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Nitrate-free environment-friendly cast iron enamel low-temperature ground coat 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: 2022-04-19
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 cast iron enamel low-temperature ground coat and preparation method thereof
  • Nitrate-free environment-friendly cast iron enamel low-temperature ground coat and preparation method thereof
  • Nitrate-free environment-friendly cast iron enamel low-temperature ground coat and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Weigh the raw materials according to the mass parts of the following components:

[0041] Quartz 12.0kg, zero water borax 31.0kg, soda ash 6.1kg, potassium carbonate 3.6kg, barium carbonate 8.8kg, fluorite 7.5kg, magnesium carbonate 1.4kg, potassium feldspar 24.5kg, alumina 0.8kg, manganese oxide 1.3kg, Cobalt oxide 0.5kg, nickel oxide 1.3kg, copper oxide 0.6kg.

[0042] (2) Stir and mix the above raw materials evenly.

[0043] (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 1230±10°C.

[0044] (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 testing. The testing requirement is: no glass filament within 1 meter. The knot is the completion of melting.

[0045] (5) Rapid cooling (water quenching) of the mel...

Embodiment 2

[0047] The preparation process of this embodiment and embodiment 1 is basically the same, the difference is:

[0048] The mass parts of each component in step (1) are: quartz 12.0kg, zero-water borax 30.3kg, soda ash 7.2kg, potassium carbonate 5.0kg, barium carbonate 8.8kg, fluorite 7.5kg, magnesium carbonate 1.4kg, potassium feldspar 24.5kg, 0.8kg of alumina, 1.3kg of manganese oxide, 0.5kg of cobalt oxide, 1.3kg of nickel oxide, and 0.6 kg of copper oxide.

[0049] In step (5), the process of rapidly cooling the melted borosilicate glass body is by tableting.

Embodiment 3

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

[0052] The mass parts of each component in step (1) are: quartz 12.0kg, zero-water borax 29.5kg, soda ash 7.5kg, potassium carbonate 5.6kg, barium carbonate 8.8kg, fluorite 7.5kg, magnesium carbonate 1.4kg, potassium feldspar 24.5kg, 0.8kg of alumina, 1.3kg of manganese oxide, 0.5kg of cobalt oxide, 1.3kg of nickel oxide, and 0.6 kg of copper oxide.

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Abstract

The invention discloses a nitrate-free environment-friendly cast iron enamel low-temperature ground coat and a preparation method thereof, and belongs to the technical field of enamel, and the formula comprises the following components in parts by mass: 10-14 parts of quartz, 29-31 parts of anhydrous borax, 6-8 parts of sodium carbonate, 3.5-6.0 parts of potassium carbonate, 8-9 parts of barium carbonate, 7-8 parts of fluorite, 24-26 parts of potassium feldspar, 1.2-1.6 parts of magnesium carbonate, 1.2-1.4 parts of nickel oxide and 0.5-0.6 part of copper oxide. 1.2 to 1.4 parts of manganese oxide, 0.5 to 0.6 part of cobalt oxide and 0.8 to 0.9 part of aluminum oxide. The raw materials are uniformly mixed according to the proportion and are molten under the condition of pure oxygen at 1230 + / -10 DEG C, and the firing temperature of the finished product is 740-760 DEG C. The formula does not contain nitrate, and the major technical problem that in the production process of existing cast iron enamel low-temperature ground glaze, nitrogen oxide (NOx) gas is generated and 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 and environment-friendly cast iron enamel low-temperature underglaze 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 and fluxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/06C03C6/06C23D5/00
CPCC03C8/06C03C1/00C23D5/00C03C2207/06
Inventor 汤上陈淑兰
Owner SINOPIGMENT & ENAMEL CHEM
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