the stationary mold and the movable mold when the stationary mold and the movable mold are closely contacted with each other, the space includes a cavity as a molding space for the metal product, a gate connected to the cavity, And a runner for spraying the molten metal supplied to the sleeve into the cavity through the gate and connecting the sleeve and the gate so as to be filled in the cavity, wherein the runner is formed in a plurality of the runners, The molten metal is distributed within the runner and transferred to the cavity.
이상 살펴본 바와 같은 본 발명에 따르면, 슬리브에서 출발할 때부터 복수로 분기된 런너를 이용하여 캐비티에 골고루 용탕이 분배되도록 하는 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형을 제공할 수 있다.As described above, according to the present invention, it is possible to provide a multiple runner die casting mold for reducing defects of a heat sink to distribute the molten metal evenly to the cavity using a plurality of branched runners from the beginning of the sleeve.
도 1은 일반적인 히트싱크의 개념도이다.
도 2는 기존의 단수개의 런너 다이캐스팅의 개념도이다.
도 3은 기존의 단수개의 런너 다이캐스팅 방안으로 주조되는 히트싱크의 열 유동 해석 개념도이다.
도 4는 본 고안의 바람직한 실시예에 따른 복수 런너 다이캐스팅 방안을 나타낸 개념도이다.
도 5는 본 고안의 바람직한 실시예로 주조될 수 있는 히트싱크의 예시도이다.
도 6은 본 고안의 바람직한 실시예로 주조될 수 있는 히트싱크의 열 유동 해석 개념도이다.
도 7은 본 고안의 바람직한 실시예에 따른 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형의 고정측 사시도이다.
도 8은 본 고안의 바람직한 실시예에 따른 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형의 가동측 사시도이다.
도 9은 본 고안의 바람직한 실시예에 따른 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형의 고정측 사진이다.
도 10은 본 고안의 바람직한 실시예에 따른 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형의 가동측 사진이다.
도 11은 본 고안의 바람직한 실시예에 따른 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형의 합형 사진이다.1 is a conceptual view of a general heat sink.
2 is a conceptual diagram of a conventional single runner die casting.
3 is a conceptual view of a heat flow analysis of a heat sink cast in a conventional single runner die casting method.
4 is a conceptual diagram showing a multiple runner die casting method according to a preferred embodiment of the present invention.
5 is an exemplary view of a heat sink that can be cast as a preferred embodiment of the present invention.
6 is a conceptual view of a heat flow analysis of a heat sink that can be cast as a preferred embodiment of the present invention.
7 is a perspective view of a fixed side of a multiple runner die casting mold for reducing heat sink failure according to a preferred embodiment of the present invention.
8 is a movable side perspective view of a multiple runner die casting mold for reducing heat sink failure according to a preferred embodiment of the present invention.
9 is a photograph of a fixed side of a multiple runner die casting mold for reducing heat sink failure according to a preferred embodiment of the present invention.
10 is a photograph of the movable side of the multiple runner die casting mold for reducing heat sink failure according to a preferred embodiment of the present invention.
11 is a composite photograph of a multiple runner die casting mold for reducing heat sink failure according to a preferred embodiment of the present invention.
본 고안은 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형에 관한 것으로 복수의 런너를 이용한 금형으로 기포와 표면의 불량을 80%이상 감소시킬 수 있는 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형에 관한 것이다.The present invention relates to a multiple runner die casting mold for reducing heat sink defects, and more particularly, to a multiple runner die casting mold for reducing defects of bubbles and surfaces by 80% or more with a plurality of runners for reducing heat sink defects.
주조방법중의 하나인 다이캐스트법은 용탕을 대기압이상의 압력으로 소정 형상의 금형에 압입하고 응고 종료까지 가압하여 주조하는 것을 말한다. 이러한 다이캐스트법은 치수의 정밀도 향상, 표면의 평활도 유지, 절삭 가공의 절감 및 고속 대량생산이 가능하다는 이점이 있어 널리 사용되고 있다.One of the casting methods, the die casting method, refers to casting a molten metal by pressurizing the molten metal at a pressure of atmospheric pressure or higher and pressing it until completion of solidification. Such a die casting method is widely used because it has the advantage of improving the dimensional accuracy, maintaining the smoothness of the surface, cutting cutting work, and high-speed mass production.
일반적으로 다이캐스팅시 런너는 슬리브 상단에서 하나의 줄기로 출발하여 제품에 이르기 전에 여러 갈래로 갈라져 주입되게 된다. 이를 통해 게이트에서 균일한 양의 용탕이 분출되고 이는 제품 전체의 균일한 충진과 동시 충진을 도모하기 위함이다. 하지만, 실제의 경우 슬리브에서 분출된 고속의 용탕이 제품이 도달하는 시간이 1초 이내로 매우 짧기 때문에 런너에서 좌우로 충분히 분산되는 시간이 부족하고 게이트를 통화하기 시점이 달라지고 다양한 불량의 원인이 된다. 이렇듯, 제품 좌우에 충진되는 시간차이가 발생하면 제품 내부의 공기 배출이 용이하지 못하여 기포가 발생하고 응고시간의 차이 등으로 인하여 표면에 주름이 발생하는 등의 불량이 발생한다. Typically, during die casting, the runner starts from a single stem at the top of the sleeve and is split into several segments before reaching the product. In this way, a uniform amount of molten metal is ejected from the gate to uniformly fill and simultaneously fill the entire product. However, in reality, since the high-speed molten metal ejected from the sleeve has a very short time to reach the product within one second, there is not enough time for the runner to sufficiently disperse to the right and left, . In this way, if time difference is filled between the left and right sides of the product, the air inside the product is not easily discharged, and bubbles are generated, and a defect such as wrinkles on the surface occurs due to a difference in coagulation time.
이러한 문제점을 해결하기 위해 발명자는 다양한 형상으로 런너를 변경해가면 동시 충진을 검토했으나 하나의 런너에서 출발하여 제품에 도달하기 전에 다수의 런너로 분기하여 제품을 동시에 충진하도록 설계할 수 없었다. 그 이유는 전술한 바와 같이 다이캐스팅 공정이 매우 짧은 시간에 이루어지므로 슬리브에서 분출된 고속의 용탕이 제품에 이르기 전에 런너 내에서 분배될 수 있는 충분한 시간을 확보할 수 없기 때문이다. In order to solve these problems, the inventor studied the simultaneous filling by changing the runner in various shapes. However, the inventor could not design the product to be filled at the same time by branching to a plurality of runners before starting from one runner. This is because the die casting process is performed in a very short time, as described above, so that it is not possible to secure sufficient time for the high-speed molten metal ejected from the sleeve to be distributed in the runner before reaching the product.
상기한 바와 같은 목적을 달성하기 위한 본 고안의 특징에 따르면, 본 고안은, 슬리브에서 출반할 때부터 복수로 분기된 런너를 포함한다. 이는 한줄기에서 다수로 분기되기에는 시간이 부족하기 때문에 슬리브에서 다수로 분기되어 분출되어 근본적으로 문제를 해결하기 위함이다. 이와 같이 설계하여 기포와 표면의 불량을 80% 이상 감소시킬 수 있었다. According to an aspect of the present invention for achieving the above-described object, the present invention includes a plurality of runners branched from a sleeve. This is because there is not enough time to branch from one to many, so it is branched out to a large number in the sleeve to fundamentally solve the problem. By this design, defects of bubble and surface could be reduced by 80% or more.
Claims (1)
상기 런너가 다수 개로 형성되어 상기 슬리브에서 분출된 용탕이 런너 내에서 분배되어 캐비티로 전달되는 히트싱크 불량저감을 위한 복수 런너 다이캐스팅 금형.A fixed mold having a sleeve fixed to a die casting molding machine and having a sleeve to which molten metal is supplied; and a movable mold coupled to the die casting molding machine so as to be closely contacted with and spaced from the fixed mold, wherein when the fixed mold and the movable mold are closely contacted, A space is formed between the movable molds, and the space includes a cavity which is a molding space for the metal product, a gate connected to the cavity, and a molten metal supplied to the sleeve, into the cavity through the gate, And a runner for connecting the sleeve and the gate to each other,
Wherein a plurality of the runners are formed, and the molten metal ejected from the sleeve is distributed in the runner and transferred to the cavity, thereby reducing the defect of the heat sink.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045163A (en) * | 2020-09-21 | 2020-12-08 | 菲斯达精密工业部件（苏州）有限公司 | A new casting system for die-casting molds of large 5G communication radiator parts |
| KR20210142429A (en) | 2020-05-18 | 2021-11-25 | 주식회사 바낙스 | Die casting mold for drive gear of spinning reel |
| CN113770327A (en) * | 2021-08-04 | 2021-12-10 | 金榀精密工业(苏州)有限公司 | Tree-shaped shunting type die-casting forming structure |
| CN113787180A (en) * | 2021-07-28 | 2021-12-14 | 金榀精密工业(苏州)有限公司 | Multidirectional inflow type door closer forming structure |
| CN115889727A (en) * | 2022-10-31 | 2023-04-04 | 宁波精磊机械有限公司 | A die-casting mold for shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200152430Y1 (en) | 1996-03-20 | 1999-07-15 | 정명식 | Die Casting Device |
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2016
- 2016-01-08 KR KR2020160000140U patent/KR20170002592U/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200152430Y1 (en) | 1996-03-20 | 1999-07-15 | 정명식 | Die Casting Device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210142429A (en) | 2020-05-18 | 2021-11-25 | 주식회사 바낙스 | Die casting mold for drive gear of spinning reel |
| CN112045163A (en) * | 2020-09-21 | 2020-12-08 | 菲斯达精密工业部件（苏州）有限公司 | A new casting system for die-casting molds of large 5G communication radiator parts |
| CN113787180A (en) * | 2021-07-28 | 2021-12-14 | 金榀精密工业(苏州)有限公司 | Multidirectional inflow type door closer forming structure |
| CN113770327A (en) * | 2021-08-04 | 2021-12-10 | 金榀精密工业(苏州)有限公司 | Tree-shaped shunting type die-casting forming structure |
| CN115889727A (en) * | 2022-10-31 | 2023-04-04 | 宁波精磊机械有限公司 | A die-casting mold for shell |
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