Patent classifications
B21B2015/0014
High speed traversing shear
A trim shear is adapted to trim the front and tail ends of a hot rolled product exiting from a rolling mill along a mill pass line and travelling at either high or low speeds, depending on the size of the product being rolled. The trim shear comprises a trim station having a high speed a set of trim knives configured and arranged to trim the front and tail ends of high speed products, and a different low speed set of trim knives disposed laterally from the high speed set of trim knives and configured and arranged to trim the front and tail ends of low speed products; and the trim station is transversely shifted with respect to the mill pass line to alternatively locate either one or the other of the sets of trim knives in an active position on the mill pass line.
Method and device for producing a metal strip in a continuous casting and rolling process
The invention relates to a method for producing a metal strip (1) in a continuous casting and rolling process, in which a slab is first cast in a casting machine and is then fed to a finishing rolling mill situated downstream in the direction of feed (F) of the strip (1), where it is rolled. According to the invention, in order to enable the recycling of scrap while achieving a compact design, the following steps are performed in the event of a planned or unplanned production interruption in the finishing rolling mill: a) cutting through the strip (1) at a point (4) between the casting machine (2) and the finishing rolling mill by means of a cutting device (5); b) feeding the part of the strip (1) that follows the cut into a strip store (6) by means of a driver (7), the driver (7) being situated downstream of the cutting device (5) in the direction of feed (F); c) cutting through the strip (1) a second time by means of the cutting device (5) and cutting the following part of the strip (1) into pieces by means of the cutting device (5); d) cutting the stored strip section into pieces, preferably of a defined length. The invention further relates to an apparatus for carrying out the method.
METHOD OF MAKING A TANTALUM SPUTTER TARGET AND SPUTTER TARGETS MADE THEREBY
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.
Method of pre-controlling shapes of continuous-casting slab head and tail for reducing head and tail cut amount of hot rolling intermediate slab
A method of pre-controlling the shapes of a continuous-casting slab head and tail for reducing the cut amount of the head and tail of the hot rolling intermediate slab. The continuous-casting slab head and tail, is cut into a shape such that an end surface of the head concaves inwards and the tail projects outwards. The head and tail of a slab is cut in a curve that is symmetric to the center line in width thereof. Arc height, i.e. a maximum value of the concave amount at the head or that of the projection amount at the tail, is controlled within 0 mm-50 mm.
Furnace for heating metal strips, and device and method for producing metal strips by continuous casting and rolling
A furnace for heating metal strips, and to a device and a method for producing metal strips by continuous casting and rolling. The device includes a casting machine, a furnace through which a metal strip can be transported in a conveying direction, a first external cutting apparatus and a second external cutting apparatus, the first external cutting apparatus being upstream of the furnace and the second external cutting apparatus being downstream of the furnace, in the conveying direction of the metal strip, and at least one rolling mill. A first internal cutting apparatus and a second internal cutting apparatus are provided inside the furnace. A segment of the metal strip between said internal cutting apparatuses can be separated by actuating the latter.
ADJUSTING A TARGETED TEMPERATURE PROFILE AT THE STRIP HEAD AND STRIP BASE PRIOR TO CROSS-CUTTING A METAL STRIP
A rolling mill with a cooling zone for cooling and scissors for cross-cutting metal strips, which are preferably made of steel. A method and a device enables metal strips with thicknesses >4 mm and/or metal strips made of high-strength materials to be cross-cut by means of scissors arranged after a production line and a cooling zone. In the method, the metal strip (6) is cooled in the cooling zone (10) to a specified temperature profile in the longitudinal direction of the metal strip (6) such that the metal strip (6) has a higher temperature in the region of the strip head of the trailing metal strip portion (31) and the strip base of the leading metal strip portion (32) than in the upstream and downstream regions.
METHOD FOR MANUFACTURING HOT-ROLLED STEEL SHEET, STEEL SHEET CUTTING LOCATION SETTING DEVICE, STEEL SHEET CUTTING LOCATION SETTING METHOD, AND STEEL SHEET MANUFACTURING METHOD
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.
METAL PLATE, METHOD OF MANUFACTURING METAL PLATE, AND METHOD OF MANUFACTURING MASK BY USING METAL PLATE
A metal plate for manufacturing a deposition mask with reduced variation in dimension of through-holes. 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%.
APPARATUS AND METHOD FOR PRODUCTION OF LONG METAL PRODUCTS
An apparatus (100) and method for the production of elongated metal products such as bars, rods or the like: A rolling mill (10) with at least one rolling stand (5); a casting station (20) with at least a first casting line (2a) and at least a second casting line (2b), each line (2a, 2b) being operable to produce respective elongated intermediate products (b2a, b2b), such as billets; wherein at least the first casting line (2a) is directly aligned with the rolling mill (10), the first casting line (2a) being configured to feed the rolling mill (10) with a fully continuous casting strand or with cast elongated intermediate products; and the second casting line (2b) is not aligned with the rolling mill (10). A bidirectional transfer device (30) for transferring elongated intermediate products (b2b) of the second casting line (2b) alternatively in a first direction from the second casting line (2b) to the first casting line (2a) to align the elongated intermediate product (b2b) with the rolling mill (10) or in a second direction from the at least second casting line (2b) to a cooling bed (40).
BRIDGING AN INTERRUPTION IN PRODUCTION IN A COMBINED CASTING-ROLLING INSTALLATION
A method and a device that bridge an interruption in production in a combined casting-rolling installation to provide a combined casting-rolling installation for producing a hot-rolled finished strip, in which, in the case of an interruption, also thick precursor material having a thickness of >30 mm can be separated in a rapid and reliable manner from the next precursor material.