JPH0381653A - Color contrast penetrant examination for work - Google Patents
Color contrast penetrant examination for workInfo
- Publication number
- JPH0381653A JPH0381653A JP21615789A JP21615789A JPH0381653A JP H0381653 A JPH0381653 A JP H0381653A JP 21615789 A JP21615789 A JP 21615789A JP 21615789 A JP21615789 A JP 21615789A JP H0381653 A JPH0381653 A JP H0381653A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- work
- dyeing
- cleaning
- penetrating liquid
- 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
Links
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims abstract description 27
- 230000000149 penetrating effect Effects 0.000 claims abstract description 22
- 230000007547 defect Effects 0.000 claims abstract description 21
- 238000004043 dyeing Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 239000007921 spray Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims 1
- 238000007664 blowing Methods 0.000 abstract 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 12
- 238000003860 storage Methods 0.000 description 11
- 238000005406 washing Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 7
- 230000002265 prevention Effects 0.000 description 6
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 238000013020 steam cleaning Methods 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、例えばエンジンバルブ等のワークにおける製
造中に発生したクラック等の内部欠陥を、染色浸透液に
より検査する染色探傷装方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a dyeing flaw detection method for inspecting internal defects such as cracks that occur during manufacturing in a workpiece such as an engine valve using a dyeing penetrating liquid.
染色探傷法は、安価であり、かつ簡単に行なえることか
ら、非破壊検査方法の工つとして、広範に採用されてい
る。Dyeing flaw detection is inexpensive and easy to perform, so it is widely used as a non-destructive testing method.
エンジンバルブは、常時高温高圧の燃焼ガスにさらされ
、かつ大きな繰返し荷重が作用するため、製造中に発生
した微細なりラックやピンホール等の内部欠陥を、検査
工程において厳格にチエツクし、これら欠陥品が完成品
として出荷されないように注意する必要がある。Engine valves are constantly exposed to high-temperature, high-pressure combustion gas and subjected to large repeated loads, so internal defects such as minute racks and pinholes that occur during manufacturing are strictly checked during the inspection process. Care must be taken to ensure that the product is not shipped as a finished product.
第２＠は、従来の染色探傷装方法を略示するもので、次
のような順序によって行なわれる。The second @ schematically shows a conventional dyeing flaw detection method, which is carried out in the following order.
まず、多数のエンジンバルブ（１）を収容した収納かご
（２）を、前洗浄槽（３）に満たしたイソプロピルアル
コール（４）中に所定時間浸漬して、付着している塵埃
や油脂分等を除去する。First, a storage basket (2) containing a large number of engine valves (1) is immersed in isopropyl alcohol (4) filled in a pre-cleaning tank (3) for a predetermined period of time to remove adhering dust, oil and fat. remove.
隣接する第１載置台（５）に、収納かご（２）を移載し
て、エンジンバルブ（１）を自然乾燥させる。The storage basket (2) is transferred to the adjacent first mounting table (5), and the engine valve (1) is air-dried.
隣接する染色浸透液（６）を満たした浸透槽（７）に、
収納かと（２）とともに所定時間浸漬する。In the adjoining infiltration tank (7) filled with dye infiltration liquid (6),
Soak it together with the storage container (2) for a predetermined period of time.
隣接する第２載置台（８）上に、エンジンバルブ。An engine valve is placed on the adjacent second mounting table (8).
（１）を入れた収納かご（２）を移載して、所定時間（
例えば１５分間）放置し、浸透液（６）をクラック等欠
陥内部に十分に浸透させる。Transfer the storage basket (2) containing (1) and wait for a specified period of time (
For example, for 15 minutes), the penetrating liquid (6) is allowed to sufficiently penetrate into defects such as cracks.
隣接するイソプロピルアルコール（４）等の有機溶剤を
満たした第１洗浄槽（９）と、第１洗浄槽（９）に隣接
する第２洗浄槽（１０）に、収納かと（２）とともに順
次浸漬して、エンジンバルブ（１）の表面に付着してい
る余剰浸透液（６）を除去する。They are sequentially immersed together with the storage container (2) into an adjacent first cleaning tank (9) filled with an organic solvent such as isopropyl alcohol (4) and a second cleaning tank (10) adjacent to the first cleaning tank (9). The excess penetrating liquid (6) adhering to the surface of the engine valve (1) is removed.
隣接する第３載置台（１１）上に、収納かご（２）を移
載し、人手により収納かご（２〉内よりエンジンバルブ
（１）を個別に取り出して、エンジンバルブ（１）の表
面に僅かに付着している浸透液（６）を、布切（１２）
をもって、イソプロピルアルコール（４）とともに拭い
取った後、隣接する第４載置台（１３）上の回転板（１
４）上に、軸部を上方に向けて直立させて載置する。Transfer the storage basket (2) onto the adjacent third mounting table (11), manually take out the engine valves (1) individually from inside the storage basket (2), and place them on the surface of the engine valve (1). Remove the slightly adhering penetrant (6) with a cloth (12)
After wiping it with isopropyl alcohol (4), remove the rotary plate (1) on the adjacent fourth mounting table (13).
4) Place it upright on top with the shaft facing upward.
回転板（１４）を減速モータ（１５）により、緩速で回
転させつつ、スプレー缶（１６）より現像剤（１７）を
、エンジンバルブ（１）に均一に吹付け、その表面に白
色現像膜を作る。While rotating the rotary plate (14) at a slow speed by the deceleration motor (15), the developer (17) is uniformly sprayed onto the engine valve (1) from the spray can (16) to form a white developed film on its surface. make.
隣接する検査台（１８）の上面に設けたローラーコンベ
ヤ（１９）上に、回転板（１４）を移載し、現像剤（１
７）の乾燥したエンジンバルブ（１）の表面に照明灯（
２０）を照射して、クラック等より浸出した赤色の傷痕
の有無を、目視により検査して、不良品を除去する。The rotary plate (14) is transferred onto the roller conveyor (19) provided on the top surface of the adjacent inspection table (18), and the developer (1
7) Place a lighting lamp (on the surface of the dry engine valve (1)).
20) is irradiated and visually inspected for the presence of red scars oozing out from cracks, etc., and defective products are removed.
隣接する第５載置台（２１）上の空かご（２）内に、エ
ンジンバルブ（１）の良品のみを収容する。Only good engine valves (1) are stored in the empty basket (2) on the adjacent fifth mounting table (21).
最後に、隣接する洗油（２２）を満たした第３洗浄４’
！？ （２３）に、エンジンバルブ（１）の入っている
収納かと（２）を浸漬して、表面に付着している現像剤
を除去する。Finally, the third wash 4' filled with the adjacent wash oil (22)
! ? The container (2) containing the engine valve (1) is immersed in (23) to remove the developer attached to the surface.
染色探傷法においては、クラック等欠陥内部に浸透して
いる油脂骨等を完全に除去するとともに、その後の工程
において、欠陥内部に染色浸透液を十分に浸透させるこ
とが、検出感度を高めるうえで重要である。In the dyeing flaw detection method, in order to increase detection sensitivity, it is necessary to completely remove oil and fat bones that have penetrated inside defects such as cracks, and to allow the dye penetrating liquid to sufficiently penetrate inside the defects in the subsequent process. is important.
しかし、上記した従来の方法のように、前洗浄及び染色
浸透液への浸漬を常温で行なうと、微細なりラックやピ
ンホール等に浸透している油脂骨等が、欠陥内部に一部
残留して、染色浸透液が十分に浸透しないことがある。However, if pre-cleaning and immersion in dye penetrating solution are performed at room temperature as in the conventional method described above, some of the oil and fat bones that have penetrated into minute racks and pinholes remain inside the defects. Therefore, the dye penetrant may not penetrate sufficiently.
このようになると、欠陥部は、鮮明な赤色となって呪わ
れてこないので、微細なりラック等を見落す恐れがある
。In this case, the defective part becomes a clear red color and is not cursed, so there is a risk that a minute rack or the like may be overlooked.
本発明は、上記問題点を解決するためになされたもので
、欠陥内部よりの油脂骨等の除去率を高めて、染色浸透
液の浸透性を向上させ、もって欠陥個所の検出感度を高
めうるようにしたワークの染色探傷装方法を提供するこ
とを目的としている。The present invention has been made in order to solve the above-mentioned problems, and it is possible to increase the removal rate of oily bones etc. from inside the defect, improve the permeability of the dye penetrant, and thereby increase the detection sensitivity of the defect location. The purpose of the present invention is to provide a dyeing method for flaw detection of a workpiece.
上記目的を達成するため、本発明方法は、ワークの表面
に染色浸透液を吹付け、ワークにおける欠陥の内部に浸
透した染色浸透液だけを残して。In order to achieve the above object, the method of the present invention sprays a dye penetrating liquid onto the surface of a workpiece, leaving only the dye penetrating liquid that has penetrated into defects in the workpiece.
余剰浸透液を除去したのち、現像剤を吹付けて、赤色表
示される欠陥部を目視検査する染色探傷装方法において
、前記ワークを所定の温度まで加熱して前洗浄したのち
、常温よりも高い所要の予熱温度まで冷却し、ついで、
この予熱状態にあるワークの表面に、前記染色浸透液を
吹付けることを特徴としている。In the dyeing flaw detection method, in which a developer is sprayed after removing excess penetrating liquid and visually inspecting defective areas that are displayed in red, the workpiece is heated to a predetermined temperature and pre-cleaned, and then heated to a temperature higher than room temperature. Cool to the required preheat temperature, then
The method is characterized in that the dye penetrating liquid is sprayed onto the surface of the workpiece in this preheated state.
本発明によると、ワークが加熱されているため、クラッ
ク等欠陥内部に浸透している油脂骨等の流動性が高まり
、外部に速やかに排出される。According to the present invention, since the workpiece is heated, the fluidity of oil and fat bones, etc. that have penetrated inside defects such as cracks increases, and is quickly discharged to the outside.
予熱状態にあるワークに染色浸透液を吹付けると、この
浸透液の粘度が低下するので、クラック等欠陥内部への
浸透性は高まる。When a dye penetrating liquid is sprayed onto a preheated workpiece, the viscosity of this penetrating liquid decreases, increasing its ability to penetrate into defects such as cracks.
第１図は１本発明の一実施例を示すもので、（３１）は
、収納かと（２）に収容された多数のエンジンバルブ（
１）を蒸気洗浄するための前洗浄槽で、その内側下部に
貯留されているトリクロールエタン（クロロセン） （
３２）は、底面に沿って設けたヒータ（３３）により、
はぼ７０℃〜８０℃まで加熱されている、これにより、
トリクロールエタン（３２）は、気化して上昇し、内周
面上部に設けた冷却管（３４）により急冷されて流下し
、トリクロールエタン（３２）の蒸気は、前洗浄槽（３
１）内を矢印のように循環する。Figure 1 shows an embodiment of the present invention, in which (31) indicates a large number of engine valves (2) housed in the storage compartment (2).
1) This is a pre-cleaning tank for steam cleaning the trichloroethane (chlorocene) stored in the lower part of the tank.
32) is equipped with a heater (33) along the bottom.
The food is heated to 70°C to 80°C, and as a result,
Trichloroethane (32) vaporizes and rises, is quickly cooled down by a cooling pipe (34) provided at the upper part of the inner peripheral surface, and flows down.
1) Circulate inside like an arrow.
収納かと（２）に収容されている多数のエンジンバルブ
（１）を、エレベータ（３５）により、前洗浄槽（３１
）の中央部まで下降させ、所定時間（たとえば１分間）
保持して引き上げると、循環するトリクロールエタン（
３２）の蒸気により、エンジンバルブ（１）の表面及び
クラック等欠陥内部の油脂分等が除去され、かつエンジ
ンバルブ（１）は、はぼ７０℃に加熱される。A large number of engine valves (1) housed in a storage compartment (2) are moved to a pre-cleaning tank (31) by an elevator (35).
) for a predetermined period of time (for example, 1 minute).
When held and pulled up, circulating trichloroethane (
32) steam removes oil and fat from the surface of the engine valve (1) and inside defects such as cracks, and the engine valve (1) is heated to approximately 70°C.
エンジンバルブ（１）が加熱されると、クランク等欠陥
内部に浸透している油脂分等が昇温させられて粘度が低
下するため、流動性が高まって外部に速やかに排出され
、かつ欠陥内部に残留する割合も少ない。When the engine valve (1) is heated, the oil and fat that has penetrated inside the defect such as the crank is heated up and its viscosity decreases, increasing its fluidity and quickly expelling it to the outside. The percentage remaining is also small.
なお、図示を省略したが、これらの操作は、エレベータ
（３５）を昇降させるエアーシリンダをタイマで制御す
ることにより、スイッチの開閉操作のみで、半自動的に
制御することができる。Although not shown, these operations can be semi-automatically controlled by simply opening and closing a switch by controlling the air cylinder that raises and lowers the elevator (35) with a timer.
前洗浄の終了したエンジンバルブ（１）は、収納かご（
２）とともに、隣接する緩速（たとえば０．３ｍ／ｗｉ
ｎ）のローラーコンベヤ（３６）の始端の冷却部（３６
ａ）に乗せられ、進行する間に、下方に設けたファン（
３７）により、常温よりも高い予熱温度、すなわちこの
実施例では約４０℃まで冷却される。After pre-cleaning, the engine valve (1) is placed in the storage basket (
2) and the adjacent slow speed (e.g. 0.3m/wi
cooling section (36) at the starting end of the roller conveyor (36) of
a), and while it is moving, a fan installed below (
37), it is cooled to a preheating temperature higher than room temperature, that is, in this example, to about 40°C.
（３８）は、冷却部（３６ａ）前方のローラーコンベヤ
（３６）上に設けられた浸透液吹付室で、予熱されたエ
ンジンバルブ（１）が、浸透液吹付室（３８）を通過す
る間に、スプレー（３９）より水溶性の染色浸透液（４
０）がシャワー状に吹付けられる。(38) is a permeate spray chamber provided on the roller conveyor (36) in front of the cooling section (36a), and while the preheated engine valve (1) passes through the permeate spray chamber (38), , water-soluble dye penetrant (4) than spray (39)
0) is sprayed in a shower.
浸透液吹付室（３８）の前方のローラーコンベヤ（３６
）上には、粗水洗用の第１洗浄室（４１）と、仕上水洗
用の第２洗浄室（４２）とが並設されている。The roller conveyor (36) in front of the penetrant spraying chamber (38)
), a first washing chamber (41) for rough washing and a second washing chamber (42) for finishing washing are arranged in parallel.
染色浸透液（４０）の吹付けが終了し、かつローラーコ
ンベヤ（３６）の第１液切部（３６ｂ）を進行する間に
、表面に付着している過剰の浸透液（４ｏ）が流下され
たエンジンバルブ（１）は、第１洗浄室（４１）と、そ
れに続く第２洗浄室（４２）を通過する間に、上下のス
プレー（４３） （４３）により、粗水洗と仕上水洗と
の２段階水洗がなされ、余剰浸透液が除去される。After the spraying of the dyeing penetrating liquid (40) is completed and while the dyeing penetrating liquid (40) is traveling through the first liquid cutting part (36b) of the roller conveyor (36), the excess penetrating liquid (4o) adhering to the surface is flowed down. While the engine valve (1) passes through the first cleaning chamber (41) and the second cleaning chamber (42) following it, the upper and lower sprays (43) (43) perform rough water washing and finishing water washing. A two-stage water wash is performed to remove excess permeate.
なお、仕上水洗には、清浄な温水が使用される。Note that clean warm water is used for the final wash.
上記浸透液吹付室（３８）と第１洗浄室（４１）間のコ
ンベヤ（３６）の長さは、吹付けられた浸透液（４０）
が、エンジンバルブ（１）に生じたクラック等の内部に
浸み込むまでの時間を考慮して設定されている。The length of the conveyor (36) between the penetrant spraying chamber (38) and the first cleaning chamber (41) is the length of the sprayed penetrant (40).
is set in consideration of the time required for the crack to penetrate into the interior of a crack or the like that occurs in the engine valve (1).
本実施例においては、エンジンバルブ（１）がほぼ４０
℃に予熱され、かつ吹付けられた染色浸透液（４０）が
昇温しでその粘度が低下しているので、浸透性がよく、
第１洗浄室（４１）に到達するまでの所要時間は、例え
ば５分程度で十分である。In this embodiment, the engine valve (1) is approximately 40 mm
The dyeing penetrant liquid (40), which has been preheated to ℃ and is sprayed, has good penetrating properties as its viscosity decreases as the temperature rises.
For example, about 5 minutes is sufficient for the time required to reach the first cleaning chamber (41).
（４４）は、ローラーコンベヤ（３６）の水切部（３６
ｃ）に設けられたエアノズルで、水切部（３６ｃ）を通
過する間に、前工程の水洗により付着した水滴を除去し
たのち、エンジンバルブ（１）は、エアノズル（４４）
の前方に設けた防錆室（４５）に送り込まれる。(44) is the drain section (36) of the roller conveyor (36).
After the engine valve (1) removes the water droplets that adhered to it by the water washing in the previous step while passing through the water cutter (36c) with the air nozzle provided in the air nozzle (44), the engine valve (1)
It is sent into a rust prevention chamber (45) provided in front of the.
防錆室（４５）を通過する間に、スプレー（４６） ＄
こよりエンジンバルブ（１）の表面に防錆液（４７）が
吹付けられる。While passing through the rust prevention chamber (45), spray (46) $
From this, the rust preventive liquid (47) is sprayed onto the surface of the engine valve (1).
（４８）は、防錆室（４５）の前方に設けられたエアノ
ズルで、ローラーコンベヤ（３６）の第２液切部（３６
ｃｌ）を進行する間に、上方のエアノズル（４８）より
、エンジンバルブ（１）に圧縮空気が吹付けられ、表面
に付着している防錆液（４７）が除去される。(48) is an air nozzle provided in front of the rust prevention chamber (45), and is an air nozzle installed in front of the rust prevention chamber (45).
cl), compressed air is blown onto the engine valve (1) from the upper air nozzle (48) to remove the antirust liquid (47) adhering to the surface.
（４９）は、エアノズル（４８）前方のコンベヤ上に設
けられたトンネル状の乾燥室で、エンジンバルブ（１）
は、該乾燥室（４９）を通過する間に熱風により乾燥さ
れて、ローラーコンベヤ（３６）の終端に排出される。(49) is a tunnel-shaped drying chamber installed on the conveyor in front of the air nozzle (48).
is dried by hot air while passing through the drying chamber (49) and discharged to the end of the roller conveyor (36).
（ＳＯ）は、熱風を供給する送風ファンである。(SO) is a blower fan that supplies hot air.
乾燥後のエンジンバルブ（１）は、上述の従来と同様に
、回転板（１４）に乗せ換えたのち、現像剤（１７）を
均一に吹付け、検査台（１８）上において、クラック等
の欠陥内部に残留している染色浸透液（４０）が、白色
現像膜上に浮き出しているが否かを、目視により検査す
る。その後、第３洗浄槽（２３）又は自動洗浄装置にお
いて、現像剤（１７）を水洗により除去する。After drying, the engine valve (1) is placed on the rotary plate (14) as in the above-mentioned conventional method, then the developer (17) is uniformly sprayed on it, and the engine valve (1) is placed on the inspection table (18) to check for cracks, etc. It is visually inspected to see if the dye penetrant (40) remaining inside the defect is floating on the white developing film. Thereafter, the developer (17) is removed by washing with water in the third cleaning tank (23) or an automatic cleaning device.
４
〔発明の効果〕
本発明方法によれば、クラック等欠陥内部よりの油脂分
の除去排出率が高く、かつ染色浸透液の欠陥内部への浸
透性が向上するので、微細なりラック等も鮮明に浮き出
し、欠陥を見落す恐れはなくなる。4 [Effects of the Invention] According to the method of the present invention, the rate of removal of oil and fat from inside defects such as cracks is high, and the permeability of the dye penetrant into the inside of defects is improved, so even fine cracks, racks, etc. can be clearly seen. There is no need to worry about overlooking defects.
第１図は、本発明方法の一実施例を備える工程図、 第２図は、従来の方法を示す工程図である。 （１）エンジンバルブ（ワーク） （３）前洗浄槽 （４）イソプロピルアルコール （５）第１載置台 （７）浸透槽 （９）第１洗浄槽 （１１）第３載置台 （１３）第４載置台 （１５）減速モータ （２）収納かご （６）染色浸透液 （８）第２載置台 （１０）第２洗浄槽 （１２）布切 （１４）回転板 （１６）スプレー缶 （１７）現像剤 （１９）ローラーコンベヤ （２１）第５載置台 （２３）第３洗浄槽 （３２）トリクロールエタン （３４）冷却管 （３６）ローラーコンベヤ （３６ｂ）第１液切部 （３６ｄ）第２液切部 （３８）浸透液吹付室 （４０）染色浸透液 （４２）第２洗浄室 （４４）エアーノズル （４６）スプレー （４８）エアーノズル （５０）送風ファン （１８）検査台 （２０）照明灯 （２２）洗油 （３１）前洗浄槽 （３３）ヒータ （３５）エレベータ （３６ａ）冷却部 （３６ｃ）水切部 （３７）ファン （３９）スプレー （４１）第１洗浄室 （４３）スプレー （４５）防錆室 （４７）防錆液 （４９）乾燥室 FIG. 1 is a process diagram comprising an embodiment of the method of the present invention; FIG. 2 is a process diagram showing a conventional method. (1) Engine valve (work) (3) Front cleaning tank (4) Isopropyl alcohol (5) First mounting table (7) Osmosis tank (9) First cleaning tank (11) Third mounting table (13) Fourth mounting table (15) Deceleration motor (2) Storage basket (6) Staining penetrant solution (8) Second mounting table (10) Second cleaning tank (12) Cloth cutting (14) Rotating plate (16) Spray can (17) Developer (19) Roller conveyor (21) Fifth mounting table (23) Third cleaning tank (32) Trichloroethane (34) Cooling pipe (36) Roller conveyor (36b) First liquid cutter (36d) Second liquid cutter (38) Penetrant spraying room (40) Staining penetrant solution (42) Second cleaning room (44) Air nozzle (46) Spray (48) Air nozzle (50) Air blower fan (18) Examination table (20) Lighting light (22) Oil washing (31) Front cleaning tank (33) Heater (35) Elevator (36a) Cooling section (36c) Draining section (37) Fan (39) Spray (41) First cleaning room (43) Spray (45) Rust prevention room (47) Rust prevention liquid (49) Drying room
Claims (2)
ける欠陥の内部に浸透した染色浸透液だけを残して、余
剰浸透液を除去したのち、現像剤を吹付けて、赤色表示
される欠陥部を目視検査する染色探傷方法において、 前記ワークを所定の温度まで加熱して前洗浄したのち、
常温よりも高い所要の予熱温度まで冷却し、ついで、こ
の予熱状態にあるワークの表面に、前記染色浸透液を吹
付けることを特徴とするワークの染色探傷装方法。(1) Spray the dye penetrating liquid onto the surface of the workpiece, leave only the dye penetrating liquid that has penetrated into the defects in the workpiece, remove the excess penetrating liquid, and then spray the developer on the defects that appear red. In the dyeing flaw detection method that visually inspects the workpiece, the workpiece is heated to a predetermined temperature and pre-cleaned, and then
A method for dyeing and flaw detecting a workpiece, which comprises cooling the workpiece to a required preheating temperature higher than room temperature, and then spraying the dye penetrating liquid onto the surface of the workpiece in this preheated state.
ワークを蒸気洗浄する前洗浄工程において、同時に行な
うことを特徴とする請求項（１）記載のワークの染色探
傷装方法。(2) The method for dyeing and flaw-detecting a workpiece according to claim (1), wherein heating and cleaning the workpiece are performed simultaneously in a pre-cleaning step in which the workpiece is steam-cleaned by heating and vaporizing a cleaning liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21615789A JPH0381653A (en) | 1989-08-24 | 1989-08-24 | Color contrast penetrant examination for work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21615789A JPH0381653A (en) | 1989-08-24 | 1989-08-24 | Color contrast penetrant examination for work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0381653A true JPH0381653A (en) | 1991-04-08 |
Family
ID=16684187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21615789A Pending JPH0381653A (en) | 1989-08-24 | 1989-08-24 | Color contrast penetrant examination for work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0381653A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007227968A (en) * | 2007-05-01 | 2007-09-06 | Rabo Sufia Kk | Optical information communication system |
| JP2008519444A (en) * | 2004-11-03 | 2008-06-05 | トリドニックアトコ オプトエレクトロニクス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Light emitting diode device with color conversion material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52133285A (en) * | 1976-04-30 | 1977-11-08 | Hitachi Ltd | Dyeing probe inspection method |
| JPS5414431A (en) * | 1977-07-05 | 1979-02-02 | Toyo Kagaku Kk | Production of asbestos cement board |
| JPS5919845A (en) * | 1982-07-26 | 1984-02-01 | Sumitomo Metal Ind Ltd | Permeating flaw detection |
| JPS60157038A (en) * | 1984-01-26 | 1985-08-17 | Sumitomo Metal Ind Ltd | Penetration flaw detecting means |
-
1989
- 1989-08-24 JP JP21615789A patent/JPH0381653A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52133285A (en) * | 1976-04-30 | 1977-11-08 | Hitachi Ltd | Dyeing probe inspection method |
| JPS5414431A (en) * | 1977-07-05 | 1979-02-02 | Toyo Kagaku Kk | Production of asbestos cement board |
| JPS5919845A (en) * | 1982-07-26 | 1984-02-01 | Sumitomo Metal Ind Ltd | Permeating flaw detection |
| JPS60157038A (en) * | 1984-01-26 | 1985-08-17 | Sumitomo Metal Ind Ltd | Penetration flaw detecting means |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008519444A (en) * | 2004-11-03 | 2008-06-05 | トリドニックアトコ オプトエレクトロニクス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Light emitting diode device with color conversion material |
| JP2007227968A (en) * | 2007-05-01 | 2007-09-06 | Rabo Sufia Kk | Optical information communication system |
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