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Inverse direct-current arc welding machine for welding copper welding rods

A technology of inverter welding machine and copper welding rod, which is applied in welding equipment, arc welding equipment, manufacturing tools, etc., and can solve problems such as broken arc, weak welding, poor weldability, etc.

Inactive Publication Date: 2010-10-06
SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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  • Abstract
  • Description
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Problems solved by technology

[0003] The purpose of the present invention is to provide an improved technology for welding copper electrodes applied to inverter direct current arc welding machines, so as to overcome poor weldability, broken arc, weak welding, poor forming and spatter when using copper electrodes to weld copper materials larger defect

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  • Inverse direct-current arc welding machine for welding copper welding rods
  • Inverse direct-current arc welding machine for welding copper welding rods

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Embodiment Construction

[0007] Such as figure 1 As shown in the block diagram of the circuit principle of the present invention, the circuits in the rectification and filtering stage and the inverter stage still adopt the original circuit working principle. First, the alternating current through the universal switch is rectified through a relay to the rectifier bridge to become a fluctuating direct current. The filter circuit composed of inductance and capacitance filters into a relatively stable direct current. Then, through the bridge inverter composed of IGBT tubes, the direct current is converted into a medium-high frequency square wave alternating current, and then isolated and transformed by a power transformer, rectified by a high-frequency rectifier tube and then converted into the required direct current, and passed through an output inductor filter , Output stable direct current for welding. At the same time as the output, the original sampling power element is replaced by the LA series hi...

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Abstract

The invention relates to an inverse direct-current arc welding machine for welding copper welding rods. The inverse direct-current arc welding machine changes the original sampling sensor in the main circuit of the conventional inverse direct-current arc welding machine and adopts a high-speed Hall sensor to sample and output current-voltage signals; in a characteristic control circuit, the high-speed operational amplifier is newly added to form a dissolved drip filter control circuit and an arc-voltage control circuit; and the inverse direct-current arc welding machine improves the dynamic response property of the whole circuit and output energy of a welding machine, and better solves the defects arc breaking, infirm welding and the like.

Description

technical field [0001] The invention relates to an inverter DC arc welding machine for welding copper electrodes, which is an improved technology for welding copper electrodes. Background technique [0002] At present, metal welding has achieved rapid development in various welding technology fields and has made great contributions to the industrial development of the world. Especially in the welding technology of ordinary steel, stainless steel, aluminum and other metals, the effect is remarkable. However, for the welding technology of copper and copper alloys, argon arc welding, forging, welding and other technologies are still used. The disadvantages are: poor operability, low efficiency, and energy consumption. Contents of the invention [0003] The purpose of the present invention is to provide an improved technology for welding copper electrodes applied to inverter direct current arc welding machines, so as to overcome poor weldability, broken arc, weak welding, poo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/10
Inventor 邹罗院
Owner SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
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