摘要:
A welding wire feeder includes a wire feed drive and wire feed control circuitry coupled to the wire feed drive to control the drive of welding wire towards the welding application. The welding wire feeder further includes power conversion circuitry configured to receive input power and to convert the input power to welding output suitable for a welding application, output voltage sensors configured to measure output voltage, output current sensors configured to measure output current, and control circuitry coupled to the power conversion circuitry and to the output voltage and current sensors. The power conversion circuitry includes power storage circuitry configured to store energy and to discharge at least a portion of the stored energy during an overdraw event. The control circuitry is configured to control the output current during the overdraw event to maintain a stored energy value of the power storage circuitry greater than a desired minimum energy value.
摘要:
Vorrichtung zum Erzeugen von Lichtbogenstrom für Hubzündungs-Lichtbogenschweißverfahren mit mindestens einem Kondensator (2.1) als Energiespeicher für mindestens einen Schweißvorgang, dem wenigstens ein Konverter (3.1), bestehend aus einem getakteten Schaltelement (33) mit einer Stromspeicherdrossel (34) und einem Glättungskondensator (35), nachgeschaltet ist, der die im Kondensator (2.1) gespeicherte Energie in eine Spannung am Glättungskondensator (35) so umwandelt, dass dadurch ein geeigneter Lichtbogenstrom zwischen den Schweißelementen (8) und (9) fließt.
摘要:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Schweißen, insbesondere zum Herstellen kleiner und kleinster Schweißpunkte. Bei dem Verfahren wird ein Schweißhandstück mit einer Schweißelektrode (4) an das zu schweißende Gut herangeführt und der Schweißvorgang durch Fluss eines elektrischen Stromes durchgeführt. Zum präzisen Schweißen ist erfindungsgemäß vorgesehen, dass das Verfahren folgende Schritte aufweist: a) Aufsetzen der Schweißelektrode (4) auf das zu schweißende Gut bei abgeschaltetem Schweißstrom; b) Einschalten des Schweißstromes; c) Zurückziehen der Schweißelektrode (4) um einen vorbestimmten Weg durch Aktivieren eines Mittels (2, 2a, 2b), das eine translatorische Verschiebung der Schweißelektrode (4) veranlasst, um durch Schaffung eines Abstandes (15) zwischen Schweißelektrode (4) und zu schweißendem Gut einen Lichtbogen zu erzeugen; d) Durchführung des Schweißvorganges unter Nutzung der vom Lichtbogen erzeugten Temperaturerhöhung.
摘要:
A welding wire feeder includes a wire feed drive and wire feed control circuitry coupled to the wire feed drive to control the drive of welding wire towards the welding application. The welding wire feeder further includes power conversion circuitry configured to receive input power and to convert the input power to welding output suitable for a welding application, output voltage sensors configured to measure output voltage, output current sensors configured to measure output current, and control circuitry coupled to the power conversion circuitry and to the output voltage and current sensors. The power conversion circuitry includes power storage circuitry configured to store energy and to discharge at least a portion of the stored energy during an overdraw event. The control circuitry is configured to control the output current during the overdraw event to maintain a stored energy value of the power storage circuitry greater than a desired minimum energy value.
摘要:
A welding system includes an engine configured to drive a generator to produce a first power output. The welding system also includes a battery configured to discharge energy to produce a second power output. In addition, the welding system includes an auxiliary charger coupled to the battery and the generator. The auxiliary charger is configured to maintain a float charge of the battery when the first and second power outputs are reduced from a base load.
摘要:
A welding-type power supply includes a battery, which may be removable, a battery charger connected to the battery, a weld converter connected to the battery and having a welding-type power output, and a controller connected to a control input of the weld converter and having a weld power control module. The controller may have an ac auxiliary control module for controlling an auxiliary output of the power supply. The controller may include a battery charging control module, and may have one or more charging schedules, and/or data for stored charge, thermal information, expected life of the battery, maximum amp-hour charge for the battery, maximum charging current and/or feedback. The battery charging schedules may include at least 3 phases, such as a phase of increasing voltage and a phase of decreasing current, a substantially constant power phase. A generator may provide power to the battery, charger, and/or the weld.