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Glaze for metal product surface and firing method thereof

A technology for metal products and glazes, which is applied to the firing process of the glaze layer on the surface of metal products, can solve the problems of color glaze fading and peeling, lack of transparency of the enamel, and inability to reflect the texture of precious metals, and achieves good gloss and enhances appreciation. The effect of stability and high hardness

Active Publication Date: 2014-12-31
上海渊泉集币收藏品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the enamel glaze is generally coated with an opacified top glaze on the bottom glaze, which covers the unique color and luster of the precious metal itself, and cannot reflect the original texture of the precious metal.
There is also enamel on the glaze, which is usually on the glaze, so that the color glaze will fade and peel off, and secondly, it lacks the transparency of enamel.

Method used

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  • Glaze for metal product surface and firing method thereof
  • Glaze for metal product surface and firing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0036] Embodiment 1-5: Taking gold products as green bodies

[0037] The method of firing the glaze on the surface of gold products is as follows: 1) Weigh the raw materials according to the ratio in Table 1; 2) Mix and stir the raw materials evenly and then heat to make a frit; then add water and grind it finely to become Glaze slurry; 3) Use the traditional glazing method to apply glaze slurry to the precious metal body, dry it and put it in a high-temperature furnace for firing; the furnace temperature is evenly heated from room temperature for 3-5 hours to 800-900 degrees Celsius. A glaze is obtained on the surface of gold objects.

[0038] Table 1: Components and contents of Examples 1-5 (unit: gram)

[0039]

Embodiment 6-10

[0040] Embodiment 6-10: Taking silver as the green body

[0041] The method of firing the glaze on the surface of silver products is as follows: 1) Weigh each raw material according to the ratio in Table 2; 2) Mix and stir the raw materials evenly and then heat to make a frit; then add water and grind it finely to become Glaze slurry; 3) Apply glaze slurry to the precious metal body by traditional glazing method, dry it and put it in a high-temperature furnace for firing; the furnace temperature is evenly heated from room temperature for 3-5 hours to 700-800 degrees Celsius. Glaze is obtained on the surface of silver products.

[0042] Table 2: Components and proportions of Examples 6-10 (unit: gram)

[0043]

[0044] potassium carbonate

Embodiment 11-15

[0045] Embodiment 11-15: Taking pure copper as the green body

[0046] The method of firing the glaze on the surface of pure copper products is as follows: 1) weigh the raw materials according to the ratio in Table 3; 2) mix and stir the raw materials evenly and then heat to make a frit; then add water and grind it finely, Become a glaze slurry; 3) Use the traditional glazing method to apply glaze slurry to the precious metal body, dry it and put it in a high-temperature furnace for firing; the furnace temperature is evenly heated from room temperature for 3-5 hours to 900-1000 degrees Celsius . Glaze is obtained on the surface of pure copper products.

[0047]

Example 1

Example 2

Example 3

Example 4

Example 5

potassium carbonate

6

6

9

8

7

Sodium carbonate

4

4

7

6

5

lithium carbonate

13

13

10

11

12

Zinc oxide

19

24

...

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Abstract

The invention relates to a glaze for a metal product surface and a firing method thereof. The glaze 1) comprises at least one base agent A and 2) may also comprise an assistant B or C, wherein the base agent A comprises 6-9g of potassium carbonate, 4-7g of sodium carbonate, 10-13g of lithium carbonate, 19-24g of zinc oxide, 28-35g of boric acid, 34-41g of silicon dioxide and 3-6g of sodium fluosilicate. The technical scheme has the following advantages: 1. the glaze has favorable acid / alkali resistance, high hardness (up to Hv500-700) and favorable glossiness (70-90%); 2. the fired glaze layer has bright color, and can protect the noble metal vessel from oxidation, thereby enhancing the practicality; the fired glaze layer can also keep the original metallic color and appearance characteristic of the noble metal billet, thereby enhancing the ornamental value; and 3. the raw materials are non-toxic and leadless in the preparation process, thereby satisfying the international safety standard.

Description

technical field [0001] The invention relates to a glaze used on the surface of metal products and a firing method of the glaze, in particular to transparent glazes and colored glazes on the surface of metal products and their firing process, belonging to the firing of glaze layers on the surface of metal products technology field. Background technique [0002] Ceramic glaze, also known as ceramic glaze, is a colorless or colored glassy thin layer covering the surface of ceramic products. Glaze is one of the main contents of ancient Chinese porcelain identification. The essence of glaze is continuous glass attached to the surface of the porcelain body. Some special glazes are the mixed layer of glass and crystal, which have similar physical and chemical properties to glass. [0003] At present, the glazes acting on metal surfaces are mainly enamel glazes, which are used to coat metal blanks and consist of alkali-boron-silicate glassy substances. The enamel glaze is applied...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/14
Inventor 龚利昌
Owner 上海渊泉集币收藏品有限公司
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