JPS6144072Y2 - - Google Patents
Info
- Publication number
- JPS6144072Y2 JPS6144072Y2 JP1978059816U JP5981678U JPS6144072Y2 JP S6144072 Y2 JPS6144072 Y2 JP S6144072Y2 JP 1978059816 U JP1978059816 U JP 1978059816U JP 5981678 U JP5981678 U JP 5981678U JP S6144072 Y2 JPS6144072 Y2 JP S6144072Y2
- Authority
- JP
- Japan
- Prior art keywords
- solder material
- edge
- sealing
- metal
- tube
- 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
Links
- 229910000679 solder Inorganic materials 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 description 9
- 238000005219 brazing Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009933 burial Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Pipe Accessories (AREA)
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案は、器内の真空引きに用した管端のシー
ル等、金属管端の気密封止装置の改良構造に関す
る。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to an improved structure of an airtight sealing device for the end of a metal tube, such as a seal for the end of a tube used to draw a vacuum inside a vessel.
(ロ) 従来技術
熱の対流を防止するための真空容器、ガスによ
る障害を防止した大型の電子機器等、長い年月に
わたつて器内の真空を保持するためには、容器そ
のものが十分な耐圧気密構造であると同様、完成
された容器中の空気やガスを排除するために使用
した金属管の気密封止も、また、重要な要素であ
る。(b) Prior art Vacuum containers to prevent heat convection, large electronic devices to prevent damage caused by gas, etc. In order to maintain the vacuum inside the device for a long period of time, the container itself is insufficient. As well as pressure-tight construction, the hermetic sealing of the metal tubes used to exclude air and gas in the completed container is also an important factor.
従来、器内の真空引きに使用する金属管は真空
ポンプ側の端部を一対のロール等の加圧型で偏平
に圧縮接合して気密に保持したのち、この圧接部
分を切断して真空ポンプと分断するようにしてあ
る。金属管の管端は金属が圧縮された状態で切断
されるため、このままでも当初は気密度が充分あ
るが、機械的強度や化学変化に対して弱く、長期
の使用の間に封止力が低下する欠点があつた。そ
こで、気密度を強めるために、管端の端縁を鑞材
にて封止することが一般に行なわれている。とこ
ろが、管端の端縁は切断により尖鋭なナイフエツ
ジ状になつているため、鑞材が端縁に付着しにく
い。このため、鑞付けのための加熱時間が長くな
り、過度の加熱により管端の圧接部分を剥離させ
たり、火災によつて圧接部分が化学変化を起こ
し、気密封止力を弱めてしまう欠点があつた。 Conventionally, the end of the metal tube used to evacuate the inside of the vessel is compressed flat with a pair of rolls or other pressurizers to keep it airtight. It is designed to be divided. The end of a metal tube is cut while the metal is compressed, so it is initially airtight enough, but it is weak against mechanical strength and chemical changes, and the sealing force deteriorates over long-term use. There was a drawback that it deteriorated. Therefore, in order to strengthen the airtightness, it is common practice to seal the end edge of the tube with a solder material. However, since the edge of the tube end is cut into a sharp knife edge shape, it is difficult for the solder material to adhere to the edge. As a result, the heating time required for brazing is long, and excessive heating can cause the pressure-welded parts of the pipe ends to peel off, or a fire can cause chemical changes in the pressure-welded parts, weakening the airtight sealing force. It was hot.
一方特開昭48−54587号公報や特開昭52−
130010号公報のように電気抵抗熔接電極によつて
金属管の管端を圧縮し、該電極に通電して封止端
縁を熔着させることも提案されているが、このよ
うな方法は電気抵抗熔接機など大掛かりな設備が
必要になるとともに、鑞材を使用するものに比べ
て封止端の補強がなく、腐蝕や熱歪等によつて次
第に封止力が弱まり、封止の信頼性に欠けるもの
であつた。 On the other hand, JP-A-48-54587 and JP-A-52-
130010, it has also been proposed to compress the end of a metal tube using an electrical resistance welding electrode, and then apply electricity to the electrode to weld the sealing edge. In addition to requiring large-scale equipment such as a resistance welding machine, there is no reinforcement of the sealing edge compared to those that use solder, and the sealing force gradually weakens due to corrosion, thermal distortion, etc., and the reliability of the seal is reduced. It was something that was lacking.
(ハ) 考案の目的
本考案は上述した従来技術の欠点を解消すべく
なされたものであり、金属管の端部を偏平に圧縮
接合するとともに、この圧接部分を切断して形成
された端縁を鑞材にて封止するものに於いて、電
気抵抗熔接機等の大掛かりな設備を必要とせず、
簡単な作業で半永久的な気密封止を、失敗なく、
かつ速やかに行なえるようにした金属管端の気密
封止装置を提供することを目的とする。(c) Purpose of the invention The present invention was made to solve the above-mentioned drawbacks of the prior art. When sealing with solder, large-scale equipment such as an electric resistance welding machine is not required.
Semi-permanent hermetic sealing with simple steps and no mistakes.
It is an object of the present invention to provide a device for hermetically sealing the end of a metal tube, which can be quickly sealed.
(ニ) 考案の構成
本考案では偏平に圧縮接合された管端の外周に
金属リングを嵌めて管端の端縁を内包し鑞材溜り
を形成する。そして、この鑞材溜りには封止端縁
を埋没するように被包した鑞材が充填されている
ことを特徴とするものである。(d) Structure of the invention In the present invention, a metal ring is fitted around the outer periphery of the pipe ends that have been flattened and compression-jointed to enclose the edge of the pipe ends to form a filler reservoir. The solder material reservoir is characterized in that the solder material is filled with the solder material encapsulating the sealing edge.
斯かる構成によれば、金属リングを管端の外周
に嵌合するだけで鑞材溜りが形成され、この鑞材
溜りに溶融させた鑞材を流し込むという簡単な作
業により、管端の端縁が鑞材の中に埋没し、管の
端縁の封止部は、この封止部を中心にして鑞材で
瞬時に被包されることになる。 According to such a configuration, a solder material reservoir is formed simply by fitting the metal ring to the outer periphery of the tube end, and the edge of the tube end can be fixed by the simple operation of pouring molten brazing material into this solder material reservoir. is embedded in the solder material, and the sealing portion at the end of the tube is instantly covered with the solder material around this sealing portion.
(ホ) 実施例
以下に本考案の一実施例を図面に従い説明する
と、１は内部を真空に保つ構造にした気密容器、
２はこの気密容器１内と連通状態で取付けられて
いる気密容器からのガス抜き用金属管、３は真空
ポンプ４と金属管２とを接合する継ぎ手である。(E) Example An example of the present invention will be described below with reference to the drawings. 1 is an airtight container having a structure to maintain a vacuum inside;
Reference numeral 2 denotes a metal pipe for venting gas from the airtight container, which is installed in communication with the inside of the airtight container 1, and 3 is a joint for joining the vacuum pump 4 and the metal tube 2.
而して、真空ポンプ４によつて気密容器１のガ
ス排除が完了した後の封止工程は、まず、気密容
器１と真空ポンプ４とを金属管２を介して接合し
た状態で、ローラー状のカツター５，５′を用
い、金属管２の一端部を圧縮接合させ、且この接
合部分を切断して管端６を形成する。このように
して圧接された管端６は、金属が圧縮されつつ切
断されるために気密度は充分であるが、機械的強
度、化学変化に対して弱い欠点がある。 In the sealing process after gas removal from the airtight container 1 is completed by the vacuum pump 4, first, with the airtight container 1 and the vacuum pump 4 joined via the metal tube 2, a roller-shaped Using the cutters 5 and 5', one end of the metal tube 2 is compressed and joined, and this joined portion is cut to form a tube end 6. The tube end 6 that is pressure-welded in this manner has sufficient airtightness because the metal is cut while being compressed, but it has the disadvantage of being weak in mechanical strength and resistance to chemical changes.
本実施例においては、このような管端６を上方
に向け、端縁７が突出しないようにして扁平の金
属リング８を管端６に嵌合し、次いで、金属リン
グ８と管端６とを、端縁７を鑞材９で被包するよ
うにして一体的に鑞付けしたものである。 In this embodiment, the flat metal ring 8 is fitted onto the tube end 6 with the tube end 6 facing upward so that the edge 7 does not protrude, and then the metal ring 8 and the tube end 6 are connected together. are integrally soldered so that the edge 7 is covered with a solder material 9.
金属管の端縁は、ローラー状のカツターで圧接
されて簡便な気密構造とできるものの、この端縁
の機械的強度、化学的強度は半永久的なものでは
なく、強度を増すために鑞材で補強する従来の試
みも、端縁が尖鋭なために、鑞材で被包するのは
難しく、必然的に鑞付けのための加熱時間が長く
なり、管端の圧接部分が剥離したり、化学変化す
る虞れがあつたが、本実施例に依れば、金属リン
グ８を管端６の外周に嵌合するだけで鑞材溜りが
形成され、この鑞材溜りに溶融させた鑞材９を流
し込むという簡単な作業により、管端６の端縁７
が鑞材溜りに充填された鑞材９の中に埋没するよ
うにできる。この埋没時に、管端６の端縁７は鑞
材と金属との濡れ性により、機械的な圧縮接合部
分の化学的変化や熱歪による隙間の生成など品質
のばらつきを生じることなく鑞材９にて瞬時に被
包され、密封されることになる。このため、尖鋭
な端縁７であつても鑞材による気密封止が失敗な
く、かつ速やかに行なえることになり、鑞付けの
ための加熱時間が極く僅かで良いので、管端６の
圧接部分が過度の加熱によつて剥離する心配もな
い。このように生産性に優れている構造である
上、加工設備も従来の電気抵抗熔接機のような大
掛かりな設備は不要である。又、金属リング８内
の鑞材溜りに充填された鑞材９で管端６の端縁７
を被包するので、品質の均一化が図れ、機械的強
度や化学的強度も十分に得られ、半永久的な封止
も可能となる。 Although the edge of a metal tube can be pressed with a roller-shaped cutter to create a simple airtight structure, the mechanical and chemical strength of this edge is not semi-permanent, and it is necessary to use brazing material to increase the strength. Previous attempts at reinforcing the pipe end have sharp edges that make it difficult to encapsulate them with solder material, resulting in long heating times for brazing, resulting in peeling of the pressure-welded portion of the pipe end, and chemical damage. However, according to this embodiment, a solder material reservoir is formed simply by fitting the metal ring 8 to the outer periphery of the tube end 6, and the molten solder material 9 is placed in this solder material reservoir. The edge 7 of the pipe end 6 is formed by the simple operation of pouring
can be buried in the solder material 9 filled in the solder material reservoir. During this burial, due to the wettability of the solder material and the metal, the edge 7 of the pipe end 6 can be bonded to the solder material 9 without causing quality variations such as chemical changes in mechanically compressed joints or the formation of gaps due to thermal strain. It will be instantly encapsulated and sealed. Therefore, even if the end edge 7 is sharp, hermetic sealing with the solder material can be performed quickly and without failure, and since the heating time for brazing is extremely short, the pipe end 6 can be hermetically sealed without failure. There is no need to worry about the pressure-welded parts peeling off due to excessive heating. In addition to having such a structure with excellent productivity, large-scale processing equipment such as conventional electric resistance welding machines is not required. Also, the edge 7 of the pipe end 6 is filled with the solder material 9 filled in the solder material reservoir in the metal ring 8.
Since it is encapsulated, quality can be made uniform, sufficient mechanical and chemical strength can be obtained, and semi-permanent sealing can be achieved.
(ヘ) 考案の効果
本考案は以上の説明から明らかなように、金属
管の端部を偏平に圧縮接合するとともに、この圧
接部分を切断して形成された端縁を鑞材にて封止
するものに於いて、管端の外周には管端の端縁を
内包して鑞材溜りを形成する金属リングを有し、
この鑞材溜りには封止端縁を埋没するように被包
した鑞材が充填されているものでから次の効果を
奏する。(f) Effects of the invention As is clear from the above explanation, the present invention is a method of joining the ends of metal tubes by flat compression, and sealing the edge formed by cutting this pressure-welded part with a solder material. The tube end has a metal ring on the outer periphery thereof that encloses the edge of the tube end and forms a solder reservoir,
Since this solder material reservoir is filled with solder material encapsulated so as to bury the sealing edge, the following effects are achieved.
(i) 金属リングを管端の外周に嵌合するだけで鑞
材溜りが形成され、この鑞材溜りに溶融させた
鑞材を流し込むという簡単な作業により、管端
の端縁が鑞材の中に埋没するようになる。この
埋没時に管端の端縁は鑞材と金属の濡れ性によ
り、機械的な圧縮接合部分の化学的変化や熱歪
による隙間の生成など、品質のばらつきを生じ
ることなく鑞材にて瞬時に被包され、隙間なく
密封されることになる。このため、従来困難と
された端縁が尖鋭な管端でも失敗なく封止がで
き、速やかに封止加工が行なえるようになり、
また、管端の圧接部分が過度の加熱により剥離
する虞れもない。(i) A solder metal reservoir is formed by simply fitting a metal ring around the outer periphery of the pipe end, and by the simple operation of pouring molten solder material into this solder material reservoir, the edge of the pipe end becomes free of solder material. It becomes buried inside. Due to the wettability of the solder material and metal, the edge of the pipe end is instantly covered with the solder material during this burial, without causing quality variations such as chemical changes in mechanically compressed joints or the formation of gaps due to thermal distortion. It will be encapsulated and sealed without any gaps. Therefore, even tube ends with sharp edges, which were traditionally difficult to seal, can be sealed without failure, and the sealing process can be performed quickly.
Furthermore, there is no risk that the pressure-welded portion of the tube end will peel off due to excessive heating.
(ii) このように生産性に優れている構造である
が、従来の電気抵抗熔接機のような大掛かりな
設備も不要となる。(ii) Although this structure has excellent productivity, it also eliminates the need for large-scale equipment such as conventional electric resistance welding machines.
(iii) 金属リング内の鑞材溜りに充填された鑞材で
管端の端縁を被包するので、品質が均一化さ
れ、機械的強度や化学的強度も充分に得られ、
半永久的な封止も可能となる。(iii) Since the edge of the pipe end is covered with the solder material filled in the solder material reservoir in the metal ring, the quality is uniform and sufficient mechanical and chemical strength is obtained.
Semi-permanent sealing is also possible.
第１図は金属管端の機械的封止を行なう模式
図、第２図は本案の斜視説明図、第３図は同じく
要部断面図である。
２〜金属管、６〜管端、７〜端縁、８〜金属リ
ング、９〜鑞材。
FIG. 1 is a schematic view of mechanically sealing the end of a metal tube, FIG. 2 is a perspective view of the present invention, and FIG. 3 is a sectional view of the main part. 2 - metal tube, 6 - tube end, 7 - edge, 8 - metal ring, 9 - brazing material.
Claims (1)
この圧接部分を切断して形成された端縁を鑞材に
て封止するものに於いて、管端の外周には管端の
端縁を内包して鑞材溜りを形成する金属リングを
有し、この鑞材溜りには封止端縁を埋没するよう
に被包した鑞材が充填されている金属管端の気密
封止装置。 In addition to compressing and joining the ends of metal pipes to make them flat,
In the method of sealing the edge formed by cutting this pressure-welded part with a solder material, the outer periphery of the tube end has a metal ring that encloses the edge of the tube end and forms a solder material reservoir. The solder material reservoir is filled with encapsulated solder material so as to bury the sealing edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978059816U JPS6144072Y2 (en) | 1978-04-28 | 1978-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1978059816U JPS6144072Y2 (en) | 1978-04-28 | 1978-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54161019U JPS54161019U (en) | 1979-11-10 |
| JPS6144072Y2 true JPS6144072Y2 (en) | 1986-12-12 |
Family
ID=28959825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1978059816U Expired JPS6144072Y2 (en) | 1978-04-28 | 1978-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6144072Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0225038Y2 (en) * | 1984-10-11 | 1990-07-10 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52130010A (en) * | 1976-04-23 | 1977-11-01 | Toshiba Corp | Refrigerant enclosing pipe sealing for compressor |
-
1978
- 1978-04-28 JP JP1978059816U patent/JPS6144072Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52130010A (en) * | 1976-04-23 | 1977-11-01 | Toshiba Corp | Refrigerant enclosing pipe sealing for compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54161019U (en) | 1979-11-10 |
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