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Title:
BILLET AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2008229659
Kind Code:
A
Abstract:

To provide a billet obtained by blooming rolling, which has dimensions of a cross section of a product which are larger than the minimum dimensions of the cross section of a cast slab of a base stock and a method of manufacturing it.

After forging a continuously cast slab 1 in the direction of the long side of itself, the slab is made into the billet 3 having a diameter larger than the length of a short side of the continuously cast slab by performing blooming rolling. It is preferable that the dimensions of the continuously cast slab satisfy the formula: A1.44(d3/C2). Where, A is the length (mm) of the long side of the cast slab, C is the length (mm) of the short side of the cast slab and d is the diameter (mm) of the billet.


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Inventors:
HORIE MASAYUKI
YAMASHITA MICHIO
YUASA TAKENORI
YAMAUCHI AKIRA
SAKURAI TOMOYASU
Application Number:
JP2007072646A
Publication Date:
October 02, 2008
Filing Date:
March 20, 2007
Export Citation:
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Assignee:
JFE STEEL KK
International Classes:
B21B1/02
Domestic Patent References:
JPS58196101A1983-11-15
JP2006043743A2006-02-16
Attorney, Agent or Firm:
Eiichi Kobayashi



 
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