Enamel for precious metal adornment surface coating

Abstract

The invention discloses enamel for a precious metal adornment surface coating. The enamel comprises a component A and a component B, wherein the component A comprises the following raw materials in parts by mass: 50-60 parts of SiO2, 14-45 parts of PbO, 14-20 parts of Na2O, 7-12 parts of K2O, 2-4 parts of Li2O, 1-2 parts of B2O3, 2-6 parts of BaO, 2-4 parts of P2O5 and 5-7 parts of TiO2; and the component B comprises the following raw materials in parts by mass: 0.1-0.75 part of borax, 0.01-0.06 part of gum tragacanth, 0.01-0.06 part of sodium alginate, 0.2-1 part of urea, 0.2-0.75 part of sodium nitrite, 0.1-0.5 part of potassium carbonate, 0.1-0.5 part of sodium chloride, 0.1-0.5 part of potassium chloride, 0.2-0.7 part of potassium nitrite, 0.4-2 parts of zinc oxide, 0.02-1 part of formaldehyde and 2-4 parts of pigment; and the component A comprises various components in enamel glaze, and the component B comprises various components in additives. The invention also discloses a method for processing the enamel. The invention simultaneously discloses a spraying method of the enamel on the precious metal adornment surface. The coating processed by the enamel formula according to the spraying method has bright and uniform semitransparent effect and is difficult to peel.

Description

technical field [0001] The invention relates to the field of ornaments, in particular to an enamel formula for forming an enamel coating effect on the surface of precious metal ornaments. Background technique [0002] Traditional enamel is a glass coating mainly applied to the surface of steel plates, cast iron or aluminum products, with artistic and aesthetic patterns for protection and decoration. The enamel wares of the Ming and Qing Dynasties and the enamel watches imported from Europe at that time have gone through hundreds of years, and they still look like new and magnificent! It can be said that enamel jewelry has the strongest artistic expression in the jewelry family. Enamel jewelry mainly adopts the process of painting enamel. It is made of gold, silver, titanium, copper and other metals to make fetal bones, and the enamel color pigments are micro-painted on the pit pattern on the metal tire, and then put into a high-temperature kiln for 800 hours. It is sintere...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned problem that the coating processed by traditional enamel raw materials on the surface of precious metal ornaments is prone to various surface defects and the color uniformity is not ideal at the same time, one of the purposes of the present invention is to provide an enamel specially used for the surface coating of precious metal ornaments. The second object of the present invention is to provide a processing method for this enamel, and the third object of the present invention is to provide a method for spraying this enamel on the surface of precious metal ornaments

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