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What is penetrant testing ?

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Question ajoutée par Ridha SAIDANI , Maintenance Manager , SOMIPHOS / Technical Direction
Date de publication: 2016/04/25
Alexander Acheampong Obeng
par Alexander Acheampong Obeng , Machine operator , Nestle Ghana

Is a widely applied and low cost inspection methods used to locate surface-breaking defects in all non-porous materials. eg. metals, plastic or ceramics.

Simple one of the quality testing method for fiding surface defects.

Muhammed Ezzat
par Muhammed Ezzat , Maintenance Manager , Equipment Development Centre

Dye Penetrand Testing is a test carried out when you suspect the existence of non visible cracks in a Non Pourous material.

The test is carried out as following:

 

1)-Peoperly clean up the suspected part.

2)-A special dye of highly visible color is added to the part and let on for 10-20 minutes. Giving it time to seep in any non visible cracks.

3)-The dye is removed thoroughly from the surface.

4)-A developer is added to the surface of the part, drawing out the dye from any small cracks to form very visble indicators of the existence of cracks in the material.

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