Carbon dioxide electric arc welding sprayer based on thermal infrared radiation

A thermal infrared and arc welding technology, applied in arc welding equipment, welding equipment, welding accessories, etc., can solve problems such as nozzle blockage and porosity, and achieve the effect of reducing the production of CO2 gas, promoting decomposition, and increasing the melting rate.

Inactive Publication Date: 2017-08-18
SICHUAN MORROW WELDING DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide CO based on thermal infrared radiation 2 The arc welding nozzle solves the problem of air holes in the weld seam due to the attachment of rust, moisture and other substances on the welding wire, the influence of the wind, and the nozzle being blocked by splashes

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  • Carbon dioxide electric arc welding sprayer based on thermal infrared radiation
  • Carbon dioxide electric arc welding sprayer based on thermal infrared radiation

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Embodiment

[0023] Such as figure 1 , 2 As shown, the present invention is based on thermal infrared radiation of CO 2 The arc welding spray head includes a spray tube 1, and CO is arranged in the spray tube 1 2 The gas nozzle 2 is also provided with a protective cover 3 at the bottom of the spray tube 1, the center line of the protective cover 3 coincides with the axis of the spray tube 1, one end of the protective cover 3 is sealed with the end face of the spray tube 1, and the other end is provided with a A mesh cover 4, the inner cavity of the protective cover 3 is connected with CO 2 The gas nozzle 2 communicates, and the inner diameter of the protective cover 3 increases linearly along the direction of the spray tube 1 pointing to the net cover 4; at least one infrared thermal radiation heating probe 5 is also installed on the inner wall of the protective cover 3, A controller and a switch module 7 are also provided, and the infrared heat radiation heating probe 5 and the switch ...

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Abstract

The invention discloses a carbon dioxide electric arc welding sprayer based on thermal infrared radiation. The carbon dioxide electric arc welding sprayer based on thermal infrared radiation comprises a spray cylinder. A carbon dioxide spray nozzle is arranged in the spray cylinder. A protective cover is further arranged at the bottom of the spray cylinder. A center line of the protective cover coincides with the axis of the spray cylinder. One end of the protective cover and the end face of the spray cylinder are sealed, and the other end of the protective cover is provided with a net cover. An inner cavity of the protective cover communicates with the carbon dioxide spray nozzle. The inner diameter of the protective cover is linearly increased in the direction from the spray cylinder to the net cover. The inner side wall of the protective cover is further provided with at least one thermal infrared radiation heating probe. A controller and a switch module are further arranged on the spray cylinder. The thermal infrared radiation heating probes and the switch module are both connected with the controller. The carbon dioxide electric arc welding sprayer based on thermal infrared radiation solves the problems that because rust, moisture and other matter are attached to welding wires and influence is caused by wind, the spray nozzle is blocked by splashed matter, and air holes are generated in a weld joint.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to CO based on thermal infrared radiation 2 Arc welding nozzle. Background technique [0002] Pores in the weld seam refer to the voids formed in the weld seam when the gas in the weld seam pool does not escape before the metal solidifies and remains in the weld seam during welding. The gas is absorbed by the molten pool from the outside, or generated by the reaction during the welding metallurgy process. The pores can be divided into hydrogen pores, nitrogen pores, carbon dioxide pores, carbon monoxide pores, and oxygen pores. Common pores in welding are hydrogen pores and carbon monoxide pores. Pores reduce the effective cross-sectional area of ​​the weld and make the weld loose, thereby reducing the strength of the welded joints, reducing plasticity, and causing leakage. Pores are also factors that cause stress concentration. Hydrogen pores may also contribute to cold cracks, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/16B23K9/32
CPCB23K9/16B23K9/321
Inventor 杨友涛
Owner SICHUAN MORROW WELDING DEV
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