JPH01254389A - Welding method for titanium and copper - Google Patents
Welding method for titanium and copperInfo
- Publication number
- JPH01254389A JPH01254389A JP8338088A JP8338088A JPH01254389A JP H01254389 A JPH01254389 A JP H01254389A JP 8338088 A JP8338088 A JP 8338088A JP 8338088 A JP8338088 A JP 8338088A JP H01254389 A JPH01254389 A JP H01254389A
- Authority
- JP
- Japan
- Prior art keywords
- titanium
- copper
- stainless steel
- foil
- electron beam
- 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.)
- Pending
Links
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000010936 titanium Substances 0.000 title claims abstract description 21
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000010949 copper Substances 0.000 title claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 21
- 239000010935 stainless steel Substances 0.000 claims abstract description 20
- 239000011888 foil Substances 0.000 claims abstract description 12
- 238000010894 electron beam technology Methods 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005219 brazing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Welding Or Cutting Using Electron Beams (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、チタン類の部材と銅製の部材とを溶接する方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of welding a titanium member and a copper member.
チタン乃至チタン合金は軽量で機械的強度がある一方で
、加工性が悪い欠点があり、例えば銅製部材との溶接も
従来では不可能とされていた。しかるに例えば耐食性を
要求される熱交換器においては、チタン類の継手用短管
に銅製の熱交換パイプを嵌め合わせて一体に接合する必
要が生じて来ている。従来このような溶接不能な金属ど
うしの接合には専らロー付が行われたが、ロー付は機械
的強度がなく離脱し易い欠点があり隙間からガス漏れを
起こすおそれもあった。Although titanium and titanium alloys are lightweight and have mechanical strength, they have the disadvantage of poor workability, and for example, it has been previously considered impossible to weld them with copper members. However, for example, in heat exchangers that require corrosion resistance, it has become necessary to fit a copper heat exchange pipe into a titanium short joint pipe and join them together. Conventionally, brazing has been used exclusively to join such non-weldable metals, but brazing has the disadvantage that it lacks mechanical strength and tends to come off easily, and there is also the risk of gas leaking from gaps.
本発明は上記従来技術の欠点を解消し、チタン製部材と
銅製部材とを強固に溶接できる方法を提供しようとする
ものである。The present invention aims to eliminate the above-mentioned drawbacks of the prior art and provide a method that can firmly weld a titanium member and a copper member.
本発明は上記目的を達成するため、チタンと銅の接合面
間にステンレス鋼（好ましくはステンレス箔）を介在さ
せ、該ステンレス鋼（好ましくはステンレス箔）を溶融
させるべく電子ビームを照射することを特徴とするもの
である。In order to achieve the above object, the present invention involves interposing stainless steel (preferably stainless steel foil) between the bonding surfaces of titanium and copper, and irradiating an electron beam to melt the stainless steel (preferably stainless steel foil). This is a characteristic feature.
電子ビームの照射により溶融したステンレス箔はチタン
および銅の両金属材に対し共通して融合し、両部材を完
全に融着させる。The stainless steel foil melted by electron beam irradiation commonly fuses with both the titanium and copper metal materials, completely welding the two members together.
次に図面に従い本発明の一実施例を熱交換パイプの端部
接合部分について説明する０図において、１はチタン類
の円筒状短管で、その外周面に段状の浅い溝２を形成し
、この溝中に２０〜１００ ミクロンの厚さの帯状のス
テンレス箔３を巻着する。そしてその外周に銅製の熱交
換パイプ４の開口端を嵌合することによりその嵌合部間
にステンレス箔３を介在させる。そしてこれへ第２図に
矢印で示したように電子ビームを照射し該ステンレス箔
３を溶融させ短管１と熱交換パイプ４とを完全に融合さ
せるものである。なおステンレス鋼（ＳＵＳ３０４．５
ＵＳ３１０等）中にはチタンにも銅にも融合し得るクロ
ムが１６〜２８％含まれているところからその融合が完
全となる。またステンレス鋼中のニッケル成分はクロム
鋼と共にその加工性を向上させている。また、電子ビー
ムは狭い範囲に熱エネルギーを集中できるのでステンレ
ス箔を短時間で局所的に溶融できる。なおこの実施例で
は円筒状短管１がチタン類である場合を説明したが、そ
の逆に円筒状短管１が銅製で熱交換パイプがチタン類で
あってもよいこと勿論である。また、本発明はこのよう
なパイプの溶接に限らず板状物等種々の形状部品の溶接
に適用できる。Next, referring to the drawings, an embodiment of the present invention will be explained with reference to an end joint portion of a heat exchange pipe. In Fig. 0, 1 is a cylindrical short pipe made of titanium, and a shallow stepped groove 2 is formed on the outer circumferential surface of the pipe. A belt-shaped stainless steel foil 3 having a thickness of 20 to 100 microns is wound in this groove. Then, by fitting the open end of a copper heat exchange pipe 4 to its outer periphery, a stainless steel foil 3 is interposed between the fitting portions. This is then irradiated with an electron beam as indicated by the arrow in FIG. 2 to melt the stainless steel foil 3 and completely fuse the short tube 1 and the heat exchange pipe 4. In addition, stainless steel (SUS304.5
US310, etc.) contains 16 to 28% chromium, which can fuse with both titanium and copper, so the fusion is complete. Additionally, the nickel component in stainless steel, together with chromium steel, improves its workability. Furthermore, since the electron beam can concentrate thermal energy in a narrow area, stainless steel foil can be locally melted in a short time. In this embodiment, a case has been described in which the cylindrical short tube 1 is made of titanium, but it goes without saying that the cylindrical short tube 1 may be made of copper and the heat exchange pipe made of titanium. Furthermore, the present invention is applicable not only to welding such pipes but also to welding various shaped parts such as plate-shaped objects.
このように本発明の溶融方法によれば、チタン製部材と
銅製部材とをロー付のような離脱のおそれなく強固に溶
接できるので、チタンと銅の各材料の特質を生かした機
能部品を組み合わせることにより従来にない耐食性等の
優れたものが製造できる有益な効果がある。As described above, according to the melting method of the present invention, a titanium member and a copper member can be firmly welded without the fear of separation as in brazing, so it is possible to combine functional parts that take advantage of the characteristics of each material, titanium and copper. This has the advantageous effect of making it possible to manufacture products with unprecedented corrosion resistance and the like.
図面は本発明の一実施例を示したもので、第１図は溶接
部材の斜視図、第２図は溶着時の縦断面図である。
１・・・短管、２・・・溝、３・・・ステンレス箔、４
・・・熱交換パイプ。
特許出願人 大同特殊鋼株式会社The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of a welding member, and FIG. 2 is a longitudinal sectional view during welding. 1...Short pipe, 2...Groove, 3...Stainless steel foil, 4
...Heat exchange pipe. Patent applicant: Daido Steel Co., Ltd.
Claims (2)
、該ステンレス鋼を溶融させるべく電子ビームを照射す
ることを特徴としたチタンと銅の溶接方法。(1) A method for welding titanium and copper, characterized in that stainless steel is interposed between the joint surfaces of titanium and copper, and an electron beam is irradiated to melt the stainless steel.
載のチタンと銅の溶接方法。(2) The method for welding titanium and copper according to claim 1, wherein the stainless steel is stainless steel foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8338088A JPH01254389A (en) | 1988-04-05 | 1988-04-05 | Welding method for titanium and copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8338088A JPH01254389A (en) | 1988-04-05 | 1988-04-05 | Welding method for titanium and copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01254389A true JPH01254389A (en) | 1989-10-11 |
Family
ID=13800815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8338088A Pending JPH01254389A (en) | 1988-04-05 | 1988-04-05 | Welding method for titanium and copper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01254389A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059443A (en) * | 2010-12-28 | 2011-05-18 | 哈尔滨工业大学 | High-strength electron beam welding process of titanium metal material and copper or copper alloy |
-
1988
- 1988-04-05 JP JP8338088A patent/JPH01254389A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059443A (en) * | 2010-12-28 | 2011-05-18 | 哈尔滨工业大学 | High-strength electron beam welding process of titanium metal material and copper or copper alloy |
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