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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: 2022-04-19
SINOPIGMENT & ENAMEL CHEM
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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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Embodiment 1
[0041] (1) Take the raw materials by the mass parts of the following components:
[0042] Zero water borax 20KG, potassium feldspar 15.8KG, quartz 36KG, soda ash 9.5KG, sodium fluorosilicate 8.5KG, titanium dioxide 5KG, zinc oxide 0.5KG, aluminum oxide 7KG;
[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 the melting temperature is controlled 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 (water quenching) 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 21KG, potassium feldspar 15KG, quartz 36KG, soda ash 9KG, sodium fluorosilicate 8KG, titanium dioxide 5KG, zinc oxide 0.5KG, aluminum oxide 7KG.
[0050] In step (5), rapid cooling of the melted borosilicate glass body adopts a tableting process.
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 22KG, potassium feldspar 14.3KG, quartz 36KG, soda ash 8KG, sodium fluorosilicate 7.3KG, titanium dioxide 5KG, zinc oxide 0.5KG, aluminum oxide 7KG.
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Abstract
The invention discloses nitrate-free environment-friendly steel plate enamel medium-temperature transparent glaze and a preparation method thereof, and belongs to the technical field of enamel, the nitrate-free environment-friendly steel plate enamel medium-temperature transparent glaze comprises the following components by mass: 20-22 parts of borax anhydrous, 14-16 parts of potassium feldspar, 35-37 parts of quartz, 8-10 parts of sodium carbonate, 7-9 parts of sodium fluosilicate, 4-6 parts of titanium dioxide, 0.2-0.8 part of zinc oxide, and 6-8 parts of alumina. 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 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 nitrate-free environment-friendly steel plate enamel medium-temperature transparent glaze and a preparation method thereof. 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 oxi...
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Application Information
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