Jfe Steel Corporation

Yuhei Iwami

Hirokazu Kobayashi

Yuichi Ohashi

Masanori Hoshino

Shuhei Narita

Satoki Yasuhara

Provided is a device for correcting meandering of a strip material capable of correcting meandering caused in the strip material and conducting stable conveyance even when the meandering amount is small. The device for correcting meandering in a non-contact conveyance of a strip material that supports and conveys the continuously travelling strip material at a non-contact state by floating the strip material using a group of one or more floaters arranged in series, is characterized in that a gas nozzle for jetting a gas to a lower surface of the strip material is disposed in at least one section between the most upstream floater among the floater group and a conveyance roll located immediately upstream of the floater, between adjacent two floaters and between the most downstream floater among the floater group and a conveyance roll located immediately downstream of the floater as a mechanism for imparting tilting to the strip material to operate the tilting of the strip material in the widthwise direction above the floater.

Device for correcting meandering in non-contact conveyance for strip material

In a method and a device for correcting meandering of a strip material in an apparatus that performs conveyance of the strip material at a non-contact state by floating a continuously traveling strip material by a floater group, the strip material is tilted by forcibly changing a height position in the widthwise direction of the strip material in at least one of a zone between the most upstream floater in the floater group and a conveyance roll located immediately upstream of such a floater, a zone between two adjacent floaters, and a zone between the most downstream floater in the floater group and a conveyance roll located immediately downstream of such a floater, whereby the height position in the widthwise direction of the strip material above the floater is changed and a static pressure applied to the strip material above the floater is changed to correct meandering thereof.

Method and device for correcting meandering in non-contact conveying apparatus for strip material

Adhesion of particles having a large particle size contained in the slurry to a surface of a strip member is suppressed. A slurry application method includes: spraying a slurry from a nozzle onto one or both of a traveling strip member and a roll; and applying the slurry to a surface of the strip member by pressing the roll against the surface of the strip member, wherein a spray angle &#x3b8; is set to 0&#xb0; or more and 50&#xb0; or less, a distance d in a conveyance direction of the strip member between an intersection point Pand a rotation center Pof the roll is 100 mm or less, and a height h from the surface of the strip member to the intersection point Pis &#xbd; or less of a diameter of the roll.

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Tokyo, Japan

Yuhei Iwami