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Preparation method of enamel plates

A technology of enamel and steel plate, which is applied in the field of preparation of enamel materials, can solve the problems of poor visual effect, easy peeling, poor wear resistance, etc., and achieve the effect of good visual effect, low cost, and no chalk dust pollution

Active Publication Date: 2012-06-27
何玉良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation method of enamel board to solve the problems of poor visual effect, poor wear resistance and easy peeling of enamel board as a writing board.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Steel plate pretreatment: select a steel plate with a thickness of 0.4mm, degrease it in an alkali solution with a temperature of 80°C and a pH value of 8-12; pickling; then immerse in a mixed solution containing 10g of nickel sulfate and 0.5g of boric acid per liter, adjust the pH value of the mixed solution to 4, and the temperature at 60°C. After soaking for 10 minutes, take the steel plate out of the mixed solution; at 20-30°C Rinse in distilled water for 2 to 5 minutes; then soak it in a sodium carbonate solution with a mass percent concentration of 2 to 8% for 15 minutes, neutralize the residual liquid after pickling, and then burn and dry.

[0026] (2) Preparation of enamel glaze: (i) Preparation of bottom glaze powder: take 80g of bottom glaze according to the following weight, 6g of clay, and 30g of water and pour them into a ball mill for grinding. The ground bottom glaze powder suspension is passed through 140 mesh Finely sieve the sifted bottom glaze pow...

Embodiment 2

[0032] (1) Steel plate pretreatment: select a steel plate with a thickness of 1mm, degrease it in an alkali solution with a temperature of 80°C and a pH value of 8-12; Wash; then immerse in a mixed solution containing 10g of nickel sulfate and 0.5g of boric acid per liter, adjust the pH of the mixed solution to 4, and the temperature at 60°C. After soaking for 10 minutes, take the steel plate out of the mixed solution; Rinse in distilled water for 2-5 minutes; then soak it in a sodium carbonate solution with a concentration of 2-8% by mass for 15 minutes, neutralize the residual liquid after pickling, and then burn and dry.

[0033] (2) Preparation of enamel glaze: (i) Preparation of bottom glaze powder: Weigh 80g of bottom glaze, 6g of clay, and 30g of water according to the following weight ratios and pour them into a ball mill for grinding, and the ground muddy liquid particles pass through 140 mesh Finely sieve the sifted bottom glaze powder suspension at a high temperatur...

Embodiment 3

[0039] (1) Steel plate pretreatment: select a steel plate with a thickness of 0.8mm, degrease it in an alkali solution with a temperature of 80°C and a pH value of 8-12; Pickling; then immerse in a mixed solution containing 10g of nickel sulfate and 0.5g of boric acid per liter, adjust the pH value of the mixed solution to 4, and the temperature at 60°C. After soaking for 8 minutes, take the steel plate out of the mixed solution; at 20-30°C Rinse in distilled water for 2 to 5 minutes; then soak it in a sodium carbonate solution with a mass percentage concentration of 2 to 8% for 15 minutes, neutralize the residual liquid after pickling, and then burn and dry.

[0040] (2) Preparation of enamel glaze: (i) Preparation of bottom glaze powder: take 100g of bottom glaze according to the following weight, 8g of clay, and 45g of water and pour them into a ball mill for grinding. The ground bottom glaze powder suspension is passed through 140 mesh Finely sieve the sifted bottom glaze ...

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Abstract

The invention discloses a preparation method of enamel plates, which includes the following steps of A, pretreating a steel plate; B, preparing enamel materials: (i) preparing ground enamel powder and (ii) preparing surface enamel powder; C, spraying prepared ground enamel powder to the surface of the pretreated steel plate uniformly by a coating spraying gun; D, disposing an enamel plate with the ground enamel powder at the temperature ranging from 700 DEG C to 740 DEG C and baking and drying for 2 to 3 minutes so as to form the enamel plate with ground enamel; E, spraying the prepared surface enamel powder to the enamel plate with the ground enamel uniformly by the coating spraying gun so as to form the enamel plate with the surface enamel powder; and F, disposing the enamel plate with the surface enamel powder at the temperature ranging from 680 DEG C to 720 DEG C and baking and drying for 2 to 5 minutes. The preparation method is simple, low in cost and fine in operation, and the enamel plate prepared by the preparation method has the advantages of no chalk powder pollution, cleanness and sanitation, excellent visual effect, durability and wear resistance, long service life and the like, is not easy to be peeled off and can be widely used as writing plates.

Description

technical field [0001] The invention relates to a preparation method of an enamel material, in particular to a preparation method of an enamel board which is especially suitable for teaching, training and conference presentation and writing. Background technique [0002] The enamel plate is a composite material in which the prepared enamel glaze is sprayed and fired, condensed on the base steel plate and firmly combined with the steel plate. It has the advantages of corrosion resistance, smooth and bright surface, good insulation, and convenient installation and maintenance. It is widely used in building walls and ceilings, commercial kiosks, billboards, subway inner walls, and tunnel inner walls. In recent years, people often use it as an ordinary writing board. As an ordinary writing board, enamel board has the advantages of no dust, corrosion resistance, good insulation, and convenient installation and transportation. , making the enamel board also have problems such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23D5/02C23D3/00C03C8/14
Inventor 何玉良
Owner 何玉良
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