KR20170079131A

KR20170079131A - Torch for welding

Info

Publication number: KR20170079131A
Application number: KR1020150189354A
Authority: KR
Inventors: 이정명
Original assignee: 이정명
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2017-07-10
Also published as: KR101764032B1

Abstract

The welding torch according to the present invention includes a torch body part having an arc generating part formed at one end thereof as a space in which an arc for welding a work can be formed and a torch body part having one end part of the torch body part A tungsten electrode rod installed in the inside of the torch body and adapted to receive electricity so that the arc can be generated; a tungsten electrode rod installed in the torch body for guiding the working gas to be discharged toward the arc generating unit, A cooling water channel provided inside the torch body portion adjacent to the arc generating portion and through which cooling water for cooling the torch body portion heated by the arc flows; And a filler material supply portion for guiding the filler material to be supplied to the arc generating portion, It is melted by characterized in that it can be sprayed on the surface of the material.
According to the welding torch of the present invention, it is possible to minimize the dilution rate between the base material and the consumable material during welding, and it is advantageous that the consumable material can be stably supplied by a constant amount.

Description

[0001] TORCH FOR WELDING [0002]

The present invention relates to a welding torch for use in welding.

Generally, a welding method is frequently used for joining metal materials. Such a welding method includes, for example, a gas tungsten arc welding (GTAW) as disclosed in Korean Patent No. 10-0497878, which uses a tungsten electrode rod and inert gases such as argon and helium Which means that the inert gas arc welding which generates an arc is scheduled.

The torch used for such a gas tungsten arc welding is used in a form in which a worker manually inputs a tungsten electrode into one tungsten electrode or a feeder is separately provided on the outside of the torch to supply the filler.

However, according to this method, there is a problem that the depth of penetration is too deep and the welding surface is diluted because the base material and the filler are mixed. In addition, there is a problem that the excipient is not constantly injected or the excipient is easily separated from the torch.

Korean Patent No. 10-0497878 (September 27, 2005)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a welding torch capable of minimizing a dilution ratio between a base material and a consumable material during welding.

And, the present invention is to provide a welding torch in which the stain material can be supplied in a more stable and constant amount.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

As described above, the welding torch according to the present invention includes a torch body part having an arc generating part formed at one end thereof as a space in which an arc for welding a work can be formed, A tungsten electrode rod installed inside the torch body for applying electric power to the arc generator so as to generate an arc, and a tungsten electrode rod installed in the torch body for directing the arc generator toward the arc generator, A cooling water flow path provided inside the torch body portion adjacent to the arc generating portion and through which cooling water for cooling the torch body portion heated by the arc flows; And a filler material supply unit installed inside the arc generator and guiding the filler material to be supplied to the arc generator , The above-mentioned sparging material can be melted by the arc and sprayed on the surface of the material.

As described above, according to the welding torch of the present invention, there is an advantage that the dilution ratio between the base material and the filler material at the time of welding can be minimized.

And, the present invention has an advantage that the stabile material can be supplied more stably by a certain amount.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conventional gas tungsten arc welding method. FIG.
2 is a view showing a main configuration of a welding torch according to the present invention;

Hereinafter, embodiments of a welding torch according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view showing a conventional gas tungsten arc welding method, and FIG. 2 is a view showing a main configuration of a welding torch according to the present invention.

Referring to FIG. 1, an inert gas is injected from a torch 10 to a welding site, and a tungsten electrode rod 11, which is provided inside the torch 10, An arc is generated between the tungsten electrode rod 11 and the base material 19. As a result, When the welding rod 140 is positioned toward the arc, the welding material 140 is melted and welded to the base material 19.

However, with this method, the penetration depth is too deep, and there is a problem that the base material 19 and the filler material 140 are mixed and the welding surface is diluted. In addition, there is a problem that the filler material 140 is not constantly injected or the filler material 140 is easily separated from the torch at an appropriate distance.

Referring to FIG. 2, the welding torch 2 according to the present invention includes a torch body 20 having an arc generating part 200, which is a space in which an arc for welding a work can be formed, A tungsten electrode rod 21 installed inside the torch body 20 so as to be positioned at the arc generating part 200 and to which electric power is applied so that the arc can be generated, A gas flow path 22 installed in the arc generator 20 for guiding an inert gas to be discharged toward the arc generator 200 so that the arc can be smoothly generated, A cooling water channel 23 installed inside the torch body 20 adjacent to the torch body 20 and flowing cooling water for cooling the torch body 20 heated by the arc, And the arc material 240 is provided in the arc generating part 200 And a filler metal supply unit 24 for guiding to geupdoel.

The torch body portion 20 has a space in which the tungsten electrode rod 21, the gas flow path 22, the cooling water flow path 23 and the filler material supply portion 24 can be provided. It can be formed into a tapered shape.

The arc generating part 200 is formed at the end of the torch body part 20 as a space opened in a direction in which an end of the torch body part 20 extends. The end of the tungsten electrode rod 21, the end of the gas passage 22, and the end of the filler material supply unit 24 may be exposed to the arc generating unit 200.

Accordingly, when electricity is applied to the tungsten electrode rod 21 in a state where the arc generator 200 is positioned adjacent to the workpiece, an arc can be generated in the arc generator 200, And the inert gas is supplied through the gas flow path 22 so that the arc and the welded portion can be protected from the external gas.

A power source may be connected to the other end of the tungsten electrode rod 21 so that electricity can be selectively applied to the tungsten electrode rod 21. The inert gas and the cooling water are continuously supplied to the gas passage 22 and the cooling water passage 23, Tanks and cooling water tanks. Here, the inert gas may be, for example, argon (Ar), helium (He), or the like, which can shield the arc and the welded portion from external gas.

The excipient supply unit 24 is connected to the side of the arc generator 200 and the side of the torch body 20 so that the excipient supply unit 24 formed on the side surface of the torch body 20 The filler material 240 may be supplied toward the arc generating part 200 in a manner that the filler material 240 is injected through the filler 240.

The filler material supply unit 24 is provided with an automatic feeder (not shown), and the filler material 240 can be supplied in a predetermined amount per unit time through the filler material supply unit 24.

The tungsten electrode rod 21 may be provided symmetrically with respect to the filler material 240 supplied from the filler material supply unit 24. The tungsten electrode rod 21 may be positioned radially with respect to the filler material 240. The tungsten electrode rod 21 may be positioned radially with respect to the filler material 240. [

Therefore, the phenomenon of penetration of the filler material 240 into the surface of the workpiece is minimized, and the filler material 240 is melted by the arc and sprayed on the surface of the workpiece to be sprayed. Therefore, It is possible to minimize the dilution rate between the first electrode 240 and the second electrode 240.

The excipient supply unit 24 may further include a vibrating unit (not shown) for applying vibrations to the excipient supply unit 24. Therefore, when the filler material 240 is supplied through the filler material supply unit 24, the vibrating unit operates to minimize the drying of the filler material 240.

Therefore, according to the present invention, there is an advantage that the dilution rate between the base material and the filler (240) during welding can be minimized.

In addition, the present invention has an advantage that the filler material 240 can be supplied in a more stable amount.

2: welding torch
20: torch body part
21: Tungsten electrode rod
22: gas channel
23: cooling water flow path
24:
200: arc generator
240:

Claims

A torch body portion formed at one end with an arc generating portion, which is a space in which an arc for welding a workpiece can be formed;
A tungsten electrode rod installed inside the torch body so that one end of the tungsten electrode rod can be positioned in the arc generating part, and electricity is applied so that the arc can be generated;
A gas flow path provided inside the torch body and guiding the inert gas to be discharged toward the arc generating part so that the arc can be smoothly generated;
A cooling water flow passage installed inside the torch body portion adjacent to the arc generating portion and through which cooling water for cooling the torch body portion heated by the arc flows; And
And a filler material supply unit installed in the torch body and guiding the arc material to be supplied to the arc generator,
Wherein the excipient is melted by the arc and can be sprayed on the surface of the workpiece.

The method according to claim 1,
Wherein the tungsten electrode rod is provided in a plurality of positions symmetrically with respect to the filler material supplied from the filler material supply unit.

3. The method of claim 2,
Wherein the filler supplying portion is located at a central portion of the arc generating portion, and the tungsten electrode rod is positioned radially with respect to the filler.

The method according to claim 1,
Wherein the excipient supply portion includes a vibrating portion for applying vibration to the excipient supply portion,
Wherein when the excrement material is supplied through the excipient supply unit, the vibrating unit operates to minimize the drying of the excrement material.

The method according to claim 1,
Wherein the excipient is supplied through the excipient supply unit in a predetermined amount per unit time.