JPH06114534A - Inoculating method in differential pressure casting - Google Patents

Inoculating method in differential pressure casting

Info

Publication number
JPH06114534A
JPH06114534A JP29210892A JP29210892A JPH06114534A JP H06114534 A JPH06114534 A JP H06114534A JP 29210892 A JP29210892 A JP 29210892A JP 29210892 A JP29210892 A JP 29210892A JP H06114534 A JPH06114534 A JP H06114534A
Authority
JP
Japan
Prior art keywords
inoculant
molten metal
casting
stalk
stoke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP29210892A
Other languages
Japanese (ja)
Inventor
Masao Nakayama
雅夫 中山
Hiromi Munakata
弘美 宗像
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP29210892A priority Critical patent/JPH06114534A/en
Publication of JPH06114534A publication Critical patent/JPH06114534A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide an inoculating method, in which fading of the inoculant is prevented and the segregation is not developed in a casting product. CONSTITUTION:In a suction casting or a low pressure casting for producing the casting product by setting the flasks 2, 3 above a molten metal vessel and pouring the molten metal 8 in the molten metal vessel into a flask cavity 4 through the stoke 9 with the differential pressure, the necessary quantity of the inoculant 6 is arranged near the lower end part 9a of the stoke in a differential casting device at each one time of the casting. As the arranging method, e.g. a method for hanging the inoculant 6 from the flask 3 through the stoke 9 with an iron wire 5, a method for beforehand sticking the inoculant at the lower end part of the stoke with binder and a method for holding the inoculant by arranging a holding shape part at the lower part of the stoke, etc., is nominated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、溶湯に少量の異種金属
を溶解するいわゆる接種方法に関し、より具体的には差
圧鋳造における接種方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called inoculation method for dissolving a small amount of different metals in a molten metal, and more specifically to an inoculation method in differential pressure casting.

【0002】[0002]

【従来の技術】溶湯容器の上方に鋳型を設置し、差圧
(圧力差)により溶湯容器内の溶湯をストーク(湯口
管)を介して鋳型キャビティ内に汲み上げる(注湯す
る)ことにより鋳造品を製造する差圧鋳造法には、例え
ば鋳型キャビティ側を減圧する吸引鋳造法や、容器内の
溶湯表面を加圧する低圧鋳造法がある。このような差圧
鋳造法は、空気や溶湯表面に浮遊するノロ、フラック
ス等の不純物の巻き込みが無くなる;圧力調整で静か
に注湯できるため砂中子が使用できる;凝固収縮時の
溶湯補給もスムースに行われる;指向性凝固が行われ
るので健全な、気密性に優れた鋳造品ができる;等の利
点を有している。
2. Description of the Related Art A casting is prepared by installing a mold above a molten metal container and pumping (pouring) the molten metal in the molten metal container into a mold cavity through a stalk (gate pipe) by a pressure difference (pressure difference). Examples of the differential pressure casting method for manufacturing a. Include a suction casting method in which the mold cavity side is depressurized, and a low pressure casting method in which the surface of the molten metal in the container is pressurized. Such a differential pressure casting method eliminates the inclusion of impurities such as slag and flux floating on the surface of the molten metal; it is possible to use a sand core because the molten metal can be poured gently by adjusting the pressure; It has a merit that it is performed smoothly; since a directional solidification is performed, a sound casting with excellent airtightness can be obtained.

【0003】他方、鋳造品の機械的性質を改善するに
は、鋳鉄基地組織に変化を与える合金元素例えばCe,
Al,Mg,Ti等の異種金属を添加すればよいことも
知られている。所望の基地組織を作る異種金属が添加さ
れた鋳造品を上記差圧鋳造法で製造すれば一段と機械的
強度の高い鋳造品が得られることは勿論である。一般的
鋳造方法であれ差圧鋳造方法であれ、こうした異種金属
が添加された鋳造品を製造するために従来から行われて
きた接種方法は、鋳型に注湯される溶湯に予め添加する
異種金属の塊や粉末(接種剤)を完全に溶解させておく
という方法である。
On the other hand, in order to improve the mechanical properties of cast products, alloying elements such as Ce, which change the cast iron matrix structure,
It is also known that dissimilar metals such as Al, Mg and Ti may be added. Needless to say, if a cast product to which a dissimilar metal that forms a desired matrix structure is added is manufactured by the above-mentioned differential pressure casting method, a cast product with much higher mechanical strength can be obtained. Whether it is a general casting method or a differential pressure casting method, the inoculation method that has been conventionally performed for producing a cast product to which such dissimilar metals are added is a dissimilar metal added in advance to the molten metal poured into the mold. It is a method of completely dissolving the lumps and powder (inoculant) of.

【0004】しかし、Ce,Al,Mg,Ti等の接種
剤は、フェーディング、すなわち接種後から鋳型に注湯
するまでに時間がかかると接種効果が低下ないし消失す
る現象を起こすため、初回から以後、継続的に同じ接種
剤濃度の溶湯が注湯されるように頻繁に接種剤を追加投
入する必要がある。溶湯容器が大型になるほど多量の接
種剤を必要とする。これとは別のフェーディング対策と
して、特開昭57−175070号、実開昭61−11
7341号公報に示されているように、鋳型キャビティ
内に接種剤を予め入れておいて溶湯を注入する方法も試
みられている。
However, inoculants such as Ce, Al, Mg, and Ti cause fading, that is, the effect of inoculation decreases or disappears if it takes time from pouring to pouring into the mold. After that, it is necessary to frequently add the inoculant so that the molten metal having the same inoculant concentration is continuously poured. The larger the molten metal container, the larger the amount of inoculum required. As another countermeasure against fading, JP-A-57-175070 and JP-A-61-11
As disclosed in Japanese Patent No. 7341, a method of putting an inoculant in a mold cavity in advance and injecting a molten metal has been attempted.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、鋳型キ
ャビティ内に接種剤を予め入れておいてから溶湯を注入
する方法では、接種剤が完全に溶けないうちに溶湯が凝
固して、鋳造品に成分組成の不均一な部分(偏析)が生
じ易いという問題がある。特に、鋳造品が厚さの薄いも
のであるほど注湯された溶湯が早く凝固するため、鋳造
品に偏析が発生し易い。
However, in the method in which the inoculant is placed in the mold cavity in advance and then the molten metal is injected, the molten metal is solidified before the inoculant is completely melted, and the components are cast into the cast product. There is a problem that a nonuniform composition portion (segregation) is likely to occur. In particular, the thinner the cast product, the more quickly the molten metal poured will solidify, and segregation is likely to occur in the cast product.

【0006】本発明は上記問題を解決する目的で為され
たものであり、その解決しようとする課題は、溶湯に接
種剤を追加投入する必要がなく、鋳型キャビティ内に注
湯された溶湯が凝固する前に接種剤が完全に溶解し、所
望通り均一な成分組成の鋳造品を得ることのできる差圧
鋳造における接種方法を提供することである。
The present invention has been made for the purpose of solving the above problems, and the problem to be solved is that it is not necessary to add an inoculant to the molten metal, and the molten metal poured into the mold cavity is It is an object of the present invention to provide an inoculation method in differential pressure casting, in which the inoculant is completely dissolved before solidifying and a cast product having a desired uniform composition can be obtained.

【0007】[0007]

【課題を解決するための手段】上記課題を解決するため
の本発明の差圧鋳造装置における接種方法は、溶湯容器
の上方に鋳型を設置し、ストークを介し差圧で溶湯容器
内の溶湯を鋳型キャビティ内に注湯する差圧鋳造装置に
より鋳造品を製造する際、1回の鋳造毎に、ストーク下
端部の近傍に所要量の接種剤を配置することを特徴とす
る。
The inoculation method in the differential pressure casting apparatus of the present invention for solving the above problems is to install a mold above a molten metal container and to apply the molten metal in the molten metal container with a differential pressure through a stalk. When a cast product is manufactured by a differential pressure casting device that pours metal into the mold cavity, a required amount of inoculant is arranged near the lower end of the stalk for each casting.

【0008】ここで“ストーク下端部”とは、ストーク
の溶湯に浸漬される部分であり、ストークにより汲み上
げられる溶湯が存在している領域は、上記“ストーク下
端部の近傍”と理解されてよい。接種剤をストーク下端
部の近傍に配置するには、例えば、毎回のストーク及び
鋳型の設置時に接種剤を鋳型からストーク内を通して鉄
線で吊るすか、溶湯に浸漬したストーク内に接種剤を落
下させるか(接種剤の比重が溶湯よりも小さい場合)、
予めストーク下端部に接種剤を適当なバインダーで付着
させておくか、ストーク下端部に保持形状部を設けてそ
こに接種剤を保持させておけばよい。或は、接種剤を溶
湯内の所定位置に配置するための適当な搬送装置を溶湯
容器(溶解炉、保温炉、取鍋、るつぼ等)に取付けても
よい。
Here, the "lower end of the stalk" is a portion immersed in the molten stalk, and the region where the molten metal pumped up by the stalk is present may be understood as "near the lower end of the stalk". . To place the inoculant near the lower end of the stalk, for example, at each stalk and installation of the mold, hang the inoculant from the mold through the stalk with an iron wire, or drop the inoculant into the stalk immersed in the molten metal. (When the specific gravity of the inoculant is smaller than that of the molten metal),
The inoculant may be attached to the lower end of the stalk with a suitable binder in advance, or a retaining shape portion may be provided at the lower end of the stalk to retain the inoculant therein. Alternatively, a suitable conveying device for arranging the inoculant at a predetermined position in the melt may be attached to the melt container (melting furnace, heat retaining furnace, ladle, crucible, etc.).

【0009】接種剤は、フェーディング対策上、一般的
にストーク開口部付近、特にストークの内側に配置され
るのが好ましい。本発明方法においては、接種剤がスト
ーク下端部の近傍の溶湯に充分な程度に溶解した後、非
近傍の溶湯へと拡散する前に注湯を開始するのが好まし
い。注湯開始は、差圧を生じさせる真空ポンプや加圧装
置の作動による。注湯開始時間、すなわちストーク下端
部の近傍に配置される接種剤が溶湯に接触してから注湯
を開始する迄の時間は、鋳造品の成分組成をコントロー
ルすることになる。注湯開始時間は接種剤の種類、形
状、量を考慮して、又は予備試験により適切に定めるの
がよい。成分組成をより正確にコントロールするため
に、注湯速度(キャビティ内に導入される溶湯量÷時
間)を、接種剤の溶解時間、キャビティ内の溶湯の凝固
時間等からみて許容される範囲で変更してもよい。
In order to prevent fading, the inoculant is preferably placed in the vicinity of the stalk opening, particularly inside the stalk. In the method of the present invention, it is preferable to start pouring after the inoculant is sufficiently dissolved in the molten metal in the vicinity of the lower end of the stalk and before it is diffused in the molten metal in the vicinity. The start of pouring is due to the operation of a vacuum pump or pressurizing device that creates a differential pressure. The pouring start time, that is, the time from the contact of the inoculant placed near the lower end of the stalk with the molten metal to the start of pouring, controls the component composition of the cast product. The start time of pouring should be appropriately determined in consideration of the type, shape, and amount of the inoculant, or by a preliminary test. In order to control the composition of the components more accurately, change the pouring speed (the amount of molten metal introduced into the cavity ÷ time) within an allowable range in view of the dissolution time of the inoculant and the solidification time of the molten metal in the cavity. You may.

【0010】[0010]

【作用】ストーク下端部に配置された接種剤は溶湯によ
り溶け、その接種剤が溶けた溶湯は鋳型キャビティ内に
注湯される。接種剤をストーク下端部に配置することに
よって、接種剤が完全に溶けた状態の溶湯を鋳型キャビ
ティ内に注湯することが可能となり、そのように注湯さ
れると、鋳造品の成分組成が不均一になることはない。
また、接種剤をストーク下端部に配置することは、鋳型
キャビティ内に注湯される溶湯にのみ接種剤を溶解する
ことを可能にし、このことは接種剤が容器内に残留して
浪費されることを阻止する。特に接種剤をストークの内
側でのみ溶解するようにさせると、接種剤のフェーディ
ングは全く起こらず、必要な量の接種剤で鋳造可能とな
る。
The inoculant located at the lower end of the stalk is melted by the molten metal, and the molten inoculant is poured into the mold cavity. By placing the inoculant at the lower end of the stalk, it is possible to pour the molten metal with the inoculant completely melted into the mold cavity. It will not be uneven.
Also, placing the inoculant at the lower end of the stalk allows the inoculant to be dissolved only in the melt that is poured into the mold cavity, which wastes the inoculant remaining in the container. Prevent things. In particular, when the inoculant is dissolved only inside the stalk, fading of the inoculant does not occur at all, and casting can be performed with a required amount of the inoculant.

【0011】[0011]

【実施例】【Example】

実施例1 図1は、本実施例に使用される吸引鋳造装置を示してい
る。該装置において、上型2及び下型3からなる鋳型
は、チャンバ1と定盤7とで囲まれる空間(チャンバ内
空間14)に配置されている。該空間14は真空ポンプ
10で減圧できるようになっており、その操作はバルブ
11の開閉で行われる。チャンバ1とチャンバ定盤7の
間の気密性は、そこに介装される図示しないゴムシール
により確保される。鋳型(砂型)2,3は通気性であ
り、チャンバ内空間14を減圧するとキャビティ4も減
圧される。ストーク9は、定盤7に設けられた貫通穴に
取り付けられるようになっており、ストーク上端部9b
が鋳型の湯口16に接合し、ストーク下端部9aが溶湯
容器(高周波炉)12内の溶湯8に浸漬するようにされ
ている。チャンバ1は、その上に設けられている図示し
ないシリンダロッドに連結され、定盤7とは分離・合体
可能となっており、これにより1ショット毎に鋳型2,
3もストーク9も交換できるようになっている。以上の
ようにしてなる該装置の基本構成は従来のそれと同様で
ある。
Example 1 FIG. 1 shows a suction casting apparatus used in this example. In the apparatus, a mold including an upper mold 2 and a lower mold 3 is arranged in a space (a chamber internal space 14) surrounded by the chamber 1 and the surface plate 7. The space 14 can be decompressed by the vacuum pump 10, and its operation is performed by opening and closing the valve 11. The airtightness between the chamber 1 and the chamber surface plate 7 is ensured by a rubber seal (not shown) interposed therein. The molds (sand molds) 2 and 3 are breathable, and when the chamber internal space 14 is depressurized, the cavity 4 is also depressurized. The stalk 9 is attached to a through hole provided on the surface plate 7, and the stalk upper end portion 9b
Is joined to the sprue 16 of the mold, and the lower end of the stalk 9a is immersed in the molten metal 8 in the molten metal container (high frequency furnace) 12. The chamber 1 is connected to a cylinder rod (not shown) provided on the chamber 1, and can be separated and united with the surface plate 7, whereby the mold 2,
Both 3 and Stoke 9 can be exchanged. The basic configuration of the apparatus configured as described above is the same as that of the conventional one.

【0012】本実施例では上記吸引鋳造装置を用い、添
加成分Ceを0.05〜0.10重量%含む鋳造品を製
造する。そのための鋳鋼溶湯8へのCeの接種は次のよ
うに行う。先ず、図2(a) に示すように軟鋼の針金5の
先端を鋳型(下型)3に差し込んで固定し、針金5の後
端は図2(b) に示すように網状にすると共にその中に接
種剤6を包み込み、こうして針金に固定された接種剤9
を図2(a) に示すようにストーク9内に通してストーク
下端部9aの近傍に吊るすようにする。図3はその時の
下型を上方からみた平面図である。この実施例では針金
の先端はランナー15に曲げて差し込まれているが、湯
口16の奥部、堰17又は製品部18に差し込んでもよ
い。なお、接種剤6は直径15mm、長さ20mmの円
柱状の一般的に市販されているCeであり、使用量(投
入量)は鋳込み溶湯重量の0.1重量%である。
In this embodiment, the suction casting apparatus is used to manufacture a cast product containing 0.05 to 0.10% by weight of the additive component Ce. The inoculation of Ce into the molten cast steel 8 for this purpose is performed as follows. First, as shown in FIG. 2 (a), the tip of the mild steel wire 5 is inserted into the mold (lower mold) 3 and fixed, and the rear end of the wire 5 is meshed as shown in FIG. 2 (b). Inoculant 9 wrapped in inoculant 6 and thus fixed to the wire
2 is passed through the stalk 9 and hung near the lower end of the stalk 9a as shown in FIG. 2 (a). FIG. 3 is a plan view of the lower mold at that time as seen from above. Although the tip of the wire is bent and inserted into the runner 15 in this embodiment, it may be inserted into the inner part of the sprue 16, the dam 17 or the product portion 18. The inoculant 6 is a generally commercially available columnar Ce having a diameter of 15 mm and a length of 20 mm, and the usage amount (input amount) is 0.1% by weight of the weight of the cast molten metal.

【0013】次に図1に示されているようにストーク下
端部9aを溶湯8内に入れ、接種剤6が溶湯8に浸漬し
てから2分後に真空ポンプ10を作動させ吸引を開始す
る。これにより、接種剤6が溶解した付近の溶湯8aが
ストーク9を通してキャビティ4内に注入される。以後
の鋳造〜脱型操作は従来と同様である。得られた鋳造品
にはCeの偏析は見られず、鋳造品全体にわたり約0.
070〜0.075重量%の含有率で均一に分布してい
ることが確かめられる。次の鋳造を行うに当たっては、
図6から判るように、従来のようにフェーディングによ
り消失した分に相当する量の接種剤6を追加投入する必
要がない。
Next, as shown in FIG. 1, the lower end of the stalk 9a is put into the molten metal 8, and two minutes after the inoculant 6 is immersed in the molten metal 8, the vacuum pump 10 is operated to start suction. As a result, the molten metal 8 a in the vicinity where the inoculant 6 is dissolved is injected into the cavity 4 through the stalk 9. The subsequent casting to demolding operation is the same as the conventional one. No segregation of Ce was observed in the obtained cast product, and the total cast product was about 0.
It is confirmed that the content is evenly distributed at a content of 070 to 0.075% by weight. When performing the next casting,
As can be seen from FIG. 6, it is not necessary to additionally inject the inoculant 6 in an amount corresponding to the amount lost by fading as in the conventional case.

【0014】試験例 接種剤6が溶湯8に完全溶解するにはある程度の時間を
要し、また、接種後鋳型に注湯する迄の時間が長くなる
ほど接種剤6がストーク9より遠方に拡散する量は大き
くなると考えられる。そこで、接種剤6を吊るしたスト
ーク9を溶湯8に浸漬してから吸引を開始する迄の時間
(注湯開始時間)を変化させる以外は実施例1と同様に
して鋳造品を製造し、注湯開始時間と得られた鋳造品中
のCe含量(%)の関係を調べた。その結果を表1に示
す。
Test Example It takes a certain amount of time for the inoculant 6 to be completely dissolved in the molten metal 8, and the inoculant 6 diffuses farther than the stalk 9 as the time until pouring into the mold after inoculation becomes longer. It is expected that the amount will increase. Therefore, a cast product is manufactured and poured in the same manner as in Example 1 except that the time from the immersion of the stalk 9 with the inoculant 6 suspended in the molten metal 8 to the start of suction (pouring start time) is changed. The relationship between the molten metal start time and the Ce content (%) in the obtained cast product was investigated. The results are shown in Table 1.

【表1】 この結果から、鋳造品における接種剤成分量のコントロ
ールは、ストークが溶湯につかってから吸引を開始する
までの時間と接種剤の量により行なえることが確認され
た。
[Table 1] From this result, it was confirmed that the amount of the inoculant component in the cast product can be controlled by the time from the time the stalk is immersed in the molten metal until the suction is started and the amount of the inoculant.

【0015】実施例2 この実施例の接種方法は、図5に示すようにストーク下
端部9aに接種剤の塗膜13を形成させておく方法であ
る。この塗膜13は、粒径2mm以下に砕いた接種剤
を、バインダーであるジルコメルトと混ぜ合わせて泥状
にし、それをストーク下端部9aに塗布することにより
設ける。ストーク下端部9aに塗布する接種剤(Ce)
量を、鋳込み溶湯量の0.10重量%に相当する量と
し、注湯開始時間を7.0秒にし、その他の条件は実施
例1と同様にして鋳造を行うと、Ce含量0.05重量
%の鋳造品が得られる。
Example 2 The inoculation method of this example is a method of forming a coating film 13 of the inoculant on the lower end portion of the stalk 9a as shown in FIG. The coating film 13 is provided by mixing an inoculant crushed to have a particle diameter of 2 mm or less with zircomelt as a binder to form a mud, and applying it to the lower end portion 9a of the stalk. Inoculant (Ce) applied to the lower end 9a of the stalk
When the amount was set to an amount corresponding to 0.10% by weight of the amount of molten metal, the pouring start time was 7.0 seconds, and other conditions were the same as in Example 1, when casting was performed, the Ce content was 0.05. A weight percent casting is obtained.

【0016】実施例3 本実施例では通常のストーク9に代えて、図6に示すよ
うに先端(溶湯浸漬側端)に逆フランジ部20が設けら
れたストーク19を用いる。このストーク19は実施例
1で使用されるストーク9の先端に、逆フランジ部20
となる鋼板を溶接して製作されたものである。接種剤6
はこの逆フランジ部20に単に載置するかバインダーで
付着させ、ストーク19が溶湯8に浸漬された時に接種
剤6が溶湯8に溶解するようにする。接種方法をこのよ
うにする以外は実施例1と同様に鋳造を行い、実施例1
で得られたのと同一組成の鋳造品を得た。また注湯開始
時間を変えると、上記試験例の場合と同様の結果が得ら
れた。
Embodiment 3 In this embodiment, instead of the normal stalk 9, a stalk 19 having a reverse flange portion 20 at the tip (end on the molten metal immersion side) as shown in FIG. 6 is used. The stalk 19 has a reverse flange portion 20 at the tip of the stalk 9 used in the first embodiment.
It is manufactured by welding a steel plate to be used. Inoculant 6
Is simply placed on the reverse flange portion 20 or attached with a binder so that the inoculant 6 is dissolved in the molten metal 8 when the stalk 19 is immersed in the molten metal 8. Casting was performed in the same manner as in Example 1 except that the inoculation method was set as described above, and Example 1 was used.
A cast product having the same composition as that obtained in 1. was obtained. Further, when the pouring start time was changed, the same result as in the above-mentioned test example was obtained.

【0017】[0017]

【発明の効果】本発明の接種方法によれば、1ショット
毎に吸引鋳造装置のストーク下端部の近傍に接種剤を配
置するので、接種剤の利用効率が格段に向上する。即
ち、フェーディング対策のために溶湯に接種剤を補充投
入する必要が無くなり、接種剤の節約によるコスト低減
を図ることができる。また容器内の溶湯量がどんなに大
量であろうとも常に一定必要量の接種剤で足り、巨大溶
解炉を用いても接種剤の消費量は増大しないので、量産
が可能になる。そして鋳型キャビティ内に接種剤を入れ
ておく方法ではないので、鋳造品に接種剤の偏析が起こ
るようなことはなく品質管理が容易となる。
According to the inoculation method of the present invention, the inoculant is disposed near the lower end of the stalk of the suction casting apparatus for each shot, so that the utilization efficiency of the inoculant is remarkably improved. That is, it is not necessary to replenish the molten metal with the inoculant as a measure against fading, and the cost can be reduced by saving the inoculant. Also, no matter how large the amount of molten metal in the container, a constant required amount of inoculant is always sufficient, and even if a huge melting furnace is used, the consumption of inoculant does not increase, so mass production is possible. Since the method is not a method in which the inoculant is placed in the mold cavity, segregation of the inoculant does not occur in the cast product, which facilitates quality control.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例に使用される吸引鋳造装置を
示す断面図である。
FIG. 1 is a sectional view showing a suction casting apparatus used in an embodiment of the present invention.

【図2】同装置における接種剤の配置方法を示す説明図
である。
FIG. 2 is an explanatory view showing a method of arranging an inoculant in the same device.

【図3】その配置状態時の下型を示す平面図である。FIG. 3 is a plan view showing the lower mold in its arranged state.

【図4】他の実施例に使用される吸引鋳造装置を示す断
面図である。
FIG. 4 is a cross-sectional view showing a suction casting device used in another embodiment.

【図5】別の実施例に係る図である。FIG. 5 is a diagram according to another embodiment.

【図6】従来法と本発明の方法とを対比して示す説明図
である。
FIG. 6 is an explanatory diagram showing the conventional method and the method of the present invention in comparison.

【符号の説明】[Explanation of symbols]

2 上型(鋳型) 3 下型(鋳型) 4 キャビティ 5 針金 6 接種剤(Ce) 8 溶湯 9 ストーク 9a ストーク下端部 10 真空ポンプ 13 接種剤の塗膜 19 ストーク 20 逆フランジ部 2 Upper mold (mold) 3 Lower mold (mold) 4 Cavity 5 Wire 6 Inoculant (Ce) 8 Molten metal 9 Stoke 9a Stoke lower end 10 Vacuum pump 13 Inoculant coating 19 Stoke 20 Reverse flange

Claims (1)

【特許請求の範囲】[Claims] 溶湯容器の上方に鋳型を設置し、ストークを介し差圧で
溶湯容器内の溶湯を鋳型キャビティ内に注湯する差圧鋳
造装置により鋳造品を製造する際、1回の鋳造毎に、ス
トーク下端部の近傍に所要量の接種剤を配置することを
特徴とする差圧鋳造における接種方法。
When a casting is manufactured by a differential pressure casting device, in which a mold is installed above the molten metal container and the molten metal in the molten metal container is poured into the mold cavity with a differential pressure via a stalk, the stalk lower end is produced for each casting. An inoculation method in differential pressure casting, which comprises arranging a required amount of the inoculant near the portion.
JP29210892A 1992-10-06 1992-10-06 Inoculating method in differential pressure casting Pending JPH06114534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29210892A JPH06114534A (en) 1992-10-06 1992-10-06 Inoculating method in differential pressure casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29210892A JPH06114534A (en) 1992-10-06 1992-10-06 Inoculating method in differential pressure casting

Publications (1)

Publication Number Publication Date
JPH06114534A true JPH06114534A (en) 1994-04-26

Family

ID=17777654

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29210892A Pending JPH06114534A (en) 1992-10-06 1992-10-06 Inoculating method in differential pressure casting

Country Status (1)

Country Link
JP (1) JPH06114534A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009513934A (en) * 2003-07-09 2009-04-02 ヘレーウス エレクトロ−ナイト インターナシヨナル エヌ ヴイ Method and apparatus for measuring the cooling curve of a molten mass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009513934A (en) * 2003-07-09 2009-04-02 ヘレーウス エレクトロ−ナイト インターナシヨナル エヌ ヴイ Method and apparatus for measuring the cooling curve of a molten mass
KR101044301B1 (en) * 2003-07-09 2011-06-29 헤라우스 일렉트로-나이트 인터내셔날 엔. 브이. Method and device for measuring a melt cooling curve

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