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

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 ...

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. 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., to reduce costs