The invention relates to a method for continuously roller-forming and hardening sheet steel in which a sheet steel strip is continuously roller-formed into a profile in a roller-profiling unit, characterized in that the roller-formed profile strand is preheated to a temperature below the austenite starting temperature (Ac.sub.1) and the roller-formed profile strand is then heated across subregions of its cross-section and/or subregions of its length to a temperature above AC.sub.3, with the roller-formed profile strand being acted on with an axial tensile stress at least during the heating of subregions to a temperature >AC.sub.3.

Systems and methods for manufacturing high-strength cladded components such as pressure containing components that may be used in, e.g., oilfield systems to carry corrosive fluids at high pressures. Embodiments of the invention include products and processes in which low carbon HSLA Steel that has a yield strength greater than 70,000 psi is used as a base material from which a component is formed. A corrosion resistant alloy is welded to selected surfaces of the base metal. Because the base material has a low carbon content, welding the corrosion resistant alloy onto the base material does not create significant stresses in the base material and consequently eliminates the need for PWHT to relieve such stresses and eliminates strength degradation that normally results from PWHT. Eliminating PWHT also allows the component to be refurbished and re-cladded multiple times without significantly degrading the yield strength of the component.

There is proposed a method of surface-treating a cast intermetallic component, which is intended primarily to reduce or remove surface porosity from the component. The method includes the steps of: providing a cast intermetallic component; placing the component in an inert atmosphere; focussing a laser beam on a surface of the component; traversing the laser beam over at least a region of said surface while the component is in said inert atmosphere; and controlling the laser beam during said traversing step so as to locally melt the intermetallic material of the component to a depth of no more than 300 m, as measured from said surface of the component.

A method of manufacturing a turbine blade, the method comprising forming a forging by forging stainless steel; heat treating the forging; and cooling the forging after the heat treatment; wherein in the heat treatment and the cooling, a plurality of the forgings are arranged in alignment, and adjacent forgings of the plurality of forgings are disposed so that at least respective portions of portions of the adjacent forgings corresponding to a region from a portion corresponding to a platform of a turbine blade to a center in a longitudinal direction of the turbine blade face each other and warm each other via radiant heat.

A method of manufacturing a turbine blade, the method comprising forming a forging by forging stainless steel; heat treating the forging; and cooling the forging after the heat treatment; wherein in the heat treatment and the cooling, a plurality of the forgings are arranged in alignment, and adjacent forgings of the plurality of forgings are disposed so that at least respective portions of portions of the adjacent forgings corresponding to a region from a portion corresponding to a platform of a turbine blade to a center in a longitudinal direction of the turbine blade face each other and warm each other via radiant heat.

This invention pertains to plastic injection mold tooling, and also large forgings, formed from a low carbon mold steel having markedly increased hardening and hardenability properties in large sections as contrasted to currently available commercial products. The above attributes are obtained together with equal or better machinability and improved mold parting line wear. When manufactured in conjunction with a double melt process, this invention can improve significantly polishing characteristics and other attributes of molded parts in tooling sets.

Embodiments of the present invention relate to a handling device for handling a metal component part between a furnace device and a further processing device. The handling device comprises a temperature-control chamber, in which the metal component part can be inserted, and a conveying device. The temperature-control chamber comprises a temperature-control unit that adjusts a temperature in the temperature-control chamber. The temperature-control chamber can be conveyed between a receiving position, in which the metal component part can be conveyed from the furnace device into the temperature-control chamber, and a dispensing position, in which the metal component part can be conveyed from the temperature control chamber to the further processing device. The conveying device is configured in such a manner that the metal component part can be conveyed in the receiving position by means of the conveying device between the furnace device and the temperature-control chamber and that the metal component part can be conveyed in the dispensing position by means of the conveying device between the temperature-control chamber and the further processing device.

Provided is martensitic steel which is used in structures such as buildings and bridges, and automotive underbody, and mechanical parts such as gears and is more suitably used for steel products such as thick steel sheets, shape steel, a deformed steel bar, steel bars, or steel wires. The martensitic steel has a microstructure of a martensite structure containing a chemical composition, by mass %, of Si: 1.0 to 3.5%, Mn: 4.5 to 5.5%, Al: 0.001 to 0.080%, Nb: 0.045% or less, and C having an amount in which the following regression equation (1) is satisfied and the maximum stress (TS) becomes 1800 to 2160 MPa, a balance being Fe and inevitable impurities of: P: 0.030% or less, S: 0.020% or less, and N: 0.010% or less, the martensitic steel having total elongation of 13 to 15%.
TS(maximum stress) [MPa]=4000C[mass %]+1050(1).

A transporting apparatus for rolling ingots, having at least one travelling carriage, includes a tilting frame and a guide frame, wherein the tilting frame has at least one longitudinally displaceable transporting carriage with a rail section, which is intended for accommodating an ingot rest and, for the purpose of forming a rail extension, can be positioned collinearly in relation to a furnace rail, and the guide frame has at least one hook carriage, which can be moved essentially parallel to the transporting carriage and comprises at least one tiltable hook for engaging in the ingot rest.

A rolled foil formed of the FeCu alloy according to an embodiment of the present invention is manufactured to consist of 3 to 30 wt % iron and 70 to 97 wt % copper having a thickness of 100 m to 10 m, by casting a molten metal of a FeCu parent alloy and a metal copper into a slab, heat-treating the slab, and roll-milling the heat-treated slab by using a multi-pass rolling mill with the total reduction ratio of 90% or higher. In this regard, the FeCu alloy rolled foil according to the present invention provides an effect of shielding electromagnetic waves of 80 dB or more within high frequencies ranging between 1 GHz to 1.5 GHz.