WO1992002157A1

WO1992002157A1 - Metallic mesh for ornamental goods and method of manufacture thereof

Info

Publication number: WO1992002157A1
Application number: PCT/JP1990/000975
Authority: WO
Inventors: Fumio Noda; Minoru Nakazato; Noboru Kogure; Masatoshi Fukushima
Original assignee: Mitsubishi Materials Corporation
Priority date: 1990-07-31
Filing date: 1990-07-31
Publication date: 1992-02-20
Also published as: KR930700025A; EP0495100A1; KR940009120B1; EP0495100A4

Abstract

A metallic mesh (1) to be used as a material for ornamental goods such as brooch, pendant, earring, and so on, in which a large number of fine metallic wires (A, B) are stacked in the direction of the thickness of a mass thereof while randomly intersecting each other and the intersections of the wires (A, B) are pressed or fixed to each other, whereby some patterns created by the wires (A, B) themselves appear on the surface of the mass and a multiplicity of vacant spaces (3) in various shapes and sizes are randomly formed between the wires (A, B). A method of manufacturing the metallic mesh (1) comprises collecting a large number of the wires (A, B) and pressing them into a plate as well as pressing or fixing them to be bonded to each other at the intersections of the wires.

Description

Description Metallic mesh for decorative articles and its manufacturing method

TECHNICAL FIELD The present invention relates to a metal method suitable for use as a material for decorative articles and a method for producing the same-background art broaches, pendants, and earpieces. Various kinds of materials are used as materials for decorative items such as gold, silver, platinum, and other precious metals that can be used to produce large, luxurious design items. Is commonly used. However, if these precious metals were used intact to produce large ornaments, the product would become an extremely expensive product if it was used. However, these precious metals have a high specific gravity, so that the product weight becomes excessively large, which is inconvenient for practical use and lacks practicality. There is a problem that it becomes something. Also, it found if noble metal Ru have use in innocent until or, in particular its thickness to One Do rather Ku to also work with the cutting and bending such thickness rather that Do or earthenware pots also Ru Nodea _c DISCLOSURE OF THE INVENTION The present invention can produce a large-sized, lightweight and relatively inexpensive decorative article, and can be easily processed, and has a unique appearance. The purpose of the present invention is to provide a metal mesh which is presented and is suitable for use as a material of a decorative article, and a method for producing the same. In order to achieve this, the metal mesh according to the present invention has a structure in which a large number of fine metal wires are stacked in the thickness direction in a state of intersecting randomly, and the fine metal wires are crossed with each other. The part is not crimped or fixed, and a pattern is formed on the surface by the thin metal wires themselves, and the shape and size between the thin metal wires are formed. It is characterized in that a large number of voids having different structures are formed randomly.

It is desirable to use a noble metal such as gold, silver, or platinum or an alloy containing a noble metal as the above metal wire-and a flat surface with a glossy surface. It is conceivable to use a thin metal wire having a non-circular cross-sectional shape.

Further, in the method for manufacturing a metal mesh according to the present invention, a large number of thin metal wires are integrated, and the integrated thin metal wires are formed into a plate shape by brazing. In this case, the cross section of each thin metal wire is crimped, and in this case, the cross section of the crimped thin metal wire may be further fixed. . '

In addition, a large number of fine metal wires are integrated, and the -δ-Prestressing is achieved by contacting the cross section of each thin metal wire with the plate-like shape, and then fixing the cross section. In the case of fixing the cross section between thin metal wires, the cross section is ripened or heated while applying pressure to perform diffusion bonding, or there is noble metal plating. Is considered to be fixed by applying resin coating, and in the case of being fixed by diffusion bonding, the resin coating is previously applied to the thin metal wire. You may want to keep a tent:

Furthermore, in any case, it is desirable to pre-curl the fine metal wire. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing one embodiment of a decorative article manufactured using a metal mesh according to the present invention as a raw material.

Fig. 2 and Fig. 3 show the shapes of fine metal wires.

Fig. 4 is a diagram showing a state where many thin metal wires are integrated.

Fig. 5 is an enlarged sectional view of the formed metal mesh-Fig. 6 is an enlarged view of the formed metal mesh c,

FIG. 7 is an enlarged cross-sectional view showing a state where a flat surface is formed on the surface of the metal mesh. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a decorative product formed by processing a metal mesh 1 according to a preferred embodiment of the present invention into a heart shape, and surrounding the frame with a frame 2. It is.

The metal mesh 1 is stacked in the thickness direction with a large number of fine metal wires A and B intersecting randomly, and the thin metal wires A,

B is formed by the intersecting portions of the metal wires B being fixed together, and the pattern is formed on the surface by the fine metal wires A and B themselves, and the metal A large number of voids 3 having different shapes and sizes are formed between the fine wires A and B.

A more specific structure of the metal mesh will be described in detail with reference to FIG. 2 or FIG. 7 together with an example of a method of manufacturing the metal mesh.

The metal mesh 1 is manufactured using two kinds of fine metal wires A and B as shown in FIGS. 2 and 3 as raw materials. These fine metal wires, and Β are precious metals such as gold, silver and platinum, or alloys containing those precious metals (for example, precious metal alloys of 90% platinum and 10% palladium). It is formed by the process and is subjected to a curling process.

The dimensions of the metal wires A and Β may be arbitrary, but for example, the diameter of the metal wire A is about 0.3 ram and the diameter of the metal wire B is about 0.5. It is good. Also, their The length is preferably about several centimeters, but the lengths of the two should be different from each other. Furthermore, it is assumed that the metal wires A and B have different curl shapes, and the metal wire A is provided with a coiled three-dimensional curl, and the metal wire B is provided with a coil. It is also good to apply a ring-shaped flat curl _c .

In order to manufacture the metal mesh 1 by using the two types of fine metal wires A and B as described above, as shown in FIG. In between, many of the above-mentioned metal wires A and B are randomly accumulated to have a height of, for example, about 3 cm. At this time, the porosity of the metal mesh 1 to be formed and the specific gravity thereof are increased by increasing the amount of the fine metal wires A and B used and appropriately adjusting the integration density thereof. the was Ki that _e or out and this to adjust freely, during this, but may be a plurality of metal thin wires a. All Ku this you randomly integrated B, example, if shown in Figure 4 It may be possible to have a certain degree of regularity such as distributing a large amount of the fine metal wires B in the lowermost layer and the uppermost layer, as described above.

Then, by using an appropriate press device (not shown), a large number of fine metal wires A and B accumulated between the pressing members 4 and 4 have a thickness of 0.5 mm to 1.0 mm. that Do and mm degree of thin plate-like or depletion Resusu Ru _c

As a result, the thin metal wires A and B that had been subjected to force processing were crushed and plastically deformed, and intersected randomly as shown in Figs. 5 and 6. When they are overlapped with each other, they are entangled and entangled with each other, and at the same time, the intersection of the thin metal wires A and B is crimped and mechanically crimped. Therefore, voids 3 having different shapes and sizes are randomly formed between the metal wires A and B, and the metal — The first mesh 1 is manufactured.-On the surface of the metal mesh 1, a large number of patterns formed by the fine metal wires A and B themselves are irregularly formed. A unique appearance can be obtained, such as a fine pongee carving.

As will be apparent from the above description, the patterns and voids 3 on the surface of the metal mesh 1 are formed by being controlled almost by accident. Depending on the curl shape to be applied to B and the state of the accumulation of fine metal wires A.B_ in front of the press, the shape of the patterns and voids 3 and the size of them are to some extent. It can be set. For example, as described above, a large number of thin metal wires B with a flat curl are distributed on the lowermost and uppermost layers, resulting in a three-dimensional rolling process. When a large number of thin metal wires A subjected to the treatment are accumulated and pressed in a state of being distributed in a large amount between them, the metal fine wires A are crushed in a plane and large. The metal wire B deforms too much, but the metal wire B deforms too much, and the ring-shaped pattern of the metal wire B is connected by the small diameter metal wire A. It will have the appearance of being embossed on the surface.

In the metal mesh 1 formed as described above, since the intersections of the fine metal wires A and B are crimped, the metal mesh 1 can be used as it is as a material for the decorative article in this state. However, in order to integrate the fine metal wires A and B more firmly, the cross section is diffused by heating the metal mesh 1. It is desirable to join.

In this case, it is advisable to heat the metal mesh 1 by inserting it into an appropriate heating device until the metal mesh 1 is sandwiched between the pressing members 4 and 4. The upper limit of the ripening temperature is the melting point temperature of the material of the fine metal wires A and B, and it is preferable that the ripening temperature be slightly lower. If the heating temperature is equal to or higher than the melting point, the fine wires A and B melt and the pattern disappears, and the gap 3 is closed, which is an unfavorable force. For example, in the case of the alloy of platinum and palladium exemplified above, the melting temperature is about 1,500 ° C., so that the heating temperature is 1,200 ° C. It should be about 0 ° C. -When performing diffusion bonding as described above, depending on the material of the fine metal wires A and B and the ripening temperature, the cross section is heated while being pressurized. In such a case, the metal mesh 1 is inserted into an appropriate heating device until the metal mesh 1 is sandwiched between the pressing members 4 and 4, and the metal mesh 1 is appropriately inserted into the metal mesh 1. It is advisable to ripen while applying a pressing force.c. If diffusion bonding is performed by applying pressure and heating in this way, start with A: It is good to use a pressurizing and heating device-that is, if the gold and fine wires Λ and B are accumulated between the two pressing throws 4 and, they are loaded into the pressurizing and ripening device. First, press (press) at room temperature, and then continue to perform this press to heat the inside of the device to a high temperature. By doing so, both pressure bonding and diffusion bonding can be performed continuously by one press ripening device, and the working efficiency is good.

In the case of performing diffusion bonding, since heat resistance is required for the pressing plate 4, the material is, for example, carbon graphite or aluminum. It is advisable to use a rip-resistant material of the size of -r, and if the metal complex A.B is platinum or an alloy containing platinum, it is possible to reduce the pressure. If the press plate 4 is used, the reaction between platinum and carbon under high temperature is not preferable, and in this case, the press plate 4 is used as the material. Use a heat-resistant material that does not contain carbon or, if using graphite, spray a release material such as boron nitride on the surface. It is desirable to keep it.

Next, as a finishing step, the above-mentioned metal mesh 1 is cold-rolled to form a flat surface 5 on a convex portion of the surface as shown in FIG. Further, if the surface is puff-polished, the above-mentioned flat surface 5 becomes glossy, and the recesses where the buff cannot contact remain the semi-gloss of the metal wires A and B themselves. As a result, a more varied and favorable appearance can be obtained. These finishing steps may be omitted if unnecessary. Also, instead of cold rolling, the flat surface 5 can be formed by hitting the surface with a hammer or polishing the surface-. Oh Ru and _c its, above the metal main Tsu push from 1 cut to the desired shape was the Ebahaichi bets form, on its periphery. cormorants filtration manufactured separately the full record over arm 2, with -Or, if the frame 2 is formed by embedding, a decorative article as shown in Fig. 5 is completed.

As described above, the metal mesh 1 of the present embodiment has the surface in which the fine metal wires A and B have irregularly formed IS patterns and a large number of voids 3 formed randomly. Because of its unique appearance, it is suitable for use as a new material for decorative items-and this metal mesh! Has a number of voids 3 Therefore, its specific gravity is smaller than that of a solid metal plate.Thus, it is necessary to produce large and luxurious ornaments and reduce the product weight to such a degree that it is practically inconvenient. In addition, the amount of noble metal actually used is small compared to its size, so it can be relatively inexpensive, and it can be a solid metal plate. This method has the advantage that machining such as cutting and bending can be performed easily.

Further, according to the above-described manufacturing method, the above-described metal mesh 1 can be extremely easily manufactured only by accumulating and pressing a large number of fine metal wires A and B. Of course, by applying the curl to the fine metal wires A and B, the pattern formed by them is duplicated, and However, the number of crossovers is remarkably increased as compared with the case of using a linear thin metal wire, so that each thin metal wire can be surely integrated. Have the advantage of

In the above method, the length of the metal wires A and B, the shape of the wire, the shape of the wire, the amount of use, the state of O accumulation before the brass, and the like are appropriately changed. It is possible to freely manufacture metal meshes 1 that have a variety of appearances with different patterns and porosity.

Furthermore, it is not possible with this method to produce a plurality of metal meshes that have exactly the same appearance, but this also requires a rare value. It is an advantageous method of manufacturing materials for decorative items

In the metal mesh of the above-described embodiment, a noble metal was used as the material of the fine metal wire, but any metal or alloy other than the noble metal, such as stainless steel or aluminum, was used. , Copper, etc. can also be used In this case, a metal mesh having the same appearance as that of using a noble metal can be obtained at a very low price.

Also, in the above embodiment, two types of thin metal wires having different shapes, lengths, and curls are used, but it is also possible to use only one type of thin metal wire. It is of course also possible to use many types of metal wires, and not only the diameter, length and curl shape, but also various types of metal wires having different materials, colors and textures. For example, gold and silver) can be freely used in combination. When a plurality of types of fine metal wires of different materials are used and fixed by diffusion bonding, the fixed portion is alloyed and local discoloration occurs. As a result, a product having a complicated appearance can be obtained. For example, when used in a proportion of 75% gold, 20% silver and 5% copper, the bond becomes yellow, 75% gold, 20% palladium and 5% silver. % When used, the bond becomes white, and when used at 75% gold, 5% silver, 20% copper, the bond becomes pink. c

In particular, when a pure copper thin metal wire is used, the metal mesh obtained by press molding is ripened to a predetermined temperature in a large atmosphere (in an oxidizing atmosphere of 11). Thus, the color of the product can be variously changed. For example, pure copper and the heating temperature is Ru extent der 2 0 0 is Tsu Do and C i 0 Ri Do yellow, Tsu Do the heating temperature is Ru 4 0 0 ° C about der and C u ₂ 0 When the heating temperature is about 700 ° C, it becomes Cu0 and black, and when the heating temperature is between them, it becomes orange (mixed color of yellow and red). Or purple (a mixed color of red and black), so that a product of a desired color can be obtained freely. In addition, it is possible to mix fine metal wires with chips, pieces of metal, pieces of metal foil, metal powder, etc., and press them. For example, it is possible to obtain a metal mesh with a more varied pattern and appearance, and to effectively use chips and fragments of precious metals. -In the above embodiment, a thin metal wire having a circular cross section was used, but the cross section of the thin metal wire is not limited to a circle, and may be, for example, a square cross section such as a triangle or a polygon, or an arbitrary cross section such as a star. Various types such as f; shaped cross section, flat tape-shaped cross section, etc. can be used.Furthermore, thin metal wire is twisted, or multiple wires are used. It is also conceivable to use metal wires in which wires are twisted, and such metal wires having various cross-sectional shapes and various forms may be used alone or in an appropriate combination. As a result, the pattern formed by the fine metal wires becomes more varied, and the light reflectance of the surface changes in a complex manner. : :), better than I 'can get out of _c

Also, in the manufacturing method of the above embodiment, a large number of curled metal pong wires are integrated and pressed to crimp the crossing portions of the thin metal wires. In this case, the crossover portion is further fixed as necessary by diffusion bonding, but the manufacturing method of the present invention is not limited to the above-described embodiment. , Various modifications and applications are possible

For example, the force applied to a thin metal wire is not always necessary, and a straight metal wire may be used. C. In that case, a linear pattern is applied. The metal that you have will be available

Also, when the integrated gold wire is to be blown, use a metal wire. The crisscrossing sections may be kept to the extent that they come into contact without crimping, and then the eroded sections may be fixed by appropriate means. As a result, the amount of deformation of each thin metal wire during pressing is small, the specific thickness is large, and therefore the bulky specific gravity is smaller and lighter. -Obtainable.

Further, in the above-described embodiment, the bonding of the crossing portions is performed by diffusion bonding. However, the bonding of the crossing portions is not performed by diffusion bonding. The metal meshes that are in contact with or in contact with each other are fixed to each other by applying metal to the mesh or impregnating with resin. Such a means may be adopted because it can be firmly integrated. A non-precious metal material such as stainless steel or aluminum is used as the thin metal wire, and the resulting metal mesh is subjected to a noble metal plating. Then, if the metal wires are fixed to each other, a product as if the whole is made of precious metal can be obtained. Also, when the metal mesh is impregnated with resin and fixed, even if the fine metal wire is a non-precious metal material, it can be effectively prevented from spreading. It is possible to prevent discoloration (blackening) due to oxidation when the metal wire is made of silver, and it is also possible to use transparent resin or colored resin alone or in combination. Can provide products with a wide variety of appearances

Furthermore, even when thin metal wires are fixed by diffusion bonding, an appropriate resin is coated on the metal wire in advance, and the resin is melted and re-melted. It is also conceivable to fix the fine metal wires by solidifying them. In this case, the fine metal wires are directly This has the advantage that it can be fixed at a sufficiently low temperature and in a short time as compared with the case where it is fixed to a surface. INDUSTRIAL APPLICABILITY As described above in detail, the metal mesh of the present invention has a pattern formed by a fine metal wire on the surface thereof, and the fine metal wire has a fine metal wire pattern. Although many voids with different shapes and sizes are formed randomly between them, they have a unique appearance and are a new material for decorative products. In particular, the use of thin metal wires made of precious metals or alloys containing precious metals makes it possible to produce large and luxurious ornaments lightly and inexpensively. However, there is an advantage that processing is also easy. In addition, by forming a flat surface with gloss on the surface and using a thin metal wire with a non-circular cross section, it is possible to have a more varied and complex pattern. In addition, according to the manufacturing method of the present invention, a large number of fine metal wires are integrated, and the integrated fine metal wires are pressed into a plate shape. Since the cross section of each metal thin wire is crimped, the above-mentioned metal mesh can be extremely easily formed, but a metal mesh having various appearances can be obtained. The effect is that the metal wire can be manufactured freely, and if the cross section of the metal wires is further fixed, each metal wire can be securely formed. the integrated O. this and is that Ki de _c

Also, press the wires so that the intersections of the fine metal wires touch each other. In this case, the same effect as in the above method can be obtained by fixing the cross section after that, and in that case, a metal mesh having a large thickness can be obtained. You.

The bonding of the thin metal wires can be easily performed by diffusion bonding, precious metal plating or resin coating. In particular, a secure bond strength can be obtained, and especially when ripening and expanding while applying pressure, the bonding strength can be further increased by using a diffused joint. The advantage of resin coating is that it can be fixed at a lower temperature and in a shorter time than when metal wires are directly bonded to each other. There is.

In addition, if the fine metal wire is pre-curled, a complicated pattern with a deformed curl shape can be obtained, and compared to the case where a straight metal fine wire is used. and et al whether the number of the crossover portion is增大, the metal bonding strength of from you etc. fine line, advantage cormorants have and be enhanced Ri by the fixing strength · ¾) Ru _c..

Claims

The scope of the claims

1) A metal mesh that is used as a material for ornaments.It is a metal mesh that is stacked in the thickness direction in a state where a large number of metal wires intersect randomly, and these metal wires are The intersections of the two are not crimped or fixed, and a pattern is formed on the surface by the thin metal wires themselves. -A decorative metal mesh characterized in that a large number of voids of different sizes and sizes are not formed randomly.

2. The metal wire for a decorative article according to claim 1, wherein the thin metal wire is made of a noble metal such as gold, silver, or platinum or an alloy containing the noble metal. SHU-

3. The decorative metal deposit according to claim 1 or 2, wherein the glossy flat surface is formed on the surface.

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4. The metal mesh for decorative articles according to claim 1, 2 or 3, wherein the cross-sectional shape of the thin metal wire is non-circular. .

5. This is a method of manufacturing a plate-shaped metal mesh used as a material for decorative items, in which a large number of metal wires are integrated and the metal wires collected from the metal wires are pre-plated. A method of manufacturing a metal mesh for a decorative article, which is characterized in that it is made into a plate shape by sintering and crimps a cross portion of each thin metal wire:

6. Specially fix the cross section of the crimped metal wire further. 5. The method for producing a metal mesh for decorative articles according to claim 5, wherein the method is as follows.

7. This is a method of manufacturing a plate-shaped metal mesh used as a material for decorative items, in which a large number of fine metal wires are integrated and pressed. The production of a metal mesh for decorative articles, which is characterized in that the metal wires are made to contact each other and the intersections of the thin metal wires are brought into contact with each other, and then the intersections are fixed. Method.

8. The metal for decorative articles according to claim 6 or 7, wherein the cross section of the thin metal wires is fixed by heating and diffusion bonding. The method of manufacturing the mesh.

9. The method for manufacturing a metal mesh for decorative articles according to claim 8, wherein the cross section of the thin metal wires is heated while being pressurized.

10. Manufacture of decorative metal mesh according to claims 8 or 9, characterized in that resin coating is applied to the surface of the thin metal wire. Method.

1. Claims 6 or 7, characterized in that the intersections of the thin metal wires are fixed by precious metal plating or resin coating. The method for producing the metal mesh for decorative articles described in the above.

1 2. No claim 5 characterized in that the thin metal wire is subjected to curl processing; and a metal mesh for decorative articles according to any one of 1 to 11. Manufacturing method.