GB833884A - Magnetic surface testing - Google Patents
Magnetic surface testingInfo
- Publication number
- GB833884A GB833884A GB2427957A GB2427957A GB833884A GB 833884 A GB833884 A GB 833884A GB 2427957 A GB2427957 A GB 2427957A GB 2427957 A GB2427957 A GB 2427957A GB 833884 A GB833884 A GB 833884A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- oxide
- lightreflecting
- july
- solution
- 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)
- Surface Treatment Of Optical Elements (AREA)
- Laminated Bodies (AREA)
Abstract
833,884. Magnetic tests. ROLLS-ROYCE Ltd. July 31, 1958 [July 31, 1957], No. 24279/57. Class 37. During crack testing by means of magnetic oxide powder which may be suspended in white spirits or paraffin, to render the oxide clearly visible against a dull surface, the surface is first covered with a film of non-metallic material of a colour contrasting with that of the oxide. The film is preferably light in colour and lightreflecting ; a copolymer of polyvinyl acetate and polyvinyl chloride in solution in ketone and hydrocarbon solvents together with some mineral acid is suggested. To this solution may be added titanium oxide to form a white lightreflecting film. Another suitable material is cellulose acetate butyrate incorporating titanium oxide. The film may be applied by brush, spray or aerosol.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2427957A GB833884A (en) | 1957-07-31 | 1957-07-31 | Magnetic surface testing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2427957A GB833884A (en) | 1957-07-31 | 1957-07-31 | Magnetic surface testing |
Publications (1)
Publication Number | Publication Date |
---|---|
GB833884A true GB833884A (en) | 1960-05-04 |
Family
ID=10209220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2427957A Expired GB833884A (en) | 1957-07-31 | 1957-07-31 | Magnetic surface testing |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB833884A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3344345A (en) * | 1966-02-03 | 1967-09-26 | North American Aviation Inc | Resolving method comprising printing caused by impingement of a paramagnetic particulate |
US3345564A (en) * | 1962-10-06 | 1967-10-03 | Toyota Motors Company Ltd | Method for non-destructive detection and observation of defects of ferromagnetic steels utilizing an aqueous ferromagnetic solution |
US3855526A (en) * | 1973-05-16 | 1974-12-17 | Rockwell International Corp | Method of magnetic particle testing using strippable coatings |
US4321534A (en) * | 1980-03-12 | 1982-03-23 | Magnaflux Corporation | Magnetic particle testing procedure involving pre-coating with a hydrophobic coating |
GB2119518A (en) * | 1982-03-24 | 1983-11-16 | George Victor Crowe | Flaw detection method |
-
1957
- 1957-07-31 GB GB2427957A patent/GB833884A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3345564A (en) * | 1962-10-06 | 1967-10-03 | Toyota Motors Company Ltd | Method for non-destructive detection and observation of defects of ferromagnetic steels utilizing an aqueous ferromagnetic solution |
US3344345A (en) * | 1966-02-03 | 1967-09-26 | North American Aviation Inc | Resolving method comprising printing caused by impingement of a paramagnetic particulate |
US3855526A (en) * | 1973-05-16 | 1974-12-17 | Rockwell International Corp | Method of magnetic particle testing using strippable coatings |
US4321534A (en) * | 1980-03-12 | 1982-03-23 | Magnaflux Corporation | Magnetic particle testing procedure involving pre-coating with a hydrophobic coating |
GB2119518A (en) * | 1982-03-24 | 1983-11-16 | George Victor Crowe | Flaw detection method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB833884A (en) | Magnetic surface testing | |
CA530908A (en) | Knots and methods of forming the same | |
AU117073B2 (en) | Improvements in or relating to coated materials and articles | |
AU207691B2 (en) | Improvements in or relating to reflective pigments and coating compositions | |
CA545631A (en) | Substituted disulfones and method of preparing the same | |
AU123715B2 (en) | Improvements in or relating to compositions containing polyvinyl acetal resins and to fabrics coated with such compositions | |
AU563042A (en) | Improvements in or relating to coated materials and articles | |
AU115698B2 (en) | Improvements in or relating to density detecting and/or fuel proportioning devices | |
AU249426B2 (en) | Method of detecting liquids suspended in other liquids | |
AU1893256A (en) | Improvements in or relating to filaments and method of making the same | |
CA558911A (en) | Process for improving materials in the form of fiber or film | |
CA509140A (en) | Visual alarm for aircraft indicators and the like | |
AU1700356A (en) | Improvements in or relating to reflective pigments and coating compositions | |
AU117634B2 (en) | Improvements in or relating to coated fabrics or other materials | |
AU218032B2 (en) | m "CORROSION INHIBITING OLEO-RESINOUS COMPOSITION AND METHOD FOR ITS USE | |
CA562853A (en) | Radium coated articles and method of making the same | |
CA577735A (en) | Method of flameproofing fibers and the resulting products | |
AU216792B2 (en) | Marine structures and method of inhibiting the adherence of barnacles thereto | |
AU6523460A (en) | Method of detecting liquids suspended in other liquids | |
AU215018B2 (en) | Improvements in or relating tothe ultrasonic testing of materials | |
AU212836B2 (en) | Improvements in or relating tothe ultrasonic testing of materials | |
AU204521B2 (en) | Method of and solutions forthe substantially colourless passivation of surfaces of articles of, or plated with, zinc and its alloys | |
CA595147A (en) | Zirconium clad steel and method of manufacturing the same | |
CA503404A (en) | Aqueous dispersions and methods of preparing the same | |
CA531713A (en) | Cycloalkanes and the method of preparation |