SU1158388A1 - Method of producing artistic decorative design on metal articles - Google Patents

Abstract

1. METHOD OF OBTAINING A DECORATIVE-ARTISTIC IMAGE DEVELOPMENT WITH A METAL PRODUCT, consisting in preparing the surface of the product, applying the background image; graphically, reproducing the image by applying boron and repainting the coating with a colorless transparent varnish, about jr, and so that, in order to expand the range of products by producing a multicolor image, before applying the background image on the surface of the product, the areas corresponding to the tones of the multi-color image, and the application of the background is carried out by patinating step by step with reproducing at each stage the background of the image corresponding to one tone, while maintaining at each stage Modes patination providing reception of the tone, and after reproduction of graphic pattern analogous derivative t-ing additional patination portions on which grooves are applied.

Description

2, the method according to claim 1, in which the following grooves are applied after the additional patination.

The invention relates to the art of metal processing and can be used to produce a decorative and artistic image on metal articles.

The purpose of the invention is to expand the range of manufactured products by producing a multi-color image.

The drawing shows the implementation scheme of the proposed method.

Before cutting with the cutting tool, the surface of the metal plate 1 is patinated with a layer 2 according to the color marking of the image. In accordance with the figure, a part of the patina and the surface layer of the metal under it are removed with a cutting tool, dividing the grooves 3 of an acute-angled shape. The resulting furrows patinated in various colors 4 according to the nature of the pattern, after which additional furrows 5 are applied in accordance with the color-artistic design of the image and then the entire working surface is covered with a colorless transparent varnish 6.

The combination of metal planes and grooves patinated in various colors, as well as a combination of differently directed non patinated grooves forming threadlike microprisms 7 in relation to the incident light rays 8, create the effect of a flowery volumetric pattern when visually perceiving the image 9.

The technological operations of the method of obtaining a multi-color image (color engraving) on a metal substrate (e.g. copper) not less than 0.2 mm thick are as follows.

Operation 1. Prepare the work surface of the workpiece by stripping with fine emery cloth followed by degreasing with alcohol.

Step 2. Get the necessary background on the working surface in accordance with the color marking of images 2

Razheni by wiping the surface with a swab moistened in an aqueous solution of sodium sulphide. Depending on the duration of the effect of the solution on the surface of the preform, the color of the surface varies from light yellow to dark blue with all the intermediate tones. Moreover, the time to obtain the required color or tone depends on the concentration of the solution, which is determined experimentally and is equal to 0.4-1.5%. When the concentration of the solution is close to 0.4%, the retention time of one tone on the surface of the workpiece is about 3-5 s. With a greater concentration of the solution and an increase in the exposure time, the change in tones and colors of the surface changes more rapidly. It is practically advisable to have several solutions of sodium sulfide with different concentrations, for example, 0.4-1.0 and 1.5%, allowing to obtain different combinations of color and tone, based on specific tasks - artistic design by changing the exposure of the solution on the surface for 3 seconds. up to 10 min After the desired tone or color has been formed, the resulting color image is fixed by washing in water, followed by drying the surface.

Step 3. The tool is cut (needles, cutters) of certain areas of the working surface of the workpiece according to the selected pattern by removing the surface layer of metal (to a depth of 0.05-0.1 mm), taking into account the color background of the image.

Step 4, Re-patinate the surface areas treated with a cutting tool in order to obtain colorotone stains on them according to the artistic intent and the selected pattern.

Step 5. Perform elementwise fine-tuning of the graphic pattern by local removal of the surface layer with a cutting tool.

3115.8388 4

Operation 6. Apply a colorless pro- ductive product, souvenir products, etc .; varnish lacquer. Suspended stability of all colors

The use of methods for fading in the light of color and mehba to obtain decorative and artistic:; in comparison with the foot image on metal products with traditional types of color coatings, compared with the known effects; The following advantages are highly cost-effective: The color coating provides the ability to produce combinations due to the use in the form of dyeing personal color shades of both the background material of only one ingredient - the image, and the pattern, which is a pure sodium sulfate solution.

Claims (2)

1. METHOD FOR PRODUCING A DECORATIVE ARTISTIC IMAGE ON A METAL PRODUCT, which consists in preparing the surface of the product, applying a background image; graphic. reproducing the image of the picture by applying grooves with the fact that, in order to expand the assortment of products by obtaining a multicolor image, prior to applying the image on the surface of the product, areas corresponding to the tones of the multicolor image are distinguished, and the background is applied by patination in stages with reproduction on each stage of the background corresponding to one tone of the image, while maintaining at each stage the patination modes that ensure the receipt of a given tone, and after reproducing the graphic drawing produces analogies - and the subsequent coating with a colorless but additional patination 15838 2. The method according to π. 1, an additional patination is done with the fact that after additional grooves.