WO2022041787A1

WO2022041787A1 - Manufacturing method of enamel decorative panel having jade-like texture and mirror surface effect

Info

Publication number: WO2022041787A1
Application number: PCT/CN2021/087722
Authority: WO
Inventors: 曹益亭; 张军; 傅昂挺
Original assignee: 浙江开尔新材料股份有限公司
Priority date: 2020-08-24
Filing date: 2021-04-16
Publication date: 2022-03-03
Also published as: CN112108347A

Abstract

Disclosed is a manufacturing method of an enamel decorative panel having a jade-like texture and a mirror surface effect, comprising the following steps: (1) applying porcelain glaze to an upper surface of a steel panel by means of an electrostatic dry process or a wet process to form a base glaze layer; (2) spraying a pigment layer on the base glaze layer of step (1) and then drying; (3) spraying a transparent glaze layer on the upper surface of the dried steel panel of step (2), and firing to obtain an original enamel panel; (4) grinding and polishing the upper surface of the original enamel panel to obtain an enamel panel having a jade-like texture and a mirror surface effect. By grinding the upper surface of the original enamel panel, surface defects such as orange peel effects, chalking, cratering, and spray gun marks are removed, and then the glaze surface is polished to obtain the enamel decorative panel having a smooth and shiny surface, a transparent surface, a jade-like texture and a mirror surface effect. The aesthetics and the texture of the enamel decorative panel are improved, so that the product has higher market competitiveness.

Description

A kind of manufacturing method of enamel decorative plate with jade texture and mirror effect

technical field

The invention relates to the technical field of manufacture of decorative materials, in particular to a manufacture method of an enamel decorative plate with jade texture and mirror effect.

Background technique

With the continuous innovation of science and technology, a variety of new materials have been developed by scientific researchers according to the needs of the market. In particular, the development of home improvement, building curtain wall and other industries is changing with each passing day, and various new materials with excellent performance are emerging one after another. The enamel plate is a composite material organically combined with two different materials such as metal material and glass enamel at high temperature. It has the advantages of steel strength and extensibility, acid and alkali corrosion resistance of glass, not easy to be polluted, and easy to clean. It is widely used in chemical industry, architectural decoration, various road signs, billboards and various office report notice boards, vehicle and ship interior decoration, household appliance shells and components and various kitchen supplies, etc., and the market is broad. With the rapid development of the economy and the improvement of people's living standards, people's requirements for enamel products are getting higher and higher, not only in pursuit of its own performance, but also in demand for its beauty, diversity and more High-end texture.

However, in the process of spraying the traditional enamel plate, there are often surface defects such as orange peel, pink spot, powder concave, gun print, etc., which not only reduces the aesthetics of the enamel plate, but also greatly reduces its texture, which cannot be satisfied. the needs of the people.

Therefore, how to provide a method for producing an enamel decorative plate with a jade texture and a mirror effect, which is beautiful in appearance and high in texture, is an urgent problem for those skilled in the art to solve.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a method for producing an enamel decorative plate with jade texture and mirror effect, which is beautiful and has a high-quality enamel plate.

In order to achieve the above object, the present invention adopts the following technical solutions:

A manufacturing method of an enamel decorative plate with jade texture and mirror effect, comprising the following steps:

(1) The enamel is applied to the upper surface of the steel plate by an electrostatic dry process or a wet process to form a primer layer;

(2) on the bottom glaze layer in the described step (1), spray the pigment layer, then dry;

(3) spraying a transparent glaze layer on the upper surface of the steel plate after drying in the step (2), and then firing to obtain the original enamel plate;

(4) grinding and polishing the upper surface of the original enamel plate to obtain an enamel plate with jade texture and mirror effect.

As can be seen from the above technical solutions, compared with the prior art, the present invention discloses and provides a method for making an enamel decorative plate with jade texture and mirror effect. Surface defects such as powder spots, powder concave, gun prints, etc., and then polished and glazed to obtain a smooth and bright surface, and the surface is transparent. The beauty and texture of the enamel decorative board make the product more competitive.

Further, the thickness of the bottom glaze layer in the step (1) is 80-150um.

Further, the specific method of the step (2) is: spray the pigment aqueous solution on the vertical steel plate with a 0.8mm diameter pneumatic spray gun, the spray thickness is 20-50 μm, and the solution is formed on the steel plate to form a certain sag, Make the pigment form a certain natural pattern on the surface of the steel plate, and then put it into a drying furnace for drying. The drying temperature is 110-140°C, and the drying time is 5-10min.

Further, the specific method of the step (3) is: spraying a transparent glaze on the upper surface of the dried steel plate with a 0.8mm caliber spray gun, and its spray thickness is 100-150 μm, and then putting it into a firing furnace for firing, the The firing temperature is 820℃, and the firing time is 4min. After natural cooling, a transparent glaze with a thickness of 140-200μm is sprayed once, and then placed in the firing furnace for firing. The firing temperature is 820°C, and the firing time is 4min, the original enamel plate can be obtained at this time.

Further, the specific method of the step (4) is: first, use a thickness gauge to measure the overall thickness of the coated enamel plate original, determine the thickness range of the porcelain layer that needs to be polished and removed, and then use an automatic polishing machine to carry out the overall thickness measurement. Preliminary grinding. Specifically, a 600-mesh polishing grinding wheel is used for preliminary grinding. The grinding speed is 2.5m/min and the grinding thickness is 20-30 μm; after completion, a 1000-mesh polishing grinding wheel is selected for secondary grinding according to the surface conditions. The grinding thickness is 2m/min, and the grinding thickness is 10-20μm; then change the felt reel with diamond paste for careful polishing, that is, first apply the diamond paste evenly on the original surface of the enamel plate, and then select a 1800-mesh felt reel at a speed of 1.5m/min After polishing, the 3000-mesh felt reel is replaced with diamond paste for another polishing. The surface roughness Ra of the polished enamel plate is 0.02-0.05um.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The embodiment of the present invention discloses a method for making an enamel decorative plate with jade texture and mirror effect, comprising the following steps:

(1) The steel plate is made of 1.0-2.0mm thick enamel special low-carbon steel, and the enamel is applied to the upper surface of the steel plate by an electrostatic dry process or a wet process on the upper surface of the steel plate to form an 80-150 μm thick primer layer;

(2) Use a 0.8mm caliber pneumatic spray gun to spray the pigment aqueous solution on the upper surface of the vertical steel plate, with a spray thickness of 20-50 μm, and make the solution form a certain sag on the steel plate, so that the pigment forms a certain natural color on the steel plate surface. texture, and then put it into a drying oven for drying, the drying temperature is 110-140 ℃, and the drying time is 5-10min;

(3) Use a 0.8mm diameter spray gun to spray a transparent glaze on the upper surface of the dried steel plate with a spray thickness of 100-150 μm, and then put it into a firing furnace for firing. The firing temperature is 820°C and the firing time is 4min, after natural cooling, spray a transparent glaze with a thickness of 140-200μm, and then put it into the firing furnace for firing. The firing temperature is 820 °C and the firing time is 4 minutes. At this time, the original enamel plate can be obtained;

(4) Use a thickness gauge to measure the overall thickness of the coated enamel plate to determine the thickness range of the porcelain layer that needs to be polished and removed, and then use an automatic polishing machine for preliminary polishing. Specifically, use a 600-mesh polishing wheel for polishing. Preliminary grinding, the grinding speed is 2.5m/min, and the grinding thickness is 20-30μm; after completion, a 1000-mesh polishing wheel is selected for secondary grinding treatment according to the surface conditions, the grinding speed is 2m/min, and the grinding thickness is 10-20μm; Then change the felt reel with diamond paste for meticulous polishing, that is, first apply the diamond paste evenly on the original surface of the enamel plate, then select a 1800-mesh felt reel for polishing at a speed of 1.5m/min, and then replace it with a 3000-mesh felt reel. The diamond paste is polished again, and the surface roughness Ra of the polished enamel plate is 0.02-0.05um.

In the preparation method of the enamel decorative plate of the present invention, firstly, the sheet metal workshop shapes the steel plate base material, and then the steel plate base material is coated with enamel glaze for many times (≥3 times) to form an enamel layer, and then the enamel layer is formed on the basis of the enamel layer. Surface treatment (grinding, polishing) is carried out on the enamel plate to remove all the defects (such as orange peel, pink spot, powder concave, gun print, etc.) generated in the production of the enamel plate, so that the enamel plate surface can truly achieve the texture and mirror effect of porcelain jade. At the same time, it has the performance of enamel, which makes the product more competitive in the face of other materials, and is conducive to promoting my country's new enamel products to occupy the high-end market, improving the surface refinement of enamel products, and improving the use of enamel products. Diversified development.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

A method for making an enamel decorative plate with jade texture and mirror effect, characterized in that it comprises the following steps:

(1) The enamel is applied to the upper surface of the steel plate by an electrostatic dry process or a wet process to form a primer layer;

(2) on the bottom glaze layer in the described step (1), spray the pigment layer, then dry;

(3) spraying a transparent glaze layer on the upper surface of the steel plate after drying in the step (2), and then firing to obtain the original enamel plate;

(4) grinding and polishing the upper surface of the original enamel plate to obtain an enamel plate with jade texture and mirror effect.
The method for making an enamel decorative plate with jade texture and mirror effect according to claim 1, wherein the thickness of the bottom glaze layer in the step (1) is 80-150um.
A kind of preparation method of the enamel decorative plate with jade texture and mirror effect according to claim 1, is characterized in that, the concrete method of described step (2) is: with 0.8mm diameter pneumatic spray gun, the pigment aqueous solution is sprayed on On the vertical steel plate, the spray thickness is 20-50μm, and the solution will form a certain sag on the steel plate, so that the pigment forms a certain natural pattern on the surface of the steel plate, and then put it into a drying furnace for drying. The drying temperature is 110-140℃, and the drying time is 5-10min.
A kind of manufacturing method of the enamel decorative plate with jade texture and mirror effect according to claim 1, is characterized in that, the concrete method of described step (3) is: use 0.8mm diameter spray gun to dry the steel plate after drying The upper surface is sprayed with a transparent glaze with a thickness of 100-150μm, and then placed in a firing furnace for firing. The firing temperature is 820°C, and the firing time is 4min. After natural cooling, spray a thickness of 140-200μm. The transparent glaze is then put into the firing furnace for firing. The firing temperature is 820°C and the firing time is 4 minutes. At this time, the original enamel plate can be obtained.
The method for making an enamel decorative plate with jade texture and mirror effect according to claim 1, wherein the specific method of the step (4) is: first, use a thickness gauge to measure the coated The overall thickness of the original enamel plate is measured to determine the thickness range of the porcelain layer to be removed by grinding, and then preliminary grinding is carried out with an automatic polishing machine. Specifically, a 600-mesh polishing wheel is used for preliminary grinding. The thickness is 20-30μm; after completion, a 1000-mesh polishing grinding wheel is selected for secondary grinding treatment according to the surface condition, the grinding speed is 2m/min, and the grinding thickness is 10-20μm; Apply the diamond paste evenly on the surface of the original enamel plate, then select a 1800-mesh felt reel for polishing at a speed of 1.5m/min, and then replace the 3000-mesh felt reel with the diamond paste for polishing again. The surface roughness Ra is 0.02-0.05um.