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Gas-protective submerged-arc welding digitalized power supply system for dual ARM (Automated Route Management) control and control method thereof

A power supply system, submerged arc welding technology, applied in arc welding equipment, electrical components, manufacturing tools, etc., can solve the problems of limited welding position, poor operation performance, low control accuracy, etc., to reduce electromagnetic interference, improve Electromagnetic compatibility and reliability, the effect of improving process performance

Inactive Publication Date: 2010-10-20
GUANGDONG POWER ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, because the traditional submerged arc welding machine needs to cover a layer of granular flux on the welding area, the arc burns under the flux layer, and the welding current is generally large.
It has defects such as limited welding position, poor operation performance, and low control accuracy.

Method used

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  • Gas-protective submerged-arc welding digitalized power supply system for dual ARM (Automated Route Management) control and control method thereof
  • Gas-protective submerged-arc welding digitalized power supply system for dual ARM (Automated Route Management) control and control method thereof
  • Gas-protective submerged-arc welding digitalized power supply system for dual ARM (Automated Route Management) control and control method thereof

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Embodiment

[0059] In this embodiment, a digital power supply system for gas-shielded submerged arc welding controlled by dual ARMs includes a chassis and a built-in circuit, wherein the structure of the built-in circuit is as follows figure 1 As shown, the built-in circuit includes a main circuit unit and a main control unit, and the main circuit unit is a limited bipolar soft-switching full-bridge inverter main circuit;

[0060] (1) The main circuit unit includes the following modules connected in sequence:

[0061] The primary rectification and filtering module 101 is used to convert the AC power from the industrial frequency AC power supply into smooth DC power;

[0062] The switch inverter module 102, by controlling the switching cycle of its internal IGBT, converts the DC power output by the rectification and filtering module to provide 25-30KHz high-frequency high-voltage power;

[0063] The power transformer module 103 is used to convert the high-frequency high-voltage power prov...

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Abstract

The invention discloses a gas-protective submerged-arc welding digitalized power supply system for dual ARM (Automated Route Management) control and a control method thereof. The system comprises a case and a built-in circuit, wherein the built-in circuit comprises a main circuit unit and a main control unit; the main circuit unit is a full-bridge inverting main circuit of a limited bipolar soft switch; and an ARM9S3C2440 controller is used in the main control unit. In the control method, a corresponding welding mode is selected through the controller, the welding process is monitored by the main control unit and three-phase power frequency alternating current is converted by the main circuit unit to obtain the required smooth direct current with heavy flow and low voltage. The invention can provide two different welding processes of submerged-arc welding and gas-protective welding for one welding machine, realize the soft switch in all range, greatly reduce the switch loss and the electric stress, effectively reduce the electromagnetic interference of an inverting welding machine while improving the efficiency and saving energy and improve the electromagnetic compatibility and the reliability of the inverting welding machine.

Description

technical field [0001] The invention relates to the technical field of welding power supplies, in particular to a digital power supply system for gas-shielded submerged arc welding controlled by dual ARMs and a control method thereof. Background technique [0002] Thick and large steel structures are widely used in shipbuilding, heavy machinery, gas and oil pipelines, petrochemical towers and other fields. With the development of large-scale and high-parameterization of power plant boilers and petrochemical vessels, the wall thickness of boiler shells and pressure vessel shells continues to increase, requiring a large number of highly efficient automatic welding equipment. Compared with other traditional arc welding methods, submerged arc welding has a series of unique advantages, such as high deposition rate, good weld quality and beautiful appearance, so it always occupies a higher role in the welding of thick and large parts. Apply scale. In the past 10 years, high-effi...

Claims

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Application Information

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IPC IPC(8): B23K9/095B23K9/10H02M5/458
CPCY02B70/1491Y02B70/10
Inventor 王则灵薛家祥丰斌祝国胜甘焕春姚屏
Owner GUANGDONG POWER ENG
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