Abstract: A spray apparatus for cooling a metal strand in a continuous casting machine, wherein at least one multiple-nozzle head and at least one switching valve are provided, wherein the multiple-nozzle head has at least a first and a second nozzle, wherein the switching valve is arranged upstream of the multiple-nozzle head, and wherein the switching valve is flow-connected to all the second nozzles in the multiple-nozzle head, in order to enable or to shut off a supply of spray liquid to all the second nozzles.

Abstract: The invention relates to a spray apparatus for cooling a metal strand in a continuous casting machine, wherein at least one multiple-nozzle head and at least one switching valve are provided, wherein the multiple-nozzle head has at least a first and a second nozzle, wherein the switching valve is arranged upstream of the multiple-nozzle head, and wherein the switching valve is flow-connected to all the second nozzles in the multiple-nozzle head, in order to enable or to shut off a supply of spray liquid to all the second nozzles.

Abstract: A check valve for a spray nozzle including a tubular valve body, a shut-off member and a valve seat, wherein the shut-off member is mounted for movement at least in a longitudinal direction of the tubular valve body. The shut-off member is connected to the valve body by a corrugated tube disposed parallel to the longitudinal direction, wherein the shut-off member is biased toward the valve seat due to the spring effect of the corrugated tube. The check valve is suitable for use in, for example, descaling nozzles.

Abstract: A check valve for a spray nozzle including a tubular valve body, a shut-off member and a valve seat, wherein the shut-off member is mounted for movement at least in a longitudinal direction of the tubular valve body. The shut-off member is connected to the valve body by a corrugated tube disposed parallel to the longitudinal direction, wherein the shut-off member is biased toward the valve seat due to the spring effect of the corrugated tube. The check valve is suitable for use in, for example, descaling nozzles.

Abstract: The invention relates to a method for setting up a mobile machine (1), particularly an automatic concrete pump, a mobile crane or a movable elevating work platform. With such a method, the subsurface (28) of a site is analyzed for the properties and/or load-bearing capacity thereof before the machine (10) is positioned there and/or oriented and supported by means of flarable supporting legs (20, 24) in set-up positions (VR, VL, HR, HL) suitable according to the determined subsurface properties and load-bearing capacity. In order to determine an optimized set-up position for the supporting legs (20, 24), geodata (38) of a geographic environment that includes the site is read via a computer in a data memory (44) using a layer of subsurface data (40) that defines the subsurface properties and load-bearing capacity.

Abstract: The invention relates to a spray nozzle, particularly a high pressure nozzle, for descaling steel products, having a mouthpiece, which is provided with a discharge opening and a discharge chamber, which tapers towards the discharge opening. According to the invention the discharge opening spans a curved surface and a surface surrounding the discharge opening boundary at each point of said boundary strikes the discharge opening boundary at an angle between 65 and 95°, particularly 90° to the median longitudinal axis. Use e.g. for descaling nozzles.

Abstract: High pressure nozzle and method for the manufacture of a high pressure nozzle. The high pressure nozzle has a jet director located within a supply channel leading to a discharge opening. In an area directly surrounding the supply channel median longitudinal axis, the jet director has a free flow cross-section.

Abstract: The invention relates to a method for setting up a mobile machine (1), particularly an automatic concrete pump, a mobile crane or a movable elevating work platform. With such a method, the subsurface (28) of a site is analyzed for the properties and/or load-bearing capacity thereof before the machine (10) is positioned there and/or oriented and supported by means of flarable supporting legs (20, 24) in set-up positions (VR, VL, HR, HL) suitable according to the determined subsurface properties and load-bearing capacity. In order to determine an optimized set-up position for the supporting legs (20, 24), geodata (38) of a geographic environment that includes the site is read via a computer in a data memory (44) using a layer of subsurface data (40) that defines the subsurface properties and load-bearing capacity.

Abstract: High pressure nozzle and method for the manufacture of a high pressure nozzle. The high pressure nozzle has a jet director located within a supply channel leading to a discharge opening. In an area directly surrounding the supply channel median longitudinal axis, the jet director has a free flow cross-section.

Abstract: The invention relates to a spray nozzle, particularly a high pressure nozzle, for descaling steel products, having a mouthpiece, which is provided with a discharge opening and a discharge chamber, which tapers towards the discharge opening. According to the invention the discharge opening spans a curved surface and a surface surrounding the discharge opening boundary at each point of said boundary strikes the discharge opening boundary at an angle between 65 and 95°, particularly 90° to the median longitudinal axis. Use e.g. for descaling nozzles.

Abstract: 1. High pressure nozzle and method for the manufacture of a high pressure nozzle. 2.1. The invention relates to a high pressure nozzle with a jet director within a supply channel to a discharge opening. 2.2 According to the invention in an area directly surrounding the supply channel median longitudinal axis, the jet director has a free flow cross-section. 2.3. Use e.g. for high pressure nozzles for descaling steel products.

Abstract: The invention relates to a cone nozzle with a nozzle body having a swirl chamber (18), an inlet hole (22) arranged in a side wall of the swirl chamber (18) and an outlet hole (20) arranged in a first end wall of the swirl chamber (18). In accordance with the invention a rotation-symmetrical projection (30) or a rotation-symmetrical recess is arranged on a second end wall of the swirl chamber opposite the first end wall and at least two blind holes (32) are arranged in the first end wall adjacent to the outlet hole (20). Use for secondary cooling of continuous billet casting plant, for example.

Abstract: The invention relates to a cone nozzle with a nozzle body having a swirl chamber (18), an inlet hole (22) arranged in a side wall of the swirl chamber (18) and an outlet hole (20) arranged in a first end wall of the swirl chamber (18). In accordance with the invention a rotation-symmetrical projection (30) or a rotation-symmetrical recess is arranged on a second end wall of the swirl chamber opposite the first end wall and at least two blind holes (32) are arranged in the first end wall adjacent to the outlet hole (20). Use for secondary cooling of continuous billet casting plant, for example.

Abstract: A cooling arrangement for the rolling stand of a continuous casting system for heavy supports is provided with spraying nozzles which can be acted upon by cooling liquid and compressed air through supply pipes laid laterally in a longitudinal direction of the rolling stand. Only two supply pipes for cooling liquid and compressed air respectively are assigned to each side of the rolling stand. The supply pipes are laid parallel to one another and are equipped with connection flanges on which connection plates can be mounted in a simple manner and, in turn, are fixedly connected with spraying nozzles. This further development permits a simple mounting and demounting of the spraying nozzles and ensures a precise alignment of the spraying jets with respect to the billet to be processed.

Abstract: A cooling arrangement for the rolling stand of a continuous casting system for heavy supports is provided with spraying nozzles which can be acted upon by cooling liquid and compressed air through supply pipes laid laterally in a longitudinal direction of the rolling stand. Only two supply pipes for cooling liquid and compressed air respectively are assigned to each side of the rolling stand. The supply pipes are laid parallel to one another and are equipped with connection flanges on which connection plates can be mounted in a simple manner and, in turn, are fixedly connected with spraying nozzles. This further development permits a simple mounting and demounting of the spraying nozzles and ensures a precise alignment of the spraying jets with respect to the billet to be processed.