CN101942165B - Nuclear grade ultrasonic inspection couplant and preparation method thereof - Google Patents
Nuclear grade ultrasonic inspection couplant and preparation method thereof Download PDFInfo
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- CN101942165B CN101942165B CN2010102375070A CN201010237507A CN101942165B CN 101942165 B CN101942165 B CN 101942165B CN 2010102375070 A CN2010102375070 A CN 2010102375070A CN 201010237507 A CN201010237507 A CN 201010237507A CN 101942165 B CN101942165 B CN 101942165B
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Abstract
The invention relates to nuclear grade ultrasonic inspection couplant, which is characterized by comprising the following components in parts by weight: 50-90 parts of deionized water, 0.3-5 parts of gel matrix, 0.3-8 parts of pH value modifier, 5-30 parts of moisturizing agent, 1-10 parts of anti-rusting agent and 0.1-11 parts of antibacterial preservative. The invention also provides a preparation method of the nuclear grade ultrasonic inspection couplant. The nuclear grade ultrasonic inspection couplant has low content of fluorine, chlorine and sulfur and has the advantages of having no toxicity or harm, pure and transparent appearance, no bubble, adjustable viscosity, good anti-rust capability, stable storage, good sound transparent performance and the like, and is easy to clear.
Description
Technical field
The present invention relates to a kind of nuclear level UT couplant and preparation method thereof, be used for coupling ultrasonic ripple probe and workpiece, detect workpiece, defect, belong to nondestructive testing UT technical field.
Background technology
Ultrasound examination is a kind of in five kinds of conventional lossless detection methods (infiltration detections, magnetic detection, ray detection, ultrasound examination, eddy current inspection), whether has defective in order to the detection workpiece.The same with other lossless detection methods, ultrasound examination also is to be prerequisite not destroy checked object, various engineering materialss, component and product is effectively checked, so as to integrity, continuity and the safe reliability of estimating them.Ultrasound examination is the product manufacturing and uses assurance quality product and important means safe in utilization in the maintenance.
UW relies on medium to propagate, and on different media, reflects, reflect, and the two media acoustic impedance difference is big more, and reflection is just many more, and ultrasonic test is just based on this principle, thereby detects the defective that exists in the workpiece.The acoustic impedance difference of air and workpiece is very big, and a large amount of UW are reflected on the interface of air and workpiece formation, has weakened getting into the UW in the workpiece.For guaranteeing that ultrasonic energy as often as possible gets in the checking matter, just need between ultrasound probe and workpiece, be filled with the couplant that is beneficial to ultrasonic propagation.
Consider from industrial ultrasound examination, require fluid couplant to possess following function: on the surface attached to workpiece, enough wellabilities are arranged easily to get rid of between probe and the workpiece because the air gap that surface irregularity causes; Its specific acoustic resistance as far as possible has less differing with the specific acoustic resistance of workpiece material, is beneficial to acoustic energy entering workpiece as much as possible; Also to workpiece there be corrosive nature from practical standpoint, removing easily, convenient sources, cheap (nondestructive testing handbook/Li Jiawei, Chen Jimao chief editor, Beijing: China Machine Press, 2002.1).
Be the couplant basic function more than, according to different needs couplant also had higher requirement in the actually operating.Requirement on the viscosity: the detected object of the ultrasound examination in the ultrasound examination in the industry and the medical treatment is different; To be directed against various object in the industry; Have planar, facade, face upward, therefore require the couplant certain viscosity will be arranged, be beneficial to and be attached to workpiece and sagging not; Requirement on the antirust function: the couplant that needs that has has certain antirust function; In addition, the UW couplant that uses on the nuclear industry need be controlled fluorine, chlorine, sulphur content.
Stipulated three kinds of harmful elements in the nuclear engineering file, they are fluorine, chlorine, sulphur, all must make strict control to their free state and the content of chemical combination attitude.The content that for example clearly is given for the fluorine chlorination in the couplant of nuclear industry Equipment Inspection among ASME " the international standard of boiler and pressure vessel standard V the rolls up nondestructive testing " T-433.2 must not be higher than 250ppm, and sulphur content must not be higher than 250ppm.Nuclear industry equipment uses nickel-base alloy, titanium alloy and austenitic steel in a large number, and the important meals parts are in high temperature, high pressure, the high-throughput radiating severe environment for a long time.According to discovering, element sulphur at high temperature can produce thermal etching (also crying hot-short) to the workpiece of nickel-base alloy, and haloid element such as fluorine, chlorine are easy to and titanium alloy and austenitic steel material effects, under the situation that stress exists, produce stress corrosion.
The UW couplant that is used to now detect a flaw mainly contains: water, and glycerine, machine oil, Vaseline, CMC 99.5 etc., they can both satisfy basic flaw detection requirement, but all have certain deficiency.With water is couplant: workpiece is got rusty, and water viscosity is too little, can't on workpiece, applies, can only ultrasound probe and workpiece all be immersed in the water and operate; With glycerine is couplant: the viscosity of glycerine is along with variation of temperature is bigger; 20 ℃ to 50 ℃ viscosity change scopes are 1412mPaS to 142mPaS, and temperature can also apply on facade when low reluctantly, when temperature is higher; Face upward with facade on apply and will trickle, do not reach the coupled effect; With machine oil is couplant: the coating with facade of can not being used to face upward, and follow-up cleaning is cumbersome, and machine oil is MO, does not also meet present environmental protection requirement; With Vaseline is couplant: can be coated on facade and face upward, but follow-up cleaning work trouble; With the CMC 99.5 is couplant: though viscosity can be regulated according to different needs, the trickle bubble that is difficult to eliminate is arranged, the existence of bubble will be had a greatly reduced quality coupling effect.
Fluorine in the existing common UW couplant, chlorine, sulphur content are not gone control especially, the requirement that does not therefore yet just reach nuclear industry.
The UT couplant that Equipment Inspection is used as nuclear industry is except the strict control of fluorine, chlorine, sulphur content, and performance that also should its each side of balance makes its product that becomes superior performance, is specifically related to following aspects:
1. outward appearance: colorless and odorless, pure transparent, no bubble, gel gel shape uniform fluid.
2. environmental requirement: nontoxic, do not contain the chemical ingredients of forbidding in the prescription.
3. viscosity: have suitable viscosity, the flaw detection on can be used for facade and facing upward, not sagging.
4. easy-clear: water-soluble fully, can convert deionized water as required and regulate viscosity, be easy to water and remove.
5. rust-preventing characteristic: have certain rust-preventing characteristic.
6. stable: stable viscosity, not easy to change, be difficult for going mouldy.
7. corrodibility: to the workpiece non-corrosiveness.
8. entrant sound property: specific acoustic resistance should be as far as possible has less differing with the specific acoustic resistance of workpiece material, is beneficial to acoustic energy entering workpiece as much as possible.
9. the control of sulphur and halogen: can apply to the nuclear industry equipment testing, sulphur content will be lower than 250ppm, and halogen content is lower than 250ppm.
Summary of the invention
It is low to the purpose of this invention is to provide a kind of fluorine, chlorine, sulphur content, has nontoxic, the pure transparent no bubble of outward appearance simultaneously, a nuclear level UT couplant of advantage such as viscosity is adjustable, be easy to remove, rust-preventing characteristic is good, storage-stable, sound translative performance are good and preparation method thereof.
In order to achieve the above object; The invention provides a kind of nuclear level UT couplant; It is characterized in that, form by deionized water 50～90 weight parts, gel matrix 0.3～5 weight part, pH value adjustment agent 0.3～8 weight part, wetting Agent for Printing Inks 5～30 weight parts, rust-preventive agent 1～10 weight part and fungicidal preservative 0.1～11 weight part.
Described gel matrix is preferably carbomer.PH value adjustment agent is preferably one or more the mixture in sodium hydroxide, Pottasium Hydroxide, diethylolamine and the trolamine.Wetting Agent for Printing Inks is preferably one or more the mixture in terepthaloyl moietie, Ucar 35, the USP Kosher.Rust-preventive agent is preferably trolamine or morpholine.Fungicidal preservative is preferably ethanol, ethyl p-hydroxybenzoate or its mixture.
The present invention also provides the preparation method of above-mentioned nuclear level UT couplant, it is characterized in that concrete steps are:
The first step, at normal temperatures, gel matrix is wetting with deionized water, add remaining deionized water then; Be stirred to the carbomer complete swelling, cross 200 eye mesh screens, get stoste; Add pH value adjustment agent in proportion; Stirring obtains gel, adds rust-preventive agent, wetting Agent for Printing Inks and fungicidal preservative more successively in proportion, stirs;
Second goes on foot, the first step gained solution is taken a sample through the bomb method burn processing; Carry out the weight content that ion chromatography analysis draws fluorine, chlorine and sulphur after the gas that burning back is generated absorbs with alkaline absorption solution, it is specification product that the weight content that is lower than 100ppm, sulphur when the gross weight content of fluorine and chlorine is lower than 100ppm.
Beneficial effect of the present invention is following:
1, couplant provided by the invention is selected the raw material of not fluorine-containing in the molecular structure, chlorine, three kinds of elements of sulphur for use, and all raw materials make fluorine, chlorine, the sulphur content introduced with the impurity form all be no more than 100ppm through purifying simultaneously.The finished product fluorine adds cl content and is no more than 100ppm, and sulphur content is no more than 100ppm, couplant is dropped to minimum to the harm of workpiece, is particularly suitable for the nuclear industry Equipment Inspection.
2, couplant provided by the invention is the water-soluble polymer gel, is easy to apply and remove.
3, couplant stable viscosity provided by the invention, and viscosity can be regulated as required.
4, couplant provided by the invention has rust-preventing characteristic, and 24 to 48 hours rust-proof life is provided.
5, couplant provided by the invention is pure transparent, no bubble, and entrant sound property is good.
Embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment 1
Raw material: deionized water 50 weight parts, carbomer 0.3 weight part, pH value adjustment agent sodium hydroxide 0.3 weight part, wetting Agent for Printing Inks terepthaloyl moietie 30 weight parts, rust-preventive agent morpholine 3.3 weight parts, fungicidal preservative ethanol 10 weight parts, ethyl p-hydroxybenzoate 0.1 weight part.
Its preparation method and step are:
(1) select the above satisfactory raw material of CP or CP, weighing by mass percentage, for use.
(2) at normal temperatures, carbomer is wetting with small amount of deionized water, add balance of deionized water then, be stirred to the carbomer complete swelling.
(3) solution after the above-mentioned stirring is crossed 200 eye mesh screens, stoste, slowly add pH value and adjust agent, stir gel, add rust-preventive agent, wetting Agent for Printing Inks, fungicidal preservative more successively, stir, for use.
(4) gained solution is taken a sample through the bomb method burn processing; It is to carry out the weight content that ion chromatography analysis draws fluorine, chlorine and sulphur after 5% sodium carbonate solution absorbs that the gas that burning back is generated uses mass fraction, and it is specification product that the weight content that is lower than 100ppm, sulphur when the gross weight content of fluorine and chlorine is lower than 100ppm.
(5) the above-mentioned couplant through being up to the standards is filled into 500ml opaque plastics bottle or 10L opaque plastics bucket.
During use, this couplant evenly is coated to need carries out on the workplace of UT, when ultrasonic probe compresses, couplant promptly is full of the space between ultrasonic probe and the workpiece.
The total content of this couplant fluorine and chlorine is lower than 100ppm, and sulphur content is lower than 100ppm, and outward appearance is pure transparent, no bubble, and the test piece of 45# steel applies non-corroding after 48 hours.
Embodiment 2
Raw material: deionized water 80 weight parts, carbomer 5 weight parts, pH value adjustment agent diethylolamine 8 weight parts, wetting Agent for Printing Inks Ucar 35 10 weight parts, rust-preventive agent trolamine 10 weight parts, fungicidal preservative ethyl p-hydroxybenzoate 0.5 weight part.
Preparing method and method of use are with embodiment 1.
The total content of this couplant fluorine and chlorine is lower than 100ppm, and sulphur content is lower than 100ppm, and outward appearance is pure transparent, no bubble, and the test piece of 45# steel applies non-corroding after 48 hours.
Embodiment 3
Raw material: deionized water 90 weight parts, carbomer 0.8 weight part, pH value adjustment agent diethylolamine 2 weight parts, wetting Agent for Printing Inks USP Kosher 5 weight parts, rust-preventive agent trolamine 1 weight part, fungicidal preservative ethanol 0.1 weight part.
Preparing method and method of use are with embodiment 1.
The total content of this couplant fluorine and chlorine is lower than 100ppm, and sulphur content is lower than 100ppm, and outward appearance is pure transparent, no bubble, and the test piece of 45# steel applies non-corroding after 48 hours.
Claims (2)
1. examine level UT couplant for one kind; It is characterized in that, form by deionized water 50～90 weight parts, gel matrix 0.3～5 weight part, pH value adjustment agent 0.3～8 weight part, wetting Agent for Printing Inks 5～30 weight parts, rust-preventive agent 1～10 weight part and fungicidal preservative 0.1～11 weight part; Described gel matrix is a carbomer; Described pH value adjustment agent is one or more the mixture in sodium hydroxide, Pottasium Hydroxide, diethylolamine and the trolamine; Described wetting Agent for Printing Inks is one or more the mixture in terepthaloyl moietie, Ucar 35, the USP Kosher; Described rust-preventive agent is trolamine or morpholine, and described fungicidal preservative is ethanol, ethyl p-hydroxybenzoate or its mixture.
2. the preparation method of the described nuclear level UT of claim 1 couplant is characterized in that concrete steps are:
The first step, at normal temperatures, gel matrix is wetting with deionized water, add remaining deionized water then; Be stirred to the carbomer complete swelling, cross 200 eye mesh screens, get stoste; Add pH value adjustment agent in proportion; Stirring obtains gel, adds rust-preventive agent, wetting Agent for Printing Inks and fungicidal preservative more successively in proportion, stirs;
Second goes on foot, the first step gained solution is taken a sample through the bomb method burn processing; It is to carry out the weight content that ion chromatography analysis draws fluorine, chlorine and sulphur after 5% sodium carbonate solution absorbs that the gas that burning back is generated uses mass fraction, and it is specification product that the weight content that is lower than 100ppm, sulphur when the gross weight content of fluorine and chlorine is lower than 100ppm.
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| CN2010102375070A CN101942165B (en) | 2010-07-27 | 2010-07-27 | Nuclear grade ultrasonic inspection couplant and preparation method thereof |
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| CN106075480A (en) * | 2016-07-06 | 2016-11-09 | 安徽智博新材料科技有限公司 | A kind of medical ultrasonic coupling agent of self-cleaning sustainable use |
| CN108287198A (en) * | 2017-01-07 | 2018-07-17 | 北京鑫泽源铁路技术发展有限公司 | Steel rail ultrasonic flaw detecting couplant and its preparation method |
| CN108285555A (en) * | 2017-01-07 | 2018-07-17 | 北京鑫泽源铁路技术发展有限公司 | Steel rail welding seam ultrasonic inspection couplant and its preparation method |
| CN106959343A (en) * | 2017-03-20 | 2017-07-18 | 北京中鼎合信科技发展有限公司 | A kind of water base ultrasonic inspection couplant composition of environment-friendly high-efficiency and preparation method thereof |
| CN107243444A (en) * | 2017-06-08 | 2017-10-13 | 江阴兴澄特种钢铁有限公司 | The apparatus and method that the online antirust of steel is realized during non-destructive ultrasonic wave inspection |
| CN107389801A (en) * | 2017-06-09 | 2017-11-24 | 艾因蒂克检测科技（上海）股份有限公司 | A kind of couplant for resistance spot welding ultrasound examination and preparation method thereof |
| CN107367551B (en) * | 2017-07-04 | 2020-11-13 | 中国铁道科学研究院金属及化学研究所 | Coupling agent for ultrasonic flaw detection of steel rail welding seam |
| CN108132307B (en) * | 2017-10-26 | 2020-12-04 | 湖南金化科技集团有限公司 | Industrial coupling agent for steel rail flaw detection and preparation method thereof |
| CN112834615A (en) * | 2020-12-31 | 2021-05-25 | 山东医学高等专科学校 | Ultrasonic coupling agent for railway steel rail flaw detection and preparation method thereof |
| CN112798692A (en) * | 2020-12-31 | 2021-05-14 | 山东医学高等专科学校 | Ultrasonic coupling agent for flaw detection of railway steel rail joint and train wheel hub and preparation method thereof |
| CN113150478B (en) * | 2021-04-23 | 2023-06-30 | 广州机械科学研究院有限公司 | Ultrasonic coupling agent and preparation method and application thereof |
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| CN1070927A (en) * | 1992-09-12 | 1993-04-14 | 鞠坚果 | Universal non-wear supersonic couplant |
| CN101195703B (en) * | 2006-09-19 | 2012-05-30 | 二重集团（德阳）重型装备股份有限公司 | Couplant for fault detection and method for producing the same |
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Owner name: SUZHOU MARKTEC FLAW DETECTION MATERIAL CO., LTD. Free format text: FORMER NAME: SHANGHAI CHENGYOU INDUSTRIAL GROUP CO., LTD. |
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Address after: 215237, Xinxing Road, copper Luo town, Jiangsu, Wujiang, 88 Patentee after: Suzhou Marktec Flaw Detection Material Co., Ltd. Patentee after: Shanghai Chengyou Industrial Group Co., Ltd. Patentee after: Shanghai Suzhou Marktec Flaw Detection Material Co., Ltd. Address before: 200437 108 Hui River Road, Shanghai, Hongkou District Patentee before: Shanghai Chengyou Industrial Group Co., Ltd. Patentee before: Shanghai Suzhou Marktec Flaw Detection Material Co., Ltd. Patentee before: Suzhou Marktec Flaw Detection Material Co., Ltd. |