Green ceramic glaze and application thereof

Abstract

The application discloses a kind of green ceramic glaze and its application, belong to ceramic technical field.Green pigment and ceramic glaze are included, the ceramic glaze includes the following components according to mass fraction: waste ceramic powder 10~15 parts, Longyan kaolin 11~17 parts, nepheline syenite 9~14 parts, calcite 14~16 parts, magnesium oxide 6~8 parts, bauxite 12~18 parts, ammonium hexafluorozirconate 9~13 parts, mica stone 12~14 parts, and niobium pentoxide 6~9 parts.Green ceramic product is prepared for testing, and all pass low concentration acid and alkali test, and in thermal shock resistance test, 180 DEG C to 20 DEG C heat exchange once does not crack.Not only that, but also high gloss green glaze, and the bending strength is all higher than 55.3MPa.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of ceramics, and particularly relates to a green ceramic glaze and application thereof. BACKGROUND

[0002] There are many ceramic products on the market, and each has a unique color. Most people will choose ceramic products of different colors according to actual needs. Among them, in some leisure places, there are some green ceramic products among green plants, which are used for decoration or to hide small electronic devices, and are not only beautiful but also protect the electronic devices.

[0003] Chinese patent application No. 202010341054.X discloses a preparation method of a pine green ceramic glaze. The glaze surface is composed of dredged sediment dry powder, strontium carbonate and nano copper oxide. The three components are fired to form a green glaze surface.

[0004] In the above patent technology, although a green glaze surface is formed, the three components are difficult to meet the needs of consumers for other properties of ceramic products.

[0005] Therefore, it is necessary to provide a ceramic product with a green glaze surface, and the glaze surface has low-concentration acid and alkali resistance and can be used outdoors. SUMMARY

[0006] The purpose of the present application is to overcome the shortcomings of the prior art and provide a ceramic product with a green glaze surface, and the glaze surface has low-concentration acid and alkali resistance and can be used outdoors.

[0007] The application adopts the following technical solutions:

[0008] A green ceramic glaze includes green pigment and ceramic glaze. The ceramic glaze includes the following components in parts by mass: 10-15 parts of waste ceramic powder, 11-17 parts of Longyan kaolin, 8-11 parts of quartz, 6-7 parts of lapis lazuli, 9-14 parts of nepheline syenite, 14-16 parts of calcite, 6-8 parts of magnesium oxide, 12-18 parts of bauxite, 9-13 parts of hexafluorozirconate, 12-14 parts of mica stone, and 6-9 parts of niobium pentoxide.

[0009] The green ceramic glaze is applied to the surface of a ceramic body. The green ceramic glaze is made into glaze water and coated on the surface of the ceramic body. After firing, a green ceramic product is obtained.

[0010] Further, the specific process of making glaze water is as follows:

[0011] S1, material preparation

[0012] The waste ceramic powder, Longyan kaolin, nepheline syenite, calcite, magnesium oxide, bauxite, mica stone and di-niobium pentoxide are crushed and ball milled according to the mass fraction to obtain a ball mill material;

[0013] S2, pre-burning

[0014] The ball mill material obtained in S1 is subjected to pressure filtration and then pre-burning to obtain a pre-burning material;

[0015] S3, glaze adjusting

[0016] The green pigment, ammonium hexafluorozirconate and the pre-burning material obtained in S2 are sequentially added into the stirring warm water to obtain glaze water, and then the Baumé degree of the glaze water is adjusted.

[0017] Further, the Baumé degree is 45-49.

[0018] Further, when the glaze water is coated on the surface of the ceramic body, it is coated once, then dried once, coated again, and then dried again to obtain a ceramic semi-finished product.

[0019] Further, the first drying temperature is 40-45 DEG C, the first drying time is 30-60 min, the second drying temperature is 50-60 DEG C, and the second drying time is 30-40 min.

[0020] Further, the firing process is specifically as follows: the obtained ceramic semi-finished product is subjected to constant temperature at 400-480 DEG C for 30-50 min, constant temperature at 700-750 DEG C for 1-1.5 h, constant temperature at 900-1000 DEG C for 1-1.5 h, and finally constant temperature at 1280-1300 DEG C for 2-3 h, and then naturally cooled to obtain a green ceramic product.

[0021] Further, in the firing process, the temperature is uniformly increased at a rate of 2-3 DEG C / min.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] First, the applicant does not waste some waste products in the production process, but also adds waste ceramic powder to recycle and save costs.

[0024] Second, in order to improve the effect of the glaze surface, the ammonium hexafluorozirconate with improved corrosion resistance is used in combination with bauxite, mica stone, quartz, lapis lazuli and di-niobium pentoxide to further improve the strength of the glaze surface. DETAILED DESCRIPTION

[0025] The raw materials used in the present application are all commercially available, wherein the green pigment is an existing product on the market.

[0026] Embodiment 1

[0027] A green ceramic glaze, comprising a green pigment and a ceramic glaze, the ceramic glaze comprising the following components in parts by mass: 10 parts of waste ceramic powder, 11 parts of Longyan kaolin, 8 parts of quartz, 6 parts of lapis lazuli, 9 parts of nepheline syenite, 14 parts of calcite, 6 parts of magnesium oxide, 12 parts of bauxite, 9 parts of ammonium hexafluorozirconate, 12 parts of mica stone, and 6 parts of niobium pentoxide.

[0028] The green ceramic glaze is made into glaze water and coated on the surface of a ceramic body, and after firing, a green ceramic product is obtained.

[0029] The specific process of making glaze water is as follows:

[0030] S1, material preparation

[0031] According to the mass fraction, the waste ceramic powder, Longyan kaolin, nepheline syenite, calcite, magnesium oxide, bauxite, mica stone, and niobium pentoxide are crushed and ball milled to obtain a ball mill;

[0032] S2, pre-burning

[0033] The ball mill obtained in S1 is pressure filtered and then pre-burned to obtain a pre-burned material;

[0034] S3, glaze adjustment

[0035] According to the mass fraction, the green pigment, ammonium hexafluorozirconate, and the pre-burned material obtained in S2 are sequentially added to the warm water in the stirring to obtain glaze water, and then the glaze water is adjusted to a Baume degree of 45.

[0036] When the glaze water is coated on the surface of the ceramic body, it is coated once, and then dried once, with a first drying temperature of 40℃ and a first drying time of 30min;

[0037] It is coated again and then dried again, with a second drying temperature of 50℃ and a second drying time of 30min, to obtain a ceramic semi-finished product.

[0038] The firing process is as follows: the obtained ceramic semi-finished product is subjected to constant temperature at 400℃ for 30min, constant temperature at 700℃ for 1h, constant temperature at 900℃ for 1h, and finally constant temperature at 1280℃ for 2h, and then naturally cooled to obtain a green ceramic product.

[0039] During the firing process, the temperature is uniformly increased at a rate of 2℃ / min.

[0040] Embodiment 2

[0041] A green ceramic glaze comprises a green pigment and a ceramic glaze, the ceramic glaze comprises the following components in parts by mass: waste ceramic powder 15 parts, Longyan kaolin 17 parts, quartz 11 parts, lapis lazuli 7 parts, nepheline syenite 14 parts, calcite 16 parts, magnesium oxide 8 parts, bauxite 18 parts, ammonium hexafluorozirconate 13 parts, mica stone 14 parts, and niobium pentoxide 9 parts.

[0042] The green ceramic glaze is made into glaze water and coated on the surface of a ceramic body, and after firing, a green ceramic product is obtained.

[0043] The specific process of making glaze water is as follows:

[0044] S1, material preparation

[0045] The waste ceramic powder, Longyan kaolin, nepheline syenite, calcite, magnesium oxide, bauxite, mica stone, and niobium pentoxide are crushed and ball milled according to the mass fraction to obtain a ball mill;

[0046] S2, pre-burning

[0047] The ball mill obtained in S1 is pressure filtered and then pre-burned to obtain a pre-burned material;

[0048] S3, glaze adjustment

[0049] The green pigment, ammonium hexafluorozirconate, and the pre-burned material obtained in S2 are sequentially added to the warm water in the stirring according to the mass fraction to obtain glaze water, and then the glaze water is adjusted to a Baume degree of 49.

[0050] When the glaze water is coated on the surface of the ceramic body, it is coated once, and then dried once, with a first drying temperature of 45℃ and a first drying time of 60min;

[0051] It is coated again and then dried again, with a second drying temperature of 50-60℃ and a second drying time of 40min, to obtain a ceramic semi-finished product.

[0052] The firing process is as follows: the obtained ceramic semi-finished product is subjected to constant temperature at 480℃ for 50min, constant temperature at 750℃ for 1.5h, constant temperature at 1000℃ for 1.5h, and finally constant temperature at 1300℃ for 3h, and then naturally cooled to obtain a green ceramic product.

[0053] During the firing process, the temperature is uniformly increased at a rate of 3℃ / min.

[0054] Example 3

[0055] A green ceramic glaze comprises a green pigment and a ceramic glaze, the ceramic glaze comprises the following components in parts by mass: waste ceramic powder 13 parts, Longyan kaolin 15 parts, quartz 9 parts, lapis lazuli 7 parts, nepheline syenite 11 parts, calcite 15 parts, magnesium oxide 7 parts, bauxite 15 parts, ammonium hexafluorozirconate 11 parts, mica stone 13 parts, and niobium pentoxide 8 parts.

[0056] The green ceramic glaze is made into glaze water and coated on the surface of a ceramic body, and after firing, a green ceramic product is obtained.

[0057] The specific process of making glaze water is as follows:

[0058] S1, material preparation

[0059] According to the mass fraction, the waste ceramic powder, Longyan kaolin, nepheline syenite, calcite, magnesium oxide, bauxite, mica stone, and niobium pentoxide are crushed and ball milled to obtain a ball mill;

[0060] S2, pre-burning

[0061] The ball mill obtained in S1 is pressure filtered and then pre-burned to obtain a pre-burned material;

[0062] S3, glaze adjustment

[0063] According to the mass fraction, the green pigment, ammonium hexafluorozirconate, and the pre-burned material obtained in S2 are sequentially added to the warm water in the stirring to obtain glaze water, and then the glaze water is adjusted to a Baume degree of 47.

[0064] When the glaze water is coated on the surface of the ceramic body, it is coated once, and then dried once, with a first drying temperature of 40℃ and a first drying time of 60min;

[0065] It is coated again and then dried again, with a second drying temperature of 55℃ and a second drying time of 35min, to obtain a ceramic semi-finished product.

[0066] The firing process is as follows: the obtained ceramic semi-finished product is subjected to constant temperature at 450℃ for 40min, constant temperature at 720℃ for 1h, constant temperature at 950℃ for 1.5h, and finally constant temperature at 1290℃ for 3h, and then naturally cooled to obtain a green ceramic product.

[0067] During the firing process, the temperature is uniformly increased at a rate of 2.5℃ / min.

[0068] The green ceramic products obtained in Examples 1-3 are detected, all of which pass the low-concentration acid and alkali resistance test, and in the thermal shock resistance test, the product does not crack once when the temperature is exchanged from 180℃ to 20℃.

[0069] Moreover, the green glaze has high glossiness, and the bending strength is higher than 55.3 MPa.

[0070] The above is the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can make several improvements and refinements, these improvements and refinements are also considered the scope of the present application.

Claims

1. A ceramic article prepared from a green ceramic glaze, characterized by, The green ceramic glaze comprises a green pigment and a ceramic glaze, and the ceramic glaze comprises the following components in parts by mass: 10-15 parts of waste ceramic powder, 11-17 parts of Longyan kaolin, 8-11 parts of quartz, 6-7 parts of lapis lazuli, 9-14 parts of nepheline syenite, 14-16 parts of calcite, 6-8 parts of magnesium oxide, 12-18 parts of bauxite, 9-13 parts of ammonium hexafluorozirconate, 12-14 parts of mica stone, and 6-9 parts of niobium pentoxide. The green ceramic glaze is made into glaze water and coated on the surface of a ceramic body, and a green ceramic product is obtained after firing. The specific process of making the glaze water is as follows: S1, preparing materials The waste ceramic powder, Longyan kaolin, nepheline syenite, calcite, magnesium oxide, bauxite, mica stone, and niobium pentoxide are crushed and ball milled according to the mass fraction to obtain a ball mill material; S2, pre-burning The ball mill material obtained in S1 is pressure-filtered and then pre-burned to obtain a pre-burned material; S3, glaze adjusting The green pigment, ammonium hexafluorozirconate, and the pre-burned material obtained in S2 are sequentially added to warm water in stirring according to the mass fraction to obtain glaze water, and then the glaze water is adjusted to a specific gravity.

2. A ceramic article prepared from the green ceramic glaze according to claim 1, characterized in that, The specific gravity is 45-49.

3. The ceramic article prepared from the green ceramic glaze according to claim 1, characterized in that, When the glaze water is coated on the surface of a ceramic body, it is coated once, then dried once, coated again, and then dried again to obtain a ceramic semi-finished product.

4. A ceramic article prepared from the green ceramic glaze of claim 3, wherein, The first drying temperature is 40-45℃, and the first drying time is 30-60 min; the second drying temperature is 50-60℃, and the second drying time is 30-40 min.

5. The ceramic article prepared from the green ceramic glaze according to claim 3, characterized in that, The firing process is as follows: the obtained ceramic semi-finished product is subjected to constant temperature at 400-480℃ for 30-50 min, constant temperature at 700-750℃ for 1-1.5 h, constant temperature at 900-1000℃ for 1-1.5 h, and finally constant temperature at 1280-1300℃ for 2-3 h, and then naturally cooled to obtain a green ceramic product.

6. The ceramic article prepared from the green ceramic glaze according to claim 1, characterized in that, In the firing process, the temperature is uniformly increased at a rate of 2-3℃ / min.