摘要:
A device for handling and/or transporting work rolls and/or support rolls of a roll stand, by which the work rolls and/or support rolls can be brought from the roll stand into a roll workshop by a locomotive movable on a track. In order to be able to handle and transport different rolls using just one locomotive, without complicated coupling mechanisms, at least two tracks disposed at different heights are provided, on which a roll can be moved by the locomotive, and a lifting table is available, which is intended and suitable for raising or lowering the locomotive to one of the at least two different heights in order to bring it onto the respective track.
摘要:
The invention relates to a device (1) for handling and/or transporting work rolls (2, 3) and/or support rolls (4, 5) of a roll stand (6), by which the work rolls (2, 3) and/or support rolls (4, 5) can be brought from the roll stand (6) into a roll workshop (10) by means of a locomotive (9) movable on a track (7, 8). In order to be able to handle and transport different rolls using just one locomotive, without complicated coupling mechanisms, according to the invention at least two tracks (7, 8) disposed at different heights (h1, h2) are provided, on which a roll (2, 3, 4, 5) can be moved by means of the locomotive (9), and a lifting table (11) is available, which is intended and suitable for raising or lowering the locomotive (9) to one of the at least two different heights (h1, h2) in order to bring it onto the respective track (7, 8).
摘要:
Disclosed is a device (1) for cooling metal sheets and strips during the production thereof, particularly following rolling thereof. Said device (1) comprises a feeding duct (2) for delivering a cooling medium, especially water. Said feeding duct (2) is connected to a housing (3) inside which two nozzle rails (4, 5) are disposed so as to be movable relative to one another. Said two nozzle rails (4, 5) can be arranged at a short distance (a) from each other, thereby forming a nozzle gap (6) for the cooling medium, said nozzle gap (6) having a rectangular cross section. At least one element (8) that forms a barrier for the cooling medium is placed in the housing (3) between the point of entrance (7) of the cooling medium into the housing (3) and the nozzle gap (6).
摘要:
The invention relates to a method for producing flat products of steel from continuously cast slabs having a large or medium thickness or from thin bars, which are compressed and subsequently run through a blooming train and a finishing train. The invention is characterized in that the flat products are descaled on their strip edges prior to compression. The method is carried out in a rolling train which comprises at least a first compression device (1), a blooming train and a finishing train. The rolling train is characterized in that a first descaling device (2) for descaling the strip edges of the flat products is arranged upstream of the first compression device (1).
摘要:
Mercury is removed from solutions contaminated with mercury, the solution contaminated with mercury being introduced into a distillation column above the column bottom, solvent being distilled off and solution depleted in mercury being stripped off at the column bottom.
摘要:
The invention relates to a process for preparing alkali metal alkoxides by reacting alkali metals with alcohols in the presence of a catalyst, preferably a transition metal salt and especially iron(III) chloride.