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Vulnerable part of welding gun and surface treatment method of vulnerable part

A technology for surface treatment and wearing parts, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problem of softening and deformation of copper wearing parts, easy slag hanging and burning, and difficulty in cleaning copper materials and other problems, to achieve the effect of solving the burning deformation, not easy to foam, and reducing the phenomenon of slag hanging

Inactive Publication Date: 2015-12-02
常州特尔玛科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first purpose of the present invention is to solve the problem that the copper vulnerable parts in the prior art are easy to hang slag and burn out during the welding process. For technical problems such as softening and deformation at high temperature, a welding torch wearing part with surface spraying treatment is provided

Method used

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  • Vulnerable part of welding gun and surface treatment method of vulnerable part
  • Vulnerable part of welding gun and surface treatment method of vulnerable part
  • Vulnerable part of welding gun and surface treatment method of vulnerable part

Examples

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Effect test

Embodiment 1

[0033] See figure 1 , the present embodiment takes the nozzle as an example to illustrate the structure and surface treatment method of the wearing parts of the present invention, figure 1 The middle is the composite nozzle.

[0034] figure 1 The nozzle in the nozzle is a hollow structure, including an outer shell 11, an insulating layer 12 and an inner core 13, wherein the outer shell 11 and the inner core 13 are made of copper. The insulating layer 12 is arranged on the inner wall of the casing 11 away from the injection hole. The outer surface 111 of the nozzle and the exposed inner surface 112 of the nozzle are coated with a metal oxide coating (not shown), and the metal oxide coating is 89-91% zirconium dioxide powder and 9-11% trioxide Two aluminum powders make the nozzle of this embodiment have good heat resistance, wear resistance and hardness, the melting point reaches 2800 degrees Celsius, and the thermal shock resistance reaches 450 degrees Celsius. service life...

Embodiment 2

[0042] See figure 2 , the present embodiment takes the nozzle as an example to illustrate the structure and surface treatment method of the wearing parts of the present invention, figure 2 One-piece nozzle. The outer surface 111 of the nozzle is coated with a metal oxide coating (not shown in the figure), and the exposed inner surface 112 of the nozzle may also be coated with a metal oxide coating.

Embodiment 3

[0044] See image 3 , this embodiment takes the contact tip as an example to illustrate the structure and surface treatment method of the consumable parts of the present invention. like image 3 As shown, the contact tip is a copper hollow structure, including the outer surface 21 of the contact tip and the inner surface 22 of the contact tip. The outer surface 21 of the contact tip is coated with a metal oxide coating (not shown in the figure), and the inner surface of the contact tip Surface 22 may also be coated with a metal oxide coating.

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Abstract

The invention discloses a vulnerable part of a welding gun and a surface treatment method of the vulnerable part. The vulnerable part of the welding gun is of a hollow structure and comprises an outer surface and an inner surface. A metal oxide coating is arranged on the outer surface. Metal oxide powder of the metal oxide coating includes 89%-91% of zirconium dioxide powder and 9%-11% of aluminum oxide powder. According to the vulnerable part of the welding gun and the surface treatment method of the vulnerable part, metal oxide powder is sprayed onto the surface of the vulnerable part of the welding gun, zirconium dioxide is high in fire-resistant temperature, small in specific heat coefficient and heat conductivity coefficient, good in comprehensive mechanical property and high in chemical stability, the abrasion resistance of the coating can be improved through aluminum oxide, and the thermal shock resistance is improved; in this way, the surface materials of the vulnerable part can be changed, the coating has a good heat dissipation effect, the temperature of a workpiece can be decreased, the durability and fire resistance of the high-temperature part are remarkably improved, the probability of slag hanging of the workpiece is greatly lowered, and the problem that an airflow path is blocked or wire feeding cannot be achieved due to the fact that the workpiece is burn down or slag hanging occurs is solved.

Description

technical field [0001] The invention relates to the field of welding guns, in particular to wearing parts of welding guns and a surface treatment method thereof. Background technique [0002] The wearing parts of the welding torch include the nozzle, the contact tip, the contact tip seat, etc. The existing wearing parts are mainly made of brass and red copper. When the welding torch is working, the temperature of the welding slag reaches thousands or even tens of thousands of degrees, while the melting point of copper is only over 1,000 degrees. During the welding process, the copper nozzle, contact tip, and contact tip seat are easy to burn out due to long-term high temperature. out of shape. At the same time, the temperature of the spatter generated when the welding torch is working exceeds the melting point of the copper material, and the copper material is prone to fusion reaction with the spatter, forming dross on the inner wall of the nozzle and the outer wall of the ...

Claims

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Application Information

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IPC IPC(8): B23K37/02C23C4/10C23C4/12
CPCB23K37/02
Inventor 付静朱丽阳聪王杨
Owner 常州特尔玛科技股份有限公司
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