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Roller
The 4-high reversible finishing mill with the maximum load
of 7000 tons minimizes internal defects even in extremely
thick plates. Automatic gauge control and shape control systems
reduce not only the thickness deviation of plates but also
improve the flatness. |
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PILAC System (TMCP)
PILAC (Posco In-line Accelerated Cooling) system enables the
production of high strength steel without heat treatment through
rolling and accelerated cooling. Using the mist cooling method
with suction type, the PILAC system has a high cooling capacity
and is able to maintain uniform temperature gradient in the
widthwise direction. This leads to a reduction of plate quality
deviation. |
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Leveler
The hot leveler is used to make superior quality flat plates
by eliminating residual stress left on rolled plates. |
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Shearer
After passing through the cooler, the plates undergo a dimensional
accuracy inspection and then cut into appropriate width and
length according to plate grade and thickness using either
mechanical shearing machine or flame planner. To obtain a
higher degree of dimensional accuracy in products, production
conditions are determined by such factors as the air knife
gap and the nozzle size of gas torch. |
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Heat Treatment
To attain the plate structure demanded by customers, plates
undergo heat treatment after having the scale removed by shot
blasters. The heat treating facilities are of a non-oxidizing
radiation tube type, which produces scale-free heat-treated
plates. |
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Ultra Sonic Tester
Ultrasonic tester checks for blow holes, pipes, and laminations
and other internal defects. The tests are performed to guarantee
the internal quality of plates demanded by customers. |
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