CN1644766A - Flaw detecting cleansing liquid and production thereof - Google Patents
Flaw detecting cleansing liquid and production thereof Download PDFInfo
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- CN1644766A CN1644766A CN 200410093205 CN200410093205A CN1644766A CN 1644766 A CN1644766 A CN 1644766A CN 200410093205 CN200410093205 CN 200410093205 CN 200410093205 A CN200410093205 A CN 200410093205A CN 1644766 A CN1644766 A CN 1644766A
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Abstract
The invention was involved in a method of flow detection using cleaning solution and the preparation of it. The solution contents were: benzoic alcohol, Diethuylene glycol monobutyl ether, ethyl carbinol, hydriding coal oil, fatty alcohol polyoxyethylene ether, alkylbenzenesulfonic acid, the preparation of the detection cleaning solution including the following steps: screening material; batch feeder; solution of the material; purification; examination. The solution has a low level of harmful elements of F, Cl, S, Na, P. It can be used for detection of liquefied natural gas engineering and nuclear power engineering, which has a high detection sensitivity and a great breadth depth ratio.
Description
Technical field
The present invention relates to the workpiece surface permeation flaw detection, particularly a kind of flaw detecting cleansing liquid and preparation method thereof.
Background technology
The penetration testing method has become a kind of important means that is used for detecting the workpiece surface microscopic checks in the industrial production since 1934 begin development.The technology of relevant this detection method, equipment etc. have had more research, but this infiltration detection meeting stays any sequela to workpiece, still after development of special petrochemical complex and nuclear power engineering, those detect and are judged to qualified workpiece surface through the penetration testing method, because of residual flaw detection agent (comprising penetrating fluid, image-developing liquor, scavenging solution) arranged, in running in the future, cause burn into to cause leakage, bring out serious accident, just attract much attention.
Discover have several elements can cause some needle-like burn into grain boundary attack of metallic substance, particularly stainless steel surface etc. in the permeate agent.As just announced three kinds of harmful elements in nuclear engineering file (for example HAF file), they are: fluorine, chlorine, sulphur.Their free state and the content of chemical combination attitude are all wanted strict control.For example: French RCC-M-F6423 standard code, the content of chlorine, sulphur must not surpass 200PPm in the penetrant flaw detection agent, Chinese Industrial Standards (CIS) Q/UCAB005-1999[B3100 (1999) 3031] middle regulation, the content of chlorine is no more than 100PPm, and the content of fluorine, sulphur is no more than 50PPm.
In the nuclear industry, the metallic substance majority of vitals can be subjected to high temperature, high pressure, high-throughput radiation.Work after the match and the metallic substance in natural gas liquids (LNG, the CNG) engineering is in high pressure, utmost point low temperature, repeated stress, environment is more abominable.At this moment, the brittle fracture under low temperature of metal (the particularly inner bag that directly contacts with natural gas liquids) is than whenever all responsive.In the penetrant flaw detection agent harmful element except that with nuclear power engineering in have the identical undesirable action, cause the hazardness of brittle fracture under low temperature in addition.Especially for transport-ships such as liquified natural gas carrier (LNGC) or liquid chlorine, liquid monobromethane, sulfurous gas, oxyethane, because of its liquid goods that transports is greatly to the harm of environment, must strict supervision.According to " International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk " is IGC rule (International Codefor the Construction and Equipment of Ships Carrying Liquefied Gases inBulk) regulation, and the material of launch vehicle can not cause accidents such as explosion, burning with liquid goods generation burn into low-temperature embrittleness, high temperature creep, high pressure surrender etc.And, can directly form or impel indirectly the fundamental factor that form burn into embrittlement, creep just to some contained harmful elements in the used flaw detection agent of the stainless material flaw detection of making this class launch vehicle.So the construction that instrument is carried in strict this class liquid shipping of control can not be ignored with the content of harmful element in the penetrant flaw detection agent.
Experimental study and practice are investigated and to be shown, bring out metal destructive harmful element such as this class stainless steel except fluorine, chlorine, sulphur, also have sodium, phosphorus (document: Resch G; Odenthal, H:Korrosion 15, Weinheim; Verlag Chemie1992, S, 33; H.Kaesche:Die Korrosion der Metalle.Zweite Vollig neubearbeitete und erweiterte Auflage Springer-Verlag Berlin, Heidelberg.New York 1979; Fracture of brittle Solids B.R.Lawn T.R.Wilshaw, Cambridge University Press).Special in the stainless material that is under the loaded-up condition, normal temperature is during to low temperature (below 20 ℃) state, and except the influence of fluorine, chlorine, sulphur, sodium and phosphorus are also bigger to its destruction.Sodium ion easily and halogen do not have element and be combined into salt, NaCl for example, this class material impels the metallic surface to form serious pitting.The sodium ion of free state also is one of important factor that forms grain boundary attack.Phosphonium ion can play great promoter action in hot-short, cold short.And the liquid shipping is carried the working temperature of instrument (as the LNG ship) and can be reached-163 ℃, is significantly less than-20 ℃, and visible environment is more abominable, and the possibility that embrittlement takes place is bigger.Therefore, shipping is carried instrument especially as natural gas liquids (LNG, CNG) engineering penetrant flaw detection agent for liquid, except that the content of wanting strict control fluorine, chlorine, three kinds of harmful elements of sulphur, also must strictly control the content of sodium, phosphoric.But, up to the present, also do not have such penetrant flaw detection agent (penetrating fluid, image-developing liquor, scavenging solution) and control criterion thereof to come out.Domestic once had a penetrant flaw detection agent patent, CN87101195 for example, but it did not make interpellation for detrimental impurity.(ASTM D129-95, ASME: American Society of Mechanical Engineers) sulphur was had restriction, ASME-SD-808 (ASTM D80895) had restriction to chlorine to external ASME-SD-129.The currently used penetrant flaw detection agent overwhelming majority does not add control to harmful element fluorine, chlorine, sulphur, have only only a few (for example ship board nuclear level stain penetrant flaw detection agent) that fluorine, chlorine, sulphur are had control, and for important harmful element sodium, the control of phosphorus, also find no so far and close report.
In addition, as a kind of main raw of making defeated instrument of liquid shipping or packing, Ni-based stainless steel (for example invar (36% nickel steel)) with all can produce serious sequestering action after existing various penetrant flaw detection agents contact, its surface is touched regional variable color blackout, to be that its nickel-base alloy surface has embedded nonmetal-and mainly be hydrocarbon and their derivative, weakened the antirust ability of nickel-base alloy, between chelating layer and inner layer metal, all can produce " galvanic cell " phenomenon on the line of delimitation in chelating district and non-chelating district, cause corrosion of metal, under low temperature environment, reduce Ni-based stainless toughness, destroy creep property and make it produce embrittlement, make liquid shipping security defeated and storage be on the hazard.
Summary of the invention
The object of the present invention is to provide a kind of flaw detecting cleansing liquid and preparation method thereof, contact the problem that can produce serious sequestering action with Ni-based stainless steel to solve in the existing flaw detection scavenging solution the high and existing flaw detection scavenging solution of harmful element content such as fluorine, chlorine, sulphur, sodium, phosphorus.
The total design of the present invention is to adopt dipole film dialysis technology, macropore ion exchange resin adsorption technology, the organic solvent of opposed polarity, oxide compound to be mixed with a kind of fluorine, chlorine, sulphur, sodium, flaw detecting cleansing liquid that phosphorus element content is low, to adapt to the requirement of Ni-based stainless steel engineerings such as natural gas liquids engineering and nuclear power engineering to the scavenging solution of detecting a flaw.
For achieving the above object, the invention provides a kind of flaw detecting cleansing liquid, its raw material is composed as follows:
Sequence number raw material weight per-cent (%)
1. benzyl alcohol 14～76
2. diethylene glycol monobutyl ether 8～30
3. propyl alcohol 5～25
4. hydrogenated kerosene 8～22
5. fatty alcohol-polyoxyethylene ether 1～4
6. alkyl benzene sulphonate (ABS) 2～5.
The present invention also provides the preparation method of above-mentioned flaw detecting cleansing liquid, comprises the following steps:
1. screen raw material: select technical pure or chemical pure raw material for use, the content of the fluorine in the raw material, chlorine, sulphur, sodium, phosphorus is analyzed, be no more than can using of 1200PPm;
2. raw materials weighing: according to above-mentioned formula calculation and each raw material of weighing;
3. under normal temperature condition, dissolve raw material, drop into successively,, after a kind of raw material fully dissolves and stirs before treating, drop into a kind of raw material down again, finish until all raw material inputs since second raw material by listed raw material order in the above-mentioned prescription;
4. purification processes: by qualitative filter, quantitatively filter, dipole membrane filtration or macropore ion exchange resin adsorption method to the 3. step dissolve uniform solution and carry out purification processes;
5. the harmful element in the solution of purifying is detected, when chlorine＜95PPm, fluorine≤45PPm, sulphur≤45PPm, sodium≤100PPm, phosphorus≤100PPm,, otherwise repeat the 4. step purification processes again for qualified.
To purification solution harmful element detect qualified after, carry out sensitivity test: the sample of this scavenging solution is tested in the test piece of special-purpose crack with its supporting penetrating fluid, image-developing liquor, determine that it is 0.0001mm that test solution can detect width, form ratio is that 1/10 man-made fracture is qualified.
Beneficial effect of the present invention:
1, flaw detecting cleansing liquid provided by the invention is because of its Formula Design and the strict purification processes technology taked in preparation, reduced the content of fluorine-containing, chlorine, sulphur, sodium, phosphorus harmful element, the content of guaranteeing the following harmful element of monomer, free state, chemical combination attitude in this scavenging solution is controlled to be: cl content is no more than 95PPm, fluorine, sulphur are no more than 45PPm, and sodium, phosphorus are no more than 100PPm.Obviously, flaw detecting cleansing liquid provided by the invention removes content with fluorine, chlorine, three kinds of harmful elements of sulphur, and to be controlled at limiting the quantity of of nuclear power engineering standard following, also controlled the content of harmful element sodium, phosphorus, satisfy the needs of defects detection such as current engineering-natural gas liquids of having relatively high expectations (LNG, CNG) engineering metal surface microscopic checks, also be fit to the microscopic checks usefulness that nuclear power engineering detects the metallic surface, also be suitable for common engineering certainly and use;
2, flaw detecting cleansing liquid provided by the invention does not play sequestering action to Ni-based stainless steel, is applicable to the flaw detection usefulness of Ni-based stainless steel engineering (as engineerings such as LNG, nuclear power source), and its effect with existing flaw detection scavenging solution is compared as follows table:
| Fluorine | Chlorine | Sulphur | Sodium | Phosphorus | Chelating | |
| RCCM(PPm) | ????200 | ????200 | ????100 | ????- | ????- | Gently |
| ASME(％) | ????1 | ????1 | ????1 | ????- | ????- | Gently |
| Ship board nuclear industry level flaw detection agent (PPm) | ????50 | ????100 | ????50 | ????- | ????- | Heavy |
| Flaw detecting cleansing liquid of the present invention (PPm) | ????45 | ????95 | ????45 | ????40 | ????40 | Do not see |
Annotate: "-" refers to not do interpellation
3, flaw detecting cleansing liquid cleansing power provided by the invention is suitable, can form gel under certain proportion with the penetrating fluid that is complementary, and can keep the retention osmotic liquid in the defective to greatest extent, plays an important role to improving detection sensitivity; This flaw detecting cleansing liquid also can be well moistening with multiple metallic surface, removes the dirt of workpiece surface, unnecessary penetrating fluid, is the shared scavenging solution of forward and backward twice matting.Flaw detecting cleansing liquid detection sensitivity α height provided by the invention, can reach 0.0001mm, form ratio η can reach more than 1/10, be higher than general penetrant flaw detection agent (the general penetrant flaw detection agent of Gong Buing in the world, advance the product of Co., Ltd. as Japanese honor, the detection sensitivity that can reach is up to 0.0005mm, and form ratio is 1/60.Annotate: weigh the height of detection level on the engineering, the α value is the smaller the better, and the η value is the bigger the better).
Embodiment
The present invention is further illustrated below in conjunction with specific embodiment.
Embodiment 1:
The compositing formula of this flaw detecting cleansing liquid is as follows:
Sequence number raw material weight per-cent (%)
1. benzyl alcohol 76
2. diethylene glycol monobutyl ether 8
3. propyl alcohol 5
4. hydrogenated kerosene 8
5. fatty alcohol-polyoxyethylene ether 1
6. alkyl benzene sulphonate (ABS) 2.
Its preparation method comprises the following steps:
1. screen raw material: select technical pure or chemical pure raw material for use, the content of the fluorine in the raw material, chlorine, sulphur, sodium, phosphorus is analyzed, be no more than can using of 1200PPm;
2. raw materials weighing: according to above-mentioned formula calculation and each raw material of weighing;
3. under normal temperature condition, dissolve raw material, drop into successively,, after a kind of raw material fully dissolves and stirs before treating, drop into a kind of raw material down again, finish until all raw material inputs since second raw material by above-mentioned listed raw material order;
4. purification processes: by qualitative filter, quantitatively filter, dipole membrane filtration or macropore ion exchange resin adsorption method to the 3. step dissolve uniform solution and carry out purification processes;
5. the harmful element in the solution of purifying is tested, when chlorine＜95PPm, fluorine≤45PPm, sulphur≤45PPm, sodium≤100PPm, phosphorus≤100PPm,, otherwise repeat the 4. step purification processes again for qualified;
6. sensitivity test is tested with its supporting penetrating fluid, image-developing liquor the sample of this scavenging solution in the test piece of special-purpose crack, determines that it is 0.0001mm that test solution can detect width, and form ratio is that 1/10 man-made fracture is qualified.
Embodiment 2:
The compositing formula of this flaw detecting cleansing liquid is as follows:
Sequence number raw material weight per-cent (%)
1. benzyl alcohol 14
2. diethylene glycol monobutyl ether 30
3. propyl alcohol 25
4. hydrogenated kerosene 22
5. fatty alcohol-polyoxyethylene ether 4
6. alkyl benzene sulphonate (ABS) 5.
Its preparation method is with embodiment 1.
Embodiment 3:
The compositing formula of this flaw detecting cleansing liquid is as follows:
Sequence number raw material weight per-cent (%)
1. benzyl alcohol 45
2. diethylene glycol monobutyl ether 18
3. propyl alcohol 12
4. hydrogenated kerosene 18
5. fatty alcohol-polyoxyethylene ether 3
6. alkyl benzene sulphonate (ABS) 4.
Its preparation method is with embodiment 1.
Claims (3)
1, a kind of flaw detecting cleansing liquid is characterized in that its raw material is composed as follows:
Sequence number raw material weight per-cent (%)
1. benzyl alcohol 14～76
2. diethylene glycol monobutyl ether 8～30
3. propyl alcohol 5～25
4. hydrogenated kerosene 8～22
5. fatty alcohol-polyoxyethylene ether 1～4
6. alkyl benzene sulphonate (ABS) 2～5.
2, the preparation method of the described flaw detecting cleansing liquid of claim 1 is characterized in that comprising the following steps:
1. screen raw material: select technical pure or chemical pure raw material for use, the content of the fluorine in the raw material, chlorine, sulphur, sodium, phosphorus is analyzed, be no more than can using of 1200PPm;
2. raw materials weighing: according to the described formula calculation of claim 1 and each raw material of weighing;
3. under normal temperature condition, dissolve raw material, drop into successively,, after a kind of raw material fully dissolves and stirs before treating, drop into a kind of raw material down again, finish until all raw material inputs since second raw material by listed raw material order in the claim 1;
4. purification processes: by qualitative filter, quantitatively filter, dipole membrane filtration or macropore ion exchange resin adsorption method to the 3. step dissolve uniform solution and carry out purification processes;
5. the harmful element in the solution of purifying is detected, when chlorine＜95PPm, fluorine≤45PPm, sulphur≤45PPm, sodium≤100PPm, phosphorus≤100PPm,, otherwise repeat the 4. step purification processes again for qualified.
3, preparation method according to claim 2, it is characterized in that to purification solution harmful element detect qualified after, carry out sensitivity test: the sample of this scavenging solution is tested in the test piece of special-purpose crack with its supporting penetrating fluid, image-developing liquor, determine that it is 0.0001mm that test solution can detect width, form ratio is that 1/10 man-made fracture is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100932055A CN1306067C (en) | 2004-12-17 | 2004-12-17 | Flaw detecting cleansing liquid and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100932055A CN1306067C (en) | 2004-12-17 | 2004-12-17 | Flaw detecting cleansing liquid and production thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1644766A true CN1644766A (en) | 2005-07-27 |
| CN1306067C CN1306067C (en) | 2007-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100932055A Active CN1306067C (en) | 2004-12-17 | 2004-12-17 | Flaw detecting cleansing liquid and production thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888878B (en) * | 2006-07-14 | 2012-05-30 | 沪东中华造船(集团)有限公司 | Non-combustion dye check cleaning liquid and preparing method thereof |
| CN104451730A (en) * | 2014-11-25 | 2015-03-25 | 三达奥克化学股份有限公司 | Special cleaning agent for magnetic powder hardened layer of flaw detection agent for welding of copper and copper alloy workpieces |
| CN110006918A (en) * | 2019-04-17 | 2019-07-12 | 湖北三环锻造有限公司 | A kind of penetrant flaw detection agent for penetrant inspection technique |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU362038A1 (en) * | 1971-03-15 | 1972-12-13 | ALL-UNION pdtgnp ^ o-igg ^ m ^ r: ^^ 'CiJi! -! -' 'C.C'J-i | |
| US5885951A (en) * | 1997-10-31 | 1999-03-23 | Martin Panich | Aqueous solution for tile, tub and grout cleaning |
| CN1444036A (en) * | 2003-04-21 | 2003-09-24 | 上海远航助剂材料厂 | Penetration liquor for inspection and its preparation method |
-
2004
- 2004-12-17 CN CNB2004100932055A patent/CN1306067C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888878B (en) * | 2006-07-14 | 2012-05-30 | 沪东中华造船(集团)有限公司 | Non-combustion dye check cleaning liquid and preparing method thereof |
| CN104451730A (en) * | 2014-11-25 | 2015-03-25 | 三达奥克化学股份有限公司 | Special cleaning agent for magnetic powder hardened layer of flaw detection agent for welding of copper and copper alloy workpieces |
| CN110006918A (en) * | 2019-04-17 | 2019-07-12 | 湖北三环锻造有限公司 | A kind of penetrant flaw detection agent for penetrant inspection technique |
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| Publication number | Publication date |
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| CN1306067C (en) | 2007-03-21 |
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