GB878751A - Improved method of detecting flaws in articles - Google Patents
Improved method of detecting flaws in articlesInfo
- Publication number
- GB878751A GB878751A GB564759A GB564759A GB878751A GB 878751 A GB878751 A GB 878751A GB 564759 A GB564759 A GB 564759A GB 564759 A GB564759 A GB 564759A GB 878751 A GB878751 A GB 878751A
- Authority
- GB
- United Kingdom
- Prior art keywords
- penetrant
- flaws
- particulate material
- powder
- liquid
- 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
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
878,751. Detecting surface flaws. ROLLSROYCE Ltd. Feb. 10, 1960 [Feb. 18, 1959; July 8, 1959], Nos. 5647/59 and 23545/59. Class 106 (2). A method of detecting flaws, for example, cracks in a liquid impermeable surface of a body comprises applying a liquid penetrant, for example, a fluorescent liquid penetrant to the surface so that it penetrates into the flaws, employing a finely divided particulate material to remove the penetrant from the unflawed parts of the surface while leaving the penetrant in the flaws and while leaving the surface substantially unimpaired in quality and dimensions, and rendering visible the penetrant which has been left in the flaws. The particulate material may comprise powdered plum stones or powdered walnut shells which may be blown on to the surface to remove the penetrant, or alternatively the penetrant may be removed by barrelling the body in a water-saturated aggregate comprising a mixture of the particulate material and granite or aloxite barrelling chips. The particulate material is then removed by blowing air on to the body or by a cold water wash after which the body is dipped in hot water and dried. The body is then submerged for a period in a powder, for example, silica or talc, which is adapted to absorb or adsorb the liquid penetrant in the flaw. The surplus powder having been removed the powder clearly indicates the flaw or flaws when viewed in a dark room under ultra-violet light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB564759A GB878751A (en) | 1959-02-18 | 1959-02-18 | Improved method of detecting flaws in articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB564759A GB878751A (en) | 1959-02-18 | 1959-02-18 | Improved method of detecting flaws in articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB878751A true GB878751A (en) | 1961-10-04 |
Family
ID=9800002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB564759A Expired GB878751A (en) | 1959-02-18 | 1959-02-18 | Improved method of detecting flaws in articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB878751A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3422670A (en) * | 1965-06-16 | 1969-01-21 | James R Alburger | Cleaning process and compositions for post-emulsifier inspection penetrants |
| US4665738A (en) * | 1985-09-12 | 1987-05-19 | United Technologies Automotive, Inc. | Accelerated solvent resistivity test |
| CN111089772A (en) * | 2020-02-05 | 2020-05-01 | 山东科技大学 | Method for preparing rock test piece containing non-filling type internal defects |
| EP4253947A1 (en) * | 2022-03-29 | 2023-10-04 | MTU Aero Engines AG | Method for testing a component |
-
1959
- 1959-02-18 GB GB564759A patent/GB878751A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3422670A (en) * | 1965-06-16 | 1969-01-21 | James R Alburger | Cleaning process and compositions for post-emulsifier inspection penetrants |
| US4665738A (en) * | 1985-09-12 | 1987-05-19 | United Technologies Automotive, Inc. | Accelerated solvent resistivity test |
| CN111089772A (en) * | 2020-02-05 | 2020-05-01 | 山东科技大学 | Method for preparing rock test piece containing non-filling type internal defects |
| EP4253947A1 (en) * | 2022-03-29 | 2023-10-04 | MTU Aero Engines AG | Method for testing a component |
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