improvement surface appearance of low Carat Gold jewelery with chemical and electrochemical treatments

Document Type : Original Article

Authors

1 - Faculty of Applied Arts -Benha University

2 Metal Products and Jewelry department-Faculty of Applied Arts-Benha University

Abstract

Abstract
Keywords:
Gold Carats -Surface treatment - Electropolishing- Surface Enrichment


- The process of treatment gold jewelry surfaces, is the last step in the manufacture and production of golden jewelry, and the surface treatment gives product's final appearance that fits with the design, and that determines the quality of the jewelry product, and is therefore the first factor in attracting the user's attention.
- There are several cases of surface treatments such as polishing and electropolishing, where the surface must have a high degree of reflection, and the color enrichment of alloys and making Texture with sanding (sand blasting) or drilling or hammer ..... and other processes, and must know the jewelry designer process options Surface treatment and finishing when designing new models, as surface treatment is an integral part of jewelry ornaments design.
- We now realize that the greater the attention to the quality of the gold jewelery surface at each step of production, the finishing process will be simpler and less costly to obtain the required quality that meets the market needs with user satisfaction as the most important element and the ultimate goal of design and production processes.
- The final finishing process depends on providing accurate information and practical advice that can be easily used by gold makers or production engineers. If we exclude the initial processes that are carried out to prepare gold jewelery for finishing, there are three basic systems for processing and finishing used in the production of golden jewelery are: -
• Mechanical finishing (polishing and other surface texture)
• Chemical treatment (enrichment and purification of alloy surface)
• Electrochemical treatment (Electroplating and polishing)
Statement of problem.
The problem of research is determined by the need to improve appearance of the surface low- carats gold jewelery to obtain the surface quality that meets the market needs and attract user attention.
Purpose.
- Determine factors affecting change appearance of the surface low-carats gold jewelery.
- Determine the methods of color enrichment (removal) for the appearance of the surface of low-caliber gold jewelry.
- Use electrochemical processes (as well) to improve surface appearance.
Research hypotheses
Treating gold ornaments with chemical solutions may improve the appearance of the surface and increase its aesthetic value.
Research Methodology
The research uses the descriptive analytical method.

Keywords

Main Subjects

References

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