JP2008080391A - Built-in chill vent and method for discharging gas from die cast - Google Patents

Built-in chill vent and method for discharging gas from die cast Download PDF

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JP2008080391A
JP2008080391A JP2006266498A JP2006266498A JP2008080391A JP 2008080391 A JP2008080391 A JP 2008080391A JP 2006266498 A JP2006266498 A JP 2006266498A JP 2006266498 A JP2006266498 A JP 2006266498A JP 2008080391 A JP2008080391 A JP 2008080391A
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cavity
chill
built
gas
vent
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Giyokujun Sei
玉順 成
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Japan Mold Trade
JAPAN MOLD TRADE KK
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Japan Mold Trade
JAPAN MOLD TRADE KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a built-in chill vent, which can shorten the length of a chill block to render the built-in chill vent compact and can realize mounting of the built-in chill vent on the inner side of a cavity, and to provide a method for discharging gas from a die cast, which comprises mounting a built-in chill vent on the inner side and outer side of a cavity and discharging air and gas within the cavity from the inner side and outer side thereof to provide a good annular cast product. <P>SOLUTION: A continuous mountain-shaped venting airway 3 is provided on a face where size-reduced female chill block 1 and a male chill block 2 are provided opposite to each other. A folding part 3a is provided at a position intermediate between the mountain-shaped venting airways. A spot cooling means is provided on the pair of chill blocks 1, 2. For discharging gas from a die cast, this chill vent is provided on the inner side and outer side of the cavity to allow the air and gas within the cavity to be discharged from the inner side and outer side of the cavity in filling a molten metal into the cavity. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明はダイキャストの金型内部のガス抜きを行う内蔵型チルベントに関すると共に、内側に空間を有する環状のダイキャストのガス排出方法に関する。   The present invention relates to a built-in chill vent that vents gas inside a die-cast mold, and also relates to an annular die-cast gas discharge method having a space inside.

一般にチルベントはダイキャスト鋳造に於いて、キャビティ内部に残された空気やガスによって発生する諸問題、例えば、フクレやガスホール等の欠陥の発生,部分的な充填不足,湯皺の発生,細かい彫刻文字がきれいに出ない,機械加工後の気密漏れがなくならない,機械加工時に切削面へ巣が生じる等の欠点を解決するために使用されている。このチルベントは、金型のキャビティに連通させると共にガス抜き通気路の出口側が金型の外部に連通するように接続されて取付けられていた。   In general, chill vents have various problems caused by air and gas left inside the cavity in die casting, such as defects such as blisters and gas holes, partial incomplete filling, hot water pouring, and fine engraving. It is used to solve the drawbacks such as letters that do not appear clean, airtight leaks after machining, and nests formed on the cutting surface during machining. This chill vent is connected and attached so as to communicate with the cavity of the mold and so that the outlet side of the gas vent passage communicates with the outside of the mold.

又、このチルベントの取付けは図6に示すように、キャビティ(8)の外側に取付け、ガス抜き通気路(3)の出口側を金型の外部に連通させる。このため、鋳造する際には、キャビティ(8)に溶湯(10)を充填させながら、キャビティ(8)内部の空気やガスを従来のチルベント(B)が介在されて金型外部に排出すると共にキャビティ(8)内部に流入された溶湯(10)が固化し、キャビティ(8)から金型外部へ向う溶湯(10)が流出する前にガス抜き通気路(3)内で急冷凝固され、前記チルベント(B)によってキャビティ(8)内部の空気やガスが抜かれて巣などがない環状の鋳造品が得られるのである。   Further, as shown in FIG. 6, the chill vent is attached to the outside of the cavity (8), and the outlet side of the gas vent passage (3) is communicated with the outside of the mold. For this reason, when casting, while the melt (10) is filled in the cavity (8), air and gas inside the cavity (8) are discharged outside the mold through the conventional chill vent (B). The molten metal (10) flowing into the cavity (8) solidifies, and is rapidly cooled and solidified in the gas vent passage (3) before the molten metal (10) flowing out of the cavity (8) to the outside of the mold flows out. By the chill vent (B), air or gas inside the cavity (8) is extracted, and an annular cast product having no nest is obtained.

しかしながら、従来の前記チルベント(B)を取付けると、その端部が金型ベースから突出され、作業時に引掛ける恐れがあると共に見た目が悪いものであった。又、気温や成形条件などによって、金型外部へ溶湯(10)が流出される恐れがあった。この時、ガス抜き通気路(3)の隙間を小さくし、山形状の角度を急峻にすれば、溶湯(10)の排出抵抗が大きくなって流出の防止が可能となる反面、ガス排出効果が低下し、良好な環状の鋳造品が得られなくなってしまう。また溶湯(10)が金型外部へ流出することを防止するために、ガス抜き通気路(3)の長さを長くすれば良いが、チルベント(B)の大型化を余儀なくされ、近年の小型化志向に応えられないものとなってしまう。このため、大型化せずに高効率で内部残留ガスを排出すると共に溶湯(10)の流出を防止するために、種々の工夫されたチルベント(B)が提案されているが、これらは構造が複雑になり、大掛かりな付帯装置を必要とするものが多いのが現状である。   However, when the conventional chill vent (B) is attached, the end portion of the chill vent protrudes from the mold base, and there is a possibility that the end of the chill vent (B) may be caught during work, and the appearance is poor. In addition, the molten metal (10) may flow out of the mold depending on the temperature and molding conditions. At this time, if the clearance of the gas vent passage (3) is reduced and the angle of the mountain shape is made steep, the discharge resistance of the molten metal (10) increases and the outflow can be prevented. It will fall and it will become impossible to obtain a good annular casting. Further, in order to prevent the molten metal (10) from flowing out of the mold, the length of the gas vent passage (3) may be increased. However, the chill vent (B) has to be enlarged, and the recent small size has been reduced. It will not be able to respond to the chemical orientation. For this reason, various devised chill vents (B) have been proposed in order to discharge the internal residual gas with high efficiency without increasing the size and to prevent the molten metal (10) from flowing out. The current situation is that many of them are complicated and require a large-scale accessory device.

尚、金型外部へ溶湯が流出するのを防止するために提案されたものとして、例えば、特開平10−249508号がある。これはチルベント内に侵入した未凝固溶湯の冷却能を高めて、従来と同様の寸法・形状で、且つ構造の複雑化や大型化を防止する目的のものであり、その構造としては、ガス抜き通気路の外周に冷却パイプを設け、チルブロックの素材や組成,硬さ,熱伝導率を限定したものである。従って、本発明の如きガス抜き通気路の形状を工夫するものではなく、そのような発想もない。更に鋳ばりが確実に所定の型に付着させるために提案されたものとして、実開平5−88753号があり、このガス抜き通気路の形状が、メス型ブロックとオス型ブロックの山の角度を違えて設けたものである。従って、本発明の如きガス抜き通気路の形状を工夫して全長を短くし、且つそれをキャビティの内側に取付ける内蔵型にするものではなく、そのような発想もない。   In addition, there exists Unexamined-Japanese-Patent No. 10-249508 as what was proposed in order to prevent a molten metal flowing out of a metal mold | die. The purpose of this is to improve the cooling ability of the unsolidified molten metal that has entered the chill vent, and to prevent the complication and enlargement of the structure with the same size and shape as before. A cooling pipe is provided on the outer periphery of the air passage to limit the material, composition, hardness, and thermal conductivity of the chill block. Therefore, the shape of the venting vent passage as in the present invention is not devised, and there is no such idea. Furthermore, Japanese Utility Model Laid-Open No. 5-88753 has been proposed to ensure that the flash is attached to a predetermined mold, and the shape of this venting air passage determines the angle between the female block and the male block. It was set up differently. Therefore, the shape of the gas vent passage as in the present invention is devised to shorten the overall length, and it is not a built-in type that is attached to the inside of the cavity, and there is no such idea.

一方、鋳造品が環状のような内側に空間を有するものであっても(図5参照)、チルベントの取付け位置は、殆どがキャビティの外側に取付けられており、キャビティの内側にチルベントを取付ける発想がないと共に、キャビティの内側に取付け出来るだけの小型化されたチルベントもないのが現状である。
特開平10−249508号公報 実開平5−88753号公報
On the other hand, even if the casting has a ring-like inner space (see FIG. 5), most of the chill vents are attached to the outside of the cavity, and the idea of attaching the chill vent to the inside of the cavity. In addition, there is no chill vent that is small enough to be installed inside the cavity.
Japanese Patent Laid-Open No. 10-249508 Japanese Utility Model Publication No. 5-88753

本発明はチルブロックの長さを短くさせてコンパクトにし、キャビティの内側に取付け出来る内蔵型チルベントを提供することを目的とする。   It is an object of the present invention to provide a built-in chill vent that can be made compact by reducing the length of the chill block and can be attached to the inside of a cavity.

他の目的は、内蔵型チルベントをキャビティの内側に少なくとも取付け、キャビティの内部の空気やガスを少なくとも内側から排出させて良好な環状の鋳造品が得られるダイキャストのガス排出方法を提供するにある。   Another object of the present invention is to provide a die-casting gas exhausting method in which a built-in chill vent is attached at least inside a cavity and air or gas inside the cavity is exhausted at least from the inside to obtain a good annular cast product. .

本発明は上記欠点を解消するために成されたものであり、つまり、小型化されたメス型チルブロックとオス型チルブロックの対向面に連続する山形状のガス抜き通気路を設け、各山形状の中間に折曲部を設けた構造の内蔵型チルベントと成す。また前記折曲部の下部を円弧状に形成すると良く、前記各山形状の中間に折曲部を2段階に設け、前記一対のチルブロックにスポット冷却手段を具備させると良い。   The present invention has been made to eliminate the above-described drawbacks, that is, a continuous mountain-shaped gas venting passage is provided on the opposing surfaces of the downsized female chill block and the male chill block, and This is a built-in chill vent having a structure in which a bent portion is provided in the middle of the shape. The lower portion of the bent portion may be formed in an arc shape, the bent portion may be provided in two stages in the middle of each mountain shape, and the pair of chill blocks may be provided with spot cooling means.

又、他の本発明として、キャビティの内側に内蔵型チルベントを取付け、溶湯がキャビティに充填される際に、その内部の空気やガスが、キャビティの内側から少なくとも排出されるダイキャストのガス排出方法と成す。またキャビティの内側と外側に内蔵型チルベントを取付け、溶湯が充填される際に、その内部の空気やガスが、キャビティの内側と外側の両側から排出されるダイキャストのガス排出方法と成しても良い。尚、本発明で言う「ガス排出」には、注湯時に発生するガスだけを排出するのではなく、キャビティの内部に残存する空気などの排出も含むものとする。又、本発明で言う「キャビティ」とは、製品部分の空間を指すものとする。   Further, as another aspect of the present invention, a die-casting gas exhausting method in which a built-in chill vent is attached to the inside of a cavity, and when the molten metal is filled into the cavity, air or gas inside the cavity is discharged at least from the inside of the cavity And In addition, a built-in chill vent is installed on the inside and outside of the cavity, and when the molten metal is filled, the air and gas inside the cavity are discharged from both the inside and outside of the cavity. Also good. It should be noted that the “gas discharge” in the present invention includes not only the discharge of gas generated during pouring but also discharge of air remaining inside the cavity. Further, the “cavity” in the present invention refers to the space of the product part.

請求項1のように小型化されたメス型チルブロック(1)とオス型チルブロック(2)の対向面に連続する山形状のガス抜き通気路(3)を設け、山形状の中間に折曲部(3a)を設けた構造にすることにより、全体がコンパクト化されて、キャビティ(8)の内側に取付け出来るものとなるため、キャビティ(8)の内部の空気やガスを、その内側から少なくとも排出させて良好な環状の鋳造品を得ることが可能なものとなる。また内蔵型チルベント(A)をキャビティ(8)の外側に取付けても、従来の如き金型ベースから突出することがなくなり、金型全体の見栄えが良いものとなる。更に本発明品をキャビティ(8)の外側に取付けても、従来品と同等のガス排出効果が確保されるものとなる。しかも従来品と比べて小型化されているため、製造コストが低減されると共に管理する際にも嵩張らず収納できるため、整理し易いものとなるのである。   A mountain-shaped gas vent passage (3) is provided on the opposing surfaces of the female chill block (1) and the male chill block (2), which are miniaturized as in claim 1, and folded in the middle of the mountain shape. By adopting a structure with a curved portion (3a), the whole is made compact and can be mounted inside the cavity (8), so that air and gas inside the cavity (8) can be drawn from the inside. It is possible to obtain a good annular cast product by discharging at least. Further, even when the built-in chill vent (A) is attached to the outside of the cavity (8), it does not protrude from the mold base as in the prior art, and the appearance of the entire mold is improved. Furthermore, even if the product of the present invention is attached to the outside of the cavity (8), the same gas discharge effect as that of the conventional product is ensured. Moreover, since it is downsized as compared with the conventional product, the manufacturing cost is reduced and it can be stored without being bulky when managed, so that it is easy to organize.

請求項2のように折曲部(3a)の下部を円弧状に形成することにより、溶湯(10)の流れが良好になってガス抜き効果を向上させると共に溶湯(10)の固化後、ガス抜き通気路(3)で固化した金属が離型し易いものとなる。   By forming the lower part of the bent part (3a) in an arc shape as in claim 2, the flow of the molten metal (10) is improved and the degassing effect is improved, and after the molten metal (10) is solidified, the gas The metal solidified in the ventilating passage (3) becomes easy to release.

請求項3に示すように山形状の中間に折曲部(3a)を2段階に設けることにより、溶湯(10)の流れに抵抗をより多く生じるため、従来のガス抜き通気路(3)よりも溶湯(10)が金型内部から一層流出しにくくなり、溶湯(10)の流出防止が確実なものとなる。またチルブロック(1),(2)の全体がよりコンパクト化されたものとなり、より小さい環状の鋳造品のガス排出用として使用出来るものとなる。   By providing the bent portion (3a) in the middle of the mountain shape in two stages as shown in claim 3, more resistance is generated in the flow of the molten metal (10). However, the molten metal (10) is more difficult to flow out of the mold, and the molten metal (10) is surely prevented from flowing out. Further, the entire chill blocks (1) and (2) are made more compact, and can be used for gas discharge of smaller annular castings.

請求項4に示すようにチルブロック(1),(2)にスポット冷却手段(4)を具備させることにより、溶湯(10)がガス抜き通気路(3)の狭い隙間を流れて行く時に、強制的に冷却して金型外部へ流出する前に確実に凝固させることが可能となるため、チルブロック(1),(2)の全体をよりコンパクト化でき、より多種類の環状な鋳造品用として使用可能なものとなる。   When the chill blocks (1) and (2) are provided with spot cooling means (4) as shown in claim 4, when the molten metal (10) flows through the narrow gap of the gas vent passage (3), Because it is possible to forcibly cool and solidify before flowing out of the mold, the entire chill blocks (1) and (2) can be made more compact, and more types of annular castings. It will be usable for use.

請求項5のようにキャビティ(8)の内側に内蔵型チルベント(A)を取付け、溶湯(10)がキャビティ(8)に充填される際に、該キャビティ(8)の内部の空気やガスが、キャビティ(8)の少なくとも内側から排出されることにより、良好な環状の鋳造品を得ることが出来るダイキャストのガス排出方法となる。   When the built-in chill vent (A) is attached to the inside of the cavity (8) as in claim 5 and the molten metal (10) is filled into the cavity (8), the air and gas inside the cavity (8) By being discharged from at least the inside of the cavity (8), it becomes a die-casting gas discharge method capable of obtaining a good annular cast product.

請求項6のようにキャビティ(8)の内側と外側に内蔵型チルベント(A)を取付け、溶湯(10)がキャビティ(8)に充填される際に、該キャビティ(8)の内部の空気やガスが、キャビティ(8)の内側と外側の両側から確実に排出されることにより、巣が生じにくく、より良好な環状の鋳造品を得るものとなる。   When the built-in chill vent (A) is attached to the inside and outside of the cavity (8) as in claim 6 and the molten metal (10) is filled into the cavity (8), the air inside the cavity (8) The gas is surely discharged from both the inside and the outside of the cavity (8), so that a nest is hardly formed and a better annular cast product is obtained.

図1、図2は本発明品の実施形態を示す図であり、この図に基づいて説明する。(A)はメス型チルブロック(1)とオス型チルブロック(2)の対向面に連続する山形状のガス抜き通気路(3)を設け、前記山形状の中間に折曲部(3a)を設けた内蔵型チルベントである。前記メス型チルブロック(1)とオス型チルブロック(2)は、互いに対向する固定側金型(5)と可動側金型(6)とに取付けられ、メス型チルブロック(1)は固定側に、オス型チルブロック(2)は可動側に取付けられている。また前記メス型チルブロック(1)とオス型チルブロック(2)のガス抜き方向の長さは、例えば55mmとするのが良い。尚、この長さは前記のものに限定されるものではない。この長さを決定する計算式としては、一般に知られているポアゾイユの式(気体の流量を表す)を用いる。この求められる排気量はガス抜き通気路(3)の長さに反比例し、ガス抜き通気路(3)の隙間の3乗に比例するものである。前記折曲部(3a)を設けた山形状としては、図3(a)に示すような2段の山形状,図3(b)のように折曲部(3a)の下部を円弧状に形成したなだらかな2段の山形状,図3(c)に示すような3段の山形状などのものがある。又、前記ガス抜き通気路(3)の隙間としては、0.5mm〜0.6mmが好ましいが、0.7mmとしても良い。尚、図3(d)は従来品の山形状を表わす。   FIG. 1 and FIG. 2 are diagrams showing an embodiment of the product of the present invention, which will be described based on this figure. (A) is provided with a mountain-shaped degassing air passage (3) continuous on the opposed surfaces of the female chill block (1) and the male chill block (2), and a bent portion (3a) in the middle of the mountain shape. Is a built-in chill vent. The female chill block (1) and the male chill block (2) are attached to a fixed mold (5) and a movable mold (6) facing each other, and the female chill block (1) is fixed. On the side, the male chill block (2) is mounted on the movable side. The length of the female chill block (1) and the male chill block (2) in the gas venting direction is preferably 55 mm, for example. This length is not limited to the above. As a calculation formula for determining the length, a generally known Poiseuille formula (representing the gas flow rate) is used. The required exhaust amount is inversely proportional to the length of the gas vent passage (3) and proportional to the cube of the clearance of the gas vent passage (3). The mountain shape provided with the bent portion (3a) is a two-step mountain shape as shown in FIG. 3 (a), and the lower portion of the bent portion (3a) is formed in an arc shape as shown in FIG. 3 (b). There are a gentle two-step mountain shape formed, a three-step mountain shape as shown in FIG. Further, the clearance of the gas vent passage (3) is preferably 0.5 mm to 0.6 mm, but may be 0.7 mm. FIG. 3D shows a conventional mountain shape.

又、前記メス型チルブロック(1)とオス型チルブロック(2)には、スポット冷却手段(4)を取付けるための冷却手段取付部(1a),(2a)が設けられており、該冷却手段取付部(1a),(2a)としては、ネジ穴を穿設するのが好ましいが、これに限定されるものではない。また前記メス型チルブロック(1)の端部には、ガス抜き通気路(3)と連通する半円柱状の排出口(1b)が設けられている。前記固定側金型(5)には、前記排出口(1b)と連通する穴と端面に設けた溝とによってガス排出するための排出路(5a)が形成されている(図4参照)。尚、この時、前記排出口(1b)と排出路(5a)は、可動側へ設けても良い。更に前記スポット冷却手段(4)の構造としては、図4の2点鎖線部分のように管状の端部を螺合して取付け、その管の中に細い管を配置し、前記管の側面に冷却水用の給水管と接続させる。その冷却水は図4の矢印のように管の側面から給水され、前記メス型チルブロック(1)或いはオス型チルブロック(2)の内部に入り、その後、内側の細い管から金型外部に排出されるものであるが、この構造に限定されるものではない。   The female chill block (1) and the male chill block (2) are provided with cooling means attaching portions (1a) and (2a) for attaching the spot cooling means (4). The means mounting portions (1a) and (2a) are preferably formed with screw holes, but are not limited thereto. A semi-cylindrical discharge port (1b) communicating with the gas vent passage (3) is provided at the end of the female chill block (1). The fixed mold (5) is formed with a discharge passage (5a) for discharging gas by a hole communicating with the discharge port (1b) and a groove provided in the end face (see FIG. 4). At this time, the discharge port (1b) and the discharge path (5a) may be provided on the movable side. Further, as the structure of the spot cooling means (4), a tubular end portion is screwed and attached as shown by a two-dot chain line portion in FIG. 4, a thin tube is arranged in the tube, and the tube is disposed on the side surface of the tube. Connect to the water supply pipe for cooling water. The cooling water is supplied from the side of the pipe as shown by the arrow in FIG. 4 and enters the female chill block (1) or the male chill block (2), and then from the inner thin pipe to the outside of the mold. Although it is discharged, it is not limited to this structure.

図4を参照して内蔵型チルベント(A)の取付け方法について説明する。先ずメス型チルブロック(1)を、キャビティ(8)の内側と湯口(7)の反対の外側の所定位置にボルトなどで固定側金型(5)に固着させる。そしてオス型チルブロック(2)を、取付けた前記メス型チルブロック(1)に対向させて可動側金型(6)に固着させる。従って、内蔵型チルベント(A)はキャビティ(8)の内側と外側に取付けられるのである。尚、前記内蔵型チルベント(A)はキャビティ(8)の内側だけに取付ける場合もある。この時、図中の2点鎖線のようにスポット冷却手段(4)を前記メス型チルブロック(1)とオス型チルブロック(2)に具備しておくと良い。又、前記内蔵型チルベント(A)は、上記のように湯口(7)の反対側だけに取付けるのではなく、製品の形状によって取付け位置は決められる。   A method for attaching the built-in chill vent (A) will be described with reference to FIG. First, the female chill block (1) is fixed to the fixed mold (5) with bolts or the like at predetermined positions on the inner side of the cavity (8) and on the outer side opposite to the gate (7). Then, the male chill block (2) is fixed to the movable mold (6) so as to face the attached female chill block (1). Therefore, the built-in chill vent (A) is attached inside and outside the cavity (8). The built-in chill vent (A) may be attached only inside the cavity (8). At this time, the spot cooling means (4) may be provided in the female chill block (1) and the male chill block (2) as indicated by a two-dot chain line in the figure. The built-in chill vent (A) is not attached only to the opposite side of the gate (7) as described above, but the attachment position is determined by the shape of the product.

次に他の発明であるガス排出方法を図4に基づいて説明する。先ず始めにプランジャー(9)によって所定量の溶湯(10)を湯口(7)から図中の矢印のようにキャビティ(8)に流し込んで充填させる。この時、キャビティ(8)内部に生じるガスと残存する空気は、キャビティ(8)の内側と外側に取付けた内蔵型チルベント(A)によって確実に金型外部へ排出される。またキャビティ(8)の内部の空気やガスは、ガス抜き通気路(3)を通過すると共に排出路(51)を点線矢印のように通過して金型外部へと排出されるのである。この時、内蔵型チルベント(A)がキャビティ(8)の内側と外側に取付けておくと、ガス排出効果は確実なものとなる。しかもキャビティ(8)から金型外部へ向う溶湯(10)が内蔵型チルベント(A)の外部へ流出する前に、或いはキャビティ(8)の内側から内蔵型チルベント(A)の外部へ向う溶湯(10)が流出する前にガス抜き通気路(3)内で急冷凝固されて、巣のない環状の鋳造品が得られるのである。   Next, another embodiment of the gas discharge method will be described with reference to FIG. First, a predetermined amount of molten metal (10) is poured from the gate (7) into the cavity (8) as shown by the arrow in the figure by the plunger (9) and filled. At this time, the gas generated in the cavity (8) and the remaining air are surely discharged to the outside of the mold by the built-in chill vent (A) attached to the inside and outside of the cavity (8). The air and gas inside the cavity (8) pass through the gas vent passage (3) and pass through the discharge passage (51) as indicated by the dotted arrow, and are discharged to the outside of the mold. At this time, if the built-in chill vent (A) is attached to the inside and the outside of the cavity (8), the gas discharge effect is ensured. Moreover, before the molten metal (10) directed from the cavity (8) to the outside of the mold flows out of the built-in chill vent (A) or from the inside of the cavity (8) toward the outside of the built-in chill vent (A) ( Before 10) flows out, it is rapidly solidified in the venting air passage (3) to obtain an annular cast product without a nest.

このように本発明の内蔵型チルベント(A)を金型に取付けると、金型ベースから内蔵型チルベント(A)の端部が突出する恐れがなくなり、作業時に内蔵型チルベント(A)の端部に引掛かる恐れもなく、見た目もスッキリしたものとなる。又、溶湯(10)がキャビティ(8)内に流れ込む状態を詳細に説明すると、キャビティ(8)が溶湯(10)で充填され、その後、ガス抜き通気路(3)の隙間に溶湯(10)が、図3(a)の矢印のように流れて来ると、先ず始めに左側の折曲部(3a)で溶湯(10)の流れの方向が右に曲がり、そして左に曲がり、更に山頂部で方向転換される。次に右側の折曲部(3a)で溶湯(10)の流れが進行方向左に曲がり、そして進行方向右に曲がり、1山分が完了する。その後、溶湯(10)の流れは谷部で方向転換され、図示しない次の山に流れ込むと共に上記の図3(a)の矢印のようにして2段の山形状を通過して行くのである。従って、前記折曲部(3a)で溶湯(10)の流れが曲がる毎に流れに抵抗が加わるものとなると共にガス抜き通気路(3)の長さが長くなるため、チルブロック(1),(2)の全体の長さを従来品よりも短くしてコンパクト化が可能となるのである。   When the built-in chill vent (A) of the present invention is attached to the mold in this way, the end of the built-in chill vent (A) is not likely to protrude from the mold base, and the end of the built-in chill vent (A) during operation is eliminated. There is no fear of getting caught in, and it looks neat. The state in which the molten metal (10) flows into the cavity (8) will be described in detail. The cavity (8) is filled with the molten metal (10), and then the molten metal (10) is inserted into the gap of the gas vent passage (3). However, when it flows as shown by the arrow in Fig. 3 (a), first the flow direction of the molten metal (10) turns to the right at the left bent part (3a), then turns to the left, and further to the summit. The direction is changed. Next, the flow of the molten metal (10) turns to the left in the traveling direction at the bent portion (3a) on the right side, and turns to the right in the traveling direction to complete one mountain. Thereafter, the flow of the molten metal (10) is changed in direction at the valley and flows into the next mountain (not shown) and passes through the two mountain shapes as shown by the arrow in FIG. Therefore, every time the flow of the molten metal (10) bends in the bent portion (3a), resistance is added to the flow and the length of the gas vent passage (3) is increased, so that the chill block (1), The overall length of (2) can be made shorter by making it shorter than the conventional product.

本発明品の要部構造を示す断面図である。It is sectional drawing which shows the principal part structure of this invention product. 本実施形態にスポット冷却手段が具備されるための取付部を設けた断面図である。It is sectional drawing which provided the attaching part for a spot cooling means to be comprised in this embodiment. ガス抜き通気路の複数の山形状を示す説明図である。It is explanatory drawing which shows the some mountain shape of a degassing ventilation path. 本発明品が取付けられた状態及び他の発明方法を説明する説明図である。It is explanatory drawing explaining the state in which the product of this invention was attached, and another invention method. 環状のキャビティに対して本発明品が取付けられる位置を示す説明図である。It is explanatory drawing which shows the position where this invention goods are attached with respect to a cyclic | annular cavity. 従来品が取付けられた状態及び従来方法を示す説明図である。It is explanatory drawing which shows the state in which the conventional product was attached, and the conventional method.

符号の説明Explanation of symbols

A 内蔵型チルベント
1 メス型チルブロック
2 オス型チルブロック
3 ガス抜き通気路
3a 折曲部
4 スポット冷却手段
8 キャビティ
10 溶湯
A Built-in chill vent 1 Female chill block 2 Male chill block 3 Gas vent
3a Bent part 4 Spot cooling means 8 Cavity
10 Molten metal

Claims (6)

キャビティ(8)の内側に取付けるものであり、メス型チルブロック(1)とオス型チルブロック(2)の対向面に連続する山形状のガス抜き通気路(3)を設け、前記山形状の中間に折曲部(3a)を設けたことを特徴とする内蔵型チルベント。   Mounted on the inside of the cavity (8), provided with a mountain-shaped gas vent passage (3) continuous on the opposing surfaces of the female chill block (1) and the male chill block (2), Built-in chill vent with a bend (3a) in the middle. 前記折曲部(3a)の下部を円弧状に形成した請求項1記載の内蔵型チルベント。   The built-in chill vent according to claim 1, wherein a lower portion of the bent portion (3a) is formed in an arc shape. 前記山形状の中間に折曲部(3a)を2段階に設けた請求項1記載の内蔵型チルベント。   The built-in chill vent according to claim 1, wherein a bent portion (3a) is provided in two stages in the middle of the mountain shape. 前記チルブロック(1),(2)にスポット冷却手段(4)を具備させた請求項1記載の内蔵型チルベント。   The built-in chill vent according to claim 1, wherein the chill blocks (1) and (2) are provided with spot cooling means (4). キャビティ(8)の内側に内蔵型チルベント(A)を取付け、溶湯(10)が前記キャビティ(8)に充填される際に、該キャビティ(8)の内部の空気やガスが、前記キャビティ(8)の少なくとも内側から排出されることを特徴とするダイキャストのガス排出方法。   When the built-in chill vent (A) is attached to the inside of the cavity (8) and the molten metal (10) is filled into the cavity (8), the air or gas inside the cavity (8) is transferred to the cavity (8). ), Which is discharged from at least the inside. キャビティ(8)の内側と外側に内蔵型チルベント(A)を取付け、溶湯(10)が前記キャビティ(8)に充填される際に、該キャビティ(8)の内部の空気やガスが、前記キャビティ(8)の内側と外側の両側から排出される請求項5記載のダイキャストのガス排出方法。
A built-in chill vent (A) is attached to the inside and outside of the cavity (8), and when the molten metal (10) is filled in the cavity (8), air or gas inside the cavity (8) 6. The die-casting gas discharging method according to claim 5, wherein the gas is discharged from both the inside and outside of (8).
JP2006266498A 2006-09-29 2006-09-29 Built-in chill vent and method for discharging gas from die cast Pending JP2008080391A (en)

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JP2011062746A (en) * 2009-09-21 2011-03-31 Asahi:Kk Forming die and cleaning pin
DE102010020402B3 (en) * 2010-05-12 2011-09-29 InterGuss Gießereiprodukte GmbH Device for aerating a casting mold in the form of a chill-vent, comprises two mold halves, which are opposite to each other and have elevations and/or depressions running parallel to each other in their compatibly pointing surfaces
CN102615274A (en) * 2012-04-14 2012-08-01 北京新方尊铸造科技有限责任公司 Method for controlling solidification and cooling of heavy castings
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JP2014091163A (en) * 2012-11-07 2014-05-19 Suguro Tekko:Kk Chill vent
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KR101824500B1 (en) 2016-07-14 2018-02-01 이상길 Chill Vent for Die Casting
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Publication number Priority date Publication date Assignee Title
JP2011062746A (en) * 2009-09-21 2011-03-31 Asahi:Kk Forming die and cleaning pin
DE102010020402B3 (en) * 2010-05-12 2011-09-29 InterGuss Gießereiprodukte GmbH Device for aerating a casting mold in the form of a chill-vent, comprises two mold halves, which are opposite to each other and have elevations and/or depressions running parallel to each other in their compatibly pointing surfaces
DE102012004057B3 (en) * 2012-03-02 2013-03-21 Ksm Castings Group Gmbh Device for venting a casting mold
CN102615274A (en) * 2012-04-14 2012-08-01 北京新方尊铸造科技有限责任公司 Method for controlling solidification and cooling of heavy castings
JP2014065151A (en) * 2012-09-24 2014-04-17 Sumitomo Rubber Ind Ltd Bead ring
JP2014091163A (en) * 2012-11-07 2014-05-19 Suguro Tekko:Kk Chill vent
JP2015110250A (en) * 2015-02-02 2015-06-18 株式会社 旭 Cleaning pin
KR101824500B1 (en) 2016-07-14 2018-02-01 이상길 Chill Vent for Die Casting
JP2020059037A (en) * 2018-10-09 2020-04-16 株式会社エフ・シー・シー Molding device and method of molding by the molding device
WO2020075681A1 (en) * 2018-10-09 2020-04-16 株式会社エフ・シー・シー Molding apparatus and method for molding using same
CN112805100A (en) * 2018-10-09 2021-05-14 株式会社F.C.C. Molding apparatus and molding method using the same
JP7132814B2 (en) 2018-10-09 2022-09-07 株式会社エフ・シー・シー Molding apparatus and molding method using the molding apparatus
US11498120B2 (en) 2018-10-09 2022-11-15 Kabushiki Kaisha F.C.C. Molding apparatus and method for molding using same
US11065679B2 (en) * 2019-11-13 2021-07-20 Hyundai Motor Company Vacuum system for die casting mold
EP4015102A1 (en) * 2020-12-16 2022-06-22 voestalpine Edelstahl Deutschland GmbH Venting device for a casting mould for casting metallic components
CN113996754A (en) * 2021-10-22 2022-02-01 共享装备股份有限公司 Casting sand mold and application thereof
CN113996754B (en) * 2021-10-22 2023-07-28 共享装备股份有限公司 Sand mould for casting and application thereof

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