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CN114621603A - Penetrant for penetrant inspection - Google Patents

Penetrant for penetrant inspection Download PDF

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Publication number
CN114621603A
CN114621603A CN202210270878.1A CN202210270878A CN114621603A CN 114621603 A CN114621603 A CN 114621603A CN 202210270878 A CN202210270878 A CN 202210270878A CN 114621603 A CN114621603 A CN 114621603A
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CN
China
Prior art keywords
penetrant
neutralizer
surfactant
alcohol
coloring dye
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210270878.1A
Other languages
Chinese (zh)
Inventor
王福贵
李梁
李东江
秦承鹏
陈征
王志强
赵仑
邱张维佳
王鹏
王亮
王凌帆
姜洪辉
张磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Thermal Power Research Institute Co Ltd
Original Assignee
Xian Thermal Power Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Thermal Power Research Institute Co Ltd filed Critical Xian Thermal Power Research Institute Co Ltd
Priority to CN202210270878.1A priority Critical patent/CN114621603A/en
Publication of CN114621603A publication Critical patent/CN114621603A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0079—Azoic dyestuff preparations
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0072—Preparations with anionic dyes or reactive dyes
    • C09B67/0073—Preparations of acid or reactive dyes in liquid form
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The invention discloses a penetrant for penetrant inspection, which comprises a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid or citric acid; the surfactant is lauryl oleyl alcohol, palmityl alcohol, stearyl alcohol, cyclohexanol or terpene alcohol; the solvent is one or a mixture of more of water, triethanolamine, isopropanol, amyl alcohol, ethylene glycol ethyl ether, oleic acid and dibasic acid ester, and the penetrating agent has the characteristic of being capable of self-biodegradation.

Description

Penetrant for penetrant inspection
Technical Field
The invention belongs to the field of metal nondestructive testing, and relates to a penetrant for penetrant inspection.
Background
Penetrant inspection includes fluorescence and coloration. The fluorescence method is that penetrating fluid containing fluorescent substance is coated on the surface of the detected piece, penetrates into the surface defect through capillary action, and then the penetrating fluid on the surface is cleaned to retain the penetrating fluid in the defect.
The typical imaging method is to spread a uniform white powder on the surface of the inspected object, and to suck the penetrating fluid from the defect and spread the penetrating fluid to the surface. At this time, the surface was irradiated with an ultraviolet lamp in a dark place, and the defect portion emitted bright fluorescence. The coloring method is similar to the fluorescence method, except that the penetrating fluid does not contain fluorescent substances, but contains coloring dye, so that the penetrating fluid is bright and visible and can be checked under white light or sunlight. In general, the sensitivity of the fluorescence method is higher than that of the coloring method, however, the existing penetrant can not carry out self-biodegradation, and specific sewage treatment is required subsequently.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an penetrant for penetrant inspection, which has the characteristic of self-biodegradation.
In order to achieve the purpose, the penetrant for penetrant inspection of the invention comprises a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid or citric acid; the surfactant is lauryl oleyl alcohol, palmityl alcohol, stearyl alcohol, cyclohexanol or terpene alcohol; the solvent is one or a mixture of more of water, triethanolamine, isopropanol, amyl alcohol, ethylene glycol ethyl ether, oleic acid and dibasic acid ester.
The concentrations of the coloring dye, the stable neutralizer and the surfactant are respectively 1.5-3.0 g/1000ml, 8.0-12.0 g/1000ml and 1.0-1.5 g/1000 ml.
The coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is lauryl oleyl alcohol, wherein the concentration of edible lemon yellow is 1.5g/1000ml, the concentration of tartaric acid is 8.0g/1000ml, and the concentration of lauryl oleyl alcohol is 1.0g/1000 ml.
The coloring dye is edible lemon yellow, the stable neutralizer is citric acid, the surfactant is palm alcohol, the concentration of the edible lemon yellow is 2.0g/1000ml, the concentration of the citric acid is 8.0g/1000ml, and the concentration of the palm alcohol is 1.0g/1000 ml.
The coloring dye is edible lemon yellow, the stabilizing neutralizer is tartaric acid, the surfactant is stearyl alcohol, the concentration of the edible lemon yellow is 2.5g/1000ml, the concentration of the tartaric acid is 8.0g/1000ml, and the concentration of the stearyl alcohol is 1.0g/1000 ml.
The invention has the following beneficial effects:
during the specific operation of the penetrant for penetrant inspection, the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid or citric acid; the surfactant is lauryl oleyl alcohol, palmityl alcohol, stearyl alcohol, cyclohexanol or terpene alcohol; the solvent is one or a mixture of more of water, triethanolamine, isopropanol, amyl alcohol, ethylene glycol ethyl ether, oleic acid and dibasic acid ester, all substances can be subjected to self-biodegradation, later-stage cleaning is facilitated, and degraded products can be directly discharged.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following embodiments of the present invention will be clearly and completely described in the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and are not intended to limit the scope of the disclosure of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The penetrant for penetrant inspection described in this embodiment includes edible lemon yellow, water, tartaric acid, and lauryl oleyl alcohol;
the edible lemon yellow has a concentration of 1.5g/1000ml, the tartaric acid has a concentration of 8.0g/1000ml, and the lauryl oleyl alcohol has a concentration of 1.0g/1000 ml; tartaric acid is used as a stable neutralizer, so that the stability of the whole solution is maintained, and new chemical substances are not generated; when the external use environment has alkaline conditions which can interfere with the penetrant, the C4H6O6[ H + ] + [ OH- ] → C4H6O6+ H2O resists the interference of the external alkaline conditions and can play a role in neutralization;
lauryl oleyl alcohol exists in a molecular state in a solution, has high stability, is not easily influenced by the existence of strong electrolyte, acid and alkali, can be mixed with other surfactants for use, has good compatibility, has good solubility in various solvents, and does not generate strong adsorption on the surface of a solid; lauryl alcohol oleyl alcohol also serves to promote dissolution of the edible lemon yellow in the solvent.
Example two
The penetrant for penetrant inspection described in this embodiment includes edible lemon yellow, water, tartaric acid and palmityl alcohol;
the edible lemon yellow has a concentration of 2.0g/1000ml, the citric acid has a concentration of 8.0g/1000ml, and the palmitol has a concentration of 1.0g/1000 ml. Citric acid is used as a stable neutralizer, the stability of the whole solution is maintained, and new chemical substances are not generated; when alkaline conditions which can interfere with the penetrant exist in the external use environment, the C6H8O7[ H + ] + [ OH- ] → C6H8O7+ H2O resists the interference of the external alkaline conditions and can play a role in neutralization. The palmityl alcohol exists in molecular state in the solution, so that it has high stability, is not easily affected by strong electrolyte, acid and alkali, can be mixed with other surfactants for use, has good compatibility, has good solubility in various solvents, and does not strongly adsorb on the solid surface. The palm alcohol has another function of promoting the dissolution of the edible lemon yellow in the solvent.
EXAMPLE III
The penetrant for penetrant inspection described in this embodiment includes edible lemon yellow, water, tartaric acid and stearyl alcohol;
the edible lemon yellow has a concentration of 2.5g/1000ml, the tartaric acid has a concentration of 8.0g/1000ml, and the stearyl alcohol has a concentration of 1.0g/1000 ml. Stearyl alcohol exists in molecular state in solution, has high stability, is not easily influenced by strong electrolyte, acid and alkali, can be mixed with other surfactants for use, has good compatibility, has good solubility in various solvents, and does not strongly adsorb on solid surface. Stearyl alcohol also serves to promote dissolution of the edible lemon yellow in the solvent.
The edible lemon yellow has the concentration of 1.5-3.0 g/1000ml, and the concentration of the stable neutralizer is 8.0-12.0 g/1000ml, so that the biodegradation capacity of the edible lemon yellow reaches the expected effect, and the optimal effect of degradation can be reached within 7-14 hours by more than 88%. In addition, compared with non-water-based penetrating fluid, the water consumption and the wastewater treatment capacity are greatly reduced, the cost is saved, and the natural environment is effectively protected.
Example four
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is lauryl oleyl alcohol; the solvent is water.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 1.5g/1000ml, 8.0g/1000ml and 1.0g/1000ml, respectively.
EXAMPLE five
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is citric acid; the surfactant adopts palmityl alcohol; the solvent is triethanolamine.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 3.0g/1000ml, 12.0g/1000ml and 1.5g/1000ml, respectively.
EXAMPLE six
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant adopts stearyl alcohol; the solvent is isopropanol.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 2.0g/1000ml, 9.0g/1000ml and 1.1g/1000ml, respectively.
EXAMPLE seven
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is citric acid; the surfactant adopts cyclohexanol; the solvent is pentanol.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 2.1g/1000ml, 9.5g/1000ml and 1.2g/1000ml, respectively.
Example eight
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is terpene alcohol; the solvent is amyl alcohol.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 2.4g/1000ml, 10g/1000ml and 13g/1000ml, respectively.
Example nine
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is terpene alcohol; the solvent is ethylene glycol ethyl ether.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 2.6g/1000ml, 10.5g/1000ml and 1.4g/1000ml, respectively.
Example ten
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is lauryl oleyl alcohol; the solvent is oleic acid.
The concentrations of the coloring dye, the stabilizer neutralizer and the surfactant were 2.8g/1000ml, 11g/1000ml and 1.5g/1000ml, respectively.
EXAMPLE eleven
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant adopts stearyl alcohol; the solvent is dibasic acid ester.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 1.6g/1000ml, 11.5g/1000ml and 1.1g/1000ml, respectively.
Example twelve
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stabilizing neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is citric acid; the surfactant adopts stearyl alcohol; the solvent is a mixture of oleic acid and dibasic acid ester.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 1.8g/1000ml, 8.5g/1000ml and 1.05g/1000ml, respectively.
Thirteen examples
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is citric acid; the surfactant adopts cyclohexanol; the solvent is a mixture of ethylene glycol ethyl ether, oleic acid and dibasic acid ester.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 1.8g/1000ml, 11.5g/1000ml and 1.4g/1000ml, respectively.
Example fourteen
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is citric acid; the surfactant is terpene alcohol; the solvent is a mixture of amyl alcohol, ethylene glycol ethyl ether, oleic acid and dibasic acid ester.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 2.2g/1000ml, 8g/1000ml and 1.0g/1000ml, respectively.
Example fifteen
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is lauryl oleyl alcohol; the solvent is a mixture of water, triethanolamine, isopropanol, amyl alcohol, ethylene glycol ethyl ether, oleic acid and dibasic acid ester.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 2.5g/1000ml, 10g/1000ml and 1.2g/1000ml, respectively.
Example sixteen
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is lauryl oleyl alcohol; the solvent is a mixture of triethanolamine, isopropanol, pentanol, ethylene glycol ethyl ether, oleic acid and dibasic acid ester.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 2.8g/1000ml, 12.0g/1000ml and 1.0g/1000ml, respectively.
Example seventeen
The penetrant for penetrant inspection of the embodiment includes a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is lauryl oleyl alcohol; the solvent is a mixture of water, triethanolamine, isopropanol, amyl alcohol, ethylene glycol ethyl ether, oleic acid and dibasic acid ester.
The concentrations of the coloring dye, the stabilizing neutralizer and the surfactant were 1.5g/1000ml, 12.0g/1000ml and 1.0g/1000ml, respectively.
The preparation process of the penetrant for penetrant inspection comprises the following steps:
preparing 1000 liters of water with the pH value of 7-9 at the normal temperature of 10-38 ℃ and the relative humidity of less than 85%; adding a surfactant into water, and stirring for 30 minutes at a stirring speed of 200 revolutions per minute; slowly adding the coloring dye into water, stirring by using a stirrer in the adding process, accelerating the process of dissolving the pigment into the water, and stirring for 30 minutes at the stirring speed of 200 revolutions per minute; after the coloring dye is dissolved, adding a stable neutralizer, prolonging the service life and the storage life of the product, and stirring for 10 minutes at the stirring speed of 100 revolutions per minute; and preparing a finished penetrant product for penetrant inspection.
The using method of the invention comprises the following steps: 1) cleaning the detected surface and the range of 30mm nearby to remove slag, oxide skin, rust, oil stain and the like on the surface, and cleaning the surface by using a cleaning agent to fully dry the surface of the test piece; 2) coating a layer of very thin penetrant for flaw detection on the surface of a workpiece in a brushing mode; 3) waiting for 10 minutes or more, and staying for a period of time after coating to ensure that the penetrant fully permeates on the detected object, so that the materials can be saved, and the detection effect can be improved;
4) rapidly washing away the penetrant of the penetration inspection on the surface of the part by using water at room temperature, and avoiding washing by using high-pressure high-temperature water; the penetrant in the surface cracks is prevented from being washed away; long-time cleaning and brushing is avoided; 5) immediately drying after washing; no water is accumulated on the surface of the part, and before the part is placed into a baking oven, the water on the surface of the part is blown off by using pressurized air as much as possible; 6) applying a layer of very thin developer on the surface of a workpiece to enable penetrating fluid penetrating into artificial defects of the workpiece to reversely permeate out, and visually displaying the positions, sizes and shapes of the defects in different contrast forms; 7) and observing the defect display condition of the workpiece surface through the detection equipment under the illumination environment with the visible light irradiation intensity not lower than 1000 lux.

Claims (8)

1. The penetrant for penetrant inspection is characterized by comprising a coloring dye, a solvent, a stable neutralizer and a surfactant, wherein the coloring dye is edible lemon yellow; the stable neutralizer is tartaric acid or citric acid; the surfactant is lauryl oleyl alcohol, palmityl alcohol, stearyl alcohol, cyclohexanol or terpene alcohol; the solvent is one or a mixture of more of water, triethanolamine, isopropanol, amyl alcohol, ethylene glycol ethyl ether, oleic acid and dibasic acid ester.
2. The penetrant for penetrant inspection according to claim 1, wherein the concentrations of the coloring dye, the stabilizer neutralizer and the surfactant are 1.5-3.0 g/1000ml, 8.0-12.0 g/1000ml and 1.0-1.5 g/1000ml, respectively.
3. The penetrant for penetrant inspection of claim 2, wherein the color dye is edible lemon yellow; the stable neutralizer is tartaric acid; the surfactant is lauryl oleyl alcohol.
4. The penetrant of claim 3, wherein the edible lemon yellow is 1.5g/1000ml, the tartaric acid is 8.0g/1000ml, and the lauryl oleyl alcohol is 1.0g/1000 ml.
5. The penetrant of claim 2, wherein the color dye is edible lemon yellow, the stabilizing neutralizer is citric acid, and the surfactant is palmityl alcohol.
6. The penetrant of claim 5, wherein the edible lemon yellow is 2.0g/1000ml, the citric acid is 8.0g/1000ml, and the palmitol is 1.0g/1000 ml.
7. The penetrant of claim 2, wherein the color dye is edible lemon yellow, the stabilizing neutralizer is tartaric acid, and the surfactant is stearyl alcohol.
8. The penetrant of claim 7, wherein the edible lemon yellow is 2.5g/1000ml, the tartaric acid is 8.0g/1000ml, and the stearyl alcohol is 1.0g/1000 ml.
CN202210270878.1A 2022-03-18 2022-03-18 Penetrant for penetrant inspection Pending CN114621603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210270878.1A CN114621603A (en) 2022-03-18 2022-03-18 Penetrant for penetrant inspection

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Application Number Priority Date Filing Date Title
CN202210270878.1A CN114621603A (en) 2022-03-18 2022-03-18 Penetrant for penetrant inspection

Publications (1)

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CN114621603A true CN114621603A (en) 2022-06-14

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008275335A (en) * 2007-04-25 2008-11-13 Marktec Corp Water-washable water-based penetrant for liquid penetrant test, and liquid penetrant testing method using penetrant
CN102721705A (en) * 2012-06-28 2012-10-10 吴江市宏达探伤器材有限公司 Dye check agent for nuke industry and flaw detection method using dye check agent
CN109307677A (en) * 2017-07-27 2019-02-05 东莞华晶粉末冶金有限公司 Water base bleeding agent and preparation method thereof, aqueous-based ceramic flaw detection agent and preparation method thereof
CN113155858A (en) * 2021-06-07 2021-07-23 中车戚墅堰机车车辆工艺研究所有限公司 Water-based biodegradable penetrant, preparation method and application thereof
CN113218958A (en) * 2021-05-25 2021-08-06 上海全凯新材料科技有限公司 Water-washing type dye check penetrant using water as developer, and preparation method and use method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008275335A (en) * 2007-04-25 2008-11-13 Marktec Corp Water-washable water-based penetrant for liquid penetrant test, and liquid penetrant testing method using penetrant
CN102721705A (en) * 2012-06-28 2012-10-10 吴江市宏达探伤器材有限公司 Dye check agent for nuke industry and flaw detection method using dye check agent
CN109307677A (en) * 2017-07-27 2019-02-05 东莞华晶粉末冶金有限公司 Water base bleeding agent and preparation method thereof, aqueous-based ceramic flaw detection agent and preparation method thereof
CN113218958A (en) * 2021-05-25 2021-08-06 上海全凯新材料科技有限公司 Water-washing type dye check penetrant using water as developer, and preparation method and use method thereof
CN113155858A (en) * 2021-06-07 2021-07-23 中车戚墅堰机车车辆工艺研究所有限公司 Water-based biodegradable penetrant, preparation method and application thereof

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Application publication date: 20220614