Quarter Hard Temper
Cold Rolled steel produced to a
Rockwell hardness range of 60 to 75 on the B scale. Product of this
temper is intended for
limited bending and cold forming and can be bent 90 degrees in the
rolling direction and 180 degrees across the rolling direction over
its own thickness.
Quench Hardening
A process of hardening a ferrous
alloy of suitable composition by heating within
or above the transformation range and cooling at a rate sufficient to
increase the hardness substantially. The process usually involves the
formation of martensite.
Quench Tank
1.
Tank of water used to quickly cool the strip before it reaches the
delivery end of the line. 2. The water bath which is used to
cool the steel strip after it has been annealed on CA line or reflowed
on the Tin plater.
Quencher Water
Water that keeps boiler duct work
cool.
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