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Water based anticorrosive penetrant inspection agent, and preparation method

A technology of penetrating flaw detection and anti-rust water, which is applied in the direction of optical testing for flaws/defects, which can solve the problems of low detection sensitivity, easy corrosion of workpieces, and no anti-rust function, so as to achieve the effect of no pollution to the environment and low cost

Active Publication Date: 2007-05-09
CHINA ERZHONG GRP DEYANG HEAVY IND
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The water colorant and water color developer introduced in the "Magnetic Particle and Penetrant Flaw Detection Technology" published by National Defense Industry Press have too low detection sensitivity, and because potassium hydroxide is used in the formula, there is no antirust reagent, so their own Does not have anti-rust function, the workpiece is prone to rust after use, and the drying time of the developer is too long, etc.

Method used

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Examples

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preparation example Construction

[0036] The preparation method of the coloring solution and the coloring solution of the present invention is to add each component to the distilled water at room temperature in sequence according to the order of the above components, and fully stir to make them all dissolve.

[0037] The penetrating agent added in the coloring liquid has good penetrating ability and suitable viscosity. The added carmine, rose red, and Congo red are brightly colored dyes. The mixing of several water-soluble dyes makes the color development more sensitive. The adsorbent of the color developing solution of the penetrant flaw detection agent of the present invention is composed of titanium dioxide, white carbon black and magnesium oxide, wherein the particle size of the magnesium oxide is the best to pass through 320 mesh. This kind of composite adsorbent has a good adsorption effect on the coloring liquid penetrating into the defect, and its excellent whiteness forms an ideal foil for the defect i...

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Abstract

A penetration coloring liquid and penetration color developing liquid both being used in crack detection is featured as preparing said coloring liquid from 5-30 of peretrating agent, 3-9 of dyestuff, 0.5-10 of fatty acid trolamide, 0.01-1 of benzene triazole and 0.1-2 of polyoxyethylene alky-phenolic ether; preparing said color developing liquid from 5-10 of binder, 3-7 of absorbent, 0.5-2 of fatty acid trolamide and 0.1-2 of polyoxyethylene alky-phenolic ether. The method for preparing said liquid is also disclosed.

Description

technical field [0001] The invention relates to the non-destructive penetrant flaw detection inspection of opening defects on the surface of metal and non-metal workpieces, in particular to the formula and preparation method of coloring liquid and color developing liquid for penetrant flaw detection. Background technique [0002] As a commonly used flaw detection method, after decades of development, its mechanism has been clearly understood by people, and the equipment and materials used have become more and more advanced with the development of related technologies; Quality control also plays an increasingly important role. It can check surface cracks, pores, delamination, inclusions, folding, leakage, poor fusion and other defects of the workpiece. Its inspection object has not only mainly inspected the opening defects of non-ferromagnetic metal and non-metal workpieces in the past, but has developed to be widely used in various metal and non-metal workpieces, and with t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/91
Inventor 白敏李代富李丹赵晓辉
Owner CHINA ERZHONG GRP DEYANG HEAVY IND
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