JPS6373923A - Production of metal vacuum double tank - Google Patents
Production of metal vacuum double tankInfo
- Publication number
- JPS6373923A JPS6373923A JP21851286A JP21851286A JPS6373923A JP S6373923 A JPS6373923 A JP S6373923A JP 21851286 A JP21851286 A JP 21851286A JP 21851286 A JP21851286 A JP 21851286A JP S6373923 A JPS6373923 A JP S6373923A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- vacuum
- metal
- outer tank
- brazing
- 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
- 239000002184 metal Substances 0.000 title claims description 40
- 229910052751 metal Inorganic materials 0.000 title claims description 40
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000005219 brazing Methods 0.000 claims description 36
- 230000002093 peripheral effect Effects 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 description 10
- 238000003466 welding Methods 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009489 vacuum treatment Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Thermally Insulated Containers For Foods (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
７ 〆た ｇ６ し 小 丁１１ １）４＼ 用【
）この発明は、金属製内槽と金属製外Ｈ３との間隙
を真空断熱層とする金属製真空二重槽の製造方法に関す
る。[Detailed description of the invention] 7.
) This invention relates to a method for manufacturing a metal vacuum double tank in which the gap between the metal inner tank and the metal outer H3 is a vacuum heat insulating layer.
「従来の技術」
近年、フードジャー、ランチツヤ−１魔法瓶などの食物
や飲料の保温を目的とした６種の保温容器が考案されて
いる。"Prior Art" In recent years, six types of heat-insulating containers have been devised for keeping food and drinks warm, such as food jars and lunch gloss-1 thermos flasks.
このような保温容器として、例えば第４図に示すような
構造の金属製真空二重槽が知られている。As such a heat-insulating container, for example, a metal vacuum double tank having a structure as shown in FIG. 4 is known.
この真空二重槽１１は、有底円筒状の金属製外槽１２と
、この外槽Ｉ２の内部に挿入された有底円筒状の金属製
内←ｆｆ＋３とが各々の開口部にて接合されて一体にな
ったものであり、これら内外槽間に真空断＃Ａｆｆｉ１
４が形成され八らのである。This vacuum double tank 11 has a bottomed cylindrical metal outer tank 12 and a bottomed cylindrical metal inner ←ff+3 inserted into the outer tank I2, which are joined at their respective openings. There is a vacuum cut #Affi1 between these inner and outer tanks.
4 is formed and there are 8.
ところで、この真空二重＋！ｔｉ１１を製造するには、
゛よず内槽ｔ３を外（・ｊ〜１２内に挿入し、内Ｈ’ｆ
１３の開口周端部１３ａを外ｉ曹１２の開口周端部１
２ａに当接さ仕几状聾て仮固定する。次に、これら周端
部１３ａと周：’、７．ｉ部１２ａ部会２ａＴＧ熔接（
溶接ゴンアーク溶接）またはノーノ、溶接により接合す
るか、あるいは第５図に示すように外槽１２と内槽１３
との間の上記周端部の当接部近傍にろう材１５を配置し
、加熱処理して同当接部をろう付け接合する。その後、
外ｔ！１２に予め形成された排気孔１６より真空排気処
理して上記の外槽１２と内槽１３との間を真空にし、排
気孔１６を真空封止板１７て封止することにより同内外
槽間を真空断熱層１４とする。By the way, this vacuum double +! To manufacture ti11,
゛Insert the yozu inner tank t3 outside (・j~12, and inside H'f
The opening peripheral end 13a of 13 is connected to the opening peripheral end 1 of outer diameter 12.
2a and temporarily fix it in place. Next, these peripheral end portions 13a and the circumference:', 7. i section 12a section 2a TG welding (
The outer tank 12 and the inner tank 13 can be joined by welding (gon-arc welding) or non-welding, or as shown in FIG.
A brazing filler metal 15 is placed near the abutting part of the peripheral end between the two and heat-treated to braze and join the abutting part. after that,
Outside! The space between the outer tank 12 and the inner tank 13 is evacuated by evacuation through the exhaust hole 16 formed in advance in 12, and the exhaust hole 16 is sealed with a vacuum sealing plate 17 to close the gap between the same inner and outer tanks. is the vacuum heat insulating layer 14.
「発明が解決しようとする問題点」
しかしながら、上記の金属製真空二重槽の製造方法にあ
っては、以下に述べるような不都合がある。"Problems to be Solved by the Invention" However, the above-mentioned method for manufacturing a double vacuum tank made of metal has the following disadvantages.
（１）外槽と内槽との接合をＴＩＧ熔接溶接はシーム溶
接で行なう場合、外槽と内槽とが異種金属からなるとき
には安価で確実な接合ができない。(1) When the outer tank and the inner tank are joined by TIG welding or seam welding, when the outer tank and the inner tank are made of different metals, it is not possible to achieve a cheap and reliable joint.
（２）同じ＜ＴＩＧ熔接溶接なう場合、外槽と内槽との
寸法に高精度が要求されるため、この寸法管理が困難で
ある。(2) When TIG welding is the same, high precision is required in the dimensions of the outer tank and the inner tank, making it difficult to control these dimensions.
（３）ろう付けで行なう場合、仮固定する際の外槽と内
槽との芯出しが困難である。(3) When brazing is used, it is difficult to center the outer tank and the inner tank during temporary fixing.
（４）同じくろう付けて行なう場合、外槽と内ｉｆｆと
に膨張係数の異なる金属を用いたときには、内外槽間の
ろう付け部の寸法管理が困難であり、またろう付け後の
冷却時に収縮率が異なることからろう材の割れや槽の変
形の恐れがある。(4) When brazing is also performed, if metals with different expansion coefficients are used for the outer tank and the inner if, it is difficult to control the dimensions of the brazed part between the inner and outer tanks, and the shrinkage occurs during cooling after brazing. There is a risk of cracking of the brazing filler metal or deformation of the tank due to the difference in rate.
（５）同じくろう付けで行なう場合、仮固定した際に内
外槽間に部分的に間隙が残るため微細粉状のろう材が使
用できず、また仮固定を内外槽の周縁の数箇所で行なっ
たときには、ろう付け後開口部が変形する恐れがある。(5) Similarly, when brazing is used, fine powder brazing filler metal cannot be used because a gap remains partially between the inner and outer tanks when temporary fixing is performed, and temporary fixing is performed at several points around the periphery of the inner and outer tanks. Otherwise, the opening may be deformed after brazing.
また、上記の方法により得られた二重槽にあっては、
（６）開口部の周壁の肉厚が薄いため強度的に十分でな
く、周端面に凹凸があるのでパツキンのソール面として
不向きであり、また組み立て中にこの周端面で怪我をす
る恐れもある。In addition, in the case of the double tank obtained by the above method, (6) the peripheral wall of the opening is thin, so it is not strong enough, and the peripheral end surface has unevenness, so it is not suitable as the sole surface of the packing. Also, there is a risk of injury from this peripheral end surface during assembly.
「問題点を解決するための手段」
そこでこの発明では、内槽および底部に排気孔を設けた
外槽の各々の開口部の周端部を当接させ、次にこれら内
槽および外槽の周端部の少なくとも一方を折り返して巻
き締めし、次いでこれの開口部を下にして内槽と外槽と
の間の上記周端部の当接部近傍にろう材を配置すると共
に、上記外槽の排気孔周辺にろう材を載置し、このろう
材の上に上記排気孔を封止する真空封止板を載置し、そ
の後真空排気処理およびろう付け処理をして上記内槽お
よび外槽の周端部の当接部および真空封止板を接合する
ことにより真空二重槽を製造するようにして上記の問題
点を解決した。"Means for Solving the Problem" Therefore, in the present invention, the circumferential ends of the openings of the inner tank and the outer tank provided with exhaust holes at the bottom are brought into contact with each other, and then the inner tank and the outer tank are brought into contact with each other. At least one of the circumferential edges is folded back and rolled up, and then a brazing material is placed near the abutment area of the circumferential edge between the inner tank and the outer tank with the opening thereof facing down, and the outer A brazing metal is placed around the exhaust hole of the tank, a vacuum sealing plate is placed on top of the brazing metal to seal the exhaust hole, and then a vacuum evacuation process and a brazing process are performed to remove the inner tank and The above-mentioned problems were solved by manufacturing a vacuum double tank by joining the abutment part of the peripheral end of the outer tank and the vacuum sealing plate.
「実施例」
以下図面を参照してこの発明の金属製真空二重槽の製造
方法を詳しく説明する。"Example" The method for manufacturing a metal vacuum double tank of the present invention will be described in detail below with reference to the drawings.
第１図および第２図はこの発明の金属製真空二重槽の製
造方法の一例を説明するためのものである。FIG. 1 and FIG. 2 are for explaining an example of the method for manufacturing a metal vacuum double tank of the present invention.
まず、有底円筒状の炭素鋼製外槽Ｉに有底円筒状のステ
ンレス鋼（ＳＵＳ３０４）製内槽２を挿入し、外槽１０
′）周端部１ａに内槽の周端部２ａを気孔４が形成され
、外槽１の内面にはガスを吸着し易い金属などからなる
ゲッター５か取り付けられている。次に、外槽ｌの周端
部１ａおよび内槽２の周端部２ａを、全周に亙ってそれ
ぞれ第２図に示すように折り返して巻き締めし、これに
上り外槽ｌと内槽２とを仮固定して二重槽Ａとする。First, a bottomed cylindrical stainless steel (SUS304) inner tank 2 is inserted into a bottomed cylindrical carbon steel outer tank I.
') A pore 4 is formed in the peripheral end 2a of the inner tank at the peripheral end 1a, and a getter 5 made of metal or the like that easily adsorbs gas is attached to the inner surface of the outer tank 1. Next, the peripheral end 1a of the outer tank 1 and the peripheral end 2a of the inner tank 2 are folded back and tightened around the entire circumference as shown in FIG. Tank 2 is temporarily fixed to form double tank A.
次いで、この二重槽Ａの開口部を下方に向け、排気孔４
よりろう材６を充填して外槽ｌと内槽２との間の上記周
端部の当接部７近傍に全周に亙ってろう材６を配置する
と共に、排気孔４周辺にその周方向に沿ってろう材８を
載置し、このろう材８の上に真空封止板９を載置する。Next, the opening of this double tank A is directed downward, and the exhaust hole 4 is opened.
The brazing material 6 is filled with the brazing material 6, and the brazing material 6 is disposed around the entire circumference near the abutment section 7 at the peripheral end between the outer tank 1 and the inner tank 2, and the brazing material 6 is placed around the exhaust hole 4. A brazing filler metal 8 is placed along the circumferential direction, and a vacuum sealing plate 9 is placed on top of the brazing filler metal 8.
ここで、ろう材８を載置する際には、真空封止板９を載
置した後の後述する真空排気処理のときに通気可能とな
るような間隙を設けて載置する。また、ろう材６および
ろう材８には、ニッケル系または銅系のもので、粒状、
線状、粉状などの状態のものが適宜選択されて用いられ
ろ。その後、上記の状態を維持して二重槽Ａを真空加熱
炉に入れ、まず真空度１材８の間隙を介して外Ｉｌｌと
内槽２と間を真空にする。次いで、温度６００〜１２０
０°Ｃて加熱処理し、ろう材６およびろう材８を溶融せ
しめることにより上記外槽１と内槽２との各々の周端部
の当接部７を接合し、さらに真空封止板９を自重により
排気孔４の周部に当接させ、ろう付け接合せしめて同排
気孔４を真空封止する。ここで、上記の真空処理および
ろう付け処理は、他に例えば真空処理可能な還元性雰囲
気炉内で行なってもよい。Here, when the brazing filler metal 8 is placed, it is placed with a gap that allows ventilation during the vacuum evacuation process described later after the vacuum sealing plate 9 is placed. In addition, the brazing filler metal 6 and the brazing filler metal 8 are nickel-based or copper-based, and are granular or
Those in a linear or powdered form should be selected and used as appropriate. Thereafter, the double tank A is placed in a vacuum heating furnace while maintaining the above state, and first, a vacuum is created between the outer tank A and the inner tank 2 through the gap between the vacuum degree 1 material 8. Then the temperature is 600-120
Heat treatment is carried out at 0° C. to melt the brazing filler metal 6 and the brazing filler metal 8, thereby joining the abutment portions 7 at the circumferential ends of the outer tank 1 and the inner tank 2, and further sealing the vacuum sealing plate 9. is brought into contact with the periphery of the exhaust hole 4 by its own weight, and the exhaust hole 4 is vacuum-sealed by brazing and joining. Here, the above-mentioned vacuum treatment and brazing treatment may be performed in a reducing atmosphere furnace capable of vacuum treatment, for example.
このような金属製真空二重槽の製造方法にあっては、以
下に述べるような効果を得ることができる。With this method of manufacturing a metal vacuum double tank, the following effects can be obtained.
（１）外槽１と内槽２とに膨張係数の異なる金属を用い
た場合でも、これら外槽１と内槽２との周端部の接合を
十分な気密が得られるように確実に行なうことができ、
しかも高価な溶接機を用いることかないため低コストで
行なうことができる。(1) Even when metals with different coefficients of expansion are used for the outer tank 1 and the inner tank 2, the peripheral edges of the outer tank 1 and the inner tank 2 are reliably joined to provide sufficient airtightness. It is possible,
Moreover, since no expensive welding machine is used, the process can be carried out at low cost.
（２）周端部を折り返して巻き締めするため、外ｔｅｌ
および内槽２の開口部の寸法精度を高くする必要がなく
、したがって工程管理が容易になる。(2) Because the peripheral end is folded back and rolled up, the outer tel.
Moreover, there is no need to increase the dimensional accuracy of the opening of the inner tank 2, and therefore process control becomes easier.
（３）周端部を巻き締めることにより（反ｉ門定するた
め、外槽ｌと内槽２との芯出しか容易であり、したがっ
て量産を可能にする。(3) By winding and tightening the circumferential ends, it is easy to center the outer tank 1 and the inner tank 2, and therefore mass production is possible.
（４）また、周端部を巻き締めることにより、当接部７
近傍に配置するろう材６に微細粉状のものを用いること
ができ、さらに開口部の全周に亙って巻き締めを行なう
ことにより、ろう付け後に開口部が変形することを防止
することができる。(4) Also, by tightening the peripheral end, the abutment part 7
Finely powdered brazing material 6 can be used as the brazing material 6 placed nearby, and by wrapping and tightening around the entire circumference of the opening, it is possible to prevent the opening from deforming after brazing. can.
また、」二重の方法により製造した金属製真空二重槽に
あっては、
（５）周端部を折り返すことによって開口部の周壁の肉
厚が厚くなるため開口部の強度か十分に得られ、また周
端部を折り返すことによって開口部の周端部が滑面にな
るためこの開口部周端部がパツキンのシール面に適し、
さらにこの周端面が滑面になるため組み立て中の同周端
部による怪我を防止することができる。In addition, in the case of a double-walled metal vacuum chamber manufactured by the double layer method, (5) folding back the peripheral edge increases the thickness of the peripheral wall of the opening, so that the strength of the opening cannot be sufficiently increased. In addition, by folding back the peripheral edge, the peripheral edge of the opening becomes a smooth surface, so this peripheral edge of the opening is suitable for the sealing surface of the packing.
Furthermore, since this peripheral end surface is a smooth surface, it is possible to prevent injuries caused by the peripheral end during assembly.
なお、上記の例では、外←Δｌと内槽２とを仮固定する
際、外槽ｌおよび内槽２の両方の周端部を折り返して巻
き締めたが、第３図に示すように内槽２の周端部２ａを
外槽１の周端部１ａより突出させ、この内槽２の周端部
２ａを外方に折り返して巻き締めるようにしてもよい。In the above example, when temporarily fixing the outer tank ←Δl and the inner tank 2, the circumferential ends of both the outer tank l and the inner tank 2 were folded back and tightened, but as shown in FIG. The circumferential end 2a of the tank 2 may be made to protrude from the circumferential end 1a of the outer tank 1, and the circumferential end 2a of the inner tank 2 may be folded back outward and wound tightly.
「発明の効果」
以上に説明したように、この発明は、内槽および底部に
排気孔を設けた外槽の各々の開口部の周端部を当接させ
、次にこれら内槽および外槽の周端部の少なくとも一方
を折り返して巻き締めし、次いでこれの開口部を下にし
て内槽と外槽との間の」二重周端部の当接部近傍にろう
材を配置すると共に、上記外槽の排気孔周辺にろう材を
載置し、このろう材の上に上記排気孔を封止する真空封
止板を載置し、その後真空排気処理およびろう付け処理
をして上記内槽および外槽の周端部の当接部および真空
封止板を接合するようにしたものであるから、外槽と内
槽とに膨張係数の異なる金属を不都合なく用いろことか
てさ、また外槽および内槽の開口部の寸法管理を容易に
することができると共にこれらの芯出しを容易に行なう
ことができ、ができる。 また、上記の方法により製造
した金属製真空二重槽にあっては、開口部か十分な強度
を有し、さらにこの開口部の周端部をパツキンのシール
面に適用できる。"Effects of the Invention" As explained above, the present invention brings the peripheral ends of the respective openings of the inner tank and the outer tank provided with exhaust holes in the bottom into contact, and then the inner tank and the outer tank At least one of the circumferential edges is folded back and rolled up, and then a brazing material is placed near the contact area of the double circumferential edge between the inner tank and the outer tank with the opening facing down. , a brazing metal is placed around the exhaust hole of the outer tank, a vacuum sealing plate is placed on top of the brazing metal to seal the exhaust hole, and then a vacuum evacuation process and a brazing process are performed. Since the abutting parts and vacuum sealing plates at the peripheral ends of the inner and outer tanks are joined together, metals with different expansion coefficients can be used for the outer and inner tanks without any inconvenience. Moreover, it is possible to easily control the dimensions of the openings of the outer tank and the inner tank, and also to easily center them. In addition, in the metal vacuum double tank manufactured by the above method, the opening has sufficient strength, and furthermore, the peripheral end of the opening can be applied to the sealing surface of the packing.
第１図および第２図はこの発明の製造方法の一例を説明
するための図であって、第１図は金属製真空二重槽の部
分側断面図、第２図は第１図に示した金属製真空二重槽
の要部断面図、第３図：工この発明の製造方法の他の例
を説明するｆ二めの金属製真空二重槽の要部断面図、第
４図および第５図は従来の製造方法の一例を説明するた
めの図であって、第４図は金属製真空二重槽の部分側断
面図、第５図は第４図に示した金属製真空二重槽の要部
断面図である。
Ａ・・・・・・金属製真空二重槽、ｌ ・・外ｔ□ｌａ
・・・外ｈ！Ｗの周端部、２・・ 内槽、２〕
・内［曹の周端部、３・・・・・底部、４ ・・排気孔
、６・・・・・ろうｆオ、第１図
第２図 第３図
第４図
第５ｒＭ1 and 2 are diagrams for explaining an example of the manufacturing method of the present invention, in which FIG. 1 is a partial side sectional view of a metal vacuum double tank, and FIG. 2 is a diagram showing the structure shown in FIG. Fig. 3 is a cross-sectional view of a main part of a second metal vacuum double tank; FIG. 5 is a diagram for explaining an example of a conventional manufacturing method, in which FIG. 4 is a partial side sectional view of a metal vacuum double tank, and FIG. It is a sectional view of the main part of a heavy tank. A... Metal vacuum double tank, l...outer t□la
...Outside h! Peripheral end of W, 2... Inner tank, 2]
・Inner circumferential edge, 3...bottom, 4...exhaust hole, 6...roof, Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5rM
Claims (1)
金属製真空二重槽を製造するに際して、内槽および底部
に排気孔を設けた外槽の各々の開口部の周端部を当接さ
せ、次にこれら内槽および外槽の周端部の少なくとも一
方を折り返して巻き締めし、次いでこれの開口部を下に
して内槽と外槽との間の上記周端部の当接部近傍にろう
材を配置すると共に、上記外槽の排気孔周辺にろう材を
載置し、このろう材の上に上記排気孔を封止する真空封
止板を載置し、その後真空排気処理およびろう付け処理
をして上記内槽および外槽の周端部の当接部および真空
封止板を接合することを特徴とする金属製真空二重槽の
製造方法。When manufacturing a metal vacuum double tank in which the gap between the metal inner tank and the metal outer tank is a vacuum insulation layer, the peripheral edge of each opening of the inner tank and the outer tank with exhaust holes provided at the bottom. Then, at least one of the circumferential ends of the inner tank and the outer tank is folded back and tightened, and then the above-mentioned circumferential end between the inner tank and the outer tank is placed with the opening thereof facing down. placing a brazing material near the abutting portion of the outer tank, placing a brazing material around the exhaust hole of the outer tank, and placing a vacuum sealing plate for sealing the exhaust hole on top of the brazing material; A method for manufacturing a double vacuum tank made of metal, characterized in that a vacuum evacuation process and a brazing process are then carried out to join the abutting parts and the vacuum sealing plate at the peripheral ends of the inner tank and the outer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61218512A JPH0779771B2 (en) | 1986-09-17 | 1986-09-17 | Manufacturing method of metal vacuum double tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61218512A JPH0779771B2 (en) | 1986-09-17 | 1986-09-17 | Manufacturing method of metal vacuum double tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6373923A true JPS6373923A (en) | 1988-04-04 |
| JPH0779771B2 JPH0779771B2 (en) | 1995-08-30 |
Family
ID=16721086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61218512A Expired - Lifetime JPH0779771B2 (en) | 1986-09-17 | 1986-09-17 | Manufacturing method of metal vacuum double tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0779771B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200511A (en) * | 1990-11-30 | 1992-07-21 | Odashima Kibutsu Seisakusho:Kk | Manufacture of vacuum bottle made of double metal |
| JP2006026690A (en) * | 2004-07-16 | 2006-02-02 | Sankei Giken Kogyo Co Ltd | Method for manufacturing internal/external double tubular body |
| JP2014190443A (en) * | 2013-03-27 | 2014-10-06 | Zojirushi Corp | Vacuum insulation panel |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106121A (en) * | 1984-10-30 | 1986-05-24 | 日本酸素株式会社 | Production of metal double bottle |
-
1986
- 1986-09-17 JP JP61218512A patent/JPH0779771B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106121A (en) * | 1984-10-30 | 1986-05-24 | 日本酸素株式会社 | Production of metal double bottle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04200511A (en) * | 1990-11-30 | 1992-07-21 | Odashima Kibutsu Seisakusho:Kk | Manufacture of vacuum bottle made of double metal |
| JP2006026690A (en) * | 2004-07-16 | 2006-02-02 | Sankei Giken Kogyo Co Ltd | Method for manufacturing internal/external double tubular body |
| JP2014190443A (en) * | 2013-03-27 | 2014-10-06 | Zojirushi Corp | Vacuum insulation panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0779771B2 (en) | 1995-08-30 |
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