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Method and device for monitoring inert gas during welding process

A technology of inert gas and welding process, which is applied in the field of equipment for monitoring inert gas, and can solve the problems of complex composition of inert gas types and inability to determine the type of inert gas.

Active Publication Date: 2015-08-05
FRONIUS INTERNATIONAL GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unable to determine the type of inert gas used in the welding process
[0007] Due to the relative complexity of determining the type of inert gas or its composition, e.g. using a chromatograph, it has not been adopted in welding equipment

Method used

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  • Method and device for monitoring inert gas during welding process
  • Method and device for monitoring inert gas during welding process
  • Method and device for monitoring inert gas during welding process

Examples

Experimental program
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Embodiment Construction

[0033] exist figure 1 In, a welding apparatus 1 is shown for various processes or methods such as MIG / MAG, WIG / TIG, electrode welding, twin wire welding / tandem multi-arc welding, plasma Welding or brazing, etc.

[0034] The welding apparatus 1 includes a power source 2, a control device 4, and other components and circuits (not shown) such as switching elements, control valves, etc., and the power source 2 includes a power supply unit 3 arranged therein. The control device 4 is, for example, connected to a control valve arranged in the supply line for the inert gas 5 between the gas storage tank 6 and the welding torch 7 .

[0035] Furthermore, the device 8 for feeding the welding wire 9 from the wire supply drum 10 or from a reel located in the area of ​​the welding torch 7 , as is usual in MIG / MAG welding, can for example be activated by the control device 4 . Of course, it is also possible to integrate the feeding device 8 in the welding device 1, in particular in the hou...

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PUM

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Abstract

The invention relates to a method and a device (30) for monitoring the inert gas (5) during a welding process performed using a welding torch (7), wherein at least one measurement variable (Pi), which is dependent on the type of inert gas (5), is measured by means of at least one sensor (Si). According to the invention, at least two measurement variables (Pi) of the inert gas (5) are measured and the measured values (Mi) of the at least two measurement variables (Pi) of the inert gas (5) are compared with several saved values (Mi'), which are associated with inert gas types (Gi), of the at least two measurement variables (Pi), and the inert gas type (Gi), for which the assigned values (Mi') of the at least two measurement variables (Pi) are closest to the measured values (Mi) of the at least two measurement variables (Pi) of the inert gas (5), is displayed.

Description

technical field [0001] The invention relates to a method for monitoring an inert gas during a welding process using a welding torch, wherein at least one measured variable is measured by means of at least one sensor, which is dependent on the type of inert gas. [0002] Furthermore, the invention relates to a device for monitoring an inert gas during a welding process with a welding torch, wherein at least one sensor is provided for measuring at least one measured variable which is dependent on the type of inert gas. [0003] Although the subject matter of the present application is directed to the monitoring of inert gases during the welding process, the term "inert gas" also covers other gases used during the welding process, such as constituent gases, process gases and conveying gases. Background technique [0004] Methods and devices for determining the inert gas used in welding processes are known from the prior art. For example, AT 504964 B1 describes a device and a m...

Claims

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Application Information

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IPC IPC(8): B23K9/095B23K9/16B23K9/32
CPCB23K9/325G01N25/20B23K9/0956B23K9/16B23K9/32B23K9/328G01N7/00G01N25/22
Inventor 约翰尼斯·齐默尔戴维·沙林格曼纽尔·格拉德奥尔赫尔穆特·普夫吕格尔梅尔
Owner FRONIUS INTERNATIONAL GMBH