CN215685310U - Hard gold round ball - Google Patents

Abstract

The utility model relates to a hard gold round ball, which comprises a ball main body, wherein the ball main body comprises a protective layer and a hard gold layer wrapping the protective layer from inside to outside; the through holes penetrate through two opposite sides of the ball main body, a cavity is formed in the ball main body, and the protective layer is positioned on the inner wall of the cavity; the gold content of the hard gold layer is more than 99%, the hardness is more than or equal to HV60, and the thickness is between 0.03 and 0.2 mm. The utility model aims to provide a hard gold round ball capable of reducing the abrasion of a hole wall.

Description

Hard gold round ball

Technical Field

The utility model belongs to the field of jewelry processing, and particularly relates to a hard gold round ball.

Background

The hard gold product round ball is a subdivision process in the hard gold products of gold jewelry, and the hard gold round ball is provided with through holes which are convenient for being connected in series and generally used as a fitting with matching effect when the jewelry is worn, so that the product quantity demand is huge. And the round ball has a single style, a single piece has light weight, and only a plurality of sizes are different, so the ball is suitable for large-scale production and particularly suitable for mechanized mass production. The gold round ball bead on the market is directly made of common gold. The texture of ordinary gold is softer and expensive, and the processing of punching is easy to be out of shape, still is easily worn and is out of shape by the rope of establishing ties in the through-hole during the use, causes unnecessary loss.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a hard gold round ball that can reduce wear of the hole wall.

The technical scheme provides a hard gold round ball bead which comprises a ball bead main body, wherein the ball bead main body comprises a protective layer and a hard gold layer wrapping the protective layer from inside to outside; the through holes penetrate through two opposite sides of the ball main body, a cavity is formed in the ball main body, and the protective layer is positioned on the inner wall of the cavity; the gold content of the hard gold layer is more than 99%, the hardness is more than or equal to HV60, and the thickness is between 0.03 and 0.2 mm.

Further, the protective layer has a multi-layer structure including an abrasion resistant layer.

Further, the diameter of the pair of perforations is between 0.1 and 2 mm.

Further, the pair of perforations pass through a center of the ball body.

Furthermore, the surface of the ball main body is provided with a decorative layer.

The improvement of this patent brings the following advantage: the cavity that the embodiment of this application was formed by the perforation on hollow hard gold circular ball is wrapped up by the protective layer, and is wrapping up hard gold in the outside of protective layer. The protective layer protects the hard gold layer on the outer side from being worn and deformed by the rope penetrating through the through hole; the hard gold layer at the outer side is wrapped by the protective layer to play a role in decoration and price protection. Compared with the round ball made of softer common gold, the hard gold round ball provided by the embodiment of the application has high hardness which is not less than HV60, is not easy to deform during punching, and is beneficial to improving the yield and reducing the production cost.

As a further improvement, the protective layer also has a multilayer structure, including a wear-resistant layer. As the name suggests, the wear resistant layer acts as an abrasion resistant layer to reduce wear of the perforated rope against the cavity wall.

As a further improvement, a decorative layer is arranged on the outer side of the hard gold layer, and the decorative layer is formed by processing and decorating the hard gold layer by using the technologies of grinding, wire drawing, ancient method, carving and the like, so that the decorative value and the aesthetic value of the hard gold round ball are further improved.

Drawings

FIG. 1 is a schematic perspective view of a hard gold round bead according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a hard gold round bead along the radial direction of a pair of through holes according to an embodiment of the present application;

wherein, 1 is the main body of the ball, 11 is the protective layer, 12 is the hard gold layer, and 13 is the perforation.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Referring to fig. 1 and 2, a hard gold round ball according to an embodiment of the present application includes a ball body 1. The ball body 1 is provided with a multilayer structure from inside to outside, which is a protective layer 11 positioned on the inner layer, a hard gold layer 12 wrapping the protective layer 11, and a decorative layer arranged on the hard gold layer 12.

The ball body 1 is spherical and has a diameter of 0.2-50 mm.

The thickness of the hard gold layer 12 is 0.03-0.2mm, preferably 0.1-0.15 mm; the gold content is more than 99 percent, and the hardness is more than or equal to HV 60.

The ball main body 1 is provided with a pair of through holes 13, the pair of through holes 13 penetrate through two opposite sides of the ball main body 1 through the ball center, a cavity is formed inside the ball main body 1, and the protective layer 11 is positioned on the inner wall of the cavity. The diameter of the perforation 13, i.e. the two holes, is between 0.1 and 2mm, preferably 1 mm.

The protective layer 11 may be a metal layer, a coating layer, or the like. The protective layer 11 has a multilayer structure including at least an abrasion resistant layer. The protective layer plays a role in resisting abrasion and can reduce the abrasion of the perforated rope to the perforated hole wall.

The decorative layer is formed by modifying the surface of the hard gold round ball through the processes of frosting, wire drawing, antiquing, carving and the like, so that the decorative value and the aesthetic value of the hard gold round ball are further improved.

In another embodiment of the present application, a method for preparing hard gold round beads comprises the following steps:

s1: grinding and polishing the surface of the hollow non-porous copper bead by adopting an industrial grinding method;

s2: electroforming the ground hollow non-porous copper bead in a roll plating mode, and plating a hard gold layer with the thickness of 0.03-0.2mm on the surface of the hollow non-porous copper bead to form a hard gold round ball bead blank;

s3: machining the electroformed hard gold round ball blank into a through hole with the diameter of 0.1-2mm through the ball center by adopting a machine tool, wherein the through hole penetrates through two opposite sides of the hard gold round ball, and the through hole forms a cavity in the hard gold round ball;

s4: pickling the hard gold round ball blank by adopting a heated sulfuric acid solution or a heated nitric acid solution as a pickling solution to remove copper, so as to form hard gold round balls with the gold content of more than 99%;

s5: coating a protective layer on the side wall of the cavity of the hard gold round ball bead to enable the protective layer to wrap the cavity;

s6: and performing beautification treatment on the surface of the hard gold round ball by one or more of sanding, wire drawing, antiquing and carving to form a decorative layer.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (5)

1. The hard gold round ball is characterized by comprising a ball main body, wherein the ball main body comprises a protective layer and a hard gold layer wrapping the protective layer from inside to outside; the through holes penetrate through two opposite sides of the ball body, a cavity is formed in the ball body, and the protective layer is located on the inner wall of the cavity; the gold content of the hard gold layer is more than 99%, the hardness is more than or equal to HV60, and the thickness is between 0.03 and 0.2 mm.

2. The hard gold round bead according to claim 1, wherein said protective layer has a multilayer structure comprising a wear resistant layer.

3. A hard gold circular bead according to claim 2, wherein said pair of perforations has a diameter of between 0.1 and 2 mm.

4. A hard gold round ball according to claim 3 wherein said pair of perforations pass through the center of said ball body.

5. A hard gold round bead according to any of claims 1-4, characterized in that the surface of said bead body is provided with a decorative layer.

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