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Nitrate-free environment-friendly steel plate enamel medium-temperature acid-resistant transparent glaze and preparation method thereof

An environmentally friendly, nitrate-based technology, applied in the field of enamel, can solve the problems of aggravating nitrogen oxides and achieve the effect of solving environmental pollution

Pending Publication Date: 2022-04-19
SINOPIGMENT & ENAMEL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although this document avoids the use of nitrates, it eventually aggravates the production of nitrogen oxides, which runs counter to the purpose of reducing or eliminating nitrogen oxides

Method used

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  • Nitrate-free environment-friendly steel plate enamel medium-temperature acid-resistant transparent glaze and preparation method thereof
  • Nitrate-free environment-friendly steel plate enamel medium-temperature acid-resistant transparent glaze and preparation method thereof
  • Nitrate-free environment-friendly steel plate enamel medium-temperature acid-resistant transparent glaze and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Take the raw materials by the mass parts of the following components:

[0042] Zero water borax 23.2KG, quartz 40KG, soda ash 12.5KG, titanium dioxide 5KG, alumina 7KG, fluorite 6.8KG, barium carbonate 4KG;

[0043] (2) Stir and mix the above-mentioned raw materials;

[0044] (3) Add the uniformly mixed material into a melting furnace for melting, and melt it under pure oxygen conditions, and control the melting temperature at 1260±10°C;

[0045] (4) After the above materials are completely melted, the borosilicate glass body is obtained, and the molten borosilicate glass body is brazed, and quickly drawn into a glass filament of 1.2 to 1.5 meters for detection. The detection requirement is: within 1 meter of the glass filament. The knot is the completion of melting;

[0046] (5) Quenching (pressing) the melted borosilicate glass body to obtain the product.

Embodiment 2

[0048] The preparation process of this embodiment and embodiment 1 is basically the same, the difference is:

[0049] The mass parts of each component in the step (1) are: zero-water borax 24.6KG, quartz 40KG, soda ash 10.8KG, titanium dioxide 5KG, aluminum oxide 7KG, fluorite 6.5KG, barium carbonate 4KG.

[0050] In step (5), quenching the melted borosilicate glass body is a process of water quenching.

Embodiment 3

[0052] The preparation process of this embodiment and embodiment 1 is basically the same, the difference is:

[0053] The mass parts of each component in the step (1) are: zero-water borax 25.9KG, quartz 40KG, soda ash 11.7KG, titanium dioxide 5KG, aluminum oxide 7KG, fluorite 5.2KG, barium carbonate 4KG.

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Abstract

The invention discloses nitrate-free environment-friendly steel plate enamel medium-temperature acid-resistant transparent glaze and a preparation method thereof, and belongs to the technical field of enamel, and the formula comprises the following components in parts by mass: 23-26 parts of borax anhydrous, 39-41 parts of quartz, 10-13 parts of sodium carbonate, 4-6 parts of titanium dioxide, 6-8 parts of aluminum oxide, 5-7 parts of fluorite and 3-5 parts of barium carbonate. The raw materials are uniformly mixed according to the proportion and are molten under the condition of pure oxygen at 1260 + / -10 DEG C, and the firing temperature of the finished product is 800-840 DEG C. The formula does not contain nitrate, and the major technical problem that nitrogen oxide (NOx) gas generated in the production process of the existing steel plate enamel medium-temperature acid-resistant transparent glaze is discharged to pollute the environment is fundamentally solved.

Description

technical field [0001] The invention belongs to the technical field of enamel, and in particular relates to a medium-temperature acid-resistant transparent glaze for steel plate enamel without nitrate and a preparation method. Background technique [0002] Enamel enamel is mainly composed of feldspar, quartz and other refractory raw materials, borax, sodium nitrate, potassium nitrate, soda ash and other fusible chemical raw materials, as well as characteristic raw materials such as non-ferrous metal oxides. They are mixed in a certain proportion, melted at high temperature, and rapidly cooled into granules or flakes. Shaped borosilicate glass bodies were prepared. [0003] The introduction of nitrates (sodium nitrate, potassium nitrate, etc.) into enamel glazes as oxidants and fluxes has become a consensus in the industry, and it is an indispensable raw material for enamel glazes in traditional enamel theory. So far, there is no safe, colorless, reasonably priced oxidizing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/06
CPCC03C8/06C03C2207/04
Inventor 汤上陈淑兰
Owner SINOPIGMENT & ENAMEL CHEM
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