JPH044270U - - Google Patents
Info
- Publication number
- JPH044270U JPH044270U JP4458190U JP4458190U JPH044270U JP H044270 U JPH044270 U JP H044270U JP 4458190 U JP4458190 U JP 4458190U JP 4458190 U JP4458190 U JP 4458190U JP H044270 U JPH044270 U JP H044270U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- magnetization
- flaw detection
- eddy current
- magnetic metal
- 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
- 230000005415 magnetization Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
第１図は円筒形コイルにおけるコイル長さと平
均コイル径の比、すなわちＬ／Ｄとコイル中心に
おける軸方向磁場の強さの関係を示す図、第２図
はこの考案の一実施例を示す渦流探傷用直流磁化
装置の主要部の縦断側面図である。
図中、１……円筒形コイル群、２……軟磁性金
属製ハウジング、３……非磁性金属管、４……冷
却液、５……冷却液注入口、６……冷却液排出口
。
Figure 1 is a diagram showing the relationship between the ratio of the coil length to the average coil diameter, that is, L/D, and the strength of the axial magnetic field at the center of the coil in a cylindrical coil, and Figure 2 is a vortex flow diagram showing an example of this invention. FIG. 2 is a longitudinal sectional side view of the main parts of the DC magnetization device for flaw detection. In the figure, 1... cylindrical coil group, 2... soft magnetic metal housing, 3... non-magnetic metal tube, 4... coolant, 5... coolant inlet, 6... coolant outlet.
Claims (1)
行う渦流探傷用直流磁化装置において、同芯に配
置された複数個の複層巻きの円筒形コイル群の各
コイル間に、各々間隔を設け、コイルの長さと該
コイル群の平均コイル径との比が１と２の間にな
るようにし、該コイル群を覆う軟磁性金属製ハウ
ジングと軟磁性金属製穴開き円板状側板からなる
ハウジングの側板中心穴間に非磁性金属管を通し
、これに取付けた該コイル群を密閉し、液体冷却
を施し、空芯時におけるコイル中心線中央部の軸
方向磁場の強さが３００エレステツド以上になる
ように構成したことを特徴とする渦流探傷用直流
磁化装置。 In a DC magnetization device for eddy current flaw detection that performs eddy current flaw detection by DC magnetization using a DC magnetization coil, intervals are provided between each coil of a group of multiple multi-layered cylindrical coils arranged concentrically. The center of the side plate of the housing is configured such that the ratio between the length and the average coil diameter of the coil group is between 1 and 2, and the housing is made of a soft magnetic metal housing that covers the coil group and a perforated disc-shaped side plate made of soft magnetic metal. A non-magnetic metal tube is passed between the holes, and the coil group attached to the tube is sealed and liquid-cooled so that the strength of the axial magnetic field at the center of the coil center line when the core is air-core is 300 degrees or more. A DC magnetization device for eddy current flaw detection characterized by the following configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4458190U JPH0729490Y2 (en) | 1990-04-27 | 1990-04-27 | DC magnetizer for eddy current flaw detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4458190U JPH0729490Y2 (en) | 1990-04-27 | 1990-04-27 | DC magnetizer for eddy current flaw detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH044270U true JPH044270U (en) | 1992-01-16 |
| JPH0729490Y2 JPH0729490Y2 (en) | 1995-07-05 |
Family
ID=31558012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4458190U Expired - Lifetime JPH0729490Y2 (en) | 1990-04-27 | 1990-04-27 | DC magnetizer for eddy current flaw detection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729490Y2 (en) |
-
1990
- 1990-04-27 JP JP4458190U patent/JPH0729490Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729490Y2 (en) | 1995-07-05 |
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