JPH06114523A - Die casting method for half-melting metal and die therefor - Google Patents

Die casting method for half-melting metal and die therefor

Info

Publication number
JPH06114523A
JPH06114523A JP27174192A JP27174192A JPH06114523A JP H06114523 A JPH06114523 A JP H06114523A JP 27174192 A JP27174192 A JP 27174192A JP 27174192 A JP27174192 A JP 27174192A JP H06114523 A JPH06114523 A JP H06114523A
Authority
JP
Japan
Prior art keywords
mold
protective gas
die
injection sleeve
cavity
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
JP27174192A
Other languages
Japanese (ja)
Inventor
Seiro Hachiman
誠朗 八幡
Kunio Kitamura
邦雄 北村
Yuichi Ando
優一 安堂
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.)
LEO TEC KK
Original Assignee
LEO TEC KK
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 LEO TEC KK filed Critical LEO TEC KK
Priority to JP27174192A priority Critical patent/JPH06114523A/en
Publication of JPH06114523A publication Critical patent/JPH06114523A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain a die casting product of high m.p. material having excellent quality and economics by supplying protecting gas from a protecting gas introducing hole juxtaposed so as to be possible to change to a gas venting hole through a cavity in a die and the course from a gate to an injection sleeve. CONSTITUTION:At the time of heating a bulky raw material 12-1 in the injection sleeve 9, the protecting gas is supplied from the protecting gas introducing hole 1 juxtaposed so as to be possible to change to the gas venting hole 2 through the cavity 3 in the die and the course from the gate 4 to the injection sleeve 9. By this method, the protecting gas fills up the space from the cavity 3 in the die to the surroundings of the raw material in the injection sleeve 9 through the gate 4 and discharged to the air from the charging hole of the raw material in the injection sleeve 9, and the raw material is covered with the protecting gas atmosphere, and the oxidation by heating can be prevented.

Description

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

【0001】[0001]

【産業上の利用分野】この発明は、金属又は金属基複合
材を素材とする半融金属のダイカストに関し、経済性に
優れ、酸化物の少ない品質の優れた製品を得るためのダ
イカスト法とその金型を提案するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semi-molten metal die-casting made of a metal or a metal-based composite material, and a die-casting method for obtaining an excellent product with excellent economical efficiency and little oxide. This is a mold proposal.

【0002】これまでダイカスト成形法としては金属被
加工材の溶湯をダイカスト成形機のスリーブに給湯し、
これを射出シタンダーによりダイカスト金型キャビティ
内へ射出する成形加工方法が一般的であるが、高融点材
料への適用、金型の寿命延長、製品の品質向上などの観
点から、固体状態の合金又は金属基複合材の一部が溶融
した半融状態すなわち固液共存域に加熱し、これを成形
加工するいわゆる半融金属のダイカスト法の開発が進め
られている。このダイカスト法は、素材を、その一部が
溶融する固液共存域に加熱することにより、網状に連結
した固相の隙間に液相が保持される状態で全体として固
体状で加熱位置から金型まで移動でき、さらに射出時に
は、素材に働く大きな力により網状の固相は破壊され、
この破壊された固相の粒が液体中に浮遊して液体と同様
の挙動を示し、金型内に材料が充満するものである。
Up to now, as a die casting method, a molten metal material is supplied to a sleeve of a die casting machine,
A molding method in which this is injected into the die-casting mold cavity by an injection cister is generally used, but from the viewpoint of application to high melting point materials, extension of mold life, product quality improvement, etc., solid state alloy or Development of a so-called semi-molten metal die casting method, in which a part of the metal-based composite material is heated to a melted semi-molten state, that is, a solid-liquid coexisting region, and this is molded and processed. In this die casting method, the material is heated in the solid-liquid coexistence region where a part of it melts, and the liquid phase is held in the interstices of the solid phases connected in a net-like manner. It can be moved to the mold, and during injection, the net-like solid phase is destroyed by the large force acting on the material,
The broken solid phase particles float in the liquid and behave like a liquid, and the mold is filled with the material.

【0003】なお上記において、母金属の固相は基本的
には液相と同じ成分組成から生じたものであり、適当な
条件で製造した製品においては固相は微細であり品質特
性への悪影響は少なく、また必要な場合には高温で短時
間加熱して拡散により調質することも可能である。
In the above, the solid phase of the mother metal is basically generated from the same composition as the liquid phase, and in a product manufactured under appropriate conditions, the solid phase is fine and adversely affects the quality characteristics. It is also possible to heat the material for a short time at a high temperature for a short period of time to perform heat treatment by diffusion if necessary.

【0004】[0004]

【従来の技術】塊状の半融金属のダイカストにおいて、
加熱して射出する際に素材表面が酸化するとこの酸化物
が製品内にも混入し製品の品質を劣化させる。このため
保護ガス雰囲気中で素材を加熱し射出すればよいがこれ
までに適当な手段が実行されていなかったし、これにつ
いての文献を探査したが、該当するものは見出せなかっ
た。
2. Description of the Related Art In die casting of massive semi-molten metal,
If the surface of the material is oxidized during heating and injection, this oxide also mixes in the product and deteriorates the quality of the product. Therefore, it suffices to heat and inject the material in a protective gas atmosphere, but no suitable means has been implemented so far, and the literature on this was searched, but no relevant one was found.

【0005】[0005]

【発明が解決しようとする課題】素材を保護ガス雰囲気
中で加熱し射出する手段として下記する方法が考えられ
るが、それぞれに下記する問題がある。
The following methods can be considered as means for heating and injecting a material in a protective gas atmosphere, but each has the following problems.

【0006】 保護ガス雰囲気炉で固液共存域の温度
に加熱した素材を、ダイカスト成形機の射出スリーブ内
へ移送して射出する方法では、素材の加熱中の酸化は防
止できるが、素材を炉から移送し射出するまでの間の酸
化を防止することはできない。さらに、固液共存域の素
材は脆弱であるため移送のために大きな力をかけること
ができず、移送には時間がかかり、この間に酸化の増進
及び温度低下をもたらすという問題がある。
In the method of transferring and injecting the material heated to the temperature of the solid-liquid coexisting region in the protective gas atmosphere furnace into the injection sleeve of the die-cast molding machine, oxidation can be prevented during heating of the material, but the material is heated in the furnace. It is not possible to prevent oxidation during the period from transfer to injection. Further, since the material in the solid-liquid coexisting region is fragile, a large amount of force cannot be applied for the transfer, and the transfer takes time, which causes an increase in oxidation and a decrease in temperature.

【0007】 ダイカスト成形機の射出スリーブをセ
ラミックス製としこのスリーブ内で素材を高周波加熱す
れば上記の項の移送上の問題は解決するが次に述べる
問題が生じる。 ・ 射出スリーブの素材挿入口から保護ガスを供給する
場合、素材挿入口を完全に閉鎖することは困難であり、
ここから保護ガスが漏れ素材を完全に保護ガス雰囲気中
におくことが難しい。 ・ 金型側に保護ガス導入口をもうけてここから保護ガ
スを供給する場合、その位置によっては、高温の固液共
存域の素材が数百〜千数百気圧の高圧で射出されるた
め、その材料が保護ガス導入口に入り凝固して金型の繰
り返し使用ができなくなる場合が生じる。
If the injection sleeve of the die-cast molding machine is made of ceramics and the material is heated by high frequency in this sleeve, the above-mentioned transfer problem is solved, but the following problem occurs. -When supplying protective gas from the material insertion port of the injection sleeve, it is difficult to completely close the material insertion port,
Protective gas leaks from here and it is difficult to leave the material completely in the protective gas atmosphere.・ If a protective gas inlet is provided on the mold side and the protective gas is supplied from here, the material in the high temperature solid-liquid coexistence region is injected at a high pressure of several hundred to several thousand and several hundreds of atmospheric pressure depending on the position, In some cases, the material may enter the protective gas inlet and solidify to prevent repeated use of the mold.

【0008】したがってこの発明は、射出スリーブ内で
加熱する方法を用い、上記問題点を有利に解決する酸化
のない半融金属のダイカスト法及びその金型を提案する
ことを目的とする。
Therefore, an object of the present invention is to propose a die-casting method for a semi-molten metal which does not oxidize, and a mold for the same, which uses the method of heating in the injection sleeve and advantageously solves the above problems.

【0009】[0009]

【課題を解決するための手段】この発明の要旨は、金属
又は金属基複合材の塊状素材を、射出スリーブ内の保護
ガス雰囲気のもとで部分的な融解下に固形状に維持され
得る半融状態に加熱したのち、射出プランジャにより金
型内へ射出する半融金属のダイカスト法において、素材
を加熱するにあたり、ガス抜き口と交替作動可能に並設
した保護ガス導入口より、金型のキャビティを経てゲー
トから射出スリーブに至る径路にて保護ガスを供給して
金型のキャビティ及び射出スリーブ内のパージ置換を行
うことを特徴とする半融金属のダイカスト法であり、
SUMMARY OF THE INVENTION The gist of the present invention is that a semi-solid material of metal or metal-based composite material can be kept solid under partial melting under a protective gas atmosphere in an injection sleeve. In the die-casting method of semi-molten metal that is heated into the molten state and then injected into the mold by the injection plunger, when heating the material, from the protective gas introduction port that is installed in parallel with the gas vent port so that it can be operated alternately, A die-casting method of semi-molten metal, characterized in that a protective gas is supplied in a path from a gate to an injection sleeve via a cavity to perform purge replacement in the cavity of the mold and the injection sleeve,

【0010】開閉可能な保護ガス導入口を開閉可能なガ
ス抜き口と並列に、金型のキャビティとの連通下に配設
して成る半融金属のダイカスト金型であり、さらに、金
型のキャビティと保護ガス導入口及びガス抜き口との通
路に、ばり溜り又はばり溜り及び多孔質材を設けてなる
半融金属のダイカスト金型である。
A semi-molten metal die casting mold in which an openable / closable protective gas inlet is arranged in parallel with an openable / closable gas vent in communication with a cavity of the mold. A die-casting mold of semi-molten metal in which a burrs pool or a burrs pool and a porous material are provided in the passages between the cavity and the protective gas introduction port and the gas vent port.

【0011】[0011]

【作用】この発明の作用を以下に述べる。射出スリーブ
内での塊状素材の加熱にあたっては、ガス抜き口と交替
作動可能に並設した保護ガス導入口より、金型のキャビ
ティを経てゲートから射出スリーブに至る径路で保護ガ
スを供給することにより、保護ガスは金型のキャビティ
からゲートを通じて射出スリーブ内の素材周辺に至る空
間を満たし、射出スリーブの素材挿入口より大気中に放
出される。かくすることにより、素材は保護ガス雰囲気
で覆われ、加熱による酸化を防止できる。
The operation of the present invention will be described below. When heating the block material in the injection sleeve, the protective gas is supplied from the protective gas inlet that is installed side by side with the gas vent so that it can be operated alternately, and through the path from the gate through the cavity of the mold to the injection sleeve. The protective gas fills the space from the mold cavity through the gate to the periphery of the material inside the injection sleeve, and is discharged into the atmosphere from the material insertion port of the injection sleeve. By doing so, the material is covered with a protective gas atmosphere and oxidation due to heating can be prevented.

【0012】さらに具体的には、開閉可能な保護ガス導
入口を開閉可能なガス抜き口と並列に配設した金型を用
いて、保護ガス導入口から保護ガスを供給することによ
り、保護ガスは上記した径路で射出スリーブ内に達し素
材周辺を覆うことができる。その際、ガス抜き口からの
保護ガスの流出を防ぐためガス抜き口を閉じておくこと
が肝要である。
More specifically, the protective gas is supplied from the protective gas introducing port by using a mold in which the opening and closing protective gas introducing port is arranged in parallel with the openable and closable gas releasing port. Can reach the inside of the injection sleeve by the above-mentioned path and cover the periphery of the material. At this time, it is important to close the gas vent in order to prevent the protective gas from flowing out from the gas vent.

【0013】また、射出時には、保護ガス導入口を閉
じ、ガス抜き口を開くことにより、保護ガス供給系に金
型のガスが流入することを防止し、金型内のガスはガス
抜き口より大気中に排出される。
During injection, the protective gas inlet is closed and the gas vent is opened to prevent the gas of the mold from flowing into the protective gas supply system, and the gas in the mold is discharged from the gas vent. Emitted into the atmosphere.

【0014】なお、これらの開閉には電磁バルブを用
い、ダイカスト成形機の射出プランジャの移動により働
く位置検出のリミットスイッチ等により行うことが好適
である。
It is preferable that an electromagnetic valve is used for opening and closing these elements, and a limit switch for position detection which works by moving the injection plunger of the die casting machine is used.

【0015】さらに、素材の温度及び圧力は素材がゲー
トから金型のキャビティを通過する過程で低下するた
め、金型のキャビティと保護ガス導入口及びガス抜き口
との通路にばり溜り又はこれに加えて多孔質材を設ける
ことにより、金型のキャビティを通過した過剰の材料が
保護ガス導入口及びガス抜き口へ浸入することを防止す
ることができる。
Further, since the temperature and pressure of the material decrease as the material passes from the gate through the cavity of the mold, it accumulates in the passage between the mold cavity and the protective gas introduction port and the gas vent port, or collects in this. In addition, by providing the porous material, it is possible to prevent excess material that has passed through the cavity of the mold from entering the protective gas inlet and the gas outlet.

【0016】上記したように、射出スリーブ内で素材を
加熱するにあたっては、保護ガスが金型キャビティ、ゲ
ートを通じて射出スリーブ内の素材近傍を覆うことによ
り、素材の酸化が防止でき、射出に際しては、ばり溜り
又はこれに加えて多孔質材を設けることにより、保護ガ
ス導入口及びカス抜き口に材料が浸入することを防止で
きる。したがって、酸化物の少くない品質の優れた製品
が得られ、金型も繰り返し使用することができる。
As described above, when the material is heated in the injection sleeve, the protective gas covers the vicinity of the material in the injection sleeve through the mold cavity and the gate, so that the material can be prevented from being oxidized. By providing a burr pool or a porous material in addition to this, it is possible to prevent the material from entering the protective gas inlet and the dust outlet. Therefore, a product having a small amount of oxide and excellent quality can be obtained, and the mold can be repeatedly used.

【0017】[0017]

【実施例】【Example】

実施例1 直径:58mm、長さ:50mmの寸法のCu −8wt% Sn 銅
合金を素材として用い、この発明の適合例として、図1
(及び図2〜4)に示すこの発明に適合する装置を用
い、ガス抜きバルブを閉じた状態で保護ガス導入口バル
ブを開き、ここから保護ガスを供給しながら射出スリー
ブ内で素材を半融状態に高周波加熱したのち、1つは急
冷して素材表面の酸化状況を調査し、他の1つは保護ガ
ス導入口バルブを閉じガス抜きバルブを開いて、加熱し
た素材を金型内へ射出し、保護ガス導入口及びガス抜き
口への材料の浸入状況を調査した。
Example 1 A Cu-8 wt% Sn copper alloy having a diameter of 58 mm and a length of 50 mm was used as a material.
(And FIGS. 2 to 4) using the apparatus according to the present invention, the protective gas inlet valve is opened with the gas vent valve closed, and the material is semi-melted in the injection sleeve while supplying the protective gas from here. After high frequency heating to a state, one is rapidly cooled to investigate the oxidation state of the material surface, and the other one is to close the protective gas inlet valve and open the degassing valve to inject the heated material into the mold. Then, the infiltration situation of the material into the protective gas inlet and the gas outlet was investigated.

【0018】一方比較例として、図5に示す装置を用い
て射出スリーブの素材挿入口に設けた保護ガス導入口か
ら保護ガスを装置内に供給しながら射出スリーブ内で素
材を半融状態に高周波誘導加熱したのち急冷し、素材表
面の酸化状態を調査した。なお、保護ガスには、H2
8%、CO:6%、CO2 :6%:N2 :80%の組成に
なる発熱性ガスを用い、加熱開始前に10リットルの発熱
性ガスを30秒間で供給して射出スリーブ等装置内を上記
発熱性ガスで置換したのち加熱を開始し、加熱中は3リ
ットル/分の流量で発熱性ガスを装置内へ供給した。
On the other hand, as a comparative example, the apparatus shown in FIG. 5 is used to supply a protective gas into the apparatus from a protective gas inlet provided at the material insertion opening of the injection sleeve, and the material is semi-molten in the injection sleeve at a high frequency. After induction heating, it was cooled rapidly and the oxidation state of the material surface was investigated. The protective gas contains H 2 :
8%, CO: 6%, CO 2: 6%: N 2: with 80% of the exothermic gas made to the composition, supplied to the injection sleeve or the like device for 30 seconds with 10 liters of exothermic gas before the start of heating After replacing the inside with the exothermic gas, heating was started, and during the heating, the exothermic gas was supplied into the apparatus at a flow rate of 3 l / min.

【0019】加熱条件及び調査結果を表1に示す。Table 1 shows the heating conditions and the investigation results.

【表1】 [Table 1]

【0020】表1から明らかなように試料 No.2の比較
例には酸化が見られたのに対し、試料 No.1の適合例に
は全面にわたって酸化は見られなく、かつ、この場合保
護ガス導入口及びガス抜き口への材料の浸入は全く見ら
れなかった。
As is apparent from Table 1, oxidation was observed in the comparative example of sample No. 2, whereas no oxidation was observed over the entire surface of the conforming example of sample No. 1, and in this case, protection was performed. No entry of material into the gas inlet and gas outlet was observed.

【0021】ここに、上記した図1〜5について以下に
説明する。図1及び2は、この発明に適合する装置の説
明図で、図1は射出前、図2は射出後の状態を示す。ま
た、図3は図1におけるA部詳細説明図であり、図4は
図3におけるB−B矢視図である。
The above-mentioned FIGS. 1 to 5 will be described below. 1 and 2 are explanatory views of an apparatus conforming to the present invention. FIG. 1 shows a state before injection and FIG. 2 shows a state after injection. Further, FIG. 3 is a detailed explanatory view of a portion A in FIG. 1, and FIG. 4 is a view as seen from an arrow BB in FIG.

【0022】これらの図において、1は保護ガス導入
口、2はガス抜き口でありこの両者は並列に配設されて
いる。さらに、3は金型のキャビティ、4はゲート、5
は可動盤、6は固定盤、7は可動金型、8は固定金型、
9はセラミックス製の射出スリーブ、10は高周波加熱コ
イル、11は射出スリーブ9に設けた素材挿入口、12−1
は素材、13は射出プランジャチップ、14は射出プランジ
ャロッドであり、15は金型のキャビティ3と保護ガス導
入口1及びガス抜き口2との通路に設けたばり溜りであ
る。
In these figures, 1 is a protective gas inlet and 2 is a gas outlet, both of which are arranged in parallel. Further, 3 is a mold cavity, 4 is a gate, 5
Is a movable plate, 6 is a fixed plate, 7 is a movable mold, 8 is a fixed mold,
9 is a ceramic injection sleeve, 10 is a high frequency heating coil, 11 is a material insertion port provided in the injection sleeve 9, 12-1
Is a material, 13 is an injection plunger tip, 14 is an injection plunger rod, and 15 is a flash reservoir provided in a passage between the mold cavity 3 and the protective gas inlet 1 and the gas outlet 2.

【0023】なお、図2における12−2は射出された材
料を示す。また、図3において18は金型のキャビティ3
と保護ガス導入口1及びガス抜き口2との通路に設けた
多孔質材であり、16及び17はそれぞれ保護ガス導入口1
及びガス抜き口2のバルブである。そして図4において
は、多孔質材18でガードされた保護ガス導入口1及び保
護ガス導入口バルブ16と、多孔質材18でガードされたガ
ス抜き口2及びガス抜き口バルブ17とが並列に配設され
ていることを示す。
In addition, 12-2 in FIG. 2 shows the injected material. Further, in FIG. 3, 18 is a cavity 3 of the mold.
Is a porous material provided in the passage between the protective gas inlet 1 and the gas outlet 2, and 16 and 17 are protective gas inlet 1 respectively.
And a valve for the gas vent 2. In FIG. 4, the protective gas inlet 1 and the protective gas inlet valve 16 guarded by the porous material 18 and the gas vent 2 and the gas outlet valve 17 guarded by the porous material 18 are arranged in parallel. Indicates that it is installed.

【0024】このような装置において、射出スリーブ9
内の素材12−1を高周波加熱コイル10により加熱するに
あたっては、ガス抜きバルブ17を閉じ、保護ガス導入口
バルブ16を開いて保護ガスを装置内に供給し、射出の際
には、保護ガス導入口バルブ16を閉じ、ガス抜き口バル
ブ17を開き射出の際のガス抜きを行う。そして、射出さ
れた過剰の材料12−2は、ばり溜り15でとどまるか一部
飛散したとしても多孔質材18で防御され、保護ガス導入
口1及びガス抜き口2に侵入することはない。
In such a device, the injection sleeve 9
When heating the material 12-1 in the inside by the high frequency heating coil 10, the degassing valve 17 is closed, the protective gas inlet valve 16 is opened to supply the protective gas into the apparatus, and the protective gas is injected at the time of injection. The inlet port valve 16 is closed and the gas vent port valve 17 is opened to vent gas at the time of injection. The injected excess material 12-2 is protected by the porous material 18 even if it stays in the flash pool 15 or is partially scattered, and does not enter the protective gas inlet 1 and the gas vent 2.

【0025】図5は、比較例に用いた装置の説明図であ
る。この図において、保護ガス導入口1は射出スリーブ
9の素材挿入口11に設け、ガス抜き口2は金型のキャビ
ティ3から通路を経て直接設けている。なお上記以外は
図1と同様である。
FIG. 5 is an explanatory view of the apparatus used in the comparative example. In this figure, the protective gas introduction port 1 is provided in the material insertion port 11 of the injection sleeve 9, and the gas vent port 2 is provided directly from the cavity 3 of the mold through the passage. Other than the above, it is the same as FIG.

【0026】実施例2 直径:58mm、長さ:50mmの寸法のFe −3.2 wt%C−0.
5 wt%Si −0.5 wt%Mnの鉄合金を素材として用い、実
施例1と同様に、この発明の適合例として図1(及び図
2〜4)に示すこの発明に適合する装置を用いて加熱後
急冷又は射出した場合と、比較例として図5に示す装置
を用いて加熱後急冷した場合についてそれぞれ実施例1
と同様の調査を行った。
Example 2 Fe-3.2 wt% C-0. With dimensions of diameter: 58 mm, length: 50 mm.
Using an iron alloy of 5 wt% Si −0.5 wt% Mn as a raw material, and using the apparatus according to the present invention shown in FIG. 1 (and FIGS. 2 to 4) as a conforming example of the present invention, as in Example 1. Example 1 was carried out in the case of quenching or injecting after heating and in the case of quenching after heating using the apparatus shown in FIG. 5 as a comparative example.
The same survey was conducted.

【0027】なお、保護ガスには、H2 :40%、CO:
20%、CH4 :1%、N2 :39%の組成になる吸熱性ガ
スを用い、加熱及び射出の際の吸熱性ガスの装置内への
供給条件は実施例1と同様とした。
The protective gas is H 2 : 40%, CO:
An endothermic gas having a composition of 20%, CH 4 : 1% and N 2 : 39% was used, and the conditions for supplying the endothermic gas into the apparatus during heating and injection were the same as in Example 1.

【0028】加熱条件及び調査結果を表2に示す。Table 2 shows the heating conditions and the investigation results.

【表2】 [Table 2]

【0029】これらの調査結果も実施例1と同様で、試
料 No.4の比較例には酸化が見られるのに対し、この発
明の適合例試料 No.3には全面にわたって酸化は見られ
なく、かつ、保護ガス導入口及びガス抜き口への材料の
浸入は全く見られなかった。
The results of these investigations are also the same as in Example 1, and oxidation is observed in the comparative example of sample No. 4, whereas no oxidation is observed over the entire surface in sample No. 3 of the conforming example of the present invention. In addition, no infiltration of the material into the protective gas inlet and the gas outlet was observed.

【0030】[0030]

【発明の効果】この発明は、金属又は金属基複合材素材
を、射出スリーブ内の保護ガス雰囲気のもとで半融状態
に加熱したのち金型内へ射出するダイカスト法におい
て、素材を加熱するにあたり、ガス抜き口と交替作動可
能に並設した保護ガス導入口より金型のキャビティを経
てゲートから射出スリーブに至る径路で保護ガスを供給
すること、さらにこのために適した金型を用いることに
より、酸化物の少ない製品が得られるばかりでなく、金
型の繰返し使用が可能であり、この発明によれば、品質
及び経済性に優れる高融点材料のダイカスト製品を得る
ことができる。
Industrial Applicability According to the present invention, a metal or metal-based composite material material is heated in a die-casting method in which a material is heated in a semi-molten state under a protective gas atmosphere in an injection sleeve and then injected into a mold. At this time, the protective gas should be supplied from the protective gas inlet, which is installed in parallel with the gas vent, so that it can pass through the cavity of the mold from the gate to the injection sleeve, and that a mold suitable for this purpose should be used. As a result, not only a product with a small amount of oxides can be obtained, but also the mold can be repeatedly used. According to the present invention, a die-cast product of a high melting point material having excellent quality and economy can be obtained.

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

【図1】この発明に適合する装置の説明図(射出前)で
ある。
FIG. 1 is an explanatory view (before injection) of an apparatus suitable for the present invention.

【図2】この発明に適合する装置の説明図(射出後)で
ある。
FIG. 2 is an explanatory view (after injection) of an apparatus suitable for the present invention.

【図3】図1におけるA部詳細説明図である。FIG. 3 is a detailed explanatory diagram of a portion A in FIG.

【図4】図3におけるB−B矢視図である。FIG. 4 is a view as seen from the arrow BB in FIG.

【図5】比較例に用いた装置の説明図である。FIG. 5 is an explanatory diagram of an apparatus used in a comparative example.

【符号の説明】[Explanation of symbols]

1 保護ガス導入口 2 ガス抜き口 3 金型のキャビティ 4 ゲート 5 可動盤 6 固定盤 7 可動金型 8 固定金型 9 射出スリーブ 10 高周波加熱コイル 11 素材挿入口 12-1 素材 12-2 材料 13 射出プランジャチップ 14 射出プランジャロッド 15 ばり溜り 16 保護ガス導入口バルブ 17 ガス抜き口バルブ 18 多孔質材 1 Protective gas inlet 2 Gas vent 3 Mold cavity 4 Gate 5 Movable plate 6 Fixed plate 7 Movable mold 8 Fixed mold 9 Injection sleeve 10 High frequency heating coil 11 Material insertion port 12-1 Material 12-2 Material 13 Injection plunger tip 14 Injection plunger rod 15 Burr pool 16 Protective gas inlet valve 17 Gas outlet valve 18 Porous material

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 金属又は金属基複合材の塊状素材を、射
出スリーブ内の保護ガス雰囲気のもとで部分的な融解下
に固形状に維持され得る半融状態に加熱したのち、射出
プランジャにより金型内へ射出する半融金属のダイカス
ト法において、 素材を加熱するにあたり、ガス抜き口と交替作動可能に
並設した保護ガス導入口より、金型のキャビティを経て
ゲートから射出スリーブに至る径路にて保護ガスを供給
して金型のキャビティ及び射出スリーブ内のパージ置換
を行うことを特徴とする半融金属のダイカスト法。
1. A bulk material of a metal or a metal-based composite material is heated to a semi-molten state that can be maintained in a solid state under partial melting under a protective gas atmosphere in an injection sleeve, and then by an injection plunger. In the die-casting method of semi-molten metal that is injected into the mold, when heating the material, the path from the gate to the injection sleeve through the cavity of the mold through the protective gas inlet that is installed in parallel with the gas vent A die casting method for a semi-molten metal, characterized in that a protective gas is supplied to purge the cavity of the mold and the injection sleeve.
【請求項2】 開閉可能な保護ガス導入口を開閉可能な
ガス抜き口と並列に、金型のキャビティとの連通下に配
設して成る半融金属のダイカスト金型。
2. A semi-molten metal die casting mold in which an openable and closable protective gas inlet is arranged in parallel with an openable and closable gas vent and in communication with a mold cavity.
【請求項3】 金型のキャビティと連通する保護ガス導
入口及びガス抜き口の通路に、ばり溜り又はばり溜り及
び多孔質材を設けて成る請求項2に記載の半融金属のダ
イカスト金型。
3. A semi-molten metal die casting mold according to claim 2, wherein a burr pool or a burr pool and a porous material are provided in the passages of the protective gas introducing port and the gas vent port communicating with the cavity of the mold. .
JP27174192A 1992-10-09 1992-10-09 Die casting method for half-melting metal and die therefor Pending JPH06114523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27174192A JPH06114523A (en) 1992-10-09 1992-10-09 Die casting method for half-melting metal and die therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27174192A JPH06114523A (en) 1992-10-09 1992-10-09 Die casting method for half-melting metal and die therefor

Publications (1)

Publication Number Publication Date
JPH06114523A true JPH06114523A (en) 1994-04-26

Family

ID=17504187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27174192A Pending JPH06114523A (en) 1992-10-09 1992-10-09 Die casting method for half-melting metal and die therefor

Country Status (1)

Country Link
JP (1) JPH06114523A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2005279699B2 (en) * 2004-09-01 2011-03-24 Commonwealth Scientific And Industrial Research Organisation Alloy casting apparatus
JP2011255408A (en) * 2010-06-10 2011-12-22 Die Engineering:Kk Method of high-quality die casting
JP2012254464A (en) * 2011-06-08 2012-12-27 Honda Motor Co Ltd Die device for non-porous die cast
JP2014507287A (en) * 2011-03-11 2014-03-27 新東工業株式会社 Die casting mold
CN103722147A (en) * 2012-10-15 2014-04-16 苹果公司 Inline melt control via RF power
CN104275458A (en) * 2013-07-11 2015-01-14 科卢斯博知识产权有限公司 Unevenly spaced induction coil for molten alloy containment
US9427803B2 (en) 2004-09-01 2016-08-30 Commonwealth Scientific And Industrial Research Organisation Alloy casting apparatus
US9873151B2 (en) 2014-09-26 2018-01-23 Crucible Intellectual Property, Llc Horizontal skull melt shot sleeve

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9427803B2 (en) 2004-09-01 2016-08-30 Commonwealth Scientific And Industrial Research Organisation Alloy casting apparatus
AU2005279699B2 (en) * 2004-09-01 2011-03-24 Commonwealth Scientific And Industrial Research Organisation Alloy casting apparatus
JP2011255408A (en) * 2010-06-10 2011-12-22 Die Engineering:Kk Method of high-quality die casting
JP2014507287A (en) * 2011-03-11 2014-03-27 新東工業株式会社 Die casting mold
JP2012254464A (en) * 2011-06-08 2012-12-27 Honda Motor Co Ltd Die device for non-porous die cast
CN106513623A (en) * 2012-10-15 2017-03-22 苹果公司 Inline melt control via RF power
JP2016095127A (en) * 2012-10-15 2016-05-26 アップル インコーポレイテッド Inline melt control via rf power
JP2014098538A (en) * 2012-10-15 2014-05-29 Apple Inc Inline melt control via rf power
CN103722147A (en) * 2012-10-15 2014-04-16 苹果公司 Inline melt control via RF power
US9810482B2 (en) 2012-10-15 2017-11-07 Apple Inc. Inline melt control via RF power
US10197335B2 (en) 2012-10-15 2019-02-05 Apple Inc. Inline melt control via RF power
CN104275458A (en) * 2013-07-11 2015-01-14 科卢斯博知识产权有限公司 Unevenly spaced induction coil for molten alloy containment
CN104275458B (en) * 2013-07-11 2018-04-20 科卢斯博知识产权有限公司 The induction coil being not evenly spaced for molten alloy constraint
US9873151B2 (en) 2014-09-26 2018-01-23 Crucible Intellectual Property, Llc Horizontal skull melt shot sleeve

Similar Documents

Publication Publication Date Title
US3014255A (en) Method of operating vacuum induction furnace
JPH11156517A (en) Die casting equipment and method in advanced decompression condition
SE407164B (en) KIT AND DEVICE FOR MANUFACTURE OF MOLDING PARTS
JPH06114523A (en) Die casting method for half-melting metal and die therefor
JP2009512558A (en) Die casting method and die casting apparatus
CN111565869A (en) Method and device for producing metal ingots
JP4366015B2 (en) Refractory for casting rare earth alloy, method for producing the same, and method for casting rare earth alloy
JPS6012271A (en) Casting device
JPS61259855A (en) Gas venting device in casting
JP3972849B2 (en) Semi-molten metal injection apparatus and method
US2865068A (en) Apparatus for casting metal
JP4518676B2 (en) Method for producing magnesium alloy member
JP2000225455A (en) Method and apparatus for casting cast iron
EP1166924A1 (en) Holding furnace particularly for die-casting apparatus
US4658881A (en) Casting apparatus for providing controlled ambient during production casting
JP2001246454A (en) Method for manufacturing noble metal article and its manufacturing apparatus
US2787817A (en) Automatic feed casting apparatus
JPS60148655A (en) Cold chamber die casting machine
JPS63174764A (en) Method for preventing molten steel oxidation at casting start in continuous casting
JP2975182B2 (en) Material for die casting of iron alloy containing carbon, method of preparing the same, and method of using the same
JPH09155535A (en) Hole force opening method for molten metal outflow hole and hole force opening device therefor
JPH10296406A (en) Stopper rod for continuous casting
KR100784420B1 (en) Solidification preventing method for ladle upper nozzle
JP6979454B2 (en) Manufacturing method for nozzles, casting equipment and castings
US973483A (en) Art of and apparatus for casting fluid metal.