An apparatus for producing a semi-solidified metal has a heating device which heats a metal material, a vessel, a cooling device which cools the vessel, and a pouring device which pours the metal material into the vessel. The vessel has a hollow member which configures a wall of the vessel and is opened at both of the upper and lower ends and into which the metal material is poured from the upper opening, and a bottom member which closes the lower opening of the hollow member and configures the bottom of the vessel. The cooling speed of the metal material by the bottom member is faster than the cooling speed of the metal material by the hollow member.

An arc melting and tilt casting apparatus having a casing provided with a vacuum chamber for housing a hearth having a melting trough and pouring means, arc-melting electrode means passing through the casing in the chamber, a mold having a melt receiving orifice, vacuum generating means, sealing means for maintaining the vacuum in the chamber and tilting means for tilting the apparatus to cause the melt to flow from the melting trough via the pouring means in the mold through the mold orifice. The hearth and mold are connected together and moveable as a single unit in the vacuum chamber and out from the chamber.

An arc melting and tilt casting apparatus having a casing provided with a vacuum chamber for housing a hearth having a melting trough and pouring means, arc-melting electrode means passing through the casing in the chamber, a mold having a melt receiving orifice, vacuum generating means, sealing means for maintaining the vacuum in the chamber and tilting means for tilting the apparatus to cause the melt to flow from the melting trough via the pouring means in the mold through the mold orifice. The hearth and mold are connected together and moveable as a single unit in the vacuum chamber and out from the chamber.

A plant and a process are disclosed for producing components made of an aluminum alloy for vehicles and white goods, through the steps of: providing thixotropic billets made of an aluminum alloy; sizing the billets depending on a ratio between weight and size of the component to be produced, thereby obtaining crop ends of material; heating the crop ends in a range of temperatures during which both a solid phase and a liquid phase coexist with a prevalence in the solid phase (more than 50%) in heating means (5); loading, through loading means (9), the crop ends in an injecting vessel made of non-magnetic steel for further workings; removing, through scalping devices, an external part of the crop ends that has become cooled when passing from the heating means (5) to the loading means (9); firstly injecting the crop ends through a press; secondly injecting the crop ends through the press in 18 milliseconds by using a closed-loop control system and increasing the injection unit power with respect to a closing unit of the press; thirdly injecting the crop ends by coining the finished part in order to remove all porosities; extracting the molding through extracting means (13); depositing the molding onto a conveyor belt (15); and controlling a quality of the obtained molding, the molding being then sent to downstream mechanical workings and/or an heat treatment.

A plant and a process are disclosed for producing components made of an aluminum alloy for vehicles and white goods, through the steps of: providing thixotropic billets made of an aluminum alloy; sizing the billets depending on a ratio between weight and size of the component to be produced, thereby obtaining crop ends of material; heating the crop ends in a range of temperatures during which both a solid phase and a liquid phase coexist with a prevalence in the solid phase (more than 50%) in heating means (5); loading, through loading means (9), the crop ends in an injecting vessel made of non-magnetic steel for further workings; removing, through scalping devices, an external part of the crop ends that has become cooled when passing from the heating means (5) to the loading means (9); firstly injecting the crop ends through a press; secondly injecting the crop ends through the press in 18 milliseconds by using a closed-loop control system and increasing the injection unit power with respect to a closing unit of the press; thirdly injecting the crop ends by coining the finished part in order to remove all porosities; extracting the molding through extracting means (13); depositing the molding onto a conveyor belt (15); and controlling a quality of the obtained molding, the molding being then sent to downstream mechanical workings and/or an heat treatment.

An automated guided vehicle (AGV) including a frame, ground-contacting elements connected to the frame for supporting the AGV and a heat shield is used in an automated sow casting facility. AGVs are adapted to get hold of, to move and to release moulds used for producing sows. A method of operating the casting facility involving AGVs to move moulds between stations is also described.

An automated guided vehicle (AGV) including a frame, ground-contacting elements connected to the frame for supporting the AGV and a heat shield is used in an automated sow casting facility. AGVs are adapted to get hold of, to move and to release moulds used for producing sows. A method of operating the casting facility involving AGVs to move moulds between stations is also described.

The invention relates to an arrangement, in particular a construction site, and a process for the construction of a steel plant for the production of long or flat products and a related steel plant which includes its subdivision into areas of greater (H) or lesser load (L), wherein the loads of the area of lesser load (L) (<1.5 tons/m.sup.2) are placed on a raised plancher made of columns and slabs which have been prefabricated simultaneously with the construction of the building, which houses the production line of the steel plant, and the areas of greater load in a zone (PF; PC, C) which is preferably covered, adjacent to the construction zone of the building which includes a reinforcement production zone, a casting zone; and a curing zone. The post-tensioning technique of slabs is applied. The invention allows to speed up the construction of the steel plant.

The invention relates to an arrangement, in particular a construction site, and a process for the construction of a steel plant for the production of long or flat products and a related steel plant which includes its subdivision into areas of greater (H) or lesser load (L), wherein the loads of the area of lesser load (L) (<1.5 tons/m.sup.2) are placed on a raised plancher made of columns and slabs which have been prefabricated simultaneously with the construction of the building, which houses the production line of the steel plant, and the areas of greater load in a zone (PF; PC, C) which is preferably covered, adjacent to the construction zone of the building which includes a reinforcement production zone, a casting zone; and a curing zone. The post-tensioning technique of slabs is applied. The invention allows to speed up the construction of the steel plant.

An automated guided vehicle (AGV) including a frame, ground-contacting elements connected to the frame for supporting the AGV and a heat shield is used in an automated sow casting facility. AGVs are adapted to get hold of, to move and to release moulds used for producing sows. A method of operating the casting facility involving AGVs to move moulds between stations is also described.