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Transferred arc and non-transferred arc synchronous rotation type plasma welding gun

A non-transferred arc, plasma welding technology, applied in the direction of plasma welding equipment, welding equipment, welding equipment, etc., can solve the problems of reduced mechanical properties of the welded joint area, nozzle burnout, and defective welds.

Inactive Publication Date: 2016-04-13
HARBIN INST OF TECH AT WEIHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The plasma torch has problems such as high-frequency electric arc burning locally on the inner wall of the water-cooled nozzle, causing nozzle burnout and affecting the welding seam formation, and the mechanical properties of the welding joint area are reduced, resulting in defects in the weld seam, etc.

Method used

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  • Transferred arc and non-transferred arc synchronous rotation type plasma welding gun
  • Transferred arc and non-transferred arc synchronous rotation type plasma welding gun
  • Transferred arc and non-transferred arc synchronous rotation type plasma welding gun

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Embodiment Construction

[0020] The present invention will be further described below in combination with specific embodiments.

[0021] The specific embodiment of transfer arc and non-transfer arc synchronous rotation type plasma torch of the present invention is as follows figure 1 , figure 2 , image 3 and Figure 4 shown.

[0022] The torch body 101 of the transferred arc and non-transferred arc synchronous self-rotating plasma torch of the present embodiment includes an upper torch body 17, a lower torch body 14, an electrode chuck 4 and a tungsten electrode 8, wherein the upper torch body 17 and the lower torch body 14 Fixedly connected by the insulating bracket 11, the tungsten electrode 8 is longitudinally installed in the upper gun body 17 and the lower gun body 14, and the electrode chuck 4 for clamping and fixing the tungsten electrode 8 is rotatably assembled in the upper gun body 17, and is mounted on the upper gun body 17. The gun body 17 is equipped with a DC speed-regulating motor...

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Abstract

The invention discloses a transferred arc and non-transferred arc synchronous rotation type plasma welding gun, and belongs to the technical field of welding equipment. The transferred arc and non-transferred arc synchronous rotation type plasma welding gun comprises an upper gun body and a lower gun body connected in an insulation manner; a tungsten electrode is arranged the upper gun body and the lower gun body in a penetrating manner; an electrode chuck for clamping the tungsten electrode is arranged in the upper gun body, and is rotationally assembled in the upper gun body; a collector ring fixedly sleeves the electrode chuck; an electric brush connected with the collector ring is mounted on the wall of the upper gun body; and the upper part of the electrode chuck is rotationally connected with a direct-current speed adjusting motor. The transferred arc and non-transferred arc synchronous rotation type plasma welding gun realizes stable arc combustion, prevents the nozzle burning loss phenomenon caused by local combustion of the inner wall of a high-frequency arc nozzle, reduces the formation of air holes, refines grains in a welding line area, and improves the welding line structure performance.

Description

technical field [0001] The invention belongs to the technical field of welding equipment, and in particular relates to a synchronously rotating plasma welding torch with transferred arc and non-transferred arc. Background technique [0002] Plasma arc welding is a high-quality welding method. The arc forms a plasma arc after mechanical compression, heat shrinkage and electromagnetic shrinkage, and its energy density increases sharply (up to 105-106W / cm 2 ), has the advantages of energy concentration, good arc straightness, and high welding efficiency. Ability to achieve greater penetration than tungsten inert gas (TIG) welding methods. Especially after the current increases to a certain range, the welding method in which the plasma arc penetrates from the surface side to the inside side of the base metal can be realized, commonly known as keyhole welding. At this time, single-sided welding and double-sided forming can be realized. has been widely used. [0003] During the...

Claims

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Application Information

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IPC IPC(8): B23K10/02B23K37/00
CPCB23K10/02B23K37/003
Inventor 张洪涛高丙路于江王波邹俊张文杰邹华进
Owner HARBIN INST OF TECH AT WEIHAI
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