JPH0412963B2 - - Google Patents

Info

Publication number
JPH0412963B2
JPH0412963B2 JP30921987A JP30921987A JPH0412963B2 JP H0412963 B2 JPH0412963 B2 JP H0412963B2 JP 30921987 A JP30921987 A JP 30921987A JP 30921987 A JP30921987 A JP 30921987A JP H0412963 B2 JPH0412963 B2 JP H0412963B2
Authority
JP
Japan
Prior art keywords
wax
casting
jewelry
ornament
inert gas
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
Application number
JP30921987A
Other languages
Japanese (ja)
Other versions
JPH01148203A (en
Inventor
Takeo Endo
Tetsuro Sugano
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.)
FUAIN TETSUKU SOMEYA KK
Original Assignee
FUAIN TETSUKU SOMEYA 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 FUAIN TETSUKU SOMEYA KK filed Critical FUAIN TETSUKU SOMEYA KK
Priority to JP30921987A priority Critical patent/JPH01148203A/en
Publication of JPH01148203A publication Critical patent/JPH01148203A/en
Publication of JPH0412963B2 publication Critical patent/JPH0412963B2/ja
Granted legal-status Critical Current

Links

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は装飾品の鋳造方法に関し、更に詳細に
説明すると、金属等から形成される指輪、ブロー
チ等の装飾品に天然石または人工石等の宝石類を
一体に取付けることの出来る装飾品の鋳造方法に
関する。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for casting ornaments, and more specifically, the present invention relates to a method for casting ornaments, and more specifically, the present invention relates to a method for casting ornaments. This invention relates to a method for casting ornaments that can be integrally attached with jewelry.

〔従来の技術〕[Conventional technology]

従来より、指輪、ブローチ等の装飾品に天然石
または人工石等の宝石類を取付ける場合には、指
輪、ブローチ等を所望とする金属、例えば、金、
銀、白金等より形成し、これらの指輪、ブローチ
に保持爪を形成し、この保持爪により宝石類を石
留作業により1個1個取付けていた。
Conventionally, when attaching jewelry such as natural stones or artificial stones to ornaments such as rings and brooches, the rings and brooches are made of the desired metal, such as gold,
These rings and brooches were made of silver, platinum, etc., and holding claws were formed on these rings and brooches, and jewelry was attached one by one using the holding claws by stone fastening work.

また近時、石留作業を省略して、金、銀、白金
等を溶融させて鋳造する際に、鋳型に予め宝石類
を配設し、この宝石類と一体に装飾品を鋳造し、
成形する方法が提案されている(特開昭60−
61300号)。この石留作業を省略することにより、
コストダウンを図ることが出来るようになされて
いる。
Recently, when melting and casting gold, silver, platinum, etc., jewelry is placed in the mold in advance, and ornaments are cast together with the jewelry, omitting the stone fixing process.
A method of forming the
No. 61300). By omitting this stone fixing work,
This is done so that costs can be reduced.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

然し乍ら、従来の如く、ダイヤモンド等の宝石
類を鋳型に予め配設し、溶融金属を注入すると、
鋳型の温度が極めて高いので鋳型の空間に存在す
る酸素による酸化で金属の表面が変色したり、宝
石類が変色または変質したりして不良品を多発発
生させる欠点を有していた。
However, if jewelry such as diamonds is placed in a mold in advance and molten metal is injected, as in the past,
Since the temperature of the mold is extremely high, the metal surface becomes discolored due to oxidation caused by the oxygen present in the mold space, and the jewelry becomes discolored or deteriorated in quality, resulting in a large number of defective products.

また装飾品に保持爪を形成し、宝石類を石留作
業により取付ける場合に保持爪のカシメ作業に際
し、ダイヤモンド等の宝石類が損傷を受ける虞れ
を有していた。
Furthermore, when a holding claw is formed on an ornament and the jewelry is attached by a stone fastening operation, there is a risk that the diamond or other jewelry may be damaged when the holding claw is caulked.

本発明の目的は、宝石類を装飾品と一体に形成
する場合に装飾品に保持爪を形成する必要がな
く、石留作業により1個1個宝石類を取付ける作
業を行う必要がなく、更に装飾品の金属の表面が
変色したり、ダイヤモンド等の宝石類が変色また
は変質する虞れがなく、装置を大型化させること
なく経済性に優れた装飾品の鋳造方法を提供する
ものである。
It is an object of the present invention to eliminate the need to form holding claws on the ornament when forming the jewelry integrally with the ornament, eliminate the need to attach each piece of jewelry one by one using stone fastening work, and further To provide a method for casting ornaments which is highly economical without causing any risk of discoloration of the metal surface of the ornament or discoloration or deterioration of jewelry such as diamonds, and without increasing the size of the device.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は上述せる問題点に鑑みてなされたもの
で、装飾品の金属原型でワツクス原型を形成し、
該ワツクス原型に装飾品に取付けられる宝石類を
取付け、該宝石類の取付けられたワツクス原型を
鋳造枠内に配設し、該鋳造枠内に埋没材を流し込
んで鋳型を形成し、次いで、前記鋳型よりワツク
ス原型を脱ろう工程で溶融流出させた後に、前記
装飾品を形成する溶融金属を注湯し、前記宝石類
と一体化された装飾品を鋳造する装飾品の鋳造方
法において、前記ワツクス原型を形成するワツク
スに不活性ガスを発生させる物質を混入し、前記
ワツクス原型の脱ろう工程で前記鋳型内に不活性
ガスを発生させることを特徴とする。
The present invention has been made in view of the above-mentioned problems, and involves forming a wax model using a metal model of an ornament.
Jewelry to be attached to the ornament is attached to the wax model, the wax model with the jewelry attached is placed in a casting frame, an investment material is poured into the casting frame to form a mold, and then the above-mentioned In a method for casting an ornament, the wax model is melted and flowed out from a mold in a dewaxing step, and then molten metal forming the ornament is poured to cast an ornament integrated with the jewelry. The present invention is characterized in that a substance that generates an inert gas is mixed into the wax forming the model, and the inert gas is generated in the mold during the dewaxing process of the wax model.

〔作用〕[Effect]

本発明に依れば、ワツクス原型を形成するワツ
クスに不活性ガスを発生させる物質を混入させ、
ワツクス原型の脱ろう工程で鋳型内に不活性ガス
を発生させるようにしたので鋳型内に簡易な手段
で不活性ガスを充満させ、宝石類及び装飾品の表
面の酸化による変色や変質を防止することが出
来、更に石留作業を行わないので作業能率を著し
く向上出来、宝石類に損傷を与える虞れがないも
のである。
According to the present invention, a substance that generates an inert gas is mixed into the wax forming the wax model,
Inert gas is generated in the mold during the dewaxing process of the wax model, so the mold is easily filled with inert gas to prevent discoloration and deterioration of the surface of jewelry and ornaments due to oxidation. Furthermore, since no stone retaining work is required, work efficiency can be significantly improved, and there is no risk of damaging jewelry.

〔実施例〕〔Example〕

以下本発明に係る装飾品の鋳造方法を図面を参
照して詳述する。
The method for casting ornaments according to the present invention will be described in detail below with reference to the drawings.

第1図乃至第5図には、本発明に係る装飾品の
鋳造方法の一実施例の概略が夫々示されており、
まず第1図に示す如くワツクス原型11をパラフ
イン等のワツクスより形成する。このワツクス原
型11は装飾品の金属原形より形成され、例えば
装飾品の金属原形を生ゴム、シリコンゴム等のゴ
ム材に挿入し、ゴム型を形成し、このゴム型の内
部にパラフイン等のワツクスを圧入してワツクス
原型11を形成する。
1 to 5 schematically show an embodiment of the decorative article casting method according to the present invention,
First, as shown in FIG. 1, a wax model 11 is formed from wax such as paraffin. This wax model 11 is formed from a metal model of a decorative item. For example, the metal model of a decorative item is inserted into a rubber material such as raw rubber or silicone rubber to form a rubber mold, and wax such as paraffin is filled inside this rubber mold. A wax model 11 is formed by press-fitting.

前記ワツクス原型11を形成するワツクスに
は、不活性ガスを発生させる物質が混入されてい
る。この不活性ガスを発生させる物質は後述する
如く、前記ワツクスと熱分解または酸化反応して
酸素と化合する元素を持つ化合物から形成されて
いる。
The wax forming the wax model 11 is mixed with a substance that generates an inert gas. As will be described later, the substance that generates this inert gas is formed from a compound containing an element that undergoes a thermal decomposition or oxidation reaction with the wax and combines with oxygen.

次いで、第2図に示す如く、湯道用のスプルー
ワツクス12をワツクス原型11に接合し、また
装飾品の上端中央に対応する位置にダイヤモンド
等の宝石類13を取付ける。この場合、宝石類1
3が確実に保持されるように保持爪に相当するワ
ツクスをワツクス原型11に取付け、またはワツ
クスペン等を用いて宝石類13をワツクス原型1
1に一部埋設されるように取付ける。
Next, as shown in FIG. 2, a sprue wax 12 for a runner is joined to the wax model 11, and a jewelry 13 such as a diamond is attached at a position corresponding to the center of the upper end of the ornament. In this case, jewelry 1
Attach wax corresponding to the holding claw to the wax model 11 to ensure that the jewelry 13 is held securely, or use a wax pen or the like to attach the jewelry 13 to the wax model 1.
Install it so that it is partially buried in 1.

次いで、第3図に示す如く、ワツクス原型11
を鋳造枠15内に配設し、この鋳造枠15に石こ
う等の埋没材16を流し込み鋳型17を形成す
る。
Next, as shown in FIG.
is placed in a casting frame 15, and an investment material 16 such as gypsum is poured into the casting frame 15 to form a mold 17.

次いで、第4図に示す如く、埋没材16の乾燥
後、脱ろう機でワツクス原型11を加熱脱ろうさ
せる。この脱ろう工程においてワツクスに混入さ
れた不活性ガスを発生させる物質が鋳型17内で
不活性ガスを発生させる。
Next, as shown in FIG. 4, after the investment material 16 is dried, the wax model 11 is heated and dewaxed using a dewaxing machine. In this dewaxing process, the substance that generates an inert gas mixed into the wax generates an inert gas within the mold 17.

不活性ガスを発生させる物質の一例としてはジ
アゾカルバメート類、炭酸アンモン、硝酸アンモ
ン、シユウ酸アンモン、ギ酸アンモン、フツ化ア
ンモン、塩化アンモン、尿素もしくはその誘導
体、アミン類の炭酸塩、エチレンジアミンジカル
バメートの何れか1つまたはこれらを適宜混合し
て用いることが出来る。
Examples of substances that generate inert gas include diazocarbamates, ammonium carbonate, ammonium nitrate, ammonium oxalate, ammonium formate, ammonium fluoride, ammonium chloride, urea or its derivatives, carbonates of amines, and ethylenediamine dicarbamate. Any one of them or a suitable mixture of these can be used.

また前記不活性ガスを発生させる物質のワツク
スに混入される量は5〜30重量%位いが適当であ
る。
The amount of the substance that generates the inert gas mixed into the wax is preferably about 5 to 30% by weight.

次に、第5図に示す如く、鋳型17内に金、
銀、白金等の溶融金属を注湯し、鋳型17内に取
付けられた状態の宝石類13と一体化された装飾
品21を鋳造する。
Next, as shown in FIG.
Molten metal such as silver or platinum is poured to cast an ornament 21 that is integrated with the jewelry 13 installed in the mold 17.

その後、鋳造17の埋没材16を除去し、後処
理工程をすれば、宝石類13と一体化された装飾
品21を得ることが出来る。
Thereafter, by removing the investment material 16 of the casting 17 and performing a post-processing process, it is possible to obtain the ornament 21 integrated with the jewelry 13.

〔発明の効果〕〔Effect of the invention〕

本発明に依れば、ワツクス原型を形成するワツ
クスに不活性ガスを発生させる物質を混入し、こ
の不活性ガスを発生させる物質をワツクス原型の
脱ろう工程での加熱により熱分解により不活性ガ
スを発生させ、高温に昇温される鋳型内の空間を
不活性ガスで充満させ、酸素を除くことが出来る
ので装飾品や宝石類を変色させたり変質させる虞
れがなく、簡易な構成で装置を大型化させること
なく、著しく経済性に優れた装飾品の鋳造方法を
得ることが出来る。
According to the present invention, a substance that generates an inert gas is mixed into the wax that forms the wax model, and the substance that generates the inert gas is thermally decomposed by heating during the dewaxing process of the wax model to generate the inert gas. The space inside the mold, which is heated to a high temperature, is filled with inert gas and oxygen is removed, so there is no risk of discoloration or deterioration of ornaments or jewelry, and the device has a simple configuration. It is possible to obtain an extremely economical method for casting ornaments without increasing the size of the device.

以下実施例について説明する。 Examples will be described below.

<実施例 1> カルナバワツクス、木ろう、パラフインワツク
スからなるワツクス100重量部に対して、不活性
ガスを発生させる物質としてシユウ酸アンモン20
重量部を良く擦りつぶして混入し、本発明のワツ
クス原型を形成し、このワツクス原形を石こうに
埋没して鋳型を形成し、160℃の温度で脱ろうと
同時に熱分解を行なつた。この鋳型を550℃に加
熱して銀の鋳造を行なつた所、酸化皮膜の無い銀
色の鋳肌の装飾品が得られた。
<Example 1> 20 parts by weight of ammonium oxalate as a substance that generates an inert gas was added to 100 parts by weight of wax consisting of carnauba wax, wood wax, and paraffin wax.
The weight part was thoroughly crushed and mixed to form a wax model of the present invention, and this wax model was embedded in plaster to form a mold, and simultaneously dewaxed and thermally decomposed at a temperature of 160°C. When this mold was heated to 550°C and silver was cast, an ornament with a silver cast surface without an oxide film was obtained.

<実施例 2> 実施例1のワツクスに30重量部のエチレンジア
ミンジメチルカルバメートを不活性ガスを発生さ
せる物質として混入し、本発明のワツクス原型を
形成し、このワツクス原型を石こうに埋没して、
実施例1と同様に鋳型を形成し、且つ脱ろうと同
時に熱分解を行なつた。酸化皮膜が無く、変色の
ない装飾品が得られた。
<Example 2> 30 parts by weight of ethylenediamine dimethyl carbamate was mixed into the wax of Example 1 as a substance that generates an inert gas to form a wax model of the present invention, and this wax model was embedded in plaster.
A mold was formed in the same manner as in Example 1, and thermal decomposition was performed simultaneously with dewaxing. A decorative article without an oxide film and without discoloration was obtained.

<実施例 3> 実施例1のワツクスに5重量部のジアゾメチル
カルバメートを不活性ガスを発生させる物質とし
て混入し、本発明のワツクス原型を形成し、該ワ
ツクス原型にダイヤモンドを取付け、このダイヤ
モンドとワツクス原型とをシリカ系の埋没材に埋
没して鋳型を形成し、160℃の温度で脱ろうと同
時に熱分解を行なつた。この鋳型を1220℃に加熱
して白金の鋳造を行なつた所、ダイヤモンドは変
色及び変質のない状態で得られた。
<Example 3> 5 parts by weight of diazomethyl carbamate was mixed into the wax of Example 1 as a substance that generates an inert gas to form a wax model of the present invention, and a diamond was attached to the wax model. A mold was formed by immersing the wax model in a silica-based investment material, and simultaneously dewaxing and thermal decomposition were performed at a temperature of 160°C. When this mold was heated to 1220°C and platinum was cast, diamond was obtained without discoloration or alteration.

<実施例 4> 実施例3の不活性ガスを発生させる物質に代え
てエチレンジアミンジニトロジメチルカルバメー
ト5重量部と、ギ酸アンモン5重量部を用いてワ
ツクス原型を形成し、実施例3と同様の鋳造を行
なつた所、ダイヤモンドの変色及び変質のない装
飾品が得られた。
<Example 4> A wax model was formed using 5 parts by weight of ethylenediamine dinitrodimethyl carbamate and 5 parts by weight of ammonium formate in place of the substance that generates an inert gas in Example 3, and casting was carried out in the same manner as in Example 3. When this process was carried out, ornaments without diamond discoloration or deterioration were obtained.

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

第1図乃至第5図は本発明に係る装飾品の鋳造
方法の一実施を夫々示すもので、第1図及び第2
図はワツクス原型の斜視図、第3図及び第4図は
鋳型の形成状態を夫々示す断面説明図、第5図は
鋳造状態を示す断面説明図である。 図中、11……ワツクス原型、13……宝石
類、15……鋳造枠、16……埋没材、17……
鋳型、21……装飾品。
1 to 5 show one implementation of the decorative article casting method according to the present invention, and FIGS.
The figure is a perspective view of the wax model, FIGS. 3 and 4 are cross-sectional explanatory views showing the forming state of the mold, respectively, and FIG. 5 is a cross-sectional view showing the casting state. In the figure, 11... Wax prototype, 13... Jewelry, 15... Casting frame, 16... Investment material, 17...
Mold, 21... Ornaments.

Claims (1)

【特許請求の範囲】 1 装飾品の金属原型でワツクス原型を形成し、
該ワツクス原型に装飾品に取付けられる宝石類を
取付け、該宝石類の取付けられたワツクス原型を
鋳造枠内に配設し、該鋳造枠内に埋没材を流し込
んで鋳型を形成し、次いで、前記鋳型よりワツク
ス原型を脱ろう工程で溶融流出させた後に、前記
装飾品を形成する溶融金属を注湯し、前記宝石類
と一体化された装飾品を鋳造する装飾品の鋳造方
法において、前記ワツクス原型を形成するワツク
スに不活性ガスを発生させる物質を混入し、前記
ワツクス原型の脱ろう工程で前記鋳型内に不活性
ガスを発生させることを特徴とする装飾品の鋳造
方法。 2 前記不活性ガスを発生させる物質が前記ワツ
クスと熱分解または酸化反応して酸素と化合する
元素を持つ化合物からなることを特徴とする特許
請求の範囲第1項記載の装飾品の鋳造方法。 3 前記不活性ガスを発生させる物質がジアゾカ
ルバメート類、炭酸アンモン、硝酸アンモン、シ
ユウ酸アンモン、ギ酸アンモン、フツ化アンモ
ン、塩化アンモン、尿素もしくはその誘導体、ア
ミン類の炭酸塩、エチレンジアミンジカルバメー
トの何れか1つまたは2つ以上の混合物であるこ
とを特徴とする特許請求の範囲第1項または第2
項記載の装飾品の鋳造方法。
[Claims] 1. Forming a wax model using a metal model of an ornament,
Jewelry to be attached to the ornament is attached to the wax model, the wax model with the jewelry attached is placed in a casting frame, an investment material is poured into the casting frame to form a mold, and then the above-mentioned In a method for casting an ornament, the wax model is melted and flowed out from a mold in a dewaxing step, and then molten metal forming the ornament is poured to cast an ornament integrated with the jewelry. 1. A method for casting a decorative article, comprising: mixing a substance that generates an inert gas into wax that forms a model, and generating an inert gas in the mold during a dewaxing step of the wax model. 2. The method for casting ornaments according to claim 1, wherein the substance that generates the inert gas is a compound containing an element that undergoes a thermal decomposition or oxidation reaction with the wax and combines with oxygen. 3 The substance that generates the inert gas is diazocarbamates, ammonium carbonate, ammonium nitrate, ammonium oxalate, ammonium formate, ammonium fluoride, ammonium chloride, urea or its derivatives, carbonates of amines, or ethylenediamine dicarbamate. Claim 1 or 2, characterized in that it is one or a mixture of two or more.
Method for casting the ornaments described in Section 1.
JP30921987A 1987-12-07 1987-12-07 Method for casting accessory Granted JPH01148203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30921987A JPH01148203A (en) 1987-12-07 1987-12-07 Method for casting accessory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30921987A JPH01148203A (en) 1987-12-07 1987-12-07 Method for casting accessory

Publications (2)

Publication Number Publication Date
JPH01148203A JPH01148203A (en) 1989-06-09
JPH0412963B2 true JPH0412963B2 (en) 1992-03-06

Family

ID=17990365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30921987A Granted JPH01148203A (en) 1987-12-07 1987-12-07 Method for casting accessory

Country Status (1)

Country Link
JP (1) JPH01148203A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037177A1 (en) * 1998-01-27 1999-07-29 Kabushiki Kaisha Effiel Paired accessory and method for manufacturing the same
WO2008139661A1 (en) * 2007-05-02 2008-11-20 Seiwa Co., Ltd. Ornamental and artificial nail

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030039699A (en) * 2001-11-14 2003-05-22 (주)쥬얼파크 Method for manufacturing accessory of jewelry precious metal by wax pave type stone setting and the accessory
KR20030078246A (en) * 2002-03-28 2003-10-08 (주) 나우젬 Casting method of joined multi color ornaments and Castinged multi color ornaments
JP2005323776A (en) * 2004-05-13 2005-11-24 Sanyu Kogei:Kk Method of manufacturing adornment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037177A1 (en) * 1998-01-27 1999-07-29 Kabushiki Kaisha Effiel Paired accessory and method for manufacturing the same
WO2008139661A1 (en) * 2007-05-02 2008-11-20 Seiwa Co., Ltd. Ornamental and artificial nail

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