JPH0255639A - Manufacture of wax pattern in lost wax casting - Google Patents
Manufacture of wax pattern in lost wax castingInfo
- Publication number
- JPH0255639A JPH0255639A JP20717288A JP20717288A JPH0255639A JP H0255639 A JPH0255639 A JP H0255639A JP 20717288 A JP20717288 A JP 20717288A JP 20717288 A JP20717288 A JP 20717288A JP H0255639 A JPH0255639 A JP H0255639A
- Authority
- JP
- Japan
- Prior art keywords
- wax
- tree
- runner
- unit
- core material
- 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
- 238000005495 investment casting Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000011162 core material Substances 0.000 claims description 32
- 208000015943 Coeliac disease Diseases 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 description 11
- 238000004891 communication Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ロストワックス鋳造におけるワックス模型の
製造法に関し、詳しくは複数のワックス模型をツリー状
に形成したツリー型ワックス模型を得る方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a wax model in lost wax casting, and more particularly to a method for obtaining a tree-shaped wax model in which a plurality of wax models are formed into a tree shape.
［従来技術及びその課題］
従来、ロストワックス鋳造は、寸法精度が高い、鋳肌が
奇麗、複雑形状の成形が可能、といった数々の特徴を有
してはいるものの、その工程が自動化に適さないことか
ら製造コストが高いものであった。[Prior art and its problems] Conventionally, lost wax casting has many characteristics such as high dimensional accuracy, beautiful casting surface, and the ability to mold complex shapes, but the process is not suitable for automation. Therefore, the manufacturing cost was high.
そこで、複数のワックス模型を挿置した湯道型にワック
スを注入して湯道と複数のワックス模型とが一体化され
たツリー状のワックス模型を形成し、該ツリー状のワッ
クス模型を用いることによって一度に複数の成形品を得
ることのできる所謂多数個取りの成形が行なわれている
。しかし、湯道型の型分割の方向により湯道閘門へのワ
ックス模型の配鐙が規制され、多数個取りとは言うもの
のその数は制限されるものであった。Therefore, wax is injected into a runner mold in which a plurality of wax models are inserted to form a tree-shaped wax model in which the runner and the plurality of wax models are integrated, and the tree-shaped wax model is used. So-called multi-cavity molding is carried out in which a plurality of molded products can be obtained at once. However, the placement of the wax model on the runner lock gate was restricted depending on the direction in which the runner mold was divided, and the number of stirrups was limited, although it could be said that there were many pieces.
このような問題を解決するものとして、特公昭６３−９
９０１号公報開示の如く、複数のワックス模型を筒状組
立てユニットの周囲に装着したユニット模型を湯道部に
嵌め込むことにより、湯道部の周囲に複数のワックス模
型が放射状且つ複数段に配置されたツリーを組立てるも
のがある。As a solution to such problems, the special public
As disclosed in Publication No. 901, by fitting a unit model in which a plurality of wax models are attached around a cylindrical assembly unit into a runner, a plurality of wax models are arranged radially and in multiple stages around the runner. There is something to assemble the tree.
しかし乍ら、この方法に於ても個々のワックス模型を筒
状組立てユニットに装着する作業に昨間を要するもので
あった。However, even in this method, it takes a long time to mount the individual wax models on the cylindrical assembly unit.
［発明の目的］
本発明は、上記の如き事情に鑑み、多数個取りのツリー
型ワックス模型を容易に形成し得、生産性を向上させて
コスト低減を可能とするロストワックス鋳造におけるワ
ックス模型の製造法の提供、をその目的とする。[Object of the Invention] In view of the above-mentioned circumstances, the present invention provides a wax model in lost wax casting that can easily form a multi-cavity tree-shaped wax model, improve productivity, and reduce costs. Its purpose is to provide manufacturing methods.
［発明の構成］
このため、本発明に係るロストワックス鋳造におけるワ
ックス模型の製造法は、長手方向の少なくとも一端が開
放された複数条のスリットを有する筒状の芯材に、中位
ワックス模型の基端部をスリットの開放端側から順次挿
入して芯材内に連通空間を形成しつつ組み付けて芯材の
周囲に中位ワックス模型が放射状に複数装着されたツリ
ー状のワックス模型集合体を構成し、該ツリー状のワッ
クス模型集合体をワックス注入型に挿こして芯材内の連
通空間及びこれと連通ずる湯口キャビティ内に溶融した
ワックスを注入し、該注入ワックスが凝固した後芯材を
外して複数の単位ワックス模型及び湯口が一体に形成さ
れたツリー型ワックス模型を得るものである。[Structure of the Invention] Therefore, in the method for manufacturing a wax model in lost wax casting according to the present invention, a medium-sized wax model is placed in a cylindrical core material having a plurality of slits with at least one longitudinal end open. The proximal ends are sequentially inserted from the open end side of the slit and assembled while forming a communication space within the core material to form a tree-like wax model assembly in which a plurality of medium-sized wax models are attached radially around the core material. The tree-shaped wax model assembly is inserted into a wax injection mold, and molten wax is injected into the communication space within the core material and into the sprue cavity that communicates with this, and after the injected wax solidifies, the core material is is removed to obtain a tree-shaped wax model in which a plurality of unit wax models and sprues are integrally formed.
これにより、湯口と連続する湯道の周囲に放射状に単位
ワックス模型が配置されたツリー型ワックス模型を容易
に得ることができ、生産性が向上するものである。As a result, a tree-shaped wax model in which unit wax models are arranged radially around a runner connected to a sprue can be easily obtained, and productivity is improved.
［発明の実施例］
以下、本発明の一実施例を、第１図〜第４図に示す末完
ｌＪＪの工程に従って順を追って説明する。[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described in order according to the process of completion IJJ shown in FIGS. 1 to 4.
まず、筒状の芯材である芯金１０に単位ワックス模型２
を装着する。First, a unit wax model 2 is placed on a core metal 10 which is a cylindrical core material.
Attach.
芯金１０は、第５図にその断面図を示す如く断面形状が
正方形で所定肉厚の筒状であり、その両端は開放されて
いると共に、各側面には一方端偏に開放されたスリット
ＩＯＡが長手方向に沿って形成されているものである。As shown in the cross-sectional view of FIG. 5, the core bar 10 has a square cross-sectional shape and a cylindrical shape with a predetermined wall thickness, both ends of which are open, and each side face has a slit that is open at one end. The IOA is formed along the longitudinal direction.
単位ワックス模ｙ！！！２は、湯道部２Ｂの両側に複ａ
（図では二個）の製品模型２Ａを連結して構成され、湯
道部２Ｂの先端には、所定肉厚の板状の嵌合部２Ｃが湯
道部２Ｂに対して直角に一体形成されている。Unit wax model! ! ! 2 has multiple a on both sides of the runner section 2B.
(Two in the figure) product models 2A are connected, and a plate-shaped fitting part 2C with a predetermined thickness is integrally formed at the tip of the runner part 2B at right angles to the runner part 2B. ing.
湯道部２Ｂは、前述の芯金１０のスリット１０Ａに嵌合
可能な幅となっており、又、嵌合部２Ｃは、湯道形成部
２Ｂをスリ７）ＩＯＡに嵌合させて芯金ｌＯ内の空間部
１０Ｂ内に当該嵌合部２Ｃを挿置した時、隣接するスリ
７）ＩＯＡを介して挿置された嵌合部２０同士が相互に
組合さって係止されると共に、中央に芯金１０の長子方
向に連通ずる連通空間部１０Ｂ′を形成する（第６図示
）ようになっている。The runner portion 2B has a width that allows it to fit into the slit 10A of the core metal 10 described above, and the fitting portion 2C has a width that allows the runner forming portion 2B to fit into the slot 7) IOA to fit into the core metal 10. When the fitting part 2C is inserted into the space 10B in the IO, the fitting parts 20 inserted through the adjacent slots 7) are combined and locked with each other, and the center A communication space 10B' that communicates in the longitudinal direction of the core metal 10 is formed (as shown in FIG. 6).
そして、芯金１０の夫々のスリｙ）ＩＯＡに、単位ワッ
クス模５２の湯道部２Ｂを順次挿入して組み付け、芯金
１０に４個の単位ワックス模型２が放射状且つそれが複
数段に装着された第２図示の如きツリー状のワックス模
型集合体５を構成する。Then, the runner parts 2B of the unit wax models 52 are sequentially inserted and assembled into each of the IOAs of the core bar 10, and the four unit wax models 2 are attached to the core bar 10 radially and in multiple stages. A tree-shaped wax model assembly 5 as shown in the second figure is constructed.
次に、このツリー状のワックス模型集合体５を、ワック
ス注入型２０内に挿こし、芯金１０の内部の嵌合部２Ｃ
に囲まれた連通空間部１０Ｂ′内に溶融ワックスを注入
する。（第３図矢印Ｘ）
ワックス注入型２０は、上下二分割の型であり、その内
部に前工程で構成されたツリー状のワックス模型集合体
５が位置決め挿置可能な空間部２０Ａを有すると共に、
芯金１０内の連通空間部１０Ｂ′と連通ずる湯口キャビ
ティ２０Ｂが形成されており、又、芯金１０内の連通空
間部１０Ｂ’が外部と連通ずるようになっているもので
ある。尚、湯口キャビティ２０Ｂ内には、後述する完成
されたツリー型ワックス模型１を後工程に於て保持する
為のフック２１が挿置され、同時に一体に接合連結され
るようになっている。Next, this tree-shaped wax model assembly 5 is inserted into the wax injection mold 20, and the fitting part 2C inside the core metal 10 is inserted.
Molten wax is injected into the communication space 10B' surrounded by the space 10B'. (Arrow X in Figure 3) The wax injection mold 20 is a mold that is divided into upper and lower parts, and has a space 20A in which the tree-shaped wax model assembly 5 constructed in the previous step can be positioned and inserted. ,
A sprue cavity 20B is formed which communicates with a communication space 10B' in the core metal 10, and the communication space 10B' in the core metal 10 communicates with the outside. Incidentally, a hook 21 is inserted into the sprue cavity 20B for holding the completed tree-shaped wax model 1, which will be described later, in a subsequent process, and is connected together at the same time.
そして、外部から連通空間部１０Ｂ’内及び湯口キャビ
ティ２０Ｂ内に溶融ワックスを注入充填し、該注入した
ワックスが凝固した後、ワックス注入型２０を開いて湯
口４．メイン湯道３．芯金１０、複数の単位ワックス模
型２．が一体となったツリー状のワックス模型集合体５
を取り出す。Then, molten wax is injected into the communication space 10B' and the sprue cavity 20B from the outside, and after the injected wax solidifies, the wax injection mold 20 is opened and the sprue 4. Main hot water path 3. A core metal 10, a plurality of unit wax models 2. Tree-shaped wax model assembly 5
Take out.
その後、芯金ｌＯの開口端側に露出するメイン湯道３の
端面に該芯１０の空間部１０Ｂに嵌合可能な断面形状を
有する湯道突出し治具３０を当接させてメイン湯道３を
移動不能とし、この状態から芯金１０をスリッ）ＩＯＡ
の開口端側とは反対側にスライドさせてツリー状ワック
ス模型集合体３から芯金１０を外し、湯口４とメイ湯道
３及び複数の単位ワックス模型２とが一体となったツリ
ー型ワックス模′！１１を得るものである。Thereafter, a runner protruding jig 30 having a cross-sectional shape that can be fitted into the space 10B of the core 10 is brought into contact with the end surface of the main runner 3 exposed on the open end side of the core 10, and the main runner 3 is made immovable and from this state the core metal 10 is removed
The core bar 10 is removed from the tree-shaped wax model assembly 3 by sliding it to the side opposite to the open end side of the tree-shaped wax model, in which the sprue 4, the May runner 3, and the plurality of unit wax models 2 are integrated. ′! 11.
尚、上記実施例では一つのスリットに一つの単位ワック
ス模型２を順次挿着して隣接するスリット１０Ａ間に挿
着された単位ワックス模型２の嵌合部２Ｃが組合さって
内部に連通空間部１０８′を形成しつつ係止されるよう
構成したが、第７図示の如く中央部に空間部２Ｄ′を形
成したポス２Ｄの周囲に、スリットｌＯＡ位置に対応さ
せて湯道２Ｂを形成すると共に、ｕ！湯道２Ｂに製品模
型２Ａを一体成形した単位ワックス模型２としても良い
。In the above embodiment, one unit wax model 2 is sequentially inserted into one slit, and the fitting portions 2C of the unit wax models 2 inserted between adjacent slits 10A are combined to form a communicating space inside. 108', but as shown in Fig. 7, a runner 2B is formed around the post 2D with a space 2D' formed in the center, corresponding to the position of the slit lOA. ,u! The unit wax model 2 may be formed by integrally molding the product model 2A on the runner 2B.
又、芯金ｌＯの断面形状は正方形でなければならないも
のではなく、製品形状等必要に応じて多角形乃至円形状
としても良いことは言う迄もない。Furthermore, it goes without saying that the cross-sectional shape of the core metal 1O does not have to be square, but may be polygonal or circular depending on the product shape or the like.
［発明の効果］
上記の如き、未発１１に係るロストワックス鋳造におけ
るワックス模型の製造法によれば、湯道の周囲に単位ワ
ックス模型を放射状且つ複数段に配置したツリー型ワッ
クス模型の形成が容易にできる。従って生産性が向上し
コスト低減が可能となる。又、自動化も可能となり、更
なるコストダウンを図ることができるものである。[Effects of the Invention] According to the method for manufacturing a wax model in lost wax casting according to No. 11 as described above, it is possible to form a tree-shaped wax model in which unit wax models are arranged radially and in multiple stages around a runner. It's easy to do. Therefore, productivity is improved and costs can be reduced. Moreover, automation is also possible, and further cost reductions can be achieved.
第１図〜第５図は本発明に係るロストワックス鋳造にお
けるワックス模型の製造法の工程を示す図であり、第１
図は芯材への単位ワックス模型の挿着の説明図、第２図
は組み上った状３（ツリー状のワックス模型集合体）の
斜視図、第３図は湯道型に装置した状態の平面図、第４
図は芯材を外す工程を示す説明図、第５図は芯材の横断
面図、第６図はツリー状ワックス模型集合体の横断面図
、第７図は中位ワックス模型の別の実施例の斜視図であ
る。
２０・・・ワックス注入型
２０Ｂ・・・湯口キャビティ
ト・・ツリー型ワックス模型
２・・・単位ワックス模型
２Ｃ・・・嵌合部
（０１位ワックス模型の基端部）
３・・・メイン湯道
４・・・湯口
５・・・ツリー状ワックス模型集合体
１０・・・芯金（芯材）
１０Ａ・・・スリット
１０Ｂ’・・・連通空間
第
図
Ａ
Ｂ
第
図
第
図
Ｂ
第
図Figures 1 to 5 are diagrams showing the steps of the wax model manufacturing method in lost wax casting according to the present invention.
The figure is an explanatory diagram of the insertion of the unit wax model into the core material, Figure 2 is a perspective view of the assembled shape 3 (tree-shaped wax model assembly), and Figure 3 is the state installed in a runner type. Plan view of 4th
The figure is an explanatory diagram showing the process of removing the core material, Figure 5 is a cross-sectional view of the core material, Figure 6 is a cross-sectional view of the tree-shaped wax model assembly, and Figure 7 is another implementation of the medium-sized wax model. FIG. 3 is a perspective view of an example. 20...Wax injection mold 20B...Gate cavity...Tree-shaped wax model 2...Unit wax model 2C...Fitting part (01 position base end of wax model) 3...Main hot water Path 4... Sprue 5... Tree-shaped wax model assembly 10... Core metal (core material) 10A... Slit 10B'... Communication space Diagram A B Diagram Diagram B Diagram
Claims (1)
トを有する筒状の芯材に、単位ワックス模型の基端部を
前記スリットの開放端側から順次挿入して前記芯材内に
連通空間を形成しつつ組み付けて前記芯材の周囲に前記
単位ワックス模型が放射状に複数装着されたツリー状の
ワックス模型集合体を構成し、該ツリー状のワックス模
型集合体をワックス注入型に挿置して前記芯材内の連通
空間及びこれと連通する湯口キャビティ内に溶融したワ
ックスを注入し、該注入ワックスが凝固した後芯材を外
して前記複数の単位ワックス模型及び湯口が一体に形成
されたツリー型ワックス模型を得ること、を特徴とする
ロストワックス鋳造におけるワックス模型の製造法。A communicating space is formed in the core material by sequentially inserting the base end portions of the unit wax models from the open end side of the slits into a cylindrical core material having a plurality of slits with at least one longitudinal end open. A tree-shaped wax model assembly is constructed in which a plurality of the unit wax models are attached radially around the core material, and the tree-shaped wax model assembly is inserted into a wax injection mold to form a tree-shaped wax model assembly. Molten wax is injected into a communicating space within the core material and a sprue cavity communicating therewith, and after the injected wax solidifies, the core material is removed to form a tree shape in which the plurality of unit wax models and sprues are integrally formed. A method for manufacturing a wax model in lost wax casting, characterized by obtaining a wax model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20717288A JPH0255639A (en) | 1988-08-19 | 1988-08-19 | Manufacture of wax pattern in lost wax casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20717288A JPH0255639A (en) | 1988-08-19 | 1988-08-19 | Manufacture of wax pattern in lost wax casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0255639A true JPH0255639A (en) | 1990-02-26 |
Family
ID=16535425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20717288A Pending JPH0255639A (en) | 1988-08-19 | 1988-08-19 | Manufacture of wax pattern in lost wax casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0255639A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091565A (en) * | 1985-10-02 | 1992-02-25 | Sandoz Ltd. | Poly-dicaboxylic acid anhydrides, their production and use |
| JP2006007325A (en) * | 2004-06-28 | 2006-01-12 | Howmet Corp | Extinctive pattern assembly and manufacturing method therefor |
| JP2016510695A (en) * | 2013-03-14 | 2016-04-11 | ヒッチナー マニュファクチャリング カンパニー インコーポレイテッドＨｉｔｃｈｉｎｅｒ Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｃｏ．，Ｉｎｃ． | Refractory mold and manufacturing method thereof |
| CN112589045A (en) * | 2020-11-17 | 2021-04-02 | 连云港源钰金属制品有限公司 | Preparation method of casting die |
| USRE49063E1 (en) | 2013-03-14 | 2022-05-10 | Hitchiner Manufacturing Co., Inc. | Radial pattern assembly |
| CN114769510A (en) * | 2022-03-30 | 2022-07-22 | 贺州市旭平首饰有限公司 | Lost wax casting method for jewelry |
-
1988
- 1988-08-19 JP JP20717288A patent/JPH0255639A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5091565A (en) * | 1985-10-02 | 1992-02-25 | Sandoz Ltd. | Poly-dicaboxylic acid anhydrides, their production and use |
| JP2006007325A (en) * | 2004-06-28 | 2006-01-12 | Howmet Corp | Extinctive pattern assembly and manufacturing method therefor |
| EP1616641A1 (en) * | 2004-06-28 | 2006-01-18 | Howmet Corporation | Fugitive pattern assembly and manufacturing method |
| US7270166B2 (en) | 2004-06-28 | 2007-09-18 | Howmet Corporation | Fugitive pattern assembly and method |
| US8678073B2 (en) | 2004-06-28 | 2014-03-25 | Howmet Corporation | Fugitive pattern assembly and method |
| US9498819B2 (en) | 2013-03-14 | 2016-11-22 | Hitchiner Manufacturing Co., Inc. | Refractory mold and method of making |
| JP2016510695A (en) * | 2013-03-14 | 2016-04-11 | ヒッチナー マニュファクチャリング カンパニー インコーポレイテッドＨｉｔｃｈｉｎｅｒ Ｍａｎｕｆａｃｔｕｒｉｎｇ Ｃｏ．，Ｉｎｃ． | Refractory mold and manufacturing method thereof |
| US9833833B2 (en) | 2013-03-14 | 2017-12-05 | Hitchiner Manufacturing Co., Inc. | Refractory mold and method of making |
| USRE48971E1 (en) | 2013-03-14 | 2022-03-15 | Hitchiner Manufacturing Co., Inc. | Refractory mold and method of making |
| USRE49063E1 (en) | 2013-03-14 | 2022-05-10 | Hitchiner Manufacturing Co., Inc. | Radial pattern assembly |
| CN112589045A (en) * | 2020-11-17 | 2021-04-02 | 连云港源钰金属制品有限公司 | Preparation method of casting die |
| CN114769510A (en) * | 2022-03-30 | 2022-07-22 | 贺州市旭平首饰有限公司 | Lost wax casting method for jewelry |
| CN114769510B (en) * | 2022-03-30 | 2024-01-09 | 贺州市旭平首饰有限公司 | Method for lost wax casting of jewelry |
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