JPH09239514A - Die to be used for die casting of cast iron - Google Patents
Die to be used for die casting of cast ironInfo
- Publication number
- JPH09239514A JPH09239514A JP4485396A JP4485396A JPH09239514A JP H09239514 A JPH09239514 A JP H09239514A JP 4485396 A JP4485396 A JP 4485396A JP 4485396 A JP4485396 A JP 4485396A JP H09239514 A JPH09239514 A JP H09239514A
- Authority
- JP
- Japan
- Prior art keywords
- die
- mold
- sand
- cast iron
- die casting
- 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.)
- Withdrawn
Links
- 238000004512 die casting Methods 0.000 title claims abstract description 36
- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 32
- 239000004576 sand Substances 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 abstract description 13
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical group C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 abstract description 10
- 230000013011 mating Effects 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 238000005336 cracking Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000010117 thixocasting Methods 0.000 description 4
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910001567 cementite Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋳鉄のダイカスト
に用いられる鋳型に関するものである。TECHNICAL FIELD The present invention relates to a mold used for die casting of cast iron.
【０００２】[0002]
【従来の技術】ダイカスト設備としては横型や縦型など
種々の形態のものがあるが、その基本構成は、例えば図
６に概要図で示す縦型ダイカスト設備のように、射出装
置11と金型12とで構成され、射出装置11は射出シリンダ
13、プランジャ14、射出スリーブ15を備え、また金型12
は製品キャビティ16が形成されている。そして、射出ス
リーブ15に溶湯17を注湯し、この射出スリーブ15に金型
12を前進させてセットした後、プランジャ14を前進駆動
させて溶湯17をキャビティ16内に射出するとともに所定
時間加圧保持し、しかる後、金型12を後退させ製品を取
り出しダイカストが行われる。このダイカストに使用さ
れる金型12は、通常ダイス鋼（例えばＳＫＤ６１）など
の金属で製造され、ダイカストに先立ち通常数 100℃に
予熱されている。2. Description of the Related Art There are various types of die casting equipment such as a horizontal type and a vertical type, and the basic structure thereof is, for example, as in the vertical die casting equipment shown in the schematic view of FIG. 12 and the injection device 11 is an injection cylinder
13, Plunger 14, Injection sleeve 15, Mold 12
Has a product cavity 16 formed therein. Then, the molten metal 17 is poured into the injection sleeve 15, and the mold is put in the injection sleeve 15.
After 12 is moved forward and set, the plunger 14 is driven forward to inject the molten metal 17 into the cavity 16 and pressurize and hold for a predetermined time, and then the die 12 is retracted to take out the product and die casting is performed. The die 12 used for this die casting is usually made of a metal such as die steel (for example, SKD61), and is usually preheated to several 100 ° C. prior to die casting.
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記ダイカ
ストにおいて、溶湯17が鋳鉄溶湯であったり、あるいは
固液共存温度域の鋳鉄スラリーである場合には、ダイカ
ストに先立ち金型12を数100℃に予熱して用いても、鋳
鉄溶湯や鋳鉄スラリーの温度が1100℃以上の高温である
ため金型12内で急冷されることになり、この急冷のため
鉄−セメンタイト系凝固が生じやすくなり、硬度の高い
セメンタイト組織が生成することになる。このセメンタ
イト組織が生成すると高硬度であるため、ダイカスト製
品に割れが生じやすくなる。このため、このような割れ
が懸念される製品においてはダイカスト後に改めて熱処
理を行い、セメンタイト組織を黒鉛組織へ変更させ硬度
を低下させるとともに割れの低減が図られる。By the way, in the above die casting, when the molten metal 17 is a cast iron molten metal or a cast iron slurry in the solid-liquid coexistence temperature range, the die 12 is heated to several 100 ° C. before die casting. Even when preheated and used, the temperature of the molten cast iron or cast iron slurry is 1100 ° C. or higher, so that it is rapidly cooled in the mold 12, and due to this rapid cooling, iron-cementite system solidification easily occurs, and the hardness A high cementite structure is generated. When this cementite structure is generated, the hardness is high, and thus the die cast product is likely to crack. Therefore, in a product in which such cracking is a concern, heat treatment is performed again after die casting to change the cementite structure to a graphite structure to reduce hardness and reduce cracking.
【０００４】一方、鋳鉄の通常の鋳造では、鋳鉄溶湯を
鋳型に流し込み鋳物製品が製造される。この場合、鋳型
は通常砂型が用いられるが、この砂型からなる鋳型を上
述したダイカストに用いるには、加圧力に対抗できる強
度が無いため砂型のみではダイカストに適用することは
できない。On the other hand, in ordinary casting of cast iron, a cast iron molten metal is poured into a mold to produce a cast product. In this case, a sand mold is usually used as the mold, but when the mold made of this sand mold is used in the above-mentioned die casting, it cannot be applied to the die casting only by the sand mold because it does not have sufficient strength to withstand the pressing force.
【０００５】そこで、本発明は、上述の如き事情の下に
なしたものであって、その目的は、ダイカスト中にセメ
ンタイト組織が生成するのを抑制し、以て改めて熱処理
を施すことなく黒鉛組織を生成せしめ、割れの少ない鋳
鉄製品を製造し得る鋳鉄のダイカストに用いられる鋳型
を提供するものである。Therefore, the present invention has been made under the circumstances as described above, and its purpose is to suppress the formation of a cementite structure during die casting, and thereby to further improve the graphite structure without heat treatment. The present invention provides a mold used for die casting of cast iron, which can produce cast iron products with less cracks.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明に係る鋳鉄のダイカストに用いられる鋳型
は、鋳鉄を鋳型に射出し加圧保持して成形する鋳鉄のダ
イカストに用いられる鋳型であって、鋳型が断熱鋳型と
この断熱鋳型をバックアップする金型よりなるものであ
る。In order to achieve the above object, the mold used in the cast iron die casting according to the present invention is used in the cast iron die casting in which the cast iron is injected into the mold and held under pressure. The mold comprises a heat insulating mold and a mold for backing up the heat insulating mold.
【０００７】そして、上記本発明に係る鋳鉄のダイカス
トに用いられる鋳型においては、断熱鋳型が一部に設け
られてあってもよいし、又は、断熱鋳型が砂型からなっ
ていてもよい。In the mold used for the die casting of cast iron according to the present invention, the heat insulating mold may be partially provided, or the heat insulating mold may be a sand mold.
【０００８】本発明では、断熱鋳型を用いているのでキ
ャビティに射出された鋳鉄溶湯の急冷が緩和され、ダイ
カスト中のセメンタイト組織の生成が抑制されると同時
に黒鉛組織が生成し、改めて熱処理を施すことなく割れ
の少ない鋳物製品を得ることができる。また、断熱鋳型
の外側には金型が密着して設けられているので、ダイカ
スト時に断熱鋳型にかかる加圧力をバックアップするこ
とができ、前記割れの少ない鋳物製品を安定して製造す
ることができる。また、断熱鋳型を鋳鉄製品の急冷され
やすい部分について成形し、その断熱鋳型を金型でバッ
クアップする構成としてもよく、このようにしても、セ
メンタイト組織の生成が抑制され改めて熱処理を施すこ
となく割れの少ない鋳物製品を得ることができる。In the present invention, since the heat insulating mold is used, the rapid cooling of the cast iron molten metal injected into the cavity is alleviated, the generation of the cementite structure in the die casting is suppressed, and at the same time the graphite structure is generated, and the heat treatment is performed again. It is possible to obtain a cast product with less cracks. Further, since the mold is closely attached to the outside of the heat insulating mold, it is possible to back up the pressing force applied to the heat insulating mold during die casting, and it is possible to stably manufacture the casting product with less cracks. . Further, the heat insulating mold may be formed for a portion of the cast iron product that is likely to be rapidly cooled, and the heat insulating mold may be backed up by a mold. Even in this case, the generation of the cementite structure is suppressed and cracking is not performed again without heat treatment. It is possible to obtain a cast product with a small amount.
【０００９】また、本発明では、ダイカストの際にキャ
ビティに射出した溶湯あるいは固液共存温度域の鋳鉄ス
ラリーが、金型にバックアップされている断熱鋳型によ
って急冷されることがないことから、溶湯や鋳鉄スラリ
ーが型の合わせ目から吹き出す現象が抑制され、更にバ
リの減少にもつながる。Further, in the present invention, the molten metal injected into the cavity during die casting or the cast iron slurry in the solid-liquid coexisting temperature range is not rapidly cooled by the heat insulating mold backed up by the mold, so The phenomenon that the cast iron slurry is blown out from the seam of the mold is suppressed, which further reduces burrs.
【００１０】また、本発明に係る鋳型は、鋳鉄素材（ビ
レット）を固液共存温度域に加熱してダイカストするチ
クソキャスト法、固液共存温度域の鋳鉄スラリーを直接
ダイカストスリーブに注入するレオキャスト法、及び液
相線温度以上の溶湯を直接ダイカストスリーブに注入す
る方法の何れにも適用できる。The mold according to the present invention is a thixocasting method in which a cast iron material (billet) is heated to a solid-liquid coexisting temperature range and is die cast, and a cast iron slurry in the solid-liquid coexisting temperature range is directly injected into a die casting sleeve. Both the method and the method of directly injecting the molten metal having a liquidus temperature or higher into the die casting sleeve can be applied.
【００１１】[0011]
【発明の実施の形態】以下、本発明に係る実施の形態を
図面を参照して説明する。図１は、本発明に係る鋳型の
説明図であって、ａは本発明に係る鋳型の全体斜視図、
ｂは本発明に係る砂型からなる断熱鋳型の斜視図であ
る。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view of a mold according to the present invention, wherein a is an overall perspective view of the mold according to the present invention,
FIG. 3b is a perspective view of a heat insulating mold made of a sand mold according to the present invention.
【００１２】本発明に係る鋳型１は、砂型（断熱鋳型）
２と金型３とで基本的に構成され、砂型２の内部には鋳
鉄製品の形状に合わせてキャビティ４が成形され、また
砂型２の合わせ面５にはキャビティ４に連通する湯道６
が成形されている。また砂型２の外形は概ね直方体に成
形されている。なお、本例では砂型２を例としている
が、他にシェルモールド、セラミック型なども好適に使
用でき、実用的には熱伝導率で10-2cal/(cm ・sec ・de
g)以下の材質がよい。因みに、砂型の熱伝導率は1.5×1
0-3cal/(cm ・sec ・deg)〔ただし室温〕程度である。The mold 1 according to the present invention is a sand mold (heat insulating mold).
2 and a metal mold 3, and a cavity 4 is formed inside the sand mold 2 to match the shape of the cast iron product, and a mating surface 5 of the sand mold 2 has a runner 6 communicating with the cavity 4.
Is molded. Further, the outer shape of the sand mold 2 is formed into a substantially rectangular parallelepiped. In this example, the sand mold 2 is taken as an example, but a shell mold, a ceramic mold, etc. can also be suitably used, and in practical use, the thermal conductivity is 10 -2 cal / (cm · sec · de
g) The following materials are recommended. By the way, the sand mold has a thermal conductivity of 1.5 × 1
It is about 0 -3 cal / (cm-sec-deg) [at room temperature].
【００１３】一方、金型３は、鋼、銅等の金属からなり
その内部には砂型２を装入せしめてバックアップするた
めの窪み７が設けられ、また金型３の合わせ面８には砂
型２の合わせ面５に成形した湯道６に連通する湯道９が
設けられている。なお、従来汎用されている金型（ＳＫ
Ｄ６１）、金型（ＳＵＳ３０４）の熱伝導率はそれぞれ
1.2×10-1cal/(cm ・sec ・deg)〔ただし室温〕、 3.6
×10-2cal/(cm ・sec・deg)〔ただし室温〕程度であ
る。On the other hand, the mold 3 is made of a metal such as steel or copper, and a recess 7 is provided inside the mold 3 for backing up by inserting the sand mold 2, and the mating surface 8 of the mold 3 has a sand mold 2. A runner 9 communicating with a runner 6 formed on the two mating surfaces 5 is provided. In addition, the metal mold (SK
D61) and the mold (SUS304) have thermal conductivity of
1.2 × 10 -1 cal / (cm ・ sec ・ deg) (at room temperature), 3.6
It is about × 10 -2 cal / (cm · sec · deg) [at room temperature].
【００１４】[0014]
〔実施例１〕図６に示す縦型ダイカスト設備に上記図１
に示す鋳型１をセットし、片状黒鉛鋳鉄(3.2％Ｃ−2.12
％Ｓｉ）ビレットを固相率 0.2の1200℃に加熱してチク
ソキャスト法によりダイカストし、図２に示す幅 100mm
×高さ 150mm×厚さ 6mmの板状製品を製作した。また、
比較のため金型（ＳＫＤ６１）のみによって同寸法の板
状製品を同要領でチクソキャスト法によりダイカストし
た。３枚づつダイカストして得られた板状製品の割れ個
数を図３に比較して示す。図３によれば本発明の鋳型を
用いると割れが大幅に減少することが分かる。なお、図
４は板状製品の割れ状況を示す説明図である。[Embodiment 1] The vertical die casting equipment shown in FIG.
Set the mold 1 as shown in Fig. 2 and put in flake graphite cast iron (3.2% C-2.12).
% Si) billet is heated to 1200 ° C with a solid fraction of 0.2 and die-cast by the thixocast method to obtain a width of 100 mm shown in Fig. 2.
A plate product with a height of 150 mm and a thickness of 6 mm was manufactured. Also,
For comparison, a plate-shaped product having the same size was die-cast by the thixocasting method in the same manner using only the mold (SKD61). The number of cracks in the plate-shaped product obtained by die-casting every 3 sheets is shown in comparison with FIG. It can be seen from FIG. 3 that the number of cracks is significantly reduced by using the mold of the present invention. Note that FIG. 4 is an explanatory diagram showing a cracking state of the plate-shaped product.
【００１５】〔実施例２〕上記実施例１と同様に、図６
に示す縦型ダイカスト設備に上記図１に示す鋳型１をセ
ットし、球状黒鉛鋳鉄(3.4％Ｃ−2.66％Ｓｉ−0.03％Ｍ
ｇ）をチクソキャスト法によりダイカストし、図２に示
す幅 100mm×高さ 150mm×厚さ 6mmの板状製品を製作し
た。また、比較のため金型（ＳＫＤ６１）のみによって
同寸法の板状製品を同要領でチクソキャスト法によりダ
イカストした。本実施例においても本発明の鋳型を用い
ると割れが大幅に減少した。そして、本例ではダイカス
ト後のミクロ組織を調査した。その結果を図５に示す。
図５ａは本発明の鋳型を用いた場合、図５ｂは比較のた
めの金型（ＳＫＤ６１）を用いた場合、図５ｃは比較の
ための金型（ＳＫＤ６１）を用い、後熱処理（熱処理条
件： 950℃×15分 →750℃× 3hr）した場合のそれぞ
れミクロ組織である。[Embodiment 2] As in Embodiment 1 above, FIG.
The mold 1 shown in FIG. 1 was set in the vertical die casting equipment shown in FIG. 1 and spheroidal graphite cast iron (3.4% C-2.66% Si-0.03% M
g) was die-cast by the thixocasting method to produce a plate-like product having a width of 100 mm, a height of 150 mm and a thickness of 6 mm as shown in FIG. For comparison, a plate-shaped product having the same size was die-cast by the thixocasting method in the same manner using only the mold (SKD61). Also in this example, when the mold of the present invention was used, cracking was significantly reduced. Then, in this example, the microstructure after die casting was investigated. The result is shown in FIG.
FIG. 5a shows the case of using the mold of the present invention, FIG. 5b shows the case of using the comparative mold (SKD61), and FIG. 5c shows the case of using the comparative mold (SKD61), and the post heat treatment (heat treatment condition: 950 ℃ × 15 minutes → 750 ℃ × 3hr), each microstructure.
【００１６】図５から明らかなように、本発明の鋳型を
用いた場合にはセメンタイトは生成せず、球状黒鉛組織
となるが、従来のように金型（ＳＫＤ６１）を用いると
液相が急冷されて硬いセメンタイト組織となり、それを
熱処理すると黒鉛組織が生成することが分かる。従い、
本発明の鋳型を用いた場合には熱処理の必要がなくな
る。As is apparent from FIG. 5, when the mold of the present invention is used, cementite is not formed and a spheroidal graphite structure is formed, but when a mold (SKD61) is used as in the conventional case, the liquid phase is rapidly cooled. It can be seen that the hardened cementite structure is formed and a graphite structure is formed by heat treatment. Therefore,
When the template of the present invention is used, heat treatment is unnecessary.
【００１７】〔実施例３〕上記実施例１と同様に、図６
に示す縦型ダイカスト設備に上記図１に示す鋳型１をセ
ットし、片状黒鉛鋳鉄(3.2％Ｃ−2.12％Ｓｉ）と球状黒
鉛鋳鉄(3.4％Ｃ−2.66％Ｓｉ−0.03％Ｍｇ）をそれぞれ
1350℃の溶湯状態にし射出スリーブに注入してダイカス
トし、図２に示す幅 100mm×高さ 150mm×厚さ 6mmの板
状製品を製作した。また、比較のため金型（ＳＫＤ６
１）のみによって同寸法の板状製品を同要領でダイカス
トした。本実施例においても本発明の鋳型を用いると割
れが大幅に減少した。[Embodiment 3] As in Embodiment 1 above, FIG.
Set the mold 1 shown in Fig. 1 in the vertical die-casting equipment shown in Fig. 1 and add flake graphite cast iron (3.2% C-2.12% Si) and spheroidal graphite cast iron (3.4% C-2.66% Si-0.03% Mg), respectively.
A molten product at 1350 ° C was poured into an injection sleeve and die-cast to produce a plate-like product having a width of 100 mm × a height of 150 mm × a thickness of 6 mm. In addition, for comparison, the mold (SKD6
A plate-shaped product of the same size was die-cast by the same procedure as in 1) only. Also in this example, when the mold of the present invention was used, cracking was significantly reduced.
【００１８】[0018]
【発明の効果】以上説明したように、本発明に係る鋳鉄
のダイカストに用いられる鋳型によれば、鋳鉄製品内に
硬いセメンタイト組織の生成が防止され、鋳鉄製品の熱
処理が省略できるとともに、鋳鉄製品のダイカスト時の
割れが減少できる。As described above, according to the mold used for die casting of cast iron according to the present invention, generation of a hard cementite structure in the cast iron product is prevented, heat treatment of the cast iron product can be omitted, and the cast iron product can be omitted. The cracks during die casting can be reduced.
【図１】本発明に係る鋳型の説明図であって、ａは本発
明に係る鋳型の全体斜視図、ｂは本発明に係る砂型から
なる断熱鋳型の斜視図である。FIG. 1 is an explanatory view of a mold according to the present invention, in which a is an overall perspective view of the mold according to the present invention, and b is a perspective view of a heat insulating mold made of a sand mold according to the present invention.
【図２】本発明に係る鋳型でダイカストした板状製品の
説明図であって、ａは正面図、ｂは側面図である。FIG. 2 is an explanatory view of a plate-shaped product die-cast with a mold according to the present invention, in which a is a front view and b is a side view.
【図３】本発明に係る鋳型でダイカストした板状製品の
割れ個数を従来例と比較して示すグラフ図である。FIG. 3 is a graph showing the number of cracks in a plate-shaped product die-cast with a mold according to the present invention in comparison with a conventional example.
【図４】板状製品の割れ状況を示す説明図である。FIG. 4 is an explanatory diagram showing a cracked state of a plate-shaped product.
【図５】ダイカストして得た板状製品のミクロ組織図で
あって、ａは本発明の鋳型を用いた場合、ｂは金型（Ｓ
ＫＤ６１）を用いた場合、ｃは金型（ＳＫＤ６１）を用
いたものに更に熱処理した場合のそれぞれミクロ組織図
である。FIG. 5 is a microstructure diagram of a plate-shaped product obtained by die casting, where a is the mold of the present invention, b is the mold (S
In the case of using KD61), c is a microstructure diagram of a case using a mold (SKD61) and further heat treatment.
【図６】縦型ダイカスト設備の概要図である。FIG. 6 is a schematic view of vertical die casting equipment.
１：鋳型 ２：砂型
３：金型 ４：キャビティ ５，８：合わせ面
６，９：湯道 ７：窪み1: Mold 2: Sand mold
3: Mold 4: Cavity 5, 8: Mating surface
6, 9: runner 7: hollow
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高橋 洋一 兵庫県神戸市西区高塚台１丁目５番５号 株式会社神戸製鋼所神戸総合技術研究所内 (72)発明者 安堂 優一 兵庫県神戸市西区高塚台１丁目５番５号 株式会社神戸製鋼所神戸総合技術研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yoichi Takahashi 1-5-5 Takatsukadai, Nishi-ku, Kobe-shi, Hyogo Prefecture Kobe Steel Co., Ltd. Kobe Research Institute (72) Inventor Yuichi Ando Takatsuka, Nishi-ku, Kobe-shi, Hyogo 1-5-5 stand, Kobe Steel, Ltd. Kobe Research Institute
Claims (3)
る鋳鉄のダイカストに用いられる鋳型であって、鋳型が
断熱鋳型とこの断熱鋳型をバックアップする金型よりな
ることを特徴とする鋳鉄のダイカストに用いられる鋳
型。1. A mold used for die casting of cast iron for injecting cast iron into a mold and holding it under pressure, wherein the mold comprises an adiabatic mold and a mold for backing up this adiabatic mold. Mold used for die casting.
１記載の鋳鉄のダイカストに用いられる鋳型。2. The mold used for die casting of cast iron according to claim 1, wherein a heat insulating mold is provided in part.
鋳鉄のダイカストに用いられる鋳型。3. The mold used for die casting of cast iron according to claim 1, wherein the heat insulating mold is a sand mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4485396A JPH09239514A (en) | 1996-03-01 | 1996-03-01 | Die to be used for die casting of cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4485396A JPH09239514A (en) | 1996-03-01 | 1996-03-01 | Die to be used for die casting of cast iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09239514A true JPH09239514A (en) | 1997-09-16 |
Family
ID=12703049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4485396A Withdrawn JPH09239514A (en) | 1996-03-01 | 1996-03-01 | Die to be used for die casting of cast iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09239514A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1440748A1 (en) * | 2003-01-27 | 2004-07-28 | Toyota Jidosha Kabushiki Kaisha | Method of die casting spheroidal graphite cast iron |
| JP2013158808A (en) * | 2012-02-06 | 2013-08-19 | Suguro Tekko:Kk | Bottomed cylindrical metal member and method of manufacturing the same |
| JP2018034202A (en) * | 2016-09-04 | 2018-03-08 | 国立大学法人東北大学 | Semi-solidified casting method of spheroidal graphite cast iron and product of semi-solidified casting |
| JP2021045795A (en) * | 2020-12-25 | 2021-03-25 | 国立大学法人東北大学 | Semi-solid casting method and semi-solid casting of spheroidal graphite cast iron |
-
1996
- 1996-03-01 JP JP4485396A patent/JPH09239514A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1440748A1 (en) * | 2003-01-27 | 2004-07-28 | Toyota Jidosha Kabushiki Kaisha | Method of die casting spheroidal graphite cast iron |
| US7134478B2 (en) | 2003-01-27 | 2006-11-14 | Toyota Jidosha Kabushiki Kaisha | Method of die casting spheroidal graphite cast iron |
| JP2013158808A (en) * | 2012-02-06 | 2013-08-19 | Suguro Tekko:Kk | Bottomed cylindrical metal member and method of manufacturing the same |
| JP2018034202A (en) * | 2016-09-04 | 2018-03-08 | 国立大学法人東北大学 | Semi-solidified casting method of spheroidal graphite cast iron and product of semi-solidified casting |
| WO2018043685A1 (en) * | 2016-09-04 | 2018-03-08 | 国立大学法人東北大学 | Spherical graphite cast iron semi-solid casting method and semi-solid cast product |
| US11920205B2 (en) | 2016-09-04 | 2024-03-05 | Tohoku University | Spherical graphite cast iron semi-solid casting method and semi-solid cast product |
| JP2021045795A (en) * | 2020-12-25 | 2021-03-25 | 国立大学法人東北大学 | Semi-solid casting method and semi-solid casting of spheroidal graphite cast iron |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5803151A (en) | Soluble core method of manufacturing metal cast products | |
| JP3212245B2 (en) | Casting method, casting apparatus and casting | |
| EP0778099A3 (en) | Die casting process and die casting apparatus | |
| CN103121095B (en) | Squeeze casting preparation technology of AZ91D rare earth magnesium alloy | |
| CN107604189B (en) | A kind of foam aluminum sandwich and its Semi-Solid Thixoforming Seepage Foundry method | |
| JPH09239514A (en) | Die to be used for die casting of cast iron | |
| AU633154B2 (en) | Method of controlling the rate of heat extraction in mould casting | |
| JP3126704B2 (en) | Casting method for castings with composite materials cast | |
| JPS5838654A (en) | Casting method for composite member | |
| US7165598B2 (en) | Magnesium alloy and methods for making | |
| JPH09239513A (en) | Die to be used for die casting of cast iron | |
| GB1449052A (en) | Ingot moulds | |
| JPS619943A (en) | Casting method of holding single or plural areas of mold under state of heating | |
| EP1348504B1 (en) | Billet, horizontal continuous casting process, and thixocasting process | |
| JP3214657B2 (en) | Piston for internal combustion engine and method of manufacturing the same | |
| JPH09155523A (en) | Die casting machine sleeve and manufacturing method thereof | |
| WO2018043685A1 (en) | Spherical graphite cast iron semi-solid casting method and semi-solid cast product | |
| Chaban et al. | Quality of killed steel cast into big-end-down ingots without heat-insulation inserts | |
| JPH05305410A (en) | Pressing tip for forming metallic material | |
| JPS5924567A (en) | Injection device for vertical type die casting machine | |
| JPH04365824A (en) | Production of slider for current collector | |
| SU1696127A1 (en) | Metal mould for casting of pig iron cambered rolls | |
| SU1696129A1 (en) | Method of manufacture of cast-in slabs | |
| JPS62101366A (en) | Molten metal forging device | |
| SU453238A1 (en) | METHOD OF CASTING OF IRON ROLLS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030506 |