WO2013058416A1 - Casting apparatus for chilled cast iron - Google Patents

Casting apparatus for chilled cast iron Download PDF

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Publication number
WO2013058416A1
WO2013058416A1 PCT/KR2011/007724 KR2011007724W WO2013058416A1 WO 2013058416 A1 WO2013058416 A1 WO 2013058416A1 KR 2011007724 W KR2011007724 W KR 2011007724W WO 2013058416 A1 WO2013058416 A1 WO 2013058416A1
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WO
WIPO (PCT)
Prior art keywords
shell mold
molten metal
product
mold block
plate
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PCT/KR2011/007724
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French (fr)
Korean (ko)
Inventor
안상욱
한원섭
최상구
김경식
장인성
김정수
Original Assignee
청보산업(주)
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Priority to PCT/KR2011/007724 priority Critical patent/WO2013058416A1/en
Publication of WO2013058416A1 publication Critical patent/WO2013058416A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/065—Cooling or heating equipment for moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/04—Machines or apparatus for chill casting

Definitions

  • the present invention relates to a chilled cast iron casting apparatus for manufacturing a product through a shell mold block after melting the raw material, in particular in the molten metal injecting the molten metal into the shell mold block in the ecological environment inclined the shell mold block at an angle Injecting the product to form the product, and also in forming the shell mold block, the product shell mold is provided in multiple stages, each shell shell mold by fastening the cold metal shell mold having a plurality of circular cooling plate at the bottom of the shell mold Characterized in that the block, the slope injection method to maximize the fluidity of the molten metal, as well as the chilled cast iron casting apparatus that can produce a large amount of products by maximizing the cooling effect of the molten metal quickly introduced.
  • the present invention relates to a chilled cast iron casting apparatus, iron (Fe) containing more than 2.0% of carbon is called cast iron, gray cast iron (gray cast iron, special cast iron, nodular cast iron), white cast iron when classified by graphite (C) Classify as semi-cast iron.
  • iron (Fe) containing more than 2.0% of carbon is called cast iron
  • gray cast iron gray cast iron, special cast iron, nodular cast iron
  • white cast iron when classified by graphite (C) Classify as semi-cast iron.
  • C graphite Classify as semi-cast iron.
  • the combination of gray cast iron and white cast iron is called chilled cast iron.
  • a melting furnace called an electric furnace
  • the pig iron obtained from the blast furnace is put therein, and alloy alloys such as Si, Mn, Cr, Mo, and Cu are mixed to melt.
  • the cast iron melted as described above is molded by a preformed shell mold (shell mold block), and cast iron in a cast and hardened state is scattered with flake graphite based on the structure of pearlite in which iron and cementite are layered and lined. Since the strength cannot be expected in the graphite part, the use of a coolant (cold plate) results in rapid cooling to form cementite structures of the intermetallic compound that are much harder than other parts.
  • These chilled cast irons are used as casting products in various forms.
  • the general method of molding the chilled cast iron casting product as described above includes a runner in which molten metal flows therein, a shell mold block in which a cavity through which the molten metal flows is formed to vertically penetrate the product, and the shell mold. It is a general method to cast a chilled cast iron product, which is composed of a cold plate which is installed in close contact with the cavity of the block, and the shell mold block is vertical and the molten metal is injected.
  • the metal melt is injected through the runner on the upper side of the shell mold block, the metal melt is injected into the cavity connected to the runner and hardened. After the melt is solidified, the shell mold block is opened. By separating, the product can be cast. At this time, the part in close contact with the cold plate is rapidly cooled compared to the other part by the cold plate, so that the cemented structure, which is an intermetallic compound, is made of chilled cast iron of a much harder structure than the other parts.
  • the general casting apparatus is configured such that the metal melt injected through the runner flows downward by its own weight to come into contact with the cold plate, and thus the cavity is formed in a vertical and single layer so that the amount of the cavity per unit size is increased. Since it is limited, there is a problem that the yield is very low and the working time is long.
  • the casting device is configured to allow the heat transferred to the cold sheet to escape from the center of the cold sheet to both sides, the product located at the center of the cold sheet cools later than the products at both sides, so the cooling rate is lower. There is a problem that the quality of the product is not uniform due to the difference.
  • the present invention has been made to solve the above problems, in injecting molten metal into the shell mold block, it is possible to maximize the flowability of the molten metal by injecting the molten metal in the inclined angle of the shell mold block To provide a chilled cast iron casting apparatus that can reduce the occurrence of bubbles, hot water, gas and shrinkage, which is an internal defect unique to chilled cast iron products.
  • Another object of the present invention is to maximize the cooling effect in the molten metal is introduced into the cavity to cool, even when producing a large amount of product in one injection to stabilize the formation of carbide, which is a unique metal structure of the cast iron products It is an object of the present invention to provide a chilled cast iron casting apparatus capable of improving mechanical and physical properties.
  • Rotating plate 220 is provided with a pressure cylinder 221 for pressing and fixing the shell mold block 100 at the upper end and having a rotating shaft 222 and a rotating cylinder 223 at the lower end, and the rotating shaft 222 and the rotating device portion 200 consisting of a support plate 230 for supporting the rotation cylinder 223, injecting molten metal into the shell mold block 100 to mold a product In chilled cast iron casting machine,
  • the coolant shell mold 130 has a runner 132 through which molten metal flows, and forms a seating portion 131 therein, and a cooling plate 133 on the seating portion 131.
  • Forming a shell mold block 100 by providing a 1: 1 ratio equal to the number of product cavities 121 formed in the mold 120;
  • the conveying rail 224 is provided on the pivoting plate 220 of the pivoting device 200, and a conveying plate 210 having a roller 211 moving along the conveying rail 224 is provided at a lower end thereof. Then, the shell mold block 100 is seated on the transfer plate 210 to be transferred to the rotating plate 220, fixed and tilted, and then molten metal is injected to form a product.
  • Providing a chilled cast iron casting apparatus according to the present invention mass production of chilled cast iron products, as well as injecting molten metal into the shell mold block, molten metal by injecting molten metal at a predetermined angle to the shell mold block It is possible to maximize the fluidity improvement of the product, and it can inhibit the occurrence of bubbles, hot water, gas and shrinkage, which are peculiar internal defects of the chilled cast iron products, and maximize the cooling effect of the molten metal of the cavity to carbide, which is a unique metal structure of the cast iron products. By stabilizing the formation of the chilled cast iron casting apparatus that can improve the mechanical and physical properties can be expected to effect.
  • FIG. 1 is an exploded perspective view of a shell mold block constructed by the present invention
  • FIG. 2 is a perspective view of the cooling plate is separated in the coolant shell mold in the present invention
  • FIG. 3 is an overall cross-sectional view of the shell mold block constituted by the present invention
  • Figure 4 is a side view of the shell mold block is mounted on the rotating device
  • FIG 5 is a side view of a working state in which a molten metal is injected in a state in which the rotation of the rotating device by a predetermined angle and the shell mold block is inclined at an angle.
  • FIG. 6 is a side view of a working state in which a gas suction unit rotates to suck gas in a process of molding after injecting molten metal into a shell mold block;
  • FIG. 7 is a front view of the shell mold block is mounted on the rotating device
  • FIG. 8 is a cross-sectional view showing an overall bonding state in which molten metal is injected and filled into the shell mold block.
  • a molten metal inlet 111 into which molten metal flows is formed at one side, and a molten metal shell 110 having a runner 112 through which molten metal flows is formed, and the molten metal shell 110.
  • the runner 122 is a molten metal flowing in the runner 122 is formed, and the shell mold is composed of a product shell mold 120 is formed with a product cavity 121 through which the molten metal flows into the product through the runner 122 is formed
  • the shell mold is composed of a product shell mold 120 is formed with a product cavity 121 through which the molten metal flows into the product through the runner 122 is formed
  • the product shell mold 120 is configured in multiple stages, and each of the product shell mold 120 is provided with a coolant shell mold 130, the coolant shell mold 130 is a runner (flowing molten metal) ( 132 is perforated and forms a seating portion 131 therein, and includes a plurality of cooling plates 133 on the seating portion 131 to form a shell mold block 100, and the shell mold block It provides a casting device for the chilled cast iron, characterized in that by inclining the angle 100 by the rotation device 200, injecting molten metal to mold the product.
  • FIG. 1 is an exploded perspective view of a shell mold block constituted by the present invention
  • Figure 2 is a perspective view of the cooling plate is separated from the coolant shell mold in the present invention
  • Figure 3 is a shell mold configured by the present invention
  • Figure 4 is a cross-sectional view of the entire coupling of the block
  • Figure 4 is a side view of the shell molded block seated on the rotating device
  • Figure 5 is a rotation of the rotating device is rotated by a certain angle to inject molten metal in a state in which the shell molded block is inclined at an angle
  • 6 is a side view of a working state
  • FIG. 6 is a side view of a working state in which a gas suction unit rotates and sucks gas in a molding process after injecting molten metal into a shell mold block
  • FIG. 7 shows a shell mold block seated in a rotating unit
  • 8 is a front cross-sectional view showing a state in which molten metal is injected and filled into a shell mold block
  • the present invention is characterized in that the molten metal is injected in a state in which the shell mold block 100 is inclined at a predetermined angle by the rotation device 200 as shown in the accompanying drawings.
  • the shell mold block 100 is a molded product after the molten metal is introduced and filled as shown in the accompanying drawings, the tanggu shell mold 110 and the product shell mold 120 and the coolant shell mold 130
  • the molten metal is formed in the upper and lower two stages, the molten metal inlet 111 is formed on one side, the molten metal is introduced in one side, the molten metal is introduced
  • the runner 112 which flows is formed.
  • the product shell mold 120 is fastened to the lower end of the tanggu shell mold 110, a runner 122 through which the molten metal flowing from the tanggu shell mold 110 is formed, the runner 122 is A plurality of product cavity 121 is filled is filled with molten metal flowing through.
  • coolant shell mold 130 is fastened to the bottom of the product shell mold 120,
  • the coolant shell mold 130 has a runner 132 through which molten metal can flow and is drilled on one side thereof, and a recess 131 having a groove shape is provided on the inner side thereof. Cooling plate 133 is provided.
  • the cooling plate 133 is provided in plural in a 1: 1 ratio equal to the number of product cavities 121 formed in the product shell mold 120, each cooling plate 133 is the product cavity When the molten metal is in close contact with the lower end of the 121 is filled in the product cavity 121 to be rapidly cooled by the cooling plate 133,
  • a plurality of cooling plates 133 are provided in a 1: 1 ratio equal to the number of product cavities 121.
  • the cooling plates 133 are formed in the respective product cavities 121 when the molten metal is cooled.
  • the cooling plate 133 of the product cavity 121 in which the molten metal is first introduced is heated first, and the cooling plate 133 of the product cavity 121 in which the molten metal is introduced second is not heated.
  • the thermal conductivity between the cooling plate 133 is lowered even if the molten metal is sequentially filled in the cooling plate ( 133) can be kept constant, thereby stabilizing the formation of carbide, which is a unique metal structure of the chilled cast iron product, and thus, may serve to improve mechanical and physical properties.
  • each product shell mold 120 can be configured by fastening the coolant shell mold 130 at the lower end, so that a large amount of the product can be easily produced even with a single injection of molten metal. It is efficient, so that the defect of the product can be minimized.
  • the shell mold block 100 in order to maximize the fluidity of the molten metal and minimize the defects peculiar to the cast iron product in the present invention, the shell mold block (through the rotating device 200) 100) is inclined at an angle, and then molten metal is injected.
  • the rotation device 200 is composed of a transfer plate 210, a rotation plate 220 and a support plate 230 as shown in the accompanying drawings.
  • the conveying plate 210 is a shell mold block 100 is seated and conveyed, the roller 211 is provided at the bottom and the conveying plate 210 is characterized in that each formed in a separate form, each conveying plate (210) After seating the shell mold block 100 on the top is to be transported by a separate mechanical device or the force of a person.
  • the shell mold block 100 is seated on the top of the transfer plate 210 and then transported to be seated and fixed on the rotation plate 220.
  • the transfer plate 210 rotates by the rotation of the rotation plate 220.
  • the shell mold block 100 is inclined at a predetermined angle.
  • the rotation plate 220 is provided with a pressure cylinder 221 at the upper end, a rotation shaft 222 and a rotation cylinder 223 is provided at the lower end, the lower side of the roller of the transfer plate 210 ( It is characterized in that the transfer rail 224 is provided to move 211, the pressure cylinder 221 is the shell mold block by pressing the upper surface of the shell mold block 100, that is, the upper surface of the tanggu shell mold 110 At the same time to secure the (100) to each other between the components of the shell mold block 100 serves to prevent the molten metal from leaking to the outside.
  • the rotation plate 220 is rotated about the rotation shaft 221 by the operation of the rotation cylinder 222 provided at the lower end of the rotation plate 220.
  • the support plate 230 is provided to support the other side of the rotation shaft 222 and the rotation cylinder 223.
  • the shell mold block 100 is manufactured.
  • the shell mold block 100 is manufactured by placing the coolant shell mold 130 on the transfer plate 210 and then placing the product shell mold 120 on the top thereof. After fastening and re-locking the coolant shell mold 130 at the upper end and fastening the product product shell mold 120, the product shell mold 120 and the coolant shell mold 130 are formed in multiple stages, and fastened to the top
  • the shell mold block 100 is manufactured by fastening the tanggu shell mold 110 to the upper end of the product shell mold 120.
  • a plurality of cooling plates 133 may be provided in the coolant shell mold 130, and additional injection may be performed to more easily inject molten metal into the molten metal inlet 111 of the tanggu shell mold 110.
  • the member is provided.
  • the transfer plate 210 is transferred and transferred to the rotation plate 220 provided in the rotation device 200, and the rotation plate 220.
  • the shell mold block 100 and the transfer plate 210 are fixed to the rotation plate 220 through the pressure cylinder 221 provided at the top of the).
  • the rotating cylinder 223 is operated to rotate the rotating plate 220 about the rotating shaft 222, and as a result, the shell mold block 100. ) Inclined at an angle.
  • molten metal is injected into the molten metal inlet 111 of the tanggu shell mold 110 to fill the molten metal inside the shell mold block 100.
  • the molten metal flows through molten metal injected into the molten metal inlet 111 of the molten metal shell mold 110 through the runner 112 of the molten metal shell mold 110.
  • the product flows into the runner 122 of the product shell mold 120 located at the bottom of the tanggu shell mold 110, and freely falls by the load of the molten metal to form the product shell mold 120 and the cold metal shell mold.
  • the runners 122 and 132 of 130 are introduced into the runners 122 of the product shell molds 120 located at the bottom thereof.
  • the filling is started from the lowest product cavity 121, in which case Since the shell mold block 100 is inclined at a predetermined angle, the product cavity 121 of the product shell mold 120 positioned at the top thereof is also completed before charging is completed in the product cavity 121 of the product shell mold 120 positioned at the lowermost end.
  • the flow of molten metal improves the fluidity and significantly reduces the defects peculiar to cast iron.
  • the molten metal is removed while the gas discharged from the shell mold block 100 is removed using the gas suction part 300 as shown in FIG. 6.
  • the rotating plate 220 is returned to its original state to erect the shell mold block 100, the transfer plate 210 is transferred, and the shell mold block 100 is transferred to undergo the secondary solidification process.
  • the molten metal is molded in an ecology in which the shell mold block is inclined at an angle, and the product is formed in multiple stages in forming the shell mold block.
  • a shell mold block is formed by fastening a coolant shell mold having a plurality of circular cooling plates at the bottom of each of the product shell molds, maximizing the fluidity of the molten metal by a gradient injection method, and rapidly entering the mold.
  • the present invention relates to a chilled cast iron casting device capable of producing a large amount of products by maximizing the cooling effect of molten metal, and has industrial applicability to continuously and repeatedly realize casting efficiency.

Abstract

The present invention relates to a casting apparatus for chilled cast iron which manufactures a large number of products using a shell mold block after a raw material is melted. Particularly, when molten metal is injected into the shell mold block, the molten metal is injected in a state where the shell mold block is tilted at a predetermined angle to mold products. Also, the shell mold block may be configured in multiple stages. A cooling metal shell mold including a plurality of circular cooling plates may be coupled to the lower end of each product shell mold to constitute the shell mold block. Thus, fluidity of the molten metal may be maximized through the tilted injection method, and also, the injected molten metal may be maximally cooled to produce a large number of products.

Description

칠드주철 주조장치Chilled Cast Iron Casting Equipment
본 발명은 원부재료를 용융시킨 후 쉘몰드블록을 통해 제품을 제조하는 칠드주철 주조장치에 관한 것으로, 특히 쉘몰드블록에 용융금속을 주입하는 데 있어 쉘몰드블록을 일정 각도 기울인 생태에서 용융금속을 주입하여 제품을 성형하고, 또한 쉘몰드블록을 구성하는 데 있어 제품쉘몰드를 다단으로 구비하되, 상기 제품쉘몰드 각각의 하단에 원형의 냉각플레이트를 다수 구비한 냉금제쉘몰드를 체결하여 쉘몰드블록을 구성한 것을 특징으로, 기울기 주입방식으로 용융금속의 유동성을 극대화함은 물론, 빠르게 유입된 용융금속의 냉각효과를 극대화해 다량으로 제품을 생산할 수 있는 칠드주철 주조장치에 관한 것이다.The present invention relates to a chilled cast iron casting apparatus for manufacturing a product through a shell mold block after melting the raw material, in particular in the molten metal injecting the molten metal into the shell mold block in the ecological environment inclined the shell mold block at an angle Injecting the product to form the product, and also in forming the shell mold block, the product shell mold is provided in multiple stages, each shell shell mold by fastening the cold metal shell mold having a plurality of circular cooling plate at the bottom of the shell mold Characterized in that the block, the slope injection method to maximize the fluidity of the molten metal, as well as the chilled cast iron casting apparatus that can produce a large amount of products by maximizing the cooling effect of the molten metal quickly introduced.
본 발명은 칠드주철 주조장치에 관한 것으로, 2.0%이상의 탄소를 함유하는 철(Fe)을 주철이라 하며, 흑연(C)에 의하여 분류할 경우 회주철(회주철,특수주철,구상흑연주철), 백주철, 반주철로 분류한다. 이때 회주철(편상흑연)과 백주철을 조합해서 나온 것이 칠드주철이라 하겠다.The present invention relates to a chilled cast iron casting apparatus, iron (Fe) containing more than 2.0% of carbon is called cast iron, gray cast iron (gray cast iron, special cast iron, nodular cast iron), white cast iron when classified by graphite (C) Classify as semi-cast iron. The combination of gray cast iron and white cast iron is called chilled cast iron.
일반적인 칠드주철의 주물을 제조하기 위해서는 전기로라고 하는 용해로가 사용되며, 용광로에서 얻은 선철을 여기에 넣고, Si, Mn, Cr, Mo, Cu등의 합금철을 혼합하여 용융한다. 상기과 같이 용융된 주철은 미리 조형된 쉘몰드(쉘몰드블록)에 의해 성형되는데, 주조되어 굳어진 상태의 주철에는 철과 시멘타이트가 층상을 이루고 늘어선 펄라이트라는 조직을 바탕으로 해서 편상의 흑연이 산재한다. 흑연부분에서는 강도를 기대할 수 없으므로, 냉금제(냉금판)를 사용함으로서 신속한 냉각을 이루어 다른 부분보다 훨씬 경화된 금속간 화합물의 시멘타이트 조직이 형성된다. 이러한 칠드주철은 다양한 형태의 주물제품으로 사용된다. In order to manufacture the casting of the general chilled cast iron, a melting furnace called an electric furnace is used, and the pig iron obtained from the blast furnace is put therein, and alloy alloys such as Si, Mn, Cr, Mo, and Cu are mixed to melt. The cast iron melted as described above is molded by a preformed shell mold (shell mold block), and cast iron in a cast and hardened state is scattered with flake graphite based on the structure of pearlite in which iron and cementite are layered and lined. Since the strength cannot be expected in the graphite part, the use of a coolant (cold plate) results in rapid cooling to form cementite structures of the intermetallic compound that are much harder than other parts. These chilled cast irons are used as casting products in various forms.
상기와 같은 칠드주철 주물제품을 성형하는 일반적인 방법은 내부에 용융금속이 유동하는 런너와, 상기 런너를 통해 용융금속이 유입되어 제품이 성형 되는 캐비티가 수직으로 관통형성된 쉘몰드블록과, 상기 쉘몰드블록의 캐비티 하측에 밀착설치되는 냉금판으로 구성되어, 쉘몰드블록을 수직으로 하고 용융금속을 주입하여 칠드주철 제품을 주조하는 것이 일반적인 방법이다.The general method of molding the chilled cast iron casting product as described above includes a runner in which molten metal flows therein, a shell mold block in which a cavity through which the molten metal flows is formed to vertically penetrate the product, and the shell mold. It is a general method to cast a chilled cast iron product, which is composed of a cold plate which is installed in close contact with the cavity of the block, and the shell mold block is vertical and the molten metal is injected.
이러한 칠드주철의 주조장치는 상기 쉘몰드블록 상측의 런너를 통해 금속 용융액을 주입하게 되면, 이 금속 용융액이 런너에 연통된 상기 캐비티에 주입되어 굳게 되며, 이렇게 용융액이 굳은 후, 상기 쉘몰드블록을 분리함으로써 제품을 주조할 수 있게 된다. 이때, 상기 냉금판에 밀착된 부분은 이 냉금판에 의해 다른 부분에 비하여 상대적으로 신속히 식기 때문에, 다른 부분보다 훨씬 경화된 조직의 칠드 주철로 금속간 화합물인 시멘타이트 조직이 된다.In the casting apparatus of the chilled cast iron, when the metal melt is injected through the runner on the upper side of the shell mold block, the metal melt is injected into the cavity connected to the runner and hardened. After the melt is solidified, the shell mold block is opened. By separating, the product can be cast. At this time, the part in close contact with the cold plate is rapidly cooled compared to the other part by the cold plate, so that the cemented structure, which is an intermetallic compound, is made of chilled cast iron of a much harder structure than the other parts.
하지만, 상기 일반적인 주조장치는 런너를 통해 주입된 금속 용융액이 자중에 의해 하측으로 흘러 내려가 상기 냉금판에 접촉되도록 구성되며, 이에 따라 상기 캐비티가 수직 및 단일층으로 형성되어 단위 사이즈당 캐비티의 양이 한정되므로, 생산량이 매우 저하되고 작업 시간이 길어지는 문제점이 있다. However, the general casting apparatus is configured such that the metal melt injected through the runner flows downward by its own weight to come into contact with the cold plate, and thus the cavity is formed in a vertical and single layer so that the amount of the cavity per unit size is increased. Since it is limited, there is a problem that the yield is very low and the working time is long.
또한, 상기 주조장치는 그 냉금판에 전달된 열이 냉금판의 가운데 부분으로부터 양측으로 빠져나가도록 되어 있기 때문에, 이 냉금판의 가운데 부분에 위치한 제품은 양측에 위치한 제품보다 늦게 식게 되므로, 냉각 속도의 차이 등에 의해 제품의 품질이 균일해지지 못하는 문제점이 있다.In addition, since the casting device is configured to allow the heat transferred to the cold sheet to escape from the center of the cold sheet to both sides, the product located at the center of the cold sheet cools later than the products at both sides, so the cooling rate is lower. There is a problem that the quality of the product is not uniform due to the difference.
상기와 같은 일반적인 주조장치의 문제점을 해결하고자 내부에 다수개의 캐비티가 양측 및 상하 방향으로 콤팩트하게 형성된 쉘몰드블록을 이용하여, 동일한 사이즈에 현저히 많은 양의 제품을 생산할 수 있도록 하는 주조장치가 개발되어 사용되고 있는데, 이 또한 용융금속의 유동성 문제로 제품 내부의 기공 및 수축 등의 결함이 발생함은 물론, 칠드주철의 특성상 급속히 냉각시켜야 하는데 이를 해결하기 위한 방안이 미비해 칠드주철 특유의 금속조직인 탄화물의 형성을 안정화할 수 없어 물리적 성질의 향상을 기대하기 어려운 문제점이 있다.In order to solve the problems of the general casting apparatus as described above, using a shell mold block formed with a plurality of cavities in both sides and up and down in a compact manner, a casting apparatus has been developed that can produce a significant amount of products in the same size Also, due to the fluidity problem of molten metal, defects such as pores and shrinkage inside the product, as well as the characteristics of the chilled cast iron have to be cooled rapidly, and there is no solution to solve this problem. There is a problem that cannot be expected to improve the physical properties can not be stabilized.
따라서 본 발명은 상기한 문제점을 해결하기 위해 안출한 것으로, 쉘몰드블록에 용융금속을 주입하는 데 있어, 쉘몰드블록을 일정각도 기울인 상태에서 용융금속을 주입하여 용탕의 유동성 향상을 극대화할 수 있어, 칠드주철 제품 특유의 내부 결함인 기포,탕경,가스 및 수축 등의 발생을 저하시킬 수 있는 칠드주철 주조장치를 제공하는 데 그 목적이 있다.Therefore, the present invention has been made to solve the above problems, in injecting molten metal into the shell mold block, it is possible to maximize the flowability of the molten metal by injecting the molten metal in the inclined angle of the shell mold block To provide a chilled cast iron casting apparatus that can reduce the occurrence of bubbles, hot water, gas and shrinkage, which is an internal defect unique to chilled cast iron products.
또한, 본 발명의 또 다른 목적은 용융 금속이 캐비티에 유입되어 냉각되는 데 있어, 냉각효과를 극대화하여 한 번의 주입으로 많은 양의 제품을 생산해도 칠드주철 제품의 특유 금속조직인 탄화물의 형성을 안정화하여 기계적 물리적 성질을 향상시킬 수 있는 칠드주철 주조장치를 제공하는 데 그 목적이 있다. In addition, another object of the present invention is to maximize the cooling effect in the molten metal is introduced into the cavity to cool, even when producing a large amount of product in one injection to stabilize the formation of carbide, which is a unique metal structure of the cast iron products It is an object of the present invention to provide a chilled cast iron casting apparatus capable of improving mechanical and physical properties.
상기한 목적을 달성하기 위한 본 발명은,The present invention for achieving the above object,
일측에 용융금속이 유입되는 용탕주입구(111)가 형성되어 있고 내측으로 용융금속이 유동하는 런너(112)가 형성되어 있는 탕구쉘몰드(110)와, 상기 탕구쉘몰드(110)에서 유입된 용융금속이 유동하는 런너(122)가 형성되어 있고 상기 런너(122)를 통해 용융금속이 유입되어 제품화되는 제품캐비티(121)가 다수 개 형성되어 있는 제품쉘몰드(120)와, 상기 제품쉘몰드(120)의 일측에 구비되어 용융금속의 냉각을 돕는 냉금제쉘몰드(130)로 이루어진 쉘몰드블록(100)을 구성하고,A molten metal inlet 111 formed with a molten metal flowing in one side thereof and a runner shell mold 110 in which a runner 112 through which molten metal flows is formed, and the molten metal introduced from the molten metal shell 110 is melted. The product shell mold 120 in which a runner 122 through which metal flows is formed, and a plurality of product cavities 121 through which the molten metal flows into the product through the runner 122 is formed, and the product shell mold ( Is provided on one side of 120 to form a shell mold block 100 consisting of a coolant shell mold 130 to help cooling the molten metal,
상기 쉘몰드블록(100)을 가압하여 고정하는 가압실린더(221)가 상단에 구비되어 있고 하단에는 회동축(222)과 회동실린더(223)를 구비되어 있는 회동플레이트(220)와, 상기 회동축(222)과 회동실린더(223)를 지지하기 위한 지지플레이트(230)로 이루어진 회동장치부(200)로 구성되어, 상기 쉘몰드블록(100)에 용융금속을 주입시켜 제품을 성형화하는 통상의 칠드주철 주조장치에 있어서, Rotating plate 220 is provided with a pressure cylinder 221 for pressing and fixing the shell mold block 100 at the upper end and having a rotating shaft 222 and a rotating cylinder 223 at the lower end, and the rotating shaft 222 and the rotating device portion 200 consisting of a support plate 230 for supporting the rotation cylinder 223, injecting molten metal into the shell mold block 100 to mold a product In chilled cast iron casting machine,
상기 냉금제쉘몰드(130)는 용융금속이 유동하는 런너(132)가 천공되어 있으며, 내측으로는 안착부(131)를 형성하고, 상기 안착부(131)에 냉각플레이트(133)를 제품쉘몰드(120)에 형성되어 있는 제품캐비티(121) 개수와 동일한 1:1 비율로 구비하여 쉘몰드블록(100)을 구성하는 것과;The coolant shell mold 130 has a runner 132 through which molten metal flows, and forms a seating portion 131 therein, and a cooling plate 133 on the seating portion 131. Forming a shell mold block 100 by providing a 1: 1 ratio equal to the number of product cavities 121 formed in the mold 120;
상기 회동장치부(200)의 회동플레이트(220)에 이송레일(224)을 구비하고, 상기 이송레일(224)을 따라 이동하는 롤러(211)가 하단에 구비되어 있는 이송플레이트(210)를 구비하여, 상기 이송플레이트(210)에 쉘몰드블록(100)을 안착하여 회동플레이트(220)로 이송하고 고정한 후 기울인 다음 용융금속을 주입시켜 제품을 성형화하는 것을 특징으로 한다.The conveying rail 224 is provided on the pivoting plate 220 of the pivoting device 200, and a conveying plate 210 having a roller 211 moving along the conveying rail 224 is provided at a lower end thereof. Then, the shell mold block 100 is seated on the transfer plate 210 to be transferred to the rotating plate 220, fixed and tilted, and then molten metal is injected to form a product.
본 발명에 따른 칠드주철 주조장치를 제공하면, 칠드주철 제품의 대량생산이 가능함은 물론, 쉘몰드블록에 용융금속을 주입하는 데 있어, 쉘몰드블록을 일정각도 기울인 상태에서 용융금속을 주입하여 용탕의 유동성 향상을 극대화할 수 있어, 칠드주철 제품 특유의 내부 결함인 기포,탕경,가스 및 수축 등의 발생을 저해 시킬 수 있고, 캐비티의 용융금속 냉각효과를 극대화하여 칠드주철 제품의 특유 금속조직인 탄화물의 형성을 안정화하여 기계적 물리적 성질을 향상시킬 수 있는 칠드주철 주조장치를 제공하는 효과를 기대할 수 있다.Providing a chilled cast iron casting apparatus according to the present invention, mass production of chilled cast iron products, as well as injecting molten metal into the shell mold block, molten metal by injecting molten metal at a predetermined angle to the shell mold block It is possible to maximize the fluidity improvement of the product, and it can inhibit the occurrence of bubbles, hot water, gas and shrinkage, which are peculiar internal defects of the chilled cast iron products, and maximize the cooling effect of the molten metal of the cavity to carbide, which is a unique metal structure of the cast iron products. By stabilizing the formation of the chilled cast iron casting apparatus that can improve the mechanical and physical properties can be expected to effect.
도 1은 본 발명에 의해 구성되는 쉘몰드블록의 분해 사시도 이고,1 is an exploded perspective view of a shell mold block constructed by the present invention,
도 2는 본 발명에 있어 냉금제쉘몰드에 냉각플레이트가 분리된 상태의 사시도 이며,Figure 2 is a perspective view of the cooling plate is separated in the coolant shell mold in the present invention,
도 3은 본 발명에 의해 구성되는 쉘몰드블록의 전체 결합 단면도이고,3 is an overall cross-sectional view of the shell mold block constituted by the present invention,
도 4는 쉘몰드블록이 회동장치부에 안착 된 상태의 측면도이며,Figure 4 is a side view of the shell mold block is mounted on the rotating device,
도 5는 회동장치부가 일정각도 회동하여 쉘몰드블록이 일정각도 기울어진 상태에서 용융금속을 주입하는 작업 상태의 측면도이고,5 is a side view of a working state in which a molten metal is injected in a state in which the rotation of the rotating device by a predetermined angle and the shell mold block is inclined at an angle.
도 6은 쉘몰드블록에 용융금속을 주입한 후 성형 되는 과정에서 가스흡입부가 회동하여 가스를 흡입하는 작업 상태의 측면도이며,FIG. 6 is a side view of a working state in which a gas suction unit rotates to suck gas in a process of molding after injecting molten metal into a shell mold block;
도 7은 회동장치부에 쉘몰드블록이 안착 된 상태의 정면도이고,7 is a front view of the shell mold block is mounted on the rotating device,
도 8은 쉘몰드블록에 용융금속이 주입되어 충전되는 상태를 나타낸 전체 결합 단면도이다. 8 is a cross-sectional view showing an overall bonding state in which molten metal is injected and filled into the shell mold block.
- 주요 부호 설명 --Description of major codes-
100; 쉘몰드블록 110; 탕구쉘몰드100; Shell mold block 110; Tanggu Shell Mold
111; 용탕주입구 112; 런너111; Molten metal inlet 112; Runner
120; 제품쉘몰드 121; 제품캐비티120; Product shell mold 121; Product Cavity
122; 런너 130; 냉금제쉘몰드122; Runner 130; Cold Shell Shell Mold
131; 안착부 132; 런너131; Seating portion 132; Runner
133; 냉각플레이트 200; 회동장치부133; Cooling plate 200; Rotator
210; 이송플레이트 211; 롤러210; Transfer plate 211; Roller
220; 회동플레이트 221; 가압실린더220; Rotating plate 221; Pressurized cylinder
222; 회동축 223; 회동실린더 222; Pivot 223; Rotary cylinder
224; 이송레일 230; 지지플레이트224; Transfer rail 230; Support Plate
300; 가스흡입부300; Gas suction part
본 발명은 일측에 용융금속이 유입되는 용탕주입구(111)가 형성되어 있고, 내측으로 용융금속이 유동하는 런너(112)가 형성되어 있는 탕구쉘몰드(110)와, 상기 탕구쉘몰드(110)에서 유입된 용융금속이 유동하는 런너(122)가 형성되어 있고, 상기 런너(122)를 통해 용융금속이 유입되어 제품화되는 제품캐비티(121)가 형성되어 있는 제품쉘몰드(120)로 구성된 쉘몰드블록(100)에 있어서,According to the present invention, a molten metal inlet 111 into which molten metal flows is formed at one side, and a molten metal shell 110 having a runner 112 through which molten metal flows is formed, and the molten metal shell 110. The runner 122 is a molten metal flowing in the runner 122 is formed, and the shell mold is composed of a product shell mold 120 is formed with a product cavity 121 through which the molten metal flows into the product through the runner 122 is formed In block 100,
상기 제품쉘몰드(120)를 다단으로 구성하고, 각각의 제품쉘몰드(120) 하단에 냉금제쉘몰드(130)가 구비되되, 상기 냉금제쉘몰드(130)는 용융금속이 유동하는 런너(132)가 천공되어 있으며, 내측으로는 안착부(131)를 형성하고, 상기 안착부(131)에 냉각플레이트(133)를 다수개 구비하여 쉘몰드블록(100)을 구성하고, 상기 쉘몰드블록(100)을 회동장치부(200)에 의해 일정각도 기울이게 한 후 용융금속을 주입시켜 제품을 성형화하는 것을 특징으로 하는 칠드주철의 주조장치를 제공한다. The product shell mold 120 is configured in multiple stages, and each of the product shell mold 120 is provided with a coolant shell mold 130, the coolant shell mold 130 is a runner (flowing molten metal) ( 132 is perforated and forms a seating portion 131 therein, and includes a plurality of cooling plates 133 on the seating portion 131 to form a shell mold block 100, and the shell mold block It provides a casting device for the chilled cast iron, characterized in that by inclining the angle 100 by the rotation device 200, injecting molten metal to mold the product.
이하 본 발명의 구성을 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the configuration of the present invention will be described in detail.
도 1은 본 발명에 의해 구성되는 쉘몰드블록의 분해 사시도 이고, 도 2는 본 발명에 있어 냉금제쉘몰드에 냉각플레이트가 분리된 상태의 사시도 이며, 도 3은 본 발명에 의해 구성되는 쉘몰드블록의 전체 결합 단면도이고, 도 4는 쉘몰드블록이 회동장치부에 안착 된 상태의 측면도이며, 도 5는 회동장치부가 일정각도 회동하여 쉘몰드블록이 일정각도 기울어진 상태에서 용융금속을 주입하는 작업 상태의 측면도이고, 도 6은 쉘몰드블록에 용융금속을 주입한 후 성형 되는 과정에서 가스흡입부가 회동하여 가스를 흡입하는 작업 상태의 측면도이며, 도 7은 회동장치부에 쉘몰드블록이 안착 된 상태의 정면도이고, 도 8은 쉘몰드블록에 용융금속이 주입되어 충전되는 상태를 나타낸 전체 결합 단면도로,1 is an exploded perspective view of a shell mold block constituted by the present invention, Figure 2 is a perspective view of the cooling plate is separated from the coolant shell mold in the present invention, Figure 3 is a shell mold configured by the present invention Figure 4 is a cross-sectional view of the entire coupling of the block, Figure 4 is a side view of the shell molded block seated on the rotating device, Figure 5 is a rotation of the rotating device is rotated by a certain angle to inject molten metal in a state in which the shell molded block is inclined at an angle. 6 is a side view of a working state, and FIG. 6 is a side view of a working state in which a gas suction unit rotates and sucks gas in a molding process after injecting molten metal into a shell mold block, and FIG. 7 shows a shell mold block seated in a rotating unit. 8 is a front cross-sectional view showing a state in which molten metal is injected and filled into a shell mold block,
본 발명은 첨부한 도면에서 보는 바와 같이 쉘몰드블록(100)이 회동장치부(200)에 의해 일정각도 기울어진 상태에서 용융금속이 주입되는 것을 특징으로 한다.The present invention is characterized in that the molten metal is injected in a state in which the shell mold block 100 is inclined at a predetermined angle by the rotation device 200 as shown in the accompanying drawings.
상기 쉘몰드블록(100)은 첨부한 도면에서 보는 바와 같이 용융금속이 유입되어 충전된 후 제품이 성형 되는 것으로, 탕구쉘몰드(110)와 제품쉘몰드(120) 및 냉금제쉘몰드(130)가 체결되어 이루어지는데, 상기 탕구쉘몰드(110)는 상·하 2단으로 구성되어 결합된 형태로 용융금속이 1차 유입되는 용탕주입구(111)가 일측에 형성되어 있고, 유입된 용융금속이 유동하는 런너(112)가 형성되어 있다.The shell mold block 100 is a molded product after the molten metal is introduced and filled as shown in the accompanying drawings, the tanggu shell mold 110 and the product shell mold 120 and the coolant shell mold 130 The molten metal is formed in the upper and lower two stages, the molten metal inlet 111 is formed on one side, the molten metal is introduced in one side, the molten metal is introduced The runner 112 which flows is formed.
상기 제품쉘몰드(120)는 탕구쉘몰드(110)의 하단에 체결되는 것으로, 탕구쉘몰드(110)에서 유입된 용융금속이 유동하는 런너(122)가 형성되어 있고, 상기 런너(122)를 통해 유입되는 용융금속이 충전되는 제품캐비티(121)가 다수 형성되어 있다.The product shell mold 120 is fastened to the lower end of the tanggu shell mold 110, a runner 122 through which the molten metal flowing from the tanggu shell mold 110 is formed, the runner 122 is A plurality of product cavity 121 is filled is filled with molten metal flowing through.
한편, 상기 제품쉘몰드(120) 하단으로 냉금제쉘몰드(130)가 체결되어 지는데,On the other hand, the coolant shell mold 130 is fastened to the bottom of the product shell mold 120,
상기 냉금제쉘몰드(130)는 용융금속이 유동할 수 있는 런너(132)가 일측에 천공되어 있고, 내측으로는 홈 형태의 안착부(131)가 구비되어 지는데, 상기 안착부(131)에는 냉각플레이트(133)가 구비되어 진다.The coolant shell mold 130 has a runner 132 through which molten metal can flow and is drilled on one side thereof, and a recess 131 having a groove shape is provided on the inner side thereof. Cooling plate 133 is provided.
이때 상기 냉각플레이트(133)는 상기 제품쉘몰드(120)에 형성되어 있는 제품캐비티(121)의 개수와 동일한 1:1 비율로 다수 개 구비되어, 각각의 냉각플에이트(133)가 상기 제품캐비티(121)의 하단과 밀착되어 용융금속이 제품캐비티(121)에 충전되면 냉각플레이트(133)에 의해 급속 냉각되는 것으로, In this case, the cooling plate 133 is provided in plural in a 1: 1 ratio equal to the number of product cavities 121 formed in the product shell mold 120, each cooling plate 133 is the product cavity When the molten metal is in close contact with the lower end of the 121 is filled in the product cavity 121 to be rapidly cooled by the cooling plate 133,
본 발명에 의해 냉각플레이트(133)를 제품캐비티(121)의 개수와 동일한 1:1비율로 다수 개 구비함으로써, 결과적으로 용융금속의 냉각 시 각각의 제품캐비티(121)에 냉각플레이트(133)가 구비되어, 1차적으로 용융금속이 유입된 제품캐비티(121)의 냉각플레이트(133)가 먼저 가열되고 2차적으로 용융금속이 유입된 제품캐비티(121)의 냉각플레이트(133)는 가열되지 않은 생태를 유지하게 되는 것으로, 이는 금속 간의 열 전도율에 있어 서로 분리된 냉각플레이트(133)에 의해 냉각플레이트(133) 간의 열 전도율을 저하시켜 제품캐비티(121)에 용융금속이 순차적으로 충전되더라도 냉각플레이트(133)의 역할을 일정하게 유지할 수 있어, 칠드주철제품의 특유 금속조직인 탄화물의 형성을 안정화하여 기계적 물리적 성질을 향상시키는 역할을 할 수 있다.According to the present invention, a plurality of cooling plates 133 are provided in a 1: 1 ratio equal to the number of product cavities 121. As a result, the cooling plates 133 are formed in the respective product cavities 121 when the molten metal is cooled. The cooling plate 133 of the product cavity 121 in which the molten metal is first introduced is heated first, and the cooling plate 133 of the product cavity 121 in which the molten metal is introduced second is not heated. In order to maintain the heat conductivity between the metals by the cooling plate 133 separated from each other by the cooling plate 133, the thermal conductivity between the cooling plate 133 is lowered even if the molten metal is sequentially filled in the cooling plate ( 133) can be kept constant, thereby stabilizing the formation of carbide, which is a unique metal structure of the chilled cast iron product, and thus, may serve to improve mechanical and physical properties.
아울러, 상기와 같이 제품쉘몰드(120) 하단에 냉금제쉘몰드(130)를 체결하여 냉각효과를 극대화할 수 있어, 제품쉘몰드(120)를 다단으로 구성하고 각각의 제품쉘몰드(120) 하단에 냉금제쉘몰드(130)를 체결하여 쉘몰드블록(100)을 구성할 수 있어, 용융금속 한 번의 주입으로도 다량의 제품을 생산하는데 용이함은 물론, 용융금속이 빠르게 유입되더라도 냉각효과가 효율적 이여서 제품의 결함을 최소화할 수 있게 된다.In addition, it is possible to maximize the cooling effect by fastening the coolant shell mold 130 to the bottom of the product shell mold 120 as described above, and constitutes the product shell mold 120 in multiple stages, each product shell mold 120 The shell mold block 100 can be configured by fastening the coolant shell mold 130 at the lower end, so that a large amount of the product can be easily produced even with a single injection of molten metal. It is efficient, so that the defect of the product can be minimized.
또한, 상기한 쉘몰드블록(100)에 용융금속을 주입하는 데 있어, 용융금속의 유동성을 극대화하고 주철품 특유의 결함을 최소화하기 위해 본 발명에서는 회동장치부(200)를 통해 쉘몰드블록(100)을 일정각도 기울어진 상태로 만든 후 용융금속을 주입하도록 하는데, In addition, in injecting the molten metal into the shell mold block 100, in order to maximize the fluidity of the molten metal and minimize the defects peculiar to the cast iron product in the present invention, the shell mold block (through the rotating device 200) 100) is inclined at an angle, and then molten metal is injected.
이때 상기 회동장치부(200)는 첨부한 도면에서 보는 바와 같이 이송플레이트(210)와 회동플레이트(220) 및 지지플레이트(230) 구성되어 있다.At this time, the rotation device 200 is composed of a transfer plate 210, a rotation plate 220 and a support plate 230 as shown in the accompanying drawings.
상기 이송플레이트(210)는 쉘몰드블록(100)이 안착 되어 이송하는 것으로, 하단에 롤러(211)가 구비되어 있고 이송플레이트(210)가 각각 분리된 형태로 이루어진 것이 특징이며, 각각의 이송플레이트(210) 상단에 쉘몰드블록(100)을 안착시킨 후 별도의 기계장치 또는 사람의 힘에 의해 이송하게 된다.The conveying plate 210 is a shell mold block 100 is seated and conveyed, the roller 211 is provided at the bottom and the conveying plate 210 is characterized in that each formed in a separate form, each conveying plate (210) After seating the shell mold block 100 on the top is to be transported by a separate mechanical device or the force of a person.
상기와 같이 이송플레이트(210) 상단에 쉘몰드블록(100)을 안착시킨 후 이송하여 회동플레이트(220)에 안착 고정시킨 후 회동플레이트(220)의 회동에 의해 이송플레이트(210)가 회동하면서 결과적으로 쉘몰드블록(100)이 일정각도 기울어지게 된다.As described above, the shell mold block 100 is seated on the top of the transfer plate 210 and then transported to be seated and fixed on the rotation plate 220. As a result, the transfer plate 210 rotates by the rotation of the rotation plate 220. As a result, the shell mold block 100 is inclined at a predetermined angle.
상기 회동플레이트(220)는 상단에 가압실린더(221)가 구비되어 있고, 하단으로 회동축(222)과 회동실린더(223)가 구비되어 있으며, 하측 상면에는 상기 이송플에이트(210)의 롤러(211)가 이동할 수 있는 이송레일(224)이 구비되어 지는 것을 특징으로하는데, 상기 가압실린더(221)는 쉘몰드블록(100)의 상단 즉 탕구쉘몰드(110)의 상면을 가압하여 쉘몰드블록(100)을 고정시키는 동시에 쉘몰드블록(100) 각각의 구성품 간을 밀착시켜 용융금속이 외부로 유출되는 것을 방지하는 역할을 하게 된다.The rotation plate 220 is provided with a pressure cylinder 221 at the upper end, a rotation shaft 222 and a rotation cylinder 223 is provided at the lower end, the lower side of the roller of the transfer plate 210 ( It is characterized in that the transfer rail 224 is provided to move 211, the pressure cylinder 221 is the shell mold block by pressing the upper surface of the shell mold block 100, that is, the upper surface of the tanggu shell mold 110 At the same time to secure the (100) to each other between the components of the shell mold block 100 serves to prevent the molten metal from leaking to the outside.
아울러, 회동플레이트(220)의 하단에 구비되는 회동실린더(222)의 작동에 의해 회동축(221)을 중심으로 회동플레이트(220)가 회동하게 되는 것이다.In addition, the rotation plate 220 is rotated about the rotation shaft 221 by the operation of the rotation cylinder 222 provided at the lower end of the rotation plate 220.
한편, 상기 회동축(222)과 회동실린더(223)의 타측을 지지하기 위해 지지플레이트(230)가 구비되어 진다.On the other hand, the support plate 230 is provided to support the other side of the rotation shaft 222 and the rotation cylinder 223.
이하 본 발명을 이용해 제품을 생산하는 과정을 설명하면 다음과 같다.Hereinafter, a process of producing a product using the present invention will be described.
우선 쉘몰드블록(100)을 제작하게 되는데, 상기 쉘몰드블록(100) 제작과정은 냉금제쉘몰드(130)을 이송플레이트(210) 상단에 올려놓은 후 그 상단에 제품쉘몰드(120)를 체결하고 다시 냉금제쉘몰드(130)을 그 상단에 체결하고 제차 제품쉘몰드(120)를 체결하여, 제품쉘몰드(120)와 냉금제쉘몰드(130)를 다단으로 형성하고, 최상단에 체결되는 제품쉘몰드(120)의 상단으로 탕구쉘몰드(110)를 체결하는 과정으로 쉘몰드블록(100)을 제작하게 된다. 이때 상기 냉금제쉘몰드(130)에 다수의 냉각플레이트(133)가 구비되어 있는 것은 물론이며, 탕구쉘몰드(110)의 용탕주입구(111)에 용융금속을 보다 용이하게 주입하기 위해 별도의 주입부재가 구비되는 것 또한 물론이다.First of all, the shell mold block 100 is manufactured. The shell mold block 100 is manufactured by placing the coolant shell mold 130 on the transfer plate 210 and then placing the product shell mold 120 on the top thereof. After fastening and re-locking the coolant shell mold 130 at the upper end and fastening the product product shell mold 120, the product shell mold 120 and the coolant shell mold 130 are formed in multiple stages, and fastened to the top The shell mold block 100 is manufactured by fastening the tanggu shell mold 110 to the upper end of the product shell mold 120. In this case, a plurality of cooling plates 133 may be provided in the coolant shell mold 130, and additional injection may be performed to more easily inject molten metal into the molten metal inlet 111 of the tanggu shell mold 110. Of course, the member is provided.
상기와 같이 이송플레이트(210) 상면에 쉘몰드블록(100)을 제작한 후 이송플레이트(210)를 이송시켜 회동장치부(200)에 구비된 회동플레이트(220)로 이송시키고, 회동플레이트(220)의 상단에 구비되어 있는 가압실린더(221)를 통해 쉘몰드블록(100) 및 이송플레이트(210)를 회동플레이트(220)에 고정시킨다.After the shell mold block 100 is manufactured on the transfer plate 210 as described above, the transfer plate 210 is transferred and transferred to the rotation plate 220 provided in the rotation device 200, and the rotation plate 220. The shell mold block 100 and the transfer plate 210 are fixed to the rotation plate 220 through the pressure cylinder 221 provided at the top of the).
상기와 같이 쉘몰드블록(100)을 회동플레이트(220)에 고정시킨 후 회동실린더(223)을 작동시켜 회동축(222)을 중심으로 회동플레이트(220)가 회동하면서 결과적으로 쉘몰드블록(100)을 일정각도 기울어진 상태로 만든다.After the shell mold block 100 is fixed to the rotating plate 220 as described above, the rotating cylinder 223 is operated to rotate the rotating plate 220 about the rotating shaft 222, and as a result, the shell mold block 100. ) Inclined at an angle.
상기와 같이 쉘몰드블록(100)을 일정각도 기울어진 상태로 만든 후 탕구쉘몰드(110)의 용탕주입구(111)로 용융금속을 주입하여 쉘몰드블록(100) 내측에 용융금속을 충전하게 되는데, 용융금속의 유동 과정은 첨부한 도 8에서 보는 바와 같이 1차적으로 탕구쉘몰드(110)의 용탕주입구(111)에 주입된 용융금속은 탕구쉘몰드(110)의 런너(112)를 통해 유동한 후 탕구쉘몰드(110) 하단에 위치한 제품쉘몰드(120)의 런너(122)로 유입되어 지고, 용융금속의 하중에 의해 자유낙하여 다단으로 형성된 제품쉘몰드(120) 및 냉금제쉘몰드(130)의 런너(122,132)를 지나 최하단에 위치한 제품쉘몰드(120)의 런너(122)로 유입되어 진다. After the shell mold block 100 is inclined at a predetermined angle as described above, molten metal is injected into the molten metal inlet 111 of the tanggu shell mold 110 to fill the molten metal inside the shell mold block 100. As shown in FIG. 8, the molten metal flows through molten metal injected into the molten metal inlet 111 of the molten metal shell mold 110 through the runner 112 of the molten metal shell mold 110. After that, the product flows into the runner 122 of the product shell mold 120 located at the bottom of the tanggu shell mold 110, and freely falls by the load of the molten metal to form the product shell mold 120 and the cold metal shell mold. The runners 122 and 132 of 130 are introduced into the runners 122 of the product shell molds 120 located at the bottom thereof.
상기와 같이 1차적으로 유입된 용융금속이 2차적으로 최하단에 위치한 제품쉘몰드(120)의 런너(122)로 유입된 후 최하단의 제품캐비티(121)부터 충전이 시작되는데, 이때 본 발명에 의해 쉘몰드블록(100)이 일정각도 기울어져 있어 최하단에 위치한 제품쉘몰드(120)의 제품캐비티(121)에 충전이 완료되기 전에 그 상단에 위치한 제품쉘몰드(120)의 제품캐비티(121)에도 충전이 시작되는 것으로, 이와 같은 용융금속의 유동에 의해 유동성이 향상되고 주철 특유의 결함이 현저히 줄어들게 된다. After the first molten metal introduced as described above flows into the runner 122 of the product shell mold 120 located at the lowermost second, the filling is started from the lowest product cavity 121, in which case Since the shell mold block 100 is inclined at a predetermined angle, the product cavity 121 of the product shell mold 120 positioned at the top thereof is also completed before charging is completed in the product cavity 121 of the product shell mold 120 positioned at the lowermost end. As the filling starts, the flow of molten metal improves the fluidity and significantly reduces the defects peculiar to cast iron.
한편, 상기와 같이 쉘몰드블록(100)에 용융금속을 충전 시킨 후 도 6에서 보는 바와 같이 가스흡입부(300)를 이용하여 쉘몰드블록(100)에서 배출되는 가스를 제거하면서, 용융금속을 1차적으로 응고시킨 후 회동플레이트(220)를 원 상태로 복귀시켜 쉘몰드블록(100)을 세우고, 이송플레이트(210)를 이송시켜 쉘몰드블록(100)을 이송하여 제차 응고과정을 거친 후 쉘몰드블록(100)을 분해해서 제품캐비티(121)에 형성된 제품을 분리하는 과정으로 주철 주조를 완성하게 된다.Meanwhile, after the molten metal is filled in the shell mold block 100 as described above, the molten metal is removed while the gas discharged from the shell mold block 100 is removed using the gas suction part 300 as shown in FIG. 6. After the first solidification, the rotating plate 220 is returned to its original state to erect the shell mold block 100, the transfer plate 210 is transferred, and the shell mold block 100 is transferred to undergo the secondary solidification process. By disassembling the mold block 100 to separate the product formed in the product cavity 121 is completed cast iron casting.
본 발명은 쉘몰드블록에 용융금속을 주입하는 데 있어 쉘몰드블록을 일정 각도 기울인 생태에서 용융금속을 주입하여 제품을 성형하고, 또한 쉘몰드블록을 구성하는 데 있어 제품쉘몰드를 다단으로 구비하되, 상기 제품쉘몰드 각각의 하단에 원형의 냉각플레이트를 다수 구비한 냉금제쉘몰드를 체결하여 쉘몰드블록을 구성한 것을 특징으로, 기울기 주입방식으로 용융금속의 유동성을 극대화함은 물론, 빠르게 유입된 용융금속의 냉각효과를 극대화해 다량으로 제품을 생산할 수 있는 칠드주철 주조장치에 관한 것으로, 주조 효율성을 반복 지속적으로 실현 할 수 있는 산업상 이용 가능성을 갖는다.In the present invention, injecting molten metal into the shell mold block, the molten metal is molded in an ecology in which the shell mold block is inclined at an angle, and the product is formed in multiple stages in forming the shell mold block. A shell mold block is formed by fastening a coolant shell mold having a plurality of circular cooling plates at the bottom of each of the product shell molds, maximizing the fluidity of the molten metal by a gradient injection method, and rapidly entering the mold. The present invention relates to a chilled cast iron casting device capable of producing a large amount of products by maximizing the cooling effect of molten metal, and has industrial applicability to continuously and repeatedly realize casting efficiency.

Claims (1)

  1. 일측에 용융금속이 유입되는 용탕주입구(111)가 형성되어 있고 내측으로 용융금속이 유동하는 런너(112)가 형성되어 있는 탕구쉘몰드(110)와, 상기 탕구쉘몰드(110)에서 유입된 용융금속이 유동하는 런너(122)가 형성되어 있고 상기 런너(122)를 통해 용융금속이 유입되어 제품화되는 제품캐비티(121)가 다수 개 형성되어 있는 제품쉘몰드(120)와, 상기 제품쉘몰드(120)의 일측에 구비되어 용융금속의 냉각을 돕는 냉금제쉘몰드(130)로 이루어진 쉘몰드블록(100)을 구성하고,A molten metal inlet 111 formed with a molten metal flowing in one side thereof and a runner shell mold 110 in which a runner 112 through which molten metal flows is formed, and the molten metal introduced from the molten metal shell 110 is melted. The product shell mold 120 in which a runner 122 through which metal flows is formed, and a plurality of product cavities 121 through which the molten metal flows into the product through the runner 122 is formed, and the product shell mold ( Is provided on one side of 120 to form a shell mold block 100 consisting of a coolant shell mold 130 to help cooling the molten metal,
    상기 쉘몰드블록(100)을 가압하여 고정하는 가압실린더(221)가 상단에 구비되어 있고 하단에는 회동축(222)과 회동실린더(223)를 구비되어 있는 회동플레이트(220)와, 상기 회동축(222)과 회동실린더(223)를 지지하기 위한 지지플레이트(230)로 이루어진 회동장치부(200)로 구성되어, 상기 쉘몰드블록(100)에 용융금속을 주입시켜 제품을 성형화하는 통상의 칠드주철 주조장치에 있어서,Rotating plate 220 is provided with a pressure cylinder 221 for pressing and fixing the shell mold block 100 at the upper end and having a rotating shaft 222 and a rotating cylinder 223 at the lower end, and the rotating shaft 222 and the rotating device portion 200 consisting of a support plate 230 for supporting the rotation cylinder 223, injecting molten metal into the shell mold block 100 to mold the product In chilled cast iron casting machine,
    상기 냉금제쉘몰드(130)는 용융금속이 유동하는 런너(132)가 천공되어 있으며, 내측으로는 안착부(131)를 형성하고, 상기 안착부(131)에 냉각플레이트(133)를 제품쉘몰드(120)에 형성되어 있는 제품캐비티(121) 개수와 동일한 1:1 비율로 구비하여 쉘몰드블록(100)을 구성하는 것과;The coolant shell mold 130 has a runner 132 through which molten metal flows, and forms a seating portion 131 therein, and a cooling plate 133 is formed on the seating portion 131. Forming a shell mold block 100 by providing a 1: 1 ratio equal to the number of product cavities 121 formed in the mold 120;
    상기 회동장치부(200)의 회동플레이트(220)에 이송레일(224)을 구비하고, 상기 이송레일(224)을 따라 이동하는 롤러(211)가 하단에 구비되어 있는 이송플레이트(210)를 구비하여, 상기 이송플레이트(210)에 쉘몰드블록(100)을 안착하여 회동플레이트(220)로 이송하고 고정한 후 기울인 다음 용융금속을 주입시켜 제품을 성형화하는 것을 특징으로 하는 칠드주철 주조장치.The conveying rail 224 is provided on the pivoting plate 220 of the pivoting device 200, and a conveying plate 210 having a roller 211 moving along the conveying rail 224 is provided at a lower end thereof. The cast mold casting apparatus, characterized in that the shell mold block 100 is seated on the conveying plate 210 to be transferred to the rotating plate 220, fixed and tilted, and then molten metal is injected to mold the product.
PCT/KR2011/007724 2011-10-18 2011-10-18 Casting apparatus for chilled cast iron WO2013058416A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185566A (en) * 1983-04-08 1984-10-22 Naigai Mariaburu Kk Casting method by bottom running and upsetting
KR200253442Y1 (en) * 2001-07-18 2001-11-17 조성원 tappet casting apparatus
JP2009214149A (en) * 2008-03-11 2009-09-24 Yokohama Rubber Co Ltd:The Casting apparatus
KR101037625B1 (en) * 2010-09-02 2011-05-27 청보산업(주) Casting apparatus of chilled cast iron

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185566A (en) * 1983-04-08 1984-10-22 Naigai Mariaburu Kk Casting method by bottom running and upsetting
KR200253442Y1 (en) * 2001-07-18 2001-11-17 조성원 tappet casting apparatus
JP2009214149A (en) * 2008-03-11 2009-09-24 Yokohama Rubber Co Ltd:The Casting apparatus
KR101037625B1 (en) * 2010-09-02 2011-05-27 청보산업(주) Casting apparatus of chilled cast iron

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