| Everything You Always Wanted to Know About Steel. . . But Were Afraid to Ask Copyright Michelle Applebaum Research, Inc 2003-2006 All rights reserved. June 2006 |
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Q
Q-BOP
Modified Basic Oxygen Furnace in which the oxygen and other gases are blown in from the
bottom, rather than from the top. While the Q-BOP stirs the metal bath more vigorously, allowing
for faster processing, the design produces essentially the same steel grades as the top-
blowing basic oxygen furnace. Today’s state-of-the-art furnace design combines the previous
technologies: 60% of the oxygen is blown from above, with the rest blown through the bottom of
the vessel.
****
QUALIFICATION TRIALS
The testing required for a new process adopted to make certain grades of steel with exacting
end uses. In order for the process to become qualified, the steel made by the process must be
tested.
****
QUENCH HARDENING 1
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.
****
Source: Weirton Steel Glossary
Source: Dofasco Glossary of Terms
Source: Reliance Steel 10-K
Source: BlueScope Steel Glossary of Terms
Source: Allegheny Technologies 10-K
Source: Alcoa 10-K
Source: Alcan 10-K
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Q
Q-BOP
Modified Basic Oxygen Furnace in which the oxygen and other gases are blown in from the
bottom, rather than from the top. While the Q-BOP stirs the metal bath more vigorously, allowing
for faster processing, the design produces essentially the same steel grades as the top-
blowing basic oxygen furnace. Today’s state-of-the-art furnace design combines the previous
technologies: 60% of the oxygen is blown from above, with the rest blown through the bottom of
the vessel.
****
QUALIFICATION TRIALS
The testing required for a new process adopted to make certain grades of steel with exacting
end uses. In order for the process to become qualified, the steel made by the process must be
tested.
****
QUENCH HARDENING 1
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.
****
Source: Weirton Steel Glossary
Source: Dofasco Glossary of Terms
Source: Reliance Steel 10-K
Source: BlueScope Steel Glossary of Terms
Source: Allegheny Technologies 10-K
Source: Alcoa 10-K
Source: Alcan 10-K
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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