JPH02187163A - Coater - Google Patents
CoaterInfo
- Publication number
- JPH02187163A JPH02187163A JP481489A JP481489A JPH02187163A JP H02187163 A JPH02187163 A JP H02187163A JP 481489 A JP481489 A JP 481489A JP 481489 A JP481489 A JP 481489A JP H02187163 A JPH02187163 A JP H02187163A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- liquid material
- pressurized
- tube
- air
- 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.)
- Granted
Links
- 239000007921 spray Substances 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 13
- 239000011344 liquid material Substances 0.000 abstract 6
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000003595 mist Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Spray Control Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明は、管内面に液状物、′＋２１に非破壊探傷剤を
塗イ（ｉする装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for applying a liquid substance to the inner surface of a tube and a non-destructive flaw detection agent to the inner surface of the tube.
（従来の技術）
鋼管などの管端、たとえばネジ部における欠陥を非破壊
的に検出するために浸透剤を塗布し、次に洗浄し、′１
！Ａ像剤を塗布し、そして欠陥の有無を観察することが
行われている。これら浸透剤及び現像剤（以下ではまと
めて探傷剤と言う）は、管端の内外面に塗イ［ｉされる
。外面への塗’ｌ’ｌＴには、さして大きな技術的問題
はないが、内面への塗４５には問題がある。従来、内面
への塗イＩはスプレー装置を人が手で持って行っている
。従って工程を自動化するうえで、この非破壊検査がネ
ックになっている。(Prior art) In order to non-destructively detect defects at the end of a steel pipe, such as a threaded part, a penetrant is applied, then cleaned, and
! The A image agent is applied and the presence or absence of defects is observed. These penetrants and developers (hereinafter collectively referred to as flaw detection agents) are applied to the inner and outer surfaces of the tube end. There are no major technical problems with coating the outside surface, but there are problems with the coating 45 on the inside surface. Conventionally, when painting inside surfaces, a person manually carries a spray device. Therefore, this non-destructive testing has become a bottleneck in automating the process.
また、より大きな問題として、探傷剤が管内に残らない
ように俊で洗浄するのであるが、管の奥の方に探傷剤が
飛散して付着しがちであり、奥の方まで洗浄することは
実際上困難である。In addition, a bigger problem is that cleaning is done with a hot spring so that the flaw detection agent does not remain inside the pipe, but the flaw detection agent tends to scatter and stick to the inner part of the pipe, so it is impossible to clean the inner part of the pipe. This is difficult in practice.
（発明が解決しようとする課題）
従って本発明は、管端内面に探傷剤などの液状物を塗布
する際に管内の奥の方に剤が飛散しない塗イＩ装置であ
って、自動化に適合した装置を提供することを目的とす
る。(Problems to be Solved by the Invention) Therefore, the present invention is a coating device that prevents the agent from scattering toward the back of the tube when applying a liquid substance such as a flaw detection agent to the inner surface of the tube end, and is suitable for automation. The purpose is to provide a device that
本発明は、管端内面に液状物を塗布する装置において、
内部に加圧された液状物が流れる空間を有し、かつ該空
間を流れた該加圧液状物が噴出する孔を円周上に有する
ところのスプレー管、及び該スプレー管の先端近傍にお
いて半径方向外側に空気を噴出してエアーカーテンを作
るところの加圧空気供給管及び加圧空気噴出路を含むこ
とを特徴とする塗布装置である。The present invention provides an apparatus for applying a liquid substance to the inner surface of a tube end.
A spray tube that has a space inside which a pressurized liquid flows, and a hole on the circumference through which the pressurized liquid that flows through the space is spouted, and a radius near the tip of the spray tube. This coating device is characterized by including a pressurized air supply pipe and a pressurized air ejection path that eject air outward in a direction to create an air curtain.
（実施例〕 以下で図面を参照しながら本発明を説明する。(Example〕 The invention will be explained below with reference to the drawings.
第１図は、本発明の装置の例を示す一部破断横面図であ
る。図において１はスプレー管である。１の内部は空間
であり、管２より加圧された液体たとえば探傷剤が供給
され、孔（ノズル〉３より探傷剤が霧状になってスプレ
ーされる。ノズル３は、スプレー管１の円周上に互に４
５°の角方位で設けた８個より成る列を軸方向に２〜４
列、都合１６〜３２個のノズルの集合を成すことができ
る。探傷剤をある程度の面積に散布するために、ノズル
３の聞［１は例えば５０〜６５°の角度で開いているこ
とが好ましい。スプレー管１表面におけるノズル３の径
は、たとえば２〜５ｎｎである。管２から供給される探
傷剤の圧力とノズル径とは相互に関連するが、探傷剤の
圧力は一般に１．５〜３気圧である。FIG. 1 is a partially cutaway cross-sectional view showing an example of the device of the present invention. In the figure, 1 is a spray tube. The inside of the spray tube 1 is a space, and a pressurized liquid such as a flaw detection agent is supplied from a tube 2, and the flaw detection agent is sprayed in the form of a mist from a hole (nozzle) 3. 4 each on the circumference
2 to 4 rows of 8 pieces arranged at 5° angular orientation in the axial direction
A row can form a set of 16 to 32 nozzles. In order to spray the flaw detection agent over a certain area, it is preferable that the nozzle 3 is opened at an angle of 50 to 65 degrees, for example. The diameter of the nozzle 3 on the surface of the spray tube 1 is, for example, 2 to 5 nn. Although the pressure of the flaw detection agent supplied from the tube 2 and the nozzle diameter are related to each other, the pressure of the flaw detection agent is generally 1.5 to 3 atmospheres.
スプレー管１の中心部に加圧空気供給管４が貫通されて
いる。加圧空気は、スプレー管１の先端近傍に備えられ
た偏向板５によって区画される加圧空気噴出路に沿って
半径方向外側に噴出してエアーカーテンを作る。偏向板
５は好ましくは、図示するようにネジによって前進後退
できて、空気の噴出量を調節できる。そのために、偏向
板５の軸部は継手金具６と螺合接続される。継手金具６
は、第２図に見取り図として示す形状をしており、四つ
の凹部がスリーブ７に嵌合固定され、凹部を加圧空気が
流れる。A pressurized air supply pipe 4 passes through the center of the spray pipe 1. The pressurized air is ejected radially outward along a pressurized air ejection path defined by a deflection plate 5 provided near the tip of the spray tube 1 to form an air curtain. The deflection plate 5 is preferably capable of being moved forward and backward by a screw as shown in the figure, so that the amount of air ejected can be adjusted. For this purpose, the shaft portion of the deflection plate 5 is threadedly connected to the joint fitting 6. Fittings 6
has the shape shown as a sketch in FIG. 2, and four recesses are fitted and fixed to the sleeve 7, and pressurized air flows through the recesses.
次に本発明装置の使用を説明する。第３図において１０
は前処理された鋼管であり、その内面の欠陥を検査する
。そのために本発明の塗布装置の偏向板５及びスプレー
管１が鋼管１０の端内面に例えば約１０ Ｃｍ挿入され
る。加圧空気管４を通して加圧空気を流し、偏向板５に
よって空気を半径方向外側（矢印１１の方向）に流す。Next, the use of the device of the present invention will be explained. 10 in Figure 3
is a pretreated steel pipe, and its inner surface is inspected for defects. For this purpose, the deflection plate 5 and the spray tube 1 of the coating device of the invention are inserted into the inner surface of the end of the steel pipe 10 by, for example, about 10 cm. Pressurized air is passed through the pressurized air pipe 4, and the deflection plate 5 causes the air to flow radially outward (in the direction of arrow 11).
これと同時に又はその直後に管２を通して加圧された浸
透剤をスプレー管１よりスプレーする。矢印１１で示す
空気流（エアーカーテン）が在るので、浸透剤飛沫が偏
向板５よりも奥の方に達して管内面を汚染することは殆
ど無い。At the same time or immediately thereafter, a pressurized penetrant is sprayed from the spray tube 1 through the tube 2. Since there is an air flow (air curtain) shown by the arrow 11, there is almost no chance that the penetrant droplets will reach deeper than the deflection plate 5 and contaminate the inner surface of the tube.
便宜には、管内面の塗布と同時に管外面をも塗布する。Conveniently, the outer surface of the tube is coated at the same time as the inner surface of the tube is coated.
そのために、浸透剤の管２を分岐してリングノズル１３
（図は省略して示す）より浸透剤をスプレーする。リン
グノズル１３は、本発明の内面塗イ［装置と一体となっ
て移動される。そのためにこれらスプレー装置はハウジ
ング１４に入れられ、ハウジング１４は台車１５と共に
例えばエアシリンダーにより、図の左右に移動される。For this purpose, the penetrant tube 2 is branched to a ring nozzle 13.
Spray a penetrant (not shown). The ring nozzle 13 is moved integrally with the internal coating apparatus of the present invention. For this purpose, these spray devices are placed in a housing 14, which is moved along with a trolley 15 to the left and right in the figure, for example by means of an air cylinder.
浸透剤の塗布が終ったなら、台車１５を右方向に移動し
てスプレー管１を鋼管から１友き出し、鋼管端の内外表
面を洗浄水で洗い、熱風乾燥する。次に常法に従い乾式
又は湿式現像を行い、欠陥指示模様を識別する。湿式現
像の場合、本発明の装置を用いることができる。When the application of the penetrant is completed, the cart 15 is moved to the right to take out the spray pipe 1 from the steel pipe, and the inner and outer surfaces of the end of the steel pipe are washed with washing water and dried with hot air. Next, dry or wet development is performed according to a conventional method to identify defective patterns. In the case of wet development, the apparatus of the present invention can be used.
なお第１図において、ノズル３をスプレー管１の円周上
全体に配した例を示したが、これに限られない。例えば
ノズル３をスプレー管１の円周上の上側半分にのみ配し
、スプレー開始後にスプレー管１を回転し、スプレー終
了時にはやはりノズル３を上側にしてスプレー管１を停
止する。これににつで、スプレー開始及び終了時に浸透
液がノズルから霧上でなくて液滴状に落下しないように
できる。また、第１図では加圧空気のための加圧空気管
４はスプレー管１の軸部を杓通しているが、これに限ら
れない。たとえば、スプレー管１外表面上のノズルが無
い個所に加圧空気管４を固定することもできる。第１図
では偏向板の向きはスプレー管１の軸と直角方向になっ
ているが、これに限らず、たとえば偏向板がスプレー管
１の方向に傾斜していることもできる。Although FIG. 1 shows an example in which the nozzles 3 are arranged around the entire circumference of the spray tube 1, the present invention is not limited to this. For example, the nozzle 3 is arranged only on the upper half of the circumference of the spray tube 1, the spray tube 1 is rotated after spraying starts, and the spray tube 1 is stopped with the nozzle 3 on the upper side when spraying is finished. This prevents the penetrating liquid from falling from the nozzle in the form of droplets rather than on a mist at the start and end of spraying. Further, in FIG. 1, the pressurized air pipe 4 for pressurized air passes through the shaft of the spray pipe 1, but the invention is not limited thereto. For example, the pressurized air tube 4 can be fixed to a location on the outer surface of the spray tube 1 where there is no nozzle. In FIG. 1, the direction of the deflection plate is perpendicular to the axis of the spray tube 1, but the present invention is not limited to this, and the deflection plate may be inclined in the direction of the spray tube 1, for example.
（発明の効果）
本発明により、管端内面の塗布において、管の奥の部分
を汚染せずに塗イ５でき、かつ手作業によらず自動化が
容易な塗布装置が提供された。(Effects of the Invention) The present invention provides a coating device that can coat the inner surface of a tube end without contaminating the inner part of the tube, and that can be easily automated without manual work.
第１図は、本発明の塗布装置の例を示す一部破断横面図
であり、第２図は第１図中の継手金具６の見取図である
。
第３図は、第１図の装置の使用例を示す概略配置図であ
る。
図中の主な数字は下記のものを示す。
１・・・・・・スプレー管 ２・・・・・・管３・
・・・・・ノズル ４・・・・・・加圧空気管
５・・・・・・偏向板 １０・・・・・・鋼
管１３・・・・・・リングノズル
出 願 人： 住友金属工業株式会社マークデック
株式会社FIG. 1 is a partially cutaway side view showing an example of the coating device of the present invention, and FIG. 2 is a sketch of the joint fitting 6 in FIG. 1. FIG. 3 is a schematic layout diagram showing an example of use of the device of FIG. 1. The main numbers in the figure indicate the following. 1... Spray tube 2... Tube 3.
... Nozzle 4 ... Pressurized air pipe 5 ... Deflection plate 10 ... Steel
Pipe 13...Ring nozzle Applicant: Sumitomo Metal Industries, Ltd. Mark Deck Co., Ltd.
Claims (1)
された液状物が流れる空間を有し、かつ該空間を流れた
該加圧液状物が噴出する孔を円周上に有するところのス
プレー管、及び該スプレー管の先端近傍において半径方
向外側に空気を噴出してエアーカーテンを作るところの
加圧空気供給管及び加圧空気噴出路を含むことを特徴と
する塗布装置。A device for applying a liquid substance to the inner surface of a tube end, which has a space inside which a pressurized liquid flows, and a hole on the circumference through which the pressurized liquid flows out after flowing through the space. 1. A coating device comprising a spray pipe, and a pressurized air supply pipe and a pressurized air ejection path that eject air radially outward near the tip of the spray pipe to create an air curtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1004814A JPH0651139B2 (en) | 1989-01-13 | 1989-01-13 | Coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1004814A JPH0651139B2 (en) | 1989-01-13 | 1989-01-13 | Coating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02187163A true JPH02187163A (en) | 1990-07-23 |
| JPH0651139B2 JPH0651139B2 (en) | 1994-07-06 |
Family
ID=11594212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1004814A Expired - Lifetime JPH0651139B2 (en) | 1989-01-13 | 1989-01-13 | Coating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0651139B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5479140A (en) * | 1991-09-27 | 1995-12-26 | Ngk Insulators, Ltd. | Dielectric ceramic composition containing ZnO-B2 O3 -SiO2 glass, method of preparing the same, and resonator and filter using the dielectric ceramic composition |
| US5485132A (en) * | 1991-09-27 | 1996-01-16 | Ngk Insulators, Ltd. | Dielectric ceramic composition containing ZnO-B2 O3 -SiO2 glass, method of preparing the same, and resonator and filter using the dielectric ceramic composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5144142A (en) * | 1974-07-22 | 1976-04-15 | Fischer Ag Georg |
-
1989
- 1989-01-13 JP JP1004814A patent/JPH0651139B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5144142A (en) * | 1974-07-22 | 1976-04-15 | Fischer Ag Georg |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5479140A (en) * | 1991-09-27 | 1995-12-26 | Ngk Insulators, Ltd. | Dielectric ceramic composition containing ZnO-B2 O3 -SiO2 glass, method of preparing the same, and resonator and filter using the dielectric ceramic composition |
| US5485132A (en) * | 1991-09-27 | 1996-01-16 | Ngk Insulators, Ltd. | Dielectric ceramic composition containing ZnO-B2 O3 -SiO2 glass, method of preparing the same, and resonator and filter using the dielectric ceramic composition |
| US5488019A (en) * | 1991-09-27 | 1996-01-30 | Ngk Insulators, Ltd. | Dielectric ceramic composition containing ZnO-B2 O3 -SiO2 glass, method of preparing the same, and resonator and filter using the dielectric ceramic composition |
| US5493262A (en) * | 1991-09-27 | 1996-02-20 | Ngk Insulators, Ltd. | Dielectric ceramic composition containing ZnO-B2 O3 -SiO2 glass, method of preparing the same, and resonator and filter using the dielectric ceramic composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0651139B2 (en) | 1994-07-06 |
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