Gas purging element (10) for metallurgical applications, comprising the following features in its mounted state: a ceramic refractory body (10, 30) with a lower end and an upper end, the upper end features an upper front surface, the lower end features a lower front surface (12), a depression (20) extends from the lower front surface (12) into the lower end of the ceramic refractory body (10), the depression (20) comprises a first part (16, 16, 16) of a detachable, form-fit connection to a gas connection element (50), a fluidic connection for a treating gas through at least one gas permeable section (30) of the ceramic refractory body (10) is provided between the depression (20) and the upper front surface.

A method for continuous thin strip casting comprises: introducing molten steel through a long nozzle into a tundish from a ladle, the tundish is one strand tundish, and the molten steel flows below a weir, then passes a first dam and enters a channel with an induction heating device, and the heated molten steel then flows out from an outlet at the other side of the tundish to a nozzle also with an induction heating device for casting. The distances between the weirs of the tundish and the channel have optimal distance ranges. The present invention can improve the casting stability and the quality of the casting strip.

Refractory ceramic gas purging element, comprising: a refractory ceramic body, a chamber is arranged at the first end (10u) of the refractory ceramic body (10), which chamber extends over at least 50% of the cross section of the refractory ceramic body at its first end, a gas feeding line enters into said chamber, at a distance to said refractory ceramic body, at a section towards the refractory ceramic body the chamber is at least partially permeable to gas, the chamber comprises at least one plate, which is freely moveable in an axial direction of the gas purging element between a first end position and a second end position, the plate is dimensioned, shaped and placed in the chamber such that a gas flow from the gas feeding line through said chamber up to the first end is even secured when the plate is in its second end position.

Provided are a method and a refining device for producing molten steel of outstanding cleanliness, and more particularly provides a method and device for refining inclusions by forming droplets from molten steel and dropping same into slag during pre-processing in a continuous casting process in a steel-making process. Also, provided is a method for producing high cleanliness molten steel comprising a molten-steel supply device for supplying molten steel and a molten-steel refining device for containing and refining molten steel poured into the molten-steel supply device, wherein the method comprises: a molten-steel pouring step in which molten steel is poured from the molten-steel supply device into the molten-steel refining device; a droplet-forming step in which the molten steel which has been poured in is formed into droplets in the molten-steel refining device; a slag-pass-through step in which the molten steel which has been formed into droplets is dropped so as to pass through slag; and an inclusion-removing step in which residual inclusions in the molten steel, which has been formed into droplets, are removed while passing through the slag.

Provided are a method and a refining device for producing molten steel of outstanding cleanliness, and more particularly provides a method and device for refining inclusions by forming droplets from molten steel and dropping same into slag during pre-processing in a continuous casting process in a steel-making process. Also, provided is a method for producing high cleanliness molten steel comprising a molten-steel supply device for supplying molten steel and a molten-steel refining device for containing and refining molten steel poured into the molten-steel supply device, wherein the method comprises: a molten-steel pouring step in which molten steel is poured from the molten-steel supply device into the molten-steel refining device; a droplet-forming step in which the molten steel which has been poured in is formed into droplets in the molten-steel refining device; a slag-pass-through step in which the molten steel which has been formed into droplets is dropped so as to pass through slag; and an inclusion-removing step in which residual inclusions in the molten steel, which has been formed into droplets, are removed while passing through the slag.

In a device for fastening a perforated block (1) to a metal melt container, the perforated block (1) can be fastened by means of at least one clamping wedge (36) which can be inserted transversely with respect to its through opening (D) and which has a clamping jaw (35) coupled thereto, wherein this clamping jaw (35) acts on a clamping surface (13) formed on the circumferential surface of the perforated block (1). The respective clamping wedge (36) is guided in a carrier plate (33) so as to be displaceable in its longitudinal extent and transversely with respect thereto, while the clamping jaw (35) coupled thereto can be moved in this transverse direction. Consequently, the perforated block can be fastened with precise positioning in the carrier plate (33) in a simple manner.

In a device for fastening a perforated block (1) to a metal melt container, the perforated block (1) can be fastened by means of at least one clamping wedge (36) which can be inserted transversely with respect to its through opening (D) and which has a clamping jaw (35) coupled thereto, wherein this clamping jaw (35) acts on a clamping surface (13) formed on the circumferential surface of the perforated block (1). The respective clamping wedge (36) is guided in a carrier plate (33) so as to be displaceable in its longitudinal extent and transversely with respect thereto, while the clamping jaw (35) coupled thereto can be moved in this transverse direction. Consequently, the perforated block can be fastened with precise positioning in the carrier plate (33) in a simple manner.

A method of pouring molten metal from a molten metal holding and pouring box with a rectangular-shaped upper section and a pyramidal-shaped lower section provides a relatively constant flow of molten metal being poured from the box through each of two bottom nozzles into two separate foundry molds at the same time.

A method of pouring molten metal from a molten metal holding and pouring box with a rectangular-shaped upper section and a pyramidal-shaped lower section provides a relatively constant flow of molten metal being poured from the box through each of two bottom nozzles into two separate foundry molds at the same time.

A melting unit for melting down casting materials and a method for producing molten material for casting.