Abstract: A mold welded with a dissimilar metal member manufactured by pressingly bringing the dissimilar metal member into contact with a mold formed of copper or a copper alloy in a stationary state while rotating the dissimilar metal member at a high speed, stopping the dissimilar metal member, and providing a forced pressure larger than the pressure in the first step to the mold. The present mold solves the problems of efficient cooling and attachment of back frame. Also, a variety of problems including cutting processing loss of copper or copper alloy plate, long processing times, heat distortion and heat deterioration of copper plates, etc, can be solved. Further, welding position precision and welding strength of stud bolts can be improved. Finally, the invention concerns a mold welded with a dissimilar metal member where the mold is manufactured by the first step shown above.

Abstract: Continuously casting a billet with a small cross section by pouring molten steel into a mold using a cylindrical immersion nozzle is characterized by measuring the molten steel level in the mold using an eddy current sensor. The level is controlled based on the thus-measured value, motion of steel in the mold is adjusted by electromagnetic stirring, a cooling zone during the final period of solidification is disposed within a certain region ranging from the meniscus to the specific site, and casting speed is adjusted so that the region in which the solid phase ratio at the billet center is 0.3-0.99 may be included in the cooling zone during the final period of solidification. The secondary cooling water amount and the billet surface temperature at the entrance to the cooling zone the density of cooling water in the cooling zone during the final period of solidification are optimized.

Abstract: A mold (10) for the continuous casting of metal including a cooled running surface (11) and a guide (12) for molten metal. The guide is made of a refractory material and is disposed upstream of the running surface (11) in the direction of flow. The guide (12) is radially prestressed.

Abstract: The objective of the present invention is to provide a product that is superior in barrier properties (for example, zinc erosion resistance and anti-adhesive property), abrasion resistant property, surface hardening property, thermal stability and life-time prolonging property. The product, which is made in direct contact with molten metal containing zinc in a molten state, is characterized by including an iron-tungsten alloy coating that is applied to a part or the whole of the surface of the product that comes directly in contact with the molten metal.

Abstract: Apparatus (300, 400) for laying an elongate member such as a pipe (306) or a rail (472). Material carried by the apparatus is smelted in a furnace (340) and fed to a casting head (342) by which the elongate member is continuously cast. The so cast elongate member is then laid by the apparatus, as it travels on the ground surface.

Abstract: A water-cooled mold for continuous casting includes two water-cooled wide copper plates arranged opposite to each other in a front and back direction and two water-cooled narrow copper plates arranged opposite to each other in a left and right direction. The upper portion of the cavity of the mold is a sprue area and the lower portion of the cavity is a mold cavity area. The sprue area is gradually narrowed in the casting direction and smoothly transited into the mold cavity, corresponding to the shape of a slab to be cast. The inside surfaces of the water-cooled narrow copper plates are smooth planar surfaces. A portion of the inside surface of the water-cooled wide copper plates in the sprue area is a curved surface and another portion in the mold cavity area is a planar surface. The curved surface and the planar surface portions form a continuous smooth surface.

Abstract: Ingot mold for casting ultra thin slabs to be used, for instance, in a manufacturing plant for the manufacture of metal strips, having two wide concave walls (11) in the center and two flat portions (12) parallel to the plane of symmetry X in the end zones connected by two convex connecting zones (13) wherein the ratio between the lengths d/l is between 10 and 60% and the ratio h/f is between 10% and 60%.

Abstract: In a process for producing steel long products by continuous casting of steel to form billet and bloom strands (5) and subsequent rolling of said billet and bloom strands, the liquid steel is cast in a continuous-casting permanent mould (3). The cast billet and bloom strands (5) are fed substantially without subsequent heating directly to a roll train (20). This makes the design of the plant more simple, and more cost-effective operation is made possible.

Abstract: Exemplary embodiments of the invention relate to a side dam block for a continuous metal caster apparatus. The block comprises a body of molten metal resistant material having a metal-contacting surface. The metal contacting surface has a plurality of indentations therein, the indentations having openings at the metal-contacting surface dimensioned to prevent penetration of molten metal into the indentations under casting conditions. Due to a smaller area of direct contact between the molten metal and the surfaces of the blocks, the blocks extract less heat from the molten metal than conventional blocks and help to reduce so-called “dog-bone” and “sink” type deformation of the cast article.

Abstract: Exemplary embodiments of the invention provide a side dam for a continuous metal casting apparatus having elongated opposed casting surfaces forming a casting cavity. The side dam has an elongated upstream part and an elongated downstream part that are mutually laterally pivotable, and a smooth metal-contacting side surface extending continuously from an upstream end to a downstream end of the side dam. The surface has regions thereof formed on the upstream part and the downstream part. Mutual pivoting of the upstream part and the downstream part of the side dam enables the regions of the smooth metal-contacting side surface to be moved out of mutual coplanar alignment. The side dams can therefore be used to form either a convergent or divergent casting cavity to assists the casting procedure and to enhance the properties of the cast article.

Abstract: A broadside (100) for the broadside of a funnel mold for the casting of metal. Known broadsides of this kind have at least one groove-shaped cooling channel (110) in the backside (R) of the broadside. Adjacent the cooling channel (110) on the backside of the broadside, recesses (A1, . . . , A5) are provided as well as filler elements (140-1, . . . , -5) for the at least partial sealing of the recesses. In order to constructively simplify the broadside in view of the adjustment of a generally constant flow rate of a cooling medium through the cooling channel, it is proposed to design the recesses (A1, . . . , A5) in such a way, that they cross the cooling channel (110) diagonally to its longitudinal direction. Moreover, the recesses (A1, . . .

Abstract: A method and apparatus for casting metals in a DC mold to form an ingot or product having at least two layers formed by sequential solidification. The apparatus has at least one cooled divider wall at the entry end portion of the mold to divide the entry end portion into at least two feed chambers. Metal is fed to the chambers to form an inner layer and at least one outer layer. The divider wall has a metal-contacting surface for contacting the metal for the at least one outer layer, the surface being arranged at an angle to the vertical sloping away from the metal for the outer layer in a downward direction. The angle increases at positions on the divider wall spaced from a central section of the wall approaching each longitudinal end thereof. The apparatus is suitable for casting a metal having a high coefficient of contraction as an inner layer or core ingot, e.g. a high-Mg or high-Zn aluminum alloy, or metal combinations having a large difference in their coefficients of contraction.

Abstract: A continuous cast molten metal mold and casting system is disclosed, which may include a heat distribution or temperature management system for billet type molds, a mold assembly expansion system for continuous cast molds and/or an adjustable mold bore length mechanism.

Abstract: In a mold for casting a billet with a curved type continuous casting apparatus, D0 (m) is an inner diameter at a lower mold edge and R0 (m) is a curvature radius of an outer curvature side at the lower mold edge. When a rate of change Tp (%/m) in mold inner diameter per unit length along a casting direction is Tp=(1/D0)×(dD/dx)×100 (%/m), and when a rate of change Rp (%/m) in curvature radius of an outer curvature side per unit length along the casting direction is Rp=(1/R0)×(dR/dx)×100 (%/m), the rate of change Tp in mold inner diameter and the rate of change Rp in curvature radius satisfy a relationship expressed Rp=(Tp/2)×(D0/R0), where D is a mold inner diameter at a distance x away from an upper mold edge and R in Formula 2 is a curvature radius of the outer curvature side at the distance x.

Abstract: A permanent chill mold for the continuous casting of metals, comprising a mold tube (1) placed in a water box, a water gap being formed between the inner side of the wall of the water box and the outer side (2) of the mold tube (1). In the water gap, at least one sheet metal water deflector (3) is situated, the mold tube (1) being supported at least in one direction to be laterally freely shiftable with respect to the water box and the working position of the mold tube (1) being adjusted by the flow relationships in the water gap.

Abstract: A continuous casting device for producing slabs of steel having a mold and a roller apron downstream of the mold which has frameworks with bottom frames and top frames at which are provided guide rollers whose gap width is continuously adjustable by means of adjusting elements which connect the frames. Cylinders controlled by switching valves are provided as adjusting elements. The advantages of position-regulated cylinders as adjusting elements are made use of, but at a reduced cost. To this end, the valves are constructed as fast switching valves, or the valves are provided with a control enabling a fast switching process.

Abstract: The invention relates to a continuous casting installation, for example for steel billet and bloom formats having substantially rectangular or circular cross-section. The invention improves the strand structure in the corner areas, to avoid rhomboidity, cracks and dimensional imperfections of the strand cross-section while achieving a high throughput capacity per strand and reducing investment and running costs. The fillets of the groove curvatures in the die cavity amount to a proportion of the length of the side of the strand cross-section. The degree of curvature 1/R of the groove curvatures decreases in the direction of the strand at least along at least partial length of the entire casting die, thereby achieving gap elimination between the casting shell and the casting die wall and/or a targeted casting shell shaping in the area of the groove curvature.

Abstract: A continuous casting machine injecting molten mold flux into a mold includes: melt-surface covers covering the upper side of the mold; gas aspirators provided below the melt-surface covers for inhaling the gas in an upper space of the mold; and purge gas injectors provided below the melt-surface covers for injecting purge gas into the upper space of the mold.

Abstract: A liquid-cooled permanent chill mold for the continuous casting of metals, including a permanent chill mold plate (2) made of copper or a copper alloy and an adapter plate (3), on which the permanent chill mold plates (2) are fastened via fastening bolts (12). The permanent chill mold plates (3) are coupled to the adapter plates (3) via sheet metal holders (19) situated in their top regions and base regions (20, 21), in addition to via the fastening bolts (12).

Abstract: In order to be able to carry out a multiplicity of continuosly recurring activities at a continuous casting plant having at least one multifunction robot for implementing a plurality of different process-controlled or automated interventions at the continuous casting plant, at least one working region at the continuous casting plant and at least one multifunction robot assigned to each working region. The multifunction robot is arranged on a pivotable arm at a rotary column fastened to the pouring platform of the continuous casting plant and the robot can be pivoted with the pivot arm between a retraction position and a working position. The robot is also movable with respect to its arm.

Abstract: A liquid-cooled permanent mold for the continuous casting of metals, comprising mold plates (1) made of copper or a copper alloy, which are connected respectively to an adapter plate or a water-cooling tank by clamping bolts, the clamping bolts being fastened to plateau pedestals (3) that protrude in an insular fashion from the coolant side (2), which at least partially extend into a coolant gap formed between the mold plate (1) and the adapter plate or the cooling-water tank, and have a streamlined form adjusted to the flow direction of the coolant. The coolant side (2) has cooling ribs (4, 5, 6, 7) that extend into the coolant gap and are situated from place to place between two adjacent plateau pedestals (3).

Abstract: A permanent chill mold for the continuous casting of metal, having a mold cavity (2) which has a pouring slot (3), an exit opening (4) and a casting cone (6). At least one concave bulging (7) is provided that extends in the casting direction (G), which begins at a distance (A) below a predetermined casting bath level position (5) and extends up to the exit opening (4).

Abstract: Ingot mold for casting ultra thin slabs to be used, for instance, in a manufacturing plant for the manufacture of metal strips, having two wide concave walls (11) in the center and two flat portions (12) parallel to the plane of symmetry X in the end zones connected by two convex connecting zones (13) wherein the ratio between the lengths d/l is between 10 and 60% and the ratio h/f is between 10% and 60%.

Abstract: A liquid-cooled permanent mold for a continuous casting installation having a shaping permanent mold body, for example, made of copper or copper alloy. Cooling channels are provided in permanent mold body that extend from its upper side to its lower side. The cooling channels each have two longitudinal sections and the cooling sections have an alignment of their longitudinal axes that differ from one another. In this way, the horizontal distance of the cooling channels from the casting surface is varied and a cooling performance is achieved that is adjusted to the weighting profile of the permanent mold.

Abstract: In order to increase the endurance and lifetime of highly loaded components (6, 8, 12, 14, 24, 26, 34) of a steelworks, an electrolytically applied coating (38) is provided, having a ductile metallic base material (39), in particular nickel or a nickel alloy, with hard material particles (40), in particular boron carbide particles, incorporated in it. This measure achieves high resistance to corrosion, good thermal conductivity and at the same time high mechanical loadability.

Abstract: In the continuous casting of round or polygonal billet and bloom formats, use is made of moulds the mould cavity of which comprises a copper tube (3) which is intensively cooled by means of water-circulation cooling. In order to increase the cooling capacity on the one hand and the dimensional stability of the mould cavity (4) on the other hand, and also extend the total service life of the copper tube (3), it is proposed to provide the copper tube (3) with a supporting shell (12) or supporting plates over the entire circumference at the tube outer lateral surface (5). For the cooling of the copper tube (3), cooling ducts (6) for guiding the cooling water are arranged on the copper tube (3) or on the supporting shell (12). The cooling ducts (6) are distributed over the entire circumference at the tube outer lateral surface (5) and extend substantially over the entire mould length.

Abstract: The invention relates to a method for producing a continuous casting mold (1), during which at least one surface (2) is mechanically machined that is in contact with molten material during normal use of the mold. The aim of the invention is to achieve a uniform distribution of the heat flux over the mold. To this end, the invention provides that, as the last working step during the production of the surface (2) of the mold (1), a mechanical machining is carried out whereby producing a surface anisotropy. The invention also relates to a continuous casting mold.

Abstract: The production of steels with high contents of manganese (Mn), aluminum (Al), and silicon (Si) with TWIP properties (Twinning-Induced Plasticity) by continuous casting is considered difficult or impossible in the present state of the art for various reasons. These reasons include low strength of the strand shell during solidification due to intense microsegregation of Mn, high strength at relatively low temperatures, reactions of the aluminum in the steel with the flux powder, macrosegregation, depletion of the alloying elements near the surface, and oxidation of the grain boundaries during the reheating of slabs in the pusher furnace. Therefore, in accordance with the invention, successively arranged process steps are used to cast light gauge steel with a given chemical composition of 15-27% Mn, 1-6% Al, 1-6% Si, ?0.

Abstract: The objective of the present invention is to provide a product that is superior in barrier properties (for example, zinc erosion resistance and anti-adhesive property), abrasion resistant property, surface hardening property, thermal stability and life-time prolonging property. The product, which is made in direct contact with molten metal containing zinc in a molten state, is characterized by including an iron-tungsten alloy coating that is applied to a part or the whole of the surface of the product that comes directly in contact with the molten metal.

Abstract: The invention relates to a method for production of a metal strip from a strip (6), cast directly from molten metal (4), whereby a trimming of the strip edges (9, 9?) of the strip (6) is carried out, characterised in that the strip edges (9, 9?) are cooled before the trimming in such way as to render said edges more brittle than the rest of the strip (6). The invention further relates to a unit for processing a thin metal strip (6), arising from the casting of thin strips directly from molten metal, characterised in comprising a unit for the controlled, exclusive or preferential cooling of the strip edges (9, 9?) of the strip (6).

Abstract: The invention relates to a continuous casting mould for liquid metals, especially for liquid steel, comprising steel charging plates (2) which are surrounded by water reservoirs (1), cassette-type copper plates (3) arranged against the same, end plates (7), if needed, for the thickness and/or the width of the cast billet, and coolant channels (9). The aim of the invention is to take measures to counteract the high temperatures in the meniscus region (13) using appropriate embodiments of the copper plates (3) and/or the steel charging plates (2). To this end, the thickness (10) of the copper plates (3) between the coolant (11) and the hot side (3a) of the copper plates varies along the width (2×L) and/or in terms of the height (12).

Abstract: A thin steel strip with low surface roughness and low porosity produced by casting with molten steel having a total oxygen content of at least about 100 ppm and a temperature that allows a majority of any oxide inclusions to be in a liquidus state. The steel strip produced by the method may have a per unit area density of at least about 120 oxide inclusions per square millimeter to a depth of about 2 microns from the strip surface.

Abstract: A perimeter wall lubrication system for molten metal molds wherein the lubricant conduit within the permeable perimeter wall is configured with a K constant which is lower than 40 or more in the equation where X is the perimeter of the groove in the permeable perimeter wall and Y is the perimeter to area ratio, relative to the equation k=XY in a plot of the respective values.

Abstract: A method of producing aluminum castings which includes the steps of casting a molten alloy, contacting the surface of the molten alloy with a humidified atmosphere and solidifying the alloy. The method is particularly suited for aluminum-magnesium alloys such as AA 5XXX and 7XXX series alloys. In addition to reducing the thickness of the surface oxide layer formed during casting, the method also provides improved surface quality of cast products and reduces subsequent remedial re-work or scalping. An improved aluminum-magnesium cast alloy product is also disclosed.

Abstract: A mould for continuously casting metal strips comprises a pair of side walls (11) on opposite sides of an open-ended mould cavity (C) having an entrance end (E) for continuously receiving molten metal and an exit end (D) for continuously discharging a moving solidified strip (D) formed from the molten metal. Each mould side wall (11) includes a graphite block (13) formed of a stack of a multiplicity of elongate graphite laminae (16) having opposite faces (16A) and inner edges (16B), said inner edges (16B) jointly forming a surface (16A) directed toward the mould cavity (C). The mould further comprises a cooling system associated with each graphite block (13) and including coolant tubes (15) extending through the stack transversely to said opposite faces (16A) of the graphite laminae (16) forming the stack.

Abstract: A metal object is formed by die-casting with the use of a specially treated mold. The mold has cavity-defining surfaces covered by a heat-insulating layer made of a material that includes ceramic powder and heat-resistant resin. Molten metal is injected into the cavity coated with the heat-insulating layer.

Abstract: A die cavity of a casting die, such as for continuously casting billets, blooms and blanks. The die cavity has a cross-section with a partially curved peripheral line, whereby, with the cavity walls cooled, provides improved heat exchange between a forming strand shell and the die cavity wall, thus avoiding solidification defects in the strand shell. The degree of curvature 1/R is reduced at least on part of the curved peripheral line of the corner regions from peripheral lines of the same corner regions, that are successive in the casting direction, and at least over part of the length of the die, in the concave corner regions of the die cavity, in order to control the targeted closure of the gap between the strand shell and the cooled die cavity, or a targeted strand shell deformation.

Abstract: A chill tube (1) having a double T-shaped inner and outer cross section in beam blank format is encased in a water-guiding jacket (12) adapted to its outer contour while forming a water gap (14). The wall thickness (D) of chill tube (1) in the rounded transition regions (2) from middle crosspieces (4), which face each other head to head and are drawn in towards longitudinal axis (3), to the neighboring crosswise positioned flanges (5) is dimensioned at least partially smaller than in the remaining wall sections (6, 7). The reduction in wall thickness is implemented by longitudinal hollow recesses (8). These recesses (8) extend only in the height range of the bath level. Into the cross sectional regions which are formed by the outer contour of chill tube (1) as well as the inner contour of water-guiding jacket (12), filler pieces (17) are incorporated, adapted to this cross section.

Abstract: A device for continuous or semi-continuous casting of metal comprising a mould having a number of mould elements (1, 2) which together form a mould adapted for receiving a liquid metal (6), a mould supporting structure (30, 31) surrounding the mould and mechanically supporting it, and an induction coil (20) arranged close to the mould for reducing the contact pressure between the melt and the mould. At least one of the mould elements is divided into at least a first (1a, 2a) and a second (1b, 2b) part arranged so that they are electrically insulated from each other, the first mould element part being arranged before the second mould element part relative to the casting direction and said induction coil is arranged close to the first mould element part (1a, 2a).

Abstract: A copper casting mold for the continuous casting of steel melts is provided, in the presence of zinc and or sulfur in the thermally most greatly stressed contact region with the steel melt, with an at least single-layer diffusion barrier layer made of at least one metallic/metalloid material.

Abstract: An apparatus for the continuous casting of metals, especially of steel, is equipped with a base frame (2) carrying a continuous casting mold (1) and an oscillating device (3) disposed on the base frame (2) and with a foot roller frame (4) disposed on the foot end (1a) of the continuous casting mold (1). In order to obtain better protection for the mold region and components disposed downstream thereof, it is proposed that the continuous casting mold (1) together with an oscillation frame (3b) and an oscillating drive (3a) engaging the oscillating frame (3b) be arranged in an upwardly and laterally closed housing (5) and that the foot roller frame (4) fastened on the continuous casting mold (1) extends through a laterally shielding lower housing (6).

Abstract: A machine for vertical casting of metal, including a frame on which casting molds can be mounted and through which cooling water can be supplied during casting. The frame includes a horizontal cantilever arm protruding from a support and being journalled in the support with one end, for vertical pivoting of the frame, said support being rotatable about a vertical axis for horizontal pivoting of the frame.

Abstract: The invention relates to a mold wall for plate molds, tubular molds or similar, especially a broadside wall of a continuous casting mold for steel. The inventive plates consisting of copper or a copper alloy, which are either provided with coolant channels or are in thermally conductive contact with a water tank. Said plates have a surface which comes into direct contact with the steel melt and a protective layer applied to said surface. The wear resistance and mechanical workability are improved as a result of the protective layer consisting of a galvanically manufactured binary or ternary metal alloy dispersion, e.g. based on nickel with intercalated dispersants.

Abstract: Apparatus for continuous vertical casting of metal strips, comprising: a mould (10) having top and bottom ends an open-ended mould cavity (C), a tundish (11) having a discharge opening (11A) in direct communication with the mould cavity (C) to feed molten metal into a mould entrance opening (E) past an interface between the tundish (11) and the mould (10); a sealing device (14) forming a seal at said tundish-mould interface to prevent molten metal from entering said interface, and a device (12) for supplying molten metal to the tundish (11) and maintaining a level of molten metal therein. The scaling device (14) comprises a pair of flat horizontal surfaces (10A, 11B), one on the mould around the entrance opening (E) and one on the tundish (10) around the discharge opening (11A), and a sealing element (14A) formed of a sheet of graphite and being in constant sealing engagement with both said surfaces (10A, 11B).

Abstract: The invention relates to a mold divider for fitting in a conventional slab mold (1) having laterally adjustable narrow-side parts for selective casting of several strands with changeable strand widths. The mold divider consists of a housing (3) fixedly securable relative to the mold (1), between the broad-side plates (2) and having bilaterally adjustable, in a broad-side direction of the mold (1), adjusting organs (4), with supporting plates (5) provided at their ends and with the narrow-side heat-exchanger plates (6) arranged thereon.

Abstract: A chill tube (1) for the continuous casting of metals has a double T-shaped cross section in beam blank format. Inner contour (3) defining the cross section of the cast billet is cooled by cooling water, which is guided through cooling channels (4) in tube wall (2). Cooling channels (4) have a round cross section when manufactured. Inner contour (3) has rounded transitions (6) between wall sections (9) bordering a flange region (7) and a crosspiece region (8). The distance (A) between two cooling channels (4) adjacent to each other in transitions (6) is smaller than distance (B) in the remaining wall sections (9).

Abstract: An ingot mold for continuous casting of metal strips or thin slabs has a funnel-shaped, charged are which is tapered to the format of the cast strand, and two ingot mold plates which are deformed in relation to each other and which have curved pouch-type broad side wall sections. The curvature of the curved pouch-type broad side wall sections is elliptical in the cross-section thereof.

Abstract: A liquid-cooled casting die for the continuous casting of thin steel slabs has a molding casting die body made of a material of high heat conductivity, such as copper or a copper alloy. Preferably the casting die body is made, in each case, of two broad-side walls, situated facing each other, and narrow-side walls limiting the width of the billet, the broadside walls forming a funnel-shaped pouring-in area. In order avoid the formation of cracks in the thermally and mechanically more stressed areas of the copper plate, cooling zones are arranged particularly in the bath surface area having higher surface-related heat flow.

Abstract: A chill tube made of copper for the continuous casting of metals has a multi-corner inner and outer cross section and a nominal wall thickness which amounts to 8% to 10% of the separation distance of the inner surfaces lying frontally opposite each other at the tube opening. The inner surfaces are placed indirectly under the heat-removing influence of a cooling medium suppliable from the outside to the tube wall. In the height range of the bath level of the liquid metal, the wall thickness is reduced over the entire circumference by 10% to 40% of the nominal wall thickness.

Abstract: A liquid-cooled mold for a continuous casting of metals, including mold plates made of copper or a copper alloy, which are connected respectively to an adapter plate or a cooling-water tank by clamping bolts. The mold is characterized in that the clamping bolts are fastened to plateau pedestals which project in an island-like manner from the cooling arrangement side of the mold plate, which jut at least partially into a cooling arrangement gap formed between the mold plate and the adapter plate or the cooling-water tank, respectively, and have a streamlined shape adjusted to the flow direction of the cooling arrangement.