SMS Concast AG

Switzerland

SMS Concast AG

Switzerland

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Patent
Sms Concast Ag | Date: 2013-08-13

The invention relates to a spray nozzle device for spraying a cast strand or similar metallurgical products with a misty air/water mixture in the form of a mist for uniformly cooling the cast strand. The air/water mixture is produced in a mixing chamber (2) of the spraying device. Said mixing chamber acts as a diffusor and is provided with an air inlet (3), a water inlet (4), and a nozzle outlet (5) oriented approximately in alignment with the air inlet. The air inlet (3) is arranged in an air inlet nozzle (6), the tip (7) of which protrudes into the upper region of the mixing chamber and preferably has a plurality of air outlet holes (9) there, which air outlet holes are oriented perpendicular to the longitudinal axis of the mixing chamber; Water enters near the tip (7) through at least one water outlet hole (11), which is oriented perpendicular to the longitudinal axis and which is placed in such a way that the water jet exiting the water outlet hole flows past the air outlet holes (9). The spray nozzle according to the invention is characterized in that the air flow or the air pressure and the water flow or the water pressure do not influence each other.


Patent
Sms Concast Ag | Date: 2010-09-03

The invention concerns a roller and a roller arrangement for a continuous casting installation comprising two bearing blocks and the roller carried by the bearing blocks, wherein the roller has a rotationally symmetrical roller casing and wherein the roller bearing is arranged within the roller casing.


The invention relates to an apparatus used for detecting and displaying varying levels of a metal melt, for example in a continuous casting mould, a tundish, an ingot or the like.


A refractory casting tube for a mould for continuously casting molten metal is provided with a top part (33) and a bottom part (35) which dips into the molten metal in the inner mould space (6) during the casting. A refractory deflection element (35) is integrated in the funnel-shaped or similarly shaped inlet (34) of the top part (33) and is shaped in such a manner that a fluid-dynamic dissipation is generated on the molten metal (21) during casting in said inlet (4, 34). The molten steel therefore flows into the mould roughly as a uniform flow with a homogeneous and stable distribution.


The invention relates to a mold for the continuous casting of preliminary sections, in particular double T-shaped preliminary sections, such as beam blank sections or similar sections, wherein all the interior walls (7a to 7i) of the mold in the mold passage (8) have a tapered course (9 to 12) running linearly from top to bottom, said tapered course being dimensioned depending on the degree of shrinkage of the cast strand and produced by machining the interior walls (7a to 7i). In this manner, it is possible to optimally adjust the diameter of the mold to the shrinkage process of the cast strand in the region of the mold passage, even for large-sized sections.


An apparatus for starting the casting of a continuous casting system has a mould (2) and a strand guide (10; 10) comprising drive and guide rollers (11, 12; 11, 12). Moreover, a dummy bar (22) that can be introduced into the mould (2) by the strand guide (10; 10) and be withdrawn from said mould is provided. A safety device (20; 20) for the dummy bar (22) has an element (25) that can be engaged, with form fit, with the dummy bar (22) and limiting the speed of the cold bar (22). It is thus guaranteed that a predetermined maximum strand speed can not be exceeded and that the dummy bar does not slide through.


The invention relates to a guide roller comprising a bearing journal (13) at each of two ends. Each bearing journal is provided with a plain bearing (14), which is designed as a hollow journal, and can be connected to the coolant supply line in order to conduct a coolant through the hollow journal into the coolant channel (12) or to conduct the coolant out of the coolant channel. The plain bearing (14) is lubricated by the coolant that is conducted through the bearing journal (13) designed as a hollow journal. A roller assembly for a strand casting system is provided with a plurality of said guide rollers (1). The guide rollers are arranged at an axial distance from each other along a strand (2) produced by the strand casting system and are each rotatably supported in a respective bearing mount (3). Each bearing mount is arranged on at least one frame part (4, 5) in a preloaded manner. The bearing mounts (3) are supported on the frame parts (4, 5) so as to be self-setting by means of elastically pliable connecting means (6). Even if the strand cross-section of the produced strand changes during the operating duration or due to changed process parameters, the originally set pressing force of the guide rollers remains substantially unchanged.


The invention relates to an apparatus used for detecting and displaying varying levels of a metal melt, for example in a continuous casting mould, a tundish, an ingot or the like.


Continuous casting moulds used in automated installations casting metal melts into strands require comprehensive, reliable real-time monitoring. Currently used systems are susceptible to damage and limited to just a few sensors, as arrangements involving a higher number of sensors have proven impractical due to the substantial effort they cause when exchanging a mould. To overcome this obstacle it is suggested to use wirelessly interrogable passive surface acoustic wave (SAW) sensors for monitoring of physical parameters in continuous casting moulds, and install at least one wireless link section in the signal path between SAW sensors and their reader devices. Continuous casting moulds thus become easily exchangeable with their sensors installed, making it industrially practicable to equip continuous casting moulds with a significantly higher number of sensors than previously feasible.


Continuous casting moulds used in automated installations casting metal melts into strands require comprehensive, reliable real-time monitoring. Currently used systems are susceptible to damage and limited to just a few sensors, as arrangements involving a higher number of sensors have proven impractical due to the substantial effort they cause when exchanging a mould. To overcome this obstacle it is suggested to use wirelessly interrogable passive surface acoustic wave (SAW) sensors for monitoring of physical parameters in continuous casting moulds, and install at least one wireless link section in the signal path between SAW sensors and their reader devices. Continuous casting moulds thus become easily exchangeable with their sensors installed, making it industrially practicable to equip continuous casting moulds with a significantly higher number of sensors than previously feasible.

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