JPH0455058A - Inert gas supplying device for inert gas brazing furnace - Google Patents

Inert gas supplying device for inert gas brazing furnace

Info

Publication number
JPH0455058A
JPH0455058A JP16375090A JP16375090A JPH0455058A JP H0455058 A JPH0455058 A JP H0455058A JP 16375090 A JP16375090 A JP 16375090A JP 16375090 A JP16375090 A JP 16375090A JP H0455058 A JPH0455058 A JP H0455058A
Authority
JP
Japan
Prior art keywords
inert gas
brazing
oxygen
pressure
mixer
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
Application number
JP16375090A
Other languages
Japanese (ja)
Inventor
Michio Shiroyama
白山 三智雄
Otonobu Sukimoto
鋤本 己信
Hitoshi Akiyoshi
秋好 鈞
Naoyuki Koga
直行 古賀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP16375090A priority Critical patent/JPH0455058A/en
Publication of JPH0455058A publication Critical patent/JPH0455058A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To allow the accumulation of a proper amt. of a brazing material in a brazing section, to prevent a soldering defect and to allow secure brazing by mixing an inert gas and oxygen in a mixer and regulating the oxygen concn. in the inert gas to a desired concn. CONSTITUTION:The pressure of the inert gas delivered from a vessel 2 for supplying the inert gas is dropped to the pressure lower than the pressure in the vessel 2 by a pressure regulator 5 and the flow velocity thereof is regulated by a regulator 6. The gas is regulated in flow rate in this way and is sent into the mixer 7. On the other hand, a prescribed amt. of the atm. air is sucked by a fixed delivery pump 12 into a dryer 3 and dry air is formed. Further, this dry air is sucked by the fixed delivery pump 12 and is filtered by a filter 10; thereafter, the pressure thereof is dropped to the pressure lower than the pressure in the vessel 3 by a pressure regulator 11 and the prescribed amt. thereof is sent into the mixer 7. The inert gas and dry air are mixed in the mixer 7 and the oxygen concn. in the inert gas is adjusted to the desired concn. The inert gas mixed with the oxygen is sent to the furnace 1.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は不活性ガスろう付炉用不活性ガス供給装置に
関し、さらに詳しくいえば、第1アルミニウム材と、第
1アルミニウム材の端部を差込む孔を有する第2アルミ
ニウム材とを、第1アルミニウム材の端部を第2アルミ
ニウム材の孔に差込んだ状態で不活性ガスろう付を行う
のに用いられる不活性ガスろう付炉に不活性ガスを供給
する装置に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an inert gas supply device for an inert gas brazing furnace, and more specifically, a first aluminum material and an end portion of the first aluminum material are inserted. A second aluminum material having holes is placed in an inert gas brazing furnace used for performing inert gas brazing with the end of the first aluminum material inserted into the hole of the second aluminum material. This invention relates to a gas supply device.

この明細書において、「不活性ガス」という語は、アル
ゴン、ヘリウム、クリプトン、キセノン等の周期表の不
活性ガスの他に、窒素ガス等のアルミニウムに対して不
活性なガス、およびこれらの混合ガスも含むものとする
In this specification, the term "inert gas" refers to inert gases on the periodic table such as argon, helium, krypton, and xenon, as well as gases that are inert to aluminum such as nitrogen gas, and mixtures thereof. It also includes gas.

従来の技術 一般に、カークーラ用コンデンサやラジェータ等のアル
ミニウム製熱交換器を製造する場合のように、アルミニ
ウム部材をろう付する必要があるときには、通常、塩化
物系または弗化物系のフラックスを使用し、不活性ガス
ろう付炉内において不活性ガス雰囲気中でろう付を行っ
ている。
Conventional technology Generally, when aluminum parts need to be brazed, such as when manufacturing aluminum heat exchangers such as car cooler condensers and radiators, chloride-based or fluoride-based fluxes are usually used. , brazing is performed in an inert gas atmosphere in an inert gas brazing furnace.

上記不活性ガスろう付炉に不活性ガスを供給する装置と
しては、従来、導管を介して炉に接続されており、かつ
不活性ガスが封入されている不活性ガス供給用容器と、
導管の途中に容器側から設けられている圧力調整器、調
速機、および流量計とよりなるものが用いられていた。
Conventionally, devices for supplying inert gas to the inert gas brazing furnace include an inert gas supply container connected to the furnace via a conduit and filled with inert gas;
A system consisting of a pressure regulator, speed governor, and flow meter installed from the container side in the middle of the conduit was used.

発明が解決しようとする課題 以下の説明において、全図面を通じて同一物および同一
部分には同一符号を付して説明を省略する。
Problems to be Solved by the Invention In the following description, the same parts and parts are denoted by the same reference numerals throughout all the drawings, and the description thereof will be omitted.

しかしながら、たとえば横断面円形、方形または他の形
状の筒状の第1アルミニウム材と、第1アルミニウム材
の端部を差込む孔を有する第2アルミニウム材とを、第
1アルミニウム材の端部を第2アルミニウム材の孔に差
込んだ状態でろう付する場合、たとえば自動車用吸気マ
ニホルドを製造するにあたって、一端が開口するととも
に他端が閉鎖されたアルミニウム製筒状プレナムチャン
バの開口端部と、アルミニウム製スロットルボディ取付
体とのろう付を従来の不活性ガス供給装置を備えた不活
性ガスろう付炉で行うと、次のような問題が生じる。す
なわち、従来の不活性ガス供給装置は、そもそも炉内の
不活性ガス雰囲気中の酸素濃度をOにすることを目標と
するものであるが、市販の不活性ガス中には微量の酸素
が含まれているので、炉内の不活性ガス雰囲気中に酸素
が混入する。
However, for example, a cylindrical first aluminum material having a circular, rectangular or other shape in cross section, and a second aluminum material having a hole into which the end of the first aluminum material is inserted are used. In the case of brazing while inserted into the hole of the second aluminum material, for example, when manufacturing an automobile intake manifold, an open end of an aluminum cylindrical plenum chamber with one end open and the other end closed; When brazing with an aluminum throttle body mounting body is performed in an inert gas brazing furnace equipped with a conventional inert gas supply device, the following problems occur. In other words, the goal of conventional inert gas supply devices is to reduce the oxygen concentration in the inert gas atmosphere inside the furnace to O, but commercially available inert gases contain trace amounts of oxygen. Oxygen is mixed into the inert gas atmosphere inside the furnace.

そして、その酸素濃度は最大で30ppm(容量基準、
以下同じ)程度となる。ところで、第3図に示すように
、アルミニウム製筒状プレナムチャンバ(20)の開口
端部と、アルミニウム製スロットルボディ取付体(2I
)とのろう付は、スロットルボディ取付体(21)の貫
通孔(22)の一端部に段部(23)を介してこれより
も大径のプレナムチャンバ差込部(24) (差込孔)
を形成しておくとともに、この差込部(24)の開口周
縁部にろう溜め用環状凹所(25)を形成しておき、プ
レナムチャンバ(20)の開口端部を差込部(24)に
差込むとともに、凹所(25)内にリング状ろう材(2
6)を配置して行うが、この場合、炉内の不活性ガス雰
囲気の酸素濃度が30 ppm以下であれば、溶融した
ろう材の流動性が良すぎて、第4図に示すように、プレ
ナムチャンバ(20)の端面と段部(23)との間を通
って貫通孔(22)の内周面まで流れ込んでここで凝固
し、ろう付部位においてろう材が不足してろう付不良を
起こすとともに、貫通孔(22)の内周面において凝固
したろう材(27)により、スロットルボディ取付体(
21)からプレナムチャンバ(20)への流体の流れが
乱れるという問題があった。
And the oxygen concentration is up to 30 ppm (capacity basis,
(same below). By the way, as shown in FIG. 3, the open end of the aluminum cylindrical plenum chamber (20) and the aluminum throttle body mounting body (2I
) is brazed to one end of the through hole (22) of the throttle body mounting body (21) via the step (23) to the plenum chamber insertion portion (24) (insertion hole) with a larger diameter than this. )
At the same time, an annular recess (25) for a wax reservoir is formed at the opening periphery of the insertion part (24), and the opening end of the plenum chamber (20) is inserted into the insertion part (24). At the same time, insert the ring-shaped brazing filler metal (2) into the recess (25).
6), but in this case, if the oxygen concentration in the inert gas atmosphere in the furnace is 30 ppm or less, the fluidity of the molten brazing filler metal is too good, as shown in Figure 4. It flows between the end face of the plenum chamber (20) and the stepped portion (23) to the inner circumferential surface of the through hole (22) and solidifies there, causing insufficient brazing material at the brazing area and causing poor brazing. At the same time, the throttle body mounting body (
21) to the plenum chamber (20) was disturbed.

そこで、炉外の大気中から空気を取り入れて炉内の不活
性ガス雰囲気中の酸素濃度を高めることも考えられたが
、これでは酸素濃度が安定せず、安定したろう付性が得
られないという問題がある。
Therefore, it was considered to increase the oxygen concentration in the inert gas atmosphere inside the furnace by taking in air from the atmosphere outside the furnace, but this would not stabilize the oxygen concentration and stable brazing performance could not be obtained. There is a problem.

この発明の目的は、上記問題を解決した不活性ガスろう
付炉用不活性ガス供給装置を提供することにある。
An object of the present invention is to provide an inert gas supply device for an inert gas brazing furnace that solves the above problems.

課題を解決するための手段 この発明による不活性ガスろう付炉用不活性ガス供給装
置は、導管を介して炉に接続されており、かつ不活性ガ
スが封入されている不活性ガス供給用容器と、該導管の
途中に容器側から設けられている流量調整装置および混
合器と、導管を介して混合器に接続されている酸素供給
装置と、該導管の途中に設けられている流量調整装置と
よりなるものである。
Means for Solving the Problems An inert gas supply device for an inert gas brazing furnace according to the present invention includes an inert gas supply container that is connected to the furnace via a conduit and is filled with an inert gas. , a flow rate adjustment device and a mixer provided in the middle of the conduit from the container side, an oxygen supply device connected to the mixer via the conduit, and a flow rate adjustment device provided in the middle of the conduit. It depends on this.

上記において、酸素供給装置としては、たとえば純酸素
が封入された容器、大気を吸込んでこれを乾燥させるこ
とによりドライエアを生成する乾燥装置などが用いられ
る。
In the above, as the oxygen supply device, for example, a container filled with pure oxygen, a drying device that generates dry air by sucking atmospheric air and drying it, etc. are used.

作   用 このような装置において、不活性ガス供給用容器から送
り出された不活性ガスは、流m調整装置により、流量が
調整されて混合器に送られる。一方、酸素供給装置によ
り供給された酸素は、流jl調整装置により、流量が調
整されて混合器に送られる。そして、混合器において、
不活性ガスと酸素とが混合されて、不活性ガス中の酸素
濃度が所望濃度とされ、この酸素混合不活性ガスが炉に
送り込まれる。
Function: In such a device, the inert gas sent out from the inert gas supply container is sent to the mixer after its flow rate is adjusted by the flow adjustment device. On the other hand, the flow rate of the oxygen supplied by the oxygen supply device is adjusted by the flow jl adjustment device, and the oxygen is sent to the mixer. And in the mixer,
The inert gas and oxygen are mixed to bring the oxygen concentration in the inert gas to a desired concentration, and the oxygen-mixed inert gas is fed into the furnace.

実  施  例 以下、この発明の実施例を、図面を参照して説明する。Example Embodiments of the present invention will be described below with reference to the drawings.

第1図はこの発明による装置の実施例を示す。FIG. 1 shows an embodiment of the device according to the invention.

第1図において、不活性ガスろう付炉用不活性ガス供給
装置は、導管(4)を介して不活性ガスろう付炉(1)
に接続され、かつ不活性ガスが封入されている不活性ガ
ス供給用容器(2)を備えている。導管(4)の途中に
は、容器(2)側から圧力調整器(5)、調速機(6)
、混合器(7)、および流量計(8)が設けられており
、圧力調整器(5)および調速機(6)により流量調整
装置が構成されている。混合器(7)には、大気を吸入
してこれを乾燥させることによりドライエアを生成する
乾燥機(3)(酸素供給装置)が、導管(9)を介して
接続されている。乾燥機(3)と混合器(7)とを接続
する導管(9)の途中には、乾燥機(3)側からフィル
タ(10)、圧力調整器(1■)、および定量ポンプ(
12)が設けられている。
In FIG. 1, an inert gas supply device for an inert gas brazing furnace is connected to an inert gas brazing furnace (1) via a conduit (4).
The inert gas supply container (2) is connected to the inert gas supply container (2) and is filled with an inert gas. In the middle of the conduit (4), a pressure regulator (5) and a speed governor (6) are installed from the container (2) side.
, a mixer (7), and a flow meter (8), and a pressure regulator (5) and a speed governor (6) constitute a flow rate regulating device. A dryer (3) (oxygen supply device) that generates dry air by sucking atmospheric air and drying it is connected to the mixer (7) via a conduit (9). In the middle of the conduit (9) connecting the dryer (3) and mixer (7), a filter (10), a pressure regulator (1), and a metering pump (
12) is provided.

このような装置において、不活性ガス供給用容器(2)
から送り出された不活性ガスは、圧力調整器(5)によ
りその圧力が容器(2)内圧力よりも低下させられると
ともに、調速機(6)によりその流速が調整され、これ
により流量が調整されて混合器(7)に送られる。一方
、定量ポンプ(12)により所定量の大気が乾燥機(3
)に吸入されてドライエアが生成され、さらにこのドラ
イエアが定量ポンプ(12)により吸引されてフィルタ
(lO)により濾過された後、圧力調整器(11)によ
りその圧力が容器(3)内圧力よりも低下させられ、所
定量が混合器(7)に送られる。そして、混合器(7)
において、不活性ガスとドライエアとが混合されて、不
活性ガス中の酸素濃度が所望濃度とされ、この酸素混合
不活性ガスが炉(1)に送り込まれる。そして、炉(1
)内においてろう付される。
In such a device, an inert gas supply container (2)
The pressure of the inert gas sent out from the container (2) is lowered by the pressure regulator (5) than the pressure inside the container (2), and the flow rate is adjusted by the speed governor (6), thereby adjusting the flow rate. and sent to the mixer (7). Meanwhile, a predetermined amount of air is pumped into the dryer (3) by the metering pump (12).
) to generate dry air, this dry air is further sucked by a metering pump (12) and filtered by a filter (1O), and then a pressure regulator (11) lowers the pressure from the internal pressure of the container (3). is also lowered and a predetermined amount is sent to the mixer (7). And mixer (7)
In the inert gas and dry air are mixed, the oxygen concentration in the inert gas is adjusted to a desired concentration, and this oxygen-mixed inert gas is fed into the furnace (1). And the furnace (1
) is brazed within.

炉(1)内でのろう付のさいの不活性ガス雰囲気中の酸
素濃度は300〜30000 ppmにすることが好ま
しい。その理由は、次の通りである。すなわち、下限値
未満であるとろう流れ性が良すぎてろう付部位において
ろう材が不足してろう付不良を起こすとともに、ろう付
部位以外の箇所に余分なフィレットが形成され、上限値
を越えると十分なろう流れ性が得られず、ろう付部位に
おいてろう材が不足してろう付不良を起こすからである
。不活性ガス雰囲気中の酸素濃度は、特に1000〜1
0000 ppmの範囲内にあることが好ましい。
The oxygen concentration in the inert gas atmosphere during brazing in the furnace (1) is preferably 300 to 30,000 ppm. The reason is as follows. In other words, if it is less than the lower limit, the flowability of the solder is too good and there is not enough brazing material in the brazing area, resulting in poor brazing, and extra fillets are formed in areas other than the brazing area, which exceeds the upper limit. This is because sufficient brazing flowability cannot be obtained, resulting in insufficient brazing material at the brazing area, resulting in poor brazing. The oxygen concentration in the inert gas atmosphere is particularly 1000 to 1
It is preferably within the range of 0,000 ppm.

また、炉(1)内でのろう付に使用するろう併用フラッ
クスとしては、塩化物系フラックスを用いることが好ま
しい。その理由は次の通りである。すなわち、ろう併用
フラックスとしては、通常塩化物系フラックスおよび弗
化物系フラックスが用いられるが、不活性ガス中の酸素
濃度が300〜30000 ppmのように高くなると
、弗化物系フラックスでは溶融したろう材の流動性が悪
くなり、ろう付不良を起こすおそれがあるのに対し、塩
化物系フラックスでは優れたろう流れ性を得られるから
である。しかも、自動車用吸気マニホルドのプレナムチ
ャンバは、たとえばJISA6063などのJISA6
000系合金で形成され、スロットルボディ取付体は、
たとえばJISAC4Cや、Mg0.50〜0゜65v
t%、Cry、40〜0.6vt%、およびZn5.0
〜6.5wt%を含み、残部AI!および不可避不純物
からなる鋳物合金で形成されるが、このようなAR−M
g系合金の場合、弗化物系フラックスを用いてろう付す
るとろう付性が低下するので、これらの合金のろう付に
は弗化物系フラックスは適さないからである。
Further, as the flux used for brazing in the furnace (1), it is preferable to use a chloride-based flux. The reason is as follows. In other words, chloride-based flux and fluoride-based flux are usually used as fluxes used with brazing, but when the oxygen concentration in the inert gas becomes high, such as 300 to 30,000 ppm, fluoride-based flux may cause the melted brazing material to deteriorate. This is because chloride-based flux can provide excellent brazing flowability, whereas chloride-based fluxes have poor fluidity and may cause poor brazing. Moreover, the plenum chamber of an automobile intake manifold is JISA6063, for example.
The throttle body mounting body is made of 000 series alloy.
For example, JISAC4C, Mg0.50~0°65v
t%, Cry, 40-0.6vt%, and Zn5.0
Contains ~6.5wt%, the remainder is AI! AR-M is formed of a cast alloy consisting of
This is because in the case of g-based alloys, fluoride-based fluxes are not suitable for brazing these alloys, since brazing properties decrease when fluoride-based fluxes are used for brazing.

次に、この発明の装置を用いて行った具体的な実験例に
ついて説明する。
Next, specific experimental examples conducted using the apparatus of the present invention will be described.

JISA6063合金で自動車用吸気マニホルドのプレ
ナムチャンバ(20)をつくるとともに、MgO,55
vt%、CrO,50vt%、およびZn5.8vt%
を含み、残部Alおよび不可避不純物からなる鋳物合金
でスロットルボディ取付体(2■)をつくった。ついで
、プレナムチャンバ(20)の開口端部をスロットルボ
ディ取付体(21)の差込部(20に差込むとともに、
凹所(25)内にJISA4045からなるリング状ろ
う材(2B)を配置した。その後、これらを炉(1)内
に入れ、炉(1)中に、不活性ガスによって酸素濃度が
調整された種々の酸素混合窒素ガスを50m’/hr供
給しつつ、600℃で3分間加熱し、ブレナムチャンバ
(20)とスロットルボディ取付体(21)とをろう付
した。フラックスとしては、Ba1z、KCj7.Na
Cjlなどを主成分トスる塩化物系フラックスを使用し
た。そして、各酸素素混合窒素ガスを用いた場合のろう
付性を調べた。その結果を下表に示す。
The plenum chamber (20) of the automobile intake manifold is made of JISA6063 alloy, and MgO, 55
vt%, CrO, 50vt%, and Zn5.8vt%
A throttle body mounting body (2) was made from a cast alloy containing aluminum with the remainder being aluminum and unavoidable impurities. Next, insert the open end of the plenum chamber (20) into the insertion part (20) of the throttle body mounting body (21),
A ring-shaped brazing material (2B) made of JISA4045 was placed in the recess (25). Thereafter, these were placed in a furnace (1) and heated at 600°C for 3 minutes while supplying various oxygen-mixed nitrogen gases whose oxygen concentration was adjusted with an inert gas at 50 m'/hr into the furnace (1). Then, the Blenheim chamber (20) and the throttle body mounting body (21) were brazed. As for the flux, Ba1z, KCj7. Na
A chloride-based flux containing Cjl as a main component was used. Then, the brazing properties when using each oxygen/nitrogen mixed gas were investigated. The results are shown in the table below.

上表のろう付性の欄において、Xは第4図に示す状態で
あって、ろう付不良が起きているとともに、スロットル
ボディ取付体(21)からプレナムチャンバ(20)内
に流入する空気の流れが乱れる。××は第5図に示す状
態であって、凝固したろう材(27)は、凹所(25)
内および差込部(24)の開口寄りの部分とプレナムチ
ャンバ(20)の周面との間にしか存在せず、ろう付不
良が起きている。Oは第2図に示す状態であって、凝固
したろう材(27)は、凹所(25)内、差込部(24
)の全長にわたる部分とプレナムチャンバ(20)の周
面との間、およびプレナムチャンバ(20)の端面と段
部(23)との間合てに存在しているので、強固にろう
付されるとともに、スロットルボディ取付体(21)か
らプレナムチャンバ(20)内に流入する流体の流れが
乱れることはない。
In the brazeability column of the table above, X is the state shown in Figure 4, where poor brazing has occurred and the air flowing into the plenum chamber (20) from the throttle body mounting body (21) is The flow is disrupted. XX is the state shown in FIG. 5, and the solidified brazing filler metal (27) is in the recess (25)
It exists only between the inside and the part of the insertion part (24) near the opening and the circumferential surface of the plenum chamber (20), resulting in poor brazing. O is the state shown in FIG. 2, and the solidified brazing material (27) is inside the recess (25) and the insertion part (24
) and the peripheral surface of the plenum chamber (20), and between the end surface of the plenum chamber (20) and the step (23), so that it is firmly brazed. At the same time, the flow of fluid flowing into the plenum chamber (20) from the throttle body attachment (21) is not disturbed.

発明の効果 この発明の不活性ガスろう付炉用不活性ガス供給装置に
よれば、上述のように、不活性ガスろう付炉に、所望の
酸素濃度の酸素混合不活性ガスを供給することができる
。したがって、この不活性ガス供給装置によって酸素混
合不活性ガスが供給された炉内において、第1アルミニ
ウム材と、第1アルミニウム材の端部を差込む孔を有す
る第2アルミニウム材とを、第1フルミニウム材の端部
を第2アルミニウム材の孔に差込んだ状態でろう付した
場合、ろう付部位に適量のろう材が溜まってろう付不良
を起こすことなく強固にろう付される。しかも、ろう付
部位以外の箇所に余分なフィレットが形成されるのが防
止され、たとえば自動車用吸気マニホルドのプレナムチ
ャンバとスロットルボディ取付体とのろう付に適用した
場合に、流体の流れを乱すことがなくなる。
Effects of the Invention According to the inert gas supply device for an inert gas brazing furnace of the present invention, as described above, it is possible to supply an oxygen-mixed inert gas having a desired oxygen concentration to an inert gas brazing furnace. can. Therefore, in the furnace to which the oxygen-mixed inert gas is supplied by this inert gas supply device, the first aluminum material and the second aluminum material having a hole into which the end of the first aluminum material is inserted are connected to the first aluminum material. When the end of the fulminium material is inserted into the hole of the second aluminum material and brazed, an appropriate amount of brazing material accumulates in the brazing area, and the material is firmly brazed without causing any brazing defects. Moreover, it prevents the formation of excess fillets in areas other than the brazed area, which may disturb fluid flow when applied to brazing the plenum chamber of an automobile intake manifold and the throttle body mounting body, for example. disappears.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はこの発明による装置の実施例を示す概略図、第
2図はプレナムチャンバとスロットルボディ取付体との
良好なろう付状態を示す部分拡大縦断面図、第3図はプ
レナムチャンバとスロットルボディ取付体とのろう付前
の状態を示す縦断面図、第4図は酸素混合不活性ガス中
の酸素濃度が低い場合のろう付後の状態を示す部分拡大
縦断面図、第5図は同じく酸素濃度が高い場合のろう付
後の状態を示す部分拡大縦断面図である。 (1)・・・不活性ガスろう付炉、(2)・・・不活性
ガス供給用容器、(3)・・・酸素供給装置、(4)・
・・導管、(5)・・・圧力調整器、(6)・・・調速
機、(7)・・・混合器、(9)・・・導管、(11)
・・・圧力調整器、(12)・・・定量ポンプ。 以  上 第4図 第5図
Fig. 1 is a schematic diagram showing an embodiment of the device according to the present invention, Fig. 2 is a partially enlarged vertical sectional view showing a good brazed state between the plenum chamber and the throttle body mounting body, and Fig. 3 is a schematic diagram showing the plenum chamber and the throttle body mounting body. Fig. 4 is a longitudinal sectional view showing the state before brazing with the body attachment body, Fig. 4 is a partially enlarged longitudinal sectional view showing the state after brazing when the oxygen concentration in the oxygen mixed inert gas is low, and Fig. 5 is a longitudinal sectional view showing the state before brazing with the body attachment body. It is a partially enlarged vertical cross-sectional view showing the state after brazing when the oxygen concentration is similarly high. (1)...Inert gas brazing furnace, (2)...Inert gas supply container, (3)...Oxygen supply device, (4)...
... Conduit, (5) ... Pressure regulator, (6) ... Speed governor, (7) ... Mixer, (9) ... Conduit, (11)
...Pressure regulator, (12) ...metering pump. Above Figure 4 Figure 5

Claims (1)

【特許請求の範囲】[Claims]  導管を介して炉に接続されており、かつ不活性ガスが
封入されている不活性ガス供給用容器と、該導管の途中
に容器側から設けられている流量調整装置および混合器
と、導管を介して混合器に接続されている酸素供給装置
と、該導管の途中に設けられている流量調整装置とより
なる不活性ガスろう付炉用不活性ガス供給装置。
An inert gas supply container that is connected to the furnace via a conduit and is filled with inert gas, a flow rate adjustment device and a mixer that are installed from the container side in the middle of the conduit, and the conduit. An inert gas supply device for an inert gas brazing furnace, comprising an oxygen supply device connected to a mixer through a conduit, and a flow rate adjustment device provided in the middle of the conduit.
JP16375090A 1990-06-21 1990-06-21 Inert gas supplying device for inert gas brazing furnace Pending JPH0455058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16375090A JPH0455058A (en) 1990-06-21 1990-06-21 Inert gas supplying device for inert gas brazing furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16375090A JPH0455058A (en) 1990-06-21 1990-06-21 Inert gas supplying device for inert gas brazing furnace

Publications (1)

Publication Number Publication Date
JPH0455058A true JPH0455058A (en) 1992-02-21

Family

ID=15779986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16375090A Pending JPH0455058A (en) 1990-06-21 1990-06-21 Inert gas supplying device for inert gas brazing furnace

Country Status (1)

Country Link
JP (1) JPH0455058A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007136549A (en) * 2005-10-19 2007-06-07 Tamura Seisakusho Co Ltd Atmosphere forming method and apparatus in soldering equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56144860A (en) * 1980-04-14 1981-11-11 Fuji Electric Co Ltd Conveyor furnace

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56144860A (en) * 1980-04-14 1981-11-11 Fuji Electric Co Ltd Conveyor furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007136549A (en) * 2005-10-19 2007-06-07 Tamura Seisakusho Co Ltd Atmosphere forming method and apparatus in soldering equipment

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