Patent classifications
B21C47/24
FLAT WIRE COIL WIRE GUIDE WITH TWISTED CONTRACTION
A wire guide includes a solid core mandrel that is initially received in a flat wire coil that has a rest inner diameter that is greater than a uniform diameter of the solid core mandrel. The flat wire of the flat wire coil is in tension between a proximal location and a distal location so that the flat wire coil has a reduced inner diameter that is smaller than its rest inner diameter. The tension in the flat wire is introduced by torquing the mandrel relative to the flat wire coil as part of attaching the coil to the mandrel.
Method of joining strip-shaped sheets
A method of joining strip-shaped sheets includes a support step of placing a support member in contact with a reverse feed direction end of a strip-shaped sheet fed to a pressing machine and a feed direction end of a new strip-shaped sheet, and a joining step of joining the new strip-shaped sheet to the strip-shaped sheet by attaching a tape on the reverse feed direction end of the strip-shaped sheet and the feed direction end of the new strip-shaped sheet, wherein in the joining step, the tape is attached from a side opposite the support member with the support member placed in contact with the reverse feed direction end of the strip-shaped sheet and the feed direction end of the new strip-shaped sheet. The problem of the variation in welding quality encountered when welding thin and wide strip-shaped sheets together is resolved and the strip-shaped sheet is fed smoothly.
Device for winding strip-shaped material
A device for winding strip-shaped material onto at least one reel (10) comprises a support arm (11) that is movable relative to the machine frame (12) and has at least one horizontal reel shaft (13) for holding the reel (10). The reel shaft (13) holding the reel is made to rotate by at least one rotary drive (14). A release mechanism is provided for releasing the reel (10) when the support arm (11) moves relative to the machine frame (12). In order to design a device that is better adapted to the specificities of rigid materials and to greater weights of the strip-shaped material, the support arm (11) supporting the reel when the strip-shaped material is wound onto the reel simultaneously forms the release mechanism, and a linear movement mechanism (15) is provided for moving the support arm (11) parallel to the reel shaft (13) and transversely to a strip feeding mechanism (16) in order for the reel to be released.
PIPE COIL SKID WITH SIDE RAILS AND METHOD OF USE
A pipe coil skid includes a plurality of beams affixably connected together to form a rectangular shaped base and a platform disposed within the base. The platform has a concave upward shape on its upward facing side when the skid sits on a horizontal surface, such that a coil of pipe positioned upon the platform contacts the platform within the base. The pipe coil skid also includes a first side rail coupled to at least one of the plurality of beams. The first side rail is configured to block movement of the coil of pipe beyond a boundary of the rectangular shaped base.
Reliable handling of sleeves or metal coils of small external diameter on a coiler mandrel
The invention relates to a coil-transporting carriage with adjustable retaining arms and to a method for the reliable handling of metal coils of small external diameter, or of sleeves, on a coiler mandrel. The coil-transporting carriage has a vertically displaceable coil saddle for accommodating a coil or a sleeve, also has two retaining arms for stabilizing the coil or the sleeve, the retaining arms being arranged opposite one another on the coil saddle and being pivotable by means of rotary drives, and additionally has a second drive unit for moving the coil-transporting carriage. For pulling off from a coiler mandrel, the coil saddle is positioned against a coil located on the coiler mandrel and the retaining arms are pivoted onto the coil. For pushing onto a coiler mandrel, first a sleeve is placed on the coil saddle of the coil-transporting carriage and is thereby guided by the retaining arms.
Reliable handling of sleeves or metal coils of small external diameter on a coiler mandrel
The invention relates to a coil-transporting carriage with adjustable retaining arms and to a method for the reliable handling of metal coils of small external diameter, or of sleeves, on a coiler mandrel. The coil-transporting carriage has a vertically displaceable coil saddle for accommodating a coil or a sleeve, also has two retaining arms for stabilizing the coil or the sleeve, the retaining arms being arranged opposite one another on the coil saddle and being pivotable by means of rotary drives, and additionally has a second drive unit for moving the coil-transporting carriage. For pulling off from a coiler mandrel, the coil saddle is positioned against a coil located on the coiler mandrel and the retaining arms are pivoted onto the coil. For pushing onto a coiler mandrel, first a sleeve is placed on the coil saddle of the coil-transporting carriage and is thereby guided by the retaining arms.
Method for mitigating the effects of coil collapse on hot strip mill coils
A method for mitigating the effects of coil collapse on hot strip mill coils. A hot strip coil is removed from the mandrel/downcoiler and pre-sagged to create an initial sag by allowing gravity cause the coil to sag in a first specific direction for a first period of time. Then, without coil eye support to limit sagging, the direction of the sag caused by the force of gravity is modified to a direction perpendicular to the first specific direction and gravity is allowed to sag said coil for a second period of time. The first period of time and the second period of time are chosen such that the initial sag created during the first period of time is substantially mitigated by the perpendicular sag during the second period of time. The hot strip coil being cooled enough by the end of the second period of time such that the rate of sagging of the hot strip coil has become negligible.
Method for mitigating the effects of coil collapse on hot strip mill coils
A method for mitigating the effects of coil collapse on hot strip mill coils. A hot strip coil is removed from the mandrel/downcoiler and pre-sagged to create an initial sag by allowing gravity cause the coil to sag in a first specific direction for a first period of time. Then, without coil eye support to limit sagging, the direction of the sag caused by the force of gravity is modified to a direction perpendicular to the first specific direction and gravity is allowed to sag said coil for a second period of time. The first period of time and the second period of time are chosen such that the initial sag created during the first period of time is substantially mitigated by the perpendicular sag during the second period of time. The hot strip coil being cooled enough by the end of the second period of time such that the rate of sagging of the hot strip coil has become negligible.
HALF-MOON LIFTING DEVICE
A pipe coil lifting device includes a superstructure with a central longitudinal member and at least two supports attached to opposite sides of the central longitudinal member, with two channels at the outside long-edges of the superstructure attached to the supports, with a convex upper surface attached to the supports of the superstructure.
HALF-MOON LIFTING DEVICE
A pipe coil lifting device includes a superstructure with a central longitudinal member and at least two supports attached to opposite sides of the central longitudinal member, with two channels at the outside long-edges of the superstructure attached to the supports, with a convex upper surface attached to the supports of the superstructure.