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A kind of vacuum impregnation nano-sealing agent with high permeability and its preparation method and use

A technology of vacuum impregnation and high permeability, which is applied in metal material coating process, fusion spraying, coating, etc., which can solve the problems of poor permeability, low temperature resistance, low wear resistance, etc., and achieve low viscosity and good resistance High temperature characteristics, good permeability effect

Active Publication Date: 2018-08-28
HUIZHOU HUAYU TECH INNOVATE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a vacuum impregnated nano-sealing agent with high permeability, high wear resistance, high temperature resistance and low viscosity, which solves the problem of traditional hole sealing. Solve the problems of poor agent penetration, low wear resistance, high temperature resistance, and high viscosity, so as to completely seal the internal holes of precision components

Method used

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  • A kind of vacuum impregnation nano-sealing agent with high permeability and its preparation method and use
  • A kind of vacuum impregnation nano-sealing agent with high permeability and its preparation method and use
  • A kind of vacuum impregnation nano-sealing agent with high permeability and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The vacuum-impregnated nano-sealing agent with high permeability described in this example is made of the following mass ratio raw materials:

[0039] Silicon carbide: silicon dioxide: auxiliary agent: isopropanol = 1%: 5%: 0.1%: 65%, wherein the mass ratio of the auxiliary agent is polyurethane: tetrafluoropropanol = 1:1.

[0040] The preparation process of the vacuum impregnation nano-sealing agent described in this embodiment includes the following steps:

[0041] (1) According to the mass ratio, it is silicon carbide: silicon dioxide: polyurethane: tetrafluoropropanol: isopropanol=1%: 5%: 0.05%: 0.05%: 65% and weigh the quality of each substance;

[0042] (2) Adjust the speed of the disperser to 300r / m, first slowly add silicon carbide and silicon dioxide, and then add an appropriate amount of isopropanol, so as not to make the slurry too viscous and inconvenient to use, add tetrafluoropropanol, Finally, depending on the viscosity of the overall slurry, add polyure...

Embodiment 2

[0045] The vacuum-impregnated nano-sealing agent with high permeability described in this example is made of the following mass ratio raw materials:

[0046] Silicon carbide: silicon dioxide: auxiliary agent: isopropanol = 3.45%: 11.25%: 0.3%: 85%, wherein the mass ratio of the auxiliary agent is polyurethane: dipropylene glycol butyl ether = 1:1.

[0047] The preparation process of the vacuum impregnation nano-sealing agent described in this embodiment includes the following steps:

[0048] (1) According to the mass proportion, it is silicon carbide: silicon dioxide: polyurethane: dipropylene glycol butyl ether: isopropanol=3.45%: 11.25%: 0.15%: 0.15%: 85%, respectively weigh the quality of each substance;

[0049] (2) Adjust the speed of the disperser to 400r / m, first slowly add silicon carbide and silicon dioxide, and then add an appropriate amount of isopropanol, so as not to make the slurry too viscous and inconvenient to use, add dipropylene glycol butyl ether, Finally,...

Embodiment 3

[0053] The vacuum-impregnated nano-sealing agent with high permeability described in this example is made of the following mass ratio raw materials:

[0054] Silicon carbide: silicon dioxide: auxiliary agent: tetrafluoropropanol = 5%: 15%: 3%: 95%, wherein the mass ratio of the auxiliary agent is polyurethane: dipropylene glycol methyl ether = 1:1.

[0055] The preparation process of the vacuum impregnation nano-sealing agent described in this embodiment includes the following steps:

[0056] (1) According to the mass ratio, it is silicon carbide: silicon dioxide: polyurethane: dipropylene glycol methyl ether: tetrafluoropropanol=5%: 15%: 1.5%: 1.5%: 95%, and weigh the quality of each substance;

[0057] (2) Adjust the speed of the disperser to 500r / m, first slowly add silicon carbide and silicon dioxide, and then add an appropriate amount of tetrafluoropropanol, so as not to make the slurry too viscous and inconvenient to use, add dipropylene glycol methyl ether , and finall...

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Abstract

The invention discloses a vacuum impregnation nano hole sealing agent with high permeability as well as a preparation method and application thereof. The vacuum impregnation nano hole sealing agent is composed of the following raw materials: silicon carbide, silicon dioxide, an auxiliary and a solvent, wherein the mass ratio of the silicon carbide to the silicon dioxide to the auxiliary to the solvent is (1%-5%):(5%-15%):(0.1%-3%):(65%-95%). The invention further discloses a preparation method for the vacuum impregnation nano hole sealing agent, and application of the vacuum impregnation nano hole sealing agent to precision workpieces of iron series, aluminum series, copper series and alloy series. The vacuum impregnation nano hole sealing agent with high permeability, provided by the invention, can form chemical crosslinking with iron, aluminum, zinc, magnesium and other metals to generate strong chemical bonding, and has the follows advantages: (1), compared with a common hole sealing agent, the vacuum impregnation nano hole sealing agent disclosed by the invention has better permeability and the particle size is smaller than 50nm; (2), compared with a common hole sealing agent, the vacuum impregnation nano hole sealing agent disclosed by the invention has better high temperature resistance; (3), compared with a common hole sealing agent, the vacuum impregnation nano hole sealing agent disclosed by the invention further has the advantages of low viscosity and high abrasion resistance.

Description

technical field [0001] The invention relates to the technical field of vacuum impregnation nano-sealing agent, in particular to a vacuum-impregnation nano-sealing agent with high permeability, its preparation method and application. Background technique [0002] Pore ​​sealing is a necessary post-treatment process for many thermal spray coatings. When the coating is exposed to corrosion and oxidation (sometimes at high temperature) environment, sealing is a necessary consideration in coating design. [0003] The world's first series of sealing agent products to the market is the American METCO company (now SULZER METCO). Its sealing agent series has a considerable scale and has been successfully used for many years. The important sealing agents are: air drying Type glyceride resin, air-drying type phenolic resin, aluminum vinyl resin, baked type phenolic resin and silicon-alumina resin, etc. Among them, although the first four have good chemical stability, their working tem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/18
Inventor 檀四华向汝明其他发明人请求不公开姓名
Owner HUIZHOU HUAYU TECH INNOVATE
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