KR900004596B1 - Method of manufacturing heat exchangers - Google Patents

Method of manufacturing heat exchangers Download PDF

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Publication number
KR900004596B1
KR900004596B1 KR1019840002808A KR840002808A KR900004596B1 KR 900004596 B1 KR900004596 B1 KR 900004596B1 KR 1019840002808 A KR1019840002808 A KR 1019840002808A KR 840002808 A KR840002808 A KR 840002808A KR 900004596 B1 KR900004596 B1 KR 900004596B1
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KR
South Korea
Prior art keywords
heat absorbing
heating body
heat
welding
inert gas
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KR1019840002808A
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Korean (ko)
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KR850001040A (en
Inventor
가쓰미 이나가끼
Original Assignee
린나이 가부시기가이샤
나이또오 스스무
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    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers

Abstract

The method of manufacturing heat exchanger used for boilers, involves welding heat absorber to heating tube with inert gas. The method comprises inserting an assembly of heat sink fins into a heating barrel and inert-arc-welding only the upper parts of the heat sink fins to the barrel.

Description

열교환기의 제조방법Manufacturing method of heat exchanger

제1도는 종래 방법을 설명하는 열교환기의 사시도.1 is a perspective view of a heat exchanger illustrating a conventional method.

제2도는 흡열핀과 가열몸체간의 접합부의 절단측면도.2 is a cutaway side view of the junction between the heat absorbing fin and the heating body.

제3도는 본 발명 방법의 실시에 사용하는 장치의 일실시예의 사시도.3 is a perspective view of one embodiment of an apparatus for use in practicing the method of the present invention.

제4도는 그 작동을 설명하는 흡열핀과 가열몸체간의 접합부의 절단 측면도.Figure 4 is a cutaway side view of the junction between the heat absorbing fin and the heating body illustrating its operation.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 가열몸체 2 : 흡열체1: heating body 2: heat absorbing body

3 : 흡열핀3: endothermic fin

본 발명은 온수기용등의 열교환기의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a heat exchanger such as for a water heater.

종래 이러한 종류의 열교환기는 가열몸체에 복수개의 흡열핀을 나란히 설치한 흡열체를 삽입하여서, 이를 이 가열몸체에 부착한 후, 내구성 향상을 위해 납도금등의 도금처리를 시공하여서 제조되는데, 이 경우 흡열체와 가열몸체는 제1도 및 제2도에 표시하는 바와같이 가열몸체(a)와 이에 내접하는 흡열체(b)의 각 흡열핀(c)의 단부와의 사이에 사전에 납땜재료(d)를 셋트하고, 적당한 흡열핀(c)를 도면중(A)로 표시하는 부분에서 토오치 땜질이나, 초음파 용접에 의해 가열몸체(a)에 임시 부착한 후, 열교환기의 각 부분의 땜질을 위해 행하는 로중(爐中)땜질로 서로 부착되는 것이 일반적이다.Conventionally, this type of heat exchanger is manufactured by inserting a heat absorbing body in which a plurality of heat absorbing fins are installed side by side in a heating body, attaching the heat absorbing body to the heating body, and then applying a plating treatment such as lead plating to improve durability. As shown in FIGS. 1 and 2, the heat absorbing body and the heating body are made of a solder material in advance between the heating body a and the end portions of the heat absorbing fins c of the heat absorbing body b inscribed thereto. d) is set, and the appropriate endothermic fins (c) are temporarily attached to the heating body (a) by torch soldering or ultrasonic welding at the portion indicated in the drawing (A), and then soldering each part of the heat exchanger. It is common to adhere to each other by furnace soldering performed for this purpose.

가열몸체(a)와 각 흡열핀(c)사이에 납땜재료(d)를 셋트하여서 노중 땜질에 의해 양자를 부착시키는 것은 토오치 땜질이나 초음파 용접의 경우, 용접부분으로부터의 열전도에 의해 타부분에서 가열몸체(a)와 흡열핀(c)의 사이에 열변헝에 의한 틈새가 생겨, 이대로는 도금이 잘 안되고 또, 사용시 연소열이 틈새로부터 새어 열교환 효율이 나쁘게 되기 때문이다. 또한, 전용의 초음파 용접기를 사용하여서, 각 흡열핀(c)를 동시에 가열몸체(a)에 용접할 수 있도록 하면, 가열몸체(a)와 각 흡열핀(c)는 틈새가 없이 부착되고, 양자간에 땜재료(d)를 셋트할 필요는 없어지나, 열교환기의 기종에 대해여 복수의 용접기를 준비할 필요가 있어, 설비비가 높아진다.The brazing material (d) is set between the heating body (a) and each of the heat absorbing fins (c) to attach them by brazing in the furnace. In the case of torch soldering or ultrasonic welding, the other part is formed by heat conduction from the welding part. This is because a gap due to heat deflection occurs between the heating body a and the heat absorbing fin c, and thus, plating is not well performed, and combustion heat leaks from the gap during use, resulting in poor heat exchange efficiency. In addition, when the endothermic fins c can be welded to the heating body a at the same time by using an exclusive ultrasonic welding machine, the heating body a and the endothermic fins c are attached without a gap, and both It is not necessary to set the solder material d between them, but it is necessary to prepare a plurality of welding machines for the model of the heat exchanger, resulting in high equipment cost.

본 발명은, 이상의 점에 비추어, 가열몸체와 흡열핀 사이에 땜재료를 땜재료를 셋트할 필요를 없게하여서, 생산성을 향상시킴과 동시에 기종변경에도 용이하게 대처할 수 있는 다용성이 있는 열교환기의 제조방법을 제공하는 것을 그 목적으로 하는 것으로, 가열몸체에 복수개의 흡열핀을 나란히 설치한 흡열체를 삽입하고, 이를 가열몸체에 부착한 후, 도금처리를 시행하도록한 열교환기의 제조방법에 있어서, 이 흡열체를 각 흡열핀에서 불활성 가스 아아크용접에 의해, 가열몸체에 부착시키도록한 것을 특징으로 한다.SUMMARY OF THE INVENTION In view of the above, the present invention eliminates the need for a solder material to be set between a heating body and a heat absorbing fin, thereby improving productivity and easily coping with a change in model. It is an object of the present invention to provide a method for manufacturing a heat exchanger in which a heat absorbing body having a plurality of heat absorbing fins installed side by side is inserted in a heating body, and the heat absorbing body is attached to the heating body and then plated. And the endothermic body is attached to the heating body by inert gas arc welding at each endothermic fin.

이어서, 본 발명을 제3도 이하에 표시하는 실시예에 대해 설명한다.Next, the Example which shows this invention below FIG. 3 is demonstrated.

도면에서 (1)은 가열몸체, (2)는 이 가열몸체(1)에 삽입되는 흡열체를 표시하고, 이 흡열체(2)는 복수개의 흡열핀(3)을 나란히 설치하여 이에 열매체가 통과하는 흡열파이프(4)를 내장하여서 되는 것으로서, 이 흡열체(2)를 가열몸체(1)에 삽입 셋트한 상태에서 제3도에 도시한 바와같이 용접 테이블(5)상에 위치시키고, 가열몸체(1)을 지지체(6)에 의해 양측에서 누르고, 이 테이블(5)을 전후 방향으로 이동시켜 가면서, 그 상방에 설치된 한쌍의 불활성 가스 아아크 용접용의 예를들면 TIG 용접토오치(7)(7)에 의해 가열몸체(1)과 접촉하는 각 흡열핀(3)의 양단의 접합부를 제4도에 표시하는 바와같이 가열몸체(1)에 차례로 용접시키도록 하였다. 이 용접 토오치(7)는 선단에 불황성 가스를 분출하는 노즐(7a)을 구비하고, 이에 삽입시킨 텅스텐 전극(7b)에 의해 불황성 가스 분위기 중에서 아아크 용접을 행하도록 작동하는 것으로서, 용접부(A)는 불황성 가스에 의해, 냉각 되어서 다른부분으로의 열전도에 의한 열변형의 발생이 방지되고, 이리하여 각 흡열핀(3)은 가열몸체(1)에 차례로 틈새없이 용접된다.In the drawing, reference numeral 1 denotes a heating body, and 2 denotes a heat absorbing body inserted into the heating body 1, and the heat absorbing body 2 is provided with a plurality of heat absorbing fins 3 side by side, and a heat medium passes through the heat absorbing body. The heat absorbing pipe 4 is built-in. The heat absorbing body 2 is placed on the welding table 5 as shown in FIG. TIG welding torch 7, for example, for a pair of inert gas arc welding provided thereon while pressing (1) from both sides by the support body 6 and moving this table 5 forward and backward. 7), the joints of both ends of each heat absorbing fin 3 in contact with the heating body 1 were welded to the heating body 1 in turn as shown in FIG. The welding torch 7 has a nozzle 7a for ejecting the inert gas at the tip, and is operated to perform arc welding in an inert gas atmosphere by the tungsten electrode 7b inserted therein. A) is cooled by the inert gas to prevent the occurrence of thermal deformation due to heat conduction to other parts, whereby each endothermic fin 3 is welded to the heating body 1 without any gap in turn.

그후, 가열몸체(1)에 배관부재를 부착하여서, 이들을 노중 땜질하나, 이때 가열몸체(1)과 각 흡열핀(3) 사이에 종래와 같이 땜재료를 셋트하여 두지않아도, 그후의 도금처리에 있어 도금의 시공이 나빠지는 일은 없다.Thereafter, a pipe member is attached to the heating body 1, and these are brazed in the furnace, but at this time, even if a solder material is not set between the heating body 1 and each heat absorbing fin 3 as in the prior art, the subsequent plating process is performed. There is not bad construction of plating.

또한, 기종변경이 있어서는 용접토오치(7)의 배치위치를 기종에 맞추어서, 상하 좌우로 조절하면 된다.In addition, when changing a model, what is necessary is just to adjust the arrangement position of the welding torch 7, up, down, left, and right according to a model.

이와같이 본 발명에 의하면, 가열몸체에 삽입 셋트한 흡열체를 각 흡열핀에서 불황성 가스 아아크 용접에 의해, 가열몸체에 부착하는 것으로서, 불황성 가스에 의한 냉각작용으로 열변형의 발생의 저지되어서, 이 각 흡열핀과 이 가열몸체는 차례로 틈새없이 용접되고, 양자간에 땜재료를 셋트하여서 노중 땜질에 의해 양자를 부착하지 않아도, 도금처리를 양호하게 행할 수가 있어, 땜재료의 셋트작업을 생략할 수 있고, 생산성이 향상됨과 동시에 열교환기의 기종변경에도 용이하게 대처할 수 있는 효과를 갖는다.Thus, according to the present invention, the heat absorbing body inserted into the heating body is attached to the heating body by inert gas arc welding at each heat absorbing fin, and the occurrence of thermal deformation is prevented by the cooling action by the inert gas. Each of the heat absorbing fins and the heating body are sequentially welded without any gaps, and the soldering material is set between the two, so that the plating process can be performed well without attaching the protons by brazing in the furnace, so that the work of setting the soldering material can be omitted. In addition, the productivity is improved, and at the same time, it is possible to easily cope with changing the model of the heat exchanger.

Claims (1)

가열몸체(1)에 흡열핀(3)의 복수개른 나란히 설치한 흡열체(2)를 삽입하여서, 이를 가열몸체(1)에 부착한 후, 도금처리를 시행토록한 열교환기의 제조방법에 있어서, 흡열체(2)를 각 흡열핀(3)에서 불활성 가스 아아크 용접에 의해 가열몸체(1)에 부착시키도록한 것을 특징으로 하는 열교환기의 제조방법.In the method of manufacturing a heat exchanger in which a plurality of heat absorbing bodies (2) of the heat absorbing fins (3) installed side by side are inserted in the heating body (1), and then attached to the heating body (1), the plating process is performed. And the heat absorbing body (2) is attached to the heating body (1) by inert gas arc welding at each heat absorbing fin (3).
KR1019840002808A 1983-07-27 1984-05-23 Method of manufacturing heat exchangers KR900004596B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58135931A JPS6030582A (en) 1983-07-27 1983-07-27 Production of heat exchanger
JP58-135931 1983-07-27

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Publication Number Publication Date
KR850001040A KR850001040A (en) 1985-03-14
KR900004596B1 true KR900004596B1 (en) 1990-06-30

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KR1019840002808A KR900004596B1 (en) 1983-07-27 1984-05-23 Method of manufacturing heat exchangers

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KR (1) KR900004596B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020054068A (en) * 2000-12-27 2002-07-06 김진곤 Haet exchanger for gas boiler and manufacture method thereof
JP2016112599A (en) * 2014-12-16 2016-06-23 日本パーカライジング株式会社 Joint device, joint method, manufacturing method of panel type heat exchanger, and cooling device
CN106216861B (en) * 2016-09-19 2018-02-23 东莞恒奥达热能科技有限公司 A kind of double plate laser welding automatic positioning equipments

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JPS5345407B2 (en) * 1973-07-24 1978-12-06

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JPH0152114B2 (en) 1989-11-07
JPS6030582A (en) 1985-02-16
KR850001040A (en) 1985-03-14

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