公开(公告)号：EP2531318A1

公开(公告)日：2012-12-12

申请号：EP11717983.8

申请日：2011-04-19

申请人： GeGa Lotz GmbH

发明人： DEICA, Alexander ,  BUHR, Wigbert

IPC分类号： B23K7/10 ,  B23K7/00 ,  F23D14/46 ,  B23K9/013 ,  B23K26/14

CPC分类号： B23K7/10 ,  B23K7/008 ,  B23K9/013 ,  B23K2201/18 ,  B23K2203/04

摘要： The invention relates to a method for detecting the wear of a cutting nozzle (2) on a cutting torch (1) for cutting steel workpieces, in particular slabs, blocks, and billets. In the supply line (9) of the hot-gas connection (3) to the cutting torch (1), a branch line (16) branches off. A neutral medium is blown at a certain pressure into the branch line and through the cutting nozzle (2) after the media valves (6, 7, 8) for heating gas, cutting oxygen, and heating oxygen have been closed. Said process is performed once when a new cutting nozzle (2) is installed in order to calibrate the new cutting nozzle. Thereafter, said process is performed again at certain intervals, which depend on the use of the cutting nozzle (2), in order to determine and store the wear state of the cutting nozzle (2) and to produce an optical and/or acoustic signal when a predetermined maximum permissible quantity deviation of the blown-in medium is exceeded.

公开(公告)号：EP2625463A1

公开(公告)日：2013-08-14

申请号：EP11718956.3

申请日：2011-03-29

申请人： GeGa Lotz GmbH

发明人： DEICA, Alexander ,  BUHR, Wigbert

IPC分类号： F23D14/54

CPC分类号： F23D14/54

摘要： A heavy cutting nozzle (1) for cutting workpieces of steel and workpieces (200) of iron alloys, particularly slabs, ingots and billets, has a nozzle body (2) with a thread (4) for fastening to a cutting torch (100). The heavy cutting nozzle (1) also comprises a centrally arranged cutting oxygen channel (5), a multiplicity of heating gas channels (10) arranged concentrically thereto on a specific inner pitch circle (10.1) and a multiplicity of heating oxygen channels (11) arranged concentrically thereto on a further middle pitch circle (11.1), wherein the outflow openings of the media channels (5, 10, 11) open out in a clearance (7) enclosed by the nozzle body (2). The clearance (7) enclosed by the nozzle body (2) is formed by the outflow openings of the media channels (5, 10, 11) for cutting oxygen, heating oxygen and heating gas in an angular, conical or approximately semicircular manner in relation to the outlet end thereof and in this way has the effect that the media flowing out are diverted at the inclined or curved outlet surfaces (F) towards the centre of the nozzle, and swirl with the surrounding air at a further distance (B) away from the heavy cutting nozzle (1) outside the nozzle body (2).

公开(公告)号：EP0354350B1

公开(公告)日：1993-11-10

申请号：EP89112423.2

申请日：1989-07-07

申请人： GeGa Lotz GmbH

发明人： Grohmann, Paul

IPC分类号： B23K7/00

CPC分类号： B23K7/00

公开(公告)号：EP2782699A1

公开(公告)日：2014-10-01

申请号：EP11790761.8

申请日：2011-11-25

申请人： GeGa Lotz GmbH

发明人： DEICA, Alexander ,  BUHR, Wigbert

IPC分类号： B23K7/10 ,  F23D14/54 ,  F23D14/58

CPC分类号： B23K7/00 ,  B23K7/10 ,  F23D14/54 ,  F23D14/58

摘要： The invention relates to a nozzle system (10) with a nozzle (1) for a cutting torch (3) for autogenous torch cutting, comprising a nozzle body (2) with media channels for cutting oxygen, heating oxygen and heating gas in order to generate a primary flow (4). The nozzle body (2) is surrounded by a sleeve-like pipe jacket (5) in order to significantly reduce the noise during torch-cutting. The inner side of the pipe jacket (5) has free spaces (6) longitudinally aligned towards the outer surface of the nozzle body (2) for drawing in outside air by means of the suction effect of the torch-cutting media so as to generate a secondary flow (7).

公开(公告)号：EP2531318B1

公开(公告)日：2014-09-24

申请号：EP11717983.8

申请日：2011-04-19

申请人： GeGa Lotz GmbH

发明人： DEICA, Alexander ,  BUHR, Wigbert

IPC分类号： B23K7/10 ,  B23K7/00 ,  F23D14/46 ,  B23K9/013 ,  B23K26/14

CPC分类号： B23K7/10 ,  B23K7/008 ,  B23K9/013 ,  B23K2201/18 ,  B23K2203/04