JPS6380965A - Brazing method for aluminum - Google Patents
Brazing method for aluminumInfo
- Publication number
- JPS6380965A JPS6380965A JP22371886A JP22371886A JPS6380965A JP S6380965 A JPS6380965 A JP S6380965A JP 22371886 A JP22371886 A JP 22371886A JP 22371886 A JP22371886 A JP 22371886A JP S6380965 A JPS6380965 A JP S6380965A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- welding rod
- flux
- brazing
- welding
- 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
- 238000005219 brazing Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 24
- 229910052782 aluminium Inorganic materials 0.000 title claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 12
- 238000003466 welding Methods 0.000 claims abstract description 94
- 230000004907 flux Effects 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims 1
- 230000000171 quenching effect Effects 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 6
- 238000003825 pressing Methods 0.000 abstract description 3
- 238000007598 dipping method Methods 0.000 abstract description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000005238 degreasing Methods 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 108091092889 HOTTIP Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- -1 zinc chloride pentaaluminum fluoride Chemical compound 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
- Resistance Welding (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はアルミニウムのろう付け方法、特にトーチで加
熱しながらフラックスを付着させた溶接棒をアルミニウ
ムまたはアルミニウム合金製のワークの溶接箇所に押し
当てて接合作業を行うろう付け方法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for brazing aluminum, in particular, a welding rod coated with flux is pressed against a welding point of a workpiece made of aluminum or aluminum alloy while being heated with a torch. This relates to the brazing method for performing the work.
従来の技術
従来は職人が右手でＭ素アセチレン・バーナーを持も左
手で溶接棒を持ち溶接棒の先端をトーチで加熱し、その
焼けている溶接棒の先端を粉末状のフラックスの中に差
し込んでフラックス、を溶接棒の先端に溶着させこれを
ろう接箇所に押し当ててトーチで加熱して接合作業を行
っていたが、此の場合、溶接棒の熱のためフラックスが
溶融して溶接棒の先端に多量に付き過ぎる一方、容器の
中のフラックスが熱で溶けてポロボロの球状になり、フ
ラックスが棒に付きにくくなると共に、−旦付着しても
脱落し易くなるので作１１能率の上で障害になっていた
ばかりでなく、付着するフラックスの原が一定せず不良
品が発生する原因ともなっていた。又上記の様にフラッ
クスが溶接棒の先端に付き過ぎるとフラックスの消費ｍ
が多くなり製品コスト上も好ま７シクなく、又、ろう付
け箇所にフラックスが流れて仕上がりを悪くしたり、い
わゆる、ろう垂れが発生し易い等の欠点があった。Conventional technology In the past, a craftsman held an M-acetylene burner in his right hand and a welding rod in his left, heated the tip of the welding rod with a torch, and then inserted the hot tip of the welding rod into powdered flux. The welding process was performed by welding flux to the tip of the welding rod, pressing it against the welding point, and heating it with a torch, but in this case, the flux melted due to the heat of the welding rod and the welding rod On the other hand, if too much flux sticks to the tip of the rod, the flux in the container will melt due to heat and become a crumbly ball, making it difficult for the flux to stick to the rod, and even if it sticks, it will easily fall off, improving production efficiency. Not only was this a problem, but the source of the adhered flux was inconsistent, causing defective products. Also, as mentioned above, if too much flux adheres to the tip of the welding rod, the flux will be consumed.
This increases the cost of the product, and it also has drawbacks such as flux flowing into the brazed area, impairing the finish, and being prone to so-called solder dripping.
発明の目的
本発明は上記の従来法の欠点を除き、極めて能率的、紅
済的でしかも、仕上がり品質の橿めで帰れたアルミニウ
ムのろう付け方法を提供することを目的とするもので、
さらに、詳しくは。OBJECTS OF THE INVENTION The object of the present invention is to provide a method for brazing aluminum that is extremely efficient, economical, and provides improved finish quality, while eliminating the drawbacks of the conventional methods described above.
Further details.
加熱した溶接棒の先端を水中に瞬ｒ１的に挿入して溶接
棒の先端を急冷して脱脂すると同時に９吊の水分を付着
させることによって、極めて９団の、しかもほぼ一定量
のフラックスを溶接棒の先端に容易にしかも確実に付着
させることを可能にし、爾後のろう付け作業の能率を向
上させると共に製品仕上がりの橿めて良好なろう付け方
法を提供することを目的としている。By instantly inserting the tip of a heated welding rod into water, rapidly cooling and degreasing the tip of the welding rod, and at the same time attaching 9 drops of moisture, welding can be performed using a very large amount of flux, and almost a constant amount of flux. The purpose of the present invention is to provide a brazing method that enables easy and reliable attachment to the tip of a rod, improves the efficiency of subsequent brazing work, and improves the finished product.
発明の構成
本発明は、溶接棒の先端をその溶融点以下に加熱する工
程と、前記加熱した溶接棒の先端を瞬間的に水中に浸漬
し急冷して脱脂すると同時に該溶接棒の先端に極めて９
世の水分を付着させる工程と、上記水分の付着した溶接
棒の先端を粉末状のフラックスに接触させて溶接棒の先
端にフラックスを付着させる工程と、上記フラックスの
付着した溶接棒の先端をトーチにより加熱されているア
ルミニウムまたはアルミニウム合金製ワークの溶接箇所
に接触させてろう付けする工程よりなる事を特徴とるる
アルミニウムのろう付け方法である。Structure of the Invention The present invention comprises a step of heating the tip of a welding rod to a temperature below its melting point, and momentarily immersing the heated tip of the welding rod in water to rapidly cool and degrease the tip, and at the same time, heating the tip of the welding rod to a temperature below its melting point. 9
A process of attaching moisture from the environment, a process of contacting the tip of the welding rod with the moisture attached to powdered flux to make the flux adhere to the tip of the welding rod, and a process of attaching the tip of the welding rod with the above-mentioned flux to the tip of the welding rod with a torch. This is an aluminum brazing method characterized by comprising a step of brazing the welding point of an aluminum or aluminum alloy workpiece that is heated by a heating method.
以下１本発明をより詳細に説明する。The present invention will be explained in more detail below.
本発明で使用する溶接棒のろう材としては特に限定する
必要はなく、従来普通に使用されている物１例えばＪＩ
ＳＪＪＩ格に指定されているアルミニウム合金のロウ材
が用いられる。The brazing filler metal for the welding rod used in the present invention does not need to be particularly limited, and conventionally used brazing filler metals such as JI
An aluminum alloy brazing material designated as SJJI grade is used.
ｍ ＩＩ棒のサイズは９手作業には長さ５００ｍｍ、直
径２．４ｍｍのロッドが取り汲い上好ましく、又、自動
供給用には直径２．０ｍｍのコイル状に巻回したものが
好ましい。The size of the m II rod is 9. For manual operation, a rod with a length of 500 mm and a diameter of 2.4 mm is preferred, and for automatic feeding, a rod wound into a coil with a diameter of 2.0 mm is preferred.
本発明で使用するフラックスとしては、従来普通に使用
されているもの１例えば、塩化カリ、トヒナトリウム、
塩化亜鉛５弗化アルミニウムなどの混合物が用いられる
が、これは、Ｗ１換金屈が酸化されて黒くなり仕上がり
が汚くなるので、ｆｌ近開発された塩化リチウム系のフ
ラックスを用いることが好ましい。フラックスは粉末状
のものを使用する必要があるが、その粒度は後述するよ
うに溶接棒との付着性を高めるためにも、３００〜３５
０メツシユのものを用いることが好ましい。The fluxes used in the present invention include those commonly used in the past, such as potassium chloride, sodium chloride,
A mixture such as zinc chloride pentaaluminum fluoride is used, but since the W1 flux is oxidized and becomes black, resulting in a dirty finish, it is preferable to use a recently developed lithium chloride-based flux. It is necessary to use powdered flux, and the particle size is 300 to 35 to improve adhesion to the welding rod, as described later.
It is preferable to use one with 0 mesh.
溶接棒の先端にフラックスの粉末を安定的に付着させる
には、まず、溶接棒を溶接棒の融点以下１例えば１５０
〜５８０℃に加熱する必要がある。この加熱は、その都
度バーナーで加熱しても良いが連続的にろう付け作業を
おこなっている時は前工程のろう付けの時に溶接棒はト
ーチによって加熱されているので特に追加加熱すること
なくそのまま使用できる。In order to stably attach flux powder to the tip of the welding rod, first heat the welding rod to a temperature below the melting point of the welding rod, for example 150
Requires heating to ~580°C. This heating can be done with a burner each time, but when brazing is performed continuously, the welding rod is heated by a torch during the previous brazing process, so no additional heating is required. Can be used.
この様にして加熱された溶接棒の先端を次の工程におい
て水中に瞬間的に浸漬して急冷すると溶接棒の先端は脱
脂され同時に溶接棒の先端に９恐の水分が付着するので
あるが、浸漬する時間は、浸漬後の溶接棒の先端の温度
が１０℃以下好ましくは３０℃以下に下がらないように
する必要がある。この１度以下になると溶接棒の先端に
多量の水が付着し、溶接棒を動かしている間に水が水滴
となって落下したり、溶接棒をフラックスの中に挿入し
た時にこの水滴がフラックスの容器の中に入ってだんご
状のフラックスが沢山でき、やがてはドロドロになって
使い物にならなくなる。また、溶接棒の先端の温度が低
くなり過ぎるとろう付けの際時間がかかりすぎこの点か
らも好ましくない。一方、＠冷した溶接棒の温度があま
り高すぎると水分が全部蒸発してしまうので、８０℃以
下にする必要がある。したがって、結局は溶接棒の先端
の温度は３０〜８０℃、好ましくは、５０〜６０℃にす
ることが実用上望ましい。その為には、侵酒時間は水の
温度にも左右されるが０．３〜３．０秒の間でコントロ
ールすることによってその目的を連成することができる
。なお、この浸漬工程に於いて溶接棒の先端は完全に脱
脂されるので、とくに従来法におけるがごときの脱脂工
程を設ける必要はない。In the next step, the tip of the welding rod heated in this way is momentarily immersed in water to rapidly cool it, which degreases the tip of the welding rod and at the same time causes a large amount of moisture to adhere to the tip of the welding rod. The immersion time must be such that the temperature at the tip of the welding rod after immersion does not drop below 10°C, preferably below 30°C. If the temperature is below 1 degree, a large amount of water will adhere to the tip of the welding rod, and the water may fall as droplets while the welding rod is being moved, or when the welding rod is inserted into the flux, these water droplets may When it enters the container, a lot of dumpling-shaped flux is formed, and eventually it becomes mushy and becomes unusable. Furthermore, if the temperature at the tip of the welding rod becomes too low, it will take too much time during brazing, which is also undesirable. On the other hand, if the temperature of the cooled welding rod is too high, all the water will evaporate, so it is necessary to keep it below 80°C. Therefore, it is practically desirable that the temperature at the tip of the welding rod be 30 to 80°C, preferably 50 to 60°C. For this purpose, the purpose can be achieved by controlling the alcohol absorption time to between 0.3 and 3.0 seconds, although it also depends on the temperature of the water. In addition, since the tip of the welding rod is completely degreased in this dipping step, there is no need to provide a degreasing step as in the conventional method.
次の工程において、水分の付着した溶接棒の先端を粉末
状のフラックスの中に挿入して溶接棒の先端に極少量の
フラックスを付着せしめる。In the next step, the tip of the welding rod with moisture attached is inserted into powdered flux to deposit a very small amount of flux on the tip of the welding rod.
付着するフラックスの同は０．０１〜０．５０好ましく
は０．０３〜０．０８ｇの範囲の伍で。The amount of attached flux is in the range of 0.01 to 0.50 g, preferably 0.03 to 0.08 g.
通常、従来法によって手作業で行はれている場合の５分
の１以下である。しかも、付着したフラックスは溶接棒
の先端を下向けにしても脱落する事がないのでろう付け
作業を迅速にしかも確実に行うことができる。This is usually less than one-fifth of the amount that would be achieved manually using conventional methods. Furthermore, the adhered flux does not fall off even if the tip of the welding rod is turned downward, so the brazing work can be performed quickly and reliably.
次の工程において、先端にフラックスの付着した溶接棒
をトーチバーナーで加熱されているワークの接合箇所に
接触せしめれば操短時間にフラックスと溶接棒は接合部
に流動してろう付けが行はれる。そして、最漫に、ろう
付けされたワークを水中に投入して急冷してろう付け箇
所と母材の組織を改善すると同時にフラックスを除去す
る。本発明によれば、使用するスラックスの岳が穫めて
９伍であるので、この−回の水洗いだけで通常行なわれ
ている後処理をとくに必要としないが、この際、ごく微
量の硝酸または塩酸などを添加した水を使用すれば、後
は単に水切りの後１強υ１乾燥するだけでざらに完全な
製品を得ることが出来る。In the next step, if a welding rod with flux attached to the tip is brought into contact with the joint of the workpiece being heated by a torch burner, the flux and welding rod will flow into the joint within a short time, and brazing will not proceed. It will be done. Finally, the brazed workpiece is placed in water and rapidly cooled to improve the structure of the brazed area and base metal, and at the same time remove the flux. According to the present invention, since the slacks to be used are 9.5 in grade, there is no particular need for post-treatment that is usually carried out only by washing with water once, but at this time, a very small amount of nitric acid or If you use water to which hydrochloric acid or the like has been added, you can obtain a perfectly finished product by simply draining the water and drying it for 1 hour.
本発明のろう付方法は上記の各工程を手作業で行う事に
より実施できるが、加熱された７１１接捧を水中に浸漬
する時間や、水分の付着した溶接棒をフラックスに接触
させる度合等をｍ’ｉに管理し常に均等な製品を得る為
には各工程をコンピュータで制御される自動ろう付け１
械を用いるのが好ましい。The brazing method of the present invention can be carried out by performing each of the above steps manually, but the time for immersing the heated 711 weld in water, the degree of contact of the wet welding rod with the flux, etc. In order to control m'i and always obtain a uniform product, each process is controlled by computer, so automatic brazing 1
It is preferable to use a machine.
以下に、自動ろう付け装＝の一例について説明する。An example of automatic brazing equipment will be described below.
この自動ろう付け装置は、溶接棒の先端を水槽、フラッ
クス容器、ワークの接合箇所に順次案内し、所定時間そ
の状態を維持させる案内機構として、コンピュータで−
Ｉｔ！Ｉｆされる関節機構のついた溶接ロボットが使用
される。This automatic brazing device uses a computer as a guide mechanism to guide the tip of the welding rod sequentially to the water tank, flux container, and joint of the workpiece, and maintain that state for a predetermined period of time.
It! A welding robot with an articulated mechanism is used.
第１図において、ユはろう付けロボットを示し、溶！Ｉ
Ｏボットユは、旋回アーム２を旋回させるための旋回機
能３と、旋回アーム２を上下動させる上下動機能４を備
えている。また、旋回アーム２の先端には垂直アーム５
を回転させる第２閏節６が設けられている。そして、垂
直アームの先端５には水平アーム７を水平方向に回転さ
せる第１関節８が付設されている。In Figure 1, Yu shows a brazing robot and melts! I
The Obotyu is equipped with a turning function 3 for turning the turning arm 2 and a vertical movement function 4 for moving the turning arm 2 up and down. In addition, a vertical arm 5 is provided at the tip of the swing arm 2.
A second leap joint 6 is provided for rotating the. A first joint 8 for rotating the horizontal arm 7 in the horizontal direction is attached to the tip 5 of the vertical arm.
また、水平アーム７にはコイル状に巻回した溶接棒を保
持しそれを定量ずつ送り出す溶接棒保持装ｒｉ９が設け
られている。更に、この自動溶接装置には（１）上記溶
接棒保持ＢＩｆｆ９に保持され加熱された溶接棒の先端
を急冷する工程。Further, the horizontal arm 7 is provided with a welding rod holding device ri9 that holds a coiled welding rod and feeds it out in fixed quantities. Furthermore, this automatic welding apparatus includes (1) a step of rapidly cooling the tip of the heated welding rod held by the welding rod holder BIff9;
く２）溶接棒の先端にフラックスを付着させる工程、
（３） ｒＦＪ接工程の三つのポジションの間を予め定
められたタイムスケジュール−に従って移動させ、所定
時間その状態を維持させる。」ンピュータによる自動Ｉ
ＩＩＩ ＩＩＩ装置２０が組込まれている。一方、ワー
クステーション１１上には溶接棒を急冷する為の水１５
を収容する水槽１２と、粉末状フラックス１６を収容す
る為の容器１３と、アルミニウム製品のワーク１７を保
持するための保持手段１４が所定位置に設けられている
。2) The process of attaching flux to the tip of the welding rod,
(3) Move between the three positions of the rFJ contact process according to a predetermined time schedule and maintain that state for a predetermined time. ”Automatic I by computer
III III device 20 is incorporated. On the other hand, water 15 for rapidly cooling the welding rod is placed on the workstation 11.
A water tank 12 for accommodating a powder flux 16, a container 13 for accommodating a powdered flux 16, and a holding means 14 for holding a work 17 made of aluminum products are provided at predetermined positions.
この装置を使用するには、予め、溶接箇所。To use this device, first weld the area.
水槽、フラックス容器の三つのポジションを順次移動し
かつ所定時間その状態を維持するようにコンピューター
の記ｔＩｉｎに必要なデータを入力しておく。Necessary data is input into the computer's register so that the three positions of the water tank and the flux container are sequentially moved and the position is maintained for a predetermined period of time.
まず、ワークの溶接箇所１８と、溶接棒１５の先端をト
ーチバーナーで加熱する。連続的に溶接作業を行う場合
は前回の溶接作業によって溶接棒の先端が加熱されてい
るので、溶接棒を特に加熱する必要はない。次に、溶接
棒１０の先端を水槽１２の水１５に０．３〜３．０秒浸
漬して急冷する。これによって溶接棒の先端が脱脂され
ると共に少量の水分が付着する。First, the welding location 18 of the workpiece and the tip of the welding rod 15 are heated with a torch burner. When welding is performed continuously, the tip of the welding rod is already heated by the previous welding operation, so there is no need to particularly heat the welding rod. Next, the tip of the welding rod 10 is immersed in water 15 in a water tank 12 for 0.3 to 3.0 seconds to be rapidly cooled. This degreases the tip of the welding rod and also collects a small amount of moisture.
次に水分の付着した溶接棒の先端をフラックス容器１３
の中の粉末フラックス１６の中に挿入プる。これによっ
て溶接棒の先端に少量のフラックスが付着する。Next, put the tip of the welding rod that has moisture on it into the flux container 13.
Insert it into the powder flux 16 inside. This causes a small amount of flux to adhere to the tip of the welding rod.
次に、加熱されているワークの溶接箇所１８にＦ８接棒
１０の先端を押し付けながら溶接挿込り出し装置９を駆
動させて一定伍の溶接棒を送り出す。これによって、溶
接棒はフラックスと共に溶融して溶接箇所に万遍なく流
れてろう付けが行なわれる。Next, while pressing the tip of the F8 contact rod 10 against the heated welding location 18 of the workpiece, the welding insertion/extraction device 9 is driven to feed out a certain number of welding rods. As a result, the welding rod melts together with the flux and flows evenly over the welding area to perform brazing.
１漫に、溶接接合された製品を水中に浸漬してフラック
スを洗浄する。At one time, the welded product is immersed in water to wash away the flux.
なお、ワークの脱着はその都度人手によって行ってもよ
いが２例えば１回転テーブル上に多数のワーク保持装置
を植設し、この回転テーブルを回転させることによって
、ワークの脱り加熱、ろう付け、冷却の各工程を自助的
に行なうこともできる。Although the workpieces may be attached and detached manually each time, for example, by installing a number of workpiece holding devices on a rotary table and rotating this rotary table, the workpieces can be detached, heated, brazed, It is also possible to perform each step of cooling on its own.
実施例１゜
シ１アルミニウム合金ＡＡ６０６３のバイブを同質のア
ルミニウム合金製のネジ付き継手に接合する場合の実施
例について説明する。Example 1 An example in which a vibrator made of aluminum alloy AA6063 is joined to a threaded joint made of the same aluminum alloy will be described.
長さ１５０ｍｍ、外径１８．８８ｍｍ、肉厚１．２ｍｍ
のアルミニウム合金製パイプを内径１９ｍｍの穴を有す
るネジ付き継手に嵌め込みその接合部をトーチバーナー
で加熱してろう付けにより固定する。加熱には圧縮空気
とプロパンのトーチバーナーを用い、−次子熱７０℃。Length 150mm, outer diameter 18.88mm, wall thickness 1.2mm
An aluminum alloy pipe was fitted into a threaded joint having a hole with an inner diameter of 19 mm, and the joint was heated with a torch burner and fixed by brazing. A compressed air and propane torch burner was used for heating, and the temperature reached 70°C.
二次予熱１５０℃、三次子熱３５０℃と順次昇温して最
後に６００℃でろう付した。The temperature was increased sequentially through secondary preheating to 150°C and tertiary heating to 350°C, and finally brazing at 600°C.
ろう付けに使用する溶接棒はアルミニウム８６％、シリ
コン１１％、その他残の合金で直径２．０ｍｍのワイヤ
ー状にしたものである。The welding rod used for brazing is made of 86% aluminum, 11% silicon, and other alloys and is shaped into a wire with a diameter of 2.0 mm.
前工程でろう付け温度に加熱された溶接棒の先端を３０
℃の水にｌｌ１間的（約０．５秒）に浸漬し急冷して脱
脂した。水から引上げられた溶接棒の先端は約５０℃に
冷却されて極く少量の水が付着した。The tip of the welding rod, which was heated to the brazing temperature in the previous process, was
It was immersed briefly (about 0.5 seconds) in water at 0.degree. C., rapidly cooled, and degreased. The tip of the welding rod that was pulled out of the water was cooled to about 50°C and a very small amount of water adhered to it.
次に、この水の付着した溶接棒の先端を粉末フラックス
の中に瞬間的（０，３秒）に挿入して直ちに引上げると
溶接棒の先端に極めて少量（約０．０３Ｑ＞のフラック
スが付着した。なを、使用するフラックスは塩化リチュ
ム３０ｗｔ％、トヒカリ３０ｗｔ％、塩化ナトリウム２
Ｑｗｔ％、弗化アルミニウム２０ｗｔ％よりなり、３２
０メツシユの粉末状のものである。Next, when the tip of the welding rod with this water attached is momentarily inserted (0.3 seconds) into the powder flux and immediately pulled up, a very small amount of flux (approximately 0.03Q>) is deposited at the tip of the welding rod. The flux used was 30wt% lithium chloride, 30wt% tohikari, and 2wt% sodium chloride.
Qwt%, aluminum fluoride 20wt%, 32
It is in powder form with 0 mesh.
溶接接合された製品を硝酸０．０１％の水溶液に浸漬し
て急冷するとフラックスは全く除去された。When the welded product was immersed in a 0.01% nitric acid aqueous solution and rapidly cooled, the flux was completely removed.
本発明によれば、この作業−回の溶接で約４Ｑ、Ｑｍｍ
の溶接棒が消費された。According to the present invention, approximately 4Q, Qmm is obtained by this operation-time welding.
of welding rods were consumed.
また１本発明の方法で同一の品物を１００回連続してろ
う付けした結果、すべて、ろう付け部はスムースなアー
ルで接合されていてピンホールや、ろう垂れの発生はき
無であり、不合格品は一つもなかった。接合部分の仕上
がり色は母材のアルミニウムとほぼ同じであった。Furthermore, as a result of brazing the same item 100 times in a row using the method of the present invention, all the brazed parts were joined with a smooth radius and there were no pinholes or solder drips. Not a single product passed the test. The finished color of the joint was almost the same as the base material, aluminum.
因に、接合部分の引張り強度は２４ｋａ／ｍ作用効果
本発明によれば、加熱した溶接棒の先端を水中に瞬間的
に浸漬して急冷することにより、溶接棒の先端が脱脂さ
れるので、前処理としての脱脂工程が不要となると共に
フラックスの付着がよくなる。また、それと同時に溶接
棒の先端に適量の水が付着するので極く少量のフラック
スを確実に付着させることができる。Incidentally, the tensile strength of the joint part is 24 ka/m.According to the present invention, the tip of the welding rod is degreased by momentarily immersing the tip of the heated welding rod in water and cooling it rapidly. There is no need for a degreasing step as a pre-treatment, and flux adhesion is improved. Moreover, at the same time, an appropriate amount of water adheres to the tip of the welding rod, making it possible to reliably adhere a very small amount of flux.
このようにして溶接棒の先端に付着させたフラックスは
、すこしくらい溶接棒を振っても脱落しない程確実に付
着しているので、ろう付け作、業をスピーディにしかも
確実に行うことができる。The flux attached to the tip of the welding rod in this way is so firmly attached that it will not fall off even if the welding rod is shaken a little, so the brazing work can be done quickly and reliably.
また、少量のフラックスの使用は黒化やろう垂れを回避
し製品の仕上がりを良好にすると共に、フラックスの洗
浄工程を簡略化できる。Furthermore, using a small amount of flux can avoid blackening and wax dripping, improve the finish of the product, and simplify the flux cleaning process.
更に、フラックスの付着は即ち使用はが少なく殆ど均一
なので製品の仕上がりも均一でコストを署しく削減する
ことができる。Furthermore, since the amount of flux attached is small and almost uniform, the finish of the product is also uniform and costs can be significantly reduced.
第１図は１本発明の方法を実施するのに適した自ｌｌｌ
ろう付け装置の一例をしめすもので、全体の斜視図を示
す。
図中、１は溶接ロボット、２は旋回アーム、３は旋回機
能、４は上下動機能、９は溶１ａ捧保持ＨＨ，１２は水
槽、１３はフラックス容器、１５は溶接棒、１８はろう
付け箇所である。
才／のFIG. 1 shows a device suitable for carrying out the method of the present invention.
It shows an example of a brazing device, and shows a perspective view of the whole. In the figure, 1 is a welding robot, 2 is a rotating arm, 3 is a rotating function, 4 is a vertical movement function, 9 is a welding rod holding HH, 12 is a water tank, 13 is a flux container, 15 is a welding rod, and 18 is brazing It is a place. talented/of
Claims (2)
と、前記加熱した溶接棒の先端を瞬間的に水中に浸漬し
て急冷して脱脂すると同時に該溶接棒の先端に極めて少
量の水分を付着させる工程と、上記水分の付着した溶接
棒の先端を粉末状のフラックスに接触させて該溶接棒の
先端にフラックスを付着させる工程と、上記フラックス
の付着した溶接棒の先端をトーチにより加熱されている
アルミニウムまたはアルミニウム合金製ワークの溶接箇
所に接触させてろう付けする工程よりなることを特徴と
するアルミニウムのろう付け方法。(1) The process of heating the tip of the welding rod to a temperature below its melting temperature, and the process of momentarily immersing the heated tip of the welding rod in water to rapidly cool it and degrease it, while at the same time removing a very small amount of moisture from the tip of the welding rod. a step of contacting the tip of the welding rod with moisture attached to powdered flux to make the flux adhere to the tip of the welding rod, and heating the tip of the welding rod with the flux attached with a torch. A method for brazing aluminum, which comprises the step of brazing in contact with a welding point of an aluminum or aluminum alloy workpiece.
硝酸を微量に添加した水中に浸漬して急冷する事を特徴
とする特許請求範囲第１項記載のアルミニウムのろう付
け方法。(2) The method for brazing aluminum according to claim 1, characterized in that the workpiece that has been brazed is immersed in water or water to which a small amount of hydrochloric acid or nitric acid has been added for quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22371886A JPH0677825B2 (en) | 1986-09-24 | 1986-09-24 | Aluminum brazing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22371886A JPH0677825B2 (en) | 1986-09-24 | 1986-09-24 | Aluminum brazing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6380965A true JPS6380965A (en) | 1988-04-11 |
| JPH0677825B2 JPH0677825B2 (en) | 1994-10-05 |
Family
ID=16802585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22371886A Expired - Fee Related JPH0677825B2 (en) | 1986-09-24 | 1986-09-24 | Aluminum brazing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0677825B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354952A (en) * | 2001-06-01 | 2002-12-10 | Taisei Corp | Artificial seaweed bed |
-
1986
- 1986-09-24 JP JP22371886A patent/JPH0677825B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354952A (en) * | 2001-06-01 | 2002-12-10 | Taisei Corp | Artificial seaweed bed |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0677825B2 (en) | 1994-10-05 |
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