JPS5812101B2 - casting mold - Google Patents
casting moldInfo
- Publication number
- JPS5812101B2 JPS5812101B2 JP54139548A JP13954879A JPS5812101B2 JP S5812101 B2 JPS5812101 B2 JP S5812101B2 JP 54139548 A JP54139548 A JP 54139548A JP 13954879 A JP13954879 A JP 13954879A JP S5812101 B2 JPS5812101 B2 JP S5812101B2
- Authority
- JP
- Japan
- Prior art keywords
- gas venting
- molten metal
- mold
- groove
- trapezoidal groove
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/14—Machines with evacuated die cavity
- B22D17/145—Venting means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】 本願は主としてダイカストに用いる鋳造金型に関する。[Detailed description of the invention] The present application mainly relates to a casting mold used for die casting.
従来より鋳造作業に於て溶湯を圧入するとき、金型内の
空気を排出するガス抜きをキャビティに連通して設ける
ことは公知であるが、在来のガス抜きは金型合わせ面に
０．１５％程度の厚さの隙間を設けてガス抜きを行なっ
ている。Conventionally, when press-fitting molten metal in casting operations, it has been known to provide a gas vent that communicates with the cavity to exhaust the air inside the mold. A gap of approximately 15% thickness is provided to vent gas.
これ以上に大きく出来ない理由は、溶湯が金型面に接触
すると、接触表面は瞬時に半凝固の状態となり、粘性が
増大するので即座に層流となり、金型接触面は凝固して
薄い凝固膜を構成し、又、その中を溶湯の先端中心部は
高速で進行するため、圧力が低下して金型と凝固膜層の
接触が半接触になり、熱伝導が能率よく出来ないため、
中心部の溶湯は保温されたまゝ前進して金型より噴出し
てしまうために、隙間を厚くすることが出来なかった。The reason why it cannot be made larger than this is that when the molten metal comes into contact with the mold surface, the contact surface instantly becomes semi-solid, and as the viscosity increases, it immediately becomes a laminar flow, and the mold contact surface solidifies into a thin solid state. Because the center of the tip of the molten metal moves at high speed through the membrane, the pressure decreases and the contact between the mold and the solidified membrane layer becomes semi-contact, making it difficult to conduct heat efficiently.
Since the molten metal in the center remains warm and advances and ejects from the mold, it was not possible to make the gap thicker.
本発明は斯かる問題点を解決し、溶湯の流速を全面的に
横−直線状態に制御し、凝固むらのない状態にして、溶
湯に急激な冷却による不安定な凝固膜層を作らせずに、
溶湯を外側表面からの徐冷に成功し、溶湯の冷却凝固部
を長くしいずれの部分も組織的に安定した安全確実なガ
ス抜き溶湯、凝固を実施出来る鋳造金型を提供する目的
で発明されたものである。The present invention solves these problems by controlling the flow rate of the molten metal in a transverse-linear state throughout the entire surface, making it uniform in solidification, and preventing the formation of an unstable solidified film layer due to rapid cooling of the molten metal. To,
It was invented for the purpose of providing a casting mold that can successfully slowly cool the molten metal from the outer surface, lengthen the cooling and solidifying part of the molten metal, and perform safe and secure degassing of the molten metal and solidification with structural stability in all parts. It is something that
以下実施の一例を示す図面に就いて説明すると、１は固
定金型であり、２はこれと対向して設けた可動金型であ
る。Referring to the drawings showing an example of the embodiment, 1 is a fixed mold, and 2 is a movable mold provided opposite to this.
３は固定金型１及び可動金型２内に穿設したキャビティ
である。3 is a cavity bored in the fixed mold 1 and the movable mold 2.
４は固定金型１及び可動金型２の合わせ面に隙間を設け
て構成したガス抜き部で、内方側一端はキャビティ３と
連通する。Reference numeral 4 denotes a gas venting section formed by providing a gap between the mating surfaces of the fixed mold 1 and the movable mold 2, and one end on the inner side communicates with the cavity 3.
５，５・・・・・・は固定金型１と可動金型２に各々合
わせ面側を底辺側とし、断面はぼ台形状にガス抜き方向
と直角方向に、左右互い違いにジグザグ位置に、平行に
穿設した台形溝形ガス抜き部である。5, 5... are the fixed mold 1 and the movable mold 2, respectively, with the mating surface side being the bottom side, the cross section being trapezoidal, in the direction perpendicular to the gas venting direction, in zigzag positions alternately on the left and right, This is a trapezoidal groove-shaped gas vent section drilled in parallel.
６，６・・・・・・は台形溝形ガス抜き部５，５の底辺
側のガス抜き方向の両端に、両金型の合わせ面と平行に
断面り形に隙間を設けて連通せしめた連通隙間でＬ型に
曲折した隙間６の曲折先端側を前記台形溝形ガス抜き部
５に連通する。6, 6... are connected to each other by providing a gap in the shape of a cross section parallel to the mating surfaces of both molds at both ends of the trapezoidal groove-shaped gas venting parts 5, 5 in the gas venting direction on the bottom side. The bent end side of the gap 6 bent into an L-shape in the communication gap is communicated with the trapezoidal groove-shaped gas venting part 5.
７は台形溝形ガス抜き部６の出口側に、両金型合わせ面
に隙間を設けて構成した出口側ガス抜き部である。Reference numeral 7 denotes an outlet-side gas venting section formed on the exit side of the trapezoidal groove-shaped gas venting section 6 by providing a gap between the mating surfaces of both molds.
８．８・・・・・・は出口側ガス抜き部７の外側位置で
、且つ両金型の合わせ面の内面にガス抜き方向とは直角
な横方向に、断面ν形状に連続して穿設した窪曲面溝で
ある。8.8... is a position outside the outlet side gas venting part 7, and on the inner surface of the mating surface of both molds, a continuous hole with a cross section ν shape is made in the lateral direction perpendicular to the gas venting direction. This is a groove with a concave curved surface.
９，９・・・・・・は窪曲面溝８，８・・・の連結境界
辺である。9, 9... are connecting boundary sides of the concave curved grooves 8, 8....
１０は固定金型１内の湯道１１と連通せしめた鋳込みシ
リンダーである。10 is a casting cylinder communicated with a runner 11 in the fixed mold 1.
１２は鋳込みシリンダーの側壁に穿設した注入口である
。Reference numeral 12 denotes an injection port bored in the side wall of the casting cylinder.
１３は鋳込みシリンダーのピストンである。13 is a piston of a cast cylinder.
斯かる構成より成る故に、金型内に溶湯を湯道１１を通
してキャビティ３内に圧入するさ、キャビティ３内に充
満した溶湯は、ガス抜き部４に流出し、更にガス抜き部
４と連通する一番目の台形溝形ガス抜き部５内に底辺側
より一側辺に沿って流入し、溝に沿って瞬間的に溶湯は
横方向に展開し、一番目の台形溝形ガス抜き部５内が溶
湯で全面的に充満して横−直線状態に溶湯は制御され、
次いで一斉に他の一側辺側の底辺側に位置する連通隙間
６を通って次の台形溝形ガス抜き部５内に流入し、台形
溝形ガス抜き部５内に溶湯が全体的に横方向に前記と同
様に充満して、更に横−直線状態に溶湯を制御すること
を繰返して、横−直線状態の制御精度を上げ、又、一斉
にガス抜き方向に飛び出し流れていくので、金型の内面
全面的に均一した速度、圧力を絶えず台形溝形ガス抜き
部５で調整しながら、溶湯は出口側ガス抜き部７に到達
するのでガス抜き幅を充分に広くすることが可能となり
到達した溶湯は横−直線状態に全く同一条件で流入する
ために、徐冷条件が全面的に同一となり、組織的に安定
したものが得られる。Because of this configuration, when the molten metal is press-fitted into the cavity 3 through the runner 11 in the mold, the molten metal filling the cavity 3 flows out to the gas venting part 4 and is further communicated with the gas venting part 4. The molten metal flows into the first trapezoidal groove-shaped gas venting part 5 from the bottom side along one side, and instantaneously expands laterally along the groove, and flows into the first trapezoidal groove-shaped gas venting part 5. is completely filled with molten metal, and the molten metal is controlled in a horizontal-linear state.
Then, the molten metal flows all at once into the next trapezoidal groove-shaped gas venting part 5 through the communication gap 6 located on the bottom side of the other side, and the molten metal flows horizontally in the trapezoidal groove-shaped gas venting part 5 as a whole. By repeating the process of filling the molten metal in the same manner as above and controlling the molten metal in a horizontal-linear state, the accuracy of controlling the horizontal-linear state is improved. The molten metal reaches the outlet-side gas venting part 7 while constantly adjusting the speed and pressure to be uniform over the entire inner surface of the mold using the trapezoidal groove-shaped gas venting part 5, making it possible to make the venting width sufficiently wide. Since the molten metal flows horizontally and linearly under exactly the same conditions, the slow cooling conditions are completely the same and a structurally stable product can be obtained.
出口側ガス抜き部７に全面的に同−速さ、同一圧力で、
同時に到達した溶湯は、更に左右の小さな窪曲面溝８，
８・・・・・・（本発明の実験では溝巾％、深さ０．０
４％で好結果を得た）内に勢いよく噴入するが、慣性溶
湯は窪曲面溝８内に流れ込む間がなく、連結境界辺９，
９・・・・・・のピッチ間隔（溝巾に相当する）の狭い
こととも相俟って、殆んどの溶湯は連結境界辺９，９に
沿って窪部には接触しないで直進し、連結境界辺９，９
間を高速で進行するので、金型と接触部分が極端に少な
くなり、熱交換が少なくなるので、表面の溶湯温度のみ
が急激に低下しないで進行することが可能となり、半凝
固してから層流となるため助走距離が長くなり、内部（
中心部）迄の熱交換時間が長くなり、層流の発生前に凝
固状態が確保出来、前記の台形溝形ガス抜き部による平
均した送湯効果とも相俟って一部の凝固部が破れるよう
な不測の事態が発生しなくなり、かなり広い巾のガス部
全面にわたって均一な安全確実な溶湯の凝固が保障出来
、簡単な構造でキャビティ内のガス抜きを充分に行なえ
る発明である。At the same speed and pressure all over the outlet side gas venting part 7,
The molten metal that arrived at the same time further left and right small concave curved grooves 8,
8... (In the experiment of the present invention, groove width %, depth 0.0
Good results were obtained with 4%), but the inertial molten metal had no time to flow into the concave curved groove 8, and the connecting boundary side 9,
Coupled with the narrow pitch interval (corresponding to the groove width) of 9..., most of the molten metal travels straight along the connecting boundary sides 9, 9 without contacting the depressions, Connected boundary side 9, 9
Since the molten metal progresses at high speed between the layers, the contact area with the mold is extremely small, and heat exchange is reduced. This makes it possible for the molten metal to proceed without a sudden drop in the temperature of the molten metal at the surface. Because of the flow, the run-up distance becomes longer and the internal (
The heat exchange time up to the central part becomes longer, and a solidified state can be secured before the generation of laminar flow, and this, combined with the average hot water feeding effect of the trapezoidal groove-shaped gas vent part mentioned above, may cause some solidified parts to break. This invention prevents such unexpected situations from occurring, ensures uniform and safe solidification of the molten metal over the entire gas section over a fairly wide width, and allows sufficient gas venting within the cavity with a simple structure.
第１図は本発明の実施の一例を示す縦断面図、第２図は
主要部の一部を拡大した縦断面図、第３図は本発明を真
空ダイカスト法に使用した場合を示す縦断面図、第４図
は第３図Ａ−Ａ線上の左側面図である。
１・・・・・・固定金型、２・・・・・・可動金型、３
・・・・・・キャビティ、４・・・・・・ガス抜き部、
５・・・・・・台形溝形ガス抜き部、６・・・・・・連
通隙間、７・・・・・・出口側ガス抜き部、８・・・・
・・窪曲面溝、９・・・・・・連結境界辺、１０・・・
鋳込みシリンダー、１１・・・・・・湯道、１２・・・
・・・注入口、１３・・・・・・ピストン。Fig. 1 is a longitudinal sectional view showing an example of the implementation of the present invention, Fig. 2 is a longitudinal sectional view enlarging a part of the main part, and Fig. 3 is a longitudinal sectional view showing the case where the invention is used in a vacuum die casting method. 4 is a left side view taken along line A-A in FIG. 3. 1...Fixed mold, 2...Movable mold, 3
...Cavity, 4...Gas venting part,
5... Trapezoidal groove-shaped gas venting part, 6... Communication gap, 7... Exit side gas venting part, 8...
... Concave curved surface groove, 9 ... Connection boundary side, 10 ...
Casting cylinder, 11... Runway, 12...
...Inlet, 13... Piston.
Claims (1)
し、断面はぼ台形状にガス抜き方向と直角方向に、左右
互い違いになるようにジグザグ位置に台形溝形ガス抜き
部５，５・・・・・・を平行に穿設し各台形溝形ガス抜
き部５の底辺側の両端に両金型の合わせ面と平行に断面
り形に隙間６を設け、Ｌ型に曲折した隙間６の曲折先端
側を前記台形溝形ガス抜き部５に連通し、台形溝形ガス
抜き部５の出口側の両金型内面に、ガス抜き方向とは直
角な横方向に断面−形状の窪曲面溝８を、各窪曲面溝８
の側辺に連結境界辺９，９を構成して、連続的に窪曲面
溝８，８・・・・・・を数多く穿設し、ガス抜き部を広
巾としたことを特徴とする鋳造金型。1 On the inner surface of the gas venting part of the mold, with the mating surface side as the bottom side, the trapezoidal groove-shaped gas venting parts 5 have a trapezoidal cross section and are arranged in a zigzag position in a direction perpendicular to the gas venting direction, alternating left and right. 5... were bored in parallel, and gaps 6 were provided at both ends of the bottom side of each trapezoidal groove-shaped gas venting part 5 in a cross-sectional shape parallel to the mating surfaces of both molds, and bent into an L shape. The bent end side of the gap 6 is connected to the trapezoidal groove-shaped gas venting part 5, and a cross-sectional shape of The concave curved groove 8 is connected to each concave curved groove 8.
A cast metal characterized by forming connecting boundary sides 9, 9 on the sides thereof, continuously drilling a large number of concave grooves 8, 8, and making the degassing part wide. Type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54139548A JPS5812101B2 (en) | 1979-10-25 | 1979-10-25 | casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54139548A JPS5812101B2 (en) | 1979-10-25 | 1979-10-25 | casting mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5662669A JPS5662669A (en) | 1981-05-28 |
| JPS5812101B2 true JPS5812101B2 (en) | 1983-03-07 |
Family
ID=15247819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54139548A Expired JPS5812101B2 (en) | 1979-10-25 | 1979-10-25 | casting mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5812101B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6360060A (en) * | 1986-08-29 | 1988-03-16 | Takeshi Arai | Venting device for die |
| CN109128081A (en) * | 2018-08-22 | 2019-01-04 | 苏州广型模具有限公司 | A kind of vacuumizing and exhausting buffer structure |
| EP4015102A1 (en) * | 2020-12-16 | 2022-06-22 | voestalpine Edelstahl Deutschland GmbH | Venting device for a casting mould for casting metallic components |
-
1979
- 1979-10-25 JP JP54139548A patent/JPS5812101B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5662669A (en) | 1981-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4068723B2 (en) | Metal strip continuous casting equipment | |
| US3502135A (en) | Continuous casting apparatus having suction means between mold and cooling means | |
| US3595302A (en) | Cooling structure for continuous-casting mold | |
| JPS5812101B2 (en) | casting mold | |
| US3085303A (en) | Method and means for continuous casting employing compartmented molds | |
| FI71245B (en) | METALL FORM | |
| CA1188479A (en) | Continuous casting mold for beam blanks | |
| BR102017015433A2 (en) | SYSTEM FOR PRODUCTION OF AN IRON COMPONENT BY CONTINUOUS FOUNDRY | |
| JPH0570537B2 (en) | ||
| JPS62142060A (en) | Water cooling type forming metal mold | |
| US3206809A (en) | Continuous casting of plates and strips from non-ferrous metals | |
| KR100469700B1 (en) | Die-cast Rotating Gate Mold Device | |
| JP2001286984A (en) | Metallic mold unit for casting | |
| US3886996A (en) | Device for producing internal cylindrical space in ingots | |
| JPS5979019A (en) | Cylinder block | |
| JP2789150B2 (en) | Semi-finished cylinder block, method of manufacturing cylinder block, and mold for semi-finished cylinder block | |
| SU1002086A1 (en) | Mould for metal continuous casting plants | |
| JP7387225B2 (en) | casting equipment | |
| US10967424B2 (en) | Casting mold and manufacturing method of cast part | |
| JPS5835789B2 (en) | Structure of gas venting part of casting mold | |
| US11052456B1 (en) | Casting mold and manufacturing method of cast part | |
| JP4624300B2 (en) | Mold cooling structure | |
| JP2808633B2 (en) | Continuous casting mold and control method thereof | |
| JP3766276B2 (en) | Die casting mold | |
| CA1217314A (en) | Tapered mold liner facing |