JPS5618754A - Defect-probing agent - Google Patents
Defect-probing agentInfo
- Publication number
- JPS5618754A JPS5618754A JP9399779A JP9399779A JPS5618754A JP S5618754 A JPS5618754 A JP S5618754A JP 9399779 A JP9399779 A JP 9399779A JP 9399779 A JP9399779 A JP 9399779A JP S5618754 A JPS5618754 A JP S5618754A
- Authority
- JP
- Japan
- Prior art keywords
- defect
- agent
- probing
- magnetic powder
- probed
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
PURPOSE: To provide a defect-probing agent capable of a ready and clear defect- probing as well as recording by adding and mixing a malleability adding agent and coloring agent to a proper quantity of magnetic powder, a required volume of solvent and film forming compound and brushing this on the object to be probed.
CONSTITUTION: For probing the defect parts of iron and steel a magnetic fine powdery substance (magnetic powder) having a high magnetic permeability, e.g. pure ion having a grain size of less than 100 mesh is used, and to this a film forming material, e.g. rubber, and a required quantity of an extending agent are added, and additionally a white or yellow coloring agent and a surface-active and malleable additive, e.g. butyric acid are added and mixed togther to form a liquid defect- probing agent. The agent is brushed or sprayed on the whole surface of the object to be probed. After having dried, the solidified film on the painted surface is peeled off. This permits the magnetic powder existing on a defect part to be distinguished with the naked eye, accordingly, the defect part, its configuration and dimension are made clear.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9399779A JPS5618754A (en) | 1979-07-24 | 1979-07-24 | Defect-probing agent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9399779A JPS5618754A (en) | 1979-07-24 | 1979-07-24 | Defect-probing agent |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5618754A true JPS5618754A (en) | 1981-02-21 |
Family
ID=14098034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9399779A Pending JPS5618754A (en) | 1979-07-24 | 1979-07-24 | Defect-probing agent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5618754A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61193191U (en) * | 1985-05-24 | 1986-12-01 |
-
1979
- 1979-07-24 JP JP9399779A patent/JPS5618754A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61193191U (en) * | 1985-05-24 | 1986-12-01 | ||
JPH0324708Y2 (en) * | 1985-05-24 | 1991-05-29 |
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