System capable of controlling CO2 welding spatter ratio through applied magnetic field device
A technology of external magnetic field and device control, applied in welding equipment, welding accessories, welding protection devices, etc., can solve the problems of arc stability and welding process influence, welding material loss, increase welding cleaning, etc., to reduce short-circuit spatter, short-circuit The effect of shortening the time and accelerating the melting speed
Inactive Publication Date: 2016-02-17
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology
[0002] During the welding process, a large amount of spatter causes the loss of welding materials, deteriorates the operating environment, increases welding cleaning, and seriously affects the stability of the arc and the welding process.
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[0021] Combined with the accompanying drawings below, such as figure 1 As shown, an external magnetic field device controls CO 2 The system of welding spatter rate mainly includes external magnetic field device and CO 2 Welding system; the external magnetic field device is composed of a magnetic control power supply 1, a sliding rheostat 2, and an excitation coil 3; the CO2 welding system is composed of a welding torch, a welding wire 6, a wire feeding mechanism 7, a welding power source 8, a workbench 9, and a gas circuit system 10 The welding torch includes a conductive tip 4 and a nozzle 5; it is characterized in that: a magnetically controlled voltage stabilized power supply 1, a sliding rheostat 2, and an excitation coil 3 are connected in series to form a circuit, and the excitation coil 3 is set on the nozzle 5 and is rigidly fixed with the welding torch, and remains the same The contact tip 4 is connected to one end of the welding power source 8, and the other end of ...
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Abstract
The invention discloses a system capable of controlling CO2 welding spatter ratio through an applied magnetic field device. According to the system, an applied magnetic field generation device generates a longitudinal magnetic field to act on the CO2 welding process, and an applied DC longitudinal magnetic field is utilized to control a CO2 welding arc so as to change the moving trajectories of charged particles in the welding arc, so that the electrical and thermophysical properties of the welding arc are changed, and the droplet transferring characteristics in the welding arc are changed, that is the droplet transferring frequency is increased, the short circuit peak current and the short-circuit current during the initial stage of short circuit are decreased, energy accumulation during the last phase of short circuit is decreased, and spatter and electric explosion spatter during the initial stage of short circuit are decreased to control the spatter ratio during the CO2 welding process. Tests indicate that the CO2 welding spatter ratio is remarkably decreased within a certain magnetic field intensity range; a corresponding best match value of the applied magnetic field intensity is provided for each CO2 welding process specification.
Description
technical field [0001] The invention relates to a method for using an external magnetic field to act on short-circuit transition CO 2 Welding process, to realize the control of welding spatter rate, specifically an external magnetic field device to control CO 2 A system for welding spatter rates. Background technique [0002] During the welding process, a large amount of spatter causes the loss of welding materials, deteriorates the operating environment, increases welding cleaning, and seriously affects the stability of the arc and the welding process. Therefore, it is of great practical significance to conduct in-depth research and effective control on welding spatter rate. Contents of the invention [0003] The object of the present invention is to propose an external magnetic field device to control CO 2 The system of welding spatter rate, which acts on the short-circuit transition CO through the external magnetic field generating device 2 Welding process, so as to...
Claims
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Login to View More IPC IPC(8): B23K9/32B23K9/08
CPCB23K9/321B23K9/08
Inventor 江淑园韩琦
Owner NANCHANG HANGKONG UNIVERSITY