JPH04344848A - Accessory and its casting method - Google Patents
Accessory and its casting methodInfo
- Publication number
- JPH04344848A JPH04344848A JP14560991A JP14560991A JPH04344848A JP H04344848 A JPH04344848 A JP H04344848A JP 14560991 A JP14560991 A JP 14560991A JP 14560991 A JP14560991 A JP 14560991A JP H04344848 A JPH04344848 A JP H04344848A
- Authority
- JP
- Japan
- Prior art keywords
- core material
- wax
- noble metal
- mold
- pin
- 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 description 15
- 238000000034 method Methods 0.000 title claims description 15
- 239000011162 core material Substances 0.000 claims abstract description 78
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims description 43
- 238000000576 coating method Methods 0.000 claims description 43
- 239000010970 precious metal Substances 0.000 claims description 40
- 239000011505 plaster Substances 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 229920005989 resin Polymers 0.000 claims description 13
- 239000011347 resin Substances 0.000 claims description 13
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910052602 gypsum Inorganic materials 0.000 abstract 4
- 239000010440 gypsum Substances 0.000 abstract 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 19
- 239000010931 gold Substances 0.000 description 19
- 229910052737 gold Inorganic materials 0.000 description 19
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 18
- 229910052697 platinum Inorganic materials 0.000 description 9
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000007747 plating Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Landscapes
- Adornments (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、鋳造により形成された
貴金属被膜を有する装飾具及びその鋳造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ornament having a noble metal coating formed by casting and a method for casting the same.
【０００２】0002
【従来の技術】金、白金等の貴金属製の装飾具は、古来
から人々に好まれてきた。しかしながら貴金属は非常に
高価なものであり、所有できるのは、一部の富裕な人々
のみであった。2. Description of the Related Art Decorative tools made of precious metals such as gold and platinum have been loved by people since ancient times. However, precious metals were very expensive and only a few wealthy people could own them.
【０００３】そのため、外観が貴金属単一で製造したも
のと変わらず、安価に製造できる装飾具が種々提案され
ている。例えば、安価な金属を芯材とし、その表面に貴
金属めっき、貴金属薄張等の方法により貴金属の薄い被
膜を形成したもの、外型を薄い貴金属で成形し、中は空
洞にしたもの等がある。[0003] For this reason, various ornaments have been proposed that have the same external appearance as those made of only noble metal and can be manufactured at low cost. For example, there are products that have a core material made of inexpensive metal and a thin coat of precious metal formed on its surface by methods such as precious metal plating or thin precious metal coating, and products that have an outer mold made of a thin precious metal and are hollow inside. .
【０００４】0004
【発明が解決しようとする課題】しかしながら、めっき
により形成される被膜は、通常１０μｍ程度と薄く、所
定期間使用して傷等がついた場合にも研磨することはで
きず、使用しているあいだに、摩擦等により貴金属被膜
が次第にはげてしまうという問題があった。この問題を
解決するためには、被膜の厚さを厚くすることが考えら
れるが、例えば１００μｍ以上の厚さにめっきするには
、メッキ処理に非常に長い時間がかかり、製造コストが
高くなる。[Problem to be Solved by the Invention] However, the film formed by plating is usually as thin as about 10 μm, and even if it becomes scratched after being used for a certain period of time, it cannot be polished. Another problem was that the noble metal coating gradually peeled off due to friction and the like. In order to solve this problem, it is conceivable to increase the thickness of the coating, but for example, plating to a thickness of 100 μm or more takes a very long time and increases manufacturing costs.
【０００５】また、表面に貴金属の薄板を貼り付けた装
飾品も知られているが、三次元的に複雑な形状のものに
は貴金属の薄板を貼りにくく、その厚さを厚くすると貼
ることがより困難になるという問題があった。[0005] Decorative items with a thin plate of precious metal attached to the surface are also known, but it is difficult to attach a thin plate of precious metal to an object with a three-dimensionally complex shape, and it becomes difficult to attach it if the thickness is increased. The problem was that it became more difficult.
【０００６】更に、薄い貴金属で外形を形成し、内部を
空洞にしたものは、全体を貴金属で形成したものに比べ
て非常に軽くなるため、使用する際に重量感がなく、重
厚な趣を出すことができないという問題があった。Furthermore, products whose outer shape is made of a thin precious metal and whose interior is hollow are much lighter than those made entirely of precious metals, so they do not feel heavy when used, and have a profound appearance. The problem was that I couldn't get it out.
【０００７】本発明は、上記問題点に鑑みてなされたも
ので、その目的は、製造コストが安価で、外観は全体を
貴金属で製造したものと変わらず、重量感も類似してい
て、長期間使用しても表面の貴金属膜が剥れてしまうこ
とがなく、傷等が生じても研磨して再生することができ
る装飾具及びその鋳造方法を提供することにある。The present invention has been made in view of the above-mentioned problems, and its objectives are to have low manufacturing costs, the same appearance as those made entirely of precious metals, similar weight feel, and long lifespan. It is an object of the present invention to provide a decorative tool and a method for casting the same, in which the noble metal film on the surface does not peel off even after use for a period of time, and even if scratches or the like occur, the decorative tool can be polished and regenerated.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
、本発明の装飾具は、所定形状をなす金属の芯材の表面
を覆うように、厚さ１００ μｍ以上の貴金属被膜が形
成され、前記芯材の表面に形成された２個以上の孔に前
記貴金属が入り込んでいることを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the decorative tool of the present invention is provided with a noble metal coating having a thickness of 100 μm or more so as to cover the surface of a metal core material having a predetermined shape, It is characterized in that the noble metal enters two or more holes formed on the surface of the core material.
【０００９】また、本発明の装飾具の鋳造方法は、所定
形状をなし、表面に２個以上の孔を有する金属の芯材を
形成する工程と、前記芯材の孔に貴金属のピンを挿入し
、かつ、前記芯材の表面にろうを厚さ１００ μｍ以上
で被覆する工程と、前記ろうで被覆された前記芯材を石
膏で埋設して固めた後、加熱して前記ろうを流し出し、
前記芯材が前記ピンを介して内部空間に支持された石膏
型を作る工程と、この石膏型の内部空間に前記ピンと同
材質の貴金属を溶融状態で流し込み、冷却して固化する
工程と、前記石膏型を砕いて貴金属の被膜が形成された
前記芯材を取り出す工程と、この鋳込み成形物の表面を
研磨する工程とを含むことを特徴とする。[0009] Furthermore, the method for casting a decorative tool of the present invention includes the steps of forming a metal core material having a predetermined shape and having two or more holes on the surface, and inserting a noble metal pin into the hole of the core material. and a step of coating the surface of the core material with wax to a thickness of 100 μm or more, and embedding the core material coated with the wax with plaster and hardening it, and then heating to pour out the wax. ,
a step of making a plaster mold in which the core material is supported in an internal space via the pin; a step of pouring a noble metal of the same material as the pin in a molten state into the internal space of the plaster mold, and cooling and solidifying the mold; The method is characterized by including the steps of crushing the plaster mold to take out the core material on which the noble metal coating is formed, and polishing the surface of the cast molding.
【００１０】以下、本発明を好ましい態様を挙げて詳細
に説明する。[0010] The present invention will be explained in detail below by citing preferred embodiments.
【００１１】本発明の装飾具は、例えば指輪、ペンダン
ト、ブローチ、ベルトのバックル、タイピン等、材質と
して金属や貴金属を用いる装飾具全般を意味する。[0011] The ornaments of the present invention refer to all ornaments using metals or precious metals as materials, such as rings, pendants, brooches, belt buckles, and tie pins.
【００１２】本発明の装飾具は、所定形状をなす金属の
芯材の表面を覆うように、厚さ１００μｍ以上の貴金属
被膜が形成されている。所定形状とは、指輪、ペンダン
ト、ブローチ、ベルトのバックル、タイピン等、目的と
する装飾具に応じた形状であって、芯材の大きさは、目
的とする装飾具の大きさから、貴金属被膜の厚さ分を引
いた大きさに形成する。また、芯材として用いる金属は
ステンレス、真鍮等、被膜を形成する貴金属の比重に近
いものを用いると、貴金属被膜を形成した後の重量感が
、貴金属単一で製造したものと類似するので好ましい。[0012] In the decorative tool of the present invention, a noble metal coating having a thickness of 100 μm or more is formed so as to cover the surface of a metal core material having a predetermined shape. The predetermined shape is the shape that corresponds to the intended decorative item, such as a ring, pendant, brooch, belt buckle, tie pin, etc., and the size of the core material is determined based on the size of the intended decorative item. Form the size by subtracting the thickness. In addition, it is preferable to use a metal such as stainless steel or brass as the core material, which has a specific gravity close to that of the precious metal that forms the coating, because the weight after forming the precious metal coating will be similar to that of a product made of only precious metal. .
【００１３】この芯材に、厚さ１００ μｍ以上の貴金
属被膜を、鋳造により形成する。被膜を形成する貴金属
としては、金、白金、パラジウム等が好ましく用いられ
る。
貴金属被膜の厚さを１００ μｍ以上にすると、長期間
使用しても摩擦により貴金属被膜がはげてしまうことは
ほとんどなく、また、所定期間使用して微小な傷が付き
貴金属特有の輝きが減少した場合、表面を研磨して再生
することもできる。なお、被膜の厚さは２００ μｍ以
上がより好ましい。[0013] A noble metal coating having a thickness of 100 μm or more is formed on this core material by casting. As the noble metal forming the film, gold, platinum, palladium, etc. are preferably used. If the thickness of the precious metal coating is 100 μm or more, the precious metal coating will hardly peel off due to friction even after long-term use, and the shine characteristic of precious metals will decrease due to minute scratches after using it for a certain period of time. In some cases, the surface can be polished and regenerated. Note that the thickness of the coating is more preferably 200 μm or more.
【００１４】本発明の装飾具の貴金属被膜は、鋳造によ
り形成する。その鋳造方法は以下のようにして行なうの
が好ましい。[0014] The noble metal coating of the ornament of the present invention is formed by casting. The casting method is preferably carried out as follows.
【００１５】まず、所定形状をなす金属の芯材の表面に
、２個以上の孔を形成する。この孔は、貴金属のピンを
挿入し、芯材がピンを介して、石膏型中の内部空間に支
持されるようにするために形成するものであるので、孔
を形成する位置、孔の深さ、孔の数は、そのことを考慮
して適切なものとするのが好ましい。First, two or more holes are formed on the surface of a metal core material having a predetermined shape. This hole is formed to insert a precious metal pin so that the core material is supported in the internal space of the plaster mold through the pin, so the position and depth of the hole are determined. It is preferable that the number of holes be set appropriately in consideration of this fact.
【００１６】次に、形成した芯材の孔に貴金属のピンを
挿入し、かつ、前記芯材の表面にろうを厚さ１００ μ
ｍ以上で被覆する。貴金属のピンは、被膜とする貴金属
と同材質のものであって、孔に挿入される部分と、ろう
の厚さとの和に、石膏型中で、芯材を支持するのに十分
な長さを加えた長さとするのが好ましい。なお、ピンの
形状は、必ずしも棒状のものにかぎらず、石膏型中で芯
材を支持することができるものであれば、種々の形状を
採用することができる。Next, a noble metal pin is inserted into the hole of the core material formed, and wax is applied to the surface of the core material to a thickness of 100 μm.
Cover with m or more. The precious metal pin is made of the same material as the precious metal to be coated, and has a length sufficient to support the core material in the plaster mold, including the part inserted into the hole and the thickness of the solder. It is preferable that the length is the sum of . Note that the shape of the pin is not necessarily limited to a rod-like shape, and various shapes can be adopted as long as the pin can support the core material in the plaster mold.
【００１７】また、ピンを芯材の孔に挿入した後、ろう
で被覆してもよく、あるいは芯材をろうで被覆した後、
ピンを挿入してもよい。[0017] Furthermore, after the pin is inserted into the hole in the core material, it may be covered with wax, or after the core material is coated with wax,
You can also insert a pin.
【００１８】芯材をろうで被覆する方法は、ディッピン
グにより被覆する方法、または、芯材にピンを挿入して
、芯材の外径よりも大きな内径を有する樹脂型に入れ、
芯材と樹脂型との隙間にろうを流し込むことにより、芯
材の表面をろうで被覆する方法等が好ましい。この場合
、樹脂型の樹脂材料は、型取り時に流動性を有し、型取
り後に硬化でき、硬化させることにより寸法が変わらな
いものであって、しかも、ある程度の硬度を有していて
、１００ μｍ程度の寸法精度を維持できるものが用い
られる。The core material can be coated with wax by dipping, or by inserting a pin into the core material and placing it in a resin mold having an inner diameter larger than the outer diameter of the core material.
A preferred method is to cover the surface of the core material with wax by pouring the wax into the gap between the core material and the resin mold. In this case, the resin material for the resin mold has fluidity at the time of molding, can be hardened after molding, does not change its dimensions by hardening, and has a certain degree of hardness. A material that can maintain dimensional accuracy on the order of μm is used.
【００１９】このようにしてろうで被覆された芯材を、
石膏で埋設して固めた後、加熱してろうを流し出し、芯
材がピンを介して内部空間に支持された石膏型を作る。
なお、石膏型には、ろうを流し出すための孔と、溶融状
態の貴金属を流し込むための孔とを形成しておく。[0019] The core material coated with wax in this way is
After it is buried in plaster and hardened, the wax is heated to flow out, creating a plaster mold with the core material supported in the internal space via pins. Note that the plaster mold has holes for pouring out the wax and holes for pouring the molten precious metal.
【００２０】次いで、この石膏型の内部空間に、ピンと
同材質の貴金属を溶融状態で流し込み、冷却して固化す
る。芯材は、石膏型の内部空間にろうの厚さに相当する
１００μｍ以上の隙間を介して支持されているので、貴
金属がこの隙間に流れ込んで、芯材の表面に厚さ１００
μｍ以上の貴金属被膜が形成される。Next, a precious metal of the same material as the pin is poured in a molten state into the inner space of this plaster mold, and is cooled and solidified. The core material is supported in the internal space of the plaster mold through a gap of 100 μm or more, which corresponds to the thickness of the wax, so the precious metal flows into this gap and forms a 100 μm or more thick layer on the surface of the core material.
A noble metal coating with a diameter of μm or more is formed.
【００２１】その後、石膏型を砕いて貴金属の被膜が形
成された芯材を取り出す。すると、芯材の表面が貴金属
被膜で覆われ、２個以上の貴金属のピンが突き出た状態
の鋳込み成形物が得られる。[0021] Thereafter, the plaster mold is crushed and the core material coated with the noble metal is taken out. Then, a cast molded product is obtained in which the surface of the core material is covered with a noble metal coating and two or more noble metal pins protrude.
【００２２】この鋳込み成形物の表面を研磨すると、所
定形状をなす金属の芯材の表面を覆うように、厚さ１０
０ μｍ以上の貴金属被膜が形成され、芯材の表面に形
成された２個以上の孔に前記貴金属が入り込んでいる本
発明の装飾具が得られる。When the surface of this cast molded product is polished, it is polished to a thickness of 10 mm to cover the surface of the metal core material having a predetermined shape.
A decorative tool of the present invention is obtained in which a noble metal coating of 0 μm or more is formed and the noble metal enters two or more holes formed on the surface of the core material.
【００２３】[0023]
【作用】本発明の装飾具は、所定形状をなす金属の芯材
の表面に、鋳造により貴金属被膜を形成するので、三次
元的に複雑な形状のものにも、１００ μｍ以上の厚い
貴金属被膜を形成することができる。[Function] The decorative tool of the present invention forms a precious metal coating by casting on the surface of a metal core material having a predetermined shape, so even if the ornament has a three-dimensionally complex shape, a thick precious metal coating of 100 μm or more can be applied. can be formed.
【００２４】そして、所定形状をなす金属の芯材の表面
を覆うように、厚さ１００ μｍ以上の厚い貴金属被膜
が形成されているので、長期間使用しても摩擦により貴
金属被膜が剥れてしまうことはほとんどなく、また、所
定期間使用して微小な傷が付き貴金属特有の輝きが減少
した場合、表面を研磨して再生することもできる。した
がって、貴金属単一で製造した装飾具と同様の外観を有
し、耐久性も貴金属単一で製造した装飾具とほとんど変
わらないものを、安価に製造することができる。[0024] Since a thick precious metal coating with a thickness of 100 μm or more is formed to cover the surface of the metal core material having a predetermined shape, the precious metal coating will not peel off due to friction even after long-term use. It is almost impossible to put it away, and if it becomes slightly scratched and loses its characteristic shine due to precious metals after being used for a certain period of time, the surface can be polished and regenerated. Therefore, it is possible to manufacture at a low cost an item that has the same appearance as a decorative item made from a single noble metal and has almost the same durability as a decorative item made from a single noble metal.
【００２５】本発明の装飾具は、芯材としてステンレス
、真鍮等、被膜を形成する貴金属の比重に近い金属を用
いるので、貴金属被膜を形成した後の重量感が、貴金属
単一で製造したものと類似したものとなり、外観だけで
なく、重量感も貴金属単一で製造したものと類似したも
のとなる。[0025] Since the decorative tool of the present invention uses a metal such as stainless steel or brass as the core material, which has a specific gravity close to that of the precious metal that forms the coating, the weight after forming the precious metal coating is similar to that of a product made of only precious metal. Not only the appearance but also the weight feel is similar to that made of only precious metal.
【００２６】また、石膏型中の内部空間に、芯材を支持
するためのピンを、表面を被覆する貴金属と同材質のも
のとしたので、最後に装飾具の表面を研磨するときに、
ピンの突出部を除去するだけで、均一な貴金属被膜とな
る。Furthermore, since the pins for supporting the core material in the internal space of the plaster mold are made of the same material as the precious metal covering the surface, when the surface of the decorative tool is finally polished,
Just by removing the protruding parts of the pins, a uniform precious metal coating can be obtained.
【００２７】[0027]
実施例１
図１〜図６には、本発明の装飾品の鋳造方法の一実施例
が示されている。Embodiment 1 FIGS. 1 to 6 show an embodiment of the decorative article casting method of the present invention.
【００２８】まず、ステンレスからなる芯材１１の両側
に、図１に示すように左右対称に孔１２を４個形成した
。First, four holes 12 were formed symmetrically on both sides of a core material 11 made of stainless steel, as shown in FIG.
【００２９】次に、図２に示すように、孔１２にそれぞ
れ４本の金製のピン１３を挿入し、ディッピングにより
、厚さ２００ μｍのろうの被膜１４を形成した。Next, as shown in FIG. 2, four gold pins 13 were inserted into each of the holes 12, and a wax coating 14 with a thickness of 200 μm was formed by dipping.
【００３０】ろうの被膜１４で被覆された芯材１１を石
膏で埋設し、ろうを流し出し、溶融状態の金を流し込む
ための孔１７を形成した後、固めて石膏型１５を作った
。その後、加熱してろうの被膜１４を溶融状態にして孔
１７から流し出して、図４に示すように、芯材１１がピ
ン１３を介して、石膏型１５の内部空間に、内壁に対し
て２００ μｍの隙間を設けて、支持された状態とした
。The core material 11 covered with the wax film 14 was buried in plaster, the wax was poured out, holes 17 were formed for pouring the molten gold, and the core material 11 was hardened to form a plaster mold 15. Thereafter, the wax coating 14 is melted by heating and poured out from the hole 17, and the core material 11 is passed through the pin 13 into the inner space of the plaster mold 15 against the inner wall, as shown in FIG. A gap of 200 μm was provided to provide a supported state.
【００３１】次いで、この石膏型１５の内部空間に、孔
１７から、ピン１３と同材質の貴金属である金を溶融状
態で流し込み、冷却して固化した。金は、石膏型１５の
内壁と芯材１１との隙間に流れ込み、芯材１１の表面を
覆って固化される。Next, gold, which is a noble metal made of the same material as the pin 13, was poured in a molten state into the inner space of the plaster mold 15 through the hole 17, and was cooled and solidified. The gold flows into the gap between the inner wall of the plaster mold 15 and the core material 11, covers the surface of the core material 11, and is solidified.
【００３２】金が完全に固化した後、石膏型１５を砕い
て、ピン１３と、孔１７に流れた金の部分が突出した金
の被膜１８が形成された鋳込み成型物１９を取り出した
。After the gold had completely solidified, the plaster mold 15 was crushed to take out the pin 13 and the cast molding 19 on which the gold coating 18 from which the gold that had flowed into the hole 17 was protruded was formed.
【００３３】この鋳込み成形物１９から突出部を除去し
、表面を研磨して、ステンレスの芯材１１の表面を覆う
ように、厚さ２００ μｍの金被膜１８が形成され、芯
材１１の表面に形成された４個の孔１３に金が入り込ん
でいるベルトのバックル２０を得た。The protrusions are removed from this cast molding 19 and the surface is polished to form a gold coating 18 with a thickness of 200 μm so as to cover the surface of the stainless steel core material 11. A belt buckle 20 was obtained in which gold was inserted into four holes 13 formed in the belt.
【００３４】得られたベルトのバックル２０は、金だけ
で製造したバックルと同様の外観であり、重量感も金製
のものと類似していた。また、金被膜１８が十分な厚さ
を有しているので、ベルトのバックル２０として使用し
ても十分な耐久性が得られ、表面の金被膜１８が剥れて
しまうことはなかった。The resulting belt buckle 20 had the same appearance as a buckle made only of gold, and the weight was similar to that of a buckle made of gold. Moreover, since the gold coating 18 had a sufficient thickness, sufficient durability was obtained even when used as a belt buckle 20, and the gold coating 18 on the surface did not peel off.
【００３５】実施例２
図７〜８には、本発明の装飾具の鋳造方法による他の実
施例が示されている。Embodiment 2 FIGS. 7 and 8 show another embodiment of the decorative tool casting method of the present invention.
【００３６】実施例１で得られた、図５に示される、芯
材１１の表面に厚さ２００ μｍの金被膜１８が形成さ
れ、ピン１３と、孔１７に流れた金の部分が突出した鋳
込み成型物１９を原形として用い、図７に示すように未
硬化のエポキシ樹脂に埋設し、硬化させて樹脂型２５を
形成した後、常法により上型と下型とに切り開いて原形
を取り出した。A gold coating 18 with a thickness of 200 μm was formed on the surface of the core material 11 obtained in Example 1 and shown in FIG. Using the cast molded product 19 as a master mold, as shown in FIG. 7, it is embedded in uncured epoxy resin and cured to form a resin mold 25, and then cut into an upper mold and a lower mold by a conventional method to take out the master mold. Ta.
【００３７】実施例１の図１と同様に、ステンレスから
なる芯材１１の両側に孔１２を４個形成し、これらの孔
１２に白金からなるピン２３をそれぞれ挿入した。図８
に示すように、この芯材１１をピン２３を介して、上記
で得られた樹脂型２５の内部空間に設置した。樹脂型２
５を閉じて、孔２６から、芯材１１と樹脂型２５との隙
間に溶融したろうを流し込み、冷却して、芯材１１の表
面に厚さ２００ μｍのろうの被膜が形成され、白金製
のピン２３が突出したろう型を形成した。Similar to FIG. 1 of Example 1, four holes 12 were formed on both sides of the core material 11 made of stainless steel, and pins 23 made of platinum were inserted into these holes 12, respectively. Figure 8
As shown in FIG. 2, this core material 11 was placed in the interior space of the resin mold 25 obtained above via pins 23. Resin mold 2
5 is closed, molten wax is poured into the gap between the core material 11 and the resin mold 25 through the hole 26, and cooled to form a wax coating with a thickness of 200 μm on the surface of the core material 11. The pin 23 formed a protruding wax pattern.
【００３８】こうして得られたろう型を石膏に埋没し、
金を白金に替え、後は実施例１と同様にして、ステンレ
スの芯材１１の表面を覆うように、厚さ２００μｍの白
金被膜が形成され、芯材１１の表面に形成された４個の
孔１３に白金が入り込んでいるベルトのバックルを得た
。[0038] The wax mold thus obtained was embedded in plaster,
After replacing gold with platinum, the rest was carried out in the same manner as in Example 1. A platinum film with a thickness of 200 μm was formed so as to cover the surface of the stainless steel core material 11. A belt buckle in which platinum was inserted into hole 13 was obtained.
【００３９】得られたベルトのバックルは、白金だけで
製造したバックルと同様の外観であり、重量感も白金製
のものと類似していた。また、長期間使用しても十分な
耐久性を有していた。The resulting belt buckle had an appearance similar to that of a buckle made only of platinum, and a weight feeling similar to that of a buckle made of platinum. Moreover, it had sufficient durability even after long-term use.
【００４０】[0040]
【発明の効果】以上説明したように、本発明によれば、
金属からなる芯材の表面に、厚い貴金属被膜を形成する
ことができる。したがって、本発明の装飾具は、外観は
貴金属単一で製造されたものと変わらず、また、重量感
も貴金属単一で製造したものに類似しており、長期間使
用後も貴金属被膜が剥れてしまうことがなく、所定期間
使用後、表面に微小な傷等が生じた場合には研磨するこ
ともできる。また、芯材は安価な金属を用いるので、貴
金属単一で製造したのもと比較して、非常に安価に製造
することができる。更に、この貴金属被膜は、鋳造によ
り形成するので、三次元的に複雑な形状のものにも、容
易に、厚い貴金属被膜を形成することができる。[Effects of the Invention] As explained above, according to the present invention,
A thick noble metal coating can be formed on the surface of a core material made of metal. Therefore, the decorative tool of the present invention has an appearance that is the same as one made from only precious metals, a feeling of weight similar to one made from only precious metals, and the precious metal coating does not peel off even after long-term use. If there are any minute scratches on the surface after using it for a certain period of time, it can be polished. In addition, since the core material is made of an inexpensive metal, it can be manufactured at a much lower cost than a core material made of only noble metal. Furthermore, since this noble metal coating is formed by casting, a thick noble metal coating can be easily formed even on a three-dimensionally complex shape.
【図１】本発明の一実施例における装飾具に用いる表面
に孔を形成した芯材を示す断面図である。FIG. 1 is a sectional view showing a core material with holes formed on the surface used in a decorative tool according to an embodiment of the present invention.
【図２】図１に示す芯材にピンを挿入し、ろうの被膜を
形成したろう型を示す断面図である。FIG. 2 is a sectional view showing a wax mold in which a pin is inserted into the core material shown in FIG. 1 and a wax coating is formed.
【図３】図２に示すろう型を、石膏に埋没した状態を示
す断面図である。FIG. 3 is a sectional view showing the wax mold shown in FIG. 2 in a state embedded in plaster.
【図４】図３に示す石膏に埋没されたろう型のろうを流
しだして得られる石膏型の断面図である。4 is a cross-sectional view of a plaster mold obtained by pouring out wax from the wax mold embedded in plaster shown in FIG. 3; FIG.
【図５】本発明の一実施例における装飾具の鋳込み成形
物を示す断面図である。FIG. 5 is a sectional view showing a cast molded ornament in one embodiment of the present invention.
【図６】同装飾具を示す断面図である。FIG. 6 is a sectional view showing the decorative tool.
【図７】本発明の他の実施例における装飾具の原形を用
いて樹脂型を形成する状態を示す断面図である。FIG. 7 is a cross-sectional view showing a state in which a resin mold is formed using the original shape of a decorative tool in another embodiment of the present invention.
【図８】同装飾具の芯材をピンを介して樹脂型の内部空
間に保持した状態を示す断面図である。FIG. 8 is a sectional view showing a state in which the core material of the decorative tool is held in the internal space of the resin mold via a pin.
１１ 芯材 １２ 孔 １３ 金のピン １４ ろうの被膜 １５ 石膏型 １７ 孔 １８ 金被膜 １９ 鋳込み成形物 ２０ ベルトのバックル ２３ 白金のピン ２５ 樹脂型 ２６ 孔 11 Core material 12 holes 13 Gold pin 14 Wax coating 15 Plaster mold 17 Hole 18 Gold coating 19 Cast molded product 20 Belt buckle 23 Platinum pin 25 Resin mold 26 holes
Claims (4)
うように、厚さ１００ μｍ以上の貴金属被膜が形成さ
れ、前記芯材の表面に形成された２個以上の孔に前記貴
金属が入り込んでいることを特徴とする装飾具。1. A noble metal coating having a thickness of 100 μm or more is formed to cover the surface of a metal core material having a predetermined shape, and the noble metal is formed in two or more holes formed on the surface of the core material. A decorative item characterized by its intrusion.
を有する金属の芯材を形成する工程と、前記芯材の孔に
貴金属のピンを挿入し、かつ、前記芯材の表面にろうを
厚さ１００ μｍ以上で被覆する工程と、前記ろうで被
覆された前記芯材を石膏で埋設して固めた後、加熱して
前記ろうを流し出し、前記芯材が前記ピンを介して内部
空間に支持された石膏型を作る工程と、この石膏型の内
部空間に前記ピンと同材質の貴金属を溶融状態で流し込
み、冷却して固化する工程と、前記石膏型を砕いて貴金
属の被膜が形成された前記芯材を取り出す工程と、この
鋳込み成形物の表面を研磨する工程とを含むことを特徴
とする装飾具の鋳造方法。2. Forming a metal core material having a predetermined shape and having two or more holes on the surface, inserting a noble metal pin into the hole of the core material, and forming a metal core material on the surface of the core material. A step of coating the wax with a thickness of 100 μm or more, and embedding the core material covered with the wax with plaster and hardening it, heating it to pour out the wax, and allowing the core material to pass through the pins. A process of making a plaster mold supported in the internal space, a process of pouring a molten precious metal of the same material as the pin into the internal space of the plaster mold, cooling and solidifying it, and crushing the plaster mold to form a precious metal coating. A method for casting a decorative tool, comprising the steps of: taking out the formed core material; and polishing the surface of the cast product.
ングにより被覆する請求項２記載の装飾具の鋳造方法。3. The method for casting a decorative tool according to claim 2, wherein the surface of the core material is coated with the wax by dipping.
芯材の外径よりも大きな内径を有する樹脂型に入れ、芯
材と樹脂型との隙間にろうを流し込むことにより、前記
芯材の表面を前記ろうで被覆する請求項２記載の装飾具
の鋳造方法。4. The pin is inserted into the core material, the core material is placed in a resin mold having an inner diameter larger than the outer diameter of the core material, and wax is poured into the gap between the core material and the resin mold. 3. The method for casting a decorative tool according to claim 2, wherein the surface of the material is coated with the wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14560991A JPH04344848A (en) | 1991-05-21 | 1991-05-21 | Accessory and its casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14560991A JPH04344848A (en) | 1991-05-21 | 1991-05-21 | Accessory and its casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04344848A true JPH04344848A (en) | 1992-12-01 |
Family
ID=15388999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14560991A Pending JPH04344848A (en) | 1991-05-21 | 1991-05-21 | Accessory and its casting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04344848A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030078246A (en) * | 2002-03-28 | 2003-10-08 | (주) 나우젬 | Casting method of joined multi color ornaments and Castinged multi color ornaments |
| CN110479961A (en) * | 2019-09-24 | 2019-11-22 | 龙南新晶钛业有限公司 | A kind of technique of titanium alloy combination casting |
-
1991
- 1991-05-21 JP JP14560991A patent/JPH04344848A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030078246A (en) * | 2002-03-28 | 2003-10-08 | (주) 나우젬 | Casting method of joined multi color ornaments and Castinged multi color ornaments |
| CN110479961A (en) * | 2019-09-24 | 2019-11-22 | 龙南新晶钛业有限公司 | A kind of technique of titanium alloy combination casting |
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