JPS6117953A - Ac portable flaw detector of interpole magnetic powder - Google Patents
Ac portable flaw detector of interpole magnetic powderInfo
- Publication number
- JPS6117953A JPS6117953A JP13862984A JP13862984A JPS6117953A JP S6117953 A JPS6117953 A JP S6117953A JP 13862984 A JP13862984 A JP 13862984A JP 13862984 A JP13862984 A JP 13862984A JP S6117953 A JPS6117953 A JP S6117953A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- base part
- inspected
- base
- extended
- 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
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
産業上曹丑■分！
本発明は鋼構造物に生じる亀裂、割れ等を検出するのに
用いる交流携帯型極間磁粉探傷装置に関するものである
。 。[Detailed description of the invention] Industrial superiority! The present invention relates to an AC portable magnetic particle flaw detector used for detecting cracks, fractures, etc. occurring in steel structures. .
従来勿肢血
一般に各種発電設備、石油精製設備、石油化学設備、石
油貯蔵タンク、高圧ガス設備等の鋼構造物の事故防止を
図るための品質管理手段として、これら鋼構造物の鋼溶
接部及び鋼材料の表面に発生する強度上有害な欠陥であ
る亀裂等を発見するため磁粉検査を行なっている。この
磁粉検査は、上記鋼溶接部及び鋼材料の表面等の被検査
部に螢光体粉末を加えた磁粉を散布し、かつ交流携帯型
極間磁粉探傷装置を用いて上記被検査部を磁化し、磁力
線の影響によって現われる磁粉１）４を目視観察により
、その状態を判断し微細な欠陥の検出を行なうものであ
る。Traditionally, as a quality control means to prevent accidents in steel structures such as various power generation facilities, oil refining facilities, petrochemical facilities, oil storage tanks, and high-pressure gas facilities, the steel welds and Magnetic particle inspection is performed to discover cracks and other defects that occur on the surface of steel materials and are harmful to strength. This magnetic particle inspection involves scattering magnetic particles containing fluorescent powder onto the parts to be inspected, such as the steel welds and surfaces of steel materials, and magnetizing the parts to be inspected using an AC portable magnetic particle flaw detection device. However, by visually observing the magnetic particles 1) 4 that appear due to the influence of magnetic lines of force, its state is determined and minute defects are detected.
第７図乃至第９図は上述の磁粉検査に用いる従来の交流
携帯型極間磁粉探傷装置を示したものである。この探傷
装置（１）は、コ字形の薄鉄板を多数枚積層してなるコ
字形の鉄芯（２）と、この鉄芯（２）の平行するコイル
捲回部（２ａ） （２ａ）に巻回積層したコイル（３
）（３）と、上記鉄芯（２）のコイル捲回部（２ａ）
（２ａ）の先端部（２ｂ） （２ｂ）のみを露出さ
せ、その他の部分を絶縁材で被覆したカバ一部（４）と
からなっており、中間部分を握持部（５）としている。FIGS. 7 to 9 show a conventional AC portable type interpolar magnetic particle flaw detector used for the above-mentioned magnetic particle inspection. This flaw detection device (1) consists of a U-shaped iron core (2) formed by laminating a large number of U-shaped thin iron plates, and a parallel coil winding portion (2a) of this iron core (2). Wound and laminated coil (3
)(3) and the coil winding part (2a) of the iron core (2)
It consists of a cover part (4) in which only the tip part (2b) (2b) of (2a) is exposed and the other part is covered with an insulating material, and the middle part is a grip part (5).
（６）は握持部（５）に設けたスイッチ、（７）はコー
ドである。（８）は鋼構造物の鋼溶接部或いは鋼材料の
表面等の被検査部である。そうして、上記の被検査部（
８）に亀裂が生じているか否かを検査する場合は、螢光
体粉末を加えた磁粉を被検査部（８）に散布すると共に
、該被検査部（８）に探傷装置（１）の鉄芯（２）の先
端部（２ｂ） （２ｂ）を当接させて通電し、磁力線
の影響によって現われる磁粉模様を目視観察する。(6) is a switch provided on the grip portion (5), and (7) is a cord. (8) is a part to be inspected, such as a steel welded part of a steel structure or the surface of a steel material. Then, check the part to be inspected (
8), when inspecting whether or not cracks have occurred, scatter magnetic powder containing fluorescent powder onto the part to be inspected (8), and place the flaw detection device (1) on the part to be inspected (8). The tips (2b) (2b) of the iron core (2) are brought into contact with each other and energized, and the magnetic particle pattern appearing due to the influence of magnetic lines of force is visually observed.
Ｂ＜ｎ°シよ゛と る 匙嘉
上記の従来の探傷装置（１）によれば、コイル捲回部（
２ａ） （２ａ）が被検査部（８）に対して略垂直と
なるので、被検査部（８）の磁粉模様を目視するときに
握持部（５）が邪魔になって該磁粉模様の状態を真上か
ら平面的に観察しにくく、これが為、亀裂等の有害な欠
陥を見落すおそれがあった。According to the conventional flaw detection device (1) described above, the coil winding part (
2a) Since (2a) is approximately perpendicular to the part to be inspected (8), the grip part (5) will get in the way when visually observing the magnetic particle pattern on the part to be inspected (8). It is difficult to observe the condition from directly above, and as a result, there is a risk that harmful defects such as cracks may be overlooked.
１′ るための 一
本発明は、鉄芯（１２）を、基部（１３）と、基部（１
３）の両端から基部（１３）と直行する方向に平行に伸
びる第１の部分（１４） （１４）と、上記第１の部
分（１４） （１４）の先端からこれと直行する方向
に平行に伸びる第２の部分（１５）（１５）とで構成し
、上記の基部（１３）を握持部（１６）とし、第１の部
分（１４） （１４）或いは第２の部分（１５）
（１５）のいずれか一方をコイル捲回部（１７） （
１７）とし、かつ第２の部分（１５）（１５）を脚部（
１８） （１Ｂ）とすると共に、上記第２の部分（１
５） （１５）の先端部（２０） （２０）を露出
させた状態で全体を絶縁材（２１）で被覆したものであ
る。One aspect of the present invention is to connect an iron core (12) to a base (13) and a base (1').
A first portion (14) (14) extending from both ends of the base (14) in a direction perpendicular to the base (13), and a first portion (14) (14) extending in a direction perpendicular to the first portion (14) from the tip of the first portion (14) (14). It consists of a second part (15) (15) extending from the base part (13) to the grip part (16), and the first part (14) (14) or the second part (15).
(15) to the coil winding part (17) (
17), and the second part (15) (15) is the leg part (
18) (1B) and the above second part (1
5) The tip (20) of (15) The entire body is covered with an insulating material (21) with (20) exposed.
ｉＪ１
第１図乃至第５図において、（１））は本発明に係る交
流携帯型極間磁粉探傷装置で、この探傷装置（１））は
、所定形状に打抜成形した薄鉄板を多数枚積層してなる
鉄芯（１２）を、所定長さ寸法の基部（１３）と、基部
（１３）の両端から基部（１３）と直交する方向に平行
に伸びる第１の部分（１４） （１４）と、上記第１
の部分（１４）（１４）の先端からこれと直交する方向
に平行に伸びる第２の部分（１５） （１５）とで構
成し、上記の基部（１３）を握持部（１６）とし、第１
の部（１４） （１４）をコイル捲回部（１７）
（１７）とし、第２の部分（１５） （１５）を脚部
（１８） （１８）とすると共に、第１の部分（１４
） （１４＞にコイル（１９）を巻回積層し、上記第
２の部分（１５）（１５）の先端部（２０） （２０
）を所定寸法露出させた状態で全体を樹脂等の絶縁材（
２１）で被覆したものである。尚、鉄芯（１２）の先端
部（２０）（２０）は一体成形したが、これは別体の部
材で着脱可能としてもよい。また、第１の部分（１４）
（１４）をコイル捲回部としたが、第１の部分（１４）
（１４）の代わりに第２の部分（１５） （１５
）をコイル捲回部としてもよい。（２２）は握持部（１
６）に設けたスイッチ、（２３）はコードである。（２
４）は鋼構造物の鋼溶接部或いは鋼材料の表面等の被検
査部で、この被検査部（２４）に螢光体粉末を加えた磁
粉を散布する。iJ1 In FIGS. 1 to 5, (1)) is an AC portable type interpolar magnetic particle flaw detection device according to the present invention, and this flaw detection device (1)) consists of a large number of thin iron plates punched into a predetermined shape. A laminated iron core (12) is made of a base (13) having a predetermined length and a first portion (14) extending from both ends of the base (13) in parallel in a direction perpendicular to the base (13). ) and the first
A second part (15) extending parallel from the tip of the part (14) in a direction orthogonal to the second part (15), the base part (13) being a gripping part (16), 1st
(14) (14) into the coil winding part (17)
(17), the second part (15) (15) is the leg part (18) (18), and the first part (14)
) (14> is wound and laminated with the coil (19), and the tip part (20) of the second part (15) (15) (20
) with a predetermined dimension exposed, cover the entire body with an insulating material such as resin (
21). Although the tips (20) and (20) of the iron core (12) are integrally molded, they may be separate members that can be attached and removed. Also, the first part (14)
(14) is the coil winding part, but the first part (14)
Second part (15) instead of (14) (15
) may be used as a coil winding part. (22) is the grip part (1
The switch provided at (6) and (23) are the cords. (2
4) is a part to be inspected such as a steel weld of a steel structure or the surface of a steel material, and magnetic powder containing fluorescent powder is sprinkled onto this part to be inspected (24).
而して、上記の被検査部（２４）の亀裂等の有無を検査
する場合は、被検査部（２４）に磁粉を散布すると共に
、探傷装置（１））の鉄芯（１２）の先端部（２０）
（２０）を被検査部（２４）に当接させて通電し、磁
力線の影響によって被検査部（２４）に現われる磁粉模
様を目視観察し、この磁粉模様の状態を判断して亀裂等
の欠陥を検出する。このとき上記探傷装置（１））の脚
部（１８）（１８）は被検査部（２４）に対して略垂直
に保持され、かつ、コイル捲回部（１７） （１７）
は被検査部（２４）と略平行な姿勢に保持されるので、
第１図の如く被検査部（２４）の上方には捏持部（１６
）が存在せず、したがって、被検査部（２４）を観察す
るとき視野が広なり磁粉模様の状態を真上から平面的に
目視することができる。When inspecting the above-mentioned part to be inspected (24) for cracks, etc., magnetic powder is scattered on the part to be inspected (24), and the tip of the iron core (12) of the flaw detection device (1)) is Part (20)
(20) is brought into contact with the part to be inspected (24) and energized, the magnetic particle pattern that appears on the part to be inspected (24) due to the influence of magnetic lines of force is visually observed, and the state of this magnetic particle pattern is judged to determine whether there are defects such as cracks, etc. Detect. At this time, the legs (18) (18) of the flaw detection device (1)) are held substantially perpendicular to the inspected part (24), and the coil winding part (17) (17)
is held in a position approximately parallel to the part to be inspected (24), so
As shown in Fig. 1, above the part to be inspected (24)
) does not exist, and therefore, when observing the inspected portion (24), the field of view is widened and the state of the magnetic particle pattern can be visually observed from directly above.
尚、上記の実施例ではコイル捲回部（１７）と脚部（１
８）との角部（２５）を角ばらして加工したが、本発明
はこれに限定されるわけではなく、第６図の如く角部（
２６）に丸みを付して加工してもよい。In addition, in the above embodiment, the coil winding part (17) and the leg part (1
Although the corner portion (25) between the corner portion (8) and the corner portion (25) was cut apart, the present invention is not limited to this.
26) may be rounded and processed.
会所■前来
本発明に係る探傷装置を使用して鋼構造物の鋼溶接部或
いは鋼材料の表面等の被検査部を磁粉検査すると、被検
査部の上方に握持部が位置することがないので、被検査
部を観察するとき視野が広くなって磁粉模様の状態を真
上から平面的に目視することができる。したがって、被
検査部を１察しやすく、鋼構造物に生じた亀裂、割れ等
の有害な欠陥の見落としがなくなる。■ Previously, when the flaw detection device according to the present invention was used to inspect parts to be inspected such as steel welds of steel structures or the surface of steel materials for magnetic particles, the gripping part could be located above the part to be inspected. Therefore, when observing the part to be inspected, the field of view is widened and the state of the magnetic particle pattern can be visually observed from directly above. Therefore, the part to be inspected can be easily seen, and harmful defects such as cracks and fractures occurring in the steel structure will not be overlooked.
また、本発明に係る探傷装置１ゴコイルｔｉ回部と脚部
とが一体となっているため磁化性能の低下をきたすこと
がなく、又取り扱いが非常に簡単である。In addition, since the go coil ti portion and the leg portion of the flaw detection device 1 according to the present invention are integrated, there is no deterioration in magnetization performance, and handling is very easy.
第１図は本発明に係る探傷装置の平面図、第２図は正面
図、第３図は側面図、第４図は側面一部所面図、第５図
は斜視図、第６図は本発明の他の実施例を示した側面図
である。第７図は従来の探傷装置の平面図、第８図は一
部断面正面図、第９図は側面図である。
（１）−探傷装置、（１２） −鉄芯、（１３） −基
部、（１４） （１４）−第１の部分、（１５）
（１５）−第２の部分、（１６） −握持部、（１７）
（１７）−コイル撞回部、（１８） （１Ｂ）・
・・脚部、（２０）＜２０） −先端部、（２１） −
絶縁材、（２４）・−・被検査部。
第４−
第５ｖＡ
＠７ａ！＋
第８０
１）９図
□″Fig. 1 is a plan view of a flaw detection device according to the present invention, Fig. 2 is a front view, Fig. 3 is a side view, Fig. 4 is a partial side view, Fig. 5 is a perspective view, and Fig. 6 is a FIG. 7 is a side view showing another embodiment of the present invention. FIG. 7 is a plan view of a conventional flaw detection device, FIG. 8 is a partially sectional front view, and FIG. 9 is a side view. (1) - Flaw detection device, (12) - Iron core, (13) - Base, (14) (14) - First part, (15)
(15) - second part, (16) - gripping part, (17)
(17) - Coil twisting part, (18) (1B)・
・・Legs, (20)<20) - Tip, (21) -
Insulating material, (24) --- inspected part. 4th-5th vA @7a! + No. 80 1) Figure 9 □″
Claims (1)
方向に平行に伸びる第１の部分と、上記第１の部分の先
端からこれと直行する方向に平行に伸びる第２の部分と
で構成し、上記の基部を握持部とし、第１の部分或いは
第２の部分のいずれか一方をコイル捲回部とし、かつ第
２の部分を脚部とすると共に、上記第２の部分の先端部
を露出させた状態で全体を絶縁材で被覆したことを特徴
とする交流携帯型極間磁粉探傷装置。(1) The iron core has a base, a first part extending in parallel from both ends of the base in a direction perpendicular to the base, and a second part extending in parallel in a direction perpendicular to the first part from the tip of the first part. The base is a grip part, either the first part or the second part is a coil winding part, the second part is a leg part, and the second part is a grip part. An AC portable interpolar magnetic particle flaw detection device characterized in that the tip of the part is exposed and the entire part is covered with an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13862984A JPS6117953A (en) | 1984-07-04 | 1984-07-04 | Ac portable flaw detector of interpole magnetic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13862984A JPS6117953A (en) | 1984-07-04 | 1984-07-04 | Ac portable flaw detector of interpole magnetic powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6117953A true JPS6117953A (en) | 1986-01-25 |
Family
ID=15226521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13862984A Pending JPS6117953A (en) | 1984-07-04 | 1984-07-04 | Ac portable flaw detector of interpole magnetic powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6117953A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02142422U (en) * | 1989-04-28 | 1990-12-03 | ||
| JPH05232087A (en) * | 1992-02-21 | 1993-09-07 | Nkk Corp | Magnetic damage detecting device |
| JPH07209254A (en) * | 1994-01-18 | 1995-08-11 | Hihakai Kensa Kk | Interpolar magnetic particle inspection system |
| JP2011107045A (en) * | 2009-11-19 | 2011-06-02 | Osaka Gas Co Ltd | Magnetic flaw detector |
| JP2011107046A (en) * | 2009-11-19 | 2011-06-02 | Osaka Gas Co Ltd | Magnetic flaw detector |
| CN109696470A (en) * | 2018-08-20 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | A kind of universal contact of non-destructive testing magnaflux |
-
1984
- 1984-07-04 JP JP13862984A patent/JPS6117953A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02142422U (en) * | 1989-04-28 | 1990-12-03 | ||
| JPH05232087A (en) * | 1992-02-21 | 1993-09-07 | Nkk Corp | Magnetic damage detecting device |
| JPH07209254A (en) * | 1994-01-18 | 1995-08-11 | Hihakai Kensa Kk | Interpolar magnetic particle inspection system |
| JP2011107045A (en) * | 2009-11-19 | 2011-06-02 | Osaka Gas Co Ltd | Magnetic flaw detector |
| JP2011107046A (en) * | 2009-11-19 | 2011-06-02 | Osaka Gas Co Ltd | Magnetic flaw detector |
| CN109696470A (en) * | 2018-08-20 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | A kind of universal contact of non-destructive testing magnaflux |
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