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Wear-resistant nano ceramic sealing ring

A technology of nano-ceramics and sealing rings, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems that the sealing performance needs to be improved and the application is limited, and achieves the convenience of industrial production, good mechanical properties, and normal pressure bending resistance The effect of increasing strength

Inactive Publication Date: 2015-04-01
QINGDAO R & D INST XIAN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ceramic sealing ring is the focus of current research. Some people put alumina 50-70wt%; zirconia 10-20wt%; ethylene glycol 3-7wt%; polyethylene 5-9wt%; silica sol, aluminum sol or soft clay One or more kinds of 2-5wt% made of refractory cement sealing ring, but its use is limited, and the sealing performance needs to be improved; and the introduction of nano-ceramics into the field of ceramics is a research hotspot now, due to the excellent physical and chemical properties of nano-materials Performance, will greatly improve the mechanical, electrical and mechanical properties of nano-ceramics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A wear-resistant nano-ceramic sealing ring, the sealing ring is divided into two parts, the inner part is a nano-ceramic part, the outer part is a rubber part, and the nano-ceramic part is arranged in the rubber through a heat vulcanization process.

[0043] The parts by weight of the nano ceramic part consist of:

[0044] Nanoscale white corundum 70 parts

[0045] Nano silicon dioxide 30 parts

[0046] Nano silicon carbide 20 parts

[0047] Fused magnesia 15 parts

[0048] Nano boron carbide 10 parts

[0049] Nano zinc oxide 10 parts

[0050] Nano titanium oxide 10 parts

[0051] Carbon black 10 parts

[0052] Yttrium stabilized zirconia 20 parts

[0053] Andalusite 10 parts

[0054] Tempered fiber 5 parts

[0055] 3 parts of PVA

[0056] 3 parts of aluminate cement;

[0057] The parts by weight of the rubber part consist of:

[0058] Neoprene 70 parts

[0059] Silicone rubber 40 parts

[0060] Bromobutyl rubber 50 parts

[0061] N660 carbon black 40 par...

Embodiment 2

[0069] A wear-resistant nano-ceramic sealing ring, the sealing ring is divided into two parts, the inner part is a nano-ceramic part, the outer part is a rubber part, and the nano-ceramic part is arranged in the rubber through a heat vulcanization process.

[0070] The parts by weight of the nano ceramic part consist of:

[0071] Nanoscale white corundum 50 parts

[0072] Nano silicon dioxide 10 parts

[0073] Nano silicon carbide 10 parts

[0074] Fused magnesia 10 parts

[0075] Nano boron carbide 5 parts

[0076] Nano Zinc Oxide 5 parts

[0077] Nano titanium oxide 5 parts

[0078] Carbon black 5 parts

[0079] Yttrium stabilized zirconia 10 parts

[0080] Andalusite 6 parts

[0081] 1 part tempered fiber

[0082] 1 piece of PVA

[0083] 1 part of aluminate cement;

[0084] The parts by weight of the rubber part consist of:

[0085] Neoprene 50 parts

[0086] Silicone rubber 30 parts

[0087] Bromobutyl rubber 30 parts

[0088] N660 carbon black 20 parts

[...

Embodiment 3

[0096] A wear-resistant nano-ceramic sealing ring, the sealing ring is divided into two parts, the inner part is a nano-ceramic part, the outer part is a rubber part, and the nano-ceramic part is arranged in the rubber through a heat vulcanization process.

[0097] The parts by weight of the nano ceramic part consist of:

[0098] Nanoscale white corundum 60 parts

[0099] Nano silicon dioxide 30 parts

[0100] Nano silicon carbide 20 parts

[0101] Fused magnesia 15 parts

[0102] Nano boron carbide 10 parts

[0103] Nano zinc oxide 10 parts

[0104] Nano titanium oxide 10 parts

[0105] Carbon black 10 parts

[0106] Yttrium stabilized zirconia 20 parts

[0107] Andalusite 10 parts

[0108] Tempered fiber 5 parts

[0109] 3 parts of PVA

[0110] 3 parts of aluminate cement;

[0111] The parts by weight of the rubber part consist of:

[0112] Neoprene 70 parts

[0113] Silicone rubber 40 parts

[0114] Bromobutyl rubber 50 parts

[0115] N660 carbon black 40 par...

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Abstract

The invention discloses a wear-resistant nano ceramic sealing ring, by means of taking nanoscale raw material white corundum, silicon dioxide, silicon carbide, boron carbide, zinc oxide, titanium oxide and the like as green body materials, and taking chloroprene rubber, silicone rubber, brominated butyl rubber, N660 carbon black, glass fiber, activating agent and PEG20000 as rubber components, the sealing ring is obtained through heat vulcanization process, the preparation process is simple and easy to industrialize, and the sealing ring prepared has excellent physical and chemical properties.

Description

technical field [0001] The invention belongs to the field of sealing rings, in particular to a wear-resistant nano-ceramic sealing ring. Background technique [0002] With the development of science and technology in our country, various processes have higher and higher demands for mechanical seals and motion seals. In metallurgy, machinery, chemical industry, medicine, food, corrosion-resistant pumps, automobiles and pneumatic components, etc. High precision, good mechanical strength, good high temperature wear resistance, good chemical corrosion resistance, and high performance sealing rings such as impervious to water when the temperature changes suddenly. [0003] Ceramic sealing ring is the focus of current research. Some people put alumina 50-70wt%; zirconia 10-20wt%; ethylene glycol 3-7wt%; polyethylene 5-9wt%; silica sol, aluminum sol or soft clay One or more kinds of 2-5wt% made of refractory cement sealing ring, but its use is limited, and the sealing performance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/00C04B35/10C08L11/00C08L83/04C08L23/28C08K7/14C08K3/04
CPCC04B35/10C08L11/00C08L2205/035F16J15/00C08L83/04C08L23/283C08L71/02C08K7/14C08K3/04
Inventor 苏国东
Owner QINGDAO R & D INST XIAN JIAOTONG UNIV
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