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Functional control method of anti-stick electrode of electric welding machine and electric welding machine

A control method and electric welding machine technology, applied in the direction of arc welding equipment, manufacturing tools, welding equipment, etc., can solve the problem of high cost and achieve the effect of low cost and high reliability

Active Publication Date: 2019-09-24
SHENZHEN RILAND IND
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Problems solved by technology

[0004] This design requires an additional output voltage detection circuit and voltage isolation circuit, and the cost is high

Method used

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  • Functional control method of anti-stick electrode of electric welding machine and electric welding machine
  • Functional control method of anti-stick electrode of electric welding machine and electric welding machine
  • Functional control method of anti-stick electrode of electric welding machine and electric welding machine

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that the descriptions involving "first", "second" and so on in the present invention are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical ...

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Abstract

The invention discloses a welding rod sticking prevention function control method of an electric welding machine and the electric welding machine. The welding rod sticking prevention function controlmethod of the electric welding machine comprises the following steps that S100, when a start signal of the electric welding machine is received, a PWM control circuit is controlled to output PWM waves, and the electric welding machine enters an arcing state; S200, the duty ratio and the pulse width duration time of the PWM waves are obtained; and S300, whether the duty ratio of the PWM waves is smaller than a preset duty ratio or not and whether the pulse width duration time of the PWM waves is larger than preset duration time or not are judged, if yes, the step S400 is executed, the electricwelding machine is controlled to enter a rod sticking prevention state, and if no, the step S500 is executed, and the electric welding machine is controlled to enter a normal welding state. Accordingto the technical scheme, the advantage of low cost is achieved.

Description

technical field [0001] The invention relates to the technical field of electric welding machines, in particular to a method for controlling the function of an anti-stick welding rod of an electric welding machine and an electric welding machine. Background technique [0002] In the field of electric welding machines, manual arc welding requires welding with electrodes. When the arc is started, a large output current is usually required to ignite the electrode and enter the normal welding state. When the arc is not successful, if the output of high current continues, the electrode will easily stick to the workpiece, making it impossible to perform welding operation again. The arc-starting anti-stick function is to actively reduce the output current when the electrode is detected to be in contact with the workpiece for a period of time to prevent the electrode from sticking to the workpiece. [0003] The existing anti-sticking strip function realization method usually needs ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/095B23K9/067
Inventor 邱光王巍刘南黎青所陈捷
Owner SHENZHEN RILAND IND
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