JPH077020Y2 - Brazing furnace - Google Patents
Brazing furnaceInfo
- Publication number
- JPH077020Y2 JPH077020Y2 JP9067290U JP9067290U JPH077020Y2 JP H077020 Y2 JPH077020 Y2 JP H077020Y2 JP 9067290 U JP9067290 U JP 9067290U JP 9067290 U JP9067290 U JP 9067290U JP H077020 Y2 JPH077020 Y2 JP H077020Y2
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- gas
- furnace
- conduit
- heating
- 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 - Lifetime
Links
- 238000005219 brazing Methods 0.000 title claims description 38
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 21
- 238000007664 blowing Methods 0.000 claims description 13
- 150000001639 boron compounds Chemical class 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 35
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 18
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 12
- 239000011701 zinc Substances 0.000 description 11
- 229910052725 zinc Inorganic materials 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910001873 dinitrogen Inorganic materials 0.000 description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 6
- 238000007667 floating Methods 0.000 description 6
- 230000004907 flux Effects 0.000 description 6
- 239000004327 boric acid Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 3
- 239000010951 brass Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000001638 boron Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Landscapes
- Tunnel Furnaces (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案はろう付け炉とりわけ銅系製品のろう付けに好適
なろう付け炉に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a brazing furnace, particularly to a brazing furnace suitable for brazing copper-based products.
導波管や冷凍機等には黄銅で代表される銅系部品が使用
されることが多く、かかる黄銅系部品のろう付け手段と
して還元性雰囲気を用いたトンネル型電気炉が汎用され
ている。Copper-based parts typified by brass are often used in waveguides, refrigerators, and the like, and tunnel-type electric furnaces using a reducing atmosphere are commonly used as brazing means for such brass-based parts.
しかし、この還元性雰囲気ガスを使用しても、母材中に
含まれる亜鉛蒸気が旺盛に発生するため、雰囲気が汚損
されたり、亜鉛蒸気が被処理物に付着して濡れ性を悪化
させやすく、良好なろう付けを実現しがたい。However, even if this reducing atmosphere gas is used, the zinc vapor contained in the base material is vigorously generated, so the atmosphere is polluted, and zinc vapor easily adheres to the object to be treated and deteriorates the wettability. , It is difficult to achieve good brazing.
そこでやむなくフラックスレス化をあきらめ、フラック
スを接合面に塗布してトーチろう付けや雰囲気ろう付け
する方法が一般に採用されているが、フラックスの塗布
工程が不可欠となるため工数が増し、またフラックスに
含まれる有害物質の蒸気が雰囲気を汚損したり、炉外に
漏出して公害問題を引き起こす危険がある。しかも、フ
ラックス成分の残渣が残り、これが経年時にろう付け製
品の急激な品質劣化をもたらしやすい。Therefore, the method of giving up fluxlessness and applying flux to the joint surface and brazing torch or atmosphere is generally adopted, but the number of man-hours increases because the flux application process is indispensable, and it is included in the flux. Hazardous substance vapor may pollute the atmosphere or leak out of the furnace to cause pollution problems. Moreover, the residue of the flux component remains, which tends to cause rapid deterioration of the quality of the brazed product over time.
この対策として本考案者は、実公昭58-356050公報にお
いて、炉外にガス浄化装置を設け、炉内の浮き型炉芯管
に前記ガス浄化装置と接続した吸引排気部を設けること
で炉内雰囲気ガス中の亜鉛分を除去し、再生ガスとして
循環させるようにした装置を提案した。As a countermeasure against this problem, the present inventor has proposed in JP-B-58-356050 that a gas purifying device is provided outside the furnace and a floating exhaust core tube inside the furnace is provided with a suction / exhaust part connected to the gas purifying device. We proposed a device that removes the zinc content from the atmosphere gas and circulates it as a regeneration gas.
しかし、この先行技術は被処理物からの亜鉛蒸気の発生
そのものを防止するのではなく、亜鉛蒸気の拡散を防止
するものであるから、アンモニア分解ガスなどの高価な
雰囲気ガスを多量に必要とする点は変わりなく、装置コ
ストやランニングコストが高くなり、また、単に雰囲気
ガスとして還元性ガスを使用するだけであるため、濡れ
性が不十分となりやすく、これを補うにはフラックスを
使用するほかなく、そうすると前記したような不都合が
生ずる。However, since this prior art does not prevent the generation of zinc vapor from the object to be treated but the diffusion of zinc vapor, it requires a large amount of expensive atmospheric gas such as ammonia decomposition gas. There is no change in the point, the equipment cost and running cost are high, and since only reducing gas is used as the atmospheric gas, the wettability tends to be insufficient, and in order to compensate for this we need to use flux. If so, the above-mentioned inconvenience occurs.
本考案は前記のような問題点を解消するために考案され
たもので、その目的とするところは、亜鉛蒸気の発生を
減少させつつ良好な濡れ性を確保してろう付けを行える
簡易なろう付け炉を提供することにある。The present invention was devised to solve the above-mentioned problems, and the purpose thereof is to simplify brazing while ensuring good wettability while reducing the generation of zinc vapor. It is to provide a furnace.
上記目的を達成するため本考案は、加熱部の前後に冷却
筒を連設した炉本体と、被処理物を収容し下部に排気穴
を有し内部にガス吹き出し部を有する移動自在な処理ボ
ックスと、炉本体の外部にあってほう素化合物溶液を蒸
発させることでほう素含有ウエットガスを生成供給する
装置と、前記ガス生成供給装置とガス吹き出し部を結ぶ
導管を備えた構成としたものである。In order to achieve the above object, the present invention provides a movable processing box having a furnace body in which cooling tubes are connected in front of and behind a heating section, an object to be processed, an exhaust hole at a lower portion, and a gas blowing portion inside. A device for generating and supplying a boron-containing wet gas by evaporating the boron compound solution outside the furnace body, and a configuration for connecting the gas generating and supplying device and the gas blowing section with a conduit. is there.
以下本考案の実施例を添付図面に基いて説明する。 An embodiment of the present invention will be described below with reference to the accompanying drawings.
第１図ないし第３図は本考案によるろう付け炉の一実施
例を示している。1 to 3 show an embodiment of a brazing furnace according to the present invention.
１は炉本体であり、トンネル状加熱部1aの前後に冷却筒
1b,1bを連設している。トンネル状加熱部1aは耐火物製
の炉体100に発熱体101を配設し、発熱体101の内側に炉
芯管102を内設してなる。Reference numeral 1 is a furnace body, and cooling tubes are provided in front of and behind the tunnel-shaped heating portion 1a.
1b and 1b are connected in series. The tunnel-shaped heating unit 1a is configured by disposing a heating element 101 in a furnace body 100 made of a refractory material and disposing a furnace core tube 102 inside the heating element 101.
冷却筒1b,1bは、それぞれ前記炉芯管102と直列に接続さ
れた内筒103の外周に水冷ジャケット104を囲繞してな
り、冷却管1b,1bの端部には被ろう付け物の装脱口105,1
06が設けられている。そして、前記炉芯管102と内筒103
底には、すのこ状をなした移動ガイド107が敷設されて
いる。Each of the cooling tubes 1b, 1b is formed by surrounding a water cooling jacket 104 on the outer circumference of an inner tube 103 connected in series with the furnace core tube 102, and the ends of the cooling tubes 1b, 1b are equipped with a brazed object. Escapement 105,1
06 is provided. Then, the furnace core tube 102 and the inner cylinder 103
On the bottom, a moving guide 107 in the shape of a slats is laid.
2,2は前記炉本体１の加熱部1aに交互に挿脱される２つ
の処理ボックスであり、第２図と第３図に示すように、
上部の開口した箱体2aと開口に着脱自在に取付けられる
蓋体2bからなり、箱体2aの内部は多孔板からなる浮き底
20で仕切られ、浮き底20の下部には排気室21が画成さ
れ、箱体2aの壁を貫く複数個の排気穴22により外部と通
じている。Reference numerals 2 and 2 denote two processing boxes that are alternately inserted into and removed from the heating unit 1a of the furnace body 1, as shown in FIGS. 2 and 3.
It consists of a box 2a with an open top and a lid 2b that is detachably attached to the opening, and the inside of the box 2a is a floating bottom made of a perforated plate.
An exhaust chamber 21 is defined below the floating bottom 20 by a partition 20 and communicates with the outside by a plurality of exhaust holes 22 penetrating the wall of the box 2a.
浮き底20の上部には蓋体2bとで密閉された雰囲気ろう付
け室23が画成され、この雰囲気ろう付け室23の上部域に
は多数のガス吹き出し穴24を配設した吹き出しノズル2
c,2cが固定されている。An atmosphere brazing chamber 23, which is sealed with the lid 2b, is defined in the upper part of the floating bottom 20, and in the upper region of the atmosphere brazing chamber 23, a large number of gas blowing holes 24 are provided in the blowing nozzle 2
c and 2c are fixed.
前記吹き出しノズル2c,2cはこの実施例ではパイプ状を
なし、箱体2aに嵌挿固定された供給管2dから分岐されて
いる。前記供給管2dは装脱操作具を兼ねた導管３に接続
されており、導管３は処理ボックス２が加熱部1aに位置
するときにも装脱口105,106から外部に延びるような長
さを有している。The blowing nozzles 2c, 2c have a pipe shape in this embodiment, and are branched from a supply pipe 2d fitted and fixed to the box body 2a. The supply pipe 2d is connected to a conduit 3 that also serves as a loading / unloading operation tool, and the conduit 3 has a length that extends outside from the loading / unloading ports 105 and 106 even when the processing box 2 is located in the heating section 1a. ing.
４はほう素含有ウエットガス生成装置であり、炉外に設
置されている。このほう素含有ウエットガス生成装置４
は、第１図に示すように、ほう酸・アルコール溶液を収
容して蒸発させる密閉容器状の本体4aと、これを外囲す
る加熱用容器4bと、溶液補給器4cを備えている。Reference numeral 4 denotes a boron-containing wet gas generator, which is installed outside the furnace. This boron-containing wet gas generator 4
As shown in FIG. 1, the main body 4a includes a main body 4a in the form of a closed container for containing and evaporating a boric acid / alcohol solution, a heating container 4b surrounding the main body 4a, and a solution replenisher 4c.
本体4aには、ほう素化合物溶液６が収容されている。こ
の代表例としては、ほう酸（H3BO3）を10〜30％濃度と
なるように溶解したアルコールたとえばメタノール（CH
3OH）である。本体4aは液面計40からの信号で作動する
制御弁41を介して溶液補給器4cと接続され、密閉容器4a
内に常に適量のほう素化合物溶液６が蓄えられるように
なっている。加熱用容器4bには水等の加熱媒体７が収容
されるとともにこれを加熱するヒータ46が配され、該ヒ
ータ46によりほう素化合物溶液６を25〜35℃に加熱する
ようになっている。The boron compound solution 6 is contained in the main body 4a. As a typical example of this, an alcohol such as boric acid (H 3 BO 3 ) dissolved at a concentration of 10 to 30%, such as methanol (CH 3
3 OH). The main body 4a is connected to the solution replenisher 4c via a control valve 41 that operates by a signal from the liquid level gauge 40, and the closed container 4a
An appropriate amount of the boron compound solution 6 is always stored therein. The heating container 4b contains a heating medium 7 such as water and a heater 46 for heating the heating medium 7. The heater 46 heats the boron compound solution 6 to 25 to 35 ° C.
密閉容器4aの上部蒸発空間42にはウエットガス取出し部
43が位置し、ウエットガス取出し部43は制御弁440を備
えた供給配管44とフレキシブル導管45を介して前記導管
３に接続されている。また、供給配管44には分岐配管44
1が接続され、該分岐配管441はフレキシブル導管45を介
していまひとつの処理ボックス２に対するの導管３に接
続されている。図示しないが、ウエットガス取出し部43
から好ましくは導管３の所要範囲はテープヒータ等によ
り50℃前後に加温されるようになっている。In the upper evaporation space 42 of the closed container 4a, a wet gas extraction unit
43 is located and the wet gas extraction part 43 is connected to the conduit 3 via a supply conduit 44 with a control valve 440 and a flexible conduit 45. In addition, the supply pipe 44 has a branch pipe 44
1 is connected, and the branch pipe 441 is connected to a conduit 3 for another processing box 2 via a flexible conduit 45. Although not shown, the wet gas extraction unit 43
Preferably, the required range of the conduit 3 is heated to about 50 ° C. by a tape heater or the like.
そして、前記供給配管44には制御弁80と流量計を有する
窒素ガス供給管８が接続されるとともに、これとパラレ
ルに制御弁90と流量計を有する空気供給管９が接続さ
れ、この空気供給管９は分岐管92を有し、該分岐管92は
密閉容器4a内のバブリングノズル91に導かれ、ほう素化
合物溶液６に空気を吹込むようになっている。A nitrogen gas supply pipe 8 having a control valve 80 and a flow meter is connected to the supply pipe 44, and a control valve 90 and an air supply pipe 9 having a flow meter are connected in parallel to the control valve 80 and the air supply pipe. The pipe 9 has a branch pipe 92, and the branch pipe 92 is guided to a bubbling nozzle 91 in the closed container 4a to blow air into the boron compound solution 6.
なお、図示するものは本考案の一例であり、処理ボック
ス２に導管３と別の挿脱操作手段を設けてもよい。ま
た、加熱部1aと冷却部1b,1bの間には必要に応じ開閉シ
ャッタを設けてもよい。It should be noted that what is shown is an example of the present invention, and the processing box 2 may be provided with an insertion / removal operation means other than the conduit 3. Further, an opening / closing shutter may be provided between the heating unit 1a and the cooling units 1b, 1b, if necessary.
次に本考案の使用方法と作用を説明する。 Next, the usage and operation of the present invention will be described.
銅系製品をろう付けするに当たっては、空気供給管９の
分岐管91から空気をバブリングノズル91に送るととも
に、ヒータ46により加熱媒体７を加熱して本体4aを適温
に熱する。それにより本体4a中のほう酸をエタノールで
溶解した溶液が気泡に帯同されるため、ほう酸を含むメ
タノール蒸気と空気（N2＋21％O2）の混じったガスとし
て取出し部43から供給配管44に連続して取り出される。When brazing a copper-based product, air is sent from the branch pipe 91 of the air supply pipe 9 to the bubbling nozzle 91, and the heater 46 heats the heating medium 7 to heat the main body 4a to an appropriate temperature. As a result, the solution of boric acid in the main body 4a dissolved in ethanol is combined with the bubbles, so that a gas containing a mixture of methanol vapor containing boric acid and air (N 2 + 21% O 2 ) is continuously supplied from the extraction section 43 to the supply pipe 44. And taken out.
処理ボックス２を炉外に取出し、蓋体2bを取外してろう
付け室23を開放し、浮き底20に所要のろう材たとえば銀
ろうを配したろう付け被処理物Ａを配置する。そして、
蓋体2bを施した後、挿脱口105から冷却部2bに位置さ
せ、制御弁80を開弁して窒素ガスを供給する。The processing box 2 is taken out of the furnace, the lid 2b is removed, the brazing chamber 23 is opened, and a brazing object A on which a required brazing material, for example, silver brazing is arranged, is placed on the floating bottom 20. And
After applying the lid 2b, the lid 2b is positioned at the cooling unit 2b through the insertion / extraction opening 105, the control valve 80 is opened, and nitrogen gas is supplied.
この窒素ガスは供給配管44からフレキシブル導管45を経
て導管３に送られ、供給管2dから吹き出しノズル2cに送
入され、吹き出し穴24からろう付け室23に吹き出され
る。吹き出された窒素ガスはろう付け被処理物Ａに吹き
当たり、浮き底20に配設されている多数の通孔200から
排気室21に抜け、排気穴22から冷却筒2bに流出する。窒
素ガスはこの冷却室2bから炉芯管102に流れ、他方の冷
却室2bから排出される。これにより処理ボックス２のろ
う付け室23が雰囲気置換される。This nitrogen gas is sent from the supply pipe 44 to the conduit 3 via the flexible conduit 45, is supplied from the supply pipe 2d to the blowing nozzle 2c, and is blown from the blowing hole 24 into the brazing chamber 23. The blown-out nitrogen gas blows against the object A to be brazed, passes through a large number of through holes 200 provided in the floating bottom 20 into the exhaust chamber 21, and flows out through the exhaust hole 22 into the cooling cylinder 2b. Nitrogen gas flows from this cooling chamber 2b to the furnace core tube 102, and is discharged from the other cooling chamber 2b. This replaces the atmosphere in the brazing chamber 23 of the processing box 2.
次いで制御弁440を開弁すれば、前記ほう酸溶解メタノ
ール蒸気と空気の混合ガスが供給管44から導管３を経て
処理ボックス２に送り込まれる。この状態で、導管３を
操作棒として処理ボックス２を移動ガイド107に沿って
加熱部1aに移置し、所要時間保持する。Next, when the control valve 440 is opened, the mixed gas of boric acid-dissolved methanol vapor and air is sent from the supply pipe 44 to the processing box 2 through the conduit 3. In this state, the treatment box 2 is transferred to the heating unit 1a along the movement guide 107 using the conduit 3 as an operating rod, and is held for the required time.
こうすれば、処理ボックス２とその中に収容されている
ろう付け被処理物Ａは、発熱体101により急加熱され、
同時に導管３から連続供給されているほう酸溶解メタノ
ール蒸気と空気の混合ガスが吹き出し穴24からろう付け
室23内のろう付け被処理物Ａにまんべんなく吹き付けら
れる。この混合ガスはH2やCO、CO2を含む弱還元性ガス
であるためろう付け被処理物Ａの表面の酸化膜の発生を
抑制し、しかも加熱部2bからの熱によりほう酸が分解さ
れてほう素Ｂとなり、これがろう付け被処理物Ａの表面
酸化膜を溶解し活性化させる。したがって、フラックス
を使用しないにもかかわらず、ろう付け被処理物Ａの濡
れ性やろうの流れが良好になる。In this way, the processing box 2 and the brazing object A housed therein are rapidly heated by the heating element 101,
At the same time, the mixed gas of boric acid-dissolved methanol vapor and air continuously supplied from the conduit 3 is evenly sprayed from the blowing hole 24 to the brazing object A in the brazing chamber 23. Since this mixed gas is a weak reducing gas containing H 2 , CO, and CO 2 , the generation of an oxide film on the surface of the brazing object A is suppressed, and the boric acid is decomposed by the heat from the heating part 2b. It becomes boron B, which dissolves and activates the surface oxide film of the brazing object A. Therefore, although the flux is not used, the wettability of the brazing object A and the flow of the brazing material are good.
前記のようにろう付け被処理物Ａに作用したガスは、排
気室21から排気穴22を経て処理ボックス２から排出され
る。ろう付け被処理物Ａからは亜鉛が蒸発するが、ろう
付け被処理物Ａはほう素を含有する新鮮な還元性ガスで
絶えず洗われているため、良好な環境で行われる。The gas acting on the brazing object A as described above is discharged from the processing box 2 from the exhaust chamber 21 through the exhaust hole 22. Although zinc evaporates from the brazing object A, the brazing object A is constantly washed with a fresh reducing gas containing boron, and therefore, is performed in a good environment.
そして、ろう付け後は導管３を操作して処理ボックス２
を冷却部1bに戻す。このようなことから、ろう付け被処
理物Ａは急熱、急冷条件でろう付けされることになり、
亜鉛蒸気の発生温度域を短時間で通過させることができ
るため、亜鉛蒸気の発生そのものも少なくなる。発生し
た亜鉛蒸気は急冷を受けて固化し、冷却部1bの移動ガイ
ド等に付着するから、簡単に排出することができる。処
理ボックス２は次いで炉外に取り出され、蓋体2bを除去
することによりろう付け製品の取り出しと付着亜鉛粉末
の除去が行われる。Then, after brazing, the conduit 3 is operated to operate the processing box 2
To the cooling unit 1b. From this, the brazing object A will be brazed under rapid heating and cooling conditions,
Since it can pass through the zinc vapor generation temperature range in a short time, the generation of zinc vapor itself is reduced. The generated zinc vapor is rapidly cooled and solidified, and adheres to the movement guide or the like of the cooling unit 1b, so that it can be easily discharged. The processing box 2 is then taken out of the furnace, and the brazed product and the attached zinc powder are removed by removing the lid 2b.
今一つの処理ボックス２は挿脱口106から取り出されて
ろう付け被処理物が装填される。その時には分岐配管44
1の制御弁442は閉弁されている。そして、第１図のよう
に加熱部1aに処理ボックス２を位置させてろう付けを行
っている間、ろう付け被処理物が装填された処理ボック
ス２は右側の水冷室1bに入れられ、待機されながら制御
弁442より下流に接続された窒素ガス分岐導管81から窒
素ガスが供給されることにより雰囲気置換される。The other processing box 2 is taken out from the insertion / removal opening 106 and loaded with the object to be brazed. Then branch pipe 44
The control valve 442 of 1 is closed. Then, as shown in FIG. 1, while the treatment box 2 is positioned in the heating unit 1a and brazing is performed, the treatment box 2 loaded with the object to be brazed is put in the water cooling chamber 1b on the right side and waits. At the same time, the atmosphere is replaced by supplying the nitrogen gas from the nitrogen gas branch conduit 81 connected downstream of the control valve 442.
左側の処理ボックス２が冷却部1bに戻されると同時に、
制御弁442が開弁され、前記組成のガスが待機中の右側
処理ボックス２に供給される。そこで導管３により右側
処理ボックス２を加熱部1aに装入すれば、前記と同じよ
うに、ほう酸溶解メタノールと空気との混合ガスが供給
され、適切なろう付けが行われ、その間、左側の処理ボ
ックス２にはろう付け被処理物が装填され、冷却部1bに
おいて窒素ガスにより雰囲気置換される。At the same time as the left processing box 2 is returned to the cooling unit 1b,
The control valve 442 is opened, and the gas having the composition is supplied to the waiting right side processing box 2. Therefore, if the right side treatment box 2 is charged into the heating section 1a through the conduit 3, a mixed gas of boric acid-dissolved methanol and air is supplied and appropriate brazing is performed in the same manner as described above, while the left side treatment is performed. An object to be brazed is loaded in the box 2, and the atmosphere is replaced with nitrogen gas in the cooling unit 1b.
以下左右の処理ボックス2,2が交互に装入されることで
能率よく銅系製品のろう付けが行われる。Thereafter, the left and right processing boxes 2 and 2 are alternately charged to efficiently braze copper-based products.
以上説明した本考案によるときには、加熱部1aの前後に
冷却部1b,1bを連設した炉本体１と、被処理物を収容し
下部に排気穴22を有し内部にガス吹き出し部2cを有する
移動自在な処理ボックス２と、炉本体の外部にあってほ
う素化合物溶液を蒸発させたウエットガスを生成供給す
る装置４と、前記ガス生成供給装置とガス吹き出し部2c
を結ぶ導管３を備えているおり、処理ボックス２を冷却
部1bから加熱部1aに移置しろう付け後冷却部1bに戻す急
熱・急冷サイクルでろう付けを行うため、亜鉛蒸気の発
生量を少なくすることができる上に、ほう酸を含むメタ
ノールと空気の混合ガスを被ろう付け物に絶えず接触さ
せるため、濡れ性が良好となり、黄銅製品等の良好なろ
う付けを行うことができる。その上構造も簡単で、使用
ガス原料も安価でしかも少量で済むため、ろう付け処理
コストも安価にすることができる。According to the present invention described above, the furnace body 1 in which the cooling parts 1b and 1b are connected in front of and behind the heating part 1a, the object to be treated is accommodated, the exhaust hole 22 is provided in the lower part, and the gas blowing part 2c is provided inside. A movable processing box 2, an apparatus 4 for generating and supplying a wet gas, which is outside the furnace body and in which a boron compound solution is evaporated, the gas generation and supply apparatus, and a gas blowing section 2c.
Since the process box 2 is transferred from the cooling unit 1b to the heating unit 1a and brazing is performed in a rapid heating / quenching cycle of returning to the cooling unit 1b after brazing, the amount of zinc vapor generated is increased. In addition, since the mixed gas of methanol containing boric acid and air is constantly brought into contact with the object to be brazed, the wettability becomes good, and good brazing of brass products and the like can be performed. In addition, the structure is simple and the gas raw material used is inexpensive and a small amount can be used, so that the brazing cost can be reduced.
第１図は本考案によるろう付け炉の一実施例を示す断面
図、第２図は第１図の部分的拡大図、第３図は第２図II
I-III線に沿う断面図である。 １……炉本体、1a……加熱部、1b,1b……冷却部、２…
…処理ボックス、2a……本体……2b……蓋体、2c……吹
き出しノズル、３……導管、４……ほう素含有雰囲気ガ
ス生成装置、６……ほう素化合物溶液1 is a sectional view showing an embodiment of a brazing furnace according to the present invention, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is FIG. 2 II.
It is a sectional view taken along the line I-III. 1 ... Furnace body, 1a ... Heating part, 1b, 1b ... Cooling part, 2 ...
... Processing box, 2a ... Main body ... 2b ... Lid body, 2c ... Blowing nozzle, 3 ... Conduit, 4 ... Boron-containing atmosphere gas generator, 6 ... Boron compound solution
Claims (1)
と、被処理物を収容し下部に排気穴を有し内部にガス吹
き出し部を有する移動自在な処理ボックスと、炉本体の
外部にあってほう素化合物溶液を蒸発してほう素含有ウ
エットガスを生成供給する装置と、前記ガス生成供給装
置とガス吹き出し部を結ぶ導管を備えたことを特徴とす
るろう付け炉。1. A furnace main body in which a cooling cylinder is connected in front of and behind a heating part, a movable processing box for accommodating an object to be processed, having an exhaust hole at a lower part and having a gas blowing part inside, and a furnace main body. A brazing furnace, which is externally provided with a device for evaporating a boron compound solution to generate and supply a boron-containing wet gas, and a conduit connecting the gas generation and supply device to a gas blowing section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9067290U JPH077020Y2 (en) | 1990-08-31 | 1990-08-31 | Brazing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9067290U JPH077020Y2 (en) | 1990-08-31 | 1990-08-31 | Brazing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0447859U JPH0447859U (en) | 1992-04-23 |
| JPH077020Y2 true JPH077020Y2 (en) | 1995-02-22 |
Family
ID=31825620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9067290U Expired - Lifetime JPH077020Y2 (en) | 1990-08-31 | 1990-08-31 | Brazing furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077020Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007180442A (en) * | 2005-12-28 | 2007-07-12 | Toyota Industries Corp | Soldering container and semiconductor device manufacturing method |
-
1990
- 1990-08-31 JP JP9067290U patent/JPH077020Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0447859U (en) | 1992-04-23 |
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