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Production process of high-temperature-resistant ceramic

A technology of high temperature resistant ceramics and production process, which is applied in the field of production process of high temperature resistant ceramics to achieve the effect of high thermal shock resistance

Pending Publication Date: 2022-04-29
陈天龙 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ceramics are widely used, such as crucibles for smelting nickel-based alloys. One of the main uses of the nickel-based alloys is aircraft engine blades. Since the temperature for smelting nickel-based alloys needs to reach 1500-1650 °C, the current crucibles are very It is difficult to withstand this temperature, so it is difficult to melt nickel-based alloys. Therefore, we have proposed a production process of high-temperature-resistant ceramics to solve this problem

Method used

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Effect test

Embodiment Construction

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them.

[0018] A production process of high temperature resistant ceramics, comprising the following process steps:

[0019] 1) Prepare raw materials: silicon dioxide (SiO2) 29~35 (wt%), aluminum oxide (Al2O3) 64~71 (wt%), titanium dioxide (TiO2)≤0.17~0.22 (wt%), sodium oxide ( Na2O)≤0.12~0.23(wt%), ferric oxide (Fe2O3)≤0.02~0.12(wt%), magnesium oxide (MgO)≤0.01~0.14(wt%), potassium oxide (K2O)≤0.02~0.08 (wt%);

[0020] 2) Milling: through milling equipment, the powder of the raw material in step 1) has better particle shape and bulk density;

[0021] 3) Pulping: through pulping equipment, the raw materials after pulverization in step 2) have good fluidity, viscosity and other forming properties;

[0022] 4) Pouring forming: pouring the slurry ...

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Abstract

The invention discloses a production process of high-temperature-resistant ceramic. The production process is characterized by comprising the following steps: 1) preparing raw materials; (2) preparing powder; 3) pulping; (4) casting and forming; 5) drying; 6) sintering; and (7) machining. The high-temperature-resistant ceramic is prepared from specific raw materials according to the proportion of the raw materials, and the produced ceramic has the main characteristics of high thermal shock resistance, high-temperature-resistant strength and high purity, does not pollute a nickel-based alloy, and can be manufactured into a crucible for smelting the nickel-based alloy.

Description

technical field [0001] The invention relates to the technical field of ceramic production, in particular to a production process of high-temperature-resistant ceramics. Background technique [0002] Ceramics is the collective name of pottery and porcelain, and it is also a kind of arts and crafts in our country. As far back as the Neolithic Age, our country has rough and simple painted pottery and black pottery. Pottery and porcelain have different textures and properties. Pottery is made of clay with high viscosity and strong plasticity as the main raw material. It is opaque, has fine pores and weak water absorption, and the sound of hitting is muddy. Porcelain is made of clay, feldspar and quartz, translucent, non-absorbent, anti-corrosion, hard and compact, and crisp when knocked. my country's traditional ceramic arts and crafts are famous all over the world for their high quality, beautiful shape and high artistic value. [0003] Ceramics are widely used, such as cruc...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/10C04B35/622C04B35/64
CPCC04B35/66C04B35/10C04B35/622C04B35/64C04B2235/3418C04B2235/3232C04B2235/3201C04B2235/3272C04B2235/3206C04B2235/96C04B2235/9607C04B2235/77
Inventor 陈天龙陈圣贤
Owner 陈天龙