Porcelain glaze material, enamel coating of copper products and preparation method thereof

A technology of copper products and enamel, which is applied in the field of enamel materials and can solve problems such as insufficient corrosion resistance

Active Publication Date: 2020-12-29
PANZHIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: copper or copper alloy in high-concentration seawater, sediment or containing NH 3 (NH 4 + ) Insufficient corrosion resistance in the salt system

Method used

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Examples

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Effect test

preparation example Construction

[0033] The present invention also provides a kind of preparation method of above-mentioned enamel material, comprises the following steps:

[0034] a, by weight 20-22 parts of feldspar, 5-8 parts of quartz sand, 2-4 parts of chalk, 24-26 parts of borax, 1.5-2 parts of sodium nitrate, 0.5-1 part of potassium dichromate, Al ( h 2 PO 4 ) 3 2~3 parts, Li 2 CO 3 1-1.2 parts, 5-7 parts of fluorite, 3-5 parts of cryolite, 0.1-0.3 parts of sodium fluorosilicate, 0.5-1.0 parts of pyrite, Sb 2 S 3 2 to 4 parts, Na 2 MoO 4 0.5-1 part, 3-4 parts of cobalt nitrate and 1-2 parts of nickel nitrate are mixed, and ground to a particle size of 140-160 mesh;

[0035] b. Heating the material obtained in step a at 800-850°C for 30-40 minutes, raising the temperature to 1150-1200°C for 1-1.5 hours to obtain molten enamel;

[0036] c. Pour the molten enamel into cold water, quench and crush it, and dry it at 100-130° C. for 20-30 minutes to obtain a dried enamel.

[0037] The inventive ...

Embodiment 1

[0048] Embodiment 1 adopts the inventive method to prepare enamel coating

[0049] Take 20 parts of feldspar, 8 parts of quartz sand, 2 parts of chalk, 24 parts of borax, 1.5 parts of sodium nitrate, 0.5 part of potassium dichromate, Al(H 2 PO 4 ) 3 2 copies, Li 2 CO 3 1 part, 5 parts of fluorite, 3.5 parts of cryolite, 0.3 part of sodium fluorosilicate, 1.0 part of pyrite, Sb 2 S 3 3.5 parts, Na 2 MoO 4 0.5 parts, 3.5 parts of cobalt nitrate and 1 part of nickel nitrate are mixed evenly, after ball milling, transfer to an electric furnace to heat at 800°C for 40min, raise the temperature to 1200°C for 1.5h, melt, quench in water, take out, and dry. Take 100 parts of glaze, 0.5 part of borax, BaMoO 4 0.5 parts, 7.5 parts of clay, 1 part of bentonite, 1 part of magnesium sulfate, mixed and pulverized to obtain enamel glaze.

[0050] Add 33 parts of water to the above enamel glaze and stir evenly to obtain enamel slurry, which is sprayed on the surface of the coppe...

Embodiment 2

[0052] Embodiment 2 adopts the inventive method to prepare enamel coating

[0053] Take 20 parts of feldspar, 8 parts of quartz sand, 2 parts of chalk, 24 parts of borax, 1.5 parts of sodium nitrate, 0.5 part of potassium dichromate, Al(H 2 PO 4 ) 3 2 parts, 5 parts of fluorite, 3.5 parts of cryolite, 1.0 parts of pyrite, Sb 2 S 3 4 parts, Na 2 MoO 4 0.5 parts, 4 parts of cobalt nitrate and 1 part of nickel nitrate are mixed evenly, ball milled, transferred to an electric furnace and heated at 800°C for 40 minutes, heated to 1200°C for 1.5 hours, melted, quenched in water, taken out, and dried. Take 100 parts of glaze, 0.5 part of borax, BaMoO 4 0.5 parts, 7.5 parts of clay, 1 part of bentonite, 1 part of magnesium sulfate, mixed and pulverized to obtain enamel glaze.

[0054] Add 33 parts of water to the above enamel glaze, stir to obtain enamel slurry, spray it on the surface of the copper substrate that has undergone surface pitting corrosion treatment, dry, enam...

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Abstract

The invention belongs to the technical field of enamel materials and particularly relates to a porcelain glaze, an enamel coating of a copper product, and a preparation method of the enamel coating ofthe copper product. Aiming at the problem of poor corrosion resistance of the copper product in high-concentration seawater, silt or an NH3(NH4+) containing salt system, the invention provides the porcelain glaze and the enamel coating prepared from the porcelain glaze. The porcelain glaze comprises 20-22 parts of feldspar, 5-8 parts of quartz sand, 2-4 parts of creta, 24-26 parts of borax, 1.5-2parts of sodium nitrate, 0.5-1 part of potassium dichromate, 2-3 parts of Al(H2PO4)3, 1-1.2 parts of Li2CO3, 5-7 parts of fluorite, 3-5 parts of cryolite, 0.1-0.3 part of sodium fluosilicate, 0.5-1.0part of iron pyrite, 2-4 parts of Sb2S3, 0.5-1 part of Na2MoO4, 3-4 parts of cobalt nitrate, and 1-2 parts of nickel nitrate. The porcelain glaze, the auxiliaries and water are mixed, then sprayed onthe surface of the copper product, and enameled to obtain the enamel coating. The obtained enamel coating is firmly combined with a matrix of the copper product, the corrosion resistance is good, andthe service life is long.

Description

technical field [0001] The invention belongs to the technical field of enamel materials, and in particular relates to an enamel material, an enamel coating for copper products and a preparation method thereof. Background technique [0002] Enamel is an inorganic enamel coated and fired on the surface of a metal base. Enamel coating on the metal surface can prevent metal corrosion, so that the metal will not form an oxide layer on the surface when it is heated and can resist the erosion of various liquids. Enamel products are not only safe and non-toxic, but also easy to wash and clean. They can be widely used as eating utensils and washing utensils in daily life, and under certain conditions, enamel coating on the metal body exhibits high hardness and high temperature resistance. Excellent properties such as wear resistance and insulation make enamel products have a wider range of uses. The enamel layer can also give the product a beautiful appearance and decorate people's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/14C23D5/02
CPCC03C8/14C23D5/02
Inventor 舒明勇尹海英
Owner PANZHIHUA UNIV
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