Leadless cadmium-free glass enamel and preparation method thereof

A glass color glaze and raw material technology, applied in the color glaze field, can solve the problems of easy lead-reversal, poor stability, environmental hazards, etc., and achieve the effect of increasing the strength of the milk.

Inactive Publication Date: 2008-09-03
SHANGHAI WENGAO COLORGLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The glass color glaze prepared according to this formula contains quite a lot of lead, and its stability is poo

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Hereinafter, the present invention will be further described in conjunction with the embodiments.

[0016] A preparation method of lead-free and cadmium-free glass color glaze is:

[0017] The first step. Weigh the raw materials according to weight percentage:

[0018] Product name

Example 1 Formulation

Example 2 Formulation

Example 3 Formulation

Silica

20

23

25

Barium oxide

10

9

8

Titanium dioxide

10

9

8

Potassium Nitrate

10

8

7

Zinc oxide

10

15

20

Lithium Carbonate

10

8

6

Tin oxide

5

4

3

Boric acid

17

16

15

Alumina

5

4

3

zirconium dioxide

3

4

5

[0019] The second step. Put all the weighed raw materials into the mixer and stir for 30 minutes, the speed of which is 20 rpm;

[0020] The third step....

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PUM

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Abstract

The invention relates to a lead and cadmium free glass glaze, which is characterized in that the glass glaze consists of the following raw materials: zinc oxide, barium oxide, silicon dioxide, titanium dioxide, potassium nitrate, lithium carbonate, stannic oxide, boric acid, alumina, and zirconium dioxide. The preparation method includes: all the raw materials are put in a mixer to stir, then the uniformly stirred powder is added to a converter to be heated and melt until the powder is completely fused; the fused melt is poured into a normal-temperature pool to be cooled and condensed to half-boiled crystals; then the crystals are put into a ball mill to be milled; the milled half-boiled glass powder is poured into a dryer to be dried and then obtains glass glaze after breaking and filtering. The glass glaze is lead and cadmium free and beneficial to environment protection.

Description

Technical field [0001] The invention relates to a lead-free and cadmium-free glass color glaze and a preparation method thereof, which are used for color spraying, printing and coating on the glass surface, and belong to the technical field of color glazes. Background technique [0002] my country had its own glass color glaze in 1965, and it still maintains this formula. The main ingredients of the original formula: silicon dioxide 30%-40%, zinc oxide 2%-6%, titanium dioxide 3%-10%, Lead oxide 30%-45%, boric acid 10%-20%, potassium nitrate 3%-8%, cadmium carbonate 4%-8%. [0003] The glass color glaze prepared according to this formula contains quite high lead content and is poor in stability. In particular, the white glaze is easy to reverse lead, ie, lead sulfide, and has great harm to the environment. Summary of the invention [0004] The purpose of the present invention is to provide a lead-free and cadmium-free glass color glaze and a preparation method thereof. [0005] T...

Claims

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Application Information

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IPC IPC(8): C03C8/02
Inventor 谭中全司彦荣
Owner SHANGHAI WENGAO COLORGLASS
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