Plasma torch life duration detecting device

A technology of plasma welding and detection device, which is applied to measurement devices, material analysis by electromagnetic means, instruments, etc., can solve problems such as cost reduction, and achieve the effect of reducing detection mechanism and low cost

Inactive Publication Date: 2005-11-30
KOIKE SANSO KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Also, in the conventional example described in the following patent document 2, a detection mechanism and an identification mechanism for detecting contact between the nozzle guard and the workpiece are necessary, and cost reduction is also required.

Method used

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  • Plasma torch life duration detecting device
  • Plasma torch life duration detecting device
  • Plasma torch life duration detecting device

Examples

Experimental program
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Effect test

Embodiment Construction

[0047] The life detection device of the plasma torch according to the present invention detects the electrode by measuring and monitoring the voltage between the nozzle member and the nozzle guard which are insulated from each other in a state where a plasma arc is formed between the electrode and the material to be processed. Consumption of the nozzle parts, nozzle guards, contact between the nozzle guard and the material to be processed, and by applying a voltage between the nozzle part and the material to be processed in the state where the plasma arc is not formed, A device that detects contact between the nozzle guard and the material being processed.

[0048] In the case of measuring and monitoring the voltage between the nozzle part and the nozzle guard, the processing accuracy of the workpiece can be maintained by setting the voltage value to be monitored to a value that can maintain the possible performance of processing that satisfies the purpose It also prevents pro...

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Abstract

The invention relates to a lifetime detecting device of a plasma gun, which is characterized in that in the lifetime detecting device that a nozzle component (3) having an electrical conductivity is disposed outside of an electrode to maintain electrical insulation against the electrode, and a nozzle protection cover (4) having an electrical conductivity is disposed outside of the nozzle component (3) to maintain electrical insulation against the nozzle component (3). A voltmeter (7) for detecting the voltage between the nozzle component (3) and the nozzle protection cover (4) is arranged between the nozzle component (3) and the nozzle protection cover (4). The life of the plasma gun (the electrode (2), the nozzle component (3) and the nozzle protection cover (4)) is detected according to the voltage detected by the voltmeter (7).

Description

technical field [0001] The invention relates to a life detection device of a plasma torch. Background technique [0002] Currently, plasma processing apparatuses for efficiently cutting, welding, and the like are widely used for processing materials such as steel sheets and stainless steel sheets. In this plasma processing device, an arc is formed from an electrode attached to the front end of the plasma torch to the workpiece, and plasma gas is supplied around the arc to spray the plasma arc on the workpiece to melt the workpiece and discharge The melt is used to perform cutting processing, or to make two processed materials face each other and melt the opposing parts at the same time to perform welding processing. [0003] As a structure of a plasma torch, generally, a funnel-shaped nozzle member formed of a copper material or the like is provided on the outer periphery of an electrode, and the electrode is electrically insulated (hereinafter simply referred to as "insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00
Inventor 小池哲夫古城昭
Owner KOIKE SANSO KOGYO CO LTD
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