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Welding gun spray pipe and machining method thereof

A processing method and nozzle technology, used in metal processing equipment, manufacturing tools, welding equipment, etc., can solve the problems of easy slag hanging and easy burnout, and achieve the effects of not easy to deform, prolong service life, and good electrical conductivity.

Active Publication Date: 2015-12-09
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

[0005] The first purpose of the present invention is to solve the problem that the existing copper nozzle is easy to burn out and hang slag during the welding process, and to provide a nozzle that is easy to process and assemble, has good heat resistance and wear resistance, is not easy to deform, and can Greatly reduce the phenomenon of slag hanging on the nozzle, thus prolonging the service life of the welding torch nozzle

Method used

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  • Welding gun spray pipe and machining method thereof
  • Welding gun spray pipe and machining method thereof
  • Welding gun spray pipe and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] See figure 1 , the nozzle of the present embodiment is an integrated nozzle, comprising a connected nozzle main body 1 and a nozzle 2 located at the head of the nozzle main body 1; the nozzle main body 1 and the nozzle 2 are both hollow structures; the nozzle main body 1 The tail of the nozzle is provided with a connection structure 3; the main body of the nozzle 1 and the nozzle 2 are reinforced graphite; the reinforced graphite is mainly composed of graphite, and 2 to 3% of glass fiber and 3 to 5% of boric acid or 2 to 5% of boric acid are added to the graphite. 5% silicon carbide. The connection structure 3 may be an internal thread or an external thread, and in this embodiment it is an internal thread 31 for connecting with other parts of the welding torch.

[0036] The processing technology is:

[0037] Step 1: preparing reinforced graphite rods; the reinforced graphite rods use graphite as the main body, and add 2-3% glass fibers and 3-5% boric acid or 2-5% sili...

Embodiment 2

[0047] See figure 2 and image 3 , The nozzle of this embodiment is a split nozzle, the nozzle body 1 and the nozzle 2 are connected by threads, and the nozzle body 1 is made of red copper. The connection structure 3 is an elastic connection structure. The connection structure 3 includes a plurality of warping pieces 32 and an annular elastic piece 33; the multi-piece warping pieces 32 are axially arranged at the tail of the nozzle main body 1 with a gap between them. The annular elastic piece 33 is sheathed on the outside of the plurality of warping pieces 32 . Since the graphite material has no elasticity, it cannot adapt to the elastic assembly with parts. This structure can not only ensure the heat resistance and strength of the nozzle head, but also ensure the elastic assembly required for the assembly of the nozzle tail with other parts.

[0048] The process of processing the nozzle is consistent with that in Example 1.

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Abstract

The invention discloses a welding gun spray pipe and a machining method thereof. The welding gun spray pipe comprises a spray pipe body and a nozzle arranged on the head of the spray pipe body, wherein the spray pipe body is connected with the nozzle. The spray pipe body and the nozzle are both of a hollow structure. A connection structure is arranged on the tail portion of the spray pipe body. The nozzle is made of reinforced graphite with graphite as body. 2-3% of glass fibers and 3-5% of boric acid or 2-5% of silicon carbide are added into the graphite. The graphite has the advantages of being resistant to high temperature, not prone to deformation, conductive, heat-conductive, favorable for nozzle cooling and good in machining performance. The boric acid and the silicon carbide have the advantage of improving heat resistance and oxidation resistance. The reinforced graphite serves as the nozzle, so that the spray pipe has good conductivity, heat transfer performance and high temperature resistance, nozzle cooling is facilitated, the slag adhering phenomenon on the inner wall and the outer wall of the spray pipe can be effectively reduced, the problems that due to slag adhering, the spray pipe is burnt and deforms, an air path is blocked, and wire conveying is influenced are avoided, and the service life of the spray pipe is prolonged.

Description

technical field [0001] The invention relates to the field of welding torch accessories, in particular to a welding torch nozzle and a processing method thereof. Background technique [0002] The welding torch nozzle is the main part of the welding torch, and it is also the most important wearing part of the welding torch. The commonly used welding torch nozzle is mainly made of brass and 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 more than 1,000 degrees. During the welding process, the nozzle made of copper is easy to be burned out and deformed due to the long-term high temperature, and it is easy to hang slag. The temperature of the spatter exceeds the melting point of the copper material, and the copper material is easy to produce a fusion reaction with the spatter. After the slag is deposited, especially the slag on the inner wall of the no...

Claims

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Application Information

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IPC IPC(8): B23K37/00C04B35/83
CPCB23K37/00C04B35/83
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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