JPH0678814A - Production of metallic ring - Google Patents

Production of metallic ring

Info

Publication number
JPH0678814A
JPH0678814A JP18844492A JP18844492A JPH0678814A JP H0678814 A JPH0678814 A JP H0678814A JP 18844492 A JP18844492 A JP 18844492A JP 18844492 A JP18844492 A JP 18844492A JP H0678814 A JPH0678814 A JP H0678814A
Authority
JP
Japan
Prior art keywords
metal
plastic composition
binder
ring
pipe
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.)
Granted
Application number
JP18844492A
Other languages
Japanese (ja)
Other versions
JP3067402B2 (en
Inventor
Masaki Morikawa
正樹 森川
Juichi Hirasawa
寿一 平澤
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.)
Mitsubishi Materials Corp
Original Assignee
Mitsubishi Materials Corp
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 Mitsubishi Materials Corp filed Critical Mitsubishi Materials Corp
Priority to JP4188444A priority Critical patent/JP3067402B2/en
Publication of JPH0678814A publication Critical patent/JPH0678814A/en
Application granted granted Critical
Publication of JP3067402B2 publication Critical patent/JP3067402B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To provide the process for production of the metallic ring which can be produced by a simple stage without requiring the special skill of an operator. CONSTITUTION:Powder consisting of metals or an alloy consisting essentially of the metals and a binder are kneaded and defoamed to form a plastic compsn. This plastic compsn. is formed to a pipe shape 1 and thereafter, the pipe is cut to a prescribed size to form rings 3, 4. These rings are sintered by heating.

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、指輪やスカーフ止め
等の金属製リングの製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a metal ring such as a ring or a scarf stopper.

【0002】[0002]

【従来の技術】従来、指輪やスカーフ止め等の金属製リ
ングを製造するには、ダイキャスト成形、ロストワック
ス、プレス打ち抜き法等が採用されていた。
2. Description of the Related Art Conventionally, die-cast molding, lost wax, press punching and the like have been used for producing metal rings such as rings and scarves.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記の
製造方法は大規模な設備が必要であり、また工程が複雑
でしかも作業者に特殊技能が要求されるといった改善す
べき課題を有している。
However, the above-mentioned manufacturing method has a problem to be improved that a large-scale facility is required, the process is complicated, and the operator is required to have special skill. .

【0004】本発明はこのような技術背景に鑑みてなさ
れたもので、その目的とするところは、作業者が特殊技
能を必要とせず、しかも簡略な工程で実施することので
きる金属製リングの製造方法を提供することにある。
The present invention has been made in view of the above technical background, and an object of the present invention is to provide a metal ring which does not require special skill by an operator and can be implemented in a simple process. It is to provide a manufacturing method.

【0005】[0005]

【課題を解決するための手段】本発明の金属製リングの
製造方法では、金属または該金属を主成分とする合金か
らなる粉末と結合剤とを混練し脱泡して可塑性組成物と
し、該可塑性組成物をパイプ状に形成し、その後所定の
寸法に切断してリング状とした後、加熱し焼結すること
によって金属製リングを得ることを前記課題の解決手段
とした。
In the method for producing a metal ring of the present invention, a powder made of a metal or an alloy containing the metal as a main component and a binder are kneaded and defoamed to obtain a plastic composition. The means for solving the above problems was to obtain a metal ring by forming a plastic composition into a pipe shape, then cutting it into a predetermined size into a ring shape, and then heating and sintering.

【0006】[0006]

【作用】本発明における金属製リングの製造方法によれ
ば、金属または該金属を主成分とする合金を含む可塑性
組成物を形成し、この可塑性組成物を成形、切断してリ
ング状に成形し、その後これを焼結するといった簡易な
操作によってなされるので、作業者に特殊技能が要求さ
れることなく、また大型の設備もとくに必要としないも
のとなる。
According to the method for producing a metal ring in the present invention, a plastic composition containing a metal or an alloy containing the metal as a main component is formed, and the plastic composition is molded and cut into a ring shape. Since it is carried out by a simple operation such as sintering, no special skill is required for the operator and no large equipment is required.

【0007】[0007]

【実施例】まず、金属あるいは合金の粉末と、結合剤等
の材料を用意する。金属あるいは合金の粉末としては、
金、銀、銅、白金、鉛、ニッケル等の金属粉末およびこ
れら金属を主成分とする合金の粉末などが用いられる。
また、これらの金属あるいは合金の粉末としては、その
平均粒径が200μm以下のものが好ましい。なぜな
ら、平均粒径が200μmを越えると、得られる可塑性
組成物の伸びおよび強度が低下してし、成形性や焼結性
が損なわれるからである。結合剤としてはセルロース系
水溶性バインダーが好適に用いられ、具体的にはメチル
セルロース、エチルセルロース等が用いられる。このよ
うなセルロース系水溶性バインダーは、水に溶解され水
溶液として用いられるもので、加熱すると速やかにゲル
化して固化し、造形物の形状を保持するものである。ま
た、セルロース系水溶性バインダーは、前記金属あるい
は合金の粉末との混合に先立ち、水と混合されて用意さ
れる。この混合操作については、まずバインダーと水と
を混合し、しばらく放置して寒天状物質とし、次にこの
寒天状物質に界面活性剤を添加して混合するといった方
法が採用されている。ここで、界面活性剤は前記バイン
ダーと水との反応により生じた固形物を分散させ、金属
あるいは合金の粉末とバインダーとの混合性を良くする
ためのものである。
EXAMPLE First, metal or alloy powder and materials such as a binder are prepared. As powder of metal or alloy,
Metal powders of gold, silver, copper, platinum, lead, nickel and the like and powders of alloys containing these metals as main components are used.
The powder of these metals or alloys preferably has an average particle size of 200 μm or less. This is because if the average particle size exceeds 200 μm, the elongation and strength of the obtained plastic composition are reduced, and the formability and sinterability are impaired. As the binder, a cellulosic water-soluble binder is preferably used, and specifically, methyl cellulose, ethyl cellulose or the like is used. Such a cellulosic water-soluble binder is used as an aqueous solution by being dissolved in water, and when heated, it rapidly gels and solidifies to maintain the shape of the shaped article. The cellulosic water-soluble binder is prepared by mixing with water before mixing with the powder of the metal or alloy. Regarding this mixing operation, a method is adopted in which a binder and water are first mixed, left for a while to form an agar-like substance, and then a surfactant is added to this agar-like substance and mixed. Here, the surfactant is for dispersing the solid matter generated by the reaction between the binder and water to improve the mixing property of the metal or alloy powder and the binder.

【0008】次に、前記金属あるいは合金の粉末と、予
め水と混合された結合剤と、油脂とを混合して混練し、
脱泡して可塑性組成物とする。ここで、油脂を配合する
のは、成形および切断の操作の際、可塑性組成物が手な
どに付着し、該組成物からなる成形物の形状等が損なわ
れることを防止するためである。このような油脂として
は、高級有機酸、高級有機酸エステル、高級アルコール
等が使用可能である。高級有機酸としては、フタル酸等
が挙げられ、高級有機酸エステルとしては、フタル酸-
n-ジオクチル及びフタル酸-n-ジブチル等が挙げら
れ、また高級アルコールとしては、ポリビニルアルコー
ル、ポリエチレングリコール、ポリエチレングリコー
ル、エーテル類等が挙げられる。
Next, the powder of the metal or alloy, the binder previously mixed with water, and the fat and oil are mixed and kneaded,
Defoam to give a plastic composition. Here, the fats and oils are blended in order to prevent the plastic composition from adhering to the hands or the like during the molding and cutting operations and impairing the shape and the like of the molded product made of the composition. As such oils and fats, higher organic acids, higher organic acid esters, higher alcohols and the like can be used. Examples of the higher organic acid include phthalic acid, and examples of the higher organic acid ester include phthalic acid-
Examples thereof include n-dioctyl and n-dibutyl phthalate, and examples of higher alcohols include polyvinyl alcohol, polyethylene glycol, polyethylene glycol, ethers and the like.

【0009】また、金属あるいは合金の粉末の配合量
(含有量)については、可塑性組成物に対して50〜9
0重量%とするのが好ましい。なぜなら、これら粉末、
とくに金属粉末は、最終的に得られる製品の色を決定す
る重要な要素であるが、その配合量(含有量)が50重
量%未満であると、その効果が薄く所望する色が十分に
得られないからであり、一方90重量%を越えると可塑
性組成物の伸びおよび強度が低下し、成形性や焼結性が
損なわれるからである。結合剤(セルロース系水溶性バ
インダー)については、可塑性組成物に対し0.8重量
%未満では得られる成形物にその形状を保持させる効果
が得られず、8重量%を越えると粘性度が大きくなり過
ぎて成形し難くなる。したがって、セルロース系バイン
ダーの添加量は0.8〜8重量%とするのが好ましい。
また、界面活性剤の可塑性組成物に対する添加量につい
ては、0.03重量%未満では金属あるいは合金と結合
剤との混合性をよくするといった効果が十分に得られ
ず、3重量%を越えると得られる可塑性組成物の粘性度
が低下し流動性が増して成形し難くなる。したがって、
界面活性剤の添加量については0.03%〜3重量%と
するのが好ましい。また、油脂については、0.1重量
%未満では前述した効果が十分得られず、3重量%を越
えると得られる可塑性組成物が滑りやすくなって作業性
が悪くなってしまう。したがって、油脂の添加量につい
ては0.1〜3重量%とするのが好ましい。なお、ここ
では、金属あるいは合金の粉末、結合剤、界面活性剤、
油脂の可塑性組成物に対する配合量(含有量)を示した
が、可塑性組成物は、これら以外に水や不可避不純物を
含んでいるのはもちろんである。
The compounding amount (content) of the metal or alloy powder is 50 to 9 with respect to the plastic composition.
It is preferably 0% by weight. Because these powders,
In particular, the metal powder is an important factor that determines the color of the final product, but if the content (content) is less than 50% by weight, the effect is thin and the desired color is sufficiently obtained. On the other hand, if it exceeds 90% by weight, the elongation and strength of the plastic composition are lowered and the moldability and sinterability are impaired. Regarding the binder (cellulosic water-soluble binder), if it is less than 0.8% by weight with respect to the plastic composition, the effect of retaining the shape of the obtained molded product cannot be obtained, and if it exceeds 8% by weight, the viscosity is large It becomes too difficult to mold. Therefore, the addition amount of the cellulosic binder is preferably 0.8 to 8% by weight.
Regarding the amount of the surfactant added to the plastic composition, if it is less than 0.03% by weight, the effect of improving the mixing property of the metal or alloy with the binder cannot be sufficiently obtained, and if it exceeds 3% by weight. The obtained plastic composition has reduced viscosity and increased fluidity, making it difficult to mold. Therefore,
The amount of the surfactant added is preferably 0.03% to 3% by weight. With regard to fats and oils, if the amount is less than 0.1% by weight, the above-mentioned effects are not sufficiently obtained, and if the amount exceeds 3% by weight, the obtained plastic composition becomes slippery and the workability is deteriorated. Therefore, it is preferable that the added amount of fats and oils is 0.1 to 3% by weight. In addition, here, powder of metal or alloy, binder, surfactant,
Although the blending amount (content) of the oil / fat with respect to the plastic composition is shown, it goes without saying that the plastic composition further contains water and inevitable impurities.

【0010】次いで、得られた可塑性組成物を成形し、
図1に示すように内部に中空部2を有するパイプ状(円
筒状)成形体1とする。成形法としては、押し出し成形
法などの従来公知の方法が採用される。
Then, the obtained plastic composition is molded,
As shown in FIG. 1, a pipe-shaped (cylindrical) molded body 1 having a hollow portion 2 inside is formed. As the molding method, a conventionally known method such as an extrusion molding method is adopted.

【0011】次いで、押し出し成形後のパイプ状成形体
1をカッター等を用いて所定の幅で切断し、リング状成
形体3,4を得る。この切断は、図1に示すように前記
パイプ状成形体1の軸線と直交する面5…で切断しても
よく、また該面に対し適宜な傾きを有する面6…で切断
してもよい。なお、得られたリング状成形体3,4に対
し、その切断面や周面に彫刻等を施して文字や模様を付
与してもよい。
Next, the pipe-shaped molded body 1 after extrusion molding is cut into a predetermined width with a cutter or the like to obtain ring-shaped molded bodies 3 and 4. As shown in FIG. 1, this cutting may be performed on a surface 5 ... Orthogonal to the axis of the pipe-shaped molded product 1, or may be a surface 6 having an appropriate inclination with respect to the surface. . The cut surfaces and peripheral surfaces of the obtained ring-shaped molded products 3 and 4 may be engraved or the like to give characters and patterns.

【0012】その後、得られた成形体3,4を加熱焼成
して焼結体を得る。この焼結にあたっては、常圧焼結、
雰囲気加圧焼結などの従来公知の方法が採用可能であ
る。焼結温度についても特に限定されるものではない
が、例えば可塑性組成物が純金の粉末を含有する場合に
は、空気中にて1000℃で焼成を行うのが好ましい。
また、金を75.04重量%、銀を12.5重量%、銅を
12.5重量%の割合で混合した、いわゆるK18の合
金を含有する場合には、水素ガス雰囲気中にて870℃
で焼成を行うのが好ましい。また、焼成後の焼結体に対
して、塑性加工を施し、所望の形状に仕上げてもよい。
Thereafter, the obtained molded bodies 3 and 4 are heated and fired to obtain a sintered body. In this sintering, normal pressure sintering,
A conventionally known method such as atmospheric pressure sintering can be adopted. The sintering temperature is also not particularly limited, but when the plastic composition contains pure gold powder, for example, it is preferable to perform firing in air at 1000 ° C.
Further, when a so-called K18 alloy containing 75.04% by weight of gold, 12.5% by weight of silver and 12.5% by weight of copper is contained, the so-called K18 alloy is contained in a hydrogen gas atmosphere at 870 ° C.
It is preferable to carry out firing at. Further, the sintered body after firing may be subjected to plastic working to finish it into a desired shape.

【0013】このような製造方法によれば、作業者に特
殊技能が必要でなく、電気炉等を用いて短時間で焼成す
ることが可能であり、簡易に金属製リングを製造するこ
とができる。
According to such a manufacturing method, no special skill is required for the worker, it is possible to perform firing in a short time using an electric furnace or the like, and a metal ring can be easily manufactured. .

【0014】なお、上記実施例ではパイプ状成形体を、
円筒体としたが、本発明はこの例に限定されるものでは
なく、例えば図2ないし図4に示すように、外形が角柱
やかまぼこ型にしてもよい。
In the above embodiment, the pipe-shaped molded body is
Although a cylindrical body is used, the present invention is not limited to this example. For example, as shown in FIGS. 2 to 4, the outer shape may be a prism or a semicylindrical shape.

【0015】[0015]

【発明の効果】以上説明したように本発明の金属製リン
グの製造方法によれば、配合、混合、成形、切断、焼結
といった比較的簡易な操作によってなされるので、作業
者に特殊技能が要求されることなく、また大規模な設備
や複雑な工程も必要としなくなり、したがって容易に金
属製リングを製造することができ、またこれにより金属
製リングの製造コストの低減化を図ることができる。
As described above, according to the method for producing a metal ring of the present invention, the operations are performed by relatively simple operations such as compounding, mixing, molding, cutting and sintering. It is not required and does not require large-scale equipment or complicated process, and therefore, the metal ring can be easily manufactured, and the manufacturing cost of the metal ring can be reduced. .

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

【図1】本発明の製造方法を示すパイプ状成形体および
パイプ状成形体から切断されたリング状成形体の斜視図
である。
FIG. 1 is a perspective view of a pipe-shaped molded body and a ring-shaped molded body cut from the pipe-shaped molded body, showing a manufacturing method of the present invention.

【図2】本発明の製造方法に用いるパイプ状成形体の一
例を示す断面図である。
FIG. 2 is a cross-sectional view showing an example of a pipe-shaped molded body used in the manufacturing method of the present invention.

【図3】本発明の製造方法に用いるパイプ状成形体の他
の例を示す断面図である。
FIG. 3 is a cross-sectional view showing another example of the pipe-shaped molded body used in the manufacturing method of the present invention.

【図4】本発明の製造方法に用いるパイプ状成形体の他
の例を示す断面図である。
FIG. 4 is a cross-sectional view showing another example of a pipe-shaped molded body used in the manufacturing method of the present invention.

【符号の説明】[Explanation of symbols]

1 パイプ状成形体 3,4 リング状成形体 1 Pipe-shaped compact 3,4 Ring-shaped compact

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 金属または該金属を主成分とする合金か
らなる粉末と結合剤とを混練し脱泡して可塑性組成物と
し、該可塑性組成物をパイプ状に形成し、その後所定の
寸法に切断してリング状とした後、加熱し焼結すること
によって金属製リングを得ることを特徴とする金属製リ
ングの製造方法。
1. A plastic composition is obtained by kneading and defoaming a powder made of a metal or an alloy containing the metal as a main component and defoaming, and the plastic composition is formed into a pipe shape, and then formed into a predetermined size. A method for manufacturing a metal ring, which comprises obtaining a metal ring by cutting the material into a ring shape and then heating and sintering the metal ring.
JP4188444A 1992-07-15 1992-07-15 Manufacturing method of metal ring Expired - Lifetime JP3067402B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4188444A JP3067402B2 (en) 1992-07-15 1992-07-15 Manufacturing method of metal ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4188444A JP3067402B2 (en) 1992-07-15 1992-07-15 Manufacturing method of metal ring

Publications (2)

Publication Number Publication Date
JPH0678814A true JPH0678814A (en) 1994-03-22
JP3067402B2 JP3067402B2 (en) 2000-07-17

Family

ID=16223797

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4188444A Expired - Lifetime JP3067402B2 (en) 1992-07-15 1992-07-15 Manufacturing method of metal ring

Country Status (1)

Country Link
JP (1) JP3067402B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999012443A1 (en) * 1997-09-08 1999-03-18 West Trent W Wear resistant jewelry apparatus and method
US6062045A (en) * 1998-09-08 2000-05-16 West; Trent W. Wear resistance jewelry
EP1304053A2 (en) * 2001-10-19 2003-04-23 Lac Spa Method of making jewellery goods and wearable multicolor ornamental articles manufactured with such products
US6553667B1 (en) 1997-09-08 2003-04-29 Trent West Apparatus and method for manufacturing composite articles including wear resistant jewelry and medical and industrial devices and components thereof
KR100424687B1 (en) * 2001-04-18 2004-03-27 이준현 A manufacturing method of the outfittings for accessory
US20130047667A1 (en) * 2011-08-25 2013-02-28 Masaki Takahashi Ring manufacturing method, apparatus of the same and rings manufactured by the ring manufacturing method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999012443A1 (en) * 1997-09-08 1999-03-18 West Trent W Wear resistant jewelry apparatus and method
US6553667B1 (en) 1997-09-08 2003-04-29 Trent West Apparatus and method for manufacturing composite articles including wear resistant jewelry and medical and industrial devices and components thereof
US6062045A (en) * 1998-09-08 2000-05-16 West; Trent W. Wear resistance jewelry
KR100424687B1 (en) * 2001-04-18 2004-03-27 이준현 A manufacturing method of the outfittings for accessory
EP1304053A2 (en) * 2001-10-19 2003-04-23 Lac Spa Method of making jewellery goods and wearable multicolor ornamental articles manufactured with such products
EP1304053A3 (en) * 2001-10-19 2004-01-28 Lac Spa Method of making jewellery goods and wearable multicolor ornamental articles manufactured with such products
US20130047667A1 (en) * 2011-08-25 2013-02-28 Masaki Takahashi Ring manufacturing method, apparatus of the same and rings manufactured by the ring manufacturing method
US8910382B2 (en) * 2011-08-25 2014-12-16 Mokumeganeya Co., Ltd. Ring manufacturing method, apparatus of the same and rings manufactured by the ring manufacturing method

Also Published As

Publication number Publication date
JP3067402B2 (en) 2000-07-17

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