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What will happen when the excess surface penetrant of a solvent removable penetrant is removed by means of solvent sprayed directly onto the surface of a part?

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Question ajoutée par Sijin Kalathil CRPEP certified category C Mechanical Engineer , QA QC Inspector Mechanical , Delta Construction W. L. L
Date de publication: 2016/04/15

The penetrant that occupied surface and subsurface of the test material where spray out.

When the developer is sprayed due to lack of penerant the capillary action not take place. It tends to miss lot discontinue in the testing material.

Majed  Hawsawi
par Majed Hawsawi , HSE Inspector , Aircraft Accessories Components company

The penetrant will remove  with solvent and cannot find the cracks.

Utilisateur supprimé
par Utilisateur supprimé

Liquid penetrant  test is used for finding surface defect like open crack,surface porosity etc...so if we remove the penetrant by direct spraying of solvent instead of using a cotton then during application of development the chances of missing the defect will be more.

Mohamed Chenini
par Mohamed Chenini , QC welding inspector , STROC CREATIVE CONTRACTOR

Solvent Removable, is used primarily for inspecting small localized areas. This method requires hand wiping the surface with a cloth moistened with the solvent remover, and is, therefore, too labor intensive for most production situations.

Ainur Istayev
par Ainur Istayev , Deputy QAQC Manager/Lead Welding engineer , Gate Insaat Taahut ve Ticaret

it may remove intruded amount of penetrant in the test surface due to liquid cans are pressurized 

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