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| The liquid penetrant inspection area enables complete surface inspection of castings with the ability to detect surface breaking flaws such as cracks, laps, porosity and through wall defects. |
| The principles of liquid penetrant testing is that the liquid penetrant is drawn into any surface breaking discontinuity by capillary action, after a suitable dwell time all excess penetrant is subsequently removed and developer, typically a dry powder is applied to the casting surface to draw out the penetrant to produce a surface indication. The indications produced are larger than the actual flaw size and therefore are more easily visible. |
| Fluorescent penetrants are used for maximum flaw sensitivity, and at Maycast-Nokes the majority of testing is carried out using this method. |
| Experienced technicians carry out the testing under very strictly controlled conditions and are qualified to major approvals including SNT and PCN. |
| Maycast-Nokes NADCAP approved radiographic and liquid penetrant inspection facilities are available for independant sub-contract work. |
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Maycast-Nokes
Precision Engineering Limited, Factory Lane West, Halstead, Essex,
CO9 1EX Telephone: 44 (0) 1787 477021 Facsimile: 44 (0) 1787 474264 E-mail:enquiries@maycast.co.uk |
