KR20080065144A - The temperature control system for diecasting machine sleeve - Google Patents

The temperature control system for diecasting machine sleeve Download PDF

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Publication number
KR20080065144A
KR20080065144A KR1020070002164A KR20070002164A KR20080065144A KR 20080065144 A KR20080065144 A KR 20080065144A KR 1020070002164 A KR1020070002164 A KR 1020070002164A KR 20070002164 A KR20070002164 A KR 20070002164A KR 20080065144 A KR20080065144 A KR 20080065144A
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South Korea
Prior art keywords
sleeve
machine sleeve
machine
control system
temperature control
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KR1020070002164A
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Korean (ko)
Inventor
강충길
성장현
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동아대학교 산학협력단
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Priority to KR1020070002164A priority Critical patent/KR20080065144A/en
Publication of KR20080065144A publication Critical patent/KR20080065144A/en

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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
    • B22D17/32—Controlling equipment
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

A temperature control system of a die-casting machine sleeve is provided to improve durability and productivity by controlling a temperature of molten metal constantly during a casting process. A temperature control system of a die-casting machine sleeve comprises: a heating line(2) and a cooling line(2) that are provided between inner and outer diameters(Phid,PhiD) of a machine sleeve(1), where the inner and outer diameters are determined according to a size of a casting machine. The heating and cooling lines are alternatively provided at a portion except for a molten metal inlet(4) in order to keep a constant temperature. The temperature control system can keep temperature of the molten metal and machine sleeve even if a filling rate of the sleeve is over 50% during a casting process.

Description

다이캐스팅 머신슬리브의 온도제어 시스템{The temperature control system for diecasting machine sleeve}The temperature control system for diecasting machine sleeve}

도 1은 기존 다이캐스팅 머신슬리브의 구성을 보인 사시도1 is a perspective view showing the configuration of a conventional die casting machine sleeve

도 2는 기존 다이캐스팅 머신슬리브의 단면도 및 측단면도2 is a cross-sectional and side cross-sectional view of an existing die casting machine sleeve.

도 3은 본 발명에서 제공하는 온도제어 시스템이 적용된 머신슬리브의 사시3 is a perspective view of a machine sleeve to which the temperature control system provided by the present invention is applied.

도Degree

도 4는 본 발명에서 제공하는 온도제어 시스템이 적용된 머신슬리브의 단면4 is a cross-sectional view of a machine sleeve to which the temperature control system provided by the present invention is applied.

도 및 측단면도Degrees and Side Sections

◀도면의 주요 부분에 사용된 주요 부호의 설명▶◀ Description of the main symbols used in the main parts of the drawing ▶

1: 머신슬리브 2: 가열라인1: machine sleeve 2: heating line

2: 냉각라인 4: 용탕주입구2: cooling line 4: molten metal inlet

본 발명은 다이캐스팅 머신슬리브의 온도제어 시스템에 관한 것으로서, 더욱 상세히는 알루미늄(Al), 마그네슘(Mg), 아연(Zn), 구리(Cu) 등의 비철금속 합금을 이용하여 성형품을 제조하는 주조기인 다이캐스팅 머신에 적용되는 머신슬리브를 성형품의 재료로 사용되는 용융금속의 용탕을 머신슬리브 내에서 온도제어를 위하여 온도제어 시스템을 적용한 것으로써, 가열라인과 냉각라인을 별도로 설치하여 머신슬리브의 내부에 급탕되는 용융금속인 용탕의 온도가 급격히 떨어지는 것을 방지하고, 온도의 하강으로 인하여 고형화 된 용융금속이 성형품을 성형시키는 금형의 내부로 주입되지 않도록 성형공정에서 방지토록 한 다이캐스팅 머신슬리브의 온도제어 시스템을 제공코자 하는 것이다.The present invention relates to a temperature control system of a die casting machine sleeve, and more particularly, die casting, which is a casting machine for manufacturing a molded product using nonferrous metal alloys such as aluminum (Al), magnesium (Mg), zinc (Zn), and copper (Cu). The molten metal used as the material of the molded product is applied to the machine by applying the temperature control system for temperature control in the machine sleeve.The heating and cooling lines are installed separately to supply the hot water inside the machine sleeve. To provide a temperature control system for die casting machine sleeves that prevents the temperature of molten metal from rapidly falling and prevents the solidified molten metal from being injected into the mold for molding the molded product due to the drop in temperature. It is.

알루미늄(Al), 마그네슘(Mg), 아연(Zn), 구리(Cu) 등의 비철금속 합금은 용융온도가 일반적인 철금속 합금에 비하여 낮아 고체 → 액체 → 고체로 상변태 하는 것이 쉬워 주로 주조공법을 이용하여 소정의 제품으로 성형하게 된다.Nonferrous metal alloys such as aluminum (Al), magnesium (Mg), zinc (Zn), and copper (Cu) have a lower melting temperature than ordinary ferrous alloys, making it easy to phase change from solid to liquid to solid. It is molded into a predetermined product.

이때 적용되는 주조공법에는 주로 다이캐스팅, 스퀴즈캐스팅, 중압주조 등이 있으며, 이들 주조공법을 적용하기 위하여 특별히 설계된 주조머신을 이용하게 된다.At this time, the casting method applied mainly includes die casting, squeeze casting, medium pressure casting, etc., and a casting machine specially designed to apply these casting methods is used.

주조공법은 성형을 위한 금형과, 금형을 취부하여 용융금속을 금형의 캐비티(cavity)로 주입시키기 위한 주조사출부와, 성형된 제품을 금형으로부터 취출하는 이젝팅부로 구성이 되는 주조머신을 사용하게 된다.The casting method uses a casting machine consisting of a mold for molding, a casting ejection portion for mounting a mold and injecting molten metal into a cavity of the mold, and an ejecting portion for ejecting the molded product from the mold. do.

성형을 위하여 용융된 비철금속 합금을 전처리를 통하여 청정작업을 한 뒤, 성형을 위하여 주조머신에 공급이 된다.The molten nonferrous metal alloy is cleaned by pretreatment for molding and then supplied to the casting machine for molding.

이때 가장 먼저 용탕을 공급받는 곳이 머신슬리브이다. 머신슬리브는 주조사출부의 사출실린더의 팁이 머신슬리브의 내경을 슬라이딩하면서 움직이고 이 움직임을 제어하여 공급된 용융금속을 금형의 캐비티 속으로 주입시키게 되어 성형품이 성형되는 주조공정이다.At this time, the first place where the molten metal is supplied is the machine sleeve. The machine sleeve is a casting process in which a molded product is molded by injecting a molten metal into the cavity of a mold by controlling the movement of the tip of the injection cylinder's injection cylinder while sliding the inner diameter of the machine sleeve.

이때 가장 먼저 용융금속을 공급받는 머신슬리브는 아래의 기능을 가져야 한다.The first machine sleeve supplied with molten metal should have the following functions.

1) 공급되는 용탕이 머신슬리브 내에서 고형화로 굳어 버리지 않도록 일정한 온도를 유지해야 한다.1) The molten metal must be kept at a constant temperature to prevent it from solidifying in the machine sleeve.

2) 용융금속과 머신슬리브 내경과는 금속간의 친화성을 방지하고 주조사출부의 사출실린더의 팁이 원활하게 움직이게 하기 위하여 내경은 표면거칠기 값이 적어야 한다.2) In order to prevent the affinity between the molten metal and the inner diameter of the machine sleeve and to smoothly move the tip of the injection cylinder of the casting part, the inner diameter should have a low surface roughness value.

3) 머신슬리브는 고온의 용융금속을 짧은 시간동안 유지하지만, 온도의 변화폭이 크기 때문에 열적으로 안정된 소재를 적용하여 제작되어야 한다.3) Machine sleeves keep hot molten metal for a short time, but due to the large change in temperature, they should be manufactured with thermally stable materials.

4) 공급되는 용탕의 냉각을 방지하기 위하여 머신슬리브를 예열하고 예열된 머신슬리브의 온도가 떨어지지 않도록 온도를 일정하게 유지해야 한다.4) Preheat the machine sleeve and keep the temperature constant so that the temperature of the preheated machine sleeve does not fall in order to prevent cooling of the melt supplied.

이상의 특징을 가지는 머신슬리브는 사용되는 주조머신의 크기에 따라서 그 내경과 외경 및 길이가 결정이 되고 있으며, 열적으로 안정한 소재를 사용하여 온도의 변화를 최소화함으로써 머신슬리브의 수명연장 효과를 얻을 수 있으며, 궁극적으로는 주조 생산성 향상을 얻을 수 있다.Machine sleeves with the above characteristics are determined according to the size of the casting machine used. The inner and outer diameters and lengths are determined, and the thermally stable material can be used to minimize the change in temperature, thereby extending the life of the machine sleeves. Ultimately, casting productivity can be improved.

한편, 도 1,2는 기존의 다이캐스팅 머신슬리브(1)의 구성을 보인 도면으로, 머신슬리브(1)의 아래쪽에만 두 개의 냉각라인(2)이 형성되어 있다.On the other hand, Figures 1 and 2 is a view showing the configuration of a conventional die casting machine sleeve 1, two cooling lines 2 are formed only below the machine sleeve (1).

이와 같은 기존의 머신슬리브(1)는 공급되는 용탕의 온도제어는 거의 불가능하고 용탕에 의하여 변화되는 머신슬리브의 온도를 일정하게 유지 할 수 없다는 문제점을 안고 있었던 것이다.Such a conventional machine sleeve (1) had a problem that it is almost impossible to control the temperature of the supplied molten metal and to maintain a constant temperature of the machine sleeve changed by the molten metal.

본 발명은 다이캐스팅 머신슬리브의 온도제어 시스템을 제공코자 하는 것으로서, 주조공정에서의 용융금속의 온도를 일정하게 제어함으로써 머신슬리브의 수명향상과 높은 생산성을 제공할 수 있는 다이캐스팅 머신슬리브의 온도제어 시스템을 제공함에 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.An object of the present invention is to provide a temperature control system for a die casting machine sleeve. The present invention provides a temperature control system for a die casting machine sleeve that can improve the life of the machine sleeve and provide high productivity by controlling the temperature of molten metal in a casting process. The present invention has been completed in view of the technical problem of the present invention.

이하 본 발명을 상세히 설명키로 한다. 단, 종래 구성과 동일 구성부재는 동일부호를 사용하여 설명키로 한다.Hereinafter, the present invention will be described in detail. However, the same constituent members as in the conventional configuration will be described using the same reference numerals.

본 발명은 상기한 기술적 과제를 달성하기 위해 다이캐스팅 머신슬리브의 온도제어 시스템은 가열라인과 냉각라인을 각각 설치하여 하나의 머신슬리브에서 온도제어를 할 수 있도록 한 것을 특징으로 한다.The present invention is characterized in that the temperature control system of the die-casting machine sleeve is installed in each of the heating line and cooling line to control the temperature in one machine sleeve to achieve the above technical problem.

또한 본 발명의 바람직한 실시예에 의하면, 다이캐스팅 머신슬리브(1)의 가열라인(2)은 열매체유 혹은 고온의 스팀이 유동할 수 있도록 입구와 출구로 구성되 는 것을 기술적 특징으로 한다.In addition, according to a preferred embodiment of the present invention, the heating line (2) of the die casting machine sleeve (1) is characterized by consisting of the inlet and outlet so that the thermal oil or hot steam flows.

그리고 냉각라인(3)은 냉수 혹은 미스트-쿨링(Mist-cooling)을 적용하여 냉각라인으로 구성되는 것을 기술적 특징으로 한다.And the cooling line (3) is characterized by being configured as a cooling line by applying cold water or mist-cooling (Mist-cooling).

실시예에 의하면, 가열라인(2) 혹은 냉각라인(3)은 머신슬리브(1)의 내경과 외경의 중간에 위치하고, 서로 교차되게 구성되는 것을 기술적 특징으로 한다.According to the embodiment, the heating line 2 or the cooling line 3 is located in the middle of the inner diameter and the outer diameter of the machine sleeve 1, and is characterized by being configured to cross each other.

실시예에 의하면, 상기 가열라인(2) 혹은 냉각라인(3)은 머신슬리브(1)의 용탕주입구(4)를 제외한 전 둘레에 위치하는 것을 기술적 특징으로 한다.According to the embodiment, the heating line 2 or the cooling line 3 is characterized in that it is located around the periphery except the molten metal inlet 4 of the machine sleeve (1).

이하에서는 첨부 도면에 도시된 실시예에 기초하면서, 본 발명에 대하여 더욱 상세하게 설명하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings.

도 3,4는 본 발명의 다이캐스팅 머신슬리브(1)의 온도제어 시스템을 도시한 것으로서, 일반적으로 주조머신에 적용되는 머신슬리브(1)의 형상과 그 형상에서 본 발명의 온도제어 시스템이 적용된 실시예를 보이고 있다.3 and 4 show the temperature control system of the die-casting machine sleeve 1 of the present invention, in which the temperature control system of the present invention is applied to the shape and shape of the machine sleeve 1 generally applied to a casting machine. An example is shown.

즉, 머신슬리브(1)의 내경(Ød)과 외경(ØD)의 중간에 위치한 가열라인(2)과 냉각라인(3)은 동심의 원주를 형성하면서 상호 교차되는 순서로 위치하는 것을 도시하고 있으며, 용탕주입구(4)를 제외한 급탕되는 용탕의 양이 머신슬리브(1)의 50% 이상이 되어도 온도제어를 할 수 있는 구조가 적용된 실시예를 보이고 있다.That is, the heating line (2) and the cooling line (3) located in the middle of the inner diameter (Ød) and the outer diameter (ØD) of the machine sleeve 1 is located in the order of intersection with each other forming a concentric circumference. Even if the amount of the molten hot water excluding the molten metal inlet 4 is 50% or more of the machine sleeve 1, a structure capable of temperature control is shown.

이상에서 살펴 본 바와 같은 본 발명에 의한 기본적인 기술적 사상의 범주 내에서, 당해 업계의 통상의 지식을 가진 기술자에게 있어서는 다른 많은 변형이 가능할 것이다. 그리고 본 발명은 첨부한 특허청구범위에 기초하여 해석되어야 할 것이다.Within the scope of the basic technical idea according to the present invention as described above, many other modifications will be possible to those skilled in the art. And the present invention should be interpreted based on the appended claims.

이상에서 살펴본 바와 같이 본 발명에 의하면, 머신슬리브(1)의 기능적 측면에서의 수명 향상과 기능적 측면에서의 공급되는 용탕의 온도제어를 위한 머신슬리브의 온도제어를 통해 머신슬리브의 기능을 획기적으로 개선할 수 있는 것이다.As described above, according to the present invention, the function of the machine sleeve is drastically improved by improving the service life of the machine sleeve 1 and the temperature control of the machine sleeve for controlling the temperature of the molten metal supplied from the functional aspect. You can do it.

또한, 본 발명에 의하여 구성되는 온도제어 시스템은 고압주조용 다이캐스팅 머신의 머신슬리브, 스퀴즈캐스팅의 머신슬리브, 중압주조용 머신슬리브 등 주조장비에 적용되는 모든 머신슬리브에 적용이 가능하며, 일반적인 냉각시스템을 비롯한 미스트-쿨링(Mist-cooling) 장비와 조합하여 사용함으로써 그 효과를 획기적으로 개선할 수 있는 것이다.In addition, the temperature control system configured by the present invention is applicable to all machine sleeves applied to the casting equipment, such as machine sleeves of high-pressure casting die casting machine, machine sleeves of squeeze casting, machine tools for medium pressure casting, general cooling system In combination with the mist-cooling (Mist-cooling) equipment, such effects can be significantly improved.

Claims (1)

주조머신의 크기에 맞추어 결정되는 머신슬리브(1)의 내경(Ød)과 외경(ØD) 중간위치에 가열라인(1)과 냉각라인(2)이 용탕주입구(4)를 제외한 부위에 서로 교차되는 순서로 형성되어 일정한 온도를 유지토록 하며, 주조공정에서의 슬리브 충전율이 50%를 넘어도 용융금속 및 머신슬리브의 온도를 유지할 수 있도록 한 것을 특징으로 하는 다이캐스팅 머신슬리브의 온도제어 시스템.The heating line (1) and the cooling line (2) intersect each other except the molten metal inlet (4) at an intermediate position between the inner diameter (Ød) and the outer diameter (ØD) of the machine sleeve 1 determined according to the size of the casting machine. Formed in order to maintain a constant temperature, the temperature control system of the die casting machine sleeve, characterized in that to maintain the temperature of the molten metal and machine sleeve even if the sleeve filling rate in the casting process exceeds 50%.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200022198A (en) * 2018-08-22 2020-03-03 현대자동차주식회사 Apparatus and method for high-pressure die casting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200022198A (en) * 2018-08-22 2020-03-03 현대자동차주식회사 Apparatus and method for high-pressure die casting

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