CN112939588B - Method for preparing material with high thermal expansion coefficient by utilizing industrial waste through microwave heating - Google Patents
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/66—Specific sintering techniques, e.g. centrifugal sintering
- C04B2235/667—Sintering using wave energy, e.g. microwave sintering
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to a method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating, which adopts fused quartz sagger waste, magnesia clay and kaolin as raw materials, and obtains the thermal expansion coefficient alpha after burdening, ball milling, sieving, drying, granulating, dry-pressing molding, microwave heating and cooling: 15.32X 10 ‑6 /℃～18.66×10 ‑6 Preparation at/° c. The method adopts industrial waste fused quartz sagger as main preparation raw material, adopts microwave sintering, has low production cost, and the thermal expansion coefficient of the product can be matched with that of metal and alloy materials thereof, thereby having wide market prospect.
Description
Technical Field
The invention belongs to the field of inorganic materials, and particularly relates to a method for preparing a material with high thermal expansion coefficient by using industrial waste through microwave heating.
Background
Ceramic materials can be classified as having a low coefficient of expansion (coefficient of expansion α < 2X 10) -6 /° c) material, and medium thermal expansion coefficient (expansion coefficient α =2 to 8 × 10) -6 /° C) material and high thermal expansion coefficient (expansion coefficient alpha > 8 x 10) -6 /° c) material. High expansion coefficient ceramic materials such as zirconia ceramics, steatite ceramics, beryllia ceramics, forsterite ceramics and the like generally have a thermal expansion coefficient of 7.5 to 11X 10 -6 Between/° c, ceramic materials with high expansion coefficients have not been reported. The thermal expansion coefficient of the metal and the alloy material thereof is usually 10-20 x 10 -6 Between/° c. In the modern industrial field, ceramics and metals and alloy materials thereof are often required to be matched, so that the thermal expansion coefficients of the two materials are required to be matched; therefore, the preparation of the ceramic material matched with the thermal expansion coefficient of the metal and the alloy material thereof has important significance. Compared with the conventional heating method, the method for preparing the material by microwave heating can not only reduce the firing temperature by 100-150 ℃ and shorten the firing time, but also improve the performance index of the prepared material.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating, which has the advantages of excellent performance, simple process and low cost.
In order to solve the technical problems, the technical scheme of the invention is as follows: a method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating is characterized by comprising the following steps: the method is characterized in that fused quartz sagger waste, magnesia clay and kaolin are used as raw materials, and a product is obtained after batching, ball milling, sieving, drying, granulation, dry pressing, microwave heating and cooling.
The raw material formula comprises the following components in percentage by mass: 60-65% of fused quartz sagger waste, 20-25% of magnesia clay and 10-15% of kaolin.
The coefficient of thermal expansion α of the article is: 15.32X 10 -6 /℃～18.66×10 -6 /℃。
The ball milling process comprises the following steps: and (3) carrying out wet rapid ball milling for 30 minutes, wherein the rotating speed of the ball mill is 400 rpm, and the ratio of ball material to water is 1.
The sieving process comprises the following steps: the granularity of the milled raw materials is controlled to be 250 meshes, and the screen residue is 0.
The dry pressing forming process comprises the following steps: the molding pressure is 10MPa, and the pressure is maintained for 30 seconds.
The microwave heating temperature is 1200-1250 ℃, the heating time is 1 hour, and the highest temperature is kept for 10 minutes.
The invention has the beneficial effects that:
(1) The invention adopts industrial waste fused quartz sagger which is a container for melting photovoltaic materials in the field of photovoltaic materials, but the sagger becomes waste after being used once, and the ceramic material prepared by using the industrial waste is green and environment-friendly.
(2) The ceramic material prepared by the invention has large thermal expansion coefficient and can be matched with the thermal expansion coefficient of metal and alloy materials thereof.
(3) The invention adopts the microwave heating preparation method, which not only can reduce the sintering temperature and shorten the sintering time, but also can improve the performance index of the prepared material.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the predetermined objects, the following embodiments are combined with the preferred embodiments to describe the detailed implementation, steps, features and effects of the method for preparing high thermal expansion coefficient material by microwave heating using industrial waste material according to the present invention as follows:
example 1:
a method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating comprises the following specific steps:
(1) The materials are prepared according to the mass percentage of the components: 60 percent of fused quartz sagger waste, 25 percent of magnesia clay,
15% of kaolin;
(2) Placing the raw materials in the step (1) into a ball mill for wet-method rapid ball milling for 30 minutes, wherein the rotating speed of the ball mill is 400 r/min, and the proportion of ball material to water is 1;
(3) Sieving the ball-milled pug obtained in the step (2) by a 250-mesh sieve, wherein the residue on the sieve is 0;
(4) Drying the pug treated in the step (3), then granulating, and carrying out dry pressing molding under the molding pressure of 10MPa for 30 seconds;
(5) Placing the sample formed in the step (4) in a microwave electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1200 ℃, the time is 1 hour, and the temperature is kept for 10 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above-mentioned article is: 18.66X 10 -6 /℃。
Example 2:
a method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating comprises the following specific steps:
(1) Preparing the following materials in percentage by mass: 65 percent of fused quartz sagger waste, 20 percent of magnesia clay,
15% of kaolin;
(2) Placing the raw materials in the step (1) into a ball mill for wet rapid ball milling for 30 minutes, wherein the rotating speed of the ball mill is 400 r/min, and the ratio of ball material to water is 1;
(3) Sieving the ball-milled pug obtained in the step (2) by a 250-mesh sieve, wherein the residue on the sieve is 0;
(4) Drying the pug treated in the step (3), then granulating, and carrying out dry pressing molding under the molding pressure of 10MPa for 30 seconds;
(5) Placing the sample formed in the step (4) in a microwave electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1230 ℃, the time is 1 hour, and the temperature is kept for 10 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above-mentioned article is: 18.02X 10 -6 /℃。
Example 3:
a method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating comprises the following specific steps:
(1) The materials are prepared according to the mass percentage of the components: 65 percent of fused quartz sagger waste, 25 percent of magnesia clay,
10% of kaolin;
(2) Placing the raw materials in the step (1) into a ball mill for wet-method rapid ball milling for 30 minutes, wherein the rotating speed of the ball mill is 400 r/min, and the proportion of ball material to water is 1;
(3) Sieving the ball-milled pug obtained in the step (2) by a 250-mesh sieve, wherein the residue is 0;
(4) Drying the pug treated in the step (3), then granulating, and carrying out dry pressing molding under the molding pressure of 10MPa for 30 seconds;
(5) Placing the sample formed in the step (4) in a microwave electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1200 ℃, the time is 1 hour, and the temperature is kept for 10 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above article is: 17.15X 10 -6 /℃。
Example 4:
a method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating comprises the following specific steps:
(1) Preparing the following materials in percentage by mass: 62 percent of fused quartz sagger waste, 23 percent of magnesia clay,
15% of kaolin;
(2) Placing the raw materials in the step (1) into a ball mill for wet-method rapid ball milling for 30 minutes, wherein the rotating speed of the ball mill is 400 r/min, and the proportion of ball material to water is 1;
(3) Sieving the ball-milled pug obtained in the step (2) by a 250-mesh sieve, wherein the residue is 0;
(4) Drying the pug treated in the step (3), then granulating, and carrying out dry pressing molding under the molding pressure of 10MPa for 30 seconds;
(5) Placing the sample formed in the step (4) in a microwave electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1250 ℃, the time is 1 hour, and the temperature is kept for 10 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above article is: 15.32X 10 -6 /℃。
Example 5:
a method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating comprises the following specific steps:
(1) Preparing the following materials in percentage by mass: 65 percent of fused quartz sagger waste, 23 percent of magnesia clay,
12% of kaolin;
(2) Placing the raw materials in the step (1) into a ball mill for wet rapid ball milling for 30 minutes, wherein the rotating speed of the ball mill is 400 r/min, and the ratio of ball material to water is 1;
(3) Sieving the ball-milled pug obtained in the step (2) by a 250-mesh sieve, wherein the residue is 0;
(4) Drying the pug treated in the step (3), then granulating, and carrying out dry pressing molding under the molding pressure of 10MPa for 30 seconds;
(5) Placing the sample formed in the step (4) in a microwave electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1250 ℃, the time is 1 hour, and the temperature is kept for 10 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above article is: 16.51X 10 -6 /℃。
The present invention is not intended to be limited to the particular embodiments shown and described, and various modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be included therein.
Claims (5)
1. A method for preparing a material with high thermal expansion coefficient by utilizing industrial waste through microwave heating is characterized by comprising the following steps: the method comprises the following steps of taking fused quartz sagger waste, magnesia clay and kaolin as raw materials, and obtaining a product after batching, ball milling, sieving, drying, granulation, dry pressing, microwave heating and cooling;
the mass fraction of the raw material formula is as follows: 60-65% of fused quartz sagger waste, 20-25% of magnesia clay and 10-15% of kaolin;
the microwave heating temperature is 1200-1250 ℃, the heating time is 1 hour, and the highest temperature is kept for 10 minutes.
2. The method of claim 1, wherein the article has a coefficient of thermal expansion a of: 15.32X 10 -6 /℃～18.66×10 -6 /℃。
3. The method according to claim 1, wherein the ball milling process comprises: and (3) carrying out wet rapid ball milling for 30 minutes, wherein the rotating speed of the ball mill is 400 rpm, and the ratio of ball material to water is 1.
4. The method according to claim 1, wherein the screening process is: the granularity of the milled raw materials is controlled to be 250 meshes, and the screen residue is 0.
5. The method according to claim 1, wherein the dry press molding process comprises: the molding pressure is 10MPa, and the pressure is maintained for 30 seconds.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003221270A (en) * | 2002-01-29 | 2003-08-05 | Ishizuka Glass Co Ltd | Ceramic material |
| JP2005225739A (en) * | 2004-02-16 | 2005-08-25 | Inax Corp | Ceramics sintered compact having high coefficient of thermal expansion, its manufacturing method, and regulation method of its coefficient of thermal expansion |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR890002695B1 (en) * | 1985-12-06 | 1989-07-24 | 가부시키가이샤 히타치세이사쿠쇼 | High thermal expansion coefficient ceramic sinter and composite body of the same and metal |
| CN100558673C (en) * | 2006-11-15 | 2009-11-11 | 中材高新材料股份有限公司 | Isostatic pressing prepares the method for quartz-ceramics |
| CN103467078B (en) * | 2013-08-16 | 2015-06-03 | 景德镇陶瓷学院 | Preparation method of cordierite material |
| CN104860712B (en) * | 2015-04-14 | 2017-05-31 | 江苏浩特科技有限公司 | A kind of method for preparing light porous heat-insulated aggregate using discarded fused silica crucible |
| CN104891971A (en) * | 2015-05-20 | 2015-09-09 | 南通路博石英材料有限公司 | Manufacturing method of high-purity quartz ceramic slurry |
| CN106904953B (en) * | 2017-03-24 | 2021-01-01 | 电子科技大学 | High-thermal-expansion-coefficient ceramic material for high-density packaging and preparation method thereof |
| CN107324654B (en) * | 2017-07-17 | 2020-01-03 | 中国轻工业陶瓷研究所 | Lead-free pink snow white pigment and application method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003221270A (en) * | 2002-01-29 | 2003-08-05 | Ishizuka Glass Co Ltd | Ceramic material |
| JP2005225739A (en) * | 2004-02-16 | 2005-08-25 | Inax Corp | Ceramics sintered compact having high coefficient of thermal expansion, its manufacturing method, and regulation method of its coefficient of thermal expansion |
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