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Wear-resistant drilling pump valve sealing gasket and its preparation method

A drilling pump and valve sealing technology, which is applied in the field of gaskets and their preparation, can solve problems such as the failure of pumps and valves to work normally, and achieve the effects of excellent aging resistance, improved comprehensive performance, and excellent wear resistance

Inactive Publication Date: 2014-01-15
TONGLING SIDE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The comprehensive performance of the sealing material plays a vital role in the normal operation of the pump valve. Failure phenomena such as expansion, cracking and friction loss of the sealing material will cause the pump valve to fail to work normally.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A wear-resistant drilling pump valve gasket, made of the following raw materials (kg): polyisoprene rubber (SKI-3) 55, styrene-butadiene rubber (SBR1712) 20, polytetrafluoroethylene 12, modified Non-toxic nano-diamond 15, nano-silicon nitride 6, white ointment 5, zinc dibutyldithiocarbamate 2, high wear-resistant carbon black N330 18, insoluble sulfur powder M-80 3, zinc oxide 2, manganese dioxide 1.5. Stearic acid 2, 2-(2,4-dinitrophenylthio)benzothiazole 2, N-cyclohexylthiophthalimide 1.

[0014] The preparation method of described modified nano-diamond is as follows:

[0015] a. Weigh a certain amount of nano-diamond, add 4% nano-tantalum carbide, 3% nano-zirconia, 2% nano-magnesium nitride, 6% nano-attapulgite, 3% nano-barite and mix evenly , calcined at 440°C for 2h, cooled to room temperature, then added 1.5% tetraisopropyl bis(dioctylphosphite acyloxy) titanate, 3% isooctyl palmitate, 5% polyisobutylene , 2% sodium dodecyl sulfonate and 6% propylene glyco...

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Abstract

The invention discloses a wear-resistant drilling pump valve sealing gasket and a preparation method thereof. The sealing gasket consists of the following raw materials by weight: 50-60 parts of isoprene rubber (SKI-3), 15-25 parts of styrene butadiene rubber (SBR1712), 10-15 parts of PTFE, 10-15 parts of modified nano diamond, 5-10 parts of nano silicon nitride, 4-7 parts of white factice, 2-3 parts of zinc dibutyl dithiocarbamate, 16-22 parts of high abrasion furnace black N330, 3-4 parts of insoluble sulfur powder M-80, 2-3 parts of zinc oxide, 1-2 parts of manganese dioxide, 1-2 parts of stearic acid, 2-3 parts of 2-(2, 4-dinitrophenyl thio) benzothiazole, and 1-2 parts of N-cyclohexylthiophthalimide. Compared to a traditional sealing gasket, the sealing gasket provided by the present invention has the advantages of low friction wear, good resilience and high compressive strength, and can prolong the service life of the product in the use process in the same conditions.

Description

technical field [0001] The invention relates to a gasket and a preparation method thereof, in particular to a wear-resistant drilling pump valve gasket and a preparation method thereof. Background technique [0002] The comprehensive performance of the sealing material plays a vital role in the normal operation of the pump valve. Failure phenomena such as expansion, cracking and friction loss of the sealing material will cause the pump valve to fail to work normally. Drilling pump valves work in mud containing solid particles, wet abrasive wear and erosion wear are the main wear forms that lead to failure of pump valve sealing materials. Therefore be badly in need of developing a kind of wear-resistant drilling pump valve sealing gasket. Contents of the invention [0003] The object of the present invention is to provide a wear-resistant drilling pump valve sealing gasket and a preparation method thereof, which can improve the wear resistance of the sealing gasket and pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L9/06C08L27/18C08K13/06C08K9/04C08K9/02C08K3/04C08K3/34C08K5/39C08K3/06C08K3/22C08K5/09C08K5/47C08K5/378B29C35/02
Inventor 孔华英
Owner TONGLING SIDE TECH
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