CN115286360B - Production process of medium-temperature laterite ceramic - Google Patents
Production process of medium-temperature laterite ceramic Download PDFInfo
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- CN115286360B CN115286360B CN202210816829.3A CN202210816829A CN115286360B CN 115286360 B CN115286360 B CN 115286360B CN 202210816829 A CN202210816829 A CN 202210816829A CN 115286360 B CN115286360 B CN 115286360B
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Abstract
The invention relates to the technical field of ceramic processing, and particularly discloses a production process of medium-temperature laterite ceramics, which comprises the following steps of: preparing materials: the following raw materials are respectively weighed according to parts by weight: longyan kaolin, potassium feldspar, jingdezan soil, iron blue amphibole, bentonite, perlite, boehmite-diasporite, and zinc oxide; blank manufacturing: mixing the above raw materials, adding water, ball milling, sieving, vacuum defoaming, coarse grinding, aging, refining, and shaping to obtain blank; firing: and naturally drying the green body, and oxidizing and sintering at the highest sintering temperature of 1230-1250 ℃ to obtain the porcelain red ceramic. The invention is characterized in that the Jingdian soil, the iron blue amphibole, the perlite, the zinc oxide and the boehmite-diasporite are specially added on the basic materials of the Longyan kaolin, the bentonite and the potassium feldspar, and the porcelain red ceramic can be prepared by medium-temperature sectional oxidation sintering, thus the glazing is avoided, the cost is reduced, the water absorption rate is low, the strength is high, and the thermal shock resistance is good, and the porcelain red ceramic can be used as a craft and a daily ceramic.
Description
Technical Field
The invention belongs to the technical field of ceramic processing, and particularly relates to a production process of medium-temperature laterite ceramic.
Background
Ceramic materials are a class of inorganic nonmetallic materials made from natural or synthetic compounds by forming and high temperature sintering. It has the advantages of high melting point, high hardness, high wear resistance, oxidation resistance, etc. Wherein, red pottery is taken as a main material, gray pottery and black pottery are taken as secondary materials, the red pottery is divided into fine mud red pottery and sand inclusion red pottery, and the main raw materials are clay. The firing principle is as follows: when the ceramic blank is put into a kiln for roasting, oxidizing flame gas is adopted, so that the iron of Tao Taizhong is converted into ferric iron, and the surface of the ceramic blank is red.
The existing laterite ceramic formula has the following defects: the highest firing temperature reaches 1100 ℃, and the prepared red ceramic has high water absorption and is easy to damage; the highest firing temperature reaches 1180 ℃, which is easy to turn black, and can only be shaped in a simple way.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a production process of medium-temperature laterite ceramics, which has low water absorption and high strength and is suitable for processing artware and daily ceramics.
In order to solve the technical problems, the invention adopts the following technical scheme:
the production process of the medium-temperature laterite ceramic specifically comprises the following steps:
s1, preparing materials: the following raw materials are respectively weighed according to parts by weight: 30-50 parts of Longyan kaolin, 25-30 parts of potassium feldspar, 10-20 parts of Jingdezan field soil, 10-15 parts of iron blue amphibole, 6-8 parts of bentonite, 5-8 parts of perlite, 4-6 parts of boehmite-boehmite and 2-4 parts of zinc oxide;
s2, blank making: mixing the above raw materials, adding water, ball milling, sieving, vacuum defoaming, coarse grinding, aging, refining, and shaping to obtain blank;
s3, firing: and naturally drying the green body, and oxidizing and sintering at the highest sintering temperature of 1230-1250 ℃ to obtain the porcelain red ceramic.
Preferably, the number of the sieving meshes of the step S2 is 300-500 meshes.
Preferably, the step S3 adopts sectional heating firing, firstly, the temperature is slowly raised to 650-700 ℃ at 3-5 ℃ per minute, the temperature is kept for 1.5-2 hours, then the temperature is raised to 1000-1020 ℃ at 10-12 ℃ per minute, the temperature is kept for 2-3 hours, then the temperature is slowly raised to 1230-1250 ℃ at 3-5 ℃ per minute, the temperature is kept for 60-80 minutes, and the cooling is carried out.
Preferably, the chemical composition of the Jingdezan soil is as follows: 58.6% SiO 2 、23.5％Al 2 O 3 3.2% ferric oxide, 1.3% TiO 2 、1.0％MgO、0.4％CaO、1.4％K 2 O、0.15％Na 2 O, and other components.
Preferably, the chemical composition of the iron blue amphibole is: 55.5% SiO 2 、10.5％Al 2 O 3 18.1% ferric oxide, 0.2% TiO 2 、5.1％MgO、6.8％Na 2 O, and other components.
Preferably, the raw materials in the step S1 are: 45 parts of Longyan kaolin, 25 parts of potassium feldspar, 12 parts of Jingdian soil, 15 parts of iron blue amphibole, 6 parts of bentonite, 6 parts of perlite, 4 parts of boehmite-diasporite and 3.5 parts of zinc oxide.
Compared with the prior art, the invention has the following beneficial effects:
the invention is characterized in that the Jingdian soil, the iron blue amphibole, the perlite, the zinc oxide and the boehmite-diasporite are specially added on the basic materials of the Longyan kaolin, the bentonite and the potassium feldspar, and the porcelain red ceramic can be prepared by medium-temperature sectional oxidation sintering, thus the glazing is avoided, the cost is reduced, the water absorption rate is low, the strength is high, and the thermal shock resistance is good, and the porcelain red ceramic can be used as a craft and a daily ceramic.
Detailed Description
Example 1
The embodiment provides a production process of medium-temperature laterite ceramics, which specifically comprises the following steps:
s1, preparing materials: the following raw materials are respectively weighed according to parts by weight: 45 parts of Longyan kaolin, 25 parts of potassium feldspar, 12 parts of Jingdian soil, 15 parts of iron blue amphibole, 6 parts of bentonite, 6 parts of perlite, 4 parts of boehmite-diasporite and 3.5 parts of zinc oxide. Wherein: the chemical composition of the Jingdian soil is as follows: 58.6% SiO 2 、23.5％Al 2 O 3 3.2% ferric oxide, 1.3% TiO 2 、1.0％MgO、0.4％CaO、1.4％K 2 O、0.15％Na 2 O, and other components. The chemical composition of the iron blue amphibole is as follows: 55.5% SiO 2 、10.5％Al 2 O 3 18.1% ferric oxide, 0.2% TiO 2 、5.1％MgO、6.8％Na 2 O, and other components.
S2, blank making: mixing the above raw materials, adding water, ball milling, sieving with 400 mesh sieve, vacuum defoaming, coarse refining, aging, refining, and shaping to obtain blank;
s3, firing: the blank is naturally dried, oxidized and sintered to obtain the porcelain red ceramic, and the porcelain red ceramic is specifically sintered by sectional heating: slowly heating to 700 ℃ at 3 ℃/min, preserving heat for 100min, then heating to 1000 ℃ at 12 ℃/min, preserving heat for 150min, slowly heating to 1250 ℃ at 4 ℃/min, preserving heat, firing for 60min, and cooling.
Example 2
The embodiment provides a production process of medium-temperature laterite ceramics, which specifically comprises the following steps:
s1, preparing materials: the following raw materials are respectively weighed according to parts by weight: 50 parts of Longyan kaolin, 25 parts of potassium feldspar, 18 parts of Jingdezan field soil, 10 parts of iron blue amphibole, 6 parts of bentonite, 5 parts of perlite, 6 parts of boehmite-diasporite and 4 parts of zinc oxide. Wherein: the chemical composition of the Jingdian soil is as follows: 58.6% SiO 2 、23.5％Al 2 O 3 3.2% ferric oxide, 1.3% TiO 2 、1.0％MgO、0.4％CaO、1.4％K 2 O、0.15％Na 2 O, and other components. The chemical composition of the iron blue amphibole is as follows: 55.5%SiO 2 、10.5％Al 2 O 3 18.1% ferric oxide, 0.2% TiO 2 、5.1％MgO、6.8％Na 2 O, and other components.
S2, blank making: mixing the above raw materials, adding water, ball milling, sieving with 300 mesh sieve, vacuum defoaming, coarse refining, aging, refining, and shaping to obtain blank;
s3, firing: the blank is naturally dried, oxidized and sintered to obtain the porcelain red ceramic, and the porcelain red ceramic is specifically sintered by sectional heating: slowly heating to 650 ℃ at 4 ℃/min, preserving heat for 2 hours, then heating to 1020 ℃ at 12 ℃/min, preserving heat for 2 hours, slowly heating to 1250 ℃ at 3 ℃/min4, preserving heat, firing for 80 minutes, and cooling.
Example 3
The embodiment provides a production process of medium-temperature laterite ceramics, which specifically comprises the following steps:
s1, preparing materials: the following raw materials are respectively weighed according to parts by weight: 35 parts of Longyan kaolin, 30 parts of potassium feldspar, 10 parts of Jingdezhen field soil, 12 parts of iron blue amphibole, 8 parts of bentonite, 8 parts of perlite, 5 parts of boehmite-diasporite and 2 parts of zinc oxide. Wherein: the chemical composition of the Jingdian soil is as follows: 58.6% SiO 2 、23.5％Al 2 O 3 3.2% ferric oxide, 1.3% TiO 2 、1.0％MgO、0.4％CaO、1.4％K 2 O、0.15％Na 2 O, and other components. The chemical composition of the iron blue amphibole is as follows: 55.5% SiO 2 、10.5％Al 2 O 3 18.1% ferric oxide, 0.2% TiO 2 、5.1％MgO、6.8％Na 2 O, and other components.
S2, blank making: mixing the above raw materials, adding water, ball milling, sieving with 500 mesh sieve, vacuum defoaming, coarse refining, aging, refining, and shaping to obtain blank;
s3, firing: the blank is naturally dried, oxidized and sintered to obtain the porcelain red ceramic, and the porcelain red ceramic is specifically sintered by sectional heating: firstly, slowly heating to 700 ℃ at 5 ℃/min, preserving heat for 1.5 hours, then heating to 1000 ℃ at 10 ℃/min, preserving heat for 3 hours, slowly heating to 1230 ℃ at 5 ℃/min, preserving heat and firing for 80 minutes, and cooling.
Comparative example 1
This comparative example 1 differs from example 1 described above in that: 20 parts of calcined talcum powder is added, and 15 parts of iron blue amphibole and 4 parts of boehmite-boehmite are omitted.
Physical properties of the red ceramics of examples 1 to 3 and comparative example 1 were measured, and the measurement results are shown in Table 1.
Table 1: physical property test results of inventive examples 1-3 and comparative example 1
While the basic principles and main features of the invention and advantages of the invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (3)
1. The production process of the medium-temperature laterite ceramic is characterized by comprising the following steps of:
s1, preparing materials: the following raw materials are respectively weighed according to parts by weight: 30-50 parts of Longyan kaolin, 25-30 parts of potassium feldspar, 10-20 parts of Jingdezan field soil, 10-15 parts of iron blue amphibole, 6-8 parts of bentonite, 5-8 parts of perlite, 4-6 parts of boehmite-boehmite and 2-4 parts of zinc oxide;
the chemical composition of the Jingdian soil is as follows: 58.6% SiO 2 、23.5％Al 2 O 3 3.2% ferric oxide, 1.3% TiO 2 、1.0％MgO、0.4％CaO、1.4％K 2 O、0.15％Na 2 O and other components;
the chemical composition of the iron blue amphibole is as follows: 55.5% SiO 2 、10.5％Al 2 O 3 18.1% ferric oxide, 0.2% TiO 2 、5.1％MgO、6.8％Na 2 O and other components;
s2, blank making: mixing the above raw materials, adding water, ball milling, sieving, vacuum defoaming, coarse grinding, aging, refining, and shaping to obtain blank;
s3, firing: naturally drying the green body, and oxidizing and sintering at the highest sintering temperature of 1230-1250 ℃ to obtain the porcelain red ceramic;
the step S3 adopts sectional heating firing, firstly, the temperature is slowly raised to 650-700 ℃ at 3-5 ℃ per minute, the temperature is kept for 1.5-2 hours, then the temperature is raised to 1000-1020 ℃ at 10-12 ℃ per minute, the temperature is kept for 2-3 hours, then the temperature is slowly raised to 1230-1250 ℃ at 3-5 ℃ per minute, the temperature is kept for 60-80 minutes, and the temperature is cooled.
2. The production process of the medium-temperature laterite ceramic according to claim 1, which is characterized in that: the screening mesh number of the step S2 is 300-500 meshes.
3. The production process of the medium-temperature laterite ceramic according to claim 1, which is characterized in that: the raw materials of the step S1 are as follows: 45 parts of Longyan kaolin, 25 parts of potassium feldspar, 12 parts of Jingdian soil, 15 parts of iron blue amphibole, 6 parts of bentonite, 6 parts of perlite, 4 parts of boehmite-diasporite and 3.5 parts of zinc oxide.
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| CN111961354A (en) * | 2020-08-21 | 2020-11-20 | 清远市简一陶瓷有限公司 | Ceramic pigment and application thereof |
| CN112341148A (en) * | 2020-11-10 | 2021-02-09 | 广东萨米特陶瓷有限公司 | Ceramic formula for improving heat conductivity coefficient of ceramic tile and manufacturing method |
| CN114644506A (en) * | 2022-04-08 | 2022-06-21 | 福建省德化县合和陶瓷技术开发有限公司 | Environment-friendly high-whiteness domestic ceramic product and preparation process thereof |
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