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An Experimental Method for Plasma Arc Cutting

An experimental method, plasma arc technology, applied in the direction of plasma welding equipment, metal processing equipment, welding equipment, etc., to achieve the effect of ensuring comprehensiveness and reliability

Active Publication Date: 2020-07-24
BEIJING XINGUANGJIN GAS DEVICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, gas is a flammable and explosive gas, and there is no successful experience of using plasma arc cutting technology to open holes in pressurized gas pipelines.

Method used

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  • An Experimental Method for Plasma Arc Cutting
  • An Experimental Method for Plasma Arc Cutting
  • An Experimental Method for Plasma Arc Cutting

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Experimental program
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Embodiment Construction

[0024] First of all, it needs to be explained that the orientation words such as up, down, front, back, left, and right in the present invention are only described according to the accompanying drawings, so as to facilitate understanding, and are not intended to limit the technical solution and scope of protection of the present invention. .

[0025] Such as Figure 1 to Figure 7 Shown is a specific embodiment of a plasma arc cutting experimental method of the present invention, comprising the following steps:

[0026] 1. Build an experimental system. The experimental system includes an explosion-proof experimental box 1, a three-degree-of-freedom support 2, a plasma cutting gun 3, a control unit 4, an air supply unit 5, and a power supply 6. The side wall of the explosion-proof experimental box 1 is provided with a The material door 11, the first electromagnetic valve 12, the second electromagnetic valve 13, the third electromagnetic valve 14, the fourth electromagnetic valv...

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Abstract

The invention relates to a plasma arc cutting experimental method. The method includes the following steps: constructing an experimental system and designing a plurality of groups of experimental conditions according to a combination of different pressures and different nitrogen gas ratios; placing pipe cutting parts in an explosion-proof experimental box of the experimental system; vacuumizing the explosion-proof experimental box; introducing nitrogen and gas into the explosion-proof experimental box; cutting the pipe cutting parts with a plasma cutting gun; analyzing the cut state of each pipe cutting part to determine the optimal cutting condition. A reliable basis for hole opening operation on a gas pipeline by the plasma arc cutting technology is provided by simulating the gas pipeline pressure environment and performing the plasma arc cutting experiment.

Description

technical field [0001] The invention relates to a plasma arc cutting experimental method, in particular to a plasma arc cutting experimental method for simulating the environment of a gas pipeline with pressure. Background technique [0002] With the development of economy and society, the urban gas pipeline network is constantly expanding; in addition, due to factors such as natural aging, corrosion, and external damage, early gas pipelines often leaked, both of which caused gas pipeline construction. massive increase. Drilling and plugging are the key links in the construction of gas pipelines. In the prior art, two methods of depressurization manual operation and mechanical underpressure operation are mainly used for the drilling and sealing of gas pipelines. The pressure-reducing manual operation method has the advantages of low environmental requirements and wide application range, but it will affect the normal gas supply, cause waste of resources and environmental pol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K10/00
CPCB23K10/00
Inventor 李松李卓威梁文虎李强高永李艳茹刘增义蒋东杰
Owner BEIJING XINGUANGJIN GAS DEVICE RES INST