Side Crack On the Hot Rolled Steel Plate Edge

Lay out the whole process...type metal, temperature and duration of each step of process, type of equipment and any other factors that could effect process...What you have tried and what were the results....as much detail as possible...

Thank you for interest,

Furnace (Coke gas): Pusher type, Walking beam, Vertical edger (max. Draft:25mm9), 4 HI Plate mill (Slab :200x1500xR), Plate(T:6-60, W:1500-3600),

Rolling strategies: Universal rolling (no turn) is chosen when the incoming slab width is less than the outgoing plate width. Normal Rolling:The rolling operation is divided in several phases separated by a product turn, depending on the slab/plate dimension and specific requirement, (Double turn, Single Turn),

GRADE: Carbon Steel plates EH32 / A36, (C:0,12-0,16, Mn:1,4-1,6, Ni:0,25 Nb:0,040) (Deep crack) A36: (C:max.0,12-0,20 Si: max:0,35 Mn: Cr+ Mo+ Ni:max0,70

Trials:

Furnace: pusher type furnace, ramp, stoper etc. fix them up., increas temperatus,

Edger: Roll Change ,

Mill: BUR,WR change, Striper/Wiper, Roll pass line was controlled,

Hot Leveller: Casette change,

Deep crack: pusher furnace, grade EH 32, double turn,

light crack. Walking beam furnace, grade A 36, Single turn or no turn, rerolled plate slab

Pictures?

It was not attached the pictures?

I dont know how i can do that,