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Combination electrode for welding gun for welding vehicle door galvanized sheet

A composite electrode, galvanized sheet technology, applied in welding medium, electrode characteristics, welding equipment and other directions, can solve the problems of easy welding, poor welding performance, etc., to achieve the effect of not easy to open welding, improve welding performance, and avoid sticking

Inactive Publication Date: 2013-10-16
HARBIN LINGYUN AUTOMOBILE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of poor welding performance and easy open welding in the existing spot welding process of galvanized steel sheets

Method used

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  • Combination electrode for welding gun for welding vehicle door galvanized sheet
  • Combination electrode for welding gun for welding vehicle door galvanized sheet
  • Combination electrode for welding gun for welding vehicle door galvanized sheet

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0012] Specific implementation mode one: combine Figure 1-Figure 3 Describe this embodiment, the special compound electrode of the welding torch of welding car door galvanized sheet of this embodiment comprises chromium-zirconium copper electrode cap 1, and the top of chromium-zirconium copper electrode cap 1 is provided with cooling hole 3 along its axis, and chromium-zirconium copper electrode cap 1 The bottom of the bottom is provided with a through hole 4, the through hole 4 is a tapered hole gradually expanding from top to bottom, the through hole 4 communicates with the cooling hole 3, the upper end aperture of the through hole 4 is smaller than the aperture of the cooling hole 3, the composite electrode It also includes a tungsten pole 2, the outer wall of the tungsten pole 2 gradually expands from top to bottom, the tungsten pole 2 is arranged in the through hole 4, and the outer side wall of the tungsten pole 2 and the inner side wall of the through hole 4 have an int...

specific Embodiment approach 2

[0014] Specific implementation mode two: combination Figure 1-Figure 3 The present embodiment will be described. The taper of the outer wall of the tungsten electrode 2 of the present embodiment is 3°. Such arrangement is convenient to cooperate with the through hole 4 on the chrome-zirconium copper electrode cap 1 . Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0015] Specific implementation mode three: combination Figure 1-Figure 3 The present embodiment will be described. The smallest end diameter of the tungsten electrode 2 of the present embodiment is 7 mm. Such arrangement is convenient to cooperate with the through hole 4 on the chrome-zirconium copper electrode cap 1 . . Other compositions and connections are the same as those in the second embodiment.

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Abstract

The invention discloses a combination electrode for a welding gun for welding a vehicle door galvanized sheet, and relates to a combination electrode. The combination electrode for the welding gun for welding the vehicle door galvanized sheet solves the problems that welding performance is poor and unsoldering can happen easily in the spot welding process of an existing galvanized steel sheet. The combination electrode comprises a chromium, zirconium and copper electrode cap (1). A cooling hole (3) is formed in the upper portion of the chromium, zirconium and copper electrode cap (1) along the axis of the chromium, zirconium and copper electrode cap, and a through hole (4) is formed in the lower portion of the chromium, zirconium and copper electrode cap (1). The through hole (4) is a taper hole which expands increasingly from top to bottom, and the through hole (4) is communicated with the cooling hole (3). The combination electrode further comprises a tungsten electrode (2), wherein the outer side wall of the tungsten electrode (2) expands increasingly from top to bottom, the tungsten electrode (2) is arranged inside the through hole (4), and the outer side wall of the tungsten electrode (2) is in interference fit with the inner side wall of the through hole (4). The combination electrode is matched with the welding gun in use and is used for welding the vehicle door galvanized sheet.

Description

technical field [0001] The invention relates to a composite electrode for a welding torch, in particular to a special composite electrode for a welding torch for welding a galvanized sheet of a car door. Background technique [0002] In the past ten years, my country's automobile industry has developed rapidly, and the ensuing anti-corrosion problems of automobile bodies have become increasingly prominent. According to relevant surveys, corrosion spots appear in general domestically produced new cars after one year of operation, and corrosion penetration occurs in three to four years. For this reason, the national annual maintenance cost amounts to billions of yuan. Therefore, in order to improve the service life of the car body and enhance the anti-corrosion performance of the car body material, the surface galvanized steel sheet is widely used. [0003] Although the galvanized steel sheet used in the car door has good corrosion resistance, in the manufacture of automobile ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/30B23K35/04
Inventor 朱慧峰张黎黎耿秋勇唐奇金查文平
Owner HARBIN LINGYUN AUTOMOBILE PARTS
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