GB585294A - A fluid for use in the magnetic detection of cracks in iron or steel parts - Google Patents
A fluid for use in the magnetic detection of cracks in iron or steel partsInfo
- Publication number
- GB585294A GB585294A GB385545A GB385545A GB585294A GB 585294 A GB585294 A GB 585294A GB 385545 A GB385545 A GB 385545A GB 385545 A GB385545 A GB 385545A GB 585294 A GB585294 A GB 585294A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- per cent
- precipitate
- fluid
- cracks
- 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.)
- Expired
Links
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
Landscapes
- 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)
- Lubricants (AREA)
- Soft Magnetic Materials (AREA)
Abstract
A mixture of a suitable liquid (e.g., alcohol or paraffin) and p finely divide iron oxide has the oxide produced by partial oxidation and dehydration, by hot air, of the precipitate of a fibrous salt and an alkali solution. Ferrous sulphate and sodium carbonate are suitable materials for the production of the precipitate which may be mixed after reduction &c., with the suitable liquid in a wide range of proportions by weight. The main constituents of the oxide are ferric oxide 73 per cent. and ferrous oxide 19 per cent. A small percentage, e.g., 0.5 per cent. of a suitable wetting agent (e.g., linseed oil or the mixed fatty acid of wool grease) may be added to the final fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB385545A GB585294A (en) | 1945-02-15 | 1945-02-15 | A fluid for use in the magnetic detection of cracks in iron or steel parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB385545A GB585294A (en) | 1945-02-15 | 1945-02-15 | A fluid for use in the magnetic detection of cracks in iron or steel parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB585294A true GB585294A (en) | 1947-02-04 |
Family
ID=9766183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB385545A Expired GB585294A (en) | 1945-02-15 | 1945-02-15 | A fluid for use in the magnetic detection of cracks in iron or steel parts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB585294A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4701275A (en) * | 1986-09-17 | 1987-10-20 | Circle Chemical Company, Inc. | Testing system |
-
1945
- 1945-02-15 GB GB385545A patent/GB585294A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4701275A (en) * | 1986-09-17 | 1987-10-20 | Circle Chemical Company, Inc. | Testing system |
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