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Fluorescent oil-base magnetic suspension for magnetic particle inspection, and preparation method thereof

A technology of magnetic particle flaw detection and fluorescent oil, which is applied in the direction of material magnetic variable, etc., can solve problems such as unavailable, difficult to control the concentration and suspension of the proportion, troublesome testing personnel, etc., and achieve long suspension time, good suspension, and dispersion good sex effect

Active Publication Date: 2012-10-17
WUJIANG HYPERD NDT MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Fluorescent magnetic particle flaw detection used in the past requires inspectors to use many kinds of additives on site, and then carry out weighing and proportioning, which is very troublesome for inspectors, and the concentration of the proportioning and suspension are difficult to control, often not recognized by foreign supervisory inspectors

Method used

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  • Fluorescent oil-base magnetic suspension for magnetic particle inspection, and preparation method thereof
  • Fluorescent oil-base magnetic suspension for magnetic particle inspection, and preparation method thereof
  • Fluorescent oil-base magnetic suspension for magnetic particle inspection, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A typical formulation of the present invention is as follows:

[0024]

[0025] Its preparation method is as follows:

[0026] (1) At room temperature, mix and stir the co-solvent evenly and place it for 10 hours for use, and mix and stir the solvent and surfactant for 1 hour before use;

[0027] (2) Add the co-solvent mixture into the solvent mixture, and then stir for 0.5 hours;

[0028] (3) Then add the magnetic powder mixture into the liquid and stir for 1.5 hours, then filter with 200-mesh gauze to remove the residue.

[0029] The concentration of the magnetic suspension after filtering out the residue is 0.1% to 0.25%; the corrosion test of the suspension is carried out with samples of aluminum-magnesium alloy, steel, and stainless steel, and there should be no rust within 24 hours; the prepared suspension liquid, put it into the aerosol tank with the aerosol filling production line, the pressure in the tank is 2.5-4.5Kg / cm 2 。

Embodiment 2

[0031] Another typical formula of the present invention is as follows:

[0032]

[0033] Its preparation method is with embodiment one

Embodiment 3

[0035] The present invention also has a typical formula as follows:

[0036]

[0037] Its preparation method is with embodiment one

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Abstract

The present invention discloses a fluorescent oil-base magnetic suspension for magnetic particle inspection. The fluorescent oil-base magnetic suspension is characterized by comprising solvents and co-solvents, wherein the solvents are a solvent oil C7 and a machine oil 10, the co-solvents are an emulsifier TX-4, an anti-foaming agent and oily fluorescent magnetic particles, and the fluorescent oil-base magnetic suspension comprises, by weight, 55-70 parts of the solvent oil C7, 20-40 parts of the machine oil 10, 3-6 parts of the emulsifier TX-4, 1.8-4 parts of the anti-foaming agent, and 0.15-0.25 parts of the oily fluorescent magnetic particles. The fluorescent oil-base magnetic suspension for magnetic particle inspection in the present invention provides good suspension property in a carrier fluid, such that the workpiece after the inspection does not present corrosion phenomenon. In addition, the fluorescent oil-base magnetic suspension of the present invention has characteristics of good fluidity, good dispersion, long suspension time, and high magnetic particle indication sensitivity.

Description

[0001] technical field [0002] The invention relates to a fluorescent oil-based magnetic suspension liquid for magnetic particle flaw detection and a preparation method thereof. [0003] Background technique [0004] The fluorescent magnetic particle flaw detection used in the past required inspectors to use many kinds of additives on site, and then weighed and proportioned, which was very troublesome for the inspectors, and the concentration and suspension of the proportion were difficult to control, and often failed to obtain foreign supervisory inspections. staff approval. [0005] Contents of the invention [0006] The purpose of the present invention is to provide a safe, convenient and low-pollution fluorescent oil-based magnetic suspension for magnetic particle flaw detection. [0007] In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme: a fluorescent oil-based magnetic suspension for magnetic par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/84
Inventor 沈明奎徐阿江姚卫东
Owner WUJIANG HYPERD NDT MATERIAL
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