JPH01263100A - Production of metallic ornament with gem particles - Google Patents

Abstract

PURPOSE:To achieve secure and firm fixing of gem particles, by fixing the gem particles in the state of being physically surrounded by first and second plated layers on a surface of a metallic base. CONSTITUTION:A holder 4 with metallic bases 1 fitted thereto in an arranged state is placed a plating vessel 6, and is placed on a bottom part of a pan 10, and diamond abrasive grains 11 as gem particles are scattered to such an extent that the metallic bases 11 are covered with the diamond grains 11. In this condition, a nickel plating treatment is conducted. Only the diamond grains 11 are fixed by a first plated layer 12. The metallic bases 1 are taken out of the vessel 6 together with the holder 4, and are washed to remove unfixed diamond grains 11 therefrom. The metallic bases 1 are placed into another plating vessel, and are subjected to an electroless nickel plating treatment in an electroless nickel plating liquid, thereby providing a plated layer 13 on the plated layer 12. Vinyl adhesive tapes 3 for masking are removed, and finish electroplating with nickel is conducted, followed by washing with water and drying.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing a metal ornament with gem grains.

<Prior art> Traditionally, expensive natural and artificial jewelry has been attached to metal accessories such as eyeglass frames, tie bins, necklaces, brooches, bracelets, rings, cuffs, watch bands, earrings, buckles, etc. It is known that this enhances the decorative effect of metal ornaments.

<Problems to be Solved by the Invention> However, in most of these conventional techniques, relatively large gemstone agglomerates are mechanically fitted onto the surface of metal ornaments. However, the metal ornament itself has become extremely expensive, and the processing of the metal base material itself forming the metal ornament has been complicated. Therefore,
It was not suitable for mass production, and since it was fitted mechanically, there was a risk that the gemstone agglomerates would fall off.

Therefore, recently it has been considered to solve the above conventional problems by attaching relatively small gemstone particles to the surface of metal ornaments, rather than using large gemstone agglomerates. However, until now no effective means have been proposed.

<Means for Solving the Problems> A method for manufacturing a metal ornament with gem grains according to the present invention includes:
This method was proposed to solve the above-mentioned conventional problems, and involves immersing a metal base material formed into a predetermined shape in a plating solution.
The whole stone grains are applied to the surface of the metal base material in the plating solution, and then the whole stone grains are fixed to the surface of the metal base material with a first plating layer formed by electroplating the metal base material. Then, after removing all the stone grains that were not fixed in the first plating layer, the metal base material is further immersed in another plating solution to perform electrolytic plating or electroless plating treatment,
One or more second plating layers are formed on the surface of a metal base material.

<Function> That is, the whole stone grains according to the present invention are fixed on the surface of the metal base material in a state where they are physically included in the first plating layer and the second plating layer, so there is no risk of them falling off. In other words,
The whole stone grains applied to the surface of the metal base material serve as "insulators" during the plating process, so the first and second plating layers are applied to the gaps between the whole stone grains while avoiding these whole stone grains. It grows reliably while filling the stone grains, and is formed to wrap around the half of the whole stone grain on the metal base material side, making it possible to securely and firmly fix the whole stone grain.

In other words, all stone grains that are not fixed are removed once the first plating layer is formed, so all stone grains are sure to be fixed in both the first plating layer and the second plating layer. Therefore, no whole stone grains are fixed in an unstable state (for example, in a state where they are barely fixed only by the second plating layer), and no whole stone grains are caused to fall off after fixing.

Furthermore, since the entire stone grain is fixed using plating, it is suitable for mass production, and by covering the metal base material with an appropriate masking material, the whole stone grain can be attached only to the desired area. can.

Embodiment A preferred embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

Reference numeral 1 is a metal base material, which has the shape of an eyeglass frame as a metal ornament. Then, on the surface of this metal base material 1, a vinyl tape 3 is applied, leaving the upper edge 2 as the part to be plated.
is masked.

Ten metal base materials 1 are attached to an insulating holder 4 in parallel, and each metal base material 1 has a cathode conductor 5.
is connected and cathodized.

6 is the first plating tank, inside which the liquid temperature is 40°C and the pH is
A nickel sulfamate plating solution (hereinafter simply referred to as a first plating solution) 7 having a plating temperature of 4.5 is filled with an anode formed by an anode 8 . Further, a pedestal 9 is provided in the first plating tank 5, and a saucer 10 is further disposed on this pedestal 9.
is located.

Then, the holder 4 to which the metal base materials 1 are arranged and attached is placed in the first plating tank 6 and placed on the bottom of the saucer 10. Next, diamond abrasive grains 11 as "whole stone grains" which are artificial diamonds with particle size #270/#325 are applied until the metal base material 1 attached to the holder 4 is completely hidden by the diamond abrasive grains 11 (metallic (until the base material 1 is buried in the diamond abrasive grains 11), sprinkle it onto the metal base material 1 from above the first plating bath 6.

In this state, at a current density of IA/dm,
Nickel plating treatment was performed for 10 minutes.

Then, only the diamond abrasive grains 11 that are almost in contact with the surface of the metal base material 1 are fixed as if "temporarily fixed" by the first plating layer 12 formed by nickel plating. The diamond abrasive grains 11 applied to the surface of the metal base material 1 become an "insulator" during the plating process, so the first plating layer 12 consists of the diamond abrasive grains 11.
The diamond abrasive grains 11 were grown steadily while avoiding the above-mentioned conditions, filling the gaps between the diamond abrasive grains 11. After the nickel plating treatment, the metal base material 1 along with the holder 4 is taken out from the first plating tank 6 and washed, and the diamond abrasive grains 11 that are not fixed by the first plating N6 are removed. Incidentally, since the removed diamond abrasive grains 11 can be reused, they are collected without waste.

Next, the cleaned metal base material 1 is transferred to another second plating bath (not shown). In this second plating tank, the liquid temperature was 85°C.
It is filled with an electroless nickel plating solution (hereinafter simply referred to as the second plating solution) which is Alnic T-F. Then, electroless nickel plating treatment was performed using this second plating solution for 4 hours to further form a second plating layer 13 on the first plating N12.

The total thickness of the first plating layer 12 and the second plating layer 13 corresponded to about 2 times the particle size of the diamond abrasive grains 11. Second
After forming the plating JW 13, the masking vinyl tape 3 was removed, and nickel electrolytic plating was applied as a final finish, followed by washing and drying to obtain a glasses frame (metal ornament) as a final product.

The obtained metal ornament is fixed so that the lower half of the diamond abrasive grains 11 is wrapped in the first and second plating layers 12.13, so there is no fear that the diamond abrasive grains 11 will fall off. In other words, since the unfixed diamond abrasive grains 11 are removed once the first plating layer 12 is formed, the diamond abrasive grains 11 are always removed from the first plating layer 12.
It will be fixed by both the plating layer 12 and the second plating 7W130, resulting in an unstable state (for example, the second plating layer 1
There is no diamond abrasive grain 11 that is fixed in a state where it is barely fixed with only 3.

The obtained metal ornament is made of diamond abrasive grains of 1
The upper edge 2 to which 1 was attached sparkled depending on the angle at which the sun's rays hit it, and the decorative effect was significantly increased. Further, even when this metal ornament was scratched with a force of 5 kg using a scratch tester, the attached diamond abrasive grains 11 did not fall off.

In the above description, a single diamond abrasive grain is used as an example of "whole stone grain", but whole stone grains such as sapphire, ruby, etc. may also be used. Furthermore, the plating treatment is not limited to nickel plating. Furthermore, the second plating layer is not limited to IN, and may be formed of two or more layers.

Effect> The method for manufacturing a metal ornament with gem grains according to the present invention includes the following steps:
As explained above, all the stone grains are fixed on the surface of the metal base material in a state where they are physically included in the first plating layer and the second plating layer, so there is no risk of them falling off. In other words, all stone grains that are not fixed are removed once the first plating layer is formed, so all stone grains are always fixed in both the first plating layer and the second plating layer, and any unfixed stone grains are removed. No whole stone grains are fixed in a stable state, and no whole stone grains fall off after fixation.

In addition, since the entire stone grain is fixed using plating, it is suitable for mass production, and by covering the metal base material with an appropriate masking material, the whole stone grain can be attached only to the desired area. can.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a metal base material according to an embodiment of the present invention, FIG. 2 is a schematic sectional view showing a plating bath, and FIG. 3 is a surface view of the metal base material showing the state of adhesion of all stone grains. It is an enlarged view. 1 - Metal base material 7 - First plating solution 11 - Diamond abrasive grains (whole stone grains) 12 - First plating layer 13 - Second plating layer

Claims (1)

[Claims] A metal base material formed into a predetermined shape is immersed in a plating solution, gem grains are applied to the surface of the metal base material in the plating solution, and then the metal base material is electrolytically plated. The gem grains are fixed on the surface of the metal base material by the first plating layer formed by the above-mentioned method, and after removing the jewel grains that were not fixed by the first plating layer, the metal base material is further coated with another plating solution. A method for manufacturing a metal ornament with gem grains, characterized in that one or more second plating layers are formed on the surface of a metal base material by immersion and electrolytic plating or electroless plating treatment.