JPS6247119B2 - - Google Patents
Info
- Publication number
- JPS6247119B2 JPS6247119B2 JP7200681A JP7200681A JPS6247119B2 JP S6247119 B2 JPS6247119 B2 JP S6247119B2 JP 7200681 A JP7200681 A JP 7200681A JP 7200681 A JP7200681 A JP 7200681A JP S6247119 B2 JPS6247119 B2 JP S6247119B2
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- filler metal
- surface roughness
- brazing filler
- weight
- 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
Links
- 238000005219 brazing Methods 0.000 claims description 35
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 23
- 239000000945 filler Substances 0.000 claims description 20
- 229910052709 silver Inorganic materials 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 229910017944 Ag—Cu Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 9
- 238000004439 roughness measurement Methods 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000007872 degassing Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000004154 testing of material 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
- B23K35/3006—Ag as the principal constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conductive Materials (AREA)
Description
本発明は真空中もしくは雰囲気中で使用する銀
ろう材に関する。
従来より金属ろう付には銀ろう、金ろう、パラ
ジウムろう、白金ろう等が用いられている。その
中でも銀ろうは融点が比較的低く作業性がよいこ
と及び価格が比較的低廉であることから特殊な場
合を除いては広く用いられている。銀ろうの中で
も特に72Ag−Cu合金（BAg−８）が電子管や真
空管等の電子部品などをはじめとして多用されて
おり、また、融点あるいは価格を考慮して銀の含
有量を増減させたAg−Cu合金が使用されてい
る。
しかしながら、特に電子工業の分野において
は、ろう付後の工程の関係からろう付後の表面の
平滑度が要求される。それは、ろう付後の表面の
粗さの度合が大きいとその後のはんだ付工程の作
業性が低下し、まためつき工程において前処理の
脱脂が充分に行なわれなかつたり、酸洗処理の酸
が表面に残留して表面が腐食されたりしてめつき
不良をきたす等の問題を起す虞れがあるからであ
り、できるだけ平滑な表面に仕上がるろう材が要
求されている。
そしてろう付表面の粗さの原因は以下の二つに
よるものと考えられる。（）ろう材凝固時に放
出されるガスによつて表面が粗される。（）ろ
う材凝固時の金属組織が微細化しないことにより
粗される。
従つて上記の要因を取除くことによりろう付面
の表面の平滑さは得られることになる。
本発明は上記の要求を満すことを目的とし、
Ag−CuにSi、Pb、Mgの一種または二種以上と
Ｐを加えてろう材とするか、さらにこれにGe、
Mn、Niの一種または二種以上を添加してろう材
とすることにより平滑なろう付表面が得られるこ
とを特徴とする。
以下、本発明について説明する。
なお、以下に説明する元素の配合比はすべて重
量％とする。
Agを50〜95％、Cuを５〜50％含むAg−Cu系
に、(i)Si、Pb、Mgの一種または二種以上を0.05
〜0.5％とＰを0.001〜0.5％加えてろう材とする
か、さらにこれに、(ii)Ge、Mn、Niの一種または
二種以上を0.005〜１％添加してろう材とする。
ここでSi、Pb、Mgは酸素と結びつきの強い金
属元素であつてろう材の製造中および使用中に脱
ガス（脱酸素）効果を有するものであり、その添
加量は0.05％未満であるとその効果を上げること
はできず、0.5％以上になるとろう材の製造加工
上あるいは使用性能上に問題が生じる。またＰも
同様に脱ガス効果の大きい元素であり、かつろう
の流動性を促進する効果の大きいものであつてそ
の添加量は0.001％未満ではそれらの効果を上げ
ることはできず、0.5％以上になると同様にろう
材の製造加工上あるいは使用性能上に問題が生じ
る。
さらに、Ge、Mn、Niはろう材凝固時の金属組
織を微細化する効果を有する元素であつてその添
加量は0.05％未満であるとその効果を上げること
はできず、また１％以上になると
(i) 融点の上昇が大きくろう付使用に不便とな
る。
(ii) 流動性が低下する。
(iii) 加工性が低下して鋳造後の製造工程に支障を
きたす。
等の欠点のうちの少なくとも１つの欠点が生ず
る。
次に本発明の実施例について説明する。
The present invention relates to a silver brazing material used in vacuum or atmosphere. Conventionally, silver solder, gold solder, palladium solder, platinum solder, etc. have been used for metal brazing. Among these, silver solder is widely used except in special cases because it has a relatively low melting point, good workability, and a relatively low price. Among silver solders, 72Ag-Cu alloy (BAg-8) is particularly widely used in electronic components such as electron tubes and vacuum tubes. Cu alloy is used. However, especially in the field of electronics industry, the smoothness of the surface after brazing is required due to the post-brazing process. If the degree of surface roughness after brazing is large, the workability of the subsequent soldering process will be reduced, and the degreasing in the pretreatment may not be carried out sufficiently in the soldering process, or the acid in the pickling process may not be sufficient. This is because there is a risk that the brazing filler metal may remain on the surface and cause problems such as corrosion of the surface and poor plating, and there is a need for a brazing filler metal that can finish as smooth a surface as possible. The roughness of the brazed surface is thought to be due to the following two reasons. () The surface is roughened by the gas released during solidification of the brazing material. () The metal structure during solidification of the filler metal is not refined and becomes rough. Therefore, by removing the above factors, the surface smoothness of the brazed surface can be obtained. The present invention aims to meet the above requirements,
Either one or more of Si, Pb, Mg and P are added to Ag-Cu to make a brazing filler metal, or Ge,
A smooth brazing surface can be obtained by adding one or more of Mn and Ni to the brazing material. The present invention will be explained below. It should be noted that all the compounding ratios of elements described below are expressed in weight %. Ag-Cu system containing 50-95% Ag and 5-50% Cu, (i) 0.05% of one or more of Si, Pb, and Mg
~0.5% and 0.001 to 0.5% of P are added to make a brazing filler metal, or (ii) 0.005 to 1% of one or more of Ge, Mn, and Ni is added to this to make a brazing filler metal. Here, Si, Pb, and Mg are metal elements that have a strong bond with oxygen and have a degassing (deoxidizing) effect during the manufacture and use of the brazing filler metal, and the amount added is less than 0.05%. The effect cannot be improved, and if it exceeds 0.5%, problems will arise in the manufacturing process or usability of the brazing filler metal. Similarly, P is an element with a large degassing effect, and has a large effect on promoting the fluidity of wax wax, but if the amount added is less than 0.001%, these effects cannot be improved, but if it is added in an amount of 0.5% or more Similarly, problems arise in the manufacturing process or usability of the brazing filler metal. Furthermore, Ge, Mn, and Ni are elements that have the effect of refining the metal structure during solidification of the brazing filler metal, and if the amount added is less than 0.05%, the effect cannot be increased, and if the amount added is less than 1%, (i) The melting point increases significantly, making it inconvenient to use in brazing. (ii) liquidity decreases; (iii) Workability deteriorates, causing problems in the manufacturing process after casting. At least one of the following disadvantages occurs. Next, examples of the present invention will be described.
【表】
(1) ろう付引張強度については下記のような結果
を得た。[Table] (1) Regarding brazing tensile strength, the following results were obtained.
【表】【table】
【表】
但し、アムスラー材料試験機により行ない、
各試料の液相温度により40℃高い温度にて真空
中または水素雰囲気中でろう付を行なつた。断
面が４×４mmの突合わせ継手を測定した。
(2) 拡がり試験について下記のような結果を得
た。[Table] However, when conducted using an Amsler material testing machine,
Brazing was performed in vacuum or in a hydrogen atmosphere at a temperature 40°C higher depending on the liquidus temperature of each sample. A butt joint with a cross section of 4 x 4 mm was measured. (2) The following results were obtained regarding the spread test.
【表】
但し、拡がり試験は厚さ0.1mm、10mm角のろ
う材を用い、各ろう材の液相温度より40℃高い
温度にて真空中または水素雰囲気中で行ない、
２分間保持した。
(3) 表面粗さの測定結果は第１図〜第８図に示す
通りである。
但し、各ろう材の流動後の表面粗さは表面粗
さ測定機により測定を行なつた。各ろう材は
Ni板でその液相温度より40℃高い温度におい
て真空中または水素雰囲気中で流動させた。
以上のような本発明によるろう材は、従来のろ
う材と比較してまず、その基本的性能についてみ
ると、ろう付強度は添加元素の種類、添加量によ
り増減はあるが減少するものであつても実際使用
上問題となる程の減少ではなく、拡がり面積はほ
ぼ同等もしくは少し増加する。
本発明の主眼であるろう付後の表面粗さについ
ては、第１図〜第８図から明らかな如く、85Ag
−Cu、72Ag−Cu（BAg−８）、60Ag−Cuと比較
して、本発明のろう材は表面のざらつきが大きく
改善され、特にBAg−８はその効果が顕著であ
る。
以上の如く本発明はAg−Cu系ろう材の基本的
性能を特別損うことなくろう付後の表面状態を改
善し、多方面にわたつて有用なろう材となる。
さらに本発明は、Ag−Cu系合金の表面を脱ガ
ス、結晶粒微細化によつて改善することにより電
子工業の分野はもちろんのこと装飾品についても
より美麗な外観を与える効果を有する。[Table] However, the spreading test was conducted using a 10 mm square brazing filler metal with a thickness of 0.1 mm, at a temperature 40°C higher than the liquidus temperature of each brazing filler metal, in a vacuum or in a hydrogen atmosphere,
Hold for 2 minutes. (3) The measurement results of surface roughness are as shown in Figs. 1 to 8. However, the surface roughness of each brazing filler metal after flowing was measured using a surface roughness measuring machine. Each filler metal
A Ni plate was flowed in vacuum or in a hydrogen atmosphere at a temperature 40°C higher than its liquidus temperature. When comparing the brazing filler metal according to the present invention as described above with conventional brazing filler metals, first of all, when looking at its basic performance, the brazing strength decreases, although it increases or decreases depending on the type and amount of added elements. However, the reduction is not so great as to cause a problem in actual use, and the spread area is approximately the same or slightly increased. Regarding the surface roughness after brazing, which is the main focus of the present invention, as is clear from Figures 1 to 8, 85Ag
-Cu, 72Ag-Cu (BAg-8), and 60Ag-Cu, the surface roughness of the brazing filler metal of the present invention is greatly improved, and this effect is particularly remarkable for BAg-8. As described above, the present invention improves the surface condition after brazing without impairing the basic performance of the Ag-Cu brazing filler metal, making it a brazing filler metal useful in many fields. Furthermore, the present invention has the effect of imparting a more beautiful appearance not only to the electronic industry but also to decorative items by improving the surface of the Ag--Cu alloy by degassing and grain refinement.
第１図は従来品Ｆの表面粗さ測定結果を示すグ
ラフ、第２図は本発明Ａの表面粗さ測定結果を示
すグラフ、第３図は従来品Ｇの表面粗さ測定結果
を示すグラフ、第４図は本発明Ｂの表面粗さ測定
結果を示すグラフ、第５図は本発明Ｃの表面粗さ
測定結果を示すグラフ、第６図は本発明Ｄの表面
粗さ測定結果を示すグラフ、第７図は従来品Ｈの
表面粗さ測定結果を示すグラフ、第８図は本発明
Ｅの表面粗さ測定結果を示すグラフである。
Fig. 1 is a graph showing the surface roughness measurement results of conventional product F, Fig. 2 is a graph showing the surface roughness measurement results of present invention A, and Fig. 3 is a graph showing the surface roughness measurement results of conventional product G. , FIG. 4 is a graph showing the surface roughness measurement results of invention B, FIG. 5 is a graph showing the surface roughness measurement results of invention C, and FIG. 6 is a graph showing the surface roughness measurement results of invention D. 7 is a graph showing the surface roughness measurement results of conventional product H, and FIG. 8 is a graph showing the surface roughness measurement results of present invention E.
Claims (1)
なるAg量の多いAg−Cu系の銀ろう材において、
Si、Pb、Mgの一種または二種以上を0.05〜0.5重
量％と、Ｐを0.001〜0.5重量％加えたことを特徴
とする銀ろう材。 ２ Agが50〜95重量％、Cuが５〜50重量％から
なるAg量の多いAg−Cu系の銀ろう材において、
Si、Pb、Mgの一種または二種以上を0.05〜0.5重
量％と、Ｐを0.001〜0.5重量％、さらにGe、
Mn、Niの一種または二種以上を0.005〜１重量％
加えたことを特徴とする銀ろう材。[Claims] 1. In an Ag-Cu based silver brazing material with a large amount of Ag, consisting of 50 to 95% by weight of Ag and 5 to 50% by weight of Cu,
A silver brazing material characterized by adding 0.05 to 0.5% by weight of one or more of Si, Pb, and Mg and 0.001 to 0.5% by weight of P. 2. In an Ag-Cu based silver brazing material with a large amount of Ag, consisting of 50 to 95% by weight of Ag and 5 to 50% by weight of Cu,
0.05 to 0.5% by weight of one or more of Si, Pb, and Mg, 0.001 to 0.5% by weight of P, and further Ge,
0.005 to 1% by weight of one or more of Mn and Ni
A silver brazing filler metal that is characterized by the addition of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7200681A JPS57187196A (en) | 1981-05-13 | 1981-05-13 | Silver solder material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7200681A JPS57187196A (en) | 1981-05-13 | 1981-05-13 | Silver solder material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57187196A JPS57187196A (en) | 1982-11-17 |
| JPS6247119B2 true JPS6247119B2 (en) | 1987-10-06 |
Family
ID=13476891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7200681A Granted JPS57187196A (en) | 1981-05-13 | 1981-05-13 | Silver solder material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57187196A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9731384B2 (en) * | 2014-11-18 | 2017-08-15 | Baker Hughes Incorporated | Methods and compositions for brazing |
-
1981
- 1981-05-13 JP JP7200681A patent/JPS57187196A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57187196A (en) | 1982-11-17 |
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