A method for manufacturing moldless bare-fired foamed ceramics

A technology of foamed ceramics and a manufacturing method, which is applied to ceramic products, manufacturing tools, ceramic molding machines, etc., can solve the problems of high energy consumption of foamed ceramics, improve production efficiency, overcome poor bonding ability of contact surfaces, and reduce production cost effect

Active Publication Date: 2022-04-29
山东晟世达科技有限公司
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  • Application Information

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Problems solved by technology

[0003] In the existing production of foamed ceramics, the mold frame composed of cordierite-mullite baffles is generally filled with foamed ceramic granulation powder, and the powder is separated from the baffle by refractory fiber paper, and the kiln furniture carries the powder. One piece enters the kiln for firing, and the kiln furniture used absorbs a lot of heat during the firing process, resulting in high energy consumption in the production of foamed ceramics

Method used

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  • A method for manufacturing moldless bare-fired foamed ceramics

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Embodiment Construction

[0024] In order to clearly illustrate the technical features of the present solution, the present application will be described in detail below through specific implementation modes.

[0025] This application illustrates the specific implementation of this application through the following examples of synthesis and characterization. The specific synthesis steps are as follows:

[0026] S1 Weighing material: Weigh the raw materials of foamed ceramics according to the parts by mass;

[0027] The raw materials are as shown in Table 1:

[0028] Table 1:

[0029]

[0030] S2 Ball milling of foamed ceramic raw materials: Wet ball milling is adopted, and the mud control process indicators are: fineness 2.0±0.2%, flow rate 39±15”, specific gravity 1.50±0.05, moisture 38±2%; mud passes through 20 meshes in sequence after passing , 80 mesh, 100 mesh three sieves, and aged and homogenized for not less than 48 hours;

[0031] S3 Spray drying: The foamed ceramic raw material slurry i...

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Abstract

A method for manufacturing moldless bare-fired foamed ceramics, comprising the following steps: firstly preparing thin sheets, then stacking at least two thin sheets to obtain a green body, and finally firing the obtained green body to obtain foamed ceramics. In the prior art, thicker foamed ceramics are generally obtained by bonding the finished foamed ceramics. The reason why this method is adopted is that during the firing process of thicker foamed ceramics, it will cause uneven heating. The heating effect is not good, so the foaming effect is poor. This application uses the method of pre-obtaining the molded body to realize the accumulation of thickness.

Description

technical field [0001] The present application relates to a method for manufacturing moldless bare-fired foamed ceramics. Background technique [0002] Foamed ceramics generally use solid waste such as polished porcelain slag, granite saw mud, iron ore tailings and lithium tailings as the main raw materials, introduce appropriate amount of inorganic substances, and adopt advanced production technology through high-temperature foaming and roasting. Due to the structural characteristics of closed pores, foamed ceramics have the functions of heat insulation, sound insulation and noise reduction, and waterproof and moisture-proof at room temperature. [0003] In the existing production of foamed ceramics, the mold frame composed of cordierite-mullite baffles is generally filled with foamed ceramic granulation powder, and the powder is separated from the baffle by refractory fiber paper, and the kiln furniture carries the powder. One piece enters the kiln for firing, and the kil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B35/14C04B35/16C04B35/622C04B35/66B28B1/00B28B3/00B28B11/24B28B17/02
CPCC04B38/02C04B35/14C04B35/16C04B35/622C04B35/66B28B17/026B28B3/00B28B1/002B28B11/243C04B2235/3249C04B2235/3206C04B2235/3445C04B2235/3284C04B2235/3826C04B2235/3217
Inventor 范士猛王凯郑树清管鹏飞王坤杜东岳
Owner 山东晟世达科技有限公司
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