Preparation method of mud for sanitary porcelain large-piece products

A technology for sanitary ceramics and mud, applied in the field of ceramic products, can solve the problems of low plasticity and large bending deformation, and achieve the effects of long service life, small hygroscopic expansion and guaranteeing stability.

Inactive Publication Date: 2013-05-22
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome technical deficiencies such as low plasticity and large bending deformation of ordinary mud, and provide a new mud preparation method with good grouting process performance and capable of producing high-quality sanitary porcelain large-scale products, so as to reduce cracking of large-scale products , edge deformation, overall deformation and other defects, improve the pass rate of large sanitary porcelain products

Method used

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  • Preparation method of mud for sanitary porcelain large-piece products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The raw materials and the weight percentages of the raw materials used in the mud are: Xinkemei wash ball clay 12.8%, Lulong feldspar 17.8%, rich sandstone 6.2%, porcelain powder 4.0%, wollastonite 2.0%, kaolinite 5.4%, Zhangzhou Wash soil 5.0%, Zuoyun wash soil 7.2%, Zhangcun soil 10.0%, Feitianyan washed mud 4.3%, Xinyao washed mud 9.5%, GF-EB washed mud 6.6%, GF-36 washed mud 9.2%.

[0019] The physical and firing properties of the mud in this example are as follows: the suction speed is 6.0mm / hr, the drying shrinkage is 3.4%, the firing shrinkage is 9.1%, the total shrinkage is 12.2%, the bending deformation is 13.26%, the water absorption is 0.20%, and it is dry. Strength 370N / cm 2 , Cracking time 120min, firing strength 6141N / cm 2 .

Embodiment 2

[0021] The raw materials used in the mud and the weight percentages of raw materials are: Xinkemei wash ball clay 8%, Lulong feldspar 17.8%, rich sandstone 6.2%, porcelain powder 4.0%, wollastonite 2.0%, kaolinite 8.2%, Zhangzhou Wash soil 5.0%, Zuoyun wash soil 7.2%, Zhangcun soil 12.0%, Feitianyan washed mud 4.3%, Xinyao washed mud 9.5%, GF-EB washed mud 6.6%, GF-36 washed mud 9.2%.

[0022] The physical and firing properties of the mud in this example are as follows: the suction speed is 7.0mm / hr, the drying shrinkage is 3.15%, the firing shrinkage is 9.19%, the total shrinkage is 12.05%, the bending deformation is 15.78%, the water absorption is 0.28%, and the drying Strength 310N / cm 2 , Cracking time 78min, firing strength 5840N / cm 2 .

Embodiment 3

[0024] The raw materials and the weight percentages of the raw materials used in the mud are: Xinkemei wash ball clay 12.8%, Lulong feldspar 12.8%, rich sandstone 8.2%, porcelain powder 4.0%, wollastonite 2.0%, kaolinite 5.4%, Zhangzhou Washing soil 3.0%, Zuoyun washing soil 7.2%, Zhangcun soil 15.0%, Feitianyan washing mud 2.0%, Xinyao washing mud 11.8%, GF-EB washing mud 6.6%, GF-36 washing mud 9.2%.

[0025] The physical and firing properties of the mud in this example are as follows: the suction speed is 7.2mm / hr, the drying shrinkage is 3.57%, the firing shrinkage is 9.01%, the total shrinkage is 12.56%, the bending deformation is 14.67%, the water absorption is 0.50%, and the drying Strength 340N / cm 2 , Cracking time 100min, firing strength 4810N / cm 2 .

[0026] Table 1 The raw material formulas of the 3 examples (% by weight)

[0027] raw material name

Example 1

Example 2

Example 3

Xinkemei Ball

12.8

8

12.8

Lulong feldspar

17.8

17.8

12.8

Rich sandstone

6.2

6.2 ...

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Abstract

The invention relates to a preparation method of mud for sanitary porcelain large-piece products, belonging to the technical field of ceramic products. Raw materials used for the mud for the sanitary porcelain large-piece products comprise new comet washing ball clay, Zhangzhou washing soil, Zuoyun washing soil, flying swallow water washing mud, Xinyao water washing mud, GF-EB water washing mud, GF-36 water washing mud, Lulong feldspar, Fengrun sandstone, porcelain powder, aedelforsite, kaolin, Zhang village soil and the like. The preparation of the mud comprises the following steps: firstly preparing hard material mud and then performing mixing, stirring and pulping. The preparation of the hard material mud comprises the following steps: firstly grinding the Lulong feldspar, the Fengrun sandstone, the porcelain powder, the aedelforsite, the kaolin, the Zhang village soil and other raw material and an appropriate amount of water to the stipulated fineness, putting into a mud pool, and further stirring and mixing with other raw materials to get the mud for the sanitary porcelain large-piece products. The mud prepared by the preparation method disclosed by the invention can effectively improve the quality problems of easiness in cracking, serious integral deformation and the like of products during the firing process of the ordinary mud for preparing the large-piece sanitary ceramic products, and further has the advantages of low cost, high billet forming rate and the like.

Description

Technical field: [0001] The invention belongs to the technical field of ceramic products, and specifically relates to a method for preparing slurry for large sanitary porcelain products. Background technique: [0002] In the production of sanitary ceramics, ordinary mud is used to form and fire products. In the case of some large products and products that require high product size and regularity, it is difficult to meet the standard requirements. The larger the size of ceramic products, the more difficult it is to fire. Because ordinary sanitary porcelain mud has low plasticity and large shrinkage deformation, it is easy to cause product cracking, product surface deformation, edge deformation, overall distortion and other quality defects when firing large products. This has become the main reason affecting the product qualification rate. one. [0003] The preparation method of ordinary mud is usually: the fine particle soft material and the coarse particle hard material are mixed...

Claims

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Application Information

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IPC IPC(8): C04B33/00C04B33/13
Inventor 赵英娜张文丽姚宗银王淑梅曾雄丰
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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