JPH0139877B2 - - Google Patents
Info
- Publication number
- JPH0139877B2 JPH0139877B2 JP16899982A JP16899982A JPH0139877B2 JP H0139877 B2 JPH0139877 B2 JP H0139877B2 JP 16899982 A JP16899982 A JP 16899982A JP 16899982 A JP16899982 A JP 16899982A JP H0139877 B2 JPH0139877 B2 JP H0139877B2
- Authority
- JP
- Japan
- Prior art keywords
- sealing plate
- vacuum
- exhaust hole
- getter
- elastic support
- 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
- 238000007789 sealing Methods 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 34
- 238000010438 heat treatment Methods 0.000 claims description 26
- 229910052751 metal Inorganic materials 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 17
- 229910000679 solder Inorganic materials 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 7
- 238000005476 soldering Methods 0.000 claims description 7
- 238000005219 brazing Methods 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 230000004913 activation Effects 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J41/00—Thermally-insulated vessels, e.g. flasks, jugs, jars
- A47J41/02—Vacuum-jacket vessels, e.g. vacuum bottles
- A47J41/022—Constructional details of the elements forming vacuum space
- A47J41/028—Constructional details of the elements forming vacuum space made of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/14—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
- B23K1/18—Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams circumferential seams, e.g. of shells
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Thermally Insulated Containers For Foods (AREA)
Description
【発明の詳細な説明】
本発明は金属製真空断熱容器の製造方法の改良
に係り、真空排気孔の封止と真空劣化防止用ゲツ
ターの活性化を同時に行なう様にした金属製真空
断熱容器の製法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the manufacturing method of a metal vacuum insulated container, and relates to a method for manufacturing a metal vacuum insulated container in which the vacuum exhaust hole is sealed and the getter for preventing vacuum deterioration is activated at the same time. Regarding the manufacturing method.
一般に金属製真空断熱容器に於いては、真空加
熱炉内で容器本体を加熱しつつ内・外筒間の断熱
空間を一定の真空度にまで排気したあと、外筒に
穿設した真空排気孔へ封板を鑞付けすることによ
り真空封じを行なつている。又、真空封じ後の真
空劣化を防止するために、断熱空間内に予めゲツ
ター材を配設しておき、真空封じ後ゲツターを加
熱活性化して放出ガス分子をこれに吸着させるよ
うにしている。 Generally, in a metal vacuum insulated container, the container body is heated in a vacuum heating furnace and the insulated space between the inner and outer cylinders is evacuated to a certain degree of vacuum, and then a vacuum exhaust hole is drilled in the outer cylinder. Vacuum sealing is achieved by brazing a sealing plate to the housing. Further, in order to prevent vacuum deterioration after vacuum sealing, a getter material is placed in advance in the heat insulating space, and after vacuum sealing, the getter material is heated and activated so that the released gas molecules are adsorbed thereto.
第１図及び第２図は、従前のこの種金属製真空
断熱容器に於ける真空封じとゲツター活性化方法
の一例を示すものであり。第１図に於いては、ゲ
ツター１の取付タグ１′を外筒２の所定箇所へ熔
接したあと内筒３と外筒２を組み合せ、断熱空間
Ｇの排気の完予後に排気孔４を封板７等によつて
封止し、更に前記取タグ１′の熔接部５を外筒２
の外側から適宜の手段によつて600℃〜800℃に加
熱することにより、その活性化を図つている。 FIGS. 1 and 2 show an example of a conventional vacuum sealing and getter activation method for this type of metal vacuum insulated container. In Fig. 1, after welding the mounting tag 1' of the getter 1 to a predetermined location of the outer cylinder 2, the inner cylinder 3 and the outer cylinder 2 are assembled, and the exhaust hole 4 is sealed to completely exhaust the heat insulating space G. The welded part 5 of the tag 1' is sealed with a plate 7 etc., and the welded part 5 of the tag 1' is sealed with the outer cylinder 2.
Activation is achieved by heating from the outside to 600°C to 800°C by appropriate means.
又、第２図に於いては、予かじめゲツター１を
取付けた容器本体Ａを真空加熱炉Ｈ内で加熱しつ
つ断熱空気Ｇの排気を行ない、排気の完了後炉温
度を上げて容器本体Ａの温度を780℃〜1050℃に
上昇させ、ゲツター１の活性化を行なうと共に排
気孔４の周囲に配設した鑞接材６を熔融し、封板
７を外筒２に鑞付けする様にしている。 In addition, in Fig. 2, the container body A to which the getter 1 has been attached in advance is heated in the vacuum heating furnace H while the insulating air G is exhausted, and after the exhaust is completed, the furnace temperature is raised and the container body is heated. The temperature of A is raised to 780°C to 1050°C to activate the getter 1, melt the solder material 6 disposed around the exhaust hole 4, and braze the sealing plate 7 to the outer cylinder 2. I have to.
然し乍ら、前記第１図の方法にあつては、ゲツ
ター活性化の為の加熱工程を別途に必要とするた
め、断熱容器の製造工程が複雑化して製造コスト
の低減が因難という問題がある。又、ダク１′の
取付部のみを局部加熱するため、外筒２に熱歪み
を生ずる等の問題もある。 However, the method shown in FIG. 1 requires a separate heating step to activate the getter, which complicates the manufacturing process of the heat-insulating container, making it difficult to reduce manufacturing costs. Furthermore, since only the mounting portion of the duct 1' is locally heated, there are problems such as thermal distortion occurring in the outer cylinder 2.
一方、後者の方法にあつても、炉内温度を上昇
して組立体Ａ全体を加温するため、炉の温度制御
に徴妙な技術を要するうえに熱エネルギーの消費
も大きく、製造コストに当然影響を蒙る。又、炉
の熱容量が大きいため、鑞接材６の熔融後も容器
本体Ａが一定時間高温状態のままとなり、その結
果鑞接材６が断熱空間Ｇ内へ流れ込んで封板７の
鑞付けが不完全になり易い。更に、内・外筒の何
れかに輻射防止用の銀メツキ皮模等を形成させた
場合には、全体の加熱によつて銀メツキ皮模が損
傷を受け、保温性能の低下を招き易いという難点
があつた。 On the other hand, even with the latter method, the temperature inside the furnace is raised to heat the entire assembly A, which requires sophisticated technology to control the furnace temperature and consumes a large amount of thermal energy, which increases manufacturing costs. Of course it will be affected. Furthermore, since the heat capacity of the furnace is large, the container body A remains at a high temperature for a certain period of time even after the solder material 6 is melted, and as a result, the solder material 6 flows into the heat insulating space G and the soldering of the sealing plate 7 is interrupted. tends to be incomplete. Furthermore, if a silver plating skin pattern is formed on either the inner or outer cylinder to prevent radiation, the silver plating skin pattern is likely to be damaged by the heating of the entire product, resulting in a decrease in heat retention performance. There was a problem.
本発明は、従前の金属製断熱容器の製法に於け
る上述の如き問題の解決を課題とするものであ
り、真空排気孔の封止とゲツター材の活性化を同
時に行なうことにより、製造原価の大幅引下げや
省エネルギー、排気孔からの真空漏れや輻射防止
用銀メツキ皮模の損傷の防止等を可能とした金属
製真空断熱容器の製造方法を提供するものであ
る。 The present invention aims to solve the above-mentioned problems in the conventional manufacturing method of metal heat insulating containers, and by simultaneously sealing the vacuum exhaust hole and activating the getter material, the manufacturing cost can be reduced. The purpose of the present invention is to provide a method for manufacturing a metal vacuum insulated container that enables a large reduction in energy consumption, energy saving, and prevention of vacuum leakage from the exhaust hole and damage to the silver plating skin for radiation prevention.
本発明は、内筒と外筒を組合せて形成した容器
本体Ａの真空排気孔の周囲に鑞接材を載置すると
共に、内側面に弾性支持材とゲツターを固着した
封板を排気孔の上方に配設して該封板を弾性支持
部材により排気通路を確保して保持し、一定時間
加熱並びに断熱空間Ｇの排気をしたあと、真空製
置内で高周波誘導加熱により封板を排気孔側へ押
圧しつつ前記鑞接材を熔融させ、封板の鑞付けと
ゲツターの加熱活性化を同時に行なうことを基本
構成とするものであり、当該構成とすることによ
り製造コストの引下げや省エネルギーが図れるう
え、断熱効果のより一層の向上が可能となる。 In the present invention, a soldering material is placed around the vacuum exhaust hole of a container body A formed by combining an inner cylinder and an outer cylinder, and a sealing plate having an elastic support material and a getter fixed to the inner surface is attached to the exhaust hole. The sealing plate is placed above and held by an elastic support member to ensure an exhaust passage, and after heating for a certain period of time and exhausting the heat insulating space G, the sealing plate is closed to the exhaust hole by high-frequency induction heating in a vacuum machine. The basic structure is to melt the solder material while pressing it to the side, and simultaneously braze the sealing plate and activate the getter by heating.This structure reduces manufacturing costs and saves energy. In addition, it is possible to further improve the heat insulation effect.
以下、第３図乃至第６図に示す本発明の各実施
例に基づいて、その詳細を説明する。 Hereinafter, the details will be explained based on each embodiment of the present invention shown in FIGS. 3 to 6.
第３図は、本発明で使用する封板７の斜面図で
あり、第４図は封板７の鑞付け前の状態を示す金
属製真空断熱容器の縦断面図、第５図は封板７の
鑞付け後の状態を示す縦断面図である。 FIG. 3 is a perspective view of the sealing plate 7 used in the present invention, FIG. 4 is a longitudinal cross-sectional view of the metal vacuum insulated container showing the state of the sealing plate 7 before brazing, and FIG. 5 is a perspective view of the sealing plate 7. 7 is a longitudinal cross-sectional view showing the state after brazing of No. 7. FIG.
外筒２と内筒３は夫々厚さ0.3〜0.4mmのステン
レス鋼板によつて形成したものであり、両者のネ
ツクチユーブ先端Ｂを熔接することにより、容器
本体Ａを構成させている。又、外筒２の底板２ａ
には直径20〜30mmφの真空排気孔４を穿設し、底
板２ａには鑞接材６を載置するための段部２ｂ
と、封板７を受け止めるガイド耳片２ｃとを設け
ている。 The outer tube 2 and the inner tube 3 are each made of a stainless steel plate having a thickness of 0.3 to 0.4 mm, and the container body A is constructed by welding the ends B of the net tubes. Also, the bottom plate 2a of the outer cylinder 2
A vacuum exhaust hole 4 with a diameter of 20 to 30 mmφ is bored in the bottom plate 2a, and a step part 2b for placing the solder material 6 is provided in the bottom plate 2a.
and a guide lug 2c for receiving the sealing plate 7.
封板７は第３図に示す如く、厚さ0.3〜0.4mmの
ステンレレス鋼板を用いて浅皿形に形成したもの
であり、排気孔４への挿着時には、その外周壁７
ａが前記排気孔４のガイド耳片２ｃに、また外周
壁の上端部７ｂが段部２ｂに夫々接当する。 As shown in FIG. 3, the sealing plate 7 is formed into a shallow dish shape using a stainless steel plate with a thickness of 0.3 to 0.4 mm, and when inserted into the exhaust hole 4, the outer peripheral wall 7
a comes into contact with the guide lug 2c of the exhaust hole 4, and the upper end portion 7b of the outer peripheral wall contacts the step portion 2b, respectively.
当該封板７の内側面には、封板７を支持するた
めの弾性支持材８とゲツター１とをスポツト熔接
等により固着している。即ち、ゲツター１は金属
製円板１ｂの外周緑にジリコニウム、バナジウ
ム、鉄等の合金より成るゲツター材１ａを固着し
て形成させたものであり、また弾性支持材８は、
前記金属製円板１ｂの外周に２〜３本の支持脚８
ａを突設して形成したものである。尚、本実施例
では一つの金属製円板１ｂにゲツター材１ａと支
持脚８ａの両方を固着しているが、ゲツター材１
ａと支持脚８ａを夫々別の円板に設け、２枚の円
板を重ねて封板７にスポツト付けしてもよく、又
支持脚８ａを封板７へ直接固着するようにしても
よい。 An elastic support member 8 for supporting the sealing plate 7 and a getter 1 are fixed to the inner surface of the sealing plate 7 by spot welding or the like. That is, the getter 1 is formed by fixing a getter material 1a made of an alloy of zirconium, vanadium, iron, etc. to the outer periphery of a metal disc 1b, and the elastic support material 8 is
Two to three support legs 8 are provided on the outer periphery of the metal disc 1b.
It is formed by protruding a. In this embodiment, both the getter material 1a and the support legs 8a are fixed to one metal disc 1b, but the getter material 1
The supporting leg 8a and the supporting leg 8a may be provided on separate discs, and the two discs may be overlapped and attached to the sealing plate 7 in spots, or the supporting leg 8a may be directly fixed to the sealing plate 7. .
鑞接材６としては、所謂銀鑞が使用されてお
り、本実施例に於いては銀71〜73％、銅27〜29％
の成分を有し、鑞付温度が900℃の銀鑞材を使用
した。又、当該鑞接材６は、真空排気孔４の底板
段部２ｂ上に載置できるようリング状に成形した
ものである。 As the solder material 6, so-called silver solder is used, and in this example, it is made of 71 to 73% silver and 27 to 29% copper.
A silver brazing material with the following components and a brazing temperature of 900°C was used. Further, the solder material 6 is formed into a ring shape so that it can be placed on the bottom plate stepped portion 2b of the vacuum exhaust hole 4.
第６図は本発明に於いて使用する封板の他の実
施例を示すものであり、第３図に於ける支持脚形
の弾性支持材８に代えて、コイルスプリング状の
弾性支持材８を使用したものである。即ち、封板
７の内側面にゲツター１を固着すると共に、コイ
ルスプリングの細径側先端をこれに固着したもの
であり、太径側先端が封板７の挿着時に真空排気
孔４のガイド耳片２ｃに係合するよう構成した。 FIG. 6 shows another embodiment of the sealing plate used in the present invention, in which a coil spring-shaped elastic support member 8 is used instead of the support leg-shaped elastic support member 8 in FIG. This is what was used. That is, the getter 1 is fixed to the inner surface of the sealing plate 7, and the tip of the small diameter side of the coil spring is fixed to this, and the tip of the large diameter side serves as a guide for the vacuum exhaust hole 4 when the sealing plate 7 is inserted. It is configured to engage with the ear piece 2c.
次に、本発明による真空排気孔の真空封じ法に
ついて説明する。 Next, a method of vacuum sealing the vacuum exhaust hole according to the present invention will be explained.
先ず第４図に示す如く、容器本体Ａの外筒底板
２ａに穿設した真空排気孔４を上側にし、該排気
孔４の段部２ｂにリング状鑞接材６を配設する。
次に封板７を上方より挿着し、その内側面に取付
けた弾性支持材８の支持脚８ａを排気孔４のガイ
ド耳片２ｃへ接当させる。これにより、封板７は
排気孔４上に安定状態で保持されると共に、支持
脚８ａによつて排気通路９が確保される。 First, as shown in FIG. 4, the vacuum exhaust hole 4 formed in the outer cylinder bottom plate 2a of the container body A is placed on the upper side, and the ring-shaped solder material 6 is placed in the stepped portion 2b of the exhaust hole 4.
Next, the sealing plate 7 is inserted from above, and the support legs 8a of the elastic support member 8 attached to the inner surface thereof are brought into contact with the guide tabs 2c of the exhaust hole 4. As a result, the sealing plate 7 is stably held above the exhaust hole 4, and the exhaust passage 9 is secured by the support legs 8a.
封板７と鑞接材６を配設した容器本体Ａは、引
き続き真空加熱炉Ｈ内へ導入され、真空度10-5〜
10-6torr、温度500℃〜600℃の条件下で約１時間
真空加熱処理される。当該真空加熱処理により、
容器本体Ａの各構成部材から内部ガスが放出され
ると共に、内・外筒間の断熱空間Ｇ内のガスも前
記排気通路９を通して外部へ引き出され、空間Ｇ
内が炉内真空度と略同じ真空度になる。 The container body A equipped with the sealing plate 7 and the solder material 6 is then introduced into the vacuum heating furnace H, where the degree of vacuum is 10 -5 ~
Vacuum heat treatment is performed at 10 -6 torr and a temperature of 500°C to 600°C for about 1 hour. Through the vacuum heat treatment,
Internal gas is released from each component of the container body A, and the gas in the heat insulating space G between the inner and outer cylinders is also drawn out through the exhaust passage 9, and the space G
The vacuum inside the furnace is approximately the same as the vacuum inside the furnace.
断熱空間Ｇ内の排気が完了すると、封板７を上
方より下方へ押し付けつつ、排気孔４の周囲に位
置せしめた高周波誘導加熱装置（図示省略）の加
熱コイル10に通電し、鑞接材６等を900℃〜950℃
位いに加熱する。鑞接材６が熔融すると、封板７
は第５図の様に排気孔４のガイド耳片２ｃ内へ押
し込まれ、その外周壁先端と底板段部２ｂ間が鑞
付固着されることになる。尚、封板７を下方へ押
し込むことにより、弾性支持材の支持脚８ａは断
熱空間Ｇ内へ突出する。しかし、内筒３側へは接
触しないので断熱上は何等問題がない。 When the evacuation of the heat insulating space G is completed, while pressing the sealing plate 7 downward from above, the heating coil 10 of a high-frequency induction heating device (not shown) located around the exhaust hole 4 is energized, and the solder material 6 is heated. etc.900℃～950℃
Heat to a high temperature. When the solder material 6 melts, the sealing plate 7
is pushed into the guide lug 2c of the exhaust hole 4 as shown in FIG. 5, and the tip of the outer circumferential wall and the bottom plate stepped portion 2b are fixed by brazing. Note that by pushing the sealing plate 7 downward, the support legs 8a of the elastic support material protrude into the heat insulating space G. However, since it does not come into contact with the inner cylinder 3 side, there is no problem in terms of heat insulation.
又、加熱コイル１０へ通電して鑞接材６を加熱
熔融すると、金属板を介しての伝熱やコイル１０
からの誘導電流による熱により、ゲツター材１ａ
も同時に800℃〜900℃程度に加熱されることにな
り、当該加熱によつて所謂活性化した状態とな
る。 Furthermore, when the heating coil 10 is energized to heat and melt the soldering material 6, heat transfer through the metal plate and the coil 10
The getter material 1a is heated by the induced current from the getter material 1a.
is also heated to about 800°C to 900°C at the same time, and this heating brings it into a so-called activated state.
尚、本実施例にあたつては、鑞付け時に封板７
を下方へ押し込む様にしているが、封板７を固定
して組立体Ａを上方へ押し上げてもよく、又、加
熱方法も高周波誘導加熱以外の方法例えばレーザ
ー光線、赤外線加熱法でもよい。 In this embodiment, the sealing plate 7 is
Although the sealing plate 7 is pushed downward, the assembly A may be pushed upward while the sealing plate 7 is fixed. Also, the heating method may be a method other than high frequency induction heating, such as a laser beam or an infrared heating method.
更に、本実施例にあたつては、排気孔４に段部
２ｂとガイド耳片２ｃを設けると共に封板７を皿
形とするようにしているが、真空排気孔４と封板
７の形態はこれに限定されるものではなく、鑞接
材６が載置でき且つ封板７を弾性支持材８を介し
て排気通路９を確保した状態で保持できる形態で
あれば、何如なる形態であつてもよい。 Furthermore, in this embodiment, the exhaust hole 4 is provided with the stepped portion 2b and the guide tab 2c, and the sealing plate 7 is made into a dish shape. is not limited to this, but may be of any form as long as it can place the soldering material 6 and hold the sealing plate 7 with the exhaust passage 9 secured through the elastic support member 8. It's okay.
本発明は上述の通り、真空排気孔４に鑞接材６
と、内側面に弾性支持材８及びゲツター１を固着
した封板７とを夫々配設し、弾性支持材８によつ
て排気通路９を確保すると共に、封板７の鑞付け
とゲツター１の加熱活性化を高周波誘導加熱によ
つて同時に行なう構成としているため、下記の如
く多くの優れた効用を奏することが出来る。 As described above, the present invention provides a soldering material 6 in the vacuum exhaust hole 4.
and a sealing plate 7 with an elastic support member 8 and a getter 1 fixed to the inner surface thereof, and an exhaust passage 9 is secured by the elastic support member 8, and the sealing plate 7 is brazed and the getter 1 is attached to the inner surface of the sealing plate 7. Since the heating activation is performed simultaneously by high-frequency induction heating, many excellent effects can be achieved as described below.
(1) 弾性支持材８により十分な大きさの排気通路
を確保することが出来、封板７の挿着保持によ
り断熱空間Ｇ内の排気が不完全になることは全
くない。(1) A sufficiently large exhaust passage can be secured by the elastic support member 8, and by inserting and holding the sealing plate 7, the exhaust inside the heat insulating space G will never be incomplete.
(2) 封板７の鑞付けとゲツター１の活性化とを同
時に行なうため、製造工程を簡素化することが
でき、製造コストの大幅な削減を図り得る。(2) Since the brazing of the sealing plate 7 and the activation of the getter 1 are performed at the same time, the manufacturing process can be simplified and manufacturing costs can be significantly reduced.
(3) 真空加熱炉内で封板７の鑞付けをするため、
鑞接材６の熔融時に放出されるガスの大部分は
外部へ排出されるうえ、一部断熱空間内へ放出
されるガスも、ゲツター１が同時に活性化され
るため瞬時に吸着されることになり、鑞接材６
からの放出ガスが断熱空間Ｇ内に残ることは無
い。(3) To braze the sealing plate 7 in the vacuum heating furnace,
Most of the gas released when the soldering material 6 is melted is exhausted to the outside, and some of the gas released into the heat insulating space is also instantly absorbed because the getter 1 is activated at the same time. Now, solder joint material 6
No gas released from remains in the heat insulating space G.
(4) 高周波誘導加熱により、鑞接材６とゲツター
材１ａが局部的に加熱されるため、真空加熱炉
全体の温度を上昇させる場合に比較して熱経済
に優ると共に、内筒外表面（又は外筒内表面）
に輻射防止用金属皮膜を形成した場合でも、こ
れが損傷を受ける惧れは全くない。(4) Since the brazing material 6 and the getter material 1a are locally heated by high-frequency induction heating, the thermal economy is superior to that of raising the temperature of the entire vacuum heating furnace, and the outer surface of the inner cylinder ( or outer cylinder inner surface)
Even if a radiation-preventing metal film is formed on the surface, there is no risk that this will be damaged.
本発明は上述の通り優れた実用的効用を有する
ものである。 As mentioned above, the present invention has excellent practical utility.
第１図及び第２図は、従前の金属製真空断熱容
器に於ける真空封じとゲツター活性化法の一例を
示すものである。第３図は本発明で使用する封板
の斜視図である。第４図は封板の鑞付け前の状態
を示す金属製真空断熱容器の縦断面図であり、第
５図は封板鑞付け後の状態を示す縦断面図であ
る。第６図は、封板の他の実施例を示す縦断面図
である。
Ａ……容器本体、Ｈ……真空加熱炉、Ｇ……断
熱空間、１……ゲツター、２……外筒、３……内
筒、４……排気孔、６……鑞接付、７……封板、
８……弾性支持材、９……排気通路、１０……誘
導加熱コイル。
FIGS. 1 and 2 show an example of a vacuum sealing and getter activation method for a conventional metal vacuum insulated container. FIG. 3 is a perspective view of a sealing plate used in the present invention. FIG. 4 is a longitudinal sectional view of the metal vacuum insulated container showing the state before the sealing plate is brazed, and FIG. 5 is a longitudinal sectional view showing the state after the sealing plate is brazed. FIG. 6 is a longitudinal sectional view showing another embodiment of the sealing plate. A... Container body, H... Vacuum heating furnace, G... Heat insulation space, 1... Getter, 2... Outer cylinder, 3... Inner cylinder, 4... Exhaust hole, 6... Brazed joint, 7 ...Sealing plate,
8...Elastic support material, 9...Exhaust passage, 10...Induction heating coil.
Claims (1)
製内筒３とを組合せて容器本体Ａを形成し、前記
真空排気孔４の周囲に鑞接材６を載置すると共
に、内側面に弾性支持部材８とゲツター１を固着
した封板７を排気孔４の上方に配設して該封板７
を弾性支持部材８により排気通路９を確保して保
持し、一定時間加熱並びに断熱空間Ｇの排気をし
たあと、真空装置内で高周波誘導加熱により封板
７を排気孔４側へ押圧しつつ前記鑞接材６を熔融
させ、封板７の鑞付けとゲツター１の加熱活性化
を同時に行なうようにしたことを特徴とする金属
製真空断熱容器の製造方法。1 A container body A is formed by combining a metal outer cylinder 2 with a vacuum exhaust hole 4 and a metal inner cylinder 3, and a solder material 6 is placed around the vacuum exhaust hole 4, and the inner cylinder is A sealing plate 7 having an elastic support member 8 and a getter 1 fixed to its side surface is disposed above the exhaust hole 4.
is held with an exhaust passage 9 secured by the elastic support member 8, heated for a certain period of time, and the heat insulating space G is evacuated.Then, the sealing plate 7 is pressed toward the exhaust hole 4 side by high-frequency induction heating in a vacuum device. A method for manufacturing a metal vacuum insulated container, characterized in that a soldering material 6 is melted, and a sealing plate 7 is brazed and a getter 1 is heated and activated at the same time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16899982A JPS5956970A (en) | 1982-09-27 | 1982-09-27 | Production of vacuum heat insulation vessel made of metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16899982A JPS5956970A (en) | 1982-09-27 | 1982-09-27 | Production of vacuum heat insulation vessel made of metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5956970A JPS5956970A (en) | 1984-04-02 |
| JPH0139877B2 true JPH0139877B2 (en) | 1989-08-23 |
Family
ID=15878470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16899982A Granted JPS5956970A (en) | 1982-09-27 | 1982-09-27 | Production of vacuum heat insulation vessel made of metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5956970A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0637787Y2 (en) * | 1989-04-11 | 1994-10-05 | 日本酸素株式会社 | Electrically heated insulation container |
| US5111049A (en) * | 1990-12-21 | 1992-05-05 | Santa Barbara Research Center | Remote fired RF getter for use in metal infrared detector dewar |
| FR2697074B1 (en) * | 1992-10-21 | 1994-12-23 | Air Liquide | Cryogenic tank. |
| JPH0767793A (en) * | 1993-09-02 | 1995-03-14 | Tadatoshi Yanagida | Metallic vacuum bottle, production method of metallic vacuum bottle, metallic vacuum bottle produced by metallic vacuum bottle production method |
| DE112009002357T5 (en) * | 2008-10-01 | 2012-01-26 | Magna Steyr Fahrzeugtechnik Ag & Co. Kg | low-temperature containers |
| EP2399661B1 (en) * | 2009-03-24 | 2017-01-18 | Panasonic Corporation | Fabrication method for gas-adsorbing device, gas-adsorbing device, and method of using the same |
-
1982
- 1982-09-27 JP JP16899982A patent/JPS5956970A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5956970A (en) | 1984-04-02 |
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