摘要:
The invention relates to an insert element (17) for a gas lens (4) of a WIG/TIG welding torch (1), to a gas lens (4) for a WIG/TIG welding torch (1), and to a WIG/TIG welding torch (1). The aim of the invention is to improve the distribution of gas over the cross-section of the gas lens (4) or gas nozzle (9), with a gas lens which is as small as possible and consists of light components. To this end, an insert element (17) comprising a borehole (23) in the centre thereof for guiding an electrode (12) is provided. Fan-shaped flow elements (24) are formed around the borehole in such a way that they can twist in relation to the plane of the borehole (23), such that a through-flowing gas (7, 27) is radially deviated. The gas lens (4) consists of a base body (10) comprising a gas distribution channel (15) having at least one gas lens filter (20). Such an insert element (17) is arranged in the gas distribution channel (15) and a gas lens filter (20) is arranged downstream of the insert element (17), in the direction of the efflux of the gas.
摘要:
The invention relates to a heating element (25) for liquids to be vaporised as well as a burner (6) of a steam cutting device (1) and a burner (38) of a power-generating device, said element being designed as an induction heater (47) comprising one coil (25a). In order to improve vaporisation, the coil (25a) of the induction heater (47) is enclosed in a hybrid construction which is composed of a main part (31) with laterally extending webs (33), and which consists of an easily magnetisable material (35) and a thermally highly-conductive material, a covering element (32) consisting of nanocrystalline materials being arranged on said webs (33), and the easily magnetisable material (35) being designed to be installed on a thermally highly-conductive material (37) of a vaporiser (21).
摘要:
The invention relates to a securing element (30) arranged between a gas element (32) and a current element (33) of the plug-in element (28). A fixing element (34) is arranged in the coupling (29) of the torch handle and meshes with said securing element (30), and, for guiding over said fixing element (34) arranged in the coupling (29), the gas element (32) has a diameter smaller than those of the securing element (30) and of the current element (33). Said securing element (30) can be guided over the fixing element (34) using a flat area (35), while the gas element (32) is arranged in a gas bore hole (37) in the coupling (29) in a sealing manner. The position of the torch body (27) can be freely adjusted by means of a manual rotational movement, said fixing element (34) being guided in a circumferential groove (36) in said securing element (30).
摘要:
The invention relates to an insert element (17) for a gas lens (4) of a WIG/TIG welding torch (1), to a gas lens (4) for a WIG/TIG welding torch (1), and to a WIG/TIG welding torch (1). The aim of the invention is to improve the distribution of gas over the cross-section of the gas lens (4) or gas nozzle (9), with a gas lens which is as small as possible and consists of light components. To this end, an insert element (17) comprising a borehole (23) in the centre thereof for guiding an electrode (12) is provided. Fan-shaped flow elements (24) are formed around the borehole in such a way that they can twist in relation to the plane of the borehole (23), such that a through-flowing gas (7, 27) is radially deviated. The gas lens (4) consists of a base body (10) comprising a gas distribution channel (15) having at least one gas lens filter (20). Such an insert element (17) is arranged in the gas distribution channel (15) and a gas lens filter (20) is arranged downstream of the insert element (17), in the direction of the efflux of the gas.
摘要:
Die Erfindung betrifft einen WIG-Schweißbrenner (1) mit einem Brennerkopf (2) mit zumindest einer nichtabschmelzenden Elektrode (3) und zumindest einer Zuführeinrichtung (4) für einen abschmelzenden drahtförmigen Zusatzwerkstoff (5), wobei die Längsachse jeder Elektrode (3) und die Längsachse jedes drahtförmiger Zusatzwerkstoffs (5) einander in einem Tool Center Point (TCP) schneiden, und der Brennerkopf (2) verstellbar auf einer Halterung (6) angeordnet und in zumindest zwei verschiedenen Positionen bei gleichbleibendem Tool Center Point (TCP) fixierbar ist. Zur Erzielung eines kompakten Aufbaus und einer größeren Flexibilität beim Schweißen ist die Halterung (6) länglich und quasi V-förmig ausgebildet, und weist diese am vorderen Ende eine kreisförmige Führung (7) auf, in welcher Führung (7) ein mit dem Brennerkopf (2) verbundener Schlitten (8) anordenbar ist, sodass die Außenabmessungen des Schweißbrenners (1) bei einer Verstellung des Brennerkopfs (2) nicht wesentlich verändert werden.
摘要:
The invention relates to a securing element (30) arranged between a gas element (32) and a current element (33) of the plug-in element (28). A fixing element (34) is arranged in the coupling (29) of the torch handle and meshes with said securing element (30), and, for guiding over said fixing element (34) arranged in the coupling (29), the gas element (32) has a diameter smaller than those of the securing element (30) and of the current element (33). Said securing element (30) can be guided over the fixing element (34) using a flat area (35), while the gas element (32) is arranged in a gas bore hole (37) in the coupling (29) in a sealing manner. The position of the torch body (27) can be freely adjusted by means of a manual rotational movement, said fixing element (34) being guided in a circumferential groove (36) in said securing element (30).
摘要:
The invention describes a method of welding a workpiece (16) having a consumable welding wire (13) which is moved essentially in the direction of the workpiece (16) during a welding process by means of a wire feed unit (11), wherein a process for removing slag (42) at the end of the welding wire (13) is started and carried out. To provide a welding process which is not impaired by slag (42) possibly adhering to that end of the welding wire (13) which is to make contact and ensure reliable striking of the arc (15), provision is made for the welding current (I) to be reduced to a minimum at the start of the slag-removal process, and for the welding wire (13), during the slag-removal process, to be moved cyclically with a rapid recurring forward/backward movement by a predetermined displacement length in the direction of the workpiece (16) and by a smaller displacement distance away from the workpiece (16) again until a short circuit between the welding wire (13) and the workpiece (16) is detected by short-circuit monitoring, whereupon the slag-removal process is ended.