CN113087494A - Method for preparing material with high thermal expansion coefficient by using industrial waste - Google Patents
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
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- C04B33/13—Compounding ingredients
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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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
- C04B2235/3445—Magnesium silicates, e.g. forsterite
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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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
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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
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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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
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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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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- Y02P40/00—Technologies relating to the processing of minerals
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Abstract
The invention relates to a method for preparing a material with high thermal expansion coefficient by using industrial waste, which adopts fused quartz sagger waste, calcined talc and kaolin as raw materials, and obtains the thermal expansion coefficient alpha after burdening, ball milling, sieving, drying, granulation, dry pressing molding, sintering and cooling: 14.73X 10‑6/℃～18.38×10‑6Preparation at/° c. The method adopts the industrial waste fused quartz sagger as the main preparation raw material, has low production cost, and the thermal expansion coefficient of the product can be matched with the thermal expansion coefficient 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 a high thermal expansion coefficient by using industrial waste.
Background
Ceramic materials can be classified as having a low coefficient of expansion (coefficient of expansion α < 2X 10) in terms of their coefficient of thermal expansion-6Material at/° c), medium thermal expansion coefficient (expansion coefficient α = 2-8 × 10)-6Material and high coefficient of thermal expansion (coefficient of expansion alpha > 8 x 10)-6/° c) material. The thermal expansion coefficient of the ceramic material with high expansion coefficient, such as zirconia ceramic, steatite ceramic, beryllia ceramic, forsterite ceramic and the like, is usually 7.5-11 multiplied by 10-6Between/° 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 10-6Between/° c. And the modern industrial field is always requiredIn order to match ceramics with metals and their alloys, it is necessary to match the thermal expansion coefficients of the two materials; therefore, the preparation of the ceramic material matched with the thermal expansion coefficient of the metal and the alloy material thereof has important significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for preparing a material with high thermal expansion coefficient by using industrial waste, which has 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 using industrial waste is characterized by comprising the following steps: the fused quartz sagger waste, the calcined talc and the kaolin are used as raw materials, and a product is obtained after burdening, ball milling, sieving, drying, granulation, dry pressing, sintering and cooling.
The mass fraction of the raw material formula is as follows: 55-60% of fused quartz sagger waste, 22-27% of calcined talc and 13-18% of kaolin.
The coefficient of thermal expansion α of the article is: 14.73X 10-6/℃～18.38×10-6/℃。
The ball milling process comprises the following steps: and (3) performing wet rapid ball milling for 30 minutes at the ball mill rotation speed of 400 rpm, wherein the ratio of material balls to water is 1:2: 0.5.
The screening process comprises the following steps: the granularity of the milled raw materials is controlled to be 200 meshes, and the screen residue is 0.
The dry pressing forming process comprises the following steps: the molding pressure is 8MPa, and the pressure is maintained for 30 seconds.
The firing temperature is 1300-1350 ℃, the firing time is 3-4 hours, and the temperature is kept at the highest temperature for 30 minutes.
The invention has the beneficial effects that:
(1) the fused quartz sagger is a container for melting photovoltaic materials in the field of photovoltaic materials, but becomes waste materials after being used once, and the ceramic materials prepared from the industrial waste materials are 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.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following embodiments are combined with the preferred embodiments to describe the specific implementation, steps, features and effects of the method for preparing high thermal expansion coefficient material from industrial waste according to the present invention, as follows:
example 1:
a method for preparing a material with high thermal expansion coefficient by using industrial waste comprises the following specific steps:
(1) the materials are prepared according to the mass percentage of the components: 55 percent of fused quartz sagger waste, 27 percent of calcined talc,
18% of kaolin;
(2) putting 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 ratio of ball material to water is 1:2: 0.5;
(3) sieving the ball-milled pug obtained in the step (2) by a 200-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 8MPa for 30 seconds;
(5) placing the sample formed in the step (4) in a high-temperature electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1300 ℃, the time is 3 hours, and the temperature is kept for 30 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above article is: 18.38X 10-6/℃。
Example 2:
a method for preparing a material with high thermal expansion coefficient by using industrial waste 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, 22 percent of calcined talc,
18% of kaolin;
(2) putting 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 ratio of ball material to water is 1:2: 0.5;
(3) sieving the ball-milled pug obtained in the step (2) by a 200-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 8MPa for 30 seconds;
(5) placing the sample formed in the step (4) in a high-temperature electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1320 ℃, the time is 3.5 hours, and the temperature is kept for 30 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above article is: 17.87X 10-6/℃。
Example 3:
a method for preparing a material with high thermal expansion coefficient by using industrial waste 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, 27 percent of calcined talc,
13% of kaolin;
(2) putting 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 ratio of ball material to water is 1:2: 0.5;
(3) sieving the ball-milled pug obtained in the step (2) by a 200-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 8MPa for 30 seconds;
(5) placing the sample formed in the step (4) in a high-temperature electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1300 ℃, the time is 3 hours, and the temperature is kept for 30 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above article is: 15.35X 10-6/℃。
Example 4:
a method for preparing a material with high thermal expansion coefficient by using industrial waste comprises the following specific steps:
(1) the materials are prepared according to the mass percentage of the components: 58 percent of fused quartz sagger waste and 25 percent of calcined talc,
17% of kaolin;
(2) putting 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 ratio of ball material to water is 1:2: 0.5;
(3) sieving the ball-milled pug obtained in the step (2) by a 200-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 8MPa for 30 seconds;
(5) placing the sample formed in the step (4) in a high-temperature electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1350 ℃, the time is 4 hours, and the temperature is kept for 30 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above article is: 14.73X 10-6/℃。
Example 5:
a method for preparing a material with high thermal expansion coefficient by using industrial waste comprises the following specific steps:
(1) the materials are prepared according to the mass percentage of the components: 59 percent of fused quartz sagger waste, 26 percent of calcined talc,
15% of kaolin;
(2) putting 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 ratio of ball material to water is 1:2: 0.5;
(3) sieving the ball-milled pug obtained in the step (2) by a 200-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 8MPa for 30 seconds;
(5) placing the sample formed in the step (4) in a high-temperature electric furnace for sintering, and then naturally cooling along with the furnace to obtain a product; the maximum temperature of the sintering process is 1350 ℃, the time is 3 hours, and the temperature is kept for 30 minutes at the maximum temperature.
The coefficient of thermal expansion α of the above article is: 16.95X 10-6/℃。
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and scope of the present invention is also included in the present invention.
Claims (7)
1. A method for preparing a material with high thermal expansion coefficient by using industrial waste is characterized by comprising the following steps: the fused quartz sagger waste, the calcined talc and the kaolin are used as raw materials, and a product is obtained after burdening, ball milling, sieving, drying, granulation, dry pressing, sintering and cooling.
2. The method according to claim 1, wherein the raw material formula comprises the following components in percentage by mass: 55-60% of fused quartz sagger waste, 22-27% of calcined talc and 13-18% of kaolin.
3. The method of claim 1, wherein the article has a coefficient of thermal expansion α of: 14.73X 10-6/℃～18.38×10-6/℃。
4. The method according to claim 1, wherein the ball milling process comprises: and (3) performing wet rapid ball milling for 30 minutes at the ball mill rotation speed of 400 rpm, wherein the ratio of material balls to water is 1:2: 0.5.
5. The method according to claim 1, wherein the screening process is: the granularity of the milled raw materials is controlled to be 200 meshes, and the screen residue is 0.
6. The method according to claim 1, wherein the dry press molding process comprises: the molding pressure is 8MPa, and the pressure is maintained for 30 seconds.
7. The method according to claim 1, wherein the firing temperature is 1300 to 1350 ℃, the firing time is 3 to 4 hours, and the maximum temperature is held for 30 minutes.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093017A (en) * | 1975-12-29 | 1978-06-06 | Sherwood Refractories, Inc. | Cores for investment casting process |
| JP2003221270A (en) * | 2002-01-29 | 2003-08-05 | Ishizuka Glass Co Ltd | Ceramic material |
| CN104860712A (en) * | 2015-04-14 | 2015-08-26 | 连云港浩特石英材料有限公司 | Method for preparing microporous lightweight thermal-insulation aggregate with waste fused quartz crucible |
| CN106045323A (en) * | 2016-05-27 | 2016-10-26 | 电子科技大学 | High thermal expansion coefficient ceramic material and preparation method thereof |
| CN107572930A (en) * | 2017-10-10 | 2018-01-12 | 佳木斯大学 | A kind of environment-friendly type concrete building-block and preparation method thereof |
| CN109231796A (en) * | 2017-07-10 | 2019-01-18 | 贺利氏石英玻璃有限两合公司 | The silica glass component of high thermal stability, its corresponding semi-finished product and its production method |
-
2021
- 2021-04-08 CN CN202110376606.5A patent/CN113087494B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093017A (en) * | 1975-12-29 | 1978-06-06 | Sherwood Refractories, Inc. | Cores for investment casting process |
| JP2003221270A (en) * | 2002-01-29 | 2003-08-05 | Ishizuka Glass Co Ltd | Ceramic material |
| CN104860712A (en) * | 2015-04-14 | 2015-08-26 | 连云港浩特石英材料有限公司 | Method for preparing microporous lightweight thermal-insulation aggregate with waste fused quartz crucible |
| CN106045323A (en) * | 2016-05-27 | 2016-10-26 | 电子科技大学 | High thermal expansion coefficient ceramic material and preparation method thereof |
| CN109231796A (en) * | 2017-07-10 | 2019-01-18 | 贺利氏石英玻璃有限两合公司 | The silica glass component of high thermal stability, its corresponding semi-finished product and its production method |
| CN107572930A (en) * | 2017-10-10 | 2018-01-12 | 佳木斯大学 | A kind of environment-friendly type concrete building-block and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| J.J. LIANG 等: ""Effects of Alumina on Cristobalite Crystallization and Properties of Silica-Based Ceramic Cores"", 《JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY》 * |
| 王金淑 等: ""石英向α-方石英转化率研究"", 《中国陶瓷》 * |
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