JPH0468078B2 - - Google Patents
Info
- Publication number
- JPH0468078B2 JPH0468078B2 JP58113943A JP11394383A JPH0468078B2 JP H0468078 B2 JPH0468078 B2 JP H0468078B2 JP 58113943 A JP58113943 A JP 58113943A JP 11394383 A JP11394383 A JP 11394383A JP H0468078 B2 JPH0468078 B2 JP H0468078B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- brazing
- copper
- strength
- manganese
- 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.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 34
- 239000011572 manganese Substances 0.000 claims description 20
- 238000005219 brazing Methods 0.000 claims description 19
- 239000010949 copper Substances 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 238000005304 joining Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000001603 reducing effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 229910000914 Mn alloy Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910017566 Cu-Mn Inorganic materials 0.000 description 3
- 229910017871 Cu—Mn Inorganic materials 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 150000002927 oxygen compounds Chemical class 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Classifications
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3026—Mn as the principal constituent
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明は金属管の製造や金属管同志の接続に適
した金属部材の接合方法に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for joining metal members suitable for manufacturing metal tubes and connecting metal tubes together.
(ロ) 従来技術
一般にステンレス等の鋼板を丸めて金属管を製
造したり、鋼管同志を接続する場合、従来は鋼板
や鋼管の接合箇所に銅メツキをしてろう付けする
には、炉中の雰囲気温度を1100〜1150℃と高くし
なければならない為、鋼板や鋼管の強度が劣化し
てしまう虞れがあり、しかも炉内をH2やCOなど
の還元ガスの雰囲気にしなければならない為、製
造コストが高く、且つ爆発の危険性を有してい
た。(b) Prior art Generally, when manufacturing metal pipes by rolling steel plates such as stainless steel or connecting steel pipes, conventionally, the joints of the steel plates and steel pipes were plated with copper and brazed in a furnace. Because the ambient temperature must be as high as 1,100 to 1,150℃, there is a risk that the strength of the steel plates and steel pipes will deteriorate.Furthermore, the inside of the furnace must be in an atmosphere of reducing gases such as H 2 and CO. Manufacturing costs were high and there was a risk of explosion.
又、ろう材として、85Cu−Mn合金が提示され
ている（参照：「ろう接の生産技術」1982年、第
78頁、溶接新聞社発行）が、Mnが15wt％以下で
ある為に炉内の雰囲気温度（溶融温度よりも約50
〜100℃高く必要）が1000℃以上となり、接合さ
れる金属部材の強度が低下して虞れがあつた。 In addition, 85Cu-Mn alloy has been proposed as a brazing material (see: "Brazing Production Technology" 1982, No.
p. 78, Published by Welding Shimbunsha), since the Mn content is less than 15wt%, the atmospheric temperature in the furnace (approximately 50% lower than the melting temperature) is
(need to be ~100℃ higher) exceeded 1000℃, and there was a risk that the strength of the metal parts to be joined would decrease.
又、マンガンを含有し、残部を本質的に銅とし
た合金を用いて、不活性ガスの雰囲気中でろう接
することが、特公昭54−7730号公報、特公昭55−
4827号公報、特公昭55−11439号公報、特公昭58
−31275号公報に開示されているが、何れも雰囲
気温度を下げる為にアルミニウム、鉄、亜鉛等の
何れか一つもしくは全部を混入しており、製造コ
ストが高くつく不具合さを有していた。 Furthermore, using an alloy containing manganese and the remainder being essentially copper, brazing in an inert gas atmosphere is disclosed in Japanese Patent Publications No. 7730/1983 and Japanese Patent Publication No. 55/1983.
Publication No. 4827, Special Publication No. 11439, Special Publication No. 11439, Special Publication No. 1982
-Although it is disclosed in Publication No. 31275, all of them contain one or all of aluminum, iron, zinc, etc. in order to lower the ambient temperature, and have a defect that increases manufacturing costs. .
(ハ) 発明の目的
本発明は金属部材の強度が低下するのを抑えな
がら低コストで、且つ、安全に接合でき、しかも
高い接合強度が得られる金属部材の接合方法を提
供するものである。(C) Object of the Invention The present invention provides a method for joining metal members that can be joined safely at low cost while suppressing a decrease in the strength of the metal members, and can provide high joining strength.
(ニ) 発明の構成
本発明はろう材として20〜45wt％のマンガン
（Mn）と、残りを銅（Cu）のみとした合金を用
いる一方、炉内をアルゴン（Ar）もしくは窒素
（N2）などの酸素（O2）を含まない不活性ガスの
雰囲気にして金属部材同志を溶着するようにした
もので、銅（Cu）のみに20〜45wt％のマンガン
（Mn）を添加したことにより、ろう材の融点が
下がつて雰囲気温度を金属部材の強度の低下が抑
えられる1000℃以下に下げることができ、しかも
マンガン（Mn）が酸素との結合に強く金属部材
の表面の酸素化合物から酸素をうばう還元作用を
行なつて雰囲気内は還元ガスの代わりに安価で、
且つ安全な不活性ガスを使えるようにしたもので
ある。(d) Structure of the Invention The present invention uses an alloy containing 20 to 45 wt% manganese (Mn) and the remainder copper (Cu) as a brazing material, while the inside of the furnace is filled with argon (Ar) or nitrogen (N 2 ). Metal parts are welded together in an inert gas atmosphere that does not contain oxygen (O 2 ), such as copper (Cu), and by adding 20 to 45 wt% of manganese (Mn) to copper (Cu), The melting point of the brazing filler metal is lowered, making it possible to lower the ambient temperature to below 1000°C, which prevents a decrease in the strength of the metal component.Moreover, manganese (Mn) is strong in bonding with oxygen, and oxygen is removed from the oxygen compounds on the surface of the metal component. It is a cheap substitute for reducing gas in the atmosphere by performing a reducing action that protects
Moreover, it is possible to use safe inert gas.
(ホ) 実施例
本発明の一実施例を第１図、第２図に基づいて
説明すると、１はステンレス等の鋼板や鉄板から
なる金属板で、第１図の如くこの外表面にCu−
Mn合金製のろう材２をメツキや溶射で付着させ
た後、第２図の如く丸め、ArもしくはN2などの
O2を含まない不活性ガスの雰囲気炉内を通過さ
せながら高周波や電気ヒーター、又はトーチ等で
加熱すると、ろう材２が溶融して金属板１の重合
部３が溶着され、パイプが製造される。(E) Embodiment An embodiment of the present invention will be explained based on FIGS. 1 and 2. Reference numeral 1 is a metal plate made of a steel plate such as stainless steel or an iron plate, and as shown in FIG.
After attaching the Mn alloy brazing material 2 by plating or thermal spraying, round it as shown in Figure 2 and fill it with Ar or N2 .
When heated with a high frequency, an electric heater, a torch, etc. while passing through an atmosphere furnace containing an inert gas that does not contain O 2 , the brazing filler metal 2 is melted and the overlapping part 3 of the metal plate 1 is welded, producing a pipe. Ru.
第３図はCu−Mn合金の特性図で、溶融温度は
Mnが38.5wt％、Cuが残りの61.5wt％の時、870
℃と最も低く、これを境にMnの添加量を変える
と溶融温度が上がることを示している。そして、
Mnが20wt％よりも低く、且つ45wt％よりも高く
なると、溶融温度が950℃以上となつて炉内の雰
囲気温度が金属板１の強度が低下する1000℃より
も高くなる為、少なくともMnの添加量を20〜
45wt％に設定しないと発明の目的が達成できな
いことがわかる。 Figure 3 shows the characteristics of Cu-Mn alloy, and the melting temperature is
When Mn is 38.5wt% and Cu is the remaining 61.5wt%, 870
℃, which is the lowest, and it is shown that changing the amount of Mn added increases the melting temperature beyond this point. and,
When Mn is lower than 20wt% and higher than 45wt%, the melting temperature becomes 950°C or higher, and the atmospheric temperature in the furnace becomes higher than 1000°C, at which the strength of the metal plate 1 decreases. Add amount 20~
It can be seen that the purpose of the invention cannot be achieved unless it is set to 45wt%.
しかも、添加されたMnが酸素との結合に強く
金属板１の表面の酸素化合物から酸素をうばう還
元作用を行なう為、炉内をH2やCOなどの還元ガ
スの雰囲気にする必要はなく、前述の如く不活性
ガスの雰囲気内で充分に溶着することができる。 Moreover, since the added Mn has a strong bond with oxygen and performs a reducing action that removes oxygen from the oxygen compounds on the surface of the metal plate 1, there is no need to create an atmosphere of reducing gas such as H 2 or CO in the furnace. As mentioned above, sufficient welding can be performed in an inert gas atmosphere.
第４図は本発明の他の実施例を示し、ステンレ
ス、鉄、銅等の同種もしくは異種の金属パイプ４
ａ，４ｂ同志を接続する際、ろう材２として20〜
45wt％のMnを含むリング状のCu−Mn合金を用
いたもので、不活性ガスの雰囲気炉中で加熱する
と、ろう材２が溶融し、金属パイプ４ａ，４ｂの
隙間５に流れ込んでこの両パイプは強固に接合さ
れる。 FIG. 4 shows another embodiment of the present invention, in which pipes 4 of the same or different metals such as stainless steel, iron, copper, etc.
When connecting a and 4b, use 20~ as the brazing material 2.
It uses a ring-shaped Cu-Mn alloy containing 45wt% Mn, and when heated in an inert gas atmosphere furnace, the brazing filler metal 2 melts and flows into the gap 5 between the metal pipes 4a and 4b, causing both of them to melt. The pipes are firmly joined.
第５図はろう付強度の試験片の斜視図で、長さ
（ｌ）100mm、幅（ｗ）20mm、厚み（ｔ）２mmの冷
間圧延鋼板（JIS G3141）を２枚用意すると共に
ろう材２として75wt％のCuと25wt％のMnとの
Cu−Mn合金を用い、0.05mmの厚みのろう材２を
介して鋼板５ａ，５ｂを突き合わせ、900℃のAr
ガスの雰囲気中で溶着した後、引張テストを行な
つた結果、ろう付箇所が離れる前に鋼板５ａ，５
ｂが一点鎖線の如く破断し、ろう付強度が充分強
いことが立証された。 Figure 5 is a perspective view of a test piece for brazing strength, in which two cold-rolled steel plates (JIS G3141) with a length (l) of 100 mm, a width (w) of 20 mm, and a thickness (t) of 2 mm are prepared, and a brazing material is 2 with 75wt% Cu and 25wt% Mn
Using a Cu-Mn alloy, steel plates 5a and 5b are butted together through a brazing filler metal 2 with a thickness of 0.05 mm, and Ar
After welding in a gas atmosphere, we conducted a tensile test and found that the steel plates 5a and 5
b broke as shown by the dashed line, proving that the brazing strength was sufficiently strong.
(ヘ) 発明の効果
本発明は、ろう材として20〜45wtのマンガン
と残りを銅のみとした合金を用いたので、アルミ
ニウム、鉄、亜鉛等を混入していた従来の方法よ
りも製造コストを安価にでき、且つマンガンを
15wt％以下とした銅−マンガン合金によるろう
付け接合方法と比較して炉内の雰囲気温度を金属
部材の強度の低下が抑えられる1000℃以下に下げ
ることができると共に強固にろう付けでき、特に
Mnを38.5wt％とすれば870℃と極めて低い温度
で金属部材をろう付け接合することができる。(f) Effects of the Invention The present invention uses an alloy containing 20 to 45 wt of manganese and the rest copper as the brazing filler metal, so the manufacturing cost is lower than the conventional method in which aluminum, iron, zinc, etc. are mixed. It can be made cheaply and contains manganese.
Compared to brazing joint methods using copper-manganese alloys with copper-manganese alloys containing 15wt% or less, the atmosphere temperature in the furnace can be lowered to 1000℃ or less, which suppresses the decrease in the strength of metal parts, and it is possible to braze firmly.
If Mn is 38.5wt%, metal parts can be brazed and joined at an extremely low temperature of 870°C.
併せて、Mnによる還元作用により雰囲気内に
還元ガスを用いない為、爆発等の危険性がなく、
安全に、しかも雰囲気温度の低下と相俟つて安価
にろう付け作業を行なうことができる。 In addition, because no reducing gas is used in the atmosphere due to the reducing effect of Mn, there is no risk of explosion, etc.
Brazing work can be carried out safely and at low cost as the ambient temperature is lowered.
第１図は本発明の一実施例を示す金属板の断面
図、第２図は第１図の金属板を丸めて製造したパ
イプの断面図、第３図は本発明にろう材として用
いたCu−Mn合金の特性図、第４図は本発明の他
の実施例を示す金属パイプの断面図、第５図は本
発明によるろう付強度の試験片の斜視図である。
１…金属板（金属部材）、２…ろう材、４ａ，
４ｂ…金属パイプ（金属部材）。
Fig. 1 is a cross-sectional view of a metal plate showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of a pipe manufactured by rolling the metal plate of Fig. 1, and Fig. 3 is a cross-sectional view of a pipe manufactured by rolling the metal plate of Fig. 1. FIG. 4 is a sectional view of a metal pipe showing another embodiment of the present invention, and FIG. 5 is a perspective view of a test piece for brazing strength according to the present invention. 1... Metal plate (metal member), 2... Brazing material, 4a,
4b...Metal pipe (metal member).
Claims (1)
と、残りを銅（Cu）のみとした合金を用い、不
活性ガスの雰囲気中で加熱して金属部材同志を溶
着してなる金属部材の接合方法。1 20-45wt% manganese (Mn) as a brazing filler metal
A method of joining metal parts by heating the alloy in an inert gas atmosphere and welding the metal parts together, with the remainder being copper (Cu).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11394383A JPS606294A (en) | 1983-06-23 | 1983-06-23 | Joining method of metallic member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11394383A JPS606294A (en) | 1983-06-23 | 1983-06-23 | Joining method of metallic member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS606294A JPS606294A (en) | 1985-01-12 |
| JPH0468078B2 true JPH0468078B2 (en) | 1992-10-30 |
Family
ID=14625082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11394383A Granted JPS606294A (en) | 1983-06-23 | 1983-06-23 | Joining method of metallic member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS606294A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS627640A (en) * | 1985-07-02 | 1987-01-14 | Sumitomo Electric Ind Ltd | Production of glass |
| US6544662B2 (en) * | 1999-10-25 | 2003-04-08 | Alliedsignal Inc. | Process for manufacturing of brazed multi-channeled structures |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547730A (en) * | 1977-06-18 | 1979-01-20 | Matsushita Electric Works Ltd | Tentative fixer for buried box |
| JPS554827A (en) * | 1978-06-26 | 1980-01-14 | Tdk Electronics Co Ltd | High dielectric porcelain composition |
| JPS5511439A (en) * | 1978-07-07 | 1980-01-26 | Fuji Heavy Ind Ltd | Urban waste collecting vehicle |
| JPS5831275A (en) * | 1981-08-18 | 1983-02-23 | 松下冷機株式会社 | Refrigerator |
-
1983
- 1983-06-23 JP JP11394383A patent/JPS606294A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547730A (en) * | 1977-06-18 | 1979-01-20 | Matsushita Electric Works Ltd | Tentative fixer for buried box |
| JPS554827A (en) * | 1978-06-26 | 1980-01-14 | Tdk Electronics Co Ltd | High dielectric porcelain composition |
| JPS5511439A (en) * | 1978-07-07 | 1980-01-26 | Fuji Heavy Ind Ltd | Urban waste collecting vehicle |
| JPS5831275A (en) * | 1981-08-18 | 1983-02-23 | 松下冷機株式会社 | Refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS606294A (en) | 1985-01-12 |
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