JPH0223267B2 - - Google Patents
Info
- Publication number
- JPH0223267B2 JPH0223267B2 JP750486A JP750486A JPH0223267B2 JP H0223267 B2 JPH0223267 B2 JP H0223267B2 JP 750486 A JP750486 A JP 750486A JP 750486 A JP750486 A JP 750486A JP H0223267 B2 JPH0223267 B2 JP H0223267B2
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- honeycomb
- honeycomb core
- filler metal
- clad
- 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 52
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims 1
- 239000000945 filler Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Description
［産業上の利用分野］
本発明は、ハニカムコアにろう材を介して上下
面板をろう付するろう付ハニカムパネルの製造方
法に関するものである。
［従来の技術］
ハニカムパネルは、吸音性、断熱性、エネルギ
ー吸収性など優れた特徴を持つ素材であることか
ら、近年、輸送、建築などの多様な分野に用いら
れている。
この種のハニカムパネルの製造法として、たと
えば、第４図に示すように、下面板１上に予めろ
う材３をクラツドし、このろう材３上にハニカム
コア５を載置し、さらに、上面板７に予めクラツ
ドしたろう材９を上記ハニカムコア５上に載置
し、これらを加熱してろう材３，９を溶融するこ
とにより、ハニカムパネルを製造している。
［発明が解決しようとする問題点］
ところで、上記製造方法では、第５図Ａに示す
ように、上面板７にクラツドしたろう材９がハニ
カムコア５を伝つて、下面板１へ流れるため、次
のような問題点が生じる。
(1) ハニカムコア５の上端部５ａにおけるろう付
部９ａのフイレツトが下端部５ｂのろう付部３
ａのフイレツトより小さくなり、上下フイレツ
トの大きさに著しく差が生じ、このようなフイ
レツトの不均一性のため、ハニカムパネル全体
の強度が低減する。
(2) ハニカムコア５の下端部５ｂに流れ込んだ過
剰なろうにより下端部５ｂが、第５図Ｂに示す
ように、浸食されて、穴１１を生じたりして、
接合不良を招くことがある。このため、ハニカ
ムパネルの強度が低下したり、ろう付の際に、
ハニカムパネルに加圧作業を行なつた場合にハ
ニカムコア５が座屈して、ハニカムパネルの変
形を招くことがある。
［問題点を解決するための手段］
上記問題点を解決するためになされた本発明
は、
下面板上にろう材をクラツドし、このろう材上
にハニカムコアを載置し、さらに、上面板にクラ
ツドしたろう材を上記ハニカムコア上に載置し、
上記両ろう材を加熱溶融することにより、上下面
板をろう材を介してハニカムコアにろう付するハ
ニカムパネルの製造法において、
上記下面板にクラツドしたろう材を上面板にク
ラツドしたろう材より薄くすることを特徴とする
ものである。
ここで、上下面板とろう付とのグラツド量（厚
さの割合）は、上下面板の厚さ、ろうの流動性、
ハニカムコアのコアサイズ等により種々異なる
が、上面板のろう材の厚さに対し、下面板のろう
材の厚さは、望ましくは95％〜７％特に望ましく
は83％〜20％である。
［作用］
本発明において、下面板にクラツドしたろう材
を、上面板にクラツドしたろう材より薄くしてい
る。このため、ろう付の際に上面板のろう材がハ
ニカムコアを伝つて流れ落ちても、ろう材の凝固
時には、ハニカムコアの上下端でのろう材の量が
ほぼ均等になる。したがつてハニカムコアと面板
とのろう付部のフイレツトの大きさが上下ろう付
部間においてほとんどなくなつてハニカムパネル
の強度の低下を招いたり、あるいは過剰なろう材
がハニカムコアの下端部を浸食したりして、下面
板とハニカムコアの接合強度を低下させない。
［実施例］
以下、本発明の一実施例を図面にしたがつて説
明する。
第１図において、２１は厚さ1.2mmのアルミニ
ウム合金（BA11PC、……JIS規格）からなる下
面板で、この下面板２１上に、Al92重量％−Si8
重量％からなるろう材２３がクラツドされてい
る。ろう材２３の厚さl1は、下面板２１の５％程
度の60μｍになつている。２５は上記下面板２１
と同一形状、同一材質からなる上面板であり、こ
の上面板２５にろう材２７がクラツドされてい
る。ろう材２７の厚さl2は、上面板２５の10％程
度で120μｍになつており、上記下面板２１のろ
う材２３の２倍の厚さに形成されている。
２９はハニカムコアで、アルミニウム
（BA21PC）からなり、厚さ0.25mm、セルサイズ
１／２インチ、高さ(H)27mmに形成されている。
上記のようなハニカムパネルの部材を用いて、
150mm×300mmの小型ハニカムパネルと、150mm×
900mmの大型ハニカムパネルの２つを、ろう付に
より製造した。ろう付の条件として、Ｎガス雰囲
気中にて、小型ハニカムパネルでは、０〜600℃
までの加熱速度を20℃／分に設定するとともに
600℃にて10分間保持し、一方大型ハニカムパネ
ルでは、０〜600℃までの加熱温度を10℃／分に
設定するとともに、600℃にて40分間保持した。
この結果を第１表に示す。なお、表中で比較例
は、従来技術に相当する上下面板のろう材の厚さ
を等しくしたものである。
[Industrial Field of Application] The present invention relates to a method for manufacturing a brazed honeycomb panel in which upper and lower face plates are brazed to a honeycomb core via a brazing material. [Prior Art] Honeycomb panels are a material with excellent characteristics such as sound absorption, heat insulation, and energy absorption, and have recently been used in a variety of fields such as transportation and architecture. As a manufacturing method for this type of honeycomb panel, for example, as shown in FIG. A honeycomb panel is manufactured by placing a brazing filler metal 9, which has been clad in advance on the face plate 7, on the honeycomb core 5 and heating them to melt the brazing fillers 3 and 9. [Problems to be Solved by the Invention] In the above manufacturing method, as shown in FIG. 5A, the brazing filler metal 9 clad on the upper plate 7 flows through the honeycomb core 5 to the lower plate 1. The following problems arise. (1) The fillet of the brazing part 9a at the upper end 5a of the honeycomb core 5 is the brazing part 3 at the lower end 5b.
The fillet is smaller than that of a, and there is a significant difference in the size of the upper and lower fillets, and this non-uniformity of the fillets reduces the strength of the entire honeycomb panel. (2) As shown in FIG. 5B, the lower end 5b is eroded due to excessive wax flowing into the lower end 5b of the honeycomb core 5, and holes 11 are formed.
This may lead to poor bonding. For this reason, the strength of the honeycomb panel may decrease, and during brazing,
When applying pressure to a honeycomb panel, the honeycomb core 5 may buckle, leading to deformation of the honeycomb panel. [Means for Solving the Problems] The present invention, which was made to solve the above problems, consists of cladding a brazing material on the bottom plate, placing a honeycomb core on the brazing material, and then cladding the top plate. Place the clad brazing filler metal on the honeycomb core,
In the honeycomb panel manufacturing method in which the top and bottom plates are brazed to the honeycomb core via the brazing metal by heating and melting both of the brazing fillers mentioned above, the brazing filler metal clad in the bottom plate is thinner than the brazing filler metal clad in the top plate. It is characterized by: Here, the amount of grading (thickness ratio) between the upper and lower plates and the brazing is determined by the thickness of the upper and lower plates, the fluidity of the solder,
Although it varies depending on the core size of the honeycomb core, etc., the thickness of the brazing material on the bottom plate is preferably 95% to 7%, particularly preferably 83% to 20%, relative to the thickness of the brazing material on the top plate. [Function] In the present invention, the brazing filler metal clad in the bottom plate is made thinner than the brazing filler metal clad in the top plate. Therefore, even if the brazing filler metal on the top plate flows down the honeycomb core during brazing, the amount of the brazing filler metal at the upper and lower ends of the honeycomb core becomes approximately equal when the brazing filler metal solidifies. Therefore, the size of the fillet at the brazed portion between the honeycomb core and the face plate becomes almost nonexistent between the upper and lower brazed portions, resulting in a decrease in the strength of the honeycomb panel, or excessive brazing material may damage the lower end of the honeycomb core. It does not reduce the bonding strength between the bottom plate and the honeycomb core due to erosion. [Example] An example of the present invention will be described below with reference to the drawings. In Fig. 1, 21 is a bottom plate made of aluminum alloy (BA11PC, ... JIS standard) with a thickness of 1.2 mm.
A brazing filler metal 23 consisting of % by weight is clad. The thickness l 1 of the brazing filler metal 23 is approximately 5% of the thickness of the lower plate 21, or 60 μm. 25 is the lower plate 21
The top plate 25 has the same shape and is made of the same material as the top plate 25, and a brazing filler metal 27 is clad in the top plate 25. The thickness l 2 of the brazing filler metal 27 is approximately 10% of the thickness of the upper plate 25 and is 120 μm, which is twice the thickness of the brazing filler metal 23 of the lower plate 21 . 29 is a honeycomb core made of aluminum (BA21PC) with a thickness of 0.25 mm, a cell size of 1/2 inch, and a height (H) of 27 mm. Using honeycomb panel members as above,
150mm x 300mm small honeycomb panel and 150mm x
Two large 900 mm honeycomb panels were manufactured by brazing. The brazing conditions are 0 to 600℃ for small honeycomb panels in an N gas atmosphere.
At the same time as setting the heating rate to 20℃/min.
The temperature was maintained at 600°C for 10 minutes, while for the large honeycomb panel, the heating temperature from 0 to 600°C was set at 10°C/min, and the temperature was maintained at 600°C for 40 minutes. The results are shown in Table 1. In addition, in the comparative example in the table, the thickness of the brazing filler metal of the upper and lower plates was made equal, which corresponds to the conventional technique.
【表】
上記結果より、明らかなように、本実施によれ
ば、第２図に示すハニカムコア２９における上端
部２９ａのろう付部２７ａのフイレツトの脚長
と、下端部２９ｂのろう付部２３ａのフイレツト
の脚長は、長時間の加熱処理を要するハニカムパ
ネルであつても、１：1.5となり従来技術の１：
４と比較して著しく改善された。これにより、上
下面板２１，２５とハニカムコア２９とのろう付
強度の不均一性が著しく改善され、ろう付ハニカ
ムパネルの強度を向上させることができるので、
堅固なハニカムパネルを得ることができた。
また、溶融したろう材がハニカムコア２９の下
端部２９ｂの周囲に過剰にならないので、該下端
部２９ｂの浸食の防止を図れる。このような浸食
の少ないことから、(1)ハニカムコア２９と下面板
２１との接合強度の向上を実現でき、(2)ろう付の
際に上下面板２１，２５に加圧してもハニカムコ
ア２９の座屈などの変形を生じ難く、(3)ハニカム
コア２９の薄肉化を可能にし、(4)長時間の加熱に
耐え得るのでハニカムパネルの大型化を可能にす
る等の効果がある。
なお、第３図に示すように、ハニカムコア２９
にブレージングシート２９Ａを用いた場合には、
ブレージングシート２９Ａ間のろう材３２が面板
２１，２５のろう付の際に溶融して流れ落ちて
も、上面板２５のろう材２７により補充され、か
つ、下面板２１のろう付部には過剰なろう材が停
留しないので、上記実施例の効果が一層発揮され
る。
［発明の効果］
以上説明したように、本発明によれば、ハニカ
ムパネルの上下端部と上下面板との両ろう付部の
フイレツトの大きさがほぼ等しくなるので、ハニ
カムパネルの強度が高くなる。また、下面板に過
剰な溶融ろう材が停留しないので、ハニカムパネ
ルの浸食を招かず、堅固なハニカムパネルを得る
ことができる。[Table] As is clear from the above results, according to the present implementation, the leg length of the fillet of the brazed portion 27a of the upper end portion 29a of the honeycomb core 29 shown in FIG. The leg length of the fillet is 1:1.5, which is 1:1 of the conventional technology, even for honeycomb panels that require long-term heat treatment.
Significant improvement compared to 4. As a result, the non-uniformity of the brazing strength between the upper and lower face plates 21, 25 and the honeycomb core 29 is significantly improved, and the strength of the brazed honeycomb panel can be improved.
We were able to obtain a solid honeycomb panel. Further, since the molten brazing material does not become excessive around the lower end portion 29b of the honeycomb core 29, erosion of the lower end portion 29b can be prevented. Because of this little erosion, (1) it is possible to improve the bonding strength between the honeycomb core 29 and the lower plate 21, and (2) even if pressure is applied to the upper and lower plates 21 and 25 during brazing, the honeycomb core 29 It is difficult to cause deformation such as buckling, (3) it allows the honeycomb core 29 to be made thinner, and (4) it can withstand long-term heating, so it has the following effects, such as making it possible to increase the size of the honeycomb panel. In addition, as shown in FIG. 3, the honeycomb core 29
When using brazing sheet 29A,
Even if the brazing filler metal 32 between the brazing sheets 29A melts and flows down when the face plates 21 and 25 are brazed, it is replenished by the brazing filler metal 27 on the top plate 25, and there is no excess in the brazed portion of the bottom plate 21. Since the brazing filler metal does not stagnate, the effects of the above embodiments are further exhibited. [Effects of the Invention] As explained above, according to the present invention, the sizes of the fillets at both the brazed portions between the upper and lower ends of the honeycomb panel and the upper and lower face plates are approximately equal, so the strength of the honeycomb panel is increased. . Further, since excessive molten brazing material does not remain on the bottom plate, erosion of the honeycomb panel is not caused, and a strong honeycomb panel can be obtained.
第１図は本発明の一実施例によるハニカムパネ
ルのろう付工程前の状態を示す説明図、第２図は
同実施例による作用効果を説明する断面図、第３
図は他の実施例を示す斜視図、第４図は従来のハ
ニカムパネルのろう付工程前の状態を示す斜視
図、第５図Ａ，Ｂは従来の技術の問題点を説明す
るための断面図である。
２１……下面板、２５……上面板、２３，２７
……ろう材、２９……ハニカムコア、２３ａ，２
７ａ……ろう付部。
FIG. 1 is an explanatory view showing the state before the brazing process of a honeycomb panel according to an embodiment of the present invention, FIG. 2 is a sectional view illustrating the effects of the same embodiment, and FIG.
The figure is a perspective view showing another embodiment, FIG. 4 is a perspective view showing the state of a conventional honeycomb panel before the brazing process, and FIGS. 5A and B are cross-sections for explaining problems in the conventional technology. It is a diagram. 21... Bottom plate, 25... Top plate, 23, 27
... Brazing metal, 29 ... Honeycomb core, 23a, 2
7a...Brazing part.
Claims (1)
上にハニカムコアを載置し、さらに上面板にクラ
ツドしたろう材を上記ハニカムコア上に載置し、
上記両ろう材を加熱、溶融することにより、上下
面板をろう材を介してハニカムコアにろう付する
ろう付ハニカムパネルの製造方法において、 上記下面板にクラツドしたろう材を、上面板に
クラツドしたろう材より薄くすることを特徴とす
るろう付ハニカムパネルの製造方法。[Scope of Claims] 1. A brazing metal is clad on a lower plate, a honeycomb core is placed on the brazing metal, and a brazing metal clad on an upper plate is placed on the honeycomb core,
In the manufacturing method of a brazed honeycomb panel, in which the upper and lower face plates are brazed to the honeycomb core through the brazing metal by heating and melting both of the above brazing metals, the brazing metal clad in the lower plate is clad in the upper plate. A method for producing a brazed honeycomb panel characterized by making it thinner than a brazing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP750486A JPS62166073A (en) | 1986-01-16 | 1986-01-16 | Manufacture of brazing honeycomb panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP750486A JPS62166073A (en) | 1986-01-16 | 1986-01-16 | Manufacture of brazing honeycomb panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62166073A JPS62166073A (en) | 1987-07-22 |
| JPH0223267B2 true JPH0223267B2 (en) | 1990-05-23 |
Family
ID=11667611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP750486A Granted JPS62166073A (en) | 1986-01-16 | 1986-01-16 | Manufacture of brazing honeycomb panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62166073A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5066708B2 (en) * | 2007-01-10 | 2012-11-07 | 株式会社ケーヒン・サーマル・テクノロジー | Plate for flat tube manufacturing |
-
1986
- 1986-01-16 JP JP750486A patent/JPS62166073A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62166073A (en) | 1987-07-22 |
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