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Welding method of plasma pole noble gas protection

A plasma metal, inert gas technology, applied in welding equipment, metal processing equipment, arc welding equipment, etc., can solve problems such as inability to meet requirements

Active Publication Date: 2009-09-16
DAIHEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the plasma inert gas shielded welding method is used in this kind of welding position that emphasizes high quality, due to the adhesion of sputtering, it may not meet the required level.

Method used

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  • Welding method of plasma pole noble gas protection
  • Welding method of plasma pole noble gas protection
  • Welding method of plasma pole noble gas protection

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Embodiment Construction

[0049] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0050] figure 1 It is a structural diagram of a welding device for implementing the plasma metal inert gas shielded welding method related to the embodiment of the present invention. Hereinafter, each configuration will be described with reference to this figure.

[0051]The sequence control device PLC sends an interface signal If including a welding mode selection signal Ms, a welding start signal St, a metal inert gas welding voltage setting signal, a metal inert gas welding current setting signal, and a plasma current setting signal. The sequence control device PLC is a programmable logic controller (Programmabol Logic Controller), and corresponds to a robot control device or the like during robot welding. The metal inert gas welding power supply PSM receives the above-mentioned interface signal If, and when the above-mentioned welding mode selection signal Ms is ...

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Abstract

The present invention provides a welding method of plasma pole noble gas protection, in the plasma metal pole noble gas protection welding method, a welding wire (11) inside a gas protection injecting nozzle (43) and welding blow lamp of a plasma electrode (12) make metal pole noble gas electric arc (31) caused by the welding wire (11) and plasma electric arc (32) caused by the plasma electrode (12) generated and welded at the same time; a welding mode selective signal, and when the welding mode selective signal is in plasma metal pole noble gas welding mode, the plasma electric arc (32) and the metal pole noble gas electric arc (31) are generated at the same time; when the welding mode selective signal is in plasma welding mode, the plasma electric arc (32) is generated and the metal pole noble gas electric arc (31) is not generated, which only feeds to the welding wire (11), and melts the welding wire (11) while welding through the plasma electric arc (32). Hence, the plasma pole noble gas protection welding is suitable for easy burnt electric arc or weld bead appearance work piece in high quality without added sputter.

Description

technical field [0001] The present invention relates to the use of a welding torch equipped with a welding wire and a plasma electrode arranged in a shielding gas nozzle for ejecting shielding gas, and simultaneously generates a metal inert gas arc caused by the welding wire and a plasma arc caused by the plasma electrode. Welding plasma metal extremely inert gas shielded welding method. Background technique [0002] There has been proposed a plasma inert gas arc welding method in which a welding wire is fed as a melting electrode to generate an inert gas arc, and argon gas or the like is used as a plasma gas to generate a plasma arc including the above inert gas arc (see, for example, Patent Document 1). Figure 4 It is a schematic diagram showing the structure of the torch 4 and the arc generating part in the plasma metal inert gas shielded welding method. The melting electrode (hereinafter referred to as welding wire 11 ) is fed from a power supply chip 41 provided at th...

Claims

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Application Information

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IPC IPC(8): B23K9/16
Inventor 刘忠杰
Owner DAIHEN CORP
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