Windproof nozzle for welding double-layer gas shield

A gas protection, double-layer technology, applied in the direction of welding equipment, electrode characteristics, arc welding equipment, etc., can solve the problem of easy occurrence of arc craters and achieve the effect of avoiding arc craters

Inactive Publication Date: 2010-04-21
STX DALIAN SHIPBUILDING
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] Welding is often carried out outdoors, and there are more outdoor operations where the wind speed is above 2m / sec. When the wind speed is above 2.5m / sec, arc craters will occur in ordinary nozzles, and arcing is more likely to occur under the influence of wind speed when working at high places. pit

Method used

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  • Windproof nozzle for welding double-layer gas shield
  • Windproof nozzle for welding double-layer gas shield

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Embodiment Construction

[0014] like figure 1 As shown, a windproof nozzle for double-layer gas shielded welding includes a connecting sleeve 2, an inner nozzle 3, an outer nozzle 4, a vent hole 5, and a conductive tip 6. The conductive tip 6 is fixedly connected to the inner nozzle 3, and the conductive tip 6 and the inner nozzle 3 form an annular cavity 7 with one end closed and the other open; the outer nozzle 4 is fixedly connected to the contact tip 6 through the connection sleeve 2, and the contact tip 6, the connection sleeve 2, the outer nozzle 4 and the A cavity 8 is formed between the inner nozzles 3 ; the contact tip 6 is provided with vent holes 5 in the annular cavity 7 and the part inside the cavity 8 . The contact tip 6 is threadedly connected with the inner nozzle 3 . The outer nozzle 4 is threadedly connected with the contact tip 6 through the connecting sleeve 2 . The diameter of the contact tip 6 in the annular cavity 7 is smaller than the diameter of the contact tip 6 in the cavi...

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Abstract

The invention relates to a windproof nozzle for welding a double-layer gas shield, comprising a connecting sleeve (2), an inner nozzle (3), an outer nozzle (4), vent holes (5) and a current contact nozzle (6). The nozzle is characterized in that the current contact nozzle (6) and the inner nozzle (3) are fixedly connected; an annual die space (7) is formed between the current contact nozzle (6) and the inner nozzle (3), wherein one end of the annual die space (7) is closed and the other end is open; the outer nozzle (4) is fixedly connected with the current contact nozzle (6) through the connecting sleeve (2), and a die space (8) is formed between the current contact nozzle (6) and the connecting sleeve (2) as well as the outer nozzle (4) and the inner nozzle (3); and parts of the current contact nozzle (6), which are arranged in the annual die space (7) and the die space (8), are provided with vent holes. The double-layer gas shield is formed by CO2 gas in welding, thereby of the welding work can be smoothly done outdoors at high position above the ground when the wind speed is more than 2m/sec and crater can not be caused.

Description

technical field [0001] The invention relates to a welding device, in particular to a welding nozzle. Background technique [0002] Welding is often carried out outdoors, and there are more outdoor operations where the wind speed is above 2m / sec. When the wind speed is above 2.5m / sec, arc craters will occur in ordinary nozzles, and arcing is more likely to occur under the influence of wind speed when working at high places. pit. Patent 200620133644.9 relates to a double-layer protective nozzle of a welding torch. Contents of the invention [0003] The object of the present invention is to provide a windproof nozzle for double-layer gas shielded welding without arc craters when the wind speed exceeds 2m / sec. [0004] The technical scheme that the present invention adopts for realizing the above object is: [0005] A windproof nozzle for double-layer gas shielded welding, including a connecting sleeve, an inner nozzle, an outer nozzle, a vent hole, and a conductive tip, ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/26B23K9/16
Inventor 崔圭原金大满许相峻
Owner STX DALIAN SHIPBUILDING
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