INVENTION
Patent of the Russian Federation RU2194427
METHOD OF MANUFACTURING JEWELRY OR DECORATIVE PRODUCTS

METHOD OF MANUFACTURING JEWELRY OR DECORATIVE ARTICLES. ORNAMENTS. JEWELRY. GOLD. PLATINUM. DIAMOND. BRILLIANT. KNOW HOW. TREATMENT. BREAKDOWN. PRECIOUS STONE. INTRODUCTION. PATENT. TECHNOLOGIES.

INVENTION. METHOD OF MANUFACTURING JEWELRY OR DECORATIVE ARTICLES. Patent of the Russian Federation RU2194427

Name of applicant: Tikhonkov Alexander Konstantinovich
The name of the inventor: Tikhonkov Alexander Konstantinovich
The name of the patent holder: Tikhonkov Alexander Konstantinovich
Address for correspondence: 191187, St. Petersburg, ul. Furmanova, 14, PO Box 578, Patent Office
Date of commencement of the patent: 2001.01.31

Designed for artistic processing of metals and can be used in jewelry production in the manufacture of weapons, church utensils, as well as in monumental sculpture. It includes the operations of applying a chemically resistant coating to the surface of the product, performing on the coating layer of the decorative pattern with a sharp pen and deepening the surface areas by etching the surface of the product free of chemically resistant coating. On the surface of the product, the decorative pattern is performed repeatedly, after each drawing operation, the article is placed in a galvanic bath and filled with deeper surface areas with different finishing materials to the level of the main surface. The surface of the product can be treated with acids or subjected to heat treatment before changing the color of the finishing metals, and also to engrave. Provides a reduction in labor intensity in the decorative processing of surfaces with a complex relief structure.

DESCRIPTION OF THE INVENTION

The invention relates to methods of artistic processing of metals and can be used in jewelry manufacture, in the manufacture of weapons, church utensils, and in monumental sculpture.

A wide variety of methods for applying decorative patterns to the surface of metal products is known (L.A. Gutov and M.K. Nikitin, "Handbook on the artistic processing of metals", St. Petersburg: "Politechnica", pp. 327-335, 369-373).

The present invention relates to methods using an electroplating, which is widely used in jewelry production (VI Marchenkov "Jewelcrafting", Moscow: Higher School, 1984, p.183). Electroplating is used both to protect the surface of the product from mechanical wear, and to make the product more decorative and attractive.

Thus, the German patent for invention 19521323 of 12.06.95, MPC C 25 D, 15/00, A 44 C, 27/00, protected the method of applying an electroplating coating on the metal surface of the part. The coating reduces friction and wear of the part.

There is also known a method for manufacturing a bracelet of wristwatches with electroplating according to the patent for invention of Great Britain 02324022 of 10.04.97, IPC A 44 C 27/00. According to the patent, the bracelet preparation is lowered into a galvanic bath, where only the outer surfaces of the bracelet links are covered with a layer of precious metal.

Electroplating is also used to create a decorative pattern on the surface of a metal product. The decorative pattern is applied to the surface of the product, then etched (falls below the main plane of the product), then the pattern is covered with a thin layer of another metal by galvanic method (see above "Reference", p. 311). In a similar way, you can etch the background, and leave the drawing at the level of the product plane.

Such a product will not have an even polished multi-colored surface, and a thin galvanic layer does not allow the use of engraving, which narrows the decorative possibilities of the method.

Known is the method of the so-called "northern mob" (TI Makarov "Black matter of Ancient Rus", M .: "Science", 1986). In accordance with this method, the pattern is applied by sampling the surface (pattern or background) with the aid of the studs of various configurations or engraving. The difference in levels between the background and the pattern can also be obtained by the method of coining, by lowering the background with coins of different configurations. In contrast to the previous method, the debris obtained is filled with an alloy of silver, copper, sulfur and other components. Filling takes place up to the level of the main plane with subsequent polishing of the entire product.

The drawback of this method is the low strength of the decorative finish, since the inserts are cleaved when the surface is poorly prepared and when the product is deformed. The method excludes the possibility of using engraving, as well as heat treatment, to obtain tint colors, which narrows the color palette of the decor. All these drawbacks exclude the use of the method in monumental and volumetric spatial compositions.

The decorative effect of the proposed method can be obtained by the "all-round" method (cutting taushirovanie, see "Handbook", p. 368), which is especially common in the design of weapons. In accordance with this method, a deeper pattern is engraved on the surface of the article, and the edges of the pattern lead to the edge of the surface. Then, in the hollow, the finishing metal is pierced with the hammer level with the surface. Such a product has the effect of an even polished surface, consisting of different in color metals.

The method requires a large expenditure of finishing, as a rule, precious materials. In addition, the products manufactured by this method are not subject to heat treatment due to the difference in the voltage of the metals. The method is not applicable for complex volumetric forms (sculptures, small jewelry plastics).

The closest solution to the claimed method can be considered the method of Japanese application 62-17559 dated 01.02.83., MPC B 44 C 1/22, C 23 F 1/00. According to this method, on the surface of the zinc or poor plate treated with an anticorrosive coating, the desired pattern is made by double lines using a steel pen. Then remove the anti-corrosion coating from the areas of the pattern and immerse the plate in the etching solution. As a result, grooves are obtained in the place where the pattern is drawn. The cavity is filled with resin, into which precious stones or other decorative ornaments are placed, lifting the plane of the pattern to the main plane of the product.

The method is very laborious and has limited decorative features, in particular, it excludes the decoration of a complex surface, such as chalices, sculptures, including monumental ones.

A method according to the patent DE 3802872 A1, cl. At 44 C 1/00.

According to the method, a protective mask is applied to the surface of the workpiece to be treated by a screen printing method in accordance with the drawing. The rest of the surface is covered with acid-resistant paint. Next, the pattern is etched, and then filled with a finishing metal.

This method is not suitable for surfaces of complex configuration.

The task of the proposed solution is to reduce labor intensity in the decorative processing of surfaces with a complex relief structure.

In order to solve the problem in a method for manufacturing jewelry or decorative articles, comprising the step of applying a chemically resistant coating to the surface of the product, performing a decorative pattern on the coating layer with a sharp pen and deepening the surface areas by etching the surface of the product free of chemically resistant coating, Are performed repeatedly, after each drawing operation, the article is placed in a galvanic bath and filled with deeper surface areas with different finishing metals to the level of the main surface.

The surface of such a product can be further treated with acids or subjected to heat treatment before changing the colors of the finishing metals.

It is also possible to engrave such a surface of the article.

The proposed sequence of processing the product greatly simplifies the process and makes possible the decorative processing of products with a complex relief structure. The method makes it possible to obtain a strong connection of several metals. Due to the strength of the joint, the product can be treated thermally or with acids, which allows to expand the decorative palette on the surface of the product.

The method is carried out as follows.

Before the decorative treatment, the surface of the metal product is thoroughly polished, then the entire surface is covered with a thin layer of chemically resistant coating - a "mask", for example bitumen varnish.

The applied layer of the coating is scratched with a needle, a sharp pen or a curtain pattern or composition, conceived by the artist. In this form, the product is placed in a pickling bath, where metal is etched to a given depth, not covered by a "mask", ie, free of chemically resistant coating. It turns out in-depth drawing.

The etched billet with a pattern is thoroughly washed with running water and immersed in a galvanic bath, where in the depressed areas the finishing metal is built up to the level of the main plane of the product. As finishing metal can be gold, silver, copper.

After the galvanic bath, the mask is washed off, the product is polished and a smooth surface with a decorative pattern of metal of a different color is obtained. The processing technology of the product ensures the strength of the bond between the base and the decorative metal, and thus the strength of the entire product is achieved.

This entire process can be repeated, i.e. A "mask" of a chemically resistant coating is again applied to the surface of the article, the same or other pattern is scratched (both on the main surface and on the decorative part), the image is deepened by etching, the grooves are filled with new decorative material. As a result, you get a product encrusted with two different metals.

The strength of the surface of such a product allows the use of additional decorative processing - engraving.

In addition, such an article can be treated with acids to identify additional decorative properties of metals (one metal, for example, darkens, and another will lighten). The same effect can be achieved by heating the product to the appearance of "tarnishing colors" (changing the color of the metal under the influence of high temperature).

Thus, the proposed method of decorative processing of metal products expands the decorative possibilities and reduces the complexity of the process when processing products with a complex relief structure, for example sculptures, including monumental ones, which will allow the production of more diverse products and more fully implement the artist's intent.

The method can be widely used not only in jewelry, in the manufacture of weapons and church utensils, but also in monumental sculpture. The method is applicable to products made of metal in the technique of casting, forging, defoaming, embossing, knocking.

CLAIM

1. A method for manufacturing jewelry or decorative articles, comprising the steps of applying a chemically resistant coating to the surface of the article, performing a decorative pattern on the coating layer with a sharp pen, and deepening the surface areas by etching the surface of the product free of chemically resistant coating, characterized in that the decorative surface The drawing is performed repeatedly, after each drawing operation the article is placed in a galvanic bath and filled with deeper surface areas with different finishing materials to the level of the main surface.

2. A method according to claim 1, characterized in that the surface of the article is treated with acids until the color of the finishing metals changes.

3. A method according to claim 1 or 2, characterized in that the article is subjected to a heat treatment before changing the colors of the finishing metals.

4. A method according to any of the preceding claims. 1-3, characterized in that the surface of the article is etched.

print version
Date of publication 02.01.2007гг