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High-performance ceramic material for water seal of water pump

A ceramic material, high-performance technology, applied in the field of ceramic materials to achieve the effect of good conductivity, small linear expansion coefficient and high mechanical strength

Inactive Publication Date: 2014-10-01
安徽安尔达机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing silicon nitride ceramic materials are increasingly unable to meet the needs of high-speed development. How to prepare a ceramic material with high mechanical strength, excellent wear resistance and heat resistance has become a technical problem that needs to be solved at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A high-performance ceramic material for water pump water seal, its raw materials include by weight: 50 parts of silicon nitride, 18 parts of talc powder, 28 parts of wollastonite, 5 parts of alumina, 2 parts of yttrium trioxide, 3 parts of zirconium dioxide 2 parts, 2 parts of titanium dioxide, 1.5 parts of thermoplastic phenolic resin, 2 parts of absolute ethanol; in the preparation process, silicon nitride, talcum powder, wollastonite, alumina and absolute ethanol were mixed evenly, and then added yttrium trioxide, After fully grinding zirconium dioxide and titanium dioxide, they are sent to a spray tower for spray granulation, and the obtained materials are sent to a high-temperature furnace for calcination at 1200°C for 8 hours, and then placed in a vibrating mill to pulverize to obtain material A. To material A, thermoplastic The phenolic resin is stirred evenly, and then pressed by isostatic pressing equipment with a pressure of 1.5 tons per square centimeter, and ...

Embodiment 2

[0013] A high-performance ceramic material for water pump water seal, its raw materials include by weight: 60 parts of silicon nitride, 15 parts of talc powder, 34 parts of wollastonite, 2 parts of alumina, 4 parts of yttrium trioxide, 1 part of zirconium dioxide 1 part, 3 parts of titanium dioxide, 1 part of thermoplastic phenolic resin, 3 parts of absolute ethanol; in the preparation process, silicon nitride, talcum powder, wollastonite, alumina and absolute ethanol were mixed evenly, and then added yttrium trioxide, After fully grinding zirconium dioxide and titanium dioxide, they are sent to a spray tower for spray granulation, and the obtained materials are sent to a high-temperature furnace for calcination at 900°C for 10 hours, and then placed in a vibrating mill to pulverize to obtain material A. Add thermoplastic The phenolic resin is stirred evenly, and then pressed by isostatic pressing equipment with a pressure of 1 ton per square centimeter, and the vacuum is kept ...

Embodiment 3

[0015] A high-performance ceramic material for water pump water seal, its raw materials include by weight: 58 parts of silicon nitride, 16 parts of talc powder, 32 parts of wollastonite, 4 parts of alumina, 3 parts of yttrium trioxide, 2 parts of zirconium dioxide Parts, 2.3 parts of titanium dioxide, 1.2 parts of thermoplastic phenolic resin, 2.6 parts of absolute ethanol; in the preparation process, silicon nitride, talcum powder, wollastonite, alumina and absolute ethanol were mixed evenly, and then added yttrium trioxide, After fully grinding zirconium dioxide and titanium dioxide, they are sent to a spray tower for spray granulation, and the obtained materials are sent to a high-temperature furnace for calcination at 1100°C for 9.5 hours, and then placed in a vibrating mill to pulverize to obtain material A, and to material A, add The thermoplastic phenolic resin is stirred evenly, and then pressed by isostatic pressing equipment with a pressure of 1.3 tons per square cent...

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PUM

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Abstract

The invention discloses a high-performance ceramic material for a water seal of a water pump, which comprises the following raw materials in parts by weight: 50-60 parts of silicon nitride, 15-18 parts of talc powder, 28-34 parts of wollastonite, 2-5 parts of aluminum oxide, 2-4 parts of yttrium nitrate, 1-3 parts of zirconium dioxide, 2-3 parts of titanium dioxide, 1-1.5 parts of thermoplastic phenolic resin and 2-3 parts of absolute ethyl alcohol. The ceramic material disclosed by the invention has high mechanical strength, excellent wear resistance and excellent heat resistance; moreover, the preparation process is simple, and the cost is relatively low.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to a ceramic material for high-performance water pump water seal. Background technique [0002] Silicon nitride ceramics are an important structural material. It is a superhard substance, an inorganic material that does not shrink during sintering, has lubricity itself, and is wear-resistant; except for hydrofluoric acid, it does not react with other inorganic acids, has strong corrosion resistance, and resists oxidation at high temperatures. Moreover, it can also resist cold and heat shocks, and it will not shatter when heated to above 1000°C in the air, cooled rapidly and heated again sharply. It is precisely because silicon nitride ceramics have such excellent characteristics that people often use it to manufacture ceramic materials for water pump water seals of small gasoline engine generators. With the use of silicon nitride ceramic materials is also expanding. The...

Claims

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Application Information

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IPC IPC(8): C04B35/584C04B35/622
Inventor 吴甲亭
Owner 安徽安尔达机电有限公司
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