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High-abrasion-resistance anti-scouring ceramic seal ring and preparation method thereof

A ceramic sealing ring, anti-scour technology, used in mechanical equipment, metal processing equipment, liquid fuel engines, etc., can solve the problems affecting durability and service life, low impact resistance, easy to crack, etc., to improve the compactness. , improved crack resistance, good anti-scour effect

Inactive Publication Date: 2016-10-26
HEFEI ZHENGHAO MECHANICAL TECH
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

200511160458.7 discloses a high-purity alumina sealing ring, which has the advantages of high density and wear resistance, and can adapt to corrosion in harsh environments. However, the alumina cermet material is brittle, which makes the toughness of the alumina ceramic sealing ring relatively high. Poor, low impact resistance, prone to cracking, affecting its durability and service life

Method used

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Embodiment Construction

[0015] A high wear-resistant and anti-scouring ceramic sealing ring is prepared from the following component raw materials in weight (kg):

[0016] Aluminum oxide 80, copper oxide 3, nickel iron powder FeNi80 5, silicon boride 3, nano titanium dioxide P25 0.5, nano silicon dioxide 0.1, hydroxyethyl cellulose 0.3, sodium silicate 0.3, titanate coupling agent TMC- 201 0.15, sodium hydroxide 6, polysorbate-800.05, alcohol-soluble phenolic resin 0.1.

[0017] A method for preparing a high wear-resistant and anti-scouring ceramic sealing ring, comprising the following steps:

[0018] (1) First add sodium hydroxide into water to form a 10mol / L solution, then mix it with nano-titanium dioxide P25 and ultrasonically disperse it evenly, then add it to the reactor together, react the reactor under the condition of 150°C for 10 hours, and adjust the pH after cooling To neutrality, add nano-silica, hydroxyethyl cellulose and polysorbate-80 and stir to disperse evenly to obtain a modified...

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Abstract

The invention discloses a high-abrasion-resistance anti-scouring ceramic seal ring. The ceramic seal ring is prepared from the following raw materials of, by weight, 80-90 parts of aluminum oxide, 3-5 parts of copper oxide, 5-10 parts of nickel iron powder FeNi80, 3-5 parts of silicon boride, 0.5-1 part of nanometer titanium dioxide P25, 0.1-0.2 part of nanosilica, 0.3-0.5 part of hydroxyethyl cellulose, 0.3-0.5 of sodium silicate, 0.15-0.25 part of titanate coupling agent TMC-201, 6-8 parts of sodium hydroxide, 0.05-0.1 part of polysorbate-80 and 0.1-0.2 part of alcohol-soluble phenolic resin. The ceramic seal ring is good in corrosion resistance, long in service life, and good in anti-scouring performance and has good stability and durability and high abrasion resistance, and the impact resistance and crack resistance are improved.

Description

technical field [0001] The invention relates to the technical field of cermet sealing ring materials, in particular to a high wear-resistant and anti-scouring ceramic sealing ring and a preparation method thereof. Background technique [0002] Submersible pump is an important equipment for deep well water extraction. It extracts groundwater to the surface. It is widely used in farmland irrigation, domestic water, mining industry, seawater lifting, ship loading, fountain landscape, hot spring bathing and other fields in China. In the actual use process, due to the corrosion and friction of the conveying medium, there is often the problem of serious wear of the sealing ring. The function of the sealing ring is to prevent abrasion between the pump impeller and the pump casing, improve the water flow state at the pump inlet, improve the efficiency of the pump, and enhance the operation reliability of the pump. Once the sealing ring is severely worn, it will cause the gap betwee...

Claims

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Application Information

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IPC IPC(8): C22C29/12C22C1/05B22F5/10B22F1/00F04D29/16
CPCF04D29/165C22C1/051C22C29/12B22F5/106F05D2300/17B22F2998/10B22F1/145B22F1/10B22F3/02B22F3/1007
Inventor 郑之松
Owner HEFEI ZHENGHAO MECHANICAL TECH
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