A welding process which produces the joining of metals by heating them in a forge and by applying pressure or blows.
Related Terms |
RESTRICTOR
A device for producing a deliberate pressure drop or resistance in a line by reducing the cross-sectional flow area.
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ALKALINE BOIL-OUT
Employed to remove oil and grease deposits from heating surfaces.
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ANNEAL
To soften by heating and allowing to cool slowly.
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SAFETY CONTROL
Device to stop unit, equipment or system if unsafe pressure and/or temperatures and/or dangerous conditions are reached.
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CONTAMINANT CAPACITY
The weight of a specified artificial contaminant that must be added to the influent to produce a given differential pressure across a filter at specified conditions. Used as an indication of relative service life. Also known as Dirt capacity, Dust capacity
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BUBBLE POINT
The differential gas pressure at which the first steady stream of gas bubbles is emitted from a wetted filter element under specified test conditions.
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FILTER ELEMENT
The porous device that performs the actual process of filtration. Also known as Cartridge
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HYDROFINISHING
A process for treating raw extracted base stocks with hydrogen to saturate them for improved stability.
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CLEAN ROOM
A facility or enclosure in which air content and other conditions (such as temperature, humidity, and pressure) are controlled and maintained at a specific level by special facilities and operating processes and by trained personnel.
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ACID ATTACK
Caused by an incomplete flushing after an acid cleaning process of boilers or similar equipment.
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