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Emulsification (pt)
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
The process of dispersing one liquid in a second immiscible liquid; the largest group of emulsifying agents are soaps, detergents, and other compounds, whose basic structure is a paraffin chain terminating in a polar group.
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Emulsificateur, французский
Emulsification, английский
Emulsification time (pt), английский
- The time allowed for the emulsifier to act on the penetrant before the part is washed, after emulsifier is applied as a separate step.
- Time required for the emulsifying agent to combine with the penetrant. this is critical as insufficient time will result in failure to remove the penetrant and lead to false indications, and too long a time may remove the penetrant from the flaws. emulsification time usually ranges from 30 seconds to 5 minutes.
Immiscible, английский
Incapable of being mixed without separation of phases. water and petroleum oil are immiscible under most conditions, although they can be made miscible with the addition of an emulsifier.
Terminating, английский
Terminating a fiber is accomplished through preparing the fiber for connection to another fiber or device such as a connector. the goal when terminating is to produce a perfect end to the fiber. the end should be cleanly cut, clear and physically connected to the receiving optical device. this can be accomplished through two means; permanently joining the fibers by welding or gluing the ends of the fiber together, or mechanically aligning the fibers and joining them with transparent gel.
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Stereoradiography (rt), английский
The process of finding the position and dimensions of details within a specimen by measurements made on radiographs taken from different directions.
Saponification (pt), английский
The process of converting chemicals into soap; involves the alkaline hydrolysis of a fat or oil, or the neutralization of a fatty acid.
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