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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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