JPH0199718A - Method for manufacturing heat transfer pipe - Google Patents
Method for manufacturing heat transfer pipeInfo
- Publication number
- JPH0199718A JPH0199718A JP25557987A JP25557987A JPH0199718A JP H0199718 A JPH0199718 A JP H0199718A JP 25557987 A JP25557987 A JP 25557987A JP 25557987 A JP25557987 A JP 25557987A JP H0199718 A JPH0199718 A JP H0199718A
- Authority
- JP
- Japan
- Prior art keywords
- mesh
- strip
- melting point
- heat transfer
- low melting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000012546 transfer Methods 0.000 title abstract description 7
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 17
- 239000000956 alloy Substances 0.000 claims abstract description 17
- 238000002844 melting Methods 0.000 claims abstract description 17
- 230000008018 melting Effects 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は伝熱管の製造方法に関するものであり、特に冷
凍機や冷暖房装置に使用される伝熱管について、内面又
は外面にメツシュ層を有するものの製造方法に関するも
のである。Detailed Description of the Invention "Industrial Application Field" The present invention relates to a method for manufacturing heat exchanger tubes, and particularly to heat exchanger tubes used in refrigerators and air-conditioning equipment that have a mesh layer on the inner or outer surface. This relates to a manufacturing method.
「従来の技術」 例えば特開昭５５−１１６０９８号公報には。"Conventional technology" For example, in JP-A-55-116098.
管内壁面に多孔質層を形成する一手段として、管内壁面
に金網を固着する技術か開示されている。As one means for forming a porous layer on the inner wall surface of a pipe, a technique has been disclosed in which a wire mesh is fixed to the inner wall surface of the pipe.
「発明が解決しようとする問題点」
近時特に空ＴＡ機器等には、高性箋化及び小型化、軽量
化に伴なって管径ｌＯ■麿以下のような小径かつ肉薄（
０，３ｇ＋ｎ以下）な管が使用される傾向にあるが、前
記公報に記載の製造方法のように、管内壁面に金網その
他のメツシュを固着する手段では、小径な伝熱管や肉薄
な伝熱管を製造するのか困難であるとともに、メツシュ
を管内壁面に固着するのに手間がかかり製造コストが嵩
む欠点があった。``Problems to be solved by the invention'' In recent years, air TA equipment, etc., have become more durable, smaller, and lighter.
0.3g+n or less), but the manufacturing method described in the above-mentioned publication, in which wire gauze or other mesh is fixed to the inner wall surface of the tube, does not allow the use of small-diameter or thin-walled heat exchanger tubes. It is difficult to manufacture, and it takes time and effort to fix the mesh to the inner wall surface of the pipe, which increases manufacturing costs.
また、一般的な伝熱管の製造方法として、金属帯板の一
面に加工ロールにより一定形状の凹凸を形成した後、該
帯板を幅方向に丸めてその両縁辺を溶接する手段がるが
、この方法によると、銅合金や鉄系金属のように帯板が
固い材質の場合には凹凸の成形加工が極めて困難である
。In addition, as a general method for manufacturing heat exchanger tubes, there is a method of forming irregularities of a certain shape on one side of a metal strip using a working roll, then rolling the strip in the width direction and welding both edges of the strip. According to this method, when the strip is made of a hard material such as a copper alloy or iron-based metal, it is extremely difficult to form the irregularities.
本発明の目的は、このような欠点を改善した伝熱管の製
造方法を提供することにある。An object of the present invention is to provide a method for manufacturing a heat exchanger tube that improves these drawbacks.
「問題点を解決するための手段」
本発明方法はｒＷ述の目的を達成するため、金属帯板の
片面又は両面にメツシュ又は多孔シートを定着させる工
程と、前記金属帯板を幅方向に丸めて該帯板の両縁辺を
溶接する工程とを採択したものである。"Means for Solving the Problems" In order to achieve the object described in rW, the method of the present invention includes a step of fixing a mesh or a porous sheet on one or both sides of a metal strip, and rolling the metal strip in the width direction. This process involves welding both edges of the strip.
「作用」
金属帯板の表面に定着されたメツシュ又は多孔シートに
より、伝熱管の内面又は外面にメツシュ又は多孔形状に
対応した凹凸が形成され、媒体液の沸騰及び凝縮を促進
させる。"Function" The mesh or porous sheet fixed on the surface of the metal strip forms irregularities corresponding to the mesh or porous shape on the inner or outer surface of the heat transfer tube, promoting boiling and condensation of the medium liquid.
「実施例」
以下図面を参照しながら本発明の好適な実施例を説明す
る。"Embodiments" Preferred embodiments of the present invention will be described below with reference to the drawings.
アンコイラ−１０，２０，３０をそれぞれの回転軸心が
平行になる状態に設け、繰り出しロール４．４により、
アンコイラ−１０から肉厚０．２膳膳１幅３３麿Ｉの銅
製の金属帯板ｌを、アンコイラ−２０から輻５〜２１程
度のハンダよりなる定間隔の数条の低融点合金２を、ア
ンコイラーコ０から線径が０．１９■膳、帯板ｌと同幅
で、菱形メツシュて４０メツシュ程度の亜鉛メツキ鋼線
よりなる全屈メツシュ３を、ぞれぞれ下方より上記の順
に重ねた状ぶて定速で訝り出す。The uncoilers 10, 20, and 30 are provided so that their rotation axes are parallel to each other, and the uncoilers 4.4 are
From the uncoiler 10, a copper metal strip 1 with a wall thickness of 0.2 mm and a width of 33 mm is placed, and from the uncoiler 20, several low melting point alloy strips 2 made of solder with a diameter of about 5 to 21 are placed at regular intervals. Fully bent meshes 3 made of galvanized steel wire with a wire diameter of 0 to 0.19mm, the same width as the strip L, and a diamond-shaped mesh of about 40 meshes are stacked from below in the above order. I start to wonder at a constant speed.
低融点合金２は、好ましくは第１図及び第２図のように
１幅の狭いものを金属帯板ｌの幅内で均等に配置する状
態に繰り出し、さらに好ましくは、金属帯板ｌの両縁に
葛ける低融点合金２は他の位こにあるものより輻狭いも
のを使用する。The low melting point alloy 2 is preferably fed out in a state in which one narrow piece is arranged evenly within the width of the metal strip l, as shown in FIGS. The low melting point alloy 2 used at the edges is narrower than those in other places.
金Ｊｉｊｔ ｈｆ板ｌとメツシュ３の間に低融点合金２
を部分的に挟んだ状態で訝り出しなから、その繰り出し
方向前方位置で、加圧ロール５，５により、金属帯板１
とメツシュ３とを低融点合金２を介し圧着により仮り止
めして複合シート１′を形成し、次いで、該複合シート
ｌ°を合金２の融点以上の温度（この例では２９０〜３
００℃）の加熱炉６内に通し、低融点合金２を融解させ
ることにより複合シートｌ゛における金属帯板１の上面
にメツシュ３を定着させる。・
前述の工程が終了した後、繰り出される複合シート１゛
を各種成形ロール群７０〜７７により幅方向へ順次丸め
、溶接用舗道コイルの内を通過させて管状に丸めた複合
シート１′の両縁辺を溶接し、伝熱管１１を製造する。Low melting point alloy 2 between gold Jijt hf plate l and mesh 3
Since the metal strip 1 is partially sandwiched, the pressure rolls 5, 5 press the metal strip 1 at the forward position in the feeding direction.
and mesh 3 are temporarily fixed by pressure bonding through the low melting point alloy 2 to form a composite sheet 1', and then the composite sheet 1 is heated to a temperature higher than the melting point of the alloy 2 (in this example, 290 to 3
The mesh 3 is fixed on the upper surface of the metal strip 1 in the composite sheet l' by passing it through a heating furnace 6 at a temperature of 00°C to melt the low melting point alloy 2. - After the above-mentioned process is completed, the unrolled composite sheet 1' is successively rolled in the width direction by various forming roll groups 70 to 77, and passed through a welding pavement coil to form both sides of the composite sheet 1' rolled into a tubular shape. The edges are welded to produce the heat exchanger tube 11.
最終的には、伝熱管１１を適当な整形ロール７８゜７９
により、あるいは、図示しないダイスに案内して冷間空
引きすることにより、外径９．５：ｌａｍのほぼ円形断
面の伝熱管に成形する。Finally, the heat exchanger tube 11 is rolled with a suitable shaping roll 78°79
Alternatively, the tube is formed into a heat transfer tube having an outer diameter of 9.5 lam and a substantially circular cross section by being guided through a die (not shown) and cold-drawn.
上記製造方法により、第３図のように内周壁面に菱形メ
ツシュ形状の微細な凹凸１２を有し、フレオン等の媒介
液の沸凰、凝縮を促進する伝熱性の優れた伝熱管１１を
製造することができる。また。By the above manufacturing method, a heat transfer tube 11 is manufactured which has fine irregularities 12 in the shape of a rhombus mesh on the inner circumferential wall surface as shown in FIG. can do. Also.
上記実施例の製造方法によれば、管内壁面にメツシュな
ｍ着する従来方法に比べ、より肉薄て小径な伝熱管を低
コストで量産することかできるし。According to the manufacturing method of the above embodiment, thinner and smaller diameter heat transfer tubes can be mass-produced at a lower cost than the conventional method of attaching a mesh to the inner wall surface of the tube.
鉄系合金その他の固い材料で伝熱管を製造する場合でも
、極めて容易に凹凸を形成することができる。Even when manufacturing heat exchanger tubes from iron-based alloys or other hard materials, unevenness can be formed extremely easily.
本発明方法においては、メツショの形状は特に限定され
ない、また、メツシュ３に代えてｅ細な孔を密に形成し
た多孔シートを使用することができるし、低融点合金２
を金属帯板ｌとメツシュ３又は多孔シートの間へ部分的
に介在させることに代えて、帯板ｌの幅と同幅の低融点
合金２を使用し、両者ｌと２の間の全面に低融点合金２
を介在させるように構成しても実施することができる。In the method of the present invention, the shape of the mesh is not particularly limited, and instead of the mesh 3, a porous sheet with densely formed small holes can be used, and the low melting point alloy 2
Instead of intervening partially between the metal strip l and mesh 3 or porous sheet, a low melting point alloy 2 with the same width as the strip l is used, and the entire surface between both l and 2 is used. Low melting point alloy 2
It is also possible to implement the configuration in such a manner that the
また、メツシュ３等を金属帯板１両面に定着させること
かできるほか、メツシュ３等を金属帯板１の面に定着さ
せるには、前述のように低融点合金を使用することに代
えて、帯板ｌヘメッシュ３等をスポット溶接によって定
着させることができる。Moreover, in addition to being able to fix the mesh 3 etc. on both sides of the metal strip 1, in order to fix the mesh 3 etc. on the surface of the metal strip 1, instead of using a low melting point alloy as described above, The mesh 3 etc. can be fixed to the strip plate l by spot welding.
さらに、メツシュ３等を定着した金属帯板ｌを丸める手
段は前記実施例の構成に限るものではなく、その両縁辺
を溶接する手段も前述のような高周波誘導溶接に限らず
、他の公知の溶接法が好適に用いられる。Further, the means for rolling up the metal strip l on which the mesh 3 etc. are fixed is not limited to the configuration of the above embodiment, and the means for welding both edges thereof is not limited to the above-mentioned high frequency induction welding, but may be any other known method. A welding method is preferably used.
「発明の効果」
本発明方法によれば、内面にメツシュや多孔シ−トによ
る微塵な凹凸を有し、かつ、より小径で肉薄の伝熱管を
低コストで量産することかてきるほか、硬い材質で伝熱
管を製造する場合でも、その内周面又は外周面に容易に
凹凸を形成することかできる。``Effects of the Invention'' According to the method of the present invention, it is possible to mass-produce heat exchanger tubes with fine irregularities on the inner surface due to mesh or porous sheets, and which are smaller in diameter and thinner at a lower cost. Even when a heat exchanger tube is manufactured using a material, it is possible to easily form irregularities on the inner peripheral surface or outer peripheral surface of the tube.
第１図は本発明方法の実施例における伝熱管の製造工程
を示す概略斜視図、第２図は第１図の実施例における金
属帯板に対する低融点合金の配置を示す部分平面図、第
３図は第１図の実施例で製造された伝熱管の部分拡大断
面図である。
主要図中符号の説明
１は金ｆ！帯板、１゛は複合シート、１１は製造された
伝熱管、２は低融点合金、３はメツシュ、１０゜２０、
３０はアンコイラ−１４は繰り出しロール、５は加圧ロ
ール、６は加熱炉、７０〜７７は成形ロール、９は誘導
コイルであ“る、、：）FIG. 1 is a schematic perspective view showing the manufacturing process of a heat exchanger tube in an embodiment of the method of the present invention, FIG. 2 is a partial plan view showing the arrangement of a low melting point alloy on a metal strip in the embodiment of FIG. 1, and FIG. The figure is a partially enlarged sectional view of the heat exchanger tube manufactured in the embodiment of FIG. 1. Explanation of the symbol in the main figure 1 is gold f! Band plate, 1゛ composite sheet, 11 manufactured heat exchanger tube, 2 low melting point alloy, 3 mesh, 10゜20,
30 is an uncoiler, 14 is a feeding roll, 5 is a pressure roll, 6 is a heating furnace, 70 to 77 are forming rolls, and 9 is an induction coil.
Claims (2)
シートを定着させる工程と、前記金属帯板を幅方向に丸
めて該帯板の両縁辺を溶接する工程とを含むことを特徴
とする伝熱管の製造方法。(1). Production of a heat exchanger tube comprising the steps of fixing a mesh or porous sheet on one or both sides of a metal strip, and rolling the metal strip in the width direction and welding both edges of the strip. Method.
者の間において全面にわたり又は部分的に低融点合金を
溶融させて定着する、特許請求の範囲第１項に記載の伝
熱管の製造方法。(2). The method for manufacturing a heat exchanger tube according to claim 1, wherein the metal strip and the mesh or porous sheet are fixed by melting a low melting point alloy over the entire surface or partially between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62255579A JPH0787942B2 (en) | 1987-10-09 | 1987-10-09 | Heat transfer tube manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62255579A JPH0787942B2 (en) | 1987-10-09 | 1987-10-09 | Heat transfer tube manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0199718A true JPH0199718A (en) | 1989-04-18 |
| JPH0787942B2 JPH0787942B2 (en) | 1995-09-27 |
Family
ID=17280678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62255579A Expired - Fee Related JPH0787942B2 (en) | 1987-10-09 | 1987-10-09 | Heat transfer tube manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0787942B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105540A (en) * | 1988-09-30 | 1992-04-21 | Ford Motor Company | Tube method of making a composite heat exchanger tube |
| KR100528467B1 (en) * | 2002-08-20 | 2005-11-16 | 주식회사 유니온금속 | Fin & Tube type Heat Exchanger using Brazing and Method for manufacturing the same |
| US20080290138A1 (en) * | 2007-05-22 | 2008-11-27 | David Myron Lineman | Method for bonding refractory ceramic and metal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5930485A (en) * | 1982-08-10 | 1984-02-18 | Dainichi Nippon Cables Ltd | Production of pipelike object |
-
1987
- 1987-10-09 JP JP62255579A patent/JPH0787942B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5930485A (en) * | 1982-08-10 | 1984-02-18 | Dainichi Nippon Cables Ltd | Production of pipelike object |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105540A (en) * | 1988-09-30 | 1992-04-21 | Ford Motor Company | Tube method of making a composite heat exchanger tube |
| KR100528467B1 (en) * | 2002-08-20 | 2005-11-16 | 주식회사 유니온금속 | Fin & Tube type Heat Exchanger using Brazing and Method for manufacturing the same |
| US20080290138A1 (en) * | 2007-05-22 | 2008-11-27 | David Myron Lineman | Method for bonding refractory ceramic and metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0787942B2 (en) | 1995-09-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |