CN112577851A - Method for improving plasticity of ceramic raw material - Google Patents
Method for improving plasticity of ceramic raw material Download PDFInfo
- Publication number
- CN112577851A CN112577851A CN202011321764.2A CN202011321764A CN112577851A CN 112577851 A CN112577851 A CN 112577851A CN 202011321764 A CN202011321764 A CN 202011321764A CN 112577851 A CN112577851 A CN 112577851A
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- China
- Prior art keywords
- raw material
- ceramic raw
- plasticity
- mud cake
- stirring
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- 239000000919 ceramic Substances 0.000 title claims abstract description 35
- 239000002994 raw material Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 229920002472 Starch Polymers 0.000 claims abstract description 6
- 235000019698 starch Nutrition 0.000 claims abstract description 6
- 239000008107 starch Substances 0.000 claims abstract description 6
- 229920002261 Corn starch Polymers 0.000 claims abstract description 4
- 239000008120 corn starch Substances 0.000 claims abstract description 4
- 229920005552 sodium lignosulfonate Polymers 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 2
- 238000010304 firing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C1/00—Apparatus or methods for obtaining or processing clay
- B28C1/10—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants
- B28C1/14—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom
- B28C1/16—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom for homogenising, e.g. by mixing, kneading ; forcing through slots
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a method for improving plasticity of a ceramic raw material, which is characterized in that one of corn starch, cross-linked starch or sodium lignosulfonate is added into the ceramic raw material according to the proportion of 0.2-0.8 percent of the weight of the ceramic raw material. The invention can improve the plasticity of the ceramic raw material without influencing drying shrinkage by adjusting the adding proportion of the compound. The method has the advantages of simple and easily-obtained materials, simple operation method and suitability for industrial use.
Description
Technical Field
The invention relates to the field of processing of non-metallic ores, in particular to a method for improving plasticity of a ceramic raw material.
Background
Plasticity is a prerequisite for ensuring that ceramic products can be subjected to plastic molding, and is a process basis for preparing different ceramic products from ceramic raw materials. The plasticity raw material mainly plays a role in combination with plasticization in the production process, gives plasticity and slip casting forming performance to the blank, ensures the strength of a dry blank before porcelain forming and various service performances after firing, and is the basis of the porcelain forming. If the plasticity of the ceramic raw material is insufficient, the blank is cracked more during forming, and the product quality is seriously influenced.
Disclosure of Invention
The invention designs a method for improving the plasticity of a ceramic raw material, which improves the plasticity index of the ceramic raw material by more than 20 percent without influencing drying shrinkage.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a method for improving plasticity of a ceramic raw material comprises the following steps: the following compounds were: adding any one of corn starch, cross-linked starch or sodium lignosulfonate into the ceramic raw material in a proportion of 0.2-0.8% of the weight of the ceramic raw material, mixing and stirring uniformly, and performing filter pressing to obtain a mud cake; step two: and (3) controlling the water content of the mud cake in the step one to be 23.5%, measuring drying shrinkage, and measuring the plasticity of the mud cake by a plasticity index method through a microcomputer plasticity tester.
Preferably, the compound added to the ceramic raw material in the step one is added in a manner that: dissolving the compound in water or stirring the mixture evenly in the water, adding the mixture into ceramic raw material slurry with the mass concentration of 15-25%, and mixing and stirring the mixture evenly.
The invention can improve the plasticity of the ceramic raw material without influencing drying shrinkage by adjusting the adding proportion of the compound. The invention has the advantages of simple and easily obtained materials and simple operation method, and is suitable for industrial use.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Example 1
Corn starch which accounts for 0.6 percent of the weight of the ceramic raw material is uniformly stirred in a small amount of water, added into ceramic raw material slurry with the mass concentration of 20 percent, uniformly mixed and stirred, and pressed and filtered into mud cakes. The water content of the mud cake was controlled to 23.5%, drying shrinkage was measured, and plasticity R1 of the mud cake was measured by plasticity index method using KS-B type microcomputer plasticity measuring instrument.
Example 2
Uniformly stirring crosslinked starch which accounts for 0.8 percent of the weight of the ceramic raw material in a small amount of water, adding the mixture into ceramic raw material slurry with the mass concentration of 15 percent, uniformly mixing and stirring, and performing filter pressing to obtain a mud cake. The water content of the mud cake was controlled to 23.5%, drying shrinkage was measured, and plasticity R2 of the mud cake was measured by plasticity index method using KS-B type microcomputer plasticity measuring instrument.
Example 3
Dissolving sodium lignosulfonate 0.2% of the weight of the ceramic raw materials in a small amount of water, adding into ceramic raw material slurry with the mass concentration of 20%, mixing and stirring uniformly, and performing filter pressing to obtain a mud cake. The water content of the mud cake was controlled to 23.5%, drying shrinkage was measured, and plasticity R3 of the mud cake was measured by plasticity index method using KS-B type microcomputer plasticity measuring instrument.
Example 4
Dissolving 0.4% of cross-linked starch in the weight of the ceramic raw material in a small amount of water, adding the cross-linked starch into the ceramic raw material slurry with the mass concentration of 15%, uniformly mixing and stirring, and performing filter pressing to obtain a mud cake. The water content of the mud cake was controlled to 23.5%, drying shrinkage was measured, and plasticity R4 of the mud cake was measured by plasticity index method using KS-B type microcomputer plasticity measuring instrument.
The plasticity R and drying shrinkage data of the above examples are shown in Table 1:
TABLE 1 comparison table of plasticity R and drying shrinkage of each example
As can be seen from Table 1, after the compounds with different proportions are added into the ceramic raw materials, the plasticity of the ceramic raw materials is improved by more than 20%, and meanwhile, the drying shrinkage at 105 ℃, the firing shrinkage at 1280 ℃ and the total shrinkage are not greatly influenced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.
Claims (2)
1. A method for improving the plasticity of a ceramic raw material is characterized by comprising the following steps:
the method comprises the following steps: the following compounds were: adding any one of corn starch, cross-linked starch or sodium lignosulfonate into the ceramic raw material in a proportion of 0.2-0.8% of the weight of the ceramic raw material, mixing and stirring uniformly, and performing filter pressing to obtain a mud cake;
step two: and (3) controlling the water content of the mud cake in the step one to be 23.5%, measuring drying shrinkage, and measuring the plasticity of the mud cake by a plasticity index method through a microcomputer plasticity tester.
2. The method of claim 1, wherein the ceramic feedstock is formed by: step one, the adding mode of the compound added into the ceramic raw material is as follows: dissolving the compound in water or stirring the mixture evenly in the water, adding the mixture into ceramic raw material slurry with the mass concentration of 15-25%, and mixing and stirring the mixture evenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011321764.2A CN112577851A (en) | 2020-11-23 | 2020-11-23 | Method for improving plasticity of ceramic raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011321764.2A CN112577851A (en) | 2020-11-23 | 2020-11-23 | Method for improving plasticity of ceramic raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112577851A true CN112577851A (en) | 2021-03-30 |
Family
ID=75123121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011321764.2A Pending CN112577851A (en) | 2020-11-23 | 2020-11-23 | Method for improving plasticity of ceramic raw material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112577851A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD253485A1 (en) * | 1986-10-23 | 1988-01-20 | Halle Ziegelwerke | DEVICE FOR REGULATING THE PLASTICITY OF CERAMIC MASSES |
| SU1504574A1 (en) * | 1985-11-25 | 1989-08-30 | Новосибирский инженерно-строительный институт им.В.В.Куйбышева | Method of determining plasticity of clays and ceramic masses |
| CN101007739A (en) * | 2006-12-01 | 2007-08-01 | 华南理工大学 | Method for preparing porous ceramic using modified starch |
| CN101591177A (en) * | 2009-06-19 | 2009-12-02 | 厦门大学 | A kind of preparation method of magnesium silicate porous ceramic |
| CN101786888A (en) * | 2010-02-26 | 2010-07-28 | 长沙翰林化工科技有限公司 | Multifunctional ceramic composite additive |
| CN102584253A (en) * | 2012-02-15 | 2012-07-18 | 广东道氏技术股份有限公司 | Ceramic green body reinforcing agent and application thereof |
| CN104193312A (en) * | 2014-08-25 | 2014-12-10 | 曹南萍 | Colorful tourmaline ceramic and device applying same |
| CN104530318A (en) * | 2014-12-26 | 2015-04-22 | 中科院广州化学有限公司 | Acrylamide grafted corn starch ceramic reinforcing agent as well as preparation method and application thereof |
| CN105777082A (en) * | 2016-03-15 | 2016-07-20 | 武汉理工大学 | Method for preparing nanometer aluminum oxide ceramics through starch pregel in-situ consolidation forming |
| CN105829267A (en) * | 2013-10-15 | 2016-08-03 | 康宁股份有限公司 | Crosslinked starches for pore forming in ceramics |
| CN107894736A (en) * | 2017-10-23 | 2018-04-10 | 河源市东源鹰牌陶瓷有限公司 | A kind of detection method of the raw materials for production of architectural pottery |
| US20180327326A1 (en) * | 2015-11-30 | 2018-11-15 | Corning Incorporated | Methods of making porous ceramic articles |
-
2020
- 2020-11-23 CN CN202011321764.2A patent/CN112577851A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1504574A1 (en) * | 1985-11-25 | 1989-08-30 | Новосибирский инженерно-строительный институт им.В.В.Куйбышева | Method of determining plasticity of clays and ceramic masses |
| DD253485A1 (en) * | 1986-10-23 | 1988-01-20 | Halle Ziegelwerke | DEVICE FOR REGULATING THE PLASTICITY OF CERAMIC MASSES |
| CN101007739A (en) * | 2006-12-01 | 2007-08-01 | 华南理工大学 | Method for preparing porous ceramic using modified starch |
| CN101591177A (en) * | 2009-06-19 | 2009-12-02 | 厦门大学 | A kind of preparation method of magnesium silicate porous ceramic |
| CN101786888A (en) * | 2010-02-26 | 2010-07-28 | 长沙翰林化工科技有限公司 | Multifunctional ceramic composite additive |
| CN102584253A (en) * | 2012-02-15 | 2012-07-18 | 广东道氏技术股份有限公司 | Ceramic green body reinforcing agent and application thereof |
| CN105829267A (en) * | 2013-10-15 | 2016-08-03 | 康宁股份有限公司 | Crosslinked starches for pore forming in ceramics |
| CN104193312A (en) * | 2014-08-25 | 2014-12-10 | 曹南萍 | Colorful tourmaline ceramic and device applying same |
| CN104530318A (en) * | 2014-12-26 | 2015-04-22 | 中科院广州化学有限公司 | Acrylamide grafted corn starch ceramic reinforcing agent as well as preparation method and application thereof |
| US20180327326A1 (en) * | 2015-11-30 | 2018-11-15 | Corning Incorporated | Methods of making porous ceramic articles |
| CN105777082A (en) * | 2016-03-15 | 2016-07-20 | 武汉理工大学 | Method for preparing nanometer aluminum oxide ceramics through starch pregel in-situ consolidation forming |
| CN107894736A (en) * | 2017-10-23 | 2018-04-10 | 河源市东源鹰牌陶瓷有限公司 | A kind of detection method of the raw materials for production of architectural pottery |
Non-Patent Citations (1)
| Title |
|---|
| 廖智 等: "陶瓷泥料可塑性测试***", 《佛山陶瓷》, 31 December 2004 (2004-12-31), pages 25 - 26 * |
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