The mould contains a casting wheel, on the outer surface of which an open channel is made, a continuous tape adjacent to the casting wheel from its outer surface in such a way as to close the specified open channel, as well as a cooling system able of adjustable supply of coolant to the casting wheel and the continuous tape at least on the outer surface, on the inner surface and on both side surfaces of the wheel, in which the ratio of the coolant flow on the inner surface of the wheel to the coolant flow on the outer surface of the wheel is 1.9-3.0, and the ratio of the total coolant flow on the side surfaces of the casting wheel to the coolant flow on the inner surface of the casting wheel is 1.3-1.7.

An electromagnetic device for laterally containing a liquid metal, having a first electrical conductivity, at one open side end of a passage defined between two counter-rotating casting rolls, at least the surfaces of which are made of a ferromagnetic material, said device comprising a magnetic yoke made of a further ferromagnetic material having a second electrical conductivity either lower than or equal to said first electrical conductivity of the liquid metal and ending with two mutually proximal wedge-shaped ends, said wedge-shaped ends having respective inner surfaces, facing each other and defining a gap, and respective outer surfaces, arranged one on one side and the other on the other side with respect to a plane lying in said gap and shaped so as to be able to insert both said wedge-shaped ends at least partially between the two casting rolls; at least one coil wound on at least one stretch of the magnetic yoke and adapted to be supplied by electric current; at least one plate, made of a material having a third electrical conductivity either greater than or equal to said first electrical conductivity, said at least one plate being inserted in said gap so as to shield said inner surfaces with respect to each other.

An alloy cast strip preparation method includes a melting process and a casting cooling process. The melting process includes controlling a power of an induction melting furnace to perform a cyclic heat treatment to completely melt an alloy raw material before a surface temperature of a melt obtained by melting the alloy raw material is raised to 1300° C., and, after the alloy raw material is melted, adjusting the power of the induction melting furnace to stabilize the surface temperature of the melt at a temperature in a range from 1400° C. to 1500° C. The casting cooling process includes performing casting cooling on the melt arranged on a surface of a rotary cooling roll to obtain an alloy cast strip while controlling a surface linear velocity of the rotary cooling roll to be from 1.5 m/s to 2.25 m/s.

An electromagnetic device for laterally containing a liquid metal, having a first electrical conductivity, at one open side end of a passage defined between two counter-rotating casting rolls, at least the surfaces of which are made of a ferromagnetic material, said device comprising a magnetic yoke made of a further ferromagnetic material having a second electrical conductivity either lower than or equal to said first electrical conductivity of the liquid metal and ending with two mutually proximal wedge-shaped ends, said wedge-shaped ends having respective inner surfaces, facing each other and defining a gap, and respective outer surfaces, arranged one on one side and the other on the other side with respect to a plane lying in said gap and shaped so as to be able to insert both said wedge-shaped ends at least partially between the two casting rolls; at least one coil wound on at least one stretch of the magnetic yoke and adapted to be supplied by electric current; at least one plate, made of a material having a third electrical conductivity either greater than or equal to said first electrical conductivity, said at least one plate being inserted in said gap so as to shield said inner surfaces with respect to each other.

A method of analyzing water in a continuous casting process and controlling chemical addition to the water may involve measuring, with a plurality of sensors, at least one characteristic of a water in a plurality of different locations of a water recycle system for the continuous casting process. The continuous casting process can have multiple spray nozzles that spray water on a metal being cast, and the water recycle system may include a gravity settling tank, a filter, and a cooling tower. A processor can determine, using the measured at least one characteristic of the water from the plurality of sensors, a composite water quality value for the water in the water recycle system. A chemical additive can be controllably added into the water recycle system based on the determine composite water quality value.

A device for casting electrode grids for producing lead acid batteries in a continuous casting process. The device includes a casting wheel and a casting shoe which rests on an outer circumference of the casting wheel. Liquid lead exiting the casting shoe flows into a concave mold of the casting wheel surface and is removable as a solidified lead strip. The casting shoe is made up of two or more zones, at least a first hot zone with a temperature above the melting point of lead and a second, thermally separated zone with a temperature below the melting point of lead. Cooling the lead strip from two sides (the wheel side and the shoe side) avoids columnar crystal formation and increases the casting speed to 40 meter per minute and above. Thermal isolation of the lead feeding tube avoids re-flowing of lead to a lead pot, reducing PbO formation.

An alloy cast strip includes grains having R.sub.2Fe.sub.14B-type compound as main phase, where R denotes a rare earth element, Fe denotes iron, and B denotes boron. The grains include non-columnar grains having an aspect ratio in a range from 0.3 to 2 and columnar grains having an aspect ratio equal to or larger than 3. A ratio of an area of the non-columnar grains to a total area of the grains is equal to or larger than 60% and a ratio of a number of the non-columnar grains to a total number of the grains is equal to or larger than 75%. A ratio of an area of the columnar grains to the total area of the grains is equal to or smaller than 15% and a ratio of a number of the columnar grains to the total number of the grains is equal to or smaller than 10%.

A hermetically sealed container is equipped inside thereof with: a melting furnace; a cooling roll for subjecting the molten metal tapped from the melting furnace to primary cooling to form a casting; and a rotatable cooling drum which receives the casting formed by the cooling roll and which subjects the casting to secondary cooling. The cooling drum has: a tubular member elongated in one longitudinal direction and having a receiving opening which is formed to open on one side of the tubular member to receive therein the casting, and a discharge opening which is formed to open on an opposite side of the tubular member to discharge the casting that has been subjected to the secondary cooling; and a transfer means for transferring the casting received from the receiving opening toward the discharge opening in response to the rotation of the tubular member.

An alloy cast strip preparation method includes a melting process and a casting cooling process. The melting process includes controlling a power of an induction melting furnace to perform a cyclic heat treatment to completely melt an alloy raw material before a surface temperature of a melt obtained by melting the alloy raw material is raised to 1300 C., and, after the alloy raw material is melted, adjusting the power of the induction melting furnace to stabilize the surface temperature of the melt at a temperature in a range from 1400 C. to 1500 C. The casting cooling process includes performing casting cooling on the melt arranged on a surface of a rotary cooling roll to obtain an alloy cast strip while controlling a surface linear velocity of the rotary cooling roll to be from 1.5 m/s to 2.25 m/s.

The mould contains a casting wheel, on the outer surface of which an open channel is made, a continuous tape adjacent to the casting wheel from its outer surface in such a way as to close the specified open channel, as well as a cooling system able of adjustable supply of coolant to the casting wheel and the continuous tape at least on the outer surface, on the inner surface and on both side surfaces of the wheel, in which the ratio of the coolant flow on the inner surface of the wheel to the coolant flow on the outer surface of the wheel is 1.9-3.0, and the ratio of the total coolant flow on the side surfaces of the casting wheel to the coolant flow on the inner surface of the casting wheel is 1.3-1.7.