摘要:
The invention relates to a device for conveying metal strips in a floating manner by means of a gas, comprising a plurality of heat treatment units (1, 1'), each of which has a lower and upper jet nozzle system (4A, 4B), a lower and upper flow channel system, at least one ventilator (5A, 5A', 5B, 5B'), and multiple jet tubes (6A, 6B). The invention also relates to a method for operating such a device. The aim of the invention is to develop the device or the method such that the energy efficiency, the heat transfer, and thus the throughput performance as well as the product quality are improved. This is achieved in that each flow channel system has at least one depression (11A, 11B) transverse to the strip direction in the direction of the jet nozzle system (4A, 4B) in order to receive at least one jet tube (6A, 6B).
摘要:
Eine Vorrichtung zur Wärmebehandlung metallischer Bänder im Durchlauf, insbesondere zum Betrieb unter Schutzgas geringer Dichte, weist den Bandverlauf stabilisierende Stabilisierungsdüsensysteme auf, die im Erwärmungsteil und zumindest im ersten Teil der Abkühlung den Wärmeübergang überwiegend mit erzwungener Konvektion bewirken. Das Band wird in dem durch Rollen eingegrenzten Behandlungsteil berührungsfrei geführt. Der Bandverlauf weist in dem Behandlungsbereich, von oben betrachtet, zumindest in einem Teilbereich eine konkave Krümmung auf. Der Bereich dieser konkaven Krümmung kann in einem Fluid erfolgen, das von dem Fluid, mit dem das Band im Erwärmungsteil und zumindest im ersten Teil des Kühlbereichs beblasen wird, unterschiedlich ist.
摘要:
An oven 5 is disclosed as having a plurality of chambers 34 which are sealed from the ambient atmosphere, and to which gas, heated to a high temperature outside the chambers, is cirulated via line 13 to each of the chambers for admixture with gas (coming from line 16) which is cool compared to the high temperature gas, to produce in the chambers a mixture of hot and cool gas at a predetermined temperature. The hot gas is circulated to the chambers at a certain desired pressure, and the cool gas is circulated to the chambers at a certain rate of flow. Gas is exhausted from the oven via line 17 also at a fixed rate of flow. The gas pressure in the first chamber 31 to be encountered by an element 6 passing through the oven 5 is monitored at 28 and triggers an adjustment of damper 21 so changing the flow of cool gas when the pressure varies from a desired norm. This change in flow of cool gas influences the temperature which is also monitored at 20. A change in this temperature produces a corresponding change in the mixture of hot and cool gas to return the oven temperature to the desired level.
摘要:
The invention relates to a device for continuous treatment of a metal strip (1), in particular a metal strip consisting of aluminum or an aluminum alloy, or consisting of a non-ferrous metal or a non-ferrous metal alloy, said device comprising at least one temperature control device (2) through which the metal strip (1) is guided in a floating manner, and comprising at least one strip position regulation unit (7), by means of which the position of the metal strip (1) can be controlled or regulated on the belt movement plane (E) and transversely to the strip running direction (B), wherein the temperature control device (2) has at least one entry-side heating section (3) and an exit-side cooling section (4). The invention is characterised in that the strip position regulation unit (7) that works in a contactless manner has at least one contactless strip position detection element (12) and at least one linear motor (13) and is arranged within the heating section (3) or between the heating section (3) and the cooling section (4).
摘要:
Die Erfindung betrifft eine Endlosfördereinrichtung zum Transportieren von Gegenständen, mit einer Antriebseinrichtung zum Antreiben zumindest eines Förderkörpers (4), mit dem zumindest einen Förderkörper (4), der ausgestaltet ist, zumindest einen Fördergegenstand (2) mitzunehmen, und mit einer Unterstützungseinrichtung zur Unterstützung des zumindest einen Förderkörpers (4), wobei die Unterstützungseinrichtung zumindest einen Druckkörper (3) aufweist, der ausgestaltet ist, ein Unterstützungselement (5), d. h. den zumindest einen Förderkörper (4) und/oder ein mit dem zumindest einen Förderkörper verbundenes erstes Element, durch ein unter Druck aus dem Druckkörper (3) ausströmendes Fluid zu unterstützen. Durch diese Anordnung wird ein möglichst verschleißfreier Transport von Fördergegenständen erlaubt.
摘要:
An oven 5 is disclosed as having a plurality of chambers 34 which are sealed from the ambient atmosphere, and to which gas, heated to a high temperature outside the chambers, is cirulated via line 13 to each of the chambers for admixture with gas (coming from line 16) which is cool compared to the high temperature gas, to produce in the chambers a mixture of hot and cool gas at a predetermined temperature. The hot gas is circulated to the chambers at a certain desired pressure, and the cool gas is circulated to the chambers at a certain rate of flow. Gas is exhausted from the oven via line 17 also at a fixed rate of flow. The gas pressure in the first chamber 31 to be encountered by an element 6 passing through the oven 5 is monitored at 28 and triggers an adjustment of damper 21 so changing the flow of cool gas when the pressure varies from a desired norm. This change in flow of cool gas influences the temperature which is also monitored at 20. A change in this temperature produces a corresponding change in the mixture of hot and cool gas to return the oven temperature to the desired level.