Ceramic for heat-resistant wear-resistant nozzles and preparation method of ceramic

A nozzle and ceramic technology, which is applied in the field of ceramics for heat-resistant and anti-wear nozzles and its preparation, can solve the problems of high brittleness, low wear resistance, poor acid and alkali resistance, etc., and achieves high hardness and surface smoothness. Effect

Inactive Publication Date: 2015-03-25
ANHUI WANJIE HYDRAULIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nozzles will be worn for a long time. At present, the materials used for nozzles include aluminum alloy materials, ceramics, etc. Aluminum alloy materials have poor wear resistance and need to be replaced frequently, resulting in high cost. Co

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A ceramic for heat-resistant and wear-resistant nozzles, made of the following raw materials in parts by weight (kg): Europium trioxide 4, Dysprosium trioxide 2.5, Kyanite 5, Cadmium carbonate 1.3, Sodium peroxide 1.5, Quartzite 23. Albite 24, nano-titanium boride 12, nano-tungsten carbide 6, sodium hydroxide 1.5, deionized water, 3.5 ethyl orthosilicate, ethanol, additive 5;

[0015] The auxiliary agent is made of the following raw materials in parts by weight (kg): kaolin 0.8, zircon 3.5, lanthanum oxide 0.2, diamond powder 0.2, Y2O3 0.3, La2O3 0.3, beryllium oxide 0.3, silane coupling agent kh-550 0.7 , polyethylene glycol 0.3, water 8; the preparation method is: pulverize zircon, pass through a 100-mesh sieve to obtain zircon powder; add polyethylene glycol into water, stir evenly, add zircon powder, stir for 25 minutes, Then add half weight of silane coupling agent kh-550, stir for 13 minutes, then add kaolin, stir and react for 25 minutes, then add the remaining w...

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PUM

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Abstract

The invention discloses a ceramic for heat-resistant we-resistant nozzles. The ceramic is prepared from the following raw materials in parts by weight: 3-5 parts of europium oxide, 2-3 parts of dysprosium oxide, 4-7 parts of kyanite, 1-1.5 part of cadmium carbonate, 1-2 parts of sodium peroxide, 20-25 parts of quartzite, 22-27 parts of albite, 10-14 parts of nano titanium boride, 5-8 parts of nano tungsten carbide, 1-2 parts of sodium hydroxide, appropriate amount of deionized water, 3-4 parts of ethyl orthosilicate, appropriate amount of ethyl alcohol and 4-6 parts of an assistant. By adding europium oxide, dysprosium oxide, nano titanium boride and nano tungsten carbide, the hardness, the wear resistance and the heat resistance are improved, and the service lives of the nozzles produced by the ceramic is 2-3 times longer than the aluminum alloy nozzles; and by using the assistant, the surface smoothness, the wear resistance and the heat resistance of the ceramic can be improved.

Description

technical field [0001] The invention relates to the field of ceramic materials, in particular to a ceramic for heat-resistant and wear-resistant nozzles and a preparation method thereof. Background technique [0002] Nozzles will be worn for a long time. At present, the materials used for nozzles include aluminum alloy materials, ceramics, etc. Aluminum alloy materials have poor wear resistance and need to be replaced frequently, resulting in high cost. Cold and heat stimulation, poor acid and alkali resistance, so it is necessary to research ceramic materials with excellent wear resistance, high hardness, good toughness, vibration resistance, heat resistance, corrosion resistance, etc., in order to reduce costs. Contents of the invention [0003] The object of the present invention is to provide a heat-resistant and wear-resistant nozzle ceramic and its preparation method. The ceramic has high hardness, good wear resistance and heat resistance. [0004] Technical scheme ...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B35/16C04B35/63C04B35/622
Inventor 夏建国
Owner ANHUI WANJIE HYDRAULIC TECH
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