4results about How to "Improved arc stability" patented technology

The application provides an acid core wire and a preparation method and application thereof, and particularly relates to the technical field of welding materials. The core wire comprises a steel belt sheath and a core filled in the steel belt sheath. The core comprises the following components in percentage of mass: 35-50% of rutile, 2.5-5% of zircon sand, 2.5-5% of potassium feldspar, 1.5-3% of potassium fluozirconate, 1.5-3% of quartz, 15-20% of metallic manganese, 3-5% of ferrosilicon, 15-20% of nickel powder, 1-2% of cobalt powder, 1-2% of molybdenum powder, 1-2% of aluminum-zirconium alloy, 1.5-3.5% of magnesium powder, 1-2% of perovskite, and the rest is atomized iron powder. The acid core wire has good welding process, good arc stability, less spatter, good appearance of weld formation, good deslagging property, high deposition rate and deposition rate, and the weld has the characteristics of high strength, high low-temperature impact toughness and corrosion resistance, and can meet the use requirement of high-strength Q690 rack steel.

This application provides a welding control method, apparatus, electronic terminal, and computer-readable storage medium. The welding control method includes: detecting welding information at the current moment during the welding process to obtain parameter information; determining the welding stage of the welding process based on the parameter information at the current moment; the welding process includes multiple welding cycles; the welding cycle includes a droplet formation stage and a spray transition stage; determining welding parameters according to the parameter information at the current moment and preset variation parameters corresponding to the welding stage at the current moment; the preset variation parameters include voltage change rate and current change rate; and performing welding based on the welding parameters. This application determines welding parameters by using the parameter information at the current moment and the preset variation parameters corresponding to the welding stage at the current moment, so as to control welding based on the corresponding preset variation parameters at different welding stages, thereby reducing spatter during welding.

This invention relates to an arc-extinguishing control method, a welding power source, a welding system, and a recording medium storing a program. The ball removal control period during the anti-sticking phase of the arc-extinguishing control method begins immediately after the welding start signal is switched off or after a certain period from the switch, and includes the following steps: Step S1, immediately after the welding start signal is switched off, changing a first wire feed rate setting value Fs, which is the wire feed rate setting value for the actual welding, to an arbitrary second wire feed rate setting value Fsa; Step S2, at the start of the ball removal control period, allowing the welding current to recur for a non-suppressed current period T. IP and current suppression period T IB Step S3: During ball removal control, perform at least one of droplet detachment detection monitoring and short-circuit detection monitoring, during current suppression period T. IB The feed rate is reduced if either droplet detachment or a short circuit is detected. Stable arc termination control is achieved regardless of the welding method.

This invention relates to the field of aluminum alloy welding technology, specifically a dual-gun synchronous magnetron welding process for long aluminum alloy vehicle body components. The process includes setting a first GTAW welding torch on the front side of the workpiece and a second GTAW welding torch on the back side, with the tungsten electrode tips of the two torches offset along the weld direction. The first GTAW welding torch is equipped with a first magnetron coil, and the second GTAW welding torch is equipped with a second magnetron coil. The first and second alternating magnetic fields operate in opposite phases. This invention controls the phase relationship of the two alternating magnetic fields, causing the front and back magnetic fields to operate in opposite phases. This allows the two magnetic fields to act at staggered times, avoiding the superposition and enhancement effect of magnetic fields. When using the opposite-phase scheme, the front magnetic field promotes the front arc to swing to the left during the positive half-cycle, while the back magnetic field causes the back arc to swing to the corresponding side during the negative half-cycle. The two arcs are staggered in time, and their respective magnetic lines of force do not superimpose in the same direction, thus suppressing arc interference.