JP2002129256A - Jewel and metallic material for jewel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jewel composed of a metallic material having corrosion resistance more excellent than that of the conventional one and to provide the metallic material for the jewel. SOLUTION: This jewel is composed of a metallic material having a composition essentially consisting of Ag, containing, by weight, 0.1 to 5.0% Au and containing at least one or more kinds of elements selected from the groups consisting of Cu, Al, Ti, Pd, Ni, V, Ta, W, Mo, Cr, Ru and Mg by 0.1 to 5.0%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to jewelry and metal materials for jewelry, and can be applied to rings, bracelets, brooches, necklaces, earrings, and the like.

[0002]

2. Description of the Related Art As a conventional metal material for jewelry, a gold alloy, a platinum alloy or the like is often used. Among them, those exhibiting silver white are mainly K14, K18,
White gold, 90% or 95% platinum (P
t) and alloys of palladium (Pd), cobalt (Co), and the like.

[0003] Gold and platinum have very high unit prices, and materials containing 90% or more of platinum and added with a noble metal that maintains a white color also have very high unit prices. Therefore, silver is often used as an inexpensive alternative metal material for white jewelry.

[0004]

However, jewelry made of silver has poor corrosion resistance as compared with gold and platinum, and oxidizes during use to become dark silver. It requires care such as removal, which is inconvenient compared to gold and platinum-based materials.

In order to compensate for the poor corrosion resistance, it is conceivable to apply a plating of rhodium or the like to jewelry made of silver. However, as described above, it is relatively easy for the plating to peel off and the plating is likely to come off. The surface oxidizes and becomes dark silver. Therefore, it is difficult to maintain silvery white similar to platinum even when plating is performed.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a jewelry and a metal material for jewelry made of a metal material having excellent corrosion resistance as compared with the related art. It is in.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, a jewelry according to the present invention contains Ag as a main component, contains Au in an amount of 0.1 wt% to 5.0 wt%, and contains Cu,
1, Ti, Pd, Ni, V, Ta, W, Mo, Cr, R
It is characterized by being made of a metal material containing at least one element selected from the group consisting of u and Mg in an amount of 0.1 wt% or more and 5.0 wt% or less.

According to the above jewelry, Ag is a main component,
Containing Au, and containing Cu, Al, Ti, Pd, Ni,
Since it contains a predetermined amount of at least one element selected from the group consisting of V, Ta, W, Mo, Cr, Ru, and Mg, it is possible to improve corrosion resistance as compared with a jewelry made of conventional silver. it can.

The metal material for jewelry according to the present invention is a metal material for jewelry containing Ag as a main component.
wt% to 5.0 wt%, Cu, Al, T
i, Pd, Ni, V, Ta, W, Mo, Cr, Ru, M
g, containing at least one element selected from the group consisting of g and 0.1 wt% or more and 5.0 wt% or less.

[0010]

Embodiments of the present invention will be described below. Jewelry according to an embodiment of the present invention may be Ag
4. Main component is Au, and Au is 0.1% by weight (wt%) or more.
0 wt% or less, Cu, Al, Ti, Pd, Ni,
It is made of a metal material containing at least one element selected from the group consisting of V, Ta, W, Mo, Cr, Ru, and Mg in an amount of 0.1 wt% or more and 5.0 wt% or less.

Here, the present invention can be applied to various jewelry items, and more specifically, to rings, bracelets, brooches, necklaces, earrings, cufflinks, tie pins, watch bands, key holders, and the like. It is possible to apply. However, these specific examples are merely examples, and the present invention can be applied to other jewelry. Hereinafter, the same applies to jewelry.

According to the above embodiment, Au is contained,
And Cu, Al, Ti, Pd, Ni, V, Ta, W,
Since a predetermined amount of at least one element selected from the group consisting of Mo, Cr, Ru, and Mg is contained, corrosion resistance can be improved as compared with a jewelry made of conventional silver. This metal material has a silvery white color and a hardness that can be used as jewelry.

The present invention is not limited to the above embodiment, but can be implemented with various modifications.

[0014]

As described above, according to the present invention, A
g as a main component, containing Au, and Cu, Al, T
i, Pd, Ni, V, Ta, W, Mo, Cr, Ru, M
a predetermined amount of at least one or more elements selected from the group consisting of g; Therefore, it is possible to provide a jewelry and a jewelry metal material made of a metal material having excellent corrosion resistance as compared with the related art.

Claims (2)

[Claims] 1. An alloy containing Ag as a main component, containing Au in an amount of 0.1 wt% or more and 5.0 wt% or less, Cu, Al, Ti, Pd, Ni, V, Ta, W, Mo,
At least one selected from the group consisting of Cr, Ru, and Mg
A jewelry comprising a metal material containing at least 0.1 wt% and not more than 5.0 wt% of elements. 2. A metal material for jewelry containing Ag as a main component, containing Au in an amount of 0.1 wt% or more and 5.0 wt% or less, Cu, Al, Ti, Pd, Ni, V, Ta, and W. , Mo,
At least one selected from the group consisting of Cr, Ru, and Mg
A metal material for jewelry, comprising at least 0.1 wt% and not more than 5.0 wt% of elements.