JPS6061171A - Brazing method of part where pipe is fitted to cylindrical part - Google Patents
Brazing method of part where pipe is fitted to cylindrical partInfo
- Publication number
- JPS6061171A JPS6061171A JP18011083A JP18011083A JPS6061171A JP S6061171 A JPS6061171 A JP S6061171A JP 18011083 A JP18011083 A JP 18011083A JP 18011083 A JP18011083 A JP 18011083A JP S6061171 A JPS6061171 A JP S6061171A
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- fixing member
- cylindrical part
- pipe
- fitted
- 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.)
- Granted
Links
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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/14—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
- B23K1/18—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams circumferential seams, e.g. of shells
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gas Burners (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は円筒体に対するパイプ嵌合部のろう付は方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for brazing a pipe fitting to a cylindrical body.
従来、例えば内燃1閏におけるビス1ヘンを冷却するた
めに、第1図に示すように、シリンダブロック31の油
通路32に隣接してシリンダブロック31にアイボルト
33をもってノズル6を支持づる固定部材2が固定支持
され、油ポンプによって通路32へ供給された潤滑油を
、シリンダ36の内部へ延びるノズル6からピストン3
7の内壁面およびコネクティングロッド39を連結する
ビス]−ンごン38の回りへ噴出して冷却するようにな
っている。Conventionally, in order to cool a screw 1 in an internal combustion engine, for example, as shown in FIG. is fixedly supported, and lubricating oil supplied to the passage 32 by an oil pump is passed from a nozzle 6 extending into the inside of the cylinder 36 to the piston 3.
The liquid is ejected around the inner wall surface of the screw tube 7 and the connecting rod 39 to cool it.
従来、このようなノズル6および固定部材2には銅また
は銅合金が用いられ、両者は互いにろう0けによって結
合されているが、材料としての銅合金よりも低価格のア
ルミニウム合金をもって固定部材2およびノズル6を加
工し、これらをろう付(プによって結合することが試み
られている。このろう付けに用いるろう材には、シリン
ダ36の燃焼室から伝達される熱に対して溶けないにう
な硬ろうを用いることが条件となる。しかし、アルミニ
ウムは銅に比べてその熱伝導が非常に良いことと、母材
とろう材の融点が接近しているために、手作業の場合で
も非常に困難であり、このろう付は加工を自動化するこ
とは非常に困難とされている。Conventionally, copper or a copper alloy has been used for the nozzle 6 and the fixing member 2, and the two are bonded to each other by soldering. Attempts have been made to process the nozzle 6 and the nozzle 6, and to join them together by brazing. The condition is to use hard solder.However, aluminum has a much better thermal conductivity than copper, and the melting points of the base metal and brazing metal are close to each other, so it is very difficult to use even when done by hand. It is said that it is very difficult to automate the process of brazing.
例えば、第2図に示すように、傾斜した支持台21にア
イポル1〜と同様の固定ボルト22をもって固定部材2
を固定支持し、この円筒部5にノズル6を嵌合するとと
もに、環状のろう材7をノズル6に外挿して円筒部5の
上端面に支持したうえ、吹笛8からの焔によってろう材
7を溶かすだ(プでは不十分であり、焔がろう材7に届
かないように熱容量の大きい円筒部5から徐々に加熱し
、ろう材7が次第に溶けて円筒部2とノズル6との嵌合
部へ溶は込むようにしなければならない。このようなろ
う付は作業は手数が掛るばかりでなく、子の仕上りにも
バラ付きが生じ、万一ろう付(プ部が剥離してノズル6
が脱落すると、シリングの内周面を傷付(Jたり、ピス
トンの冷却が悪くなりピストンリングが焼r」< ta
れがある。For example, as shown in FIG.
A nozzle 6 is fitted into the cylindrical part 5, and an annular brazing material 7 is fitted onto the nozzle 6 and supported on the upper end surface of the cylindrical part 5. 7 (pu is not enough, so heat gradually starting from the cylindrical part 5 with a large heat capacity so that the flame does not reach the brazing filler metal 7, and the brazing filler metal 7 gradually melts and the cylindrical part 2 and nozzle 6 fit together.) It is necessary to make sure that the melt penetrates into the joint. Not only does this type of brazing take a lot of work, but it also causes unevenness in the finish of the solder, and in the unlikely event that the soldering part peels off and the nozzle 6
If it falls off, it may damage the inner circumferential surface of the cylinder, or the cooling of the piston may deteriorate and the piston ring may burn out.
There is.
もちろん、取句部月2に対してノズル6を回合し、かつ
ろう材7を装着した状態で、これを雰囲気炉に挿入して
ろう材を溶か(ように寸ればろう付けは可能であるが、
これは設備費が嵩み、従来の銅合金を用いたノズルに比
べて却ってコスト増加を招く。Of course, after fitting the nozzle 6 to the Tokubugetsu 2 and attaching the brazing filler metal 7, insert this into an atmospheric furnace to melt the filler metal (brazing is possible if the brazing filler metal is sized like this). Yes, but
This increases the equipment cost, which actually causes an increase in cost compared to a conventional nozzle using a copper alloy.
本発明の目的は、このような円筒部に対するパイプ嵌合
部のろうfjけ作業を自動的に行い、かつ均質な接合が
得られる経済的な、円筒部に女」するパイプ嵌合部のろ
う付は方法を提供する(二とにある。An object of the present invention is to automatically perform the brazing work of the pipe fitting part to the cylindrical part, and to provide an economical method of soldering the pipe fitting part to the cylindrical part, which can provide a homogeneous joint. The attached section provides the method (in 2 and 2).
このため、本発明による円筒部に対りるパイプ嵌合部の
ろうHIyJ方法は、固定部材を直立に支持し、前2固
定部材の円筒部にパイプを向合し、前記円筒部の上端部
に前記パイプを取り囲む環状のろう材を装着し、焔が前
記円筒部の下端部に当り上端部へ)nつで流れるように
、前記円筒部の下端部に吹笛の火口を向けて配置し、前
記焔により前記円筒部の全周面が加熱された後に、前記
ろう材が溶けて前記嵌合部の隙間へ流れ込むようにした
ことを特徴とするものである。For this reason, in the method of brazing a pipe fitting part to a cylindrical part according to the present invention, the fixing member is supported upright, the pipe is faced to the cylindrical part of the front two fixing members, and the upper end of the cylindrical part is A ring-shaped brazing material surrounding the pipe is attached to the pipe, and the pipe is placed with the mouthpiece of the whistle facing the lower end of the cylindrical part so that the flame hits the lower end of the cylindrical part and flows toward the upper end. The present invention is characterized in that after the entire circumferential surface of the cylindrical portion is heated by the flame, the brazing filler metal melts and flows into the gap of the fitting portion.
本発明を実施例に基づいて説明する。第3図に示すよう
に、回転軸13によって駆動される回転台9の中心に凹
部10が設けられ、これに断熱材30を介して固定部材
2のポルl−穴3を有する基端部が嵌合支持され、円筒
部5が直立状態とされる。回転台9の周囲には好ましく
は1個または複数個の吹i!8が配置され、この吹笛8
の向きは固定部材2の円筒部5の基端部に向けてやや上
方へ傾けて配設される。The present invention will be explained based on examples. As shown in FIG. 3, a recess 10 is provided in the center of the rotary table 9 driven by a rotary shaft 13, and a proximal end portion of the fixing member 2 having the hole 3 is inserted into this through a heat insulating material 30. The cylindrical portion 5 is fitted and supported, and the cylindrical portion 5 is placed in an upright state. Preferably, one or more blowing i! 8 is placed, and this whistle 8
The direction of the fixing member 2 is inclined slightly upward toward the base end of the cylindrical portion 5 of the fixing member 2.
円筒部5にはノズル6が嵌合され、かつノズル6に外挿
した環状のろう材7が円筒部5の上端面に支持される。A nozzle 6 is fitted into the cylindrical portion 5 , and an annular brazing material 7 fitted onto the nozzle 6 is supported on the upper end surface of the cylindrical portion 5 .
そして、吹笛8から焔を円筒部5の下端部に向けて噴出
させると、焔は円筒部5の外壁に沿って上方へ流れる。When the flame is ejected from the whistle 8 toward the lower end of the cylindrical portion 5, the flame flows upward along the outer wall of the cylindrical portion 5.
そして、回転台9とともに固定部材2が回転されるから
円筒部5の壁部が全周に亙っで均一に加熱される。Since the fixed member 2 is rotated together with the rotating table 9, the wall portion of the cylindrical portion 5 is heated uniformly over the entire circumference.
5−
円筒部5がまず加熱されてろう月7の融点とほぼ等しく
なると、ろう材7が溶は出し、ノズル6と円筒部5の嵌
合部の隙間へ流れ込む。この場合、吹笛8の火口は円筒
部5から約5QcR+はど離し、吹笛8の火口の@斜角
は25°付近が最も良く、この向きは円筒部5の基端部
ないし下端部に向けることが好ましい。火口の傾斜角が
これより小さい場合には、局部的に熱を吸収しやすく、
円筒部5が全体として均一に加熱されにくい。また、大
きい場合には熱の伝達が悪くなり、温度分布がざらに不
均一となる。5- When the cylindrical part 5 is first heated to a temperature almost equal to the melting point of the wax 7, the brazing filler metal 7 melts and flows into the gap between the nozzle 6 and the cylindrical part 5. In this case, the tip of the whistle 8 should be approximately 5QcR+ away from the cylindrical portion 5, and the angle of the tip of the tip of the whistle 8 should be around 25°. It is preferable to point. If the inclination angle of the crater is smaller than this, it tends to absorb heat locally,
It is difficult for the cylindrical portion 5 to be heated uniformly as a whole. In addition, if it is large, heat transfer becomes poor and the temperature distribution becomes rough and non-uniform.
加熱に用いるガスとしてはプロパンガスおよび酸素を用
い、これらの吹出圧力はそれぞれ0.2kg、/cvお
よび0.5kg/cII12が適当である。約60秒で
ろう材7が溶けてろう付けが達せられる。Propane gas and oxygen are used as gases for heating, and their blowing pressures are suitably 0.2 kg/cv and 0.5 kg/cII12, respectively. The brazing material 7 melts in about 60 seconds and brazing is completed.
ろう材としては、例えば日本アルミツト製のAM−05
5などを用いれば、水によって冷却するだけでフラック
スを筒中に剥離除去することができるので、これが除去
されずに潤滑油に沢入し潤滑部に悪影響を与える虞れが
ない。As a brazing material, for example, AM-05 manufactured by Nippon Alumitsu
5, etc., the flux can be peeled off and removed into the cylinder simply by cooling with water, so there is no risk that the flux will not be removed and enter the lubricating oil and adversely affect the lubricated parts.
=6−
本発明は上述のように、軟管からの焔が円筒部5の基端
側から全周面について上端側へ流れるから、円筒部5か
ら加熱され、その後にろう材7が溶けて円筒部5とノズ
ル6との嵌合部の隙間に均一に流れ込むので、完全な接
合が得られる。つまり、ろう材7を直接焔で加熱するの
でなく、円筒部5とノズル6との嵌合部を全体として均
一に加熱するものであるから、円筒部5の上端部に配置
されたろう材7が内側から溶けて嵌合部へ円滑に流れ込
み、円筒部端部にはフラックスが残る。=6- As described above, in the present invention, since the flame from the soft tube flows from the base end side of the cylindrical part 5 to the upper end side over the entire circumferential surface, the cylindrical part 5 is heated, and then the brazing material 7 is melted. Since it flows uniformly into the gap between the fitting part of the cylindrical part 5 and the nozzle 6, a perfect joint can be obtained. In other words, the brazing filler metal 7 is not directly heated with a flame, but the fitting portion between the cylindrical portion 5 and the nozzle 6 is heated uniformly as a whole, so that the brazing filler metal 7 placed at the upper end of the cylindrical portion 5 is The flux melts from the inside and flows smoothly into the fitting part, leaving flux at the end of the cylindrical part.
軟管8からの焔は円筒部5に沿って上方へ流れ、ろう材
7を取り囲むので、ろう材7は円筒部5からの伝熱によ
って円筒部5の端面と接触する部分から溶け、円筒部5
とノズル6との嵌合部へすぐに流入するから、ろう材7
の回りにフラックスが残り、ろう材の滲出が避けられる
。The flame from the soft tube 8 flows upward along the cylindrical part 5 and surrounds the brazing filler metal 7, so that the brazing filler metal 7 melts from the part where it contacts the end surface of the cylindrical part 5 due to heat transfer from the cylindrical part 5, and the cylindrical part 5
Since the filler metal 7 immediately flows into the fitting part between the filler metal 7 and the nozzle 6,
Flux remains around the solder, preventing leakage of the filler metal.
軟管8の焔によって円筒部5に伝達された熱は焔ととも
に上下両方向へ伝達されるが、下端部は断熱材からなる
回転台9に支持されているので、下端部から外部へ逃げ
る熱は僅かなものであり、円筒部5がこの長さ方向にほ
ぼ均一に熱せられることとなる。The heat transferred to the cylindrical part 5 by the flame of the soft tube 8 is transferred both upward and downward along with the flame, but since the lower end is supported by the rotating table 9 made of a heat insulating material, the heat escaping from the lower end to the outside is This is a small amount, and the cylindrical portion 5 is heated almost uniformly in this length direction.
また、軟管8からの焔がろう材7に達するまでに温度が
低くなっており、ろう材7は焔の上方への流れによって
包まれるだけで、焔に直接当らないので、ろう材が変質
するのを避けることができる。Furthermore, by the time the flame from the soft tube 8 reaches the brazing filler metal 7, the temperature has become low, and the brazing filler metal 7 is only enveloped by the upward flow of the flame and does not come into contact with the flame directly, so the brazing filler metal changes in quality. can be avoided.
本発明によれば、従来困難とされていた固定軟管による
アルミニウムからなる円筒部に灼するバイブ嵌合部のろ
う付けが非常に安価な設備で自動的に行うことが可能と
なり、材料費の低減と製造費の節減を図ることができる
。According to the present invention, it is now possible to automatically braze the vibrator fitting part to the cylindrical part made of aluminum using a fixed soft tube, which has been considered difficult in the past, using very inexpensive equipment, thereby reducing material costs. It is possible to reduce the production cost and reduce the manufacturing cost.
なお、第4図に示すように、軟管8をろう付は部の回り
に多数配設すれば、ノズル6を嵌合した固定部材2は必
ずしも回転しなくても、断熱材29を介して支持台30
に固定支持するだ【プでろう付けが可能である。As shown in FIG. 4, if a large number of soft tubes 8 are arranged around the brazing part, the fixing member 2 fitted with the nozzle 6 will not necessarily rotate, but will be able to move through the heat insulating material 29. Support stand 30
It is possible to braze it with a fixed support.
第1図は本発明方法が適用される内燃機関のビスF・ン
冷却装置の概略構成図、第2図は同装置における冷却ノ
ズルの一般的なろう付は法を説明する側面図、第3図は
本発明方法を達成するための説明図、第4図は本発明の
他の方法を達成するための説明図である。
2:固定部材 5:円筒部 7:ろう材 8:軟管 3
1ニジリンダブロツク 33:アイボルト特許出願人
いすず自動車株式会社
特許出願人 株式会社 大安工業所
代理人 弁理士 山本俊夫
9−
21−
第3図
637
−へ7
第 2 図
〔二
138
32 39
第4図Fig. 1 is a schematic diagram of a bis-Front cooling system for an internal combustion engine to which the method of the present invention is applied; The figure is an explanatory diagram for achieving the method of the present invention, and FIG. 4 is an explanatory diagram for achieving another method of the present invention. 2: Fixing member 5: Cylindrical part 7: Brazing material 8: Soft tube 3
1 Niji Linda Block 33: Eye bolt patent applicant
Isuzu Motors Co., Ltd. Patent applicant Daian Kogyo Co., Ltd. Agent Patent attorney Toshio Yamamoto 9- 21- Figure 3 637 -7 Figure 2 [2138 32 39 Figure 4
Claims (3)
部にパイプを嵌合し、前記円筒部の上端部に前記パイプ
を取り囲む環状のろう材を装着し、焔が前記円筒部の下
端部に当り上端部へ沿って流れるように、前記円筒部の
下端部に吹管の火口を向けて配置し、前記焔により前記
円筒部の全周面が加熱された後に、前記ろう材が溶けて
前記嵌合部の隙間へ流れ込むようにしたことを特徴とす
る円筒部に対するパイプ嵌合部のろう付は方法。(1) Support the fixing member upright, fit a pipe into the cylindrical part of the fixing member, attach an annular brazing material surrounding the pipe to the upper end of the cylindrical part, and set the flame to the lower end of the cylindrical part. A blowpipe is placed with the mouth of the blowpipe facing the lower end of the cylindrical part so that it flows along the upper end of the cylindrical part, and after the entire circumferential surface of the cylindrical part is heated by the flame, the brazing filler metal melts. A method for brazing a pipe fitting part to a cylindrical part, characterized in that the flow flows into a gap in the fitting part.
て、前記焔により前記円筒部の全周面が加熱されるよう
にした特許請求の範囲(1)に記載の円筒部に対するパ
イプ嵌合部のろう付は方法。(2) Pipe fitting to the cylindrical portion according to claim (1), wherein the fixing member is rotated around its central axis so that the entire circumferential surface of the cylindrical portion is heated by the flame. Brazing the parts is a method.
、焔により前記円筒部の全周面が加熱されるようにした
特許請求の範囲(1)に記載の円筒部に対するパイプ嵌
合部のろう付は方法。(3) Pipe fitting to the cylindrical portion according to claim (1), wherein a large number of blowpipe are arranged on the outer peripheral side of the fixing member so that the entire circumferential surface of the cylindrical portion is heated by flames. Brazing the joint is a method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18011083A JPS6061171A (en) | 1983-09-09 | 1983-09-09 | Brazing method of part where pipe is fitted to cylindrical part |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18011083A JPS6061171A (en) | 1983-09-09 | 1983-09-09 | Brazing method of part where pipe is fitted to cylindrical part |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6061171A true JPS6061171A (en) | 1985-04-08 |
JPH0416267B2 JPH0416267B2 (en) | 1992-03-23 |
Family
ID=16077592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18011083A Granted JPS6061171A (en) | 1983-09-09 | 1983-09-09 | Brazing method of part where pipe is fitted to cylindrical part |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6061171A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4736508A (en) * | 1985-12-10 | 1988-04-12 | Recif (Societe Anonyme) | Process of manufacturing vacuum tips particularly for vacuum handling systems |
EP2842681A1 (en) * | 2013-09-02 | 2015-03-04 | Prükom Prüfgesellschaft für Metall- und Kunststoffteile mbH | Method of soldering at least two metallic workpieces using a soldering ring |
-
1983
- 1983-09-09 JP JP18011083A patent/JPS6061171A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4736508A (en) * | 1985-12-10 | 1988-04-12 | Recif (Societe Anonyme) | Process of manufacturing vacuum tips particularly for vacuum handling systems |
EP2842681A1 (en) * | 2013-09-02 | 2015-03-04 | Prükom Prüfgesellschaft für Metall- und Kunststoffteile mbH | Method of soldering at least two metallic workpieces using a soldering ring |
Also Published As
Publication number | Publication date |
---|---|
JPH0416267B2 (en) | 1992-03-23 |
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