JP3030523B2 - Penetration testing method and washing water used in the method - Google Patents
Penetration testing method and washing water used in the methodInfo
- Publication number
- JP3030523B2 JP3030523B2 JP3142285A JP14228591A JP3030523B2 JP 3030523 B2 JP3030523 B2 JP 3030523B2 JP 3142285 A JP3142285 A JP 3142285A JP 14228591 A JP14228591 A JP 14228591A JP 3030523 B2 JP3030523 B2 JP 3030523B2
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- Japan
- Prior art keywords
- water
- sodium
- washing
- permeate
- oil
- Prior art date
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Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、浸透探傷試験方法及び
該方法に用いる洗浄水に関し、洗浄廃液に起因する公害
問題を起すことなく、しかも効率よく浸透探傷試験が行
える浸透探傷試験方法を提供するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a penetrant test method and a washing water used in the penetrant test method. The present invention relates to a penetrant test method capable of performing a penetrant test efficiently without causing a pollution problem caused by a washing waste liquid. Is what you do.
【０００２】[0002]
【従来の技術】周知の通り、浸透探傷試験方法は、各種
機器、部材の表面に存在する微細なクラックや微小のピ
ンホールの如き欠陥部の探傷に古くから汎用されてお
り、「ＪＩＳ−Ｚ２３４３−１９８２」に規格化もされ
ている。その基本的態様は、油溶性可視又は蛍光染料を
溶剤に溶解してなる浸透性の強い浸透液を被検査物表面
に塗布して欠陥部に該浸透液を浸透させた後、欠陥部に
浸透せずに被検査物表面に残留している余剰浸透液をと
り除き、欠陥部に浸透している浸透液によって欠陥部の
存在を探傷するというものである。2. Description of the Related Art As is well known, the penetrant testing method has been widely used for detecting flaws such as minute cracks and minute pinholes existing on the surfaces of various devices and members for a long time. -1982 ". The basic aspect is to apply a highly permeable penetrating solution obtained by dissolving an oil-soluble visible or fluorescent dye in a solvent to the surface of a test object, allow the penetrating solution to penetrate the defective portion, and then penetrate the defective portion. Instead, the excess permeate remaining on the surface of the inspection object is removed, and the presence of the defect is detected by the permeate penetrating the defect.
【０００３】上記の浸透探傷試験方法は、使用する浸透
液の種類や余剰浸透液をとり除く処理手段の種類等に応
じて種々様々な具体的態様が採られているが、その内
に、特公昭５６−３７５０１号公報（以下「第１公報」
という）並びに特公昭５９−２８８６０号（以下「第２
公報」という）に開示されている次の通りの具体的態様
を採る浸透探傷試験方法がある。即ち、第１公報には、
浸透液として水に対して相溶性を有さない油系溶剤と油
溶性蛍光染料とからなり界面活性剤を含まない油性浸透
液を使用し、余剰浸透液をとり除く処理手段として水蒸
気を０．１〜５ｋｇ／ｃｍ２の噴射圧で被検査物表面に
吹きつけるという処理を行う浸透探傷試験方法が開示さ
れており、第２公報には、浸透液として水に対して相溶
性を有さない油系溶剤と油溶性蛍光染料又は油溶性赤色
染料とからなり界面活性剤を含まない疏水性浸透液を使
用し、余剰浸透液をとり除く処理手段として水を０．５
〜４ｋｇ／ｃｍ２の水圧で被検査物表面に吹きつけると
いう処理を行う浸透探傷試験方法が開示されている。[0003] The above-described penetrant detection test method employs various specific embodiments depending on the type of the penetrant used, the type of the treatment means for removing the surplus penetrant, and the like. Publication No. 56-37501 (hereinafter referred to as “first publication”)
And JP-B-59-28860 (hereinafter referred to as "No. 2
There is a penetrant detection test method that employs the following specific embodiments disclosed in Japanese Unexamined Patent Publication (KOKAI). That is, in the first publication,
As an infiltration solution, an oily infiltration solution containing an oil-based solvent having no compatibility with water and an oil-soluble fluorescent dye and containing no surfactant is used. A penetrant inspection method for performing a process of spraying the surface of a test object with an injection pressure of ５5 kg / cm 2 is disclosed. In the second publication, an oil having no compatibility with water as a penetrant is disclosed. A hydrophobic permeate containing a system solvent and an oil-soluble fluorescent dye or an oil-soluble red dye and containing no surfactant is used.
A penetrant testing method for performing a process of spraying a test object surface with a water pressure of ４4 kg / cm 2 is disclosed.
【０００４】そして、第１公報に「廃液は簡単に油水分
離される」（第１公報８欄１９〜２０行）と記載され、
第２公報に「浸透液一水間の比重差によって容易に分離
し、静置により短時間に浸透液と水の分離が可能とな
る」（第２公報３欄１４〜１６行）と記載されている通
り、第１公報並びに第２公報に開示されている浸透探傷
試験方法（以下「公知浸透探傷試験方法」という）によ
れば、余剰浸透液を水を用いて洗浄除去する洗浄処理に
よって生じる余剰浸透液を含んでいる水（廃液）から比
重差による油水分離によって該浸透液を分離することが
できるので洗浄廃液の処理が容易となり公害問題を引き
起すことがないとされている。[0004] The first gazette states that "the waste liquid is easily separated into oil and water" (first gazette, column 8, lines 19 to 20).
The second gazette states that "separation is easily performed by the specific gravity difference between the permeate and one water, and the permeate and water can be separated in a short time by standing still" (Second gazette, column 3, lines 14 to 16). As described above, according to the penetrant inspection method disclosed in the first and second publications (hereinafter referred to as "known penetrant inspection method"), the surplus permeate is generated by a washing process in which water is washed and removed using water. It is said that since the permeate can be separated from water (waste liquid) containing excess permeate by oil-water separation due to a difference in specific gravity, treatment of the washing waste liquid is facilitated and no pollution problem is caused.
【０００５】尚、公知浸透探傷試験方法において使用さ
れている界面活性剤を含まない油性浸透液は、溶剤除去
性蛍光（又は染色）浸透液と呼ばれ、多くの市販品があ
り、その一般的処方は、油溶性染料２〜５部、該染料を
溶解させるベース溶剤１０〜４０部及び希釈溶剤５０〜
９０部であって、通常は、有機溶剤からなる洗浄剤と組
み合して使用されている。The surfactant-free oil-based penetrant used in the known penetrant testing method is called a solvent-removable fluorescent (or dyeing) penetrant, and there are many commercially available products. The formulation is 2 to 5 parts of an oil-soluble dye, 10 to 40 parts of a base solvent for dissolving the dye, and 50 to 50 parts of a diluting solvent.
90 parts, usually used in combination with a cleaning agent comprising an organic solvent.
【０００６】[0006]
【発明が解決しようとする課題】本発明者は、公知浸透
探傷試験方法によれば、前記の通り、洗浄処理によって
生じる余剰浸透液を含んでいる水から比重差による油水
分離によって該浸透液を分離することができるとされて
いることに着目し、公害対策、洗浄処理コスト低減（特
に、水の節約）等の見地から、浸透液を分離した水を繰
返し使用して洗浄処理を行うという着想を得た。また、
本発明者は、上記着想を具現化するに当って、第１公報
に開示されている水蒸気を用いる手段よりも第２公報に
開示されている水をスプレーする手段が、設備、操作
性、水の循環系路設定等の点で有利と判断した。そこ
で、第１、第２公報に例示されている各浸透液を始め、
入手可能な市販の界面活性剤を含まない油性浸透液の全
てを用いて、実験を行なったところ、次の問題点がある
ことを知った。According to the known penetrant testing method, the inventor of the present invention, as described above, separated the permeate from the water containing the surplus permeate generated by the washing process by separating oil-water with a specific gravity difference from the water. Focusing on the fact that it can be separated, the idea of performing the cleaning process by repeatedly using the water from which the permeate has been separated from the viewpoints of pollution control and reducing the cost of cleaning (particularly saving water). I got Also,
In realizing the above-mentioned idea, the present inventor has found that the means for spraying water disclosed in the second publication is more equipment, operability, and water than the means using steam disclosed in the first publication. It was judged to be advantageous in terms of setting the circulating system. Therefore, starting with each of the permeating liquids exemplified in the first and second publications,
Experiments were performed using all of the commercially available oil-based permeates containing no surfactant and found the following problems.
【０００７】即ち、第１の問題点は常温（２０〜２５
℃）下において静置状態での油水分離による浸透液の分
離には、少なくとも約３０分以上という長時間を必要と
したという点であり、第２の問題点は水蒸気でなく水を
用いると４ｋｇ程度の水圧による吹きつけでは多量の水
を用いない限り余剰浸透液を充分に洗浄できず精度の高
い探傷結果が得られなかったという点である。従って、
本発明は上記問題点に鑑み、洗浄処理によって生じる余
剰浸透液を含んでいる水から常温下における油水分離に
より速やかに浸透液の分離が可能となる技術的手段を確
立するとともに、比較的小量の洗浄水の吹きつけによっ
て余剰浸透液を充分に洗浄でき精度の高い探傷結果が得
られる技術的手段を確立して、洗浄処理において浸透液
を分離した洗浄水を繰返して使用できしかも効率よく浸
透探傷試験が行える新規浸透探傷試験方法を提供するこ
とを技術的課題とする。That is, the first problem is that the normal temperature (20 to 25)
C)), the separation of the permeate by oil-water separation in a stationary state under a temperature of at least about 30 minutes was required. The second problem was that if water was used instead of steam, 4 kg was used. Spraying with a moderate water pressure cannot sufficiently wash the excess permeate unless a large amount of water is used, so that a highly accurate flaw detection result cannot be obtained. Therefore,
In view of the above problems, the present invention establishes a technical means that enables rapid separation of permeate from water containing excess permeate generated by the washing process by oil-water separation at room temperature, and has a relatively small amount. Establishes a technical means to sufficiently clean the excess permeate by spraying the wash water and obtain a high-precision flaw detection result. The wash water from which the permeate has been separated can be used repeatedly and efficiently permeated in the washing process. It is a technical subject to provide a new penetrant test method capable of performing a flaw detection test.
【０００８】[0008]
【課題を解決するための手段】前記技術的課題は、次の
通りの本発明によって達成できる。The above technical objects can be achieved by the present invention as described below.
【０００９】即ち、本発明は、水に対して相溶性を有さ
ないベース溶剤、水に対して相溶性を有さない希釈溶剤
及び油溶性染料からなる界面活性剤を含まない浸透液を
被検査物表面に塗布して欠陥部に該浸透液を浸透させる
浸透処理を行い、次いで欠陥部に浸透せずに被検査物表
面に残留している余剰浸透液を水を用いて洗浄除去する
洗浄処理を行い、次いで被検査物表面を乾燥させる乾燥
処理を行った後、欠陥部に浸透している浸透液によって
欠陥部の存在を探傷する浸透探傷試験方法において、前
記洗浄処理を、被検査物表面に硫酸マグネシウム、硫酸
アンモニウム、亜硫酸ナトリウム、塩化マグネシウム、
ヘキサメタリン酸ナトリウム、亜硝酸ナトリウム、炭酸
ナトリウム、トリポリリン酸ナトリウム、オルソケイ酸
ナトリウム、炭酸水素ナトリウム及び第１リン酸ナトリ
ウムから選ばれる一種又は二種以上の無機塩類が水に対
して0.2 〜0.5 重量％溶存している洗浄水を少なくとも
６kg/cm2以上の水圧で吹きつけるとともに該吹きつけた
洗浄処理によって生じる余剰浸透液を含んでいる洗浄水
から比重差による油水分離によって該余剰浸透液を分離
した洗浄水を繰返し使用して行うことを特徴とする浸透
探傷試験方法。That is, the present invention provides a base solvent having no compatibility with water, a diluting solvent having no compatibility with water, and a permeating solution containing no surfactant comprising an oil-soluble dye. A cleaning process in which the permeation liquid is applied to the surface of the inspection object to penetrate the defective portion with the permeating liquid, and then the excess permeating liquid remaining on the surface of the inspection object without permeating the defective portion is washed and removed with water. After performing a drying process for drying the surface of the test object, and then performing a test for detecting the presence of the defective portion with a penetrating liquid that has penetrated into the defective portion, in the penetration test method, the cleaning process includes: Magnesium sulfate, sulfuric acid on the surface
Ammonium, sodium sulfite, magnesium chloride,
Sodium hexametaphosphate, sodium nitrite, carbonic acid
Sodium, sodium tripolyphosphate, orthosilicic acid
Sodium, sodium bicarbonate and sodium phosphate monobasic
<br/> cleaning care-該吹 with one or two or more inorganic salts selected from um blows at least 6 kg / cm 2 or more pressure washing water are dissolved 0.2-0.5 wt% in water A penetrant detection test method characterized by repeatedly using washing water obtained by separating the excess permeate from the wash water containing the excess permeate generated by the treatment by oil-water separation due to a difference in specific gravity from the wash water.
【００１０】並びに、硫酸マグネシウム、硫酸アンモニ
ウム、亜硫酸ナトリウム、塩化マグネシウム、ヘキサメ
タリン酸ナトリウム、亜硝酸ナトリウム、炭酸ナトリウ
ム、トリポリリン酸ナトリウム、オルソケイ酸ナトリウ
ム、炭酸水素ナトリウム及び第１リン酸ナトリウムから
選ばれる一種又は二種以上の無機塩類が水に対して0.2
〜0.5 重量％溶存させてなる浸透探傷試験方法に用いる
洗浄水である。And magnesium sulfate, ammonium sulfate
, Sodium sulfite, magnesium chloride, hexame
Sodium tarate, sodium nitrite, sodium carbonate
, Sodium tripolyphosphate, sodium orthosilicate
Water, one or more inorganic salts selected from sodium bicarbonate and monobasic sodium phosphate are added in an amount of 0.2 to water.
This is washing water used in a penetrant testing method in which 0.5% by weight is dissolved.
【００１１】本発明の構成をより詳しく説明すれば、次
の通りである。先ず、本発明に係る浸透探傷試験方法
は、その洗浄処理を除けば、従来の浸透探傷試験方法と
同様である。即ち、浸透処理は、常法に従い、浸透液と
して、浸透探傷試験用として市販されている溶剤除去性
蛍光（又は染色）浸透液、例えば、「蛍光浸透液ＯＤ−
１７００Ａ」（商品名・マークテック（株）製）や「染
色浸透液Ｐ−ＳＴ」（商品名・マークテック（株）製）
を用い、これを被検査物表面に塗布して欠陥部に浸透さ
せればよい。The configuration of the present invention will be described in more detail as follows. First, the penetration test method according to the present invention is the same as the conventional penetration test method except for the cleaning process. That is, in the permeation treatment, a solvent-removable fluorescent (or dyeing) permeate, which is commercially available for permeation testing, is used as a permeate according to a conventional method, for example, "Fluorescent permeate OD-
1700A "(trade name, manufactured by Marktec Co., Ltd.) and" Dyeing penetrant P-ST "(trade name, manufactured by Marktech Co., Ltd.)
It may be applied to the surface of the object to be inspected and penetrated into the defective portion.
【００１２】乾燥処理も、常法に従い、後記洗浄処理終
了後の被検査物表面を、自然乾燥又は加熱乾燥すること
によって行なえばよい。The drying treatment may be carried out according to a conventional method by naturally drying or heating the surface of the inspection object after the cleaning treatment described later.
【００１３】乾燥処理が終了すれば、欠陥部に浸透して
いる浸透液によって欠陥部の存在を探傷する。探傷も、
常法に従って、蛍光浸透液を用いた場合には暗所におい
て紫外線灯（ブラックライト）照射下で行ない、染色浸
透液を用いた場合には白色光下で行なえばよい。When the drying process is completed, the presence of the defect is detected by the penetrating liquid penetrating the defect. Inspection,
According to an ordinary method, when a fluorescent penetrant is used, it may be performed in a dark place under irradiation of an ultraviolet lamp (black light), and when a dye penetrant is used, it may be performed under white light.
【００１４】洗浄処理は、上記浸透処理終了後の被検査
物表面に本発明に係る洗浄水を少なくとも６ｋｇ／ｃｍ
２以上の水圧で吹きつけるとともに洗浄処理によって生
じる余剰浸透液を含んでいる洗浄水から比重差による油
水分離によって該余剰浸透液を分離した洗浄水を繰返し
使用して行う。In the cleaning process, at least 6 kg / cm of the cleaning water according to the present invention is applied to the surface of the test object after the completion of the infiltration process.
Spraying is performed by using two or more water pressures and washing water obtained by separating the excess permeate from the wash water containing the excess permeate generated by the washing treatment by oil-water separation based on a specific gravity difference.
【００１５】この場合、６ｋｇ／ｃｍ２以上の水圧によ
れば欠陥部に浸透せずに被検査物表面に残留している余
剰浸透液を充分に洗浄でき、水圧を高くすればするほど
洗浄時間を短縮することができ、例えば２０ｋｇ／ｃｍ
２の水圧とすれば１５〜２５秒間で充分に洗浄できる。
洗浄時間、設備等を勘案すれば１０〜３０ｋｇ／ｃｍ２
程度の水圧が実用的である。吹きつけには、周知の高圧
ポンプとスプレーノズルとが使用できる。In this case, if the water pressure is 6 kg / cm 2 or more, the excess penetrating liquid remaining on the surface of the inspection object without permeating the defective portion can be sufficiently cleaned, and the higher the water pressure, the longer the cleaning time. Can be reduced, for example, 20 kg / cm
If the water pressure is 2 , the washing can be sufficiently performed in 15 to 25 seconds.
10-30 kg / cm 2 considering the cleaning time, equipment, etc.
A moderate water pressure is practical. A well-known high-pressure pump and spray nozzle can be used for spraying.
【００１６】また、被検査物表面に吹きつけた本発明に
係る洗浄水を集め、比重差による油水分離によって余剰
浸透液を分離した後、再び吹きつきるが、余剰浸透液の
分離は、常温下において静置状態を、５〜２０分間保持
すれば充分であり、最も長くとも３０分以上の静置を必
要とすることはない。尚、分離した浸透液は、被検査物
に付着していたほこりや探傷試験実施場所周辺のほこり
等によって汚れていない場合には再使用でき、汚れが激
しい場合には燃焼によって処理する。Further, the washing water according to the present invention sprayed on the surface of the object to be inspected is collected, and the excess permeate is separated by oil-water separation due to a difference in specific gravity, and then sprayed again. In this case, it is sufficient to hold the stationary state for 5 to 20 minutes, and there is no need to leave the stationary state for at least 30 minutes or longer. The separated permeate can be reused if it is not contaminated by dust adhering to the object to be inspected or dust around the flaw detection test site. If the contaminated liquid is severe, it is treated by burning.
【００１７】本発明に係る洗浄水は、硫酸マグネシウ
ム、硫酸アンモニウム、亜硫酸ナトリウム、塩化マグネ
シウム、ヘキサメタリン酸ナトリウム、亜硝酸ナトリウ
ム、炭酸ナトリウム、トリポリリン酸ナトリウム、オル
ソケイ酸ナトリウム、炭酸水素ナトリウム及び第１リン
酸ナトリウムから選ばれる一種又は二種以上の無機塩類
（以下「特定無機塩類」という）を水に対して0.2 〜0.
5 重量％溶存させたものである。The washing water according to the present invention is magnesium sulfate.
, Ammonium sulfate, sodium sulfite, magnesium chloride
Cium, sodium hexametaphosphate, sodium nitrite
, Sodium carbonate, sodium tripolyphosphate, ol
Sodium silicate, sodium bicarbonate and phosphorus
One or more inorganic salts selected from sodium acid salts (hereinafter referred to as "specific inorganic salts") are added to water in an amount of 0.2 to 0.2.
5 wt% dissolved.
【００１８】本発明に係る洗浄水の調製は容易であり、
上掲の各特定無機塩類の一種又は二種以上の所要量を秤
取し水に溶解すればよい。The preparation of the washing water according to the present invention is easy,
One or more required amounts of each of the above specific inorganic salts may be weighed and dissolved in water.
【００１９】特定無機塩類の溶存量は重要である。水に
対して０．２重量％未満の場合には、比重差による油水
分離に必要な静置状態保持時間が３０分を越えてしまう
とともに被検査物表面に残留している余剰浸透液をとり
除くために必要な洗浄時間も長く（例えば、２０ｋｇ／
ｃｍ２の水圧で吹きつけるとき、充分な洗浄を行なうに
は約３５秒間以上を必要とする。）なってしまう。これ
等の時間短縮効果は、溶存量にほぼ比例して大きくなる
が、水に対して０．５重量％までで所期の効果が得られ
るので、０．５重量％以上とする必要はない。実用上好
ましい溶存量は水に対して０．３５〜０．４５重量％の
範囲である。The dissolved amount of specific inorganic salts is important. If it is less than 0.2% by weight of water, the standing time required for oil-water separation due to the difference in specific gravity exceeds 30 minutes, and excess permeate remaining on the surface of the test object is removed. The washing time required for this is long (for example, 20 kg /
When spraying with a water pressure of 2 cm 2 , sufficient cleaning requires about 35 seconds or more. )turn into. These time-reducing effects increase almost in proportion to the dissolved amount, but the desired effect can be obtained up to 0.5% by weight of water, so that it is not necessary to use 0.5% by weight or more. . A practically preferable dissolved amount is in the range of 0.35 to 0.45% by weight based on water.
【００２０】尚、本発明に係る洗浄水には、必要に応じ
て、市販の水溶性防錆剤（例えばトリエタノールアミン
等）を適量添加することができ、添加によっても、上記
各時間短縮効果に悪影響を及ぼすことはない。In the washing water according to the present invention, if necessary, a suitable amount of a commercially available water-soluble rust inhibitor (eg, triethanolamine) can be added. Does not adversely affect
【００２１】次に、以上説明した通りの本発明に係る浸
透探傷試験方法を実施するに当って、浸透液として比重
１未満のものを用いれば、比重差による油水分離に必要
な静置状態保持時間をより短縮することができる。比重
１未満の浸透液としては、次の処方のものが挙げられ
る。Next, in performing the penetrant testing method according to the present invention as described above, if a permeating liquid having a specific gravity of less than 1 is used, the stationary state required for oil-water separation due to the specific gravity difference is maintained. The time can be further reduced. Examples of the permeate having a specific gravity of less than 1 include those having the following formulation.
【００２２】油溶性染料２〜５部、リン酸トリオクチ
ル、リン酸トリブチル、ジオクチルフタレート、ジブチ
ルマレート、フタル酸ジノニル、ジオクチルドデカンジ
オエート及びフマル酸ジオクチルの一種又は二種以上か
らなるベース溶剤１０〜４０部、キシレン、ジメチルナ
フタレン、クレオソート油、ソルベントナフタ、ソルベ
ッソ１００（商品名・エクソン社製）及びＫＭＣ１１３
（商品名・クレハ社製）の一種又は二種以上からなる希
釈溶剤５０〜９０部からなる界面活性剤を含まない浸透
液。A base solvent consisting of 2 to 5 parts of an oil-soluble dye, one or more of trioctyl phosphate, tributyl phosphate, dioctyl phthalate, dibutyl malate, dinonyl phthalate, dioctyl dodecandioate and dioctyl fumarate. 40 parts, xylene, dimethylnaphthalene, creosote oil, solvent naphtha, Solvesso 100 (trade name, manufactured by Exxon) and KMC113
A surfactant-free permeate comprising 50 to 90 parts of a diluting solvent comprising one or more diluents (trade name, manufactured by Kureha Corporation).
【００２３】また、洗浄水として、水に対して０．２〜
０．５重量％のピロリン酸ナトリウム又はメタケイ酸ナ
トリウムを溶存させたものを用いることによっても、被
検査物表面に残留している余剰浸透液をとり除くために
必要な洗浄時間を短縮することができる。The washing water is 0.2 to
By using a solution in which 0.5% by weight of sodium pyrophosphate or sodium metasilicate is dissolved, it is possible to shorten the cleaning time required for removing the excess permeate remaining on the surface of the test object. .
【００２４】[0024]
【作用】本発明の作用は次の通りである。先ず、本発明
方法においては、被検査物表面に少なくとも６ｋｇ／ｃ
ｍ２の水圧、好ましくは１０〜３０ｋｇ／ｃｍ２の水圧
で本発明に係る洗浄水を吹きつけることによって１５〜
２５秒間という短時間で、被検査物表面に残留している
余剰浸透液を充分に洗浄することができるが、これは本
発明に係る洗浄水が特定無機塩を特定量溶存しているこ
とに起因する。何故なら、前述の通り、単なる水を吹き
つける場合には、かかる短時間で充分な洗浄を行うこと
ができないからである。The operation of the present invention is as follows. First, in the method of the present invention, at least 6 kg / c
By spraying the washing water according to the invention at a water pressure of m 2 , preferably of 10 to 30 kg / cm 2 ,
In a short time of 25 seconds, the excess permeate remaining on the surface of the test object can be sufficiently washed, but this is because the washing water according to the present invention has a specific inorganic salt dissolved in a specific amount. to cause. This is because, as described above, when water is simply sprayed, sufficient washing cannot be performed in such a short time.
【００２５】次に、本発明方法においては、常温下で５
〜３０分間という短かい静置状態保持時間によって、洗
浄処理によって生じる余剰浸透液を含んでいる洗浄水か
ら比重差による油水分離によって該余剰浸透液を分離す
ることができるが、これも本発明に係る洗浄水が特定無
機塩を特定量溶存していることに起因する。何故なら、
前述の通り、単なる水を用いる場合には、かかる短時間
で余剰浸透液を分離することができないからである。Next, in the method of the present invention, 5
With a short standing time of about 30 minutes, the surplus permeate can be separated from the wash water containing the surplus permeate generated by the cleaning process by oil-water separation based on a difference in specific gravity. This is because such washing water has a specific inorganic salt dissolved therein in a specific amount. Because,
As described above, when only water is used, the excess permeate cannot be separated in such a short time.
【００２６】本発明に係る洗浄水、換言すれば、特定無
機塩を特定量溶存させた水が備えている上述の各時間短
縮作用についての理論的解明は、残念ながらいまだ行え
ていないが、本発明者は、同じ無機塩であっても、ピロ
リン酸ナトリウムやメタケイ酸ナトリウムを用いた場合
には、顕著な洗浄時間の短縮作用を備えていても、油水
分離のための静置状態保持時間の短縮作用は比較的小さ
い事実からして、特定無機塩の水に溶解した状態で示す
イオン径パラメーターに解明の鍵があると考えている。Unfortunately, although the washing water according to the present invention, in other words, the water in which a specific inorganic salt has been dissolved in a specific amount, has not been theoretically elucidated about the above-mentioned respective time shortening effects, The present inventor has found that even when the same inorganic salt is used, when sodium pyrophosphate or sodium metasilicate is used, even if it has a remarkable action of shortening the washing time, the standing time for oil-water separation can be reduced. The fact that the shortening effect is relatively small suggests that there is a key to elucidation of the ionic diameter parameter of the specific inorganic salt dissolved in water.
【００２７】尚、特開昭５１−１３８０５５号公報並び
に特開平１−２１０００４号公報には、無機塩類を油水
分離に使用する技術手段が開示されているが、これ等は
いずれも界面活性剤が存在する系における油水分離であ
り、本発明における界面活性剤が存在しない系における
油水分離とは、作用を全く異にするものである。JP-A-51-138055 and JP-A-1-210004 disclose technical means for using inorganic salts for oil-water separation, but all of them use a surfactant. This is oil-water separation in a system that exists, and has completely different action from oil-water separation in a system in which a surfactant is not present in the present invention.
【００２８】[0028]
【実施例】次に、実施例と比較例とにより本発明をより
詳しく説明する。Next, the present invention will be described in more detail with reference to examples and comparative examples.
【００２９】1.洗浄水の調製 水に各特定無機塩類を溶解して次の13種の洗浄水を調製
した。 洗浄水Ａ：硫酸マグネシウムが水に対して0.45重量％溶
存している洗浄水30ｌ。 洗浄水Ｂ：硫酸アンモニウムが水に対して0.45重量％溶
存している洗浄水30ｌ。 洗浄水Ｃ：亜硫酸ナトリウムが水に対して0.45重量％溶
存している洗浄水30ｌ。 洗浄水Ｄ：塩化マグネシウムが水に対して0.45重量％溶
存している洗浄水30ｌ。 洗浄水Ｅ：ヘキサメタリン酸ソーダが水に対して0.45重
量％溶存している洗浄水30ｌ。 洗浄水Ｆ：亜硝酸ナトリウムが水に対して0.20重量％溶
存している洗浄水30ｌ。 洗浄水Ｇ：炭酸ナトリウムが水に対して0.45重量％溶存
している洗浄水30ｌ。 洗浄水Ｈ：トリポリリン酸ソーダが水に対して0.45重量
％溶存している洗浄水30ｌ。 洗浄水Ｉ：オルソケイ酸ナトリウムが水に対して0.45重
量％溶存している洗浄水30ｌ。 洗浄水Ｊ：炭酸水素ナトリウムが水に対して0.45重量％
溶存している洗浄水30ｌ。 洗浄水Ｋ：第１リン酸ナトリウムが水に対して0.45重量
％溶存している洗浄水30ｌ。1. Preparation of Washing Water The following 13 kinds of washing water were prepared by dissolving each specific inorganic salt in water. Washing water A: 30 l of washing water in which magnesium sulfate is dissolved in water at 0.45% by weight. Washing water B: 30 l of washing water in which ammonium sulfate is dissolved in water at 0.45% by weight. Washing water C: 30 l of washing water in which sodium sulfite is dissolved in water at 0.45% by weight. Washing water D: 30 l of washing water in which magnesium chloride is dissolved in water at 0.45% by weight. Washing water E: 30 l of washing water in which sodium hexametaphosphate is dissolved in water at 0.45% by weight. Washing water F: 30 l of washing water in which sodium nitrite is dissolved in water at 0.20% by weight. Washing water G: 30 l of washing water in which sodium carbonate is dissolved in water at 0.45% by weight. Washing water H: 30 l of washing water in which sodium tripolyphosphate is dissolved in water at 0.45% by weight. Washing water I: 30 l of washing water in which sodium orthosilicate is dissolved in water at 0.45% by weight. Washing water J: 0.45% by weight of sodium bicarbonate based on water
30 liters of dissolved wash water. Wash water K: 30 liters of wash water in which monobasic sodium phosphate is dissolved in water at 0.45% by weight.
【００３０】また、水にピロリン酸ナトリウム並びにメ
タケイ酸ナトリウムを溶解して次の２種の洗浄水を調製
した。 洗浄水Ｌ：ピロリン酸ナトリウムが水に対して0.45重量
％溶存している洗浄水30ｌ。 洗浄水Ｍ：メタケイ酸ナトリウムが水に対して0.20重量
％溶存している洗浄水30ｌ。Further, the following two types of washing water were prepared by dissolving sodium pyrophosphate and sodium metasilicate in water. Washing water L : 30 l of washing water in which sodium pyrophosphate is dissolved in water at 0.45% by weight. Washing water M : 30 l of washing water in which sodium metasilicate is dissolved in water at 0.20% by weight.
【００３１】2.油水分離テスト 前記の各洗浄水Ａ〜Ｍを、それぞれ100ml 秤取し、各洗
浄水毎に、マヨネーズの空びん（150cc)に市販の溶剤除
去性蛍光浸透液であるＯＤ−1700Ａ（前出）0.2ml とと
もに封入し、ペイントシェーカーで１分間振盪した後、
25℃において静置し、紫外線灯の照射下で、目視によっ
て分離下層（洗浄水の層）に蛍光緑色が全く認められな
くなるまでの時間をストップウォッチを用いて測定する
ことにより、油水分離テストを行った。静置した時点か
ら蛍光緑色が全く認められなくなった時点までの時間を
表１に示す。尚、表１には、比較のため、単なる水を用
いて上記と全く同様にして行なった油水分離テストの結
果を併せて示した。2. Oil / Water Separation Test Each of the above washing waters A to M was weighed out in an amount of 100 ml, and for each washing water, OD-, a commercially available solvent-removable fluorescent penetrant, was placed in a mayonnaise empty bottle (150 cc). After sealing with 0.2ml of 1700A (shown above) and shaking for 1 minute on a paint shaker,
The oil-water separation test was performed by standing at 25 ° C and measuring the time until no fluorescent green was observed in the lower separation layer (washing water layer) at all under the irradiation of an ultraviolet lamp using a stopwatch. went. Table 1 shows the time from the standing time to the time when no fluorescent green was observed. Table 1 also shows, for comparison, the results of an oil-water separation test performed in exactly the same manner as described above using simple water.
【００３２】3.洗浄性テスト 前記の各洗浄水Ａ〜Ｍを、各洗浄水毎に、100 メッシュ
のサンドブラスト処理を施した軟鋼板に、ＯＤ−1700Ａ
（前出）をハケを用いて塗布し、５分間放置後、その塗
布面に洗浄水20kg/cm2の水圧で吹きつけ、紫外線灯の照
射下で、目視によって塗布面に蛍光緑色が全く認められ
なくなるまでの時間をストップウォッチを用いて測定す
ることにより洗浄性テストを行なった。吹きつけ開始時
点から蛍光緑色が全く認められなくなった時点までの時
間を表１に示す。尚、表１には、比較のため、単なる水
を用いて上記と全く同様にして行った洗浄性テストの結
果を併せて示した。3. Washability test Each of the above wash waters A to M was applied to a mild steel sheet which had been subjected to a sandblast treatment of 100 mesh for each wash water by OD-1700A.
Apply the above (with the brush), leave it for 5 minutes, spray the washing surface with the water pressure of 20 kg / cm 2 , and observe the fluorescent surface at all with the ultraviolet light. The detergency test was carried out by measuring the time until no longer being used with a stopwatch. Table 1 shows the time from the start of spraying to the point when no fluorescent green was observed. For comparison, Table 1 also shows the results of the detergency test performed in exactly the same manner as described above using mere water.
【表１】 [Table 1]
【００３３】４．浸透探傷試験方法の実施 前記の洗浄水Ａを用いて、次の通りの蛍光浸透探傷試験
方法を実施した。ＪＩＳ−Ｚ−２３４３−１９８２規格
のＢ型試験片（われ深さ：５０μ）に、アセトン中超音
波洗浄３０分の前処理を施した後、その試験面に、ハケ
塗りによってＯＤ−１７００Ａ（前出）を塗布して５分
間放置する浸透処理を行い、次いで、塗布面に、高圧ポ
ンプ（ＭＷ−３１０型：丸山製作所製）とノズル穴径１
ｍｍのスプレーとを用いて、水圧２０ｋｇ／ｃｍ２で、
スプレー角度２５゜の平吹にて、約２０秒間、水を吹き
つける洗浄処理を行ない、次いで、試験片を８０℃で２
分間乾燥させる乾燥処理を行ない、暗所にて紫外線灯の
照射下において、試験面を目視にて観察した。尚、洗浄
処理において生じる余剰浸透液を含んでいる洗浄水Ａ
は、常温下で約１０分間静置して油水分離によって浸透
液を分離して再び洗浄に使用した。結果は、試験面には
肉眼で明瞭な欠陥指示蛍光模様が確認できた。また、余
剰浸透液を含んでいる洗浄水Ａの油水分離も約１０分間
の静置でスムースに進行し、透明な洗浄水Ａを繰返して
洗浄に使用できた。4. Implementation of Penetration Testing Method Using the washing water A, the following fluorescence penetration testing method was carried out. A JIS-Z-2343-1982 standard B-type test piece (depth: 50 μm) is subjected to a pretreatment of ultrasonic cleaning in acetone for 30 minutes, and then the test surface is brush-coated on the OD-1700A (see above). ) Was applied and left for 5 minutes to perform a permeation treatment. Then, a high pressure pump (Model MW-310: manufactured by Maruyama Seisakusho) and a nozzle hole diameter of 1 were applied to the application surface.
mm spray and at a water pressure of 20 kg / cm 2 ,
A cleaning process of spraying water for about 20 seconds in a flat spray at a spray angle of 25 ° is performed, and then the test piece is heated at 80 ° C. for 2 seconds.
The test surface was visually observed in a dark place under irradiation of an ultraviolet lamp in a dark place. The washing water A containing excess permeate generated in the washing process
Was allowed to stand at room temperature for about 10 minutes, the permeate was separated by oil-water separation, and used again for washing. As a result, a clear defect indicating fluorescent pattern was visually confirmed on the test surface. The oil-water separation of the wash water A containing the excess permeate also proceeded smoothly for about 10 minutes, and the transparent wash water A was repeatedly used for washing.
【００３４】５．浸透探傷試験方法の実施 前記の洗浄水Ｂを用いて、次の通りの染色浸透探傷試験
方法を実施した。ＪＩＳ−Ｚ−２３４３−１９８２規格
のＢ型試験片（われ深さ：５０μ）に、アセトン中超音
波洗浄３０分の前処理を施した後、その試験面に、ハケ
塗りによって市販の溶剤除去性染色浸透液であるＰ−Ｓ
Ｔ（前出）を塗布して５分間放置する浸透処理を行な
い、次いで、塗布面に、高圧ポンプ（ＭＷ−３１０型：
丸山製作所製）とノズル穴径１ｍｍのスプレーとを用い
て、水圧２０ｋｇ／ｃｍ２で、スプレー角度２５゜の平
吹にて、２０秒間、洗浄水Ｂを吹きつける洗浄処理を行
ない、次いで、試験片を自然乾燥させる乾燥処理を行な
い、次いで、常法に従って試験面に白色無機微分末（市
販の浸透探傷用現像剤）の薄層を形成した後、白色光の
下において、試験面を目視にて観察した。尚、洗浄処理
において生じる余剰浸透液を含んでいる洗浄水Ｂは、常
温下で約１５分間静置して油水分離によって浸透液を分
離して再び洗浄に使用した。結果は、試験面には肉眼で
明瞭な欠陥指示赤色模様が確認できた。また、余剰浸透
液を含んでいる洗浄水Ｂの油水分離も約１５分間の静置
でスムースに進行し、透明な洗浄水Ｂを繰返して洗浄に
使用できた。5. Implementation of Penetration Testing Method Using the washing water B, the following staining penetration testing method was carried out. A JIS-Z-2343-1982 standard B-type test piece (depth: 50 μm) is subjected to a pretreatment of ultrasonic cleaning in acetone for 30 minutes, and then the test surface is brush-coated to obtain a commercially available solvent-removable dye. PS which is a permeating liquid
T (described above) is applied, and a permeation treatment is performed in which the applied surface is left for 5 minutes. Then, a high-pressure pump (Model MW-310:
Washing is performed by spraying washing water B for 20 seconds at a water pressure of 20 kg / cm 2 with a spray angle of 25 ° using a spray having a nozzle hole diameter of 1 mm and a spray having a nozzle hole diameter of 1 mm. Is dried naturally, and then a thin layer of a white inorganic differential powder (commercially available developer for penetrant flaw detection) is formed on the test surface according to a conventional method, and the test surface is visually observed under white light. Observed. The washing water B containing excess permeate generated in the washing treatment was allowed to stand at room temperature for about 15 minutes to separate the permeate by oil-water separation, and used again for washing. As a result, a clear defect-indicating red pattern was visually confirmed on the test surface. The oil-water separation of the wash water B containing the excess permeate proceeded smoothly for about 15 minutes, and the transparent wash water B was repeatedly used for washing.
【００３５】６．浸透探傷試験方法の実施 前記の洗浄水Ｅを用いて、次の通りの蛍光浸透探傷試験
方法を実施した。ＪＩＳ−Ｚ−２３４３−１９８２規格
のＢ型試験片（われ深さ：５０μ）に、アセトン中超音
波洗浄３０分の前処理を施した後、その試験面に、ハケ
塗りによって下記処方の浸透液を塗布して５分間放置す
る浸透処理を行ない、次いで、塗布面に、高圧ポンプ
（ＭＷ−３１０型：丸山製作所製）とノズル穴径１ｍｍ
のスプレーとを用いて、水圧２０ｋｇ／ｃｍ２で、スプ
レー角度２５゜の平吹にて、約２０秒間、水を吹きつけ
る洗浄処理を行ない、次いで、試験片を８０℃で２分間
乾燥させる乾燥処理を行ない、暗所にて紫外線灯の照射
下において、試験面を目視にて観察した。尚、洗浄処理
において生じる余剰浸透液を含んでいる洗浄水Ｅは、常
温下で約１０分間静置して油水分離によって浸透液を分
離して再び洗浄に使用した。結果は、試験面には肉眼で
明瞭な欠陥指示蛍光模様が確認できた。また、余剰浸透
液を含んでいる洗浄水Ｅの油水分離も約１０分間の静置
でスムースに進行し、透明な洗浄水Ｅを繰返して洗浄に
使用できた。蛍光浸透液の処方は次の通りである。 フロレッセントブライトニスエージェント７５（商品名
・モートン社製）１部 フロレッセントブライトニスエージェント６８（商品名
・日本化薬製）２部 ソルベッソ１５０（商品名・エクソン社製）６８部 アイソパーＧ（商品名・エクソン社製）１９部 リン酸オクチル １０部6. Implementation of Penetration Testing Method Using the washing water E, the following fluorescence penetration testing method was carried out. A JIS-Z-2343-1982 standard B-type test piece (depth: 50 μm) is subjected to a pretreatment of ultrasonic cleaning in acetone for 30 minutes. A permeation treatment of applying and leaving for 5 minutes was performed, and then a high pressure pump (Model MW-310: manufactured by Maruyama Seisakusho) and a nozzle hole diameter of 1 mm were applied to the application surface.
And a spraying process of spraying water at a water pressure of 20 kg / cm 2 at a spray angle of 25 ° for about 20 seconds, and then drying the test piece at 80 ° C. for 2 minutes. The test surface was visually observed in a dark place under irradiation of an ultraviolet lamp. The washing water E containing excess permeate generated in the cleaning treatment was allowed to stand at room temperature for about 10 minutes to separate the permeate by oil-water separation and used again for cleaning. As a result, a clear defect indicating fluorescent pattern was visually confirmed on the test surface. The oil-water separation of the washing water E containing the excess permeate also proceeded smoothly for about 10 minutes, and the transparent washing water E was repeatedly used for washing. The formulation of the fluorescent penetrant is as follows. Fluorescent Bright Varnish Agent 75 (trade name, manufactured by Morton) 1 part Florescent Bright Varnish Agent 68 (trade name, manufactured by Nippon Kayaku) 2 parts Solvesso 150 (trade name, manufactured by Exxon) 68 parts Isopar G ( Trade name (manufactured by Exxon) 19 parts Octyl phosphate 10 parts
【００３６】7.浸透探傷試験方法の実施 前記の洗浄水Ｌを用いて、次の通りの蛍光浸透探傷試験
方法を実施した。ＪＩＳ−Ｚ−2343−1982規格のＢ型試
験片（われ深さ：50μ）に、アセトン中超音波洗浄30分
の前処理を施した後、その試験面に、ハケ塗りによって
ＯＤ−1700Ａ（前出）を塗布して５分間放置する浸透処
理を行ない、次いで、塗布面に、高圧ポンプ（ＭＷ−31
0 型：丸山製作所製）とノズル穴径１mmのスプレーとを
用いて、水圧20kg/cm2で、スプレー角度25°の平吹に
て、約15秒間、水を吹きつける洗浄処理を行ない、次い
で、試験片を80℃で２分間乾燥させる乾燥処理を行な
い、暗所にて紫外線灯の照射下において、試験面を目視
にて観察した。尚、洗浄処理において生じる余剰浸透液
を含んでいる洗浄水Ｌは、常温下で約35分間静置して油
水分離によって浸透液を分離して再び洗浄に使用した。
また、余剰浸透液を含んでいる洗浄水Ｌの油水分離に
は、約35分間の静置を必要としたが、透明な洗浄水Ｌが
分離でき、繰返して洗浄に使用できた。7. Implementation of Penetration Testing Method Using the above-mentioned washing water L , the following fluorescence penetration testing method was carried out. A JIS-Z-2343-1982 B-type test piece (depth: 50μ) is subjected to ultrasonic pre-treatment in acetone for 30 minutes, and then the test surface is brush-coated to OD-1700A (see above). ) Is applied and left for 5 minutes to perform a permeation treatment. Then, a high-pressure pump (MW-31) is applied to the application surface.
0 type: manufactured by Maruyama Seisakusho) and a spray having a nozzle hole diameter of 1 mm, a water pressure of 20 kg / cm 2 , and a spraying process of spraying water for about 15 seconds at a spray angle of 25 ° for about 15 seconds. The test piece was subjected to a drying treatment of drying at 80 ° C. for 2 minutes, and the test surface was visually observed in a dark place under irradiation with an ultraviolet lamp. The washing water L containing excess permeate generated in the cleaning treatment was allowed to stand at room temperature for about 35 minutes to separate the permeate by oil-water separation, and used again for cleaning.
The oil-water separation of the wash water L containing the excess permeate required standing for about 35 minutes, but the clear wash water L could be separated and used repeatedly for washing.
【００３７】[0037]
【発明の効果】以上、説明した通りの本発明によれば、
常温下で静置状態５〜３０分間という短時間で浸透液が
完全に分離できるので、効率のよい洗浄水の繰返し使用
が可能となり、洗浄廃液を出さない閉ループ方式によっ
て浸透探傷試験方法を効率よく、実施することができ
る。また、本発明によれば、１５〜２５秒間という短時
間で被検査物表面に残留している余剰浸透液を充分に洗
浄できるので、効率よく精度の高い探傷結果を得ること
ができる。従って、本発明の産業利用性は極めて大きい
ものといえる。According to the present invention as described above,
The permeate can be completely separated in a short period of time of 5 to 30 minutes at room temperature, allowing efficient use of washing water repeatedly. The closed loop method that does not emit washing waste makes the penetrant testing method efficient. , Can be implemented. Further, according to the present invention, since the excess permeate remaining on the surface of the inspection object can be sufficiently washed in a short time of 15 to 25 seconds, a highly accurate flaw detection result can be efficiently obtained. Therefore, it can be said that the industrial applicability of the present invention is extremely large.
Claims (2)
剤、水に対して相溶性を有さない希釈溶剤及び油溶性染
料からなり界面活性剤を含まない浸透液を被検査物表面
に塗布して表面開口欠陥部（以下「欠陥部」という）に
該浸透液を浸透させる浸透処理を行い、次いで欠陥部に
浸透せずに被検査物表面に残留している余剰浸透液を水
を用いて洗浄除去する洗浄処理を行い、次いで被検査物
表面を乾燥させる乾燥処理を行った後、欠陥部に浸透し
ている浸透液によって欠陥部の存在を探傷する浸透探傷
試験方法において、前記洗浄処理を、被検査物表面に硫
酸マグネシウム、硫酸アンモニウム、亜硫酸ナトリウ
ム、塩化マグネシウム、ヘキサメタリン酸ナトリウム、
亜硝酸ナトリウム、炭酸ナトリウム、トリポリリン酸ナ
トリウム、オルソケイ酸ナトリウム、炭酸水素ナトリウ
ム及び第１リン酸ナトリウムから選ばれる一種又は二種
以上の無機塩類が水に対して0.2 〜0.5 重量％溶存して
いる洗浄水を少なくとも６kg/cm 2 以上の水圧で吹きつ
けるとともに該吹きつけた洗浄処理によって生じる余剰
浸透液を含んでいる洗浄水から比重差による油水分離に
よって該余剰浸透液を分離した洗浄水を繰返し使用して
行うことを特徴とする浸透探傷試験方法。1. A penetrating liquid comprising a base solvent having no compatibility with water, a diluting solvent having no compatibility with water and an oil-soluble dye and containing no surfactant is applied to the surface of the test object. The coating is applied to perform a permeation treatment of penetrating the penetrating liquid into a surface opening defect portion (hereinafter referred to as a “defect portion”). Performing a cleaning process of cleaning and removing the surface of the object to be inspected, and then performing a drying process of drying the surface of the inspection object, and then detecting the presence of the defective portion with a penetrating liquid penetrating the defective portion. processing, vulcanized to the object to be inspected surface
Magnesium phosphate, ammonium sulfate, sodium sulfite
, Magnesium chloride, sodium hexametaphosphate,
Sodium nitrite, sodium carbonate, sodium tripolyphosphate
Thorium, sodium orthosilicate, sodium bicarbonate
And at least 6 kg / cm 2 of water and at least 6 kg / cm 2 of water, in which one or two or more inorganic salts selected from sodium phosphate and monobasic sodium phosphate are dissolved in water. A test method comprising repeatedly using washing water obtained by separating the excess permeate from the wash water containing the excess permeate generated by the washing treatment by oil-water separation based on a difference in specific gravity from the wash water containing the extra permeate.
硫酸ナトリウム、塩化マグネシウム、ヘキサメタリン酸
ナトリウム、亜硝酸ナトリウム、炭酸ナトリウム、トリ
ポリリン酸ナトリウム、オルソケイ酸ナトリウム、炭酸
水素ナトリウム及び第１リン酸ナトリウムから選ばれる
一種又は二種以上の無機塩類が水に対して0.2 〜0.5 重
量％溶存させてなる浸透探傷試験方法に用いる洗浄水。2. Magnesium sulfate, ammonium sulfate, and zinc sulfate
Sodium sulfate, magnesium chloride, hexametaphosphoric acid
Sodium, sodium nitrite, sodium carbonate, bird
Sodium polyphosphate, sodium orthosilicate, carbonic acid
Washing water for use in a penetrant testing method in which one or more inorganic salts selected from sodium hydrogen and sodium monophosphate are dissolved in water in an amount of 0.2 to 0.5% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3142285A JP3030523B2 (en) | 1991-03-30 | 1991-03-30 | Penetration testing method and washing water used in the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3142285A JP3030523B2 (en) | 1991-03-30 | 1991-03-30 | Penetration testing method and washing water used in the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0572148A JPH0572148A (en) | 1993-03-23 |
| JP3030523B2 true JP3030523B2 (en) | 2000-04-10 |
Family
ID=15311817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3142285A Expired - Fee Related JP3030523B2 (en) | 1991-03-30 | 1991-03-30 | Penetration testing method and washing water used in the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3030523B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2859626B1 (en) * | 2003-09-12 | 2006-01-27 | Oreal | BIPHASE COMPOSITION AND USES IN THE COSMETIC FIELD |
| CN100443887C (en) * | 2005-09-15 | 2008-12-17 | 沪东中华造船(集团)有限公司 | High-temperature type dye check cleaning liquid and producing process thereof |
| FR2892815B1 (en) * | 2005-10-28 | 2008-02-01 | Turbomeca | DIAGNOSIS OR PARAMETERING OF A DETECTION FACILITY BY DETECTING DEBUGGING DEFECTS ON THE SURFACE OF WORKPIECES |
-
1991
- 1991-03-30 JP JP3142285A patent/JP3030523B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0572148A (en) | 1993-03-23 |
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