JPS6391535A - Method and apparatus for detecting flow in mold in pressure casting - Google Patents
Method and apparatus for detecting flow in mold in pressure castingInfo
- Publication number
- JPS6391535A JPS6391535A JP23764686A JP23764686A JPS6391535A JP S6391535 A JPS6391535 A JP S6391535A JP 23764686 A JP23764686 A JP 23764686A JP 23764686 A JP23764686 A JP 23764686A JP S6391535 A JPS6391535 A JP S6391535A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- casting
- flow
- flow detection
- gate
- 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
Links
- 238000005266 casting Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000002184 metal Substances 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 239000003086 colorant Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 239000010419 fine particle Substances 0.000 claims 1
- 238000004512 die casting Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の属する技術分野］
本発明はダイカストマシン等の加圧鋳造における金型内
の溶湯の流動状態を検知する方法およびその装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a method and apparatus for detecting the flow state of molten metal in a mold in pressure casting of a die casting machine or the like.
［従来技術］
従来は金型内の溶湯流動を検知する方法は皆無であって
、鋳造後に製品の外形を目視により検知する程度であっ
た。このため試行錯誤により金型を修正したり、各種の
鋳造条件例えば射出速度とその射出ストロークに対する
変化パターン、或いは射出圧力とその射出ストロークに
対する変化パターン、ざらに或いはキャビティに溶湯が
充填される時点における増圧装置による高圧付加のタイ
ミング等を試行錯誤して繰り返えすのが実情である、こ
のような理由により良品を得るまでに多大の時間を必要
として生産性を低くしかつコストを高くしていた。[Prior Art] Conventionally, there has been no method for detecting the flow of molten metal within a mold, and the only way to do so is to visually detect the external shape of a product after casting. For this reason, it is necessary to modify the mold through trial and error, and to change various casting conditions such as the injection speed and its change pattern for the injection stroke, the injection pressure and its change pattern for the injection stroke, and the time when the molten metal is filled into the groove or cavity. The reality is that the timing of applying high pressure using a pressure booster must be determined repeatedly through trial and error.For this reason, it takes a lot of time to obtain a good product, lowering productivity and increasing costs. Ta.
［発明の目的］
本発明はこのような欠点を除去したものでその目的は、
金型内の溶湯の流動状態を検知することにより、金型方
案の短期決定ならびにダイカストマシン等の鋳造条件の
短期決定を可能にして、生産性を高めると共にコストを
低くした加圧鋳造における型内流動検知方法およびその
装置を提供することにある。[Object of the invention] The present invention eliminates such drawbacks, and its object is to:
By detecting the flow state of the molten metal in the mold, it is possible to make short-term decisions on mold plans and casting conditions for die-casting machines, etc., increasing productivity and reducing costs. An object of the present invention is to provide a flow detection method and device.
［発明の要点］
本発明の加圧鋳造における型内流動検知方法は、金型の
ゲートに面した小径の穴へ溶融温度が鋳造溶湯のそれよ
り低くかつ複数の色相を有する流動検知材を挿入し、こ
の流動検知材を射出プランジャの射出時にこれと同期し
てゲートに噴出させることにより、鋳造溶湯に流動検知
材を混入させ色の配列順序により流動方向を検知するよ
うにしたことを特徴にしている。[Summary of the Invention] The in-mold flow detection method in pressure casting of the present invention includes inserting a flow detection material having a melting temperature lower than that of the casting molten metal and having a plurality of hues into a small diameter hole facing the gate of the mold. However, this flow detection material is injected into the gate in synchronization with the injection of the injection plunger, so that the flow direction is detected by mixing the flow detection material into the casting molten metal and detecting the flow direction based on the arrangement order of the colors. ing.
［発明の実施例］
以下本発明の一実施例を示した第１図および第２図につ
いて説明する。第１図において、固定金型１１と移動金
型１２とによりキャビティ１３は形成され、キャビティ
１３への鋳造溶湯流入口であってゲート１４と呼ばれる
部分は鋳造溶湯の流れが層流的に安定していることが必
要である。固定金型１１に固着された射出スリーブ１５
は図において左方はゲート１４に接続され右方には射出
プランジャ１６が設けである。なお射出プランジャ１６
は右方の点線位置に待機しており、この位置から左方の
点線位置まで距＠Ｓｏをストロークして鋳造溶湯１７を
キャビティ１３に射出する。[Embodiment of the Invention] Hereinafter, a description will be given of FIGS. 1 and 2 showing an embodiment of the present invention. In FIG. 1, a cavity 13 is formed by a fixed mold 11 and a movable mold 12, and a part called a gate 14, which is an inlet for the casting molten metal into the cavity 13, has a stable laminar flow of the casting molten metal. It is necessary that the Injection sleeve 15 fixed to fixed mold 11
In the figure, the left side is connected to the gate 14, and the right side is provided with the injection plunger 16. In addition, the injection plunger 16
is waiting at the dotted line position on the right side, and injects the casting molten metal 17 into the cavity 13 by stroking the distance @So from this position to the dotted line position on the left side.
鋳造溶湯１７は射出スリーブ１５の右方下面に設けた給
湯管１９を通って不図示の電磁ポンプ等の給湯手段から
定量が給湯される。そして鋳造溶湯１７は射出プランジ
ャ１５に対する充填率が通常４０ないし６０％であって
射出プランジャ１５の上方に空間を残して給湯される。The casting molten metal 17 passes through a hot water supply pipe 19 provided on the lower right side of the injection sleeve 15 and is supplied in a fixed amount from a hot water supply means such as an electromagnetic pump (not shown). The casting molten metal 17 is normally supplied to the injection plunger 15 with a filling rate of 40 to 60%, leaving a space above the injection plunger 15.
固定金型１１のキャビティ１３の下方でゲート１４に面
した部分には貫通した小径の穴２０が加工されており、
穴２０内にはその先端を固定金型１１の面に一致した流
動検知材２１が挿入されている。２２は流動検知材２１
を加熱してこれを溶融状態にするための加熱手段であり
、２３は小径プランジャで図示の状態のときその一側を
流動検知材２１に接し、他側を射出プランジャ１６のロ
ッド２４に固着したブロック２５に接していることによ
り、射出プランジャ１６に同期して流動検知材２１をゲ
ート１４に押し出す、前記小径プランジャ２３の射出プ
ランジャ１６との同期は実施例の方法に限るものではな
く、いかなる手段であってもよい、また金型のゲートに
面した穴は固定金型に限定しない。A small diameter hole 20 is formed in the lower part of the fixed mold 11 facing the gate 14, and
A flow detection material 21 is inserted into the hole 20 with its tip aligned with the surface of the fixed mold 11. 22 is a flow detection material 21
23 is a small-diameter plunger whose one side is in contact with the flow detection material 21 in the state shown, and the other side is fixed to the rod 24 of the injection plunger 16. The synchronization of the small-diameter plunger 23 with the injection plunger 16, which pushes out the flow detection material 21 to the gate 14 in synchronization with the injection plunger 16 by being in contact with the block 25, is not limited to the method of the embodiment, but can be done by any means. Also, the hole facing the gate of the mold is not limited to a fixed mold.
流動検知材２１は第２図に示すように複数（図の例は４
個）の検知材３１ないし３４に区分され、各検知材３１
等の両端にはこれの融点より高いが、鋳造溶湯１７の鋳
造温度かそれに近い温度で溶融する金属箔のキャップ３
５が融壁としてプレス等により冠着されている。また各
検知材３１とキャップ３５とは穴２０に密着している。As shown in FIG. 2, there are a plurality of flow detection materials 21 (the example shown is four
) of detection materials 31 to 34, each detection material 31
At both ends of the metal foil caps 3, which melt at or near the casting temperature of the molten metal 17, which is higher than the melting point of the metal foil.
5 is attached as a melting wall using a press or the like. Further, each detection material 31 and cap 35 are in close contact with the hole 20.
それぞれの流体検知材３１等は、鋳造時容易に鋳造溶湯
１７に混合するため融点が鋳造溶湯１７より低い金属例
えばＳｎやｐｂ等をマトリックスとし、顔料としてセラ
ミックス等鋳造温度で安定している材料の微粉末を混合
した複合材料である。Each of the fluid detection materials 31 and the like has a matrix of a metal such as Sn or PB whose melting point is lower than that of the casting molten metal 17 so that it easily mixes with the casting molten metal 17 during casting, and a material such as ceramics that is stable at the casting temperature as a pigment. It is a composite material mixed with fine powder.
また色別の複合材料を作るためセラミックスは白色とし
テＺｒＯ２，５ｉ０２（ジルコン）又は３Ａ文２０３．
２Ｓ ｉ０２ （ムライト）等があり、黄色としては
２Ｍｇ０・５ｊ０２（フォルステライト）又はＴｉ０ｚ
（二酸化チタン）等があり、黒色としてはＳｉｃ
（炭化珪素）等があり、緑色としてはＣｒ２０３ （酸
化クロム）等がある。In addition, in order to make composite materials with different colors, the ceramic should be white.
2S i02 (mullite), etc., and yellow ones include 2Mg0・5j02 (forsterite) or Ti0z
(titanium dioxide), etc., and the black color is Sic
(silicon carbide), etc., and green ones include Cr203 (chromium oxide), etc.
次に前述した実施例の動作を説明する。流動検知材２１
は第２図において、例えば３１を白色とし３２を黄色と
し３３を黒色とし３４を緑色として構成したものを固定
金型の穴２０に挿入し、加熱手段２２によりこれを加熱
すれば、それぞれの流動検知材３１等は溶融するがこの
時点でキャッブ３５は溶融しないため分けられている。Next, the operation of the embodiment described above will be explained. Flow detection material 21
In FIG. 2, for example, if 31 is white, 32 is yellow, 33 is black, and 34 is green, it is inserted into the hole 20 of the fixed mold and heated by the heating means 22. Although the detection material 31 and the like are melted, the cap 35 is not melted at this point and is therefore separated.
また流動検知材２１の挿入と共に鋳造溶湯１７を給湯管
１９から射出スリーブ１５に給湯する。このとき射出プ
ランジャ１６は第１図において右方の点線位置にある。Further, at the same time as the flow detection material 21 is inserted, the casting molten metal 17 is supplied from the hot water supply pipe 19 to the injection sleeve 15. At this time, the injection plunger 16 is at the right dotted line position in FIG.
この位置から射出プランジャ１６を低速でストロークＳ
Ｉを前進させれば、第１図の実線位置になり鋳造溶湯１
７は射出スリーブ１５を充満し小径プランジャ２３はブ
ロック２５に接する。続いて射出プランジャ１６を高速
でストロークＳ２を前進させれば鋳造溶湯１７はキャビ
ティ１３に充填される。ここで流動検知材２１の全長を
ストロークＳ２に等しくしておけば、溶融した流動検知
材２１は射出プランジャ１６に同期してゲート１４に噴
出され、鋳造溶湯１７と混合してキャビティ１３内に流
入して流動し最後に凝固する。From this position, stroke S of the injection plunger 16 at low speed.
If I is moved forward, it will be at the solid line position in Figure 1, and the casting molten metal 1
7 fills the injection sleeve 15, and the small diameter plunger 23 contacts the block 25. Subsequently, when the injection plunger 16 is advanced at high speed through a stroke S2, the cavity 13 is filled with the casting molten metal 17. Here, if the total length of the flow detection material 21 is made equal to the stroke S2, the molten flow detection material 21 is injected into the gate 14 in synchronization with the injection plunger 16, mixes with the casting molten metal 17, and flows into the cavity 13. It flows and finally solidifies.
流動検知材２１はゲート１４内に噴出されるとキャップ
３５は、高温の鋳造溶湯１７に接して急速に溶融し鋳造
溶湯３７と混合して形を消失する。このとき流動検知材
２１は前述した色の配列順序になっており、この配列順
序でゲート１４内に噴出され鋳造溶湯１７に混合して金
型のキャビティ１３内を流動するため、色の配列で流れ
方向が判明される。また色の混合状態で流れの局所的な
状態が判定される。When the flow detection material 21 is injected into the gate 14, the cap 35 comes into contact with the high-temperature casting molten metal 17, rapidly melts, mixes with the casting molten metal 37, and loses its shape. At this time, the flow detection material 21 is arranged in the above-mentioned color arrangement order, and is ejected into the gate 14 in this arrangement order, mixes with the casting molten metal 17, and flows inside the mold cavity 13. Flow direction is determined. Also, the local state of the flow is determined based on the color mixture.
このようにして鋳造溶湯の型内流動の方向は色の配列順
序により判明され凝固の状態も判明可能である。またゲ
ート速度が過大な場合は流れが乱れゲート出口で鋳造溶
湯が飛散するため、流動検知材２１は色配列がなく混り
合った状態になり不良鋳造条件であることが容易に判明
される。In this way, the direction of flow of the casting molten metal in the mold can be determined by the color arrangement order, and the state of solidification can also be determined. Furthermore, if the gate speed is excessive, the flow is disturbed and the casting molten metal is scattered at the gate exit, so that the flow detection material 21 has no color arrangement and is in a mixed state, which easily indicates poor casting conditions.
［発明の効果］
本発明の加圧鋳造における型内流動検知方法およびその
装置は以上説明したように、複数の色からなる流動検知
材を金型のゲートに面した穴に挿入し、これを射出プラ
ンジャの前進に同期してゲートに噴出させるようにした
ため、鋳造溶湯の型内流動の方向は色の配列順序により
判明され凝固状態も判明可能になった。このため従来不
可能であった型内の流動状が容易に検知されることにな
り、金型方案の短期決定ならびに各種鋳造条件の短期決
定が可能になり、生産性を高めると共にコストを低くす
る利点がある。さらに実際のダイカストマシン等の鋳造
機械で実際の製品により行うのでその実用的効果は大き
いものである。[Effects of the Invention] As explained above, the method and device for detecting flow in a mold in pressure casting of the present invention insert flow detecting materials of a plurality of colors into the hole facing the gate of the mold, and Since the injection was made to flow into the gate in synchronization with the advancement of the injection plunger, the direction of flow of the molten metal in the mold could be determined by the order of the colors, and the solidification state could also be determined. As a result, the flow state inside the mold, which was previously impossible to detect, can be easily detected, making it possible to quickly determine mold plans and various casting conditions, increasing productivity and lowering costs. There are advantages. Furthermore, since the process is carried out using an actual product using an actual casting machine such as a die-casting machine, its practical effects are great.
図は本発明の一実施例を示し第１図は断面図、第２図は
流動検知材の断面図である。
１１・・・固定金型、１２・・・移動金型、１３・・・
キャビティ、１４・・・ゲート、１５・・・射出プラン
ジャ。
１６・・・射出プランジャ、１７・・・鋳造溶湯、２０
・・・穴、２１・・・流動検知材、３１ないし３４・・
・検知材。The drawings show one embodiment of the present invention; FIG. 1 is a sectional view, and FIG. 2 is a sectional view of a flow detection material. 11... Fixed mold, 12... Movable mold, 13...
Cavity, 14...gate, 15...injection plunger. 16... Injection plunger, 17... Casting molten metal, 20
...hole, 21...flow detection material, 31 to 34...
・Detection material.
Claims (1)
湯のそれより低くかつ複数の色相を有する流動検知材を
挿入し、この流動検知材を射出プランジャの射出時にこ
れと同期して前記ゲートに噴出させることにより、前記
鋳造溶湯に前記流動検知材を混入させ色の配列順序によ
り流動方向を検知するようにした加圧鋳造における型内
流動検知方法。 ２）金型のゲートに面した部分へ設けた小径の穴と、同
穴に挿入され鋳造温度より溶融温度の低い金属をマトリ
ックスとしこれに顔料としてセラミックスの微粒子を分
散した色相を有する複合材料とからなる複数の色相別複
合材料としかつ前記各色別複合材料の両端に前記鋳造溶
湯の溶融温度かそれに近い温度で溶融する金属箔のキャ
ップを冠着した流動検知材と、同流動検知材を射出プラ
ンジャに同期して前記ゲートに噴出させる小プランジャ
とからなる加圧鋳造における型内流動検知装置。[Claims] 1) A flow detection material having a melting temperature lower than that of the casting molten metal and having a plurality of hues is inserted into a small diameter hole facing the gate of the mold, and this flow detection material is injected by an injection plunger. A flow detection method in a mold in pressure casting, wherein the flow detection material is mixed into the casting molten metal by spouting it through the gate in synchronization with this, and the flow direction is detected based on the arrangement order of colors. 2) A composite material that has a small diameter hole provided in the part facing the gate of the mold, and a composite material inserted into the hole that has a hue made of a metal with a melting temperature lower than the casting temperature as a matrix and fine particles of ceramics dispersed therein as a pigment. A flow detection material comprising a plurality of composite materials classified by color, each having a cap made of metal foil that melts at or near the melting temperature of the casting molten metal at both ends, and injection of the flow detection material. An in-mold flow detection device for pressure casting, comprising a small plunger that causes ejection to the gate in synchronization with the plunger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23764686A JPS6391535A (en) | 1986-10-06 | 1986-10-06 | Method and apparatus for detecting flow in mold in pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23764686A JPS6391535A (en) | 1986-10-06 | 1986-10-06 | Method and apparatus for detecting flow in mold in pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6391535A true JPS6391535A (en) | 1988-04-22 |
Family
ID=17018405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23764686A Pending JPS6391535A (en) | 1986-10-06 | 1986-10-06 | Method and apparatus for detecting flow in mold in pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6391535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2368305A (en) * | 2000-10-24 | 2002-05-01 | Siemens Canada Ltd | A method for forming cores for lost core moulding processes |
-
1986
- 1986-10-06 JP JP23764686A patent/JPS6391535A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2368305A (en) * | 2000-10-24 | 2002-05-01 | Siemens Canada Ltd | A method for forming cores for lost core moulding processes |
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