JPS6136141A - Method for bonding glass tube to metal fixture - Google Patents
Method for bonding glass tube to metal fixtureInfo
- Publication number
- JPS6136141A JPS6136141A JP15640984A JP15640984A JPS6136141A JP S6136141 A JPS6136141 A JP S6136141A JP 15640984 A JP15640984 A JP 15640984A JP 15640984 A JP15640984 A JP 15640984A JP S6136141 A JPS6136141 A JP S6136141A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- metal fixture
- tube
- annular part
- sealing metal
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は例えばガラス管の両端部を封着金具で塞いだ真
空管を製作する際のガラス管と封着金具との結合法に関
する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of joining a glass tube and a sealing fitting when manufacturing a vacuum tube in which both ends of the glass tube are closed with sealing fittings, for example.
（従来の技術）
太陽熱集熱器等として真空管を用いたものがある。この
真空管はガラス管内に熱媒体が流通する流通管を挿通し
、ガラス管の両端部に該流通管を保持するとともにガラ
ス管の端部開口部を密封する封着金具を取付けている。(Prior Art) There are solar heat collectors that use vacuum tubes. In this vacuum tube, a flow tube through which a heat medium flows is inserted into the glass tube, and sealing fittings are attached to both ends of the glass tube to hold the flow tube and seal the end openings of the glass tube.
斯る封着金具とガラス管の結合法として本出願人は特願
昭５７−２２８５２９号に改良案を提案した。The present applicant proposed an improved method for joining such a sealing fitting and a glass tube in Japanese Patent Application No. 57-228529.
この改良案の概略を第５図（Ａ）乃至（Ｉｔ）に基づい
て説明すると、先ず第５図（＾）に示す如く容器（ｌｏ
ｏ）内に満たした溶融ガラス（１０１）中に封着金具（
１０２）の環状部を浸漬し、次いで封着金具（１０２）
を−上昇せしめ、封着金具（１０２）の環状部に溶融ガ
ラスを付着せしめたまま筒状に引き−Ｌげる。この筒状
に引き上げられたガラス（１０３）を第５図（Ｂ）に示
すようにガスバーナ（１０４）等を用いて溶断し、第５
図（Ｃ）に示すように封着金具（１０２）の環状部にガ
ラスクラッド（１０５）を形成し、このガラスクラッド
（１０５）にガラス管（１０Ｂ）の端部を突き当てて熔
融一体化せしめ、第５図（Ｄ）に示す如き真空管を得る
ようにしたものである。The outline of this improvement plan will be explained based on FIGS. 5(A) to (It). First, as shown in FIG.
o) The sealing fitting (
102), and then the sealing fitting (102).
is raised and pulled into a cylindrical shape with the molten glass attached to the annular portion of the sealing fitting (102). The glass (103) pulled up into a cylindrical shape is melted and cut using a gas burner (104) as shown in FIG. 5(B).
As shown in Figure (C), a glass cladding (105) is formed on the annular part of the sealing fitting (102), and the end of the glass tube (10B) is butted against this glass cladding (105) to melt and integrate. , a vacuum tube as shown in FIG. 5(D) is obtained.
（発明が解決しようとする問題点）
上記の如き結合法による場合、筒状に引き上げられたガ
ラス（１０３）をガスバーナ（１０４）の火炎にて熔断
するため、第５図（Ｂ）に示すようにその一部（１０３
ａ）が最後に残ることとなり、この部分（＋０３ａ）を
熔断するには更に火力を強めなければならず、火炎の強
さ、移動速度等の制御が複雑となり、自動化に支障を来
たす。また熔断した後も第５図（Ｃ）に示す如く一部に
垂れ部（１０５ａ）が生じ、ガラス管（１０１３）を熔
着した後にコブ（１０７）となる。このコブ（１０７）
は真空管の機能には何ら影響はないが、応力が集中し、
輸送時、組立時の破損原因となることがある。(Problems to be Solved by the Invention) In the case of the above-described bonding method, the glass (103) pulled up into a cylindrical shape is melted with the flame of the gas burner (104). Part of it (103
Part a) will remain at the end, and in order to melt this part (+03a), the firepower must be further strengthened, which complicates the control of flame strength, movement speed, etc., and poses a hindrance to automation. Further, even after melting, a sagging portion (105a) is formed in a part as shown in FIG. 5(C), and a bump (107) is formed after the glass tube (1013) is welded. This bump (107)
does not affect the function of the vacuum tube in any way, but it concentrates stress,
This may cause damage during transportation or assembly.
（問題点を解決するための手段）
上記問題点を解決すべく本発明は、封着金具の環状部に
付着せしめたまま引き上げた筒状ガラスを水平方向に破
断し、この破断部を口焼きした後、ガラス管端部を突き
合せて熔着するようにした。(Means for Solving the Problems) In order to solve the above problems, the present invention breaks the cylindrical glass that has been pulled up while still attached to the annular part of the sealing fitting in the horizontal direction, and burns the broken part. After that, the ends of the glass tubes were butted together and welded.
（実施例） 以下に本発明の実施例を添付図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the accompanying drawings.
第１図は口焼きまでの工程を示す図であり、容器（１）
内には１０００℃〜１２００℃の溶融ガラス（２）が保
有され、容器（１） １方にはチャック機構を備えた昇
降装置（３）が設けられ、これら容器（１）と昇降装置
（３）の間には送り装置（０によって水平方向に移動す
る切断具（５）が配置される。Figure 1 is a diagram showing the process up to mouth-baking, and shows the container (1).
Molten glass (2) at a temperature of 1000°C to 1200°C is held inside the container (1). A lifting device (3) equipped with a chuck mechanism is provided on one side of the container (1), and these containers (1) and the lifting device (3) are ) between which a cutting tool (5) is arranged which is moved horizontally by means of a feed device (0).
而して、その工程は先ず第１図（Ａ）に示すように封着
金具（６）を保持した昇降装置（３）を下降させ、封着
金具（６）下部の環状部（６ａ）を溶融ガラス（２）中
に浸漬せしめ、この後、昇降装置（３）を−Ｌ昇せしめ
て環状部（６ａ）に溶融ガラス（２）を付着したまま封
着金具（６）を引き−Ｌげる。すると封着金具（６）の
−ヒ昇につれ溶融ガラス（２）も筒状に引きヒげられ、
この引き上げられた部分は冷却固化して筒状ガラス（７
）となる。As shown in FIG. 1(A), the process begins by lowering the lifting device (3) holding the sealing fitting (6), and lifting the annular portion (6a) at the bottom of the sealing fitting (6). Immerse it in the molten glass (2), then raise the lifting device (3) by -L and pull the sealing fitting (6) with the molten glass (2) attached to the annular part (6a). Ru. Then, as the sealing metal (6) rises, the molten glass (2) is also pulled into a cylindrical shape.
This lifted part is cooled and solidified to form a cylindrical glass (7
).
この後第１図（Ｂ）に示す如く、破断Ｘ（５）を水平方
向に高速で走らせ、筒状ガラス（７）を封着金具（６）
の環状部（６ａ）下方にて破断する。すると破断部はノ
コギリの刃状に鋭角な山部及び谷部が連続した形状とな
るため、この破断部を加熱して口焼きを施し、第１図（
Ｃ）に示すように封着金具（８）の環状部（６ａ）に垂
れ部等のないガラスクラッド（８）を形成する。After that, as shown in Fig. 1(B), the fracture
It breaks below the annular part (6a). As a result, the fractured part has a saw blade-like shape with continuous acute peaks and valleys, so this fractured part is heated and burnt, as shown in Figure 1 (
As shown in C), a glass cladding (8) with no sag or the like is formed on the annular portion (6a) of the sealing fitting (8).
次いで、該ガラスクラッド（８）に第２図に示すように
ガラス管（８）を突き合せて加熱熔着し真空管を得る。Next, the glass tube (8) is butted against the glass cladding (8) as shown in FIG. 2 and welded by heat to obtain a vacuum tube.
第３図は破断方法の別実施例を示す平面図であり、この
実施例にあっては破断具（５）を水平回転せしめて筒状
ガラス（７）を破断するようにしている。このようにす
れば破断装置が占めるスペースを更に小さくできる。−
ヒ述の実施例は機械的に作動する破断装置について記し
たが、棒状の破断具を用いて、人手で水平に振って破断
しても同様の効果が得られる。FIG. 3 is a plan view showing another embodiment of the breaking method, in which the breaking tool (5) is horizontally rotated to break the cylindrical glass (7). In this way, the space occupied by the breaking device can be further reduced. −
Although the above-mentioned embodiment has been described using a mechanically operated breaking device, the same effect can be obtained by using a rod-shaped breaking tool and manually swinging it horizontally to break it.
また、第４図は破断具の形状の変更例を示す断面図であ
り、筒状ガラス（７）は衝撃によって破断されるため、
第４図（Ａ）に示す如き通常の刃形成をしたものの他に
、第４図（Ｂ）或いは第４図（Ｃ）に示すような断面矩
形状又は断面円形をしたものでもよい。Moreover, FIG. 4 is a sectional view showing an example of changing the shape of the breaking tool, and since the cylindrical glass (7) is broken by impact,
In addition to the usual blade shape as shown in FIG. 4(A), a blade having a rectangular cross section or a circular cross section as shown in FIG. 4(B) or FIG. 4(C) may be used.
（発明の効果）
以上に説明した如く本発明によれば、封着金具の環状部
に溶融ガラスを付着して筒状に引き上げ、この筒状ガラ
スを切断するのにガスバーナ等を用いず、機械的に叩い
て破断し、この破断部を口焼きしてガラスクラッドを形
成するようにしたため、従来の火炎溶断で必要とされる
装置、例えば酸素、アセチレンガス供給装置、配管、自
動弁、トーチ、制御ケーブル、着火確認装置、ガス漏れ
検知器、トーチ送り装置等全てが不要となり、自動化が
極めて容易となる。また破断部はノコギリの刃状となっ
ていても、その凹凸は均一に生じるため、後の口焼きに
よって全周に一様な厚さのガラスクラッドを形成するこ
とができ、従来の如きコブが発生しない等多くの効果を
発揮する。(Effects of the Invention) As explained above, according to the present invention, molten glass is attached to the annular portion of the sealing fitting and pulled up into a cylindrical shape, and the cylindrical glass is cut by a machine without using a gas burner or the like. Since the glass cladding is formed by hitting the glass and burning the broken part, it does not require the equipment required for conventional flame melting, such as oxygen, acetylene gas supply equipment, piping, automatic valves, torches, etc. Control cables, ignition confirmation devices, gas leak detectors, torch feeding devices, etc. are all unnecessary, making automation extremely easy. In addition, even though the broken part has a saw-tooth shape, the unevenness is uniform, so it is possible to form a glass cladding with a uniform thickness around the entire circumference by later baking, which eliminates the bumps that were previously seen. It has many effects such as preventing the occurrence of
第１図（Ａ）乃至（Ｃ）は溶融ガラスの引き一部げから
口焼きまでの工程を示す正面図、第２図は製品である真
空管の一部の断面図、第３図は破断方法の別実施例を示
す平面図、第４図（Ａ）乃至（Ｃ）は破断具の断面図、
第５図（Ａ）乃至（Ｄ）は従来の結合法を工程順に示し
た図である。
尚、図面中（１）は容器、（２）は溶融ガラス、（３）
は昇降装置、（５）は破断具、（６）は封着金具、（６
ａ）は封着金具の環状部、（７）は筒状ガラス、（８）
はガラスクラッド、（８）はガラス管である。Figures 1 (A) to (C) are front views showing the process from drawing the molten glass to burning, Figure 2 is a cross-sectional view of a part of the vacuum tube that is the product, and Figure 3 is the breaking method. A plan view showing another embodiment of , FIGS. 4(A) to 4(C) are sectional views of the breaking tool,
FIGS. 5A to 5D are diagrams showing the conventional bonding method in the order of steps. In the drawings, (1) is a container, (2) is a molten glass, and (3) is a container.
is a lifting device, (5) is a breaking tool, (6) is a sealing fitting, (6
a) is the annular part of the sealing fitting, (7) is the cylindrical glass, (8)
is a glass clad, and (8) is a glass tube.
Claims (1)
具を上昇させ、この上昇に伴い封着金具の環状部に溶融
ガラスを付着せしめて筒状に引き上げ、次いで筒状に引
き上げられたガラスを環状部の下方位置において水平方
向に破断し、この破断した部分を口焼きした後、この口
焼きした部分にガラス管の端部を当接させて加熱熔着せ
しめるようにしたことを特徴とするガラス管と封着金具
との結合法。After the annular part of the sealing fitting is immersed in the molten glass, the sealing fitting is raised, and as the sealing fitting rises, the molten glass adheres to the annular part of the sealing fitting and is pulled up into a cylindrical shape. The broken glass is horizontally broken at a position below the annular part, the broken part is burnt, and the end of the glass tube is brought into contact with the burnt part and heated and welded. A unique method of joining glass tubes and sealing fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15640984A JPS6136141A (en) | 1984-07-26 | 1984-07-26 | Method for bonding glass tube to metal fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15640984A JPS6136141A (en) | 1984-07-26 | 1984-07-26 | Method for bonding glass tube to metal fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6136141A true JPS6136141A (en) | 1986-02-20 |
Family
ID=15627112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15640984A Pending JPS6136141A (en) | 1984-07-26 | 1984-07-26 | Method for bonding glass tube to metal fixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6136141A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2390477A (en) * | 2002-02-21 | 2004-01-07 | Pioneer Corp | Electron beam plotter |
| US9910006B2 (en) * | 2014-11-13 | 2018-03-06 | Endress+Hauser Conducta Gmbh+Co. Kg | Method for manufacturing a glass assembly and apparatus for executing the method |
-
1984
- 1984-07-26 JP JP15640984A patent/JPS6136141A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2390477A (en) * | 2002-02-21 | 2004-01-07 | Pioneer Corp | Electron beam plotter |
| GB2390477B (en) * | 2002-02-21 | 2005-08-03 | Pioneer Corp | Electron beam plotter |
| US9910006B2 (en) * | 2014-11-13 | 2018-03-06 | Endress+Hauser Conducta Gmbh+Co. Kg | Method for manufacturing a glass assembly and apparatus for executing the method |
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