KR20090084121A - Plasma torch of welding machine - Google Patents

Plasma torch of welding machine Download PDF

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Publication number
KR20090084121A
KR20090084121A KR1020080010112A KR20080010112A KR20090084121A KR 20090084121 A KR20090084121 A KR 20090084121A KR 1020080010112 A KR1020080010112 A KR 1020080010112A KR 20080010112 A KR20080010112 A KR 20080010112A KR 20090084121 A KR20090084121 A KR 20090084121A
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South Korea
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tip
torch
plasma torch
cooling water
welding machine
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KR1020080010112A
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Korean (ko)
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황원규
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황원규
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Priority to KR1020080010112A priority Critical patent/KR20090084121A/en
Publication of KR20090084121A publication Critical patent/KR20090084121A/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/28—Cooling arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00—Welding or cutting by means of a plasma
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/003—Cooling means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3436—Hollow cathodes with internal coolant flow

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Plasma Technology (AREA)
  • Arc Welding In General (AREA)

Abstract

A plasma torch of a welding machine using indirect cooling method is provided to lengthen durability and lifetime of the plasma torch because the tip is prevented from being heated. A plasma torch of a welding machine using indirect cooling method comprises a tip and a torch body. In the tip, the circuitry influx unit is formed as the inside of the tip body(31) in order to cool the temperature of tip to the indirect cooling method. In the torch body, the cooling water inflow opening(11) and outlet port(12) are formed in order to supply the cooling water to the circuitry influx unit formed on the tip. The torch body circulates the cooling water in the coolant circuitry contacting with the circuitry influx unit of tip.

Description

간접 냉각방식을 이용하는 용접기의 프라즈마 토치{Plasma Torch of Welding Machine}Plasma Torch of Welding Machine using Indirect Cooling

본 발명은 간접 냉각방식을 이용하는 용접기의 프라즈마 토치에 관한 것으로, 상세하게는 고열 프라즈마 전류와 알곤 가스 압력으로 용접하는 용접기의 구성에서, 토치에 결합하여 알곤 가스를 분출하여 재료를 녹이는 팁을 간접 냉각 방식으로 온도를 저하시켜, 팀의 수명을 연장할 수 있도록 한 프라즈마 토치에 관한 것이다.The present invention relates to a plasma torch of a welding machine using an indirect cooling method, and more particularly, in the configuration of a welding machine welding with high temperature plasma current and argon gas pressure, indirect cooling of a tip for dissolving material by spouting argon gas in combination with a torch. It is about a plasma torch that reduces the temperature in such a way as to extend the life of the team.

일반적으로 용접기는 전류의 스파크를 이용하여 용접봉을 녹여 용접하고자 하는 모재를 견고하게 용접시켜 주는데 사용하는 것이다.In general, the welding machine is used to weld the base metal to be welded by melting the electrode by using a spark of electric current.

상기와 같은 용접기에서도, 알곤 용접기, 미그 및 탄산가스 용접기, 아크 용접기, 프라즈마 전달기로 구분되는데, 이러한 용접기는 전원 스위치와 전압, 전류 조정기 등이 내장되어 있는 본체와, 상기의 본체로부터 전선으로 연결되어 작업자가 잡은 상태에서 선단부에 용접봉이 물려지도록 한 토치로 구성되는 것이 일반적 이다.Also in the above welding machine, it is divided into argon welding machine, mig and carbon dioxide gas welding machine, arc welding machine, plasma transmitter, and the welding machine is connected to the main body in which a power switch, a voltage, a current regulator, and the like are built-in, and a wire from the main body. It is generally composed of a torch that allows the welding rod to be snapped to the tip end by the operator.

상기와 같은 용접기의 토치는 고열의 프라즈마 전류와 고압의 알곤 가스가 분출되는 것으로 용접 화염과 접하고 있어, 용접 토치는 작업 중에 상당한 고온을 유지하게 된다.The torch of the welding machine as described above is in contact with the welding flame by ejecting high-temperature plasma current and high-pressure argon gas, so that the welding torch maintains a considerable high temperature during operation.

그러므로 종래의 용접기의 경우 토치에 결합되어 알곤 가스가 분출되는 팁이 고온으로 인해 쉽게 파손되어 팁의 수명이 단축되므로, 작업 중에 수시로 팁을 교체하여 작업해야 하는 불편함이 있는 것이다.Therefore, in the case of the conventional welding machine, the tip of which the argon gas is ejected is easily broken due to the high temperature to shorten the life of the tip.

상기와 같은 팁의 온도를 내리는 방법으로 팁 내부에 직접으로 물을 순환시켜 직접 냉각방식으로 팁의 온도를 내리고 있으나, 이러한 방법은 진공용접 작업에는 사용할 수 없는 문제점이 있는 것이다.By lowering the temperature of the tip as described above, the water is circulated directly inside the tip to lower the temperature of the tip by a direct cooling method, but this method has a problem that cannot be used for vacuum welding.

본 발명은 상기와 같은 문제점을 해결하여, 프라즈마 토치에 결합하는 팁의 온도는 내리면서, 진공 용접작업을 진행할 수 있도록 하여, 용접작업에 편리함을 제공하고 작업의 능률을 향상하고자 하는 것이다.The present invention is to solve the above problems, to reduce the temperature of the tip coupled to the plasma torch, to proceed with the vacuum welding operation, to provide a convenience in welding work and to improve the efficiency of the work.

본 발명은 종래의 문제점을 해결하는 수단으로, 용접기의 프라즈마 토치의 구성을 개선한 것으로, 토치 몸체 내측으로 프라즈마 전류를 제공하는 전극과 알곤 가스를 분출하는 팁을 형성하는 용접장치의 프라즈마 토치에 있어서,The present invention is to improve the configuration of the plasma torch of the welding machine as a means to solve the conventional problems, in the plasma torch of the welding apparatus for forming an electrode for providing a plasma current inside the torch body and a tip for ejecting the argon gas ,

상기의 프라즈마 토치의 구성이, 간접 냉각방식으로 팁의 온도를 냉각할 수 있도록 순환로 유입부를 형성한 팁과, 상기의 순환부 유입부에 냉각수를 공급할 수 있도록, 냉각수 유입구 및 유출구를 형성하고, 냉각수의 순환을 위한 냉각수 순환로를 형성한 토치 몸체로 구성한 프라즈마 토치를 제공하는 것이다.The above-described plasma torch has a tip formed with a circulation path inlet to cool the tip temperature by an indirect cooling method, and a coolant inlet and an outlet so that coolant can be supplied to the circulation inlet. It is to provide a plasma torch consisting of a torch body forming a cooling water circulation path for circulation of the.

본 발명은 프라즈마 토치의 팁에 용접작업 중에 발생하는 온도의 상승을 간접방식으로 냉각하여 팁이 가열되는 것을 방지하므로, 팁의 수명과 내구성을 연장하여, 프라즈마 토치의 내구성과 수명을 연장하는 효과가 있는 것이다.The present invention prevents the tip from being heated by indirectly cooling the temperature rise generated during the welding operation on the tip of the plasma torch, thereby extending the life and durability of the tip, thereby extending the durability and life of the plasma torch. It is.

상기와 같은 본 발명의 효과는 프라즈마 토치의 팁이 간접냉각방식으로 냉각을 하므로 진공용접을 진행하면서 팁을 냉각할 수 있어, 프라즈마 용접 작업의 효율성을 제공하는 효과가 있는 것이다.The effect of the present invention as described above is that the tip of the plasma torch is cooled by the indirect cooling method can be cooled while the vacuum welding proceeds, there is an effect of providing the efficiency of the plasma welding operation.

토치 몸체(10) 내측으로 프라즈마 전류를 제공하는 전극(20)과 알곤 가스를 분출하는 팁(30)을 형성하는 용접장치의 프라즈마 토치(40)에 있어서,In the plasma torch 40 of the welding apparatus forming an electrode 20 for providing a plasma current into the torch body 10 and a tip 30 for ejecting argon gas,

상기의 프라즈마 토치(40)의 구성이, 간접 냉각방식으로 팁(30)의 온도를 냉각할 수 있도록 팁 몸체(31) 안쪽으로 순환로 유입부(32)를 형성한 팁(30)과,The configuration of the plasma torch 40, the tip 30 is formed in the circulation passage inlet 32 into the tip body 31 to cool the temperature of the tip 30 by the indirect cooling method,

상기의 팁(30)에 형성한 순환로 유입부(32)에 냉가수를 공급할 수 있도록, 냉각수 유입구(11) 및 유출구(12)를 형성하고, 팁(30)의 순환로 유입부(32)와 접하는 냉각수 순환로(13)에 냉각수를 순환시키는 토치 몸체(10)로 구성한 것을 특징으로 하는 것이다.The cooling water inlet 11 and the outlet 12 are formed so that the cold water can be supplied to the circulation path inlet 32 formed at the tip 30, and contacted with the circulation path inlet 32 of the tip 30. It is characterized in that it comprises a torch body 10 for circulating the cooling water in the cooling water circulation path (13).

이와 같이 토치 몸체(10)에 결합하여 사용하는 팁(30)을 순환로 유입부(31)를 통하여 간접방식으로 냉각을 하는 프라즈마 토치(40)의 사용은 다음과 같다.As such, the use of the plasma torch 40 that cools indirectly through the circulation inlet 31 of the tip 30 coupled to the torch body 10 is as follows.

본 발명의 프라즈마 토치(40)는, 통상의 알려진 바와 같이 프라즈마 전류를 전극(20)을 통하여 공급하면서, 팁(30)의 가스 분출공(32)에서 분출되는 알곤 가스 압력으로 용접작업을 하는 용접장치의 프라즈마 토치(40)로 사용되는 것이다.The plasma torch 40 of the present invention is welded by argon gas pressure ejected from the gas ejection hole 32 of the tip 30 while supplying a plasma current through the electrode 20 as is commonly known. It is used as the plasma torch 40 of the device.

상기와 같이 프라즈마 토치(40)가 용접작업으로 사용될 때 알곤 가스의 압력과 고열의 프라즈마 전류에 의해서 팁(30)은 쉽게 온도가 상승하게 되므로, 팁(30)의 온도가 내려가도록 팁에 대한 냉각작업이 필요한 것이다.When the plasma torch 40 is used as a welding operation as described above, the tip 30 easily rises in temperature due to the pressure of argon gas and the high-temperature plasma current, so that the temperature of the tip 30 is lowered. Work is needed.

본 발명은 상기와 같이 온도가 상승한 팁(30)을 토치 몸체(10)에 형성한 냉각수 유입구(11)를 통해 냉각수(a)를 토치 몸체(10) 내부로 유입하고, 토치 몸체(10) 내부로 유입한 냉각수(a)는 냉각수 순환로(13)를 따라 진행하면서, 팁 몸체(31) 내측으로 형성된 순환로 유입부(32)를 경유하는 과정에서 냉각수(a)의 온도에 의해 팁(30)이 냉각되어 온도가 내려가는 것이다.In the present invention, the coolant (a) flows into the torch body (10) through the coolant inlet (11) formed in the torch body (10) with the tip (30) whose temperature rises as described above, and inside the torch body (10). The coolant (a) flowing into the coolant (a) proceeds along the coolant circulation path (13), while the tip (30) is caused by the temperature of the coolant (a) in the process of passing through the circulation path inlet (32) formed inside the tip body (31). It cools down and the temperature goes down.

상기와 같이 팁(30)이 냉각될 수 있도록, 팁(30)의 냉각수 유입부는 많은 량의 냉각수(a)가 유입될 수 있도록, 원뿔 형태로 경사지게 하므로, 유입된 냉각수(a)의 량을 많게 하고, 팁(30)이 냉각수(a)와 접하는 면을 넓게 하므로, 신속하게 팁(30)이 냉각될 수 있도록 한 것이다.In order to cool the tip 30 as described above, the cooling water inlet of the tip 30 is inclined in a conical shape so that a large amount of cooling water (a) can be introduced, so that the amount of the cooling water (a) introduced is increased. And, the tip 30 widens the contact surface with the cooling water (a), so that the tip 30 can be cooled quickly.

상기와 같이 팁(30)의 순환로 유입부(32)를 경유한 냉각수(a)는 냉각수 순환로(13)를 따라 이동하여 냉각수 유출구(12)를 통해 토치 몸체(10) 외부로 배출되는 것으로, 상기의 작업은 냉각수(a)가 순환하는 방식으로 프라즈마 토치(10)의 팁(30)을 냉각하는 것이다.As described above, the cooling water a passing through the circulation path inlet 32 of the tip 30 moves along the cooling water circulation path 13 and is discharged to the outside of the torch body 10 through the cooling water outlet 12. The job of is to cool the tip 30 of the plasma torch 10 in such a way that the coolant a circulates.

상기와 같은 작용에서 순환하는 냉각수(a)는 전극(20)이 위치한 팁(30)의 가스 분출공(33) 내부로 직접 냉각수(a)가 유입되지 않고, 순환로 유입부(32)을 통하여 전극(20) 주변과 팁(30)의 주변을 냉각하는 간접방식으로 냉각을 진행할 수 있는 것이다.Cooling water (a) circulating in the above operation does not directly enter the cooling water (a) into the gas ejection hole 33 of the tip 30 where the electrode 20 is located, the electrode through the circulation path inlet (32) (20) It is possible to proceed with the cooling indirect way to cool the periphery and the periphery of the tip (30).

미설명 부호 '41'은 외부 케이스, '42'는 패킹을 표시한다.Reference numeral '41' denotes an outer case and '42' denotes a packing.

도 1은 본 발명의 구성을 설명한 측면도1 is a side view illustrating the configuration of the present invention

도 2는 본 발명의 사용과 냉각수의 흐름을 표시한 종단면도Figure 2 is a longitudinal sectional view showing the use of the present invention and the flow of coolant;

도 3은 본 발명에서 팁의 구성을 설명한 사시도Figure 3 is a perspective view illustrating the configuration of the tip in the present invention

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

10. 토치 몸체10. Torch Body

11. 냉각수 유입구11. Cooling water inlet

12. 냉각수 유출구12. Coolant outlet

13. 냉각수 순환로13. Cooling water circuit

20. 전극20. Electrode

30. 팁30. Tips

31. 팁 몸체31. Tip body

32. 순환로 유입부32. Circulation inlet

33. 가스 분출공33. Gas vent

40. 프라즈마 토치40. Plasma Torch

Claims (1)

토치 몸체(10) 내측으로 프라즈마 전류를 제공하는 전극(20)과 알곤 가스를 분출하는 팁(30)을 형성하는 용접장치의 프라즈마 토치(40)에 있어서,In the plasma torch 40 of the welding apparatus forming an electrode 20 for providing a plasma current into the torch body 10 and a tip 30 for ejecting argon gas, 상기의 프라즈마 토치(40)의 구성이, 간접 냉각방식으로 팁(30)의 온도를 냉각할 수 있도록 팁 몸체(31) 안쪽으로 순환로 유입부(32)를 형성한 팁(30)과,The configuration of the plasma torch 40, the tip 30 is formed in the circulation passage inlet 32 into the tip body 31 to cool the temperature of the tip 30 by the indirect cooling method, 상기의 팁(30)에 형성한 순환로 유입부(32)에 냉가수를 공급할 수 있도록, 냉각수 유입구(11) 및 유출구(12)를 형성하고, 팁(30)의 순환로 유입부(32)와 접하는 냉각수 순환로(13)에 냉각수를 순환시키는 토치 몸체(10)로 구성한 것을 특징으로 하는, 간접 냉각방식을 이용하는 용접기의 프라즈마 토치.The cooling water inlet 11 and the outlet 12 are formed so that the cold water can be supplied to the circulation path inlet 32 formed at the tip 30, and contacted with the circulation path inlet 32 of the tip 30. Plasma torch of the welding machine using the indirect cooling system, characterized by comprising a torch body (10) for circulating the cooling water in the cooling water circulation path (13).
KR1020080010112A 2008-01-31 2008-01-31 Plasma torch of welding machine KR20090084121A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101669948B1 (en) 2015-09-17 2016-10-28 주식회사 시흥에스티 Cooling system for welding torch using argon gas
CN113993264A (en) * 2021-11-05 2022-01-28 北京环境特性研究所 Plasma torch and cooling method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101669948B1 (en) 2015-09-17 2016-10-28 주식회사 시흥에스티 Cooling system for welding torch using argon gas
CN113993264A (en) * 2021-11-05 2022-01-28 北京环境特性研究所 Plasma torch and cooling method thereof
CN113993264B (en) * 2021-11-05 2023-11-14 北京环境特性研究所 Plasma torch and cooling method thereof

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