A metal material processing machine along a feeding direction includes a feeding device, a moving device, a guiding device, and first to fourth rail driven devices. The feeding device feeds a metal material along the feeding direction. The moving device moves the metal material forward. The metal material is guided by the guiding device. The metal material is disengaged from the moving device. The metal material moves along a direction opposite to the feeding direction until backs a starting point. The first rail driven device is aligned with the feeding direction. The second rail driven device is aligned with the third rail driven device. The second and third rail driven devices are perpendicular to the feeding direction respectively. The second and third rail driven devices are disposed at two sides of the feeding direction respectively. The fourth rail driven device is aligned with the feeding direction.

A metal material processing machine along a feeding direction includes a feeding device, a moving device, a guiding device, and first to fourth rail driven devices. The feeding device feeds a metal material along the feeding direction. The moving device moves the metal material forward. The metal material is guided by the guiding device. The metal material is disengaged from the moving device. The metal material moves along a direction opposite to the feeding direction until backs a starting point. The first rail driven device is aligned with the feeding direction. The second rail driven device is aligned with the third rail driven device. The second and third rail driven devices are perpendicular to the feeding direction respectively. The second and third rail driven devices are disposed at two sides of the feeding direction respectively. The fourth rail driven device is aligned with the feeding direction.

A forge and method of forging is provided. The forge converts an asymmetric railroad rail to a symmetric railroad rail through a combination of vertical and horizontal forging operations. The rail is linearly translated to heating and forging stations on a roller table. The asymmetric to symmetric conversion can be completed without the need for reorienting the rail except along a single translational axis.

A method and an apparatus for manufacturing a rail having high ductility in both a head portion and a foot portion. A heated steel rail material is hot-rolled, the temperature is adjusted by cooling the hot-rolled steel rail material, the steel rail material subjected to the temperature adjustment is processed into a rail shape by means of temperature-adjusted rolling at an area reduction ratio of 20% or more, and, in adjusting the temperature of the steel rail material, the surface portions of the steel rail material corresponding to a head portion and a foot portion of the rail shape so that the temperatures of the surface portions reach 500° C. or more and 1,000° C. or less.

A method and an apparatus for manufacturing a rail having high ductility in both a head portion and a foot portion. A heated steel rail material is hot-rolled, the temperature is adjusted by cooling the hot-rolled steel rail material, the steel rail material subjected to the temperature adjustment is processed into a rail shape by means of temperature-adjusted rolling at an area reduction ratio of 20% or more, and, in adjusting the temperature of the steel rail material, the surface portions of the steel rail material corresponding to a head portion and a foot portion of the rail shape so that the temperatures of the surface portions reach 500° C. or more and 1,000° C. or less.

A drum (10,12) for receiving, transporting and discharging long metal products (P), such as bar or the like, preferably coming from a hot rolling mill: the drum includes at least one pair of channels (C1-C2) extending longitudinally axially and the channels being around the circumference of the drum, the channels simultaneously receive two long products (P1,P2), respectively one long product in each one of the channels that is part of the pair. Also a method and a system for handling long rolled products coming from different strands of a rolling mill are disclosed.

A drum (10,12) for receiving, transporting and discharging long metal products (P), such as bar or the like, preferably coming from a hot rolling mill: the drum includes at least one pair of channels (C1-C2) extending longitudinally axially and the channels being around the circumference of the drum, the channels simultaneously receive two long products (P1,P2), respectively one long product in each one of the channels that is part of the pair. Also a method and a system for handling long rolled products coming from different strands of a rolling mill are disclosed.

According to one aspect of the present invention, what is provided is a rail including, by mass %: C: 0.75% to 1.20%; Si: 0.10% to 2.00%; Mn: 0.10% to 2.00%; Cr: 0.10% to 1.20%; V: 0.010% to 0.200%; N: 0.0030% to 0.0200%; P≤0.0250%; S≤0.0250%; Mo: 0% to 0.50%, Co: 0% to 1.00%; B: 0% to 0.0050%; Cu: 0% to 1.00%; Ni: 0% to 1.00%; Nb: 0% to 0.0500%; Ti: 0% to 0.0500%; Mg: 0% to 0.0200%; Ca: 0% to 0.0200%; REM: 0% to 0.0500%; Zr: 0% to 0.0200%; Al: 0% to 1.00%; and a remainder consisting of Fe and impurities, in which a structure ranging from an outer surface of a head portion as an origin to a depth of 25 mm includes 95% or greater of a pearlite structure by area ratio, the hardness of the structure is in a range of Hv 360 to 500, and in ferrite of the pearlite structure at a position at a depth of 25 mm from the outer surface of the head portion as the origin, the number density of a V nitride having a grain size of 0.5 to 4.0 nm and including Cr is in a range of 1.0×10.sup.17 to 5.0×10.sup.17 cm.sup.−3.

According to one aspect of the present invention, what is provided is a rail including, by mass %: C: 0.75% to 1.20%; Si: 0.10% to 2.00%; Mn: 0.10% to 2.00%; Cr: 0.10% to 1.20%; V: 0.010% to 0.200%; N: 0.0030% to 0.0200%; P≤0.0250%; S≤0.0250%; Mo: 0% to 0.50%, Co: 0% to 1.00%; B: 0% to 0.0050%; Cu: 0% to 1.00%; Ni: 0% to 1.00%; Nb: 0% to 0.0500%; Ti: 0% to 0.0500%; Mg: 0% to 0.0200%; Ca: 0% to 0.0200%; REM: 0% to 0.0500%; Zr: 0% to 0.0200%; Al: 0% to 1.00%; and a remainder consisting of Fe and impurities, in which a structure ranging from an outer surface of a head portion as an origin to a depth of 25 mm includes 95% or greater of a pearlite structure by area ratio, the hardness of the structure is in a range of Hv 360 to 500, and in ferrite of the pearlite structure at a position at a depth of 25 mm from the outer surface of the head portion as the origin, the number density of a V nitride having a grain size of 0.5 to 4.0 nm and including Cr is in a range of 1.0×10.sup.17 to 5.0×10.sup.17 cm.sup.−3.

A generating device based on friction drive for gear involute artifact with long-rolled path length by rolling method is proposes. The device includes a roller component, rail component and friction-driven component, wherein the roller component consists of a gear involute artifact with long rolled length, a mandrel, a multi-ball bearing for gear involute artifact, the base-circle plates, the parallel sleeves, a multi-ball bearing, the plain washers, the cross washers, and the locking nuts; the rail component consists of a foundation, a location baffle for base-circle plates, rails, the baffles, a location baffle for rail, copper washers, the connecting screws and the set screws of the rail; and the friction-driven component consists of a friction block, a motorized linear sliding table, a vertical sliding table, a vertical foundation and an adapter. It has good market application prospect and popularization value.