Heat-resisting high-strength ceramic product and preparation method thereof

Abstract

The invention belongs to the ceramic field, and particularly relates to a heat-resisting high-strength ceramic product and a preparation method thereof. The heat-resisting high-strength ceramic product is made from the following raw materials by weight: 20-30 parts of aluminum oxide, 10-15 parts of nano calcium carbonate, 5-10 parts of red feldspar, 5-10 parts of kaolin, 20-25 parts of potash feldspar, 5-8 parts of wollastonite, 10-15 parts of blue feldspar, 10-15 parts of quartz, 5-8 parts of chromium hemitrioxide, 15-20 parts of spodumene, and 1-1.5 parts of nano cerium oxide. The preparation method comprises the steps of weighing, grinding, filtering, drying a blank, washing, glazing, firing and so on. The ceramic product has the characteristics of low coefficient of thermal expansion, and strong thermal shock resistance, is not easily broken in the heat exchange process, and can be used under the harsh environment.

Description

Technical field

[0001] The invention belongs to the field of ceramics, and specifically relates to a heat-resistant high-strength ceramic product and a preparation method thereof. Background technique

[0002] The ceramics prepared on the market are not ideal in terms of wear resistance and high temperature resistance. The research on the heat-resistant high-strength ceramic products produced by alumina ceramics has always been a problem in the field of daily ceramics. The existing heat-resistant high-strength ceramic products , Usually only reach 400-600℃. When consumers use this kind of ceramic products, the food is often cooked quickly and the ceramic products will crack. Not only is the food material wasted, but also has great safety risks; and the thermal expansion coefficient is high. , The thermal shock resistance is poor, the heat exchange is easy to break, and it cannot be used in harsh environments. Summary of the invention

[0003] Based on the defects of the prior art...

Examples

Embodiment 1

[0014] Example 1: A heat-resistant and high-strength ceramic product prepared from the following raw materials in parts by weight: aluminum oxide: 20 parts, nano-calcium carbonate: 10 parts, andalusite: 5 parts, kaolin: 5 parts, potassium feldspar: 20 parts, wollastonite: 5 parts, feldspar: 10 parts, quartz: 10 parts, chromium oxide: 5 parts, spodumene: 15 parts, nano-cerium oxide: 1 part.

[0015] A method for preparing the above heat-resistant and high-strength ceramic products includes the following steps: (1) crushing the above-mentioned parts by weight of the raw materials, and passing through a 200-mesh sieve to obtain a mixture;

[0016] (2) The mixture obtained in step (1) is further stirred and mixed evenly, and then added to the ball mill

[0017] After the middle grinding, the grinding material is passed through a 600-mesh sieve, and water is added to make the embryo. The embryo is shaped after iron removal, rough scouring, aging, and scouring treatment;

[0018] (3) After ...

Embodiment 2

[0020] Example 2: A heat-resistant and high-strength ceramic product prepared from raw materials in the following parts by weight: aluminum oxide: 25 parts, nano-calcium carbonate: 12 parts, kaolin: 7 parts, potash feldspar: 22 parts, wollastonite: 6 parts, feldspar: 12 parts, quartz: 13 parts, chromium oxide: 6 parts, spodumene: 18 parts, nano-cerium oxide: 1.2 parts.

[0021] A method for preparing the above heat-resistant and high-strength ceramic products, comprising the following steps: (1) crushing the above-mentioned parts by weight of the raw materials, and passing through a 300-mesh sieve to obtain a mixture;

[0022] (2) The mixture obtained in step (1) is further stirred and mixed evenly, and then added to the ball mill

[0023] After medium grinding, the grinding material is passed through a 700-mesh sieve, and water is added to make the embryo. The embryo is shaped into the embryo after iron removal, rough scouring, aging, and scouring.

[0024] (3) After the embryo body ...

Embodiment 3

[0025] Example 3: A heat-resistant high-strength ceramic product prepared from the following raw materials in parts by weight: aluminum oxide: 30 parts, nano-calcium carbonate: 15 parts, andalusite: 10 parts, kaolin: 10 parts, potash feldspar: 25 parts, wollastonite: 8 parts, feldspar: 15 parts, quartz: 15 parts, chromium oxide: 8 parts, spodumene: 20 parts, nano-cerium oxide: 1.5 parts.

[0026] A method for preparing the above heat-resistant and high-strength ceramic products, comprising the following steps: (1) crushing the above-mentioned parts by weight of the raw materials, and passing through a 300-mesh sieve to obtain a mixture;

[0027] (2) The mixture obtained in step (1) is further stirred and mixed evenly, and then added to the ball mill

[0028] After medium grinding, the grinding material is passed through a 700-mesh sieve, and water is added to make the embryo. The embryo is shaped into the embryo after iron removal, rough scouring, aging, and scouring.

[0029] (3) Aft...

Technical field

[0001] The invention belongs to the field of ceramics, and specifically relates to a heat-resistant high-strength ceramic product and a preparation method thereof. Background technique

[0002] The ceramics prepared on the market are not ideal in terms of wear resistance and high temperature resistance. The research on the heat-resistant high-strength ceramic products produced by alumina ceramics has always been a problem in the field of daily ceramics. The existing heat-resistant high-strength ceramic products , Usually only reach 400-600℃. When consumers use this kind of ceramic products, the food is often cooked quickly and the ceramic products will crack. Not only is the food material wasted, but also has great safety risks; and the thermal expansion coefficient is high. , The thermal shock resistance is poor, the heat exchange is easy to break, and it cannot be used in harsh environments. Summary of the invention

[0003] Based on the defects of the prior art...

Examples

Embodiment 1

[0014] Example 1: A heat-resistant and high-strength ceramic product prepared from the following raw materials in parts by weight: aluminum oxide: 20 parts, nano-calcium carbonate: 10 parts, andalusite: 5 parts, kaolin: 5 parts, potassium feldspar: 20 parts, wollastonite: 5 parts, feldspar: 10 parts, quartz: 10 parts, chromium oxide: 5 parts, spodumene: 15 parts, nano-cerium oxide: 1 part.

[0015] A method for preparing the above heat-resistant and high-strength ceramic products includes the following steps: (1) crushing the above-mentioned parts by weight of the raw materials, and passing through a 200-mesh sieve to obtain a mixture;

[0016] (2) The mixture obtained in step (1) is further stirred and mixed evenly, and then added to the ball mill

[0017] After the middle grinding, the grinding material is passed through a 600-mesh sieve, and water is added to make the embryo. The embryo is shaped after iron removal, rough scouring, aging, and scouring treatment;

[0018] (3) After ...

Embodiment 2

[0020] Example 2: A heat-resistant and high-strength ceramic product prepared from raw materials in the following parts by weight: aluminum oxide: 25 parts, nano-calcium carbonate: 12 parts, kaolin: 7 parts, potash feldspar: 22 parts, wollastonite: 6 parts, feldspar: 12 parts, quartz: 13 parts, chromium oxide: 6 parts, spodumene: 18 parts, nano-cerium oxide: 1.2 parts.

[0021] A method for preparing the above heat-resistant and high-strength ceramic products, comprising the following steps: (1) crushing the above-mentioned parts by weight of the raw materials, and passing through a 300-mesh sieve to obtain a mixture;

[0022] (2) The mixture obtained in step (1) is further stirred and mixed evenly, and then added to the ball mill

[0023] After medium grinding, the grinding material is passed through a 700-mesh sieve, and water is added to make the embryo. The embryo is shaped into the embryo after iron removal, rough scouring, aging, and scouring.

[0024] (3) After the embryo body ...

Embodiment 3

[0025] Example 3: A heat-resistant high-strength ceramic product prepared from the following raw materials in parts by weight: aluminum oxide: 30 parts, nano-calcium carbonate: 15 parts, andalusite: 10 parts, kaolin: 10 parts, potash feldspar: 25 parts, wollastonite: 8 parts, feldspar: 15 parts, quartz: 15 parts, chromium oxide: 8 parts, spodumene: 20 parts, nano-cerium oxide: 1.5 parts.

[0026] A method for preparing the above heat-resistant and high-strength ceramic products, comprising the following steps: (1) crushing the above-mentioned parts by weight of the raw materials, and passing through a 300-mesh sieve to obtain a mixture;

[0027] (2) The mixture obtained in step (1) is further stirred and mixed evenly, and then added to the ball mill

[0028] After medium grinding, the grinding material is passed through a 700-mesh sieve, and water is added to make the embryo. The embryo is shaped into the embryo after iron removal, rough scouring, aging, and scouring.

[0029] (3) Aft...