A method for manufacturing a hot-rolled steel sheet having a large thickness and a large width, a larger sheet width and a lower temperature can stably be cut at a cutting load equal to that of a conventional steel sheet having a usual sheet thickness, a usual sheet width and a usual temperature. In a rough rolling step, the steel sheet is formed so that the shortest length L (mm) from a concave portion bottom to a convex portion top of the fishtail shape satisfies Equation (1) mentioned below, and an intermediate portion between the concave portion bottom and the convex portion top, defined as a desired cutting location, is cut:
(2X+30)L300(1),
in which X is a maximum deviation (mm) of the cutting location of a crop cutting machine and 0X90.

Methods for making Ta sputter targets and sputter targets made thereby. Ta ingots are compressed along at least two of the x, y, and z dimensions and then cross rolled in at least one of those dimensions. A pair of target blanks is then cut from the cross rolled ingot. The resulting targets have a predominate mix of {100} and {111} textures and have reduced B {100} and B {100} banding factors.

A metal plate for manufacturing a deposition mask with reduced variation in dimension of through-holes; wherein an average value of plate thicknesses of the metal plate in a longitudinal direction is within a 3% range around a predetermined value. When an average value of the plate thicknesses of the metal plate in the longitudinal direction is represented as A, and a value obtained by multiplying a standard deviation of the plate thicknesses of the metal plate in the longitudinal direction by 3 is represented as B, (B/A)100(%) is 5%. When a value obtained by multiplying a standard deviation of the plate thicknesses of the metal plate in the width direction by 3 is represented as C, and a value of a plate thickness of the metal plate at a central portion in the width direction is represented as X, (C/X)100(%) is 3%.

Methods for making Ta sputter targets and sputter targets made thereby. Ta ingots are compressed along at least two of the x, y, and z dimensions and then cross rolled in at least one of those dimensions. A pair of target blanks is then cut from the cross rolled ingot. The resulting targets have a predominate mix of {100} and {111} textures and have reduced B {100} and B {111} banding factors.

The single shear described herein for cutting and simultaneously conveying one or more pairs of rolling wires or bars (1, 2), comprises the following parts: a mobile diverter (5) consisting of at least two channels (6, 7) in each of which a wire or bar (1, 2) slides; at least two pairs of counter-knives (3, 4) each of which acts on a wire or bar (1, 2); a conveying device (9) for conveying the cut segments of wires or bars (1, 2), comprisingat least one pair of mobile elements (20, 20) configured to be independent of each other and synchronized with each other and with the mobile diverter (5), for the separate management of each of said cut sections of wires or bars (1, 2), andat least two pairs of output channels (A1, A2, B1, B2) for conveying the cut segments of wires or bars (1, 2).

A metal plate for manufacturing a deposition mask with reduced variation in dimension of through-holes wherein an average value of plate thicknesses of the metal plate in a longitudinal direction is within a 3% range around a predetermined value. When an average value of the plate thicknesses of the metal plate in the longitudinal direction is represented as A, and a value obtained by multiplying a standard deviation of the plate thicknesses of the metal plate in the longitudinal direction by 3 is represented as B, (B/A)100 (%) is 5%. When a value obtained by multiplying a standard deviation of the plate thicknesses of the metal plate in the width direction by 3 is represented as C, and a value of a plate thickness of the metal plate at a central portion in the width direction is represented as X, (C/X)100(%) is 3%.

The single shear described herein for cutting and simultaneously conveying one or more pairs of rolling wires or bars includes a mobile diverter consisting of at least two channels in each of which a wire or bar slides. The single shear further includes at least two pairs of counter-knives, each of which acts on the wire or bar, and a conveying device for conveying the cut segments of wires or bars. The conveying device may include at least one pair of mobile elements configured to be independent of each other, but configured to be synchronized with each other and with the mobile diverter for the separate management of each of said cut sections of wires or bars. The single shear may finally include at least two pairs of output channels for conveying the cut segments of wires or bars.

A method for producing a metallic strip by continuous casting-rolling, wherein a slab is cast in a casting machine and then sent to a finishing mill located downstream, relative to the transport direction of the strip. In the event that the transport of the slab or strip comes to a complete or substantially complete standstill, the following steps are carried out: (a) cutting through the strip at a first point; (b) cutting through the strip at a second point that is 0.1-5.0 m upstream from the first point; (c) removing the cut-out piece of strip to create a gap in the strip; (d) conveying new strip material into the area of the gap from the area located upstream of the first point; and (e) cutting off pieces of the new strip material conveyed from upstream according to step (d) and removing the pieces from the transport line.

The present invention provides an apparatus for cutting a material, comprising: a frame body installed on a conveying path of a material; a cutting means, mounted on the frame body, for cutting an end portion of the material being conveyed; a laser preheating means for preheating the material by irradiating a laser beam onto the material before being conveyed to the cutting means; and a blocking and reflection means for blocking the laser beams reflected to the cutting means and re-reflecting the laser beam to the material.

A method and a device for producing a metallic strip by continuous casting-rolling, wherein a slab is cast in a casting machine and then sent to a finishing mill located downstream, relative to the transport direction of the strip. In the event that the transport of the slab or strip comes to a complete or substantially complete standstill, the following steps are carried out: (a) cutting through the strip at a first point; (b) cutting through the strip at a second point that is 0.1-5.0 m upstream from the first point; (c) removing the cut-out piece of strip to create a gap in the strip; (d) conveying new strip material into the area of the gap from the area located upstream of the first point; and (e) cutting off pieces of the new strip material conveyed from upstream according to step (d) and removing the pieces from the transport line.