A process for reusing or repurposing materials includes providing one or more metal products, heating the one or more metal products and pressing the one or more heated metal products in a die to produce a construction component. A roofing product includes a plate-like body formed from heating the one or more metal products and pressing the one or more heated metal products in a die and includes one or more surfaces surrounding the plate-like body and having patterned treatments.

A method of producing a forged product is described, in which a forging component is hot-forged using a lower die and an upper die. The method includes a first process in which at least a part of an die face of the lower die is covered with a first glass lubricant; a second process in which the lower die is heated; a third process in which at least a part of the forging component is covered with a second glass lubricant; a fourth process in which the forging component is heated to a temperature that is higher than a heating temperature of the lower die in the second process; and a fifth process in which the forging component is placed on the die face of the lower die and hot forging is performed using the lower die and the upper die.

A method of producing a forged product is described, in which a forging component is hot-forged using a lower die and an upper die. The method includes a first process in which at least a part of an die face of the lower die is covered with a first glass lubricant; a second process in which the lower die is heated; a third process in which at least a part of the forging component is covered with a second glass lubricant; a fourth process in which the forging component is heated to a temperature that is higher than a heating temperature of the lower die in the second process; and a fifth process in which the forging component is placed on the die face of the lower die and hot forging is performed using the lower die and the upper die.

A process of manufacturing of segment for carbon thrust bearing uses stainless-steel (SS) round bars/sheets/logs of suitable grade as raw material. The SS round bars/sheets/logs undergo cutting operation to cut into SS billets. The billets successively undergo heating and hot forging processes to form segments of desired shapes. Thereafter, the segment is subjected to heat treatment process i.e. stress relieving, hardening and tempering process successively for obtaining consistent and uniform grain structure, mechanical properties and physical properties of segments which are cost-effective in terms of lower maintenance and lower handling efforts. After heat-treatment process, segment undergoes surface-finishing processes i.e. grinding, lapping and polishing successively for obtaining mirror like surface finishing that gives greater anti-friction property and lower co-efficient of friction. The manufacturing process according to present invention yields consistent grain structure, refine, dense and uniform microstructure of segments which imparts optimum strength, ductility, toughness and resistance to impact and fatigue.

The present invention provides a forging and pressing production management method, comprising the steps of: A. acquiring at least one characteristic of a fed material; B. correspondingly selecting, according to the characteristic of the material, at least one of the temperature, the pressure or a mold from among operating factors of the forging and pressing process; C. transporting the material according to the selection result; and D. processing the material until a finished product is produced.

The present invention enables at least one material to be formed by hot melt and forging and pressing by itself without human operation, thereby completing the mass production of the material. Operating factors such as the pressure, temperature and mold required for formation are taken into account, and the identification requirements for the material are reduced, thereby realizing large-scale production.

The present invention provides a forging and pressing production management method, comprising the steps of: A. acquiring at least one characteristic of a fed material; B. correspondingly selecting, according to the characteristic of the material, at least one of the temperature, the pressure or a mold from among operating factors of the forging and pressing process; C. transporting the material according to the selection result; and D. processing the material until a finished product is produced.

The present invention enables at least one material to be formed by hot melt and forging and pressing by itself without human operation, thereby completing the mass production of the material. Operating factors such as the pressure, temperature and mold required for formation are taken into account, and the identification requirements for the material are reduced, thereby realizing large-scale production.

The provided are a high-performance titanium connecting sealing ring for deep-sea oil drilling and production device and a processing method. The sealing ring comprises a ring-shaped ring body, wherein the center hole of the ring body is an inner circumferential surface; a ring-shaped convex plate, a platform, an inclined end surface and a flat end surface are arranged in sequence in the circumferential direction of the outer circumferential surface of the ring body; and threads are processed in the inner circumferential surface. The processing method for the titanium connecting sealing ring mainly comprises the steps of preparation of titanium sponge, vacuum melting of a titanium ingot, forging and pressing, heating forging, heat treatment and machining.

The provided are a high-performance titanium connecting sealing ring for deep-sea oil drilling and production device and a processing method. The sealing ring comprises a ring-shaped ring body, wherein the center hole of the ring body is an inner circumferential surface; a ring-shaped convex plate, a platform, an inclined end surface and a flat end surface are arranged in sequence in the circumferential direction of the outer circumferential surface of the ring body; and threads are processed in the inner circumferential surface. The processing method for the titanium connecting sealing ring mainly comprises the steps of preparation of titanium sponge, vacuum melting of a titanium ingot, forging and pressing, heating forging, heat treatment and machining.

A nitrided part having excellent fatigue strength which has predetermined constituents, has structures comprised of ferrite and pearlite, has ferrite grains with an aspect ratio of a ratio of a long axis direction and short axis direction of 4.5 or more present in the entire region at a depth from the surface of the part where stress is expected to concentrate of (0.09+0.05) mm or less, and has an average concentration of N of 5000 ppm or more at a surface layer part from the surface down to 200 m in the depth direction.

Provided is a Ni-based alloy for hot forging die having high compressive strength at high temperature and good oxidation resistance that is capable of suppressing work environment deterioration and shape deterioration. A Ni-based alloy for hot forging die in the present invention includes, by mass, 7.0 to 12.0% W, 4.0 to 11.0% Mo, 5.0 to 7.5% Al, and 0.5 to 7.5% Cr, and the balance of Ni with inevitable impurities. In addition, the Ni-based alloy for hot forging die may further include 0.5 to 7.0% by mass Ta and may further include one or more elements selected from, by mass, 0.001 to 0.5% Zr, 0.001 to 0.5% Hf, 0.001 to 0.2% a rare-earth element, 0.001 to 0.2% Y, and 0.001 to 0.03% Mg. The Ni-based alloy for hot forging die may have a 0.2% compressive proof strength of at least 500 MPa at a test temperature of 1000 C. and a strain rate of 10.sup.3/sec.