JPH01275132A - Thin composite noble metal plate - Google Patents

Abstract

PURPOSE:To prevent deformation, damage, and to improve an external appearance by allowing a reinforcing plate to adhere to at least one side face of a thin plate made of noble metal, and specifying its thickness to a specific range. CONSTITUTION:A thin noble metal composite plate of this invention is made by allowing a reinforcing plate 3 to adhere to either one side face of a thin plate 1 having 0.005-0.3mm of thickness and made of noble metal or ally of noble metal, and its thickness is 0.015-3.0mm. Thus, a deformation, a damage can be prevented, and a cardlike decorative article having a relatively wide area and a good external appearance can be provided even with about 3 grams of noble metal. A picture character 4 made of an opaque part is provided on the rear face of the plate 3, i.e, the adhering face to the plate 1.

Description

[Detailed Description of the Invention] "Industrial Application Field" This invention applies to precious metals such as gold, silver, and platinum, which can be easily used as souvenirs and gifts, and which also have decorative value. This invention relates to card-shaped thin-walled precious metal composite plates mainly composed of.

"Prior Art" Conventionally, small gold bullion has been given a pattern on its surface by being engraved using a metal mold, similar to that seen on coins and medals.

Incidentally, in recent years, as gold has become more popular, the units in which it is handled have become smaller and it has come to be bought and sold in duram units. However, such small amounts of gold are press-molded to a certain thickness to make coins and medals, but the shape is very small, so it does not look good and is not effective as a souvenir or gift. The problem was that it was thin.

Therefore, it may be possible to roll the gold ingot into a thin plate, and then mark the surface of the plate by engraving or other means to add patterns or letters depending on the purpose.

In this case, for example, if 1.0 g of gold is rolled out to a thickness of 15 μm, it will be about the size of a business card, and will have a sufficiently attractive appearance, and the pattern and letters will be easy to distinguish, making it suitable for use as gold-recorded items.

``Problems to be Solved by the Invention'' However, as mentioned above, thin plates made by rolling gold ingots to a thickness of several tens of micrometers have low strength and are easily deformed or damaged.
Even if the surface of the thin plate is marked by engraving or the like, it is practically impossible to use it as a souvenir in the form of a card, a gift, or the like.

In addition, in order to increase the strength, the thickness of the thin plate is reduced to 0, for example.
, 5xrx, approximately 34g of gold is required to obtain a card-like item the size of a business card, making it extremely expensive and unsuitable for easy use as a souvenir or gift. It is.

"Means for Solving the Problems" In order to solve the above problems, the present invention provides a thin plate made of a noble metal or an alloy of noble metals having a thickness of 0.005 to 0.33IJI, and at least one surface thereof. A reinforcing plate is joined to the plate, and the plate thickness is 0.015 to 3. It was made into Oix.

If the plate thickness is less than O, O15am, the strength will be low even if reinforced with a reinforcing plate, and if the plate thickness exceeds 3.0xx, even the thinnest hli stiff plate will be 2.7xi, and this reinforcing plate or transparent decoration In the case of a board, pictographs appear distorted due to uneven thickness of the transparent part.

If the thickness of the thin plate is less than 0.005 iu, it will be difficult to manufacture the thin plate due to rolling technology, and the thin plate will be easily damaged when marking. Gram gold nuggets would have a smaller area and would not look as good.

"Function" The thin precious metal composite plate of this invention has a thickness of 0.0
A reinforcing plate is bonded to at least one side of a thin plate made of a noble metal or an alloy of a noble metal with a thickness of 0.05 to 0.3 mm,
And the plate thickness is 0.015~3. Since I made it Omx, the transformation,
Damage can be prevented, and therefore, even if the precious metal weighs only a few grams, it is possible to provide an attractive card-shaped ornament with a relatively large area (about the size of a business card).

Furthermore, since the thickness of the thin noble metal composite plate and the thickness of the thin plate are set as described above, the thickness of the transparent decorative plate (the thickness of the transparent portion) is less than 2.7 mm. Therefore, it is possible to suppress unevenness in the thickness of the transparent portion and the intrusion of air, etc., so that the pictographs applied to the transparent decorative plate do not appear distorted.

"Embodiment" FIGS. 1 to 3 show an embodiment of the thin precious metal composite plate of the present invention, and in the figures, the reference numeral l indicates a thin plate. This thin plate l is made by repeatedly rolling a gold ingot with a purity of 99.99% or higher to a thickness of 60 μm, and cutting it into business card-sized pieces (
Heavyffl: 3. Og).

As shown in FIG. 1, markings 2 such as letters, symbols, patterns, etc. are provided on one surface of the thin plate 1 using stamps. The thin plate 1 becomes thinner at the place where the marking is made, and thereby the marking 2 appears, but if the thickness is 60 μm, there will be no holes and the aesthetics will not be spoiled. For engraving, use a suitable punch, etc.
Any figure, pattern, character, portrait, or certification mark can be added to the thin board ■. This marking may be applied not only by engraving, but also by means of a laser beam, for example.
In this case, marking can be done easily, quickly, and inexpensively.

Although there are no particular restrictions on the content of the display on the above-mentioned thin plate, it is appropriate to include the material and quality of precious metals, heavy debt, etc. as part of the display, and these should be assigned for each purpose of the product. It is possible to uniformly apply the mark in advance in addition to the mark.

In addition, on the other side of the thin plate 1, a reinforcing plate 3 having the same shape as the thin plate 1 is provided.
are superimposed. As shown in FIG. 2, this reinforcing plate (transparent decorative plate) 3 is a transparent plate made of resin such as acrylic or glass, and has a thickness of 0.5 mm.
It is set to 05-2.5H. Note that the material of the reinforcing plate 3 does not necessarily have to be a highly rigid wood, and may be a certain degree of flexible wood.

On the back surface of the reinforcing plate 3, that is, on the joint surface with the thin plate 1, a pictogram 4 made of an opaque part is provided. This pictogram 4 is drawn by an appropriate method such as paint application, relief engraving, etching, or a combination of these methods, but since it is visually observed from the surface side of the reinforcing plate 3, it is drawn as a mirror image reflected on a mirror. ing. Further, the opaque part may be used as the pictogram 4 part, the background part of the pictogram, or the pictogram part may be manipulated to expose gold in that part. The contents of the pictographs displayed on this reinforcing plate 3 are not particularly limited, but for example, in the case of wedding gifts, the names of the bride and groom are often displayed differently depending on the loft ordered. However, since this display is not displayed on a thin plate 1 but on an acrylic plate or the like, it goes without saying that such high-mix, low-volume production can be carried out relatively easily.

Then, the thin plate 1 and the reinforcement ti, 3 are covered with a transparent protective film 6.
A thin noble metal composite plate is manufactured by laminating and coating the metal. The thickness of the manufactured thin precious metal composite plate is 0.015 to 3. It is set to ORx.

According to the thin precious metal composite plate having the above structure, since the thin plate 1 is reinforced with the reinforcing plate 3 and the plate thickness is set to 0.0151 or more, it is not likely to be damaged or bent during transportation or manual transfer. This situation is prevented, and the product value is not impaired.

In addition, the thickness of the thin precious metal composite plate is 0.015 to 3.0i.
Since the thickness of the thin plate l is set to 0.005 to 0°3 and π, the total thickness of the reinforcing plate (transparent decorative plate) 3 and the protective film 6 (thickness of the transparent part) is It becomes less than .7rtty. Therefore, it is possible to suppress unevenness in the thickness of the transparent portion and the intrusion of air, etc., so that the pictograph 4 applied to the back surface of the reinforcing plate 3 does not appear distorted.

Furthermore, since the pictograms 4 applied to the reinforcing plate 3 appear to stand out against the gold color background, a better decorative effect can be obtained.

In addition, since the thin plate 1 is made of gold with a purity of 99.99% or more, it can be exchanged for cash.

FIG. 4 shows another embodiment of the invention. The thin precious metal composite plate shown in this figure has a thickness of 0.0+5~
Q, 3 xn, thickness of thin plate 1 is 0.005 to 0.3
H, and the thin plate l is connected to the pair of reinforcing plates 3
It has a structure in which it is sandwiched between a and 3 b (thickness: 0.05 to 0.25 ix). In this case, the content to be displayed on the thin plate 1 may be displayed on the reinforcing plates 3a, 3b, and there is little need to stamp the thin plate 1. It should be noted that the materials and markings of the reinforcing plates 3a and 3b are not particularly different from those described above.

In this embodiment, the reinforcement, decoration, and
This further strengthens the display effect, especially the thin plate 1.
It is no longer effective when it becomes even thinner (if Ig gold is rolled into the size of a business card, the thickness will be 15 to 20 μm).

Moreover, it goes without saying that the same effects as in the first embodiment can be obtained.

In the above embodiment, gold is used as the material for the thin plate 1, but the material is not limited to this, and suitable materials such as silver and platinum, or alloys thereof may also be used.

"Effects of the Invention" As explained above, according to the thin noble metal composite plate of the present invention, at least one surface of the thin plate made of a noble metal or an alloy of noble metals has a thickness of 0005 to 0.3I.
Since the li-strong material is bonded and the plate thickness is set to 0.015 to 3.0H, deformation and damage can be prevented.

Therefore, even if the precious metal weighs only a few grams, it is possible to provide an attractive card-shaped ornament with a relatively large area (about the size of a business card).

In addition, the thickness of the thin precious metal composite plate is 0.015 to 3.01.
, and the thickness of the thin plate was set to 0.005 to 0.3 Hm, so the thickness of the transparent decorative plate (thickness of the transparent part) was 2.7
becomes less than 1. Therefore, it is possible to suppress unevenness in the thickness of the transparent portion and the intrusion of air, etc., so that the pictographs temporarily decorated with transparent decoration do not appear distorted.

Furthermore, since the pictograms applied to the transparent decorative plate appear to stand out against the background of the color of the precious metal, an even better decorative effect can be obtained.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the thin noble metal composite plate of the present invention, FIG. 1 is a plan view of the thin plate, and FIG. 2 is a plan view of the thin plate.
The figure is a plan view of the reinforcing plate (transparent decorative plate), FIG. 3 is a sectional view of the composite plate, and FIG. 4 is a sectional view of the composite plate showing another embodiment. l...Thin plate, 3.3a, 3b...Reinforcement plate (transparent decorative plate), 4
...Emoji.

Claims (3)

[Claims] (1) A thin plate made of a noble metal or an alloy of noble metals, and a reinforcing plate bonded to at least one surface of the thin plate, and the plate thickness is 0.015 to 3.0 mm. Thin-walled precious metal composite plate. (2) The thin precious metal composite plate according to claim 1, wherein the thin plate has a thickness of 0.005 to 0.3 mm. (3) The thin precious metal composite plate according to claim 1 or 2, wherein the reinforcing plate is a transparent decorative plate with partially opaque pictographs.