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Nitrate-free environment-friendly medium-temperature pearlescent glaze for enameled steel plates and preparation method thereof

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

Pending Publication Date: 2022-04-15
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 medium-temperature pearlescent glaze for enameled steel plates and preparation method thereof
  • Nitrate-free environment-friendly medium-temperature pearlescent glaze for enameled steel plates and preparation method thereof
  • Nitrate-free environment-friendly medium-temperature pearlescent glaze for enameled steel plates 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] Quartz 41KG, Borax 13KG, Potassium Feldspar 17KG, Potassium Carbonate 1.0KG, Titanium Dioxide 10KG, Calcium Carbonate 4KG, Soda Ash 11KG, Fluorosilicate 5KG, Lithium Carbonate 0.5KG, Talc 4KG;

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

[0044] (3) Put the uniformly mixed material into the melting furnace, and melt it under the condition of pure oxygen, 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 pulled 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 and quenching the melted borosilicate glass body with water to obtain the product.

Embodiment 2

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

[0049] Quartz 42KG, Borax 13KG, Potassium Feldspar 17KG, Potassium Carbonate 1.1KG, Titanium Dioxide 10KG, Calcium Carbonate 4KG, Soda Ash 11KG, Fluorosilicate 7.5KG, Lithium Carbonate 0.5KG, Talc 4KG.

Embodiment 3

[0051] The preparation process of this embodiment and embodiment 1 is basically the same, the difference is:

[0052] Quartz 43KG, Borax 14KG, Potassium Feldspar 17KG, Potassium Carbonate 1.2KG, Titanium Dioxide 10KG, Calcium Carbonate 4KG, Soda Ash 11KG, Fluorosilicate 6.5KG, Lithium Carbonate 0.5KG, Talc 4KG.

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Abstract

The invention discloses nitrate-free environment-friendly medium-temperature pearlescent glaze for an enameled steel plate and a preparation method, and belongs to the technical field of enamel, the nitrate-free environment-friendly medium-temperature pearlescent glaze comprises the following components in parts by mass: 38-44 parts of quartz, 12-14 parts of borax, 16-18 parts of potassium feldspar, 0.7-3 parts of potassium carbonate, 8-11 parts of titanium dioxide, 2-5 parts of calcium carbonate, 10-12 parts of sodium carbonate, 3-8 parts of sodium fluosilicate and 0.5-1 part of lithium carbonate. And 2-5 parts of talcum powder. The raw materials are uniformly mixed according to the proportion and are melted 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 technical problem that the environment is polluted due to emission of nitrogen oxide (NOx) gas generated in the production and processing process of the existing medium-temperature pearlescent glaze for the enameled steel sheet is fundamentally solved.

Description

technical field [0001] The invention belongs to the technical field of enamel, and in particular relates to a nitrate-free environment-friendly enamel steel plate medium-temperature pearlescent glaze 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 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/06C03C6/06C23D5/00
Inventor 汤上陈淑兰
Owner SINOPIGMENT & ENAMEL CHEM
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