Nano packing filling and method for making same

A kind of packing and nano technology, which is applied in the manufacture of nano packing and the field of nano packing, can solve the problems of reducing the service life of packing and valve, wear of packing and valve stem, and damage of sealing surface, so as to reduce friction coefficient, improving sealing performance, and preventing corrosion

Inactive Publication Date: 2007-10-10
张志伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the corrosion of the valve stem is easy to damage the sealing surface and cause leakage, and at the same time generate a large friction force, it is easy to wear the packing and the valve stem, thereby reducing the service life of the packing and the valve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: Preparation of special nano anti-wear corrosion inhibitor: take by weighing 1.5 kilograms of silicon carbide (SiC) and silicon nitride (SiC) with a particle diameter less than 20 nanometers. 3 N 4 ) 0.25 kg, filter 10 kg of commercially available No. 32 food-grade lubricating oil through a 400-mesh filter, heat the lubricating oil to 30°C, add the weighed silicon carbide and silicon nitride into the lubricating oil, and stir thoroughly Finally, put it in a constant temperature box and place it at a temperature of 30°C for 2 hours to make a special nano anti-wear corrosion inhibitor.

[0020] Production of nano-packing packing: first put the aramid fiber wire into the prepared special nano anti-wear corrosion inhibitor and immerse it for 12 hours, remove the aramid fiber wire and drench the anti-wear corrosion inhibitor, put the aramid fiber wire into In an incubator, it was placed at a temperature of 30° C. for 6 hours. Then weave the packing according t...

Embodiment 2

[0022] Embodiment 2: Preparation of special nano anti-wear corrosion inhibitor: take by weighing 1.2 kilograms of silicon carbide with a particle size less than 30 nanometers, filter No. 320 common open gear oil through a 400-mesh filter screen, and get 10 kilograms of filtered gear oil Put it into a stainless steel bucket, add the weighed silicon carbide into the gear oil, stir it well, put it in a constant temperature box, and place it at a temperature of 45°C for 2.5 hours to make a special nano anti-wear corrosion inhibitor.

[0023] Production of nano-packing packing: first put the aramid fiber wire into the special nano anti-wear corrosion inhibitor and immerse it for 12 hours, remove the aramid fiber wire and drench the anti-wear corrosion inhibitor, put the aramid fiber wire into the constant temperature box , placed at a temperature of 50°C for 5 hours. Weave the aramid fiber wire impregnated with the special nano anti-wear corrosion inhibitor into packing according t...

Embodiment 3

[0024] Embodiment 3: Preparation of special nano anti-wear corrosion inhibitor: take 3.6 kilograms of silicon nitride with a particle diameter of 30 to 50 nanometers, filter No. 220 industrial closed gear oil through a 400-mesh filter screen, and get 10 kilograms of filtered Put the gear oil into a stainless steel bucket, heat the gear oil to 35°C, add the weighed silicon nitride into the gear oil, stir it fully, put it in a constant temperature box, and place it at a temperature of 40°C for 2 hours , which is made into a special nano anti-wear corrosion inhibitor.

[0025] Production of nano-packing packing: Weave aramid fiber wire into packing according to specifications and processing technology, put the shaped packing into special nano-anti-wear corrosion inhibitor and immerse it for 10 hours, remove the packing and drench it for anti-wear Corrosion inhibitor, finally place the packing at a temperature of 75°C for 4.5 hours for drying to make nano packing.

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Abstract

The invention provides a nano packing filling material comprising packing base material and additive, the additive contains special type nano antiwearing inhibitor whose content is 8-46 wt% of the total packing filling material. The invention also discloses the process of preparation.

Description

technical field [0001] The invention belongs to sealing, and in particular relates to a sealing material for a fluid medium, specifically a nano-packing packing, and also relates to a manufacturing method of the nano-packing. Background technique [0002] In the field of sealing, sealing is usually divided into static sealing and dynamic sealing. Packing packing seals are widely used in static and dynamic sealing. When packing packing is used correctly, the sealing principle of packing packing will not be changed basically. At this time, the sealing performance of packing packing mainly depends on the sealing performance of packing packing. The material composition of the root packing requires that the packing should not only have the good compression rate, rebound rate and stress relaxation rate of the static sealing material, but also have the excellent toughness, tensile strength, recovery and other properties of the dynamic sealing material. Resistance, wear resistance,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/10
Inventor 张志伟
Owner 张志伟
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