Method for manufacturing a strip of steel, in particular, a method for manufacturing a strip of steel material for the production of cutting or cutting tools having improved service life

摘要

Method for manufacturing a strip of steel, in particular, an improved method for producing a strip of steel material for producing a cutting tool or a cutting tool having a useful life. The present invention relates to a method of manufacturing a strip of steel, in particular, it relates to a method for manufacturing a strip of steel material for the production of cutting or cutting tools having improved service life, curable steel the press trip is prepared by casting from a melt, and then press trip is rolled to form a hot strip, if necessary, then be annealed is cold-rolled. At this time, the press trip is fabricated in a horizontal strip casting facility, in that case, is fed from the melt supply vessel, on top of the cooled conveyor belt to circulate through the two diverting rolls, under conditions where liquidity has been calmed down, without bending, cast so as to form a press trip in the range of 6~40mm, and then the press trip at least 50% of the deformation degree so as to form a hot strip rolled, cooling rate in the upper and lower surfaces of the press trip is set to be different each to provide eccentric residual solidification