JPH0371974A - Method for brazing metallic materials - Google Patents
Method for brazing metallic materialsInfo
- Publication number
- JPH0371974A JPH0371974A JP20922689A JP20922689A JPH0371974A JP H0371974 A JPH0371974 A JP H0371974A JP 20922689 A JP20922689 A JP 20922689A JP 20922689 A JP20922689 A JP 20922689A JP H0371974 A JPH0371974 A JP H0371974A
- Authority
- JP
- Japan
- Prior art keywords
- main pipe
- hole
- throttle body
- brazing
- connecting member
- 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
- 239000007769 metal material Substances 0.000 title claims abstract description 32
- 238000005219 brazing Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 10
- 238000007751 thermal spraying Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 239000000945 filler Substances 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 abstract description 2
- 229910052801 chlorine Inorganic materials 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 2
- 230000004907 flux Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は金属材のろう付方法に関し、さらに詳しくい
えば、自動車用吸気マニホルドや、熱交換器等を製造す
るさいに、第１金属材の端部を第２金属材にあけられた
孔に差込んだ状態で両金属材をろう付する方法に関する
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method of brazing metal materials, and more specifically, when manufacturing automobile intake manifolds, heat exchangers, etc. This method relates to a method of brazing both metal materials with the second metal material being inserted into a hole drilled in the second metal material.
この明細書において、「アルミニウム」という語には、
純アルミニウムの他にアルミニウム合金を含むものとす
る。また、この明細書において、「略水平」という語に
は、完全な水平状態はもちろんのこと、水平から４５度
未満傾斜した状態までも含むものとする。In this specification, the term "aluminum" refers to
In addition to pure aluminum, aluminum alloys are included. Furthermore, in this specification, the term "substantially horizontal" includes not only a completely horizontal state but also a state tilted less than 45 degrees from the horizontal.
従来の技術
たとえば、第３図に示すように、自動車用吸気マニホル
ド（１）として、一端が開口するとともに他端が閉鎖さ
れ、かつ周壁に複数の孔（３）が形成されるとともに番
孔（３）の周囲に分岐管接続用筒状外方突出部（４）が
一体的に設けられたアルミニウム展伸材からなる主管（
２）と、各一端が分岐管接続用筒状外方突出部（４）に
嵌め入れられた状態でろう付されたアルミニウム展伸材
からなる複数の分岐管（５〉とを備えているものが考え
られている。2. Description of the Related Art For example, as shown in FIG. 3, an automobile intake manifold (1) has one end open and the other end closed, and a plurality of holes (3) formed in the peripheral wall. A main pipe (3) made of an aluminum wrought material with a cylindrical outward protrusion (4) for connecting a branch pipe integrally provided around the main pipe (3).
2), and a plurality of branch pipes (5) made of aluminum wrought material brazed with each end fitted into a cylindrical outward protrusion (4) for connecting branch pipes. is being considered.
上記吸気マニホルド（１）において、主管（２）の開口
端には、アルミニウム鋳造品からなるスロットルボディ
取付体（６）がろう付されている。In the intake manifold (1), a throttle body mounting body (6) made of an aluminum casting is brazed to the open end of the main pipe (2).
スロットルボディ取付体（８）には図示されないスロッ
トルボディが取付けられ、これにエアクリーチからの送
気管が接続される。各分岐管（５）の他端は、１つのア
ルミニウム鋳物製のシリンダヘッドへの接続部材（７）
にまとめてろう付されている。接続部材（７）を介して
各分岐管（５）カ図示しないエンジンのシリンダヘッド
に接続される。主管（２）および分岐管（５）としては
、たとえばＪ ｌ５Ａ６０６３、ＪＩＳＡ６０６１のよ
うなＪ Ｉ ５Ａ６０００系アルミニウム材からなるも
のを使用するのが好ましい。A throttle body (not shown) is attached to the throttle body attachment (8), and an air supply pipe from an air creech is connected to this. The other end of each branch pipe (5) connects to one aluminum casting cylinder head (7).
are brazed together. Each branch pipe (5) is connected to a cylinder head of an engine (not shown) via a connecting member (7). The main pipe (2) and the branch pipe (5) are preferably made of JI5A6000 series aluminum material, such as JI5A6063 and JISA6061.
スロットルボディ取付体（８）は、円筒状で、その一端
に外方突出フランジ（８）が一体的に設けられている。The throttle body mounting body (8) has a cylindrical shape, and an outwardly projecting flange (8) is integrally provided at one end thereof.
主管（２）の開口した一端部は、スロットルボディ取付
体（６）の孔（９）内に差込まれてスロットルボディ取
付体（６）にろう付されている。接続部材（７）は、横
長方形状であって４つの孔（図示略）と、孔の周囲に一
体的に設けられた分岐管接続用筒状外方突出部（１０）
とを備えている。突出部（１０）の上方には燃料噴射装
置の差込み部り１１）が一体的に設けられている。One open end of the main pipe (2) is inserted into the hole (9) of the throttle body attachment (6) and brazed to the throttle body attachment (6). The connection member (7) has a horizontal rectangular shape and has four holes (not shown) and a cylindrical outward protrusion (10) for connecting a branch pipe that is integrally provided around the hole.
It is equipped with An insertion portion 11) for a fuel injection device is integrally provided above the protrusion (10).
そして、分岐管（５）は、突出部（１０）内に挿入され
て、ろう付されている。The branch pipe (5) is then inserted into the protrusion (10) and brazed.
従来、上記吸気マニホルド（１）は、筒状外方突出部（
４）（１０）が垂直上方を向くように、主管（２）およ
び接続部材り７）を略水平に配置し、主管（２）とスロ
ットルボディ取付体（６）、ならびに分岐管（５）と主
管（２）および接続部材（７）とを組み合わせた後、主
管（１）のスロットルボディ取付体（８）側端部、分岐
管（２）の主管〈１）側および接続部材（７）側端部に
、ワイヤから形成されたリング状ろう材（１２）を嵌め
被せ（第４図参照）、これらを同時にろう付することに
より製造されている。Conventionally, the intake manifold (1) has a cylindrical outward protrusion (
4) Arrange the main pipe (2) and the connecting member 7) approximately horizontally so that (10) faces vertically upward, and connect the main pipe (2), throttle body mounting body (6), and branch pipe (5). After combining the main pipe (2) and the connecting member (7), the end of the main pipe (1) on the throttle body mounting body (8) side, the main pipe (1) side and the connecting member (7) side of the branch pipe (2) It is manufactured by fitting a ring-shaped brazing material (12) made of wire onto the end portion (see Fig. 4) and brazing these together.
発明が解決しようとする課題
しかしながら、複数の部材がろう付されることにより形
成されている自動車用吸気マニホルド（１）では、全て
の部材を組み合わせた後、主管（１）のスロットルボデ
ィ取付体（８）側端部、分岐管（２）の主管（１〉側お
よび接続部材（７）側端部に、それぞれワイヤから形成
されたリング状ろう材（１２）を嵌め被せる必要があり
、その作業は手作業で行わなければならず、面倒である
という問題がある。さらに、従来の方法でろう付を行な
うと、主管（２）に嵌め被せられたろう材（１２）が溶
融したさいに、接合予定部位全体のうち最上部を含んで
円周方向に所定長さにわたる部分Ｑろう材が重力によっ
て流れ落ち、第５図に示すように、主管（２）の挿入部
の外周面と、スロットルボディ取付体（６）の孔（９〉
の内周面との間にろう材が侵入しにくく、しかも主管（
２）の外周面とスロットルボディ取付体（６）の主管（
２）挿入側端面の接合予定部位における上部に形成され
るフィレット（１３）が小さくなって十分なろう付強度
が得られないという問題がある。Problems to be Solved by the Invention However, in the automobile intake manifold (1) formed by brazing a plurality of members, after all the members are assembled, the throttle body mounting body ( 8) It is necessary to fit and cover the side ends, the main pipe (1> side of the branch pipe (2)) and the end of the connecting member (7) with a ring-shaped brazing material (12) formed from wire, and this work This has to be done manually, which is troublesome.Furthermore, when brazing is performed using the conventional method, when the brazing filler metal (12) fitted over the main pipe (2) melts, the joining process is interrupted. Part Q of the entire planned area, which extends for a predetermined length in the circumferential direction including the top, flows down by gravity, and as shown in Fig. 5, it touches the outer circumferential surface of the insertion part of the main pipe (2) and the throttle body attachment. Hole (9) of body (6)
It is difficult for filler metal to enter between the inner peripheral surface of the main pipe (
2) and the main pipe (6) of the throttle body mounting body (6).
2) There is a problem that the fillet (13) formed in the upper part of the insertion-side end face at the planned joining site becomes small and sufficient brazing strength cannot be obtained.
この発明の目的は、上記問題を解決した金属材のろう付
方法を提供することにある。An object of the present invention is to provide a method for brazing metal materials that solves the above problems.
課題を解決するための手段
この発明による金属材のろう付方法は、第１金属材の端
部を第２金属材にあけられた孔に差込んだ状態で両金属
材をろう付するにあたり、第１金属材の端部外周面に、
予め溶射によりろう桐層を形成しておき、その後第１金
属材のり；１１部を第２金属材の孔に差込んで両金属材
をろう付することを特徴とするものである。Means for Solving the Problems The method for brazing metal materials according to the present invention involves brazing both metal materials with the end of a first metal material inserted into a hole drilled in a second metal material. On the outer peripheral surface of the end of the first metal material,
The method is characterized in that a wax paulownia layer is formed in advance by thermal spraying, and then 11 parts of the first metal material glue is inserted into the hole of the second metal material to braze both metal materials.
実 施 例
以下、この発明の実施例を、第１図および第２図を参照
して説明する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2.
主管（２）におけるスロットルボディ取付体（Ｂ）の貫
通孔（９）への差込み端部、ならびに分岐管（５〉両端
における主管（２）の筒状外方突出部（４）および接続
部材（７）の筒状外方突出部（１０）への差込み端部の
外周面に、それぞれ以下に述べる方法でろう材からなる
溶射層（２０〉を形成しておいた。すなわち、まず主管
（２）および分岐管（５）における溶射層（２０）を形
成すべき部分をのぞいてマスキングしておき、溶射層形
成予定部位にサンドブラスト法により前処理を施してお
いた。ついで、Ａｌ１−１０ｖｔ％Ｓｉ合金の粉末を使
用し、大気中において、アトマイズ圧５０ｐｓｌ、溶射
ガンの送り速度２．０ｍ／分、主管（２）および分岐管
（５）の回転数６００ ｒｐｌｌ。The insertion end of the main pipe (2) into the through hole (9) of the throttle body mounting body (B), and the cylindrical outward protrusion (4) of the main pipe (2) at both ends of the branch pipe (5) and the connecting member ( A sprayed layer (20) made of a brazing metal was formed on the outer circumferential surface of the end of the main pipe (20) inserted into the cylindrical outward protrusion (10) by the method described below. ) and the branch pipe (5), except for the parts where the sprayed layer (20) was to be formed, were masked, and the parts where the sprayed layer was to be formed were pretreated by sandblasting.Then, Al1-10vt%Si Alloy powder was used in the atmosphere at an atomizing pressure of 50 psl, a thermal spray gun feed rate of 2.0 m/min, and a main pipe (2) and branch pipe (5) rotation speed of 600 rpll.
溶射電圧３３Ｖ、溶射電流１５０Ａ、溶射時間１５秒×
２という条件で、アーク溶射法により、ろう材からなる
溶射層（２０）を形成した。溶射層（２０）の肉厚は５
００μｍであった。Spraying voltage 33V, spraying current 150A, spraying time 15 seconds
A sprayed layer (20) made of a brazing filler metal was formed by an arc spraying method under the conditions of 2. The thickness of the sprayed layer (20) is 5
It was 00 μm.
その後、第１図に示すように、主管（２〉の開口端部を
スロットルボディ取付体（８）の孔（９）内に差し込む
とともに、分岐管（５）の両端部を主管（２）および接
続部材（７）の筒状外方突出部（４）（１０）内にそれ
ぞれ差込み、筒状外方突出部（４）（ｔｏ）が垂直上方
を向くような姿勢で、主管（２）、分岐管（５）、スロ
ットルボディ取付体（６）、および接続部材（７）の組
合わせ体を炉の中に入れ、炉中において、塩素系のフラ
ックスを使用し、窒素ガス雰囲気中で６００℃、５分間
加熱することによって、主管（２）の筒状外方突出部（
４〉と分岐管（５〉、主管（２）とスロットルボディ取
付体（６〉、および分岐管（５）と接続部材（７）の筒
状外方突出部（ｌＯ）とを−括してろう付した。Then, as shown in Figure 1, insert the open end of the main pipe (2) into the hole (9) of the throttle body mounting body (8), and connect both ends of the branch pipe (5) to the main pipe (2) and Insert the main pipe (2) into the cylindrical outward protrusions (4) and (10) of the connecting member (7), respectively, with the cylindrical outward protrusions (4) (to) facing vertically upward. The combination of the branch pipe (5), throttle body mounting body (6), and connection member (7) is placed in a furnace, and heated to 600°C in a nitrogen gas atmosphere using chlorine-based flux. , by heating for 5 minutes, the cylindrical outward protrusion of the main pipe (2) (
4> and the branch pipe (5>), the main pipe (2) and the throttle body mounting body (6>), and the branch pipe (5) and the cylindrical outward protrusion (lO) of the connecting member (7). Brazed.
主管（２）とスロットルボディ取付体（６）とのろう何
部を調べたところ、主管（２）の差込み部の外周面と、
孔（９）の内周面との間には、全周にわたってほぼ均一
なフィレット（２１）が形成されており、その全周に渡
ってろう切れがなく、良好にろう付されていた。When we examined the connecting parts between the main pipe (2) and the throttle body mounting body (6), we found that the outer peripheral surface of the insertion part of the main pipe (2),
A substantially uniform fillet (21) was formed over the entire circumference between the hole (9) and the inner circumferential surface, and there was no brazing breakage over the entire circumference, indicating that the fillet (21) was well-brazed.
上記実施例においては、ろう材からなる溶射層の形成を
、ろう材の粉末を用いて行っているが、ろう材のワイヤ
を用いて行ってもよい。In the above embodiments, the sprayed layer made of brazing material is formed using powdered brazing material, but it may also be formed using a wire of brazing material.
発明の効果
この発明の方法によれば、上述のように、第１金属材Ｑ
略水平部分における孔への差込み部分の外周面と、第２
金属材における孔の周面との間にとどまり、その結果溶
融ろうの流下が防止される。したがって、２つの金属材
の接合部における上部にフィレットの小さい部分が発生
するのが防止され、その結果両金属材が強固にろう付さ
れる。また、全ての作業を自動化することが可能となり
、作業が容易になる。Effects of the Invention According to the method of this invention, as described above, the first metal material Q
The outer peripheral surface of the part inserted into the hole in the approximately horizontal part, and the second
It remains between the metal material and the circumferential surface of the hole, thereby preventing the molten solder from flowing down. Therefore, the formation of a small fillet in the upper part of the joint between the two metal materials is prevented, and as a result, both metal materials are firmly brazed. Additionally, all work can be automated, making work easier.
第１図および第２図はこの発明の実施例を示し、第１図
は主管と分岐管にろう材からなる溶射層を形成した状態
を示す斜視図、第２図は主管とスロットルボディ取付体
、分岐管と主管および接続部材をろう付した後における
主管とスロットルボディ取付体との組み合わせ部分の拡
大縦断面図、第３図は自動車用吸気マニホルドの斜視図
、第４図は従来例を示し、ろう付部の状態の主管とスロ
ットルボディ取付体との組み合わせ部分の拡大縦断面図
、第５図は同じくろう付換の主管とスロットルボディ取
付体との組み合わせ部分の拡大縦断面図である。
〈２）・・・主管、（４）・・・筒状外方突出部、（５
）・・・分岐管、（６）・・・スロットルボディ取付体
、（７）・・・接続部材、（９）・・・孔、（１０）・
・・筒状外方突出部、（２０）・・・溶射層。
以 上Fig. 1 and Fig. 2 show an embodiment of the present invention, Fig. 1 is a perspective view showing a state in which a sprayed layer of brazing material is formed on the main pipe and branch pipe, and Fig. 2 shows the main pipe and throttle body attachment body. , an enlarged vertical cross-sectional view of the combined part of the main pipe and throttle body mounting body after brazing the branch pipe, the main pipe, and the connecting member; FIG. 3 is a perspective view of an automobile intake manifold; and FIG. 4 shows a conventional example. FIG. 5 is an enlarged vertical cross-sectional view of a combined portion of the main pipe and throttle body mounting body in a brazed state, and FIG. <2)... Main pipe, (4)... Cylindrical outward protrusion, (5
)... Branch pipe, (6)... Throttle body mounting body, (7)... Connection member, (9)... Hole, (10)...
...Cylindrical outward protrusion, (20)...sprayed layer. that's all
Claims (1)
だ状態で両金属材をろう付するにあたり、第１金属材の
端部外周面に、予め溶射によりろう材層を形成しておき
、その後第１金属材の端部を第２金属材の孔に差込んで
両金属材をろう付することを特徴とする金属材のろう付
方法。When brazing both metal materials with the end of the first metal material inserted into the hole drilled in the second metal material, a layer of brazing material is preliminarily applied to the outer peripheral surface of the end of the first metal material by thermal spraying. 1. A method for brazing metal materials, which comprises forming the first metal material in advance, and then inserting an end of the first metal material into a hole in a second metal material to braze both metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20922689A JPH0371974A (en) | 1989-08-10 | 1989-08-10 | Method for brazing metallic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20922689A JPH0371974A (en) | 1989-08-10 | 1989-08-10 | Method for brazing metallic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0371974A true JPH0371974A (en) | 1991-03-27 |
Family
ID=16569440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20922689A Pending JPH0371974A (en) | 1989-08-10 | 1989-08-10 | Method for brazing metallic materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0371974A (en) |
-
1989
- 1989-08-10 JP JP20922689A patent/JPH0371974A/en active Pending
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