Plasma torch nozzle wear after reverse-polarity cutting of aluminum alloys

被引：0

作者：

Grinenko, A. V. ^{[1
]}

Chumaevskii, A. V. ^{[1
]}

Nikolaeva, A. V. ^{[1
]}

Utyaganova, V. R. ^{[1
]}

Gurianov, D. A. ^{[1
]}

Kolubaev, E. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Tomsk, Russia

来源：

RUSSIAN PHYSICS JOURNAL | 2024年 / 67卷 / 11期

关键词：

Aluminum alloy; Plasma cutting; Plasma torch; Surface layer; Oxidation; Pores; Defect; 538.951; 620.18; 620.19;

D O I：

10.1007/s11182-024-03352-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The paper studies the layer degradation on the nozzle and electrode surface of plasma torches operating at a current with applied reverse polarity. AA5056 and AA2024 aluminum alloy sheets are used for plasma cutting. It is demonstrated that the surface of the nozzle channel and discharge chamber of the plasma torch are covered with the aluminum layer, that can be attributed to its evaporation in the cutting zone. Copper oxides and insignificant aluminum traces are observed on the surface of the discharge chamber and electrode channel. These copper oxides can almost completely block the water injection in the channel making it unusable.

引用

页码：2100 / 2105

页数：6

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