JP2002012455A - Low pressure double glazing - Google Patents

Low pressure double glazing

Info

Publication number
JP2002012455A
JP2002012455A JP2000302615A JP2000302615A JP2002012455A JP 2002012455 A JP2002012455 A JP 2002012455A JP 2000302615 A JP2000302615 A JP 2000302615A JP 2000302615 A JP2000302615 A JP 2000302615A JP 2002012455 A JP2002012455 A JP 2002012455A
Authority
JP
Japan
Prior art keywords
glass
low
sealing material
pressure double
double glazing
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
JP2000302615A
Other languages
Japanese (ja)
Inventor
Hiromi Hase
広美 長谷
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.)
Central Glass Co Ltd
Original Assignee
Central Glass Co Ltd
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 Central Glass Co Ltd filed Critical Central Glass Co Ltd
Priority to JP2000302615A priority Critical patent/JP2002012455A/en
Publication of JP2002012455A publication Critical patent/JP2002012455A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/249—Glazing, e.g. vacuum glazing
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/22—Glazing, e.g. vaccum glazing

Abstract

PROBLEM TO BE SOLVED: To solve a problem of breaking of plate glass around an air exit because of local heating, in a method of sealing the air exit using a cap member with low fusion point glass, the low fusion point glass must be heated over softening point of 400 deg.C. SOLUTION: Low pressure double glazing is formed with a low pressure space by sealing periphery edge of a panel by a first sealant, and a disk with a hole is fixed on the air exit for making low pressure space by a second sealant, and the cap member is fixed on the disk by a third sealant. The first and second sealants are the low fusion glass and the third sealant is a metal with a melting point of 350 deg.C or lower.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、住宅・非住宅など
の建築分野、自動車・車両・船舶・航空機などの輸送分
野、冷凍庫・冷凍ショーケース・恒温恒湿槽などの設備
機器分野などの省エネルギーを要求される開口部に適用
される高い断熱性能を有する低圧複層ガラスとその製造
方法に関する。The present invention relates to the field of energy saving in the field of construction such as housing and non-residential, the field of transportation of automobiles, vehicles, ships, aircrafts, etc., and the field of equipment such as freezers, freezer showcases, constant temperature and humidity chambers. The present invention relates to a low-pressure double-glazed glass having high heat insulating performance applied to an opening that requires a high temperature and a method for producing the same.

【０００２】[0002]

【従来の技術】最近、省エネルギーに優れた快適で健康
な住環境をつくるため、従来に増して断熱性能を有する
複層ガラスの使用頻度が高まり、急速に普及している。2. Description of the Related Art In recent years, in order to create a comfortable and healthy living environment with excellent energy saving, double glazing having heat insulation performance has been used more frequently than ever before and has been rapidly spreading.

【０００３】この複層ガラス一つとして、対向する板ガ
ラスにより形成される空間を低圧にした低圧複層ガラス
が提案されている。[0003] As one of the double-glazed glasses, a low-pressure double-glazed glass in which a space formed by opposing plate glasses is reduced in pressure is proposed.

【０００４】このような低圧複層ガラスにおいて、２枚
の板ガラスの間隙部を減圧して断熱性を付与するために
は、圧力を１０Pa以下、好ましくは１Pa以下まで減圧す
る必要がある。所望の圧力に減圧するために、図６に示
すように、通常は板ガラス３に排気口４を設け、該排気
口４に排気管１４を取り付け、間隙部を排気する。排気
管にはガラス管が用いられる。[0004] In such a low-pressure double-glazed glass, in order to reduce the pressure in the gap between the two sheet glasses to impart heat insulation, it is necessary to reduce the pressure to 10 Pa or less, preferably 1 Pa or less. In order to reduce the pressure to a desired pressure, as shown in FIG. 6, an exhaust port 4 is usually provided in the sheet glass 3, and an exhaust pipe 14 is attached to the exhaust port 4, and the gap is exhausted. A glass tube is used for the exhaust pipe.

【０００５】排気管の封止を行いやすくするために、ガ
ラス管の内径は小さい。従って、排気抵抗が大きく、減
圧に長時間要するものであった。また、ガラス管で封止
しているため、封止部が破損しやすいという問題があっ
た。[0005] The inner diameter of the glass tube is small to facilitate sealing of the exhaust tube. Therefore, the exhaust resistance is large, and it takes a long time to reduce the pressure. In addition, there is a problem that the sealed portion is easily broken because the sealed portion is sealed with a glass tube.

【０００６】上記問題を解決するために、板ガラスに設
けている排気口を、蓋部材と低融点ガラス封着材で封止
する方法が提案されている。この方法は、ガラス管を用
いる排気に比し、排気口が大きく排気抵抗が小さくなる
ので、排気のための時間が短縮され排気口の封止部分の
強度も改善されるなどの利点を有している。[0006] In order to solve the above problem, there has been proposed a method of sealing an exhaust port provided in a sheet glass with a lid member and a low-melting glass sealing material. This method has the advantage that the exhaust port is large and the exhaust resistance is small as compared with exhaust using a glass tube, so that the time for exhaust is shortened and the strength of the sealing portion of the exhaust port is improved. ing.

【０００７】[0007]

【発明が解決しようとする課題】しかし、蓋部材を用い
て排気口を封止する方法は、板ガラスを封着可能な熱膨
張率の近い軟化点が４００℃以上の低融点ガラス封着材
で行うため、低融点ガラス封着材を軟化点の４００℃以
上に加熱する必要がある。このため、排気口付近の板ガ
ラスが局所的に加熱され、板ガラスの破損するという問
題が生じる。従って、蓋部材を用いて排気口を封止する
方法は、排気抵抗の問題は解決できるものの、板ガラス
の局部加熱による破損により、生産の歩留まりが低下し
てしまう。However, the method of sealing the exhaust port using the lid member is based on a low-melting-point glass sealing material having a softening point close to the coefficient of thermal expansion of 400 ° C. or higher and capable of sealing a sheet glass. Therefore, it is necessary to heat the low-melting glass sealing material to a softening point of 400 ° C. or more. For this reason, there is a problem that the sheet glass near the exhaust port is locally heated, and the sheet glass is damaged. Therefore, although the method of sealing the exhaust port using the lid member can solve the problem of the exhaust resistance, the yield of production is reduced due to damage due to local heating of the sheet glass.

【０００８】また、局所加熱を避けるために、複層ガラ
ス全体を低融点ガラス封着材の軟化点の４００℃以上に
加熱する方法もあるが、大型の加熱装置が必要となる。
加えて、封止後の徐冷工程が長くなるためにコストアッ
プの一因となっていた。In order to avoid local heating, there is a method of heating the entire double-layer glass to 400 ° C. or more, which is the softening point of the low-melting glass sealing material, but a large-sized heating device is required.
In addition, the slow cooling step after sealing is prolonged, which has contributed to an increase in cost.

【０００９】[0009]

【課題を解決するための手段】本発明は、２枚の板ガラ
スを所定の間隔で隔置し、この間隔を保持する点状、線
状または網状スペーサーを配設するとともに、このパネ
ルの周縁端部を第１の封着材で密封して、低圧空間が形
成された低圧複層ガラスにおいて、低圧空間とするため
に設けた排気口に孔を有する円板が第２の封着材で固定
され、該円板に蓋部材が第３の封着材で固定されている
ことを特徴としている。SUMMARY OF THE INVENTION According to the present invention, two sheets of glass are spaced at a predetermined interval, and a dot-like, linear or mesh-like spacer for maintaining this interval is provided. In the low-pressure double-layered glass in which the portion is sealed with the first sealing material and the low-pressure space is formed, a disk having a hole in the exhaust port provided for the low-pressure space is fixed with the second sealing material. The lid member is fixed to the disk with a third sealing material.

【００１０】該円板の熱膨張係数が板ガラスの熱膨張係
数の７０〜１３０％の範囲にある金属、または、Ａｌ
（アルミニウム）板であることを特徴としている。A metal having a coefficient of thermal expansion of 70 to 130% of a coefficient of thermal expansion of the glass sheet;
(Aluminum) plate.

【００１１】また、蓋部材が第３の封着材よりも高い融
点の金属であり、Ａｌ板であることを特徴としている。The lid member is made of a metal having a higher melting point than the third sealing material, and is made of an Al plate.

【００１２】第１と第２の封着材が低融点ガラス、第３
の封着材が３５０℃以下の融点の金属、あるいは３５０
℃以下の軟化点の低融点ガラスであることを特徴として
おり、該低融点ガラスが、弗化リン酸塩系のガラスで、
カチオンに関してはＰｂ：０〜７原子％、Ｓｎ：４２〜
６２原子％、Ｐ：３１〜５８原子％を有し、アニオンに
関してはＦ／Ｏが０．２５〜９の範囲にある組成であ
る。あるいは、リン酸塩系のガラスで、Ｐ2Ｏ5：６０〜
８０ｍｏｌ％、Ｂ2Ｏ3：０〜１０ｍｏｌ％、Ｒ2Ｏ（Ｒ
＝Ｌｉ、Ｎａ、Ｋの１種類以上）：１５〜２５ｍｏｌ
％、ＢａＯ：２〜９ｍｏｌ％であることを特徴としてい
る。The first and second sealing materials are made of low melting glass,
Is a metal having a melting point of 350 ° C. or less,
It is characterized by being a low melting point glass having a softening point of not more than ℃, the low melting point glass is a fluorophosphate-based glass,
Regarding cations, Pb: 0 to 7 atomic%, Sn: 42 to
The composition has 62 atomic% and P: 31 to 58 atomic%, and has an F / O in the range of 0.25 to 9 for anions. Alternatively, phosphate-based glass, P 2 O 5 : 60 to
80mol%, B 2 O 3: 0~10mol%, R 2 O (R
= Li, Na, K or more): 15 to 25 mol
%, BaO: 2 to 9 mol%.

【００１３】さらに、ガラスに設けた排気口の周りのガ
ラス面を凹状であることが好ましい。Further, it is preferable that the glass surface around the exhaust port provided in the glass is concave.

【００１４】[0014]

【発明の実施の形態】２枚の板ガラスとは、クリアなフ
ロート板ガラス、熱線吸収板ガラス、熱線反射板ガラ
ス、高性能熱線反射板ガラス、低放射板ガラス、線入板
ガラス、網入板ガラス、型板ガラス、強化ガラス、倍強
度ガラス、低反射板ガラス、高透過板ガラス、摺りガラ
ス、タペスティ（フロスト）ガラス、セラミックス印刷
ガラスなど各種板ガラスを適宜組み合わせることができ
る。２枚の板ガラスの少なくとも一枚は、ガラス面の１
箇所以上に、好ましくは円形状の１ｍｍφ以上の貫通孔
を有し、排気口とする。また、断熱性能を高めるため
に、少なくとも１枚は低放射板ガラスとすることが好ま
しい。DESCRIPTION OF THE PREFERRED EMBODIMENTS Two sheets of glass are clear float glass, heat-absorbing glass, heat-reflecting glass, high-performance heat-reflecting glass, low-radiation glass, wire-filled glass, net-filled glass, mold glass, tempered glass. Various types of plate glass such as double-strength glass, low-reflection plate glass, high-transmission plate glass, ground glass, tapesti (frost) glass, and ceramics-printed glass can be appropriately combined. At least one of the two glass sheets has one of the glass surfaces.
It has a through hole of preferably 1 mmφ or more in a circular shape, and is used as an exhaust port. Further, in order to enhance the heat insulation performance, it is preferable that at least one sheet is made of low radiation plate glass.

【００１５】望ましくは、膜厚が１０〜６０ｎｍの亜
鉛、錫、チタン、インジウム、ビスマス、ジルコニウム
の酸化物の中から１種類以上選択した反射金属酸化物
層、膜厚が５〜３０ｎｍの銀層と、アルミニウム、チタ
ン、亜鉛、タンタル及びニッケルクロム合金から１種類
以上選択した金属を含有する膜厚が０．３〜３０ｎｍの
酸化防止層、膜厚が３０〜１００ｎｍの亜鉛、錫、チタ
ン、インジウム、ビスマス、ジルコニウムの酸化物の中
から１種類以上選択した金属酸化物反射層からなる皮膜
層が順に積層された、耐熱性に優れた低放射ガラスを用
いる。Preferably, a reflective metal oxide layer selected from one or more oxides of zinc, tin, titanium, indium, bismuth and zirconium having a thickness of 10 to 60 nm, and a silver layer having a thickness of 5 to 30 nm And an antioxidant layer having a thickness of 0.3 to 30 nm containing at least one metal selected from aluminum, titanium, zinc, tantalum and a nickel chromium alloy, and zinc, tin, titanium, and indium having a thickness of 30 to 100 nm. A low radiation glass excellent in heat resistance, in which a coating layer composed of a metal oxide reflective layer selected from one or more of oxides of bismuth and zirconium is used.

【００１６】あるいは、膜厚が１０〜６０ｎｍの亜鉛、
錫、チタン、インジウム、ビスマス、ジルコニウムの酸
化物の中から１種類以上選択した金属酸化物反射層、ア
ルミニウム、チタン、亜鉛、タンタル及びニッケルクロ
ム合金から１種類以上選択した金属を含有する膜厚が
０．３〜３０ｎｍの酸化防止層、膜厚が５〜３０ｎｍの
銀層と、アルミニウム、チタン、亜鉛、タンタル及びニ
ッケルクロム合金から１種類以上選択した金属を含有す
る膜厚が０．３〜３０ｎｍの酸化防止層、膜厚が３０〜
１００ｎｍの亜鉛、錫、チタン、インジウム、ビスマ
ス、ジルコニウムの酸化物の中から１種類以上選択した
金属酸化物反射層からなる皮膜層が順に積層された、耐
熱性に優れた低放射ガラスを用いるのが好ましい。Alternatively, zinc having a thickness of 10 to 60 nm,
A metal oxide reflecting layer selected from one or more of oxides of tin, titanium, indium, bismuth, and zirconium; and a film thickness containing a metal selected from one or more of aluminum, titanium, zinc, tantalum, and nickel-chromium alloys. An antioxidant layer having a thickness of 0.3 to 30 nm, a silver layer having a thickness of 5 to 30 nm, and a film containing at least one metal selected from aluminum, titanium, zinc, tantalum and a nickel chromium alloy having a thickness of 0.3 to 30 nm. Antioxidant layer, film thickness is 30 ~
Using a low-emissivity glass excellent in heat resistance, in which a coating layer composed of a metal oxide reflecting layer selected from one or more oxides of 100 nm of zinc, tin, titanium, indium, bismuth, and zirconium is sequentially laminated. Is preferred.

【００１７】２枚の板ガラスは同じ大きさとしても勿論
よいが、異なる大きさとして、小ガラスは、大ガラスよ
り、各辺において２〜６ｍｍ短くすることにより、封着
材としての低融点はんだガラスの２枚の板ガラス間への
浸透を容易にするので好ましい。Of course, the two sheets of glass may be the same size, but different sizes may be used, in which the small glass is shorter by 2 to 6 mm on each side than the large glass, so that the low melting point solder glass as the sealing material is used. This is preferable because it facilitates the penetration into the two sheet glasses.

【００１８】また、２枚の板ガラスはエッジを機械研
磨、レーザー等により面取り加工したものであること
が、取り扱いやすく好ましい。It is preferable that the two glass sheets have edges chamfered by mechanical polishing, laser or the like, because they are easy to handle.

【００１９】２枚の板ガラスの間隔を保持するために、
点状または線状のスペーサーを用いることができる。ス
ペーサーに用いる材料としては、ガラスに比べ硬度が低
く、かつ適切な圧縮強さを有するものであれば、とくに
限定されないが、金属、合金、鉄鋼、セラミックスが好
ましい。金属では鉄、銅、アルミニウム、タングステ
ン、ニッケル、クロム、チタンなど、合金、鉄鋼では炭
素鋼、クロム鋼、ニッケル鋼、ステンレス鋼、ニッケル
クロム鋼、マンガン鋼、クロムマンガン鋼、クロムモリ
ブデン鋼、珪素鋼、真鍮、ハンダ、ニクロム、ジュラル
ミンなどが用いられる。In order to maintain the distance between the two glass sheets,
Point or linear spacers can be used. The material used for the spacer is not particularly limited as long as it has a lower hardness than glass and has an appropriate compressive strength, but metals, alloys, iron and steel, and ceramics are preferable. For metals, iron, copper, aluminum, tungsten, nickel, chromium, titanium, etc. For alloys, for steel, carbon steel, chromium steel, nickel steel, stainless steel, nickel chrome steel, manganese steel, chromium manganese steel, chromium molybdenum steel, silicon steel , Brass, solder, nichrome, duralumin and the like are used.

【００２０】点状のスペーサーは球、円柱、角柱など
で、間隙部に、例えば格子状に配置する。The dot-like spacers are spheres, cylinders, prisms, or the like, and are arranged in gaps, for example, in a grid pattern.

【００２１】線状スペーサーは、断面が円形、半円形、
角形などで、直線状と曲線状のものがあり、網状スペー
サーは角形、菱形などが用いられる。The linear spacer has a circular or semicircular cross section.
There are a straight shape and a curved shape such as a square shape, and a square shape, a rhombus shape, or the like is used as the mesh spacer.

【００２２】スペーサーが金属または合金をセラミック
スでコーティングしたものでは、着色することにより意
匠性を向上させるとともに、金属特有の反射を抑制する
ことができる。When the spacer is formed by coating a metal or an alloy with a ceramic, the design can be improved by coloring, and the reflection characteristic of the metal can be suppressed.

【００２３】点状、線状または網状スペーサーの配設間
隔は１００ｍｍ以下であり、７５ｍｍ以下が好ましい。The spacing between the dot-like, linear or net-like spacers is 100 mm or less, preferably 75 mm or less.

【００２４】これらスペーサーの配設は、当該配設間隔
の範囲内であれば、規則的でも不規則的でも構わない。The arrangement of these spacers may be regular or irregular as long as it is within the range of the arrangement interval.

【００２５】２枚の板ガラスの間隔は０.０５ｍｍ以
上、２.０ｍｍ以下であり、０.１ｍｍ以上、１.０ｍｍ
以下が好ましい。The interval between the two glass sheets is 0.05 mm or more and 2.0 mm or less, and 0.1 mm or more and 1.0 mm or more.
The following is preferred.

【００２６】このパネルの周縁端部に用いる第１の封着
材としての低融点はんだガラスは、ガラス粉末単体、ガ
ラス粉末とセラミックス粉末を混合したガラスフリッ
ト、ガラスフリットを酢酸アミル等のビヒクルに分散さ
せたペーストやガラスロッドのような線材として加工さ
れたものなどを使用することができ、その組成は、例え
ば、特開昭４９−１１０７０９号公報、特開平１−２２
４２４８号公報、特開平８−１１９６６５号公報、本出
願人による特開平８−２２０８８５号公報等に記載され
た鉛ケイ酸塩ガラスや鉛ホウケイ酸塩ガラス単体及びそ
れらに耐火物フィラー等を含有させた低融点封着材を使
用することができる。The low melting point solder glass as the first sealing material used at the peripheral edge of the panel is a glass powder alone, a glass frit obtained by mixing a glass powder and a ceramic powder, or a glass frit dispersed in a vehicle such as amyl acetate. A paste or a material processed as a wire, such as a glass rod, can be used, and its composition is described in, for example, JP-A-49-110709 and JP-A-1-22.
No. 4248, JP-A-8-119665, JP-A-8-220885 filed by the present applicant, etc., and a lead silicate glass or a lead borosilicate glass alone, and a refractory filler or the like contained therein. A low melting point sealing material can be used.

【００２７】また、例えば、特開平６−１８３７７５号
公報、特開平９−１７５８３３号公報、特開平９−１８
８５４４号公報等に記載された鉛を含まないリン酸塩ガ
ラスに耐火物フィラー等を含有させた低融点封着材など
各種の低融点封着材を使用することができる。Further, for example, JP-A-6-183775, JP-A-9-175833, JP-A-9-18
Various low-melting-point sealing materials, such as a low-melting-point sealing material in which a refractory filler or the like is contained in a lead-free phosphate glass described in JP-A-8544 or the like, can be used.

【００２８】板ガラスの間隙部を低圧空間とするため、
板ガラスのガラス面に設ける排気口に、孔を有する円板
を第２の封着材で接着する。In order to make the gap between the sheet glasses a low-pressure space,
A disk having a hole is bonded to an exhaust port provided on the glass surface of the plate glass with a second sealing material.

【００２９】円板には板ガラスの熱膨張係数の７０〜１
３０％の範囲にある金属を用いる。そのような金属とし
ては、４２６合金や５０合金などがあげられる。The circular plate has a thermal expansion coefficient of 70 to 1 of the sheet glass.
A metal in the range of 30% is used. Examples of such a metal include a 426 alloy and a 50 alloy.

【００３０】さらに、円板にＡｌ板を用いても良い。Ａ
ｌ板は、表面がＡｌの酸化物で覆われている。このたた
め、軟化点温度以上にある低融点ガラス封着材との濡れ
性が良い。しかし、Ａｌの熱膨張率２２４×１０-7／℃
と板ガラスの熱膨張率８９×１０-7／℃との差異のた
め、冷却中に板ガラスにクラックが生じ、Ａｌ板を低融
点ガラス封着材で固定することは困難と思われていた。
しかし、Ａｌの柔らかい性質を利用することで、熱膨張
率の違いにより生じる応力を緩和し、気密封着が可能と
なる。Further, an Al plate may be used for the disk. A
The surface of the 1 plate is covered with an oxide of Al. For this reason, the wettability with the low-melting glass sealing material having a softening point temperature or higher is good. However, the coefficient of thermal expansion of Al is 224 × 10 −7 / ° C.
Because of the difference between the coefficient of thermal expansion of the sheet glass and 89 × 10 −7 / ° C., cracks occurred in the sheet glass during cooling, and it was considered difficult to fix the Al plate with a low-melting glass sealing material.
However, by utilizing the soft property of Al, the stress generated due to the difference in the coefficient of thermal expansion is reduced, and hermetic sealing can be performed.

【００３１】円板の厚みは、本発明の低圧複層ガラスが
引き違い窓などに用いられることを考慮すると、蓋部材
との厚みとの合計が、１０ｍｍ以下にすることが好まし
い。Considering that the low-pressure double-glazed glass of the present invention is used for a sliding window, the total thickness of the disc and the thickness of the lid member is preferably 10 mm or less.

【００３２】円板に用いるＡｌ板の厚みは、熱膨張の厚
みを緩和するため、２ｍｍ以下好ましくは１ｍｍ以下に
することが望ましい。The thickness of the Al plate used for the disk is preferably 2 mm or less, more preferably 1 mm or less in order to reduce the thickness of thermal expansion.

【００３３】また、第２の封着材には低融点はんだガラ
スを用いる。用いる部材としては第１の封着材と同一の
ものでもかまわないが、第１の封着材の軟化点以上であ
ることが好ましい。Further, low melting point solder glass is used as the second sealing material. The member to be used may be the same as the first sealing material, but is preferably higher than the softening point of the first sealing material.

【００３４】孔を有する円板に、蓋部材を第３の封着材
で接着する。封着材３には、低融点の金属あるいは低融
点ガラス封着材を用いる。The lid member is bonded to the disc having the holes with a third sealing material. As the sealing material 3, a low melting point metal or a low melting point glass sealing material is used.

【００３５】排気温度を下げるために、第３の封着材の
融点は、３５０℃以下であることが好ましい。In order to lower the exhaust temperature, the third sealing material preferably has a melting point of 350 ° C. or less.

【００３６】低融点の金属として、Ｓｎ、Ｐｂ、Ｓｎ系
の合金、Ｐｂ−Ｓｎ系の合金、Ｂｉ、Ｂｉ−Ｓｎ系の合
金、Ｉｎ、Ｉｎ−Ｓｎ系系の合金、Ｚｎ−Ｓｎ系の合金
などがあげられる。As the low melting point metal, Sn, Pb, Sn-based alloy, Pb-Sn-based alloy, Bi, Bi-Sn-based alloy, In, In-Sn-based alloy, Zn-Sn-based alloy And so on.

【００３７】蓋部材は、第３の封着材よりも高い融点を
有している金属であれば特に限定されないが、銅、アル
ミニウム、鉄、ステンレス、亜鉛などが使用できる。The lid member is not particularly limited as long as it has a higher melting point than the third sealing material, but copper, aluminum, iron, stainless steel, zinc and the like can be used.

【００３８】さらに、円板および／あるいは蓋部材にＡ
ｌ板を用いる場合、該Ａｌ板の表面が、Ａｌの酸化物で
覆われているため、金属を溶融させて接着することは容
易ではないので、第３の封着材に、３５０℃以下の軟化
点の低融点ガラス封着材を用いることが好ましい。Further, the disk and / or the lid member may have A
In the case of using a 1-plate, since the surface of the Al plate is covered with an oxide of Al, it is not easy to melt and bond the metal. It is preferable to use a low-melting glass sealing material having a softening point.

【００３９】通常、３５０℃以下の軟化点の低融点ガラ
スは熱膨張係数が板ガラスと整合しないので、板ガラス
との封着はできないが、本発明の場合、Ａｌ板どうしを
封着すので３５０℃以下の軟化点の低融点ガラスを使用
できる。Usually, a low melting point glass having a softening point of 350 ° C. or less cannot be sealed with a sheet glass because the coefficient of thermal expansion does not match that of the sheet glass. However, in the present invention, 350 ° C. Low melting glass having the following softening point can be used.

【００４０】第３の封着材に用いる、３５０℃以下の軟
化点の低融点ガラス封着材として、次の組成のものが、
耐水性が良いので好ましい。The low-melting-point glass sealing material having a softening point of 350 ° C. or lower used for the third sealing material has the following composition:
It is preferable because of good water resistance.

【００４１】その１つは、弗化リン酸塩系のガラスで、
カチオンに関してはＰｂ：０〜７原子％、Ｓｎ：４２〜
６２原子％、Ｐ：３１〜５８原子％を有し、アニオンに
関してはＦ／Ｏが０．２５〜９の範囲の組成のものであ
る。もう１つはリン酸塩ガラスで、Ｐ2Ｏ5：６０〜８０
ｍｏｌ％、Ｂ2Ｏ3：０〜１０ｍｏｌ％、Ｒ2Ｏ（Ｒ＝Ｌ
ｉ、Ｎａ、Ｋの１種類以上）：１５〜２５ｍｏｌ％、Ｂ
ａＯ：２〜９ｍｏｌ％の組成のものである。One of them is a fluorophosphate-based glass.
Regarding cations, Pb: 0 to 7 atomic%, Sn: 42 to
It has a composition of 62 atomic%, P: 31 to 58 atomic%, and F / O of 0.25 to 9 for anions. The other is phosphate glass, P 2 O 5 : 60-80.
mol%, B 2 O 3: 0~10mol%, R 2 O (R = L
i, Na, K or more): 15 to 25 mol%, B
aO: 2 to 9 mol% composition.

【００４２】また、排気口の周りのがガラス面は凹状に
し、蓋部材が板ガラス板の面から突出しないようにする
と、蓋部材に横から力が加わることが無くなり、強度的
に好ましい形状となり、外観上も好ましい形状となる。When the glass surface around the exhaust port is concave and the cover member does not protrude from the surface of the glass plate, no force is applied to the cover member from the side, and the shape becomes favorable in terms of strength. It also has a favorable appearance.

【００４３】排気ヘッドに設けたヒーターで、蓋部材を
加熱し、第３の封着材を溶融して、蓋部材を排気口に接
着する。この際、第３の封着材は孔を有する円板側、又
は、蓋部材側、あるいは、両方に配置しておく。The lid member is heated by a heater provided in the exhaust head, the third sealing material is melted, and the lid member is bonded to the exhaust port. At this time, the third sealing material is disposed on the side of the disc having the holes, the side of the lid member, or both.

【００４４】ヒーターには、蓋部材を載置し、排気中は
蓋部材が排気口から離れた状態にしておき、所定の圧力
に到達した後、蓋部材を排気口に押し当てることが出来
るように、上下装置を設ける。A lid member is placed on the heater, and the lid member is kept away from the exhaust port during the exhaust, so that the lid member can be pressed against the exhaust port after reaching a predetermined pressure. Is provided with a vertical device.

【００４５】上下装置は、押し棒で機械的に押し出す方
法、モータードライブなどの電気的な方法や流体の圧力
を利用するものなどである。The vertical device is a method of mechanically extruding with a push rod, an electric method such as a motor drive, or a device utilizing the pressure of a fluid.

【００４６】排気ヘッドは排気をするための真空ポンプ
にフレキシブル管で連結させて、位置を自由に変えるこ
とが出来るようにし、固定された複層ガラスセルの排気
口に移動させるか、あるいは排気ヘッドを固定し、排気
口のほうを移動しても良い。The exhaust head is connected to a vacuum pump for exhausting by a flexible pipe so that the position can be freely changed, and the exhaust head is moved to an exhaust port of a fixed double-layer glass cell, or May be fixed, and the exhaust port may be moved.

【００４７】２枚の板ガラス間の密封された低圧空間の
圧力は、１０Ｐａ以下、好ましくは１Ｐａ以下とする。The pressure in the sealed low-pressure space between the two glass sheets is 10 Pa or less, preferably 1 Pa or less.

【００４８】本発明の複層ガラスは、限定されるもので
はないが、一例として、次の手順により作製する。The double glazing of the present invention is produced by, for example, but not limited to, the following procedure.

【００４９】２枚の若干大きさの異なる板ガラスの少な
くともどちらかの板ガラスには、低放射板ガラス、好ま
しくは、５〜３０ｎｍの銀層と、アルミニウム、チタ
ン、亜鉛、タンタル及びニッケルクロム合金から１種類
以上選択した金属を含有する酸化防止層、及び亜鉛、
錫、チタン、インジウム、ビスマス、ジルコニウムの酸
化物の中から１種類以上選択した反射防止金属酸化物層
の３種の皮膜層からなり、ガラス／反射防止金属酸化物
層／銀層／酸化防止層／反射防止金属酸化物層の順、ま
たは、ガラス／反射防止金属酸化物層／酸化防止層／銀
層／酸化防止層／反射防止金属酸化物層の順に各皮膜層
を積層した低放射板ガラスを採用し、もう一方のガラス
には排気口を少なくとも１箇所以上設ける。At least one of the two slightly different sizes of the glass sheet may be a low-emission glass sheet, preferably a silver layer having a thickness of 5 to 30 nm, and one type of aluminum, titanium, zinc, tantalum or nickel-chromium alloy. An antioxidant layer containing the metal selected above, and zinc,
It consists of three kinds of coating layers of an anti-reflection metal oxide layer selected from one or more oxides of tin, titanium, indium, bismuth and zirconium, and is composed of glass / anti-reflection metal oxide layer / silver layer / anti-oxidation layer / Low anti-reflective sheet glass in which each coating layer is laminated in the order of / anti-reflective metal oxide layer or glass / anti-reflective metal oxide layer / anti-oxidation layer / silver layer / anti-oxidation layer / anti-reflection metal oxide layer. The other glass is provided with at least one exhaust port.

【００５０】該排気口は出来るだけコーナー付近に設け
ることが好ましい。さらに、蓋部材の出っ張りを少なく
するために、排気口の周りのガラス面を凹状にすること
が好ましい。It is preferable that the exhaust port is provided as close to the corner as possible. Further, in order to reduce the protrusion of the lid member, it is preferable to make the glass surface around the exhaust port concave.

【００５１】一方の板ガラスを水平に載置した状態で、
複数の点状、線状、または網状のスペーサーを配設し、
他方の板ガラスを前記スペーサー上に載置し、その状態
で低融点ガラス封着材を下側板ガラス上であって上側板
ガラス端面部分に充填してペア化する複層ガラスセルの
周辺端部に低融点ガラス封着材を充填する。With one plate glass placed horizontally,
Arrange multiple point, line, or mesh spacers,
The other sheet glass is placed on the spacer, and in this state, a low melting point glass sealing material is placed on the lower sheet glass and filled in the upper sheet glass end face portion to form a pair at the peripheral end of the double glass cell to be paired. Fill the melting point glass sealing material.

【００５２】また、前述の排気口の周りのガラス面と、
板ガラスと熱膨張係数が近似する金属（例えば４２６合
金）製の孔を有する円板との間を、排気口を塞がないよ
うに低融点ガラス封着材で充填する。Also, the glass surface around the above-mentioned exhaust port,
The space between the plate glass and a disk having a hole made of a metal (for example, 426 alloy) having a similar thermal expansion coefficient is filled with a low-melting glass sealing material so as not to block the exhaust port.

【００５３】その後低融点ガラス封着材の作業温度で加
熱することにより２枚の板ガラスの周縁部全周にわたり
充填された低融点ガラス封着材を加熱溶融する。この
時、周縁部の低融点ガラス封着材は毛細管現象により２
枚の板ガラスの空間部に浸透する。その後冷却すると、
２枚の板ガラスは低融点ガラス封着材により強固に一体
化した複層ガラスを形成することができる。Thereafter, the low-melting-point glass sealing material filled over the entire periphery of the two sheet glasses is heated and melted by heating at the working temperature of the low-melting-point glass sealing material. At this time, the low-melting-point glass sealing material at the peripheral edge is removed by capillary action.
It penetrates into the space of sheet glass. After cooling,
The two glass sheets can form a double-layered glass firmly integrated with the low-melting glass sealing material.

【００５４】そして、前述の排気口に排気ヘッドを押し
つけ、間隙部の排気を行って、間隙部を低圧にする。Then, an exhaust head is pressed against the above-described exhaust port, and the gap is evacuated to reduce the pressure in the gap.

【００５５】その後前記２枚の板ガラスによって形成さ
れる間隙部の気体を排気ヘッドを通して排気し、所定の
圧力、例えば１０Ｐａ以下、好ましくは１Ｐａ以下まで
低下したところで、蓋部材を排気ヘッドに設けたヒータ
ーで加熱後、蓋部材と孔を有する円板間に配設された低
融点金属を溶融し、蓋部材を排気開口部に押し当て該円
板と蓋部材を接着することにより低圧空間を有する複層
ガラスを製造する。Thereafter, the gas in the gap formed by the two sheet glasses is exhausted through an exhaust head, and when the pressure is reduced to a predetermined pressure, for example, 10 Pa or less, preferably 1 Pa or less, a heater provided with a lid member in the exhaust head. After heating in step 2, the low-melting-point metal disposed between the lid member and the disk having holes is melted, and the lid member is pressed against the exhaust opening to bond the disk and the lid member, thereby forming a multi-layer having a low-pressure space. A laminated glass is manufactured.

【００５６】[0056]

【実施例】以下、図面を参照しながら本発明を詳細に説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings.

【００５７】実施例１ 図１は実施例１で作製した複層ガラスである。大ガラス
２と小ガラス３はスペーサー５を介して対向配置して、
低融点ガラス封着材８で封止されており、排気口封止部
１５は図３に示す断面形状である。Example 1 FIG. 1 shows a double glazing produced in Example 1. The large glass 2 and the small glass 3 are opposed to each other via a spacer 5,
It is sealed with a low-melting glass sealing material 8, and the exhaust port sealing portion 15 has a cross-sectional shape shown in FIG.

【００５８】２枚の板ガラスはいずれも厚さ３ｍｍであ
り、大ガラス２の寸法が１０４０ｍｍ×１０４０ｍｍの
フロート板ガラスで、一方の小ガラス３の寸法は１０３
４ｍｍ×１０３４ｍｍのフロート板ガラスである。小ガ
ラス３の１つのコーナー部に頂点から４５度の方向で４
０ｍｍの位置に５ｍｍφの排気口４を設けた。Each of the two glass sheets has a thickness of 3 mm, the size of the large glass 2 is a float glass sheet of 1040 mm × 1040 mm, and the size of one small glass 3 is 103 mm.
4 mm × 1034 mm float glass sheet. 4 at one corner of small glass 3 at 45 degrees from top
An exhaust port 4 having a diameter of 5 mm was provided at a position of 0 mm.

【００５９】大ガラス２は低圧の空間側に垂直放射率
０．１の低放射膜をコーティングしている。The large glass 2 is coated with a low emissivity film having a vertical emissivity of 0.1 on the low pressure space side.

【００６０】まず、小ガラス３を水平に載置し、その上
にＳＵＳ４３０製の０.５mmφ、高さ０.２mmの円柱スペ
ーサー５を配設した。First, the small glass 3 was placed horizontally, and a cylindrical spacer 5 made of SUS430 having a diameter of 0.5 mmφ and a height of 0.2 mm was provided thereon.

【００６１】小ガラス３を大ガラス２に重ね、段差部分
に、ＰｂＯ（８５重量％）、Ｂ2Ｏ3（１３重量％）、Ａ
ｌ2Ｏ3（１重量％）、ＳｉＯ2（１重量％）からなる組
成の鉛ガラス粉末と、フロートガラスの熱膨張係数に近
似させるためのＰｂＴｉＯ3粉末を重量比で６０：４０
になるように混合された軟化点が３８０℃の低融点ガラ
スのフリットに、ブチルカルビトールアセテートとα−
ターピネオールとセルロースを配合したバインダーを加
えてペースト状に調製して得られた低融点ガラス封着材
のペーストを第１の封着材８として、塗布した。The small glass 3 is superimposed on the large glass 2 and PbO (85% by weight), B 2 O 3 (13% by weight), A
A lead glass powder having a composition of l 2 O 3 (1% by weight) and SiO 2 (1% by weight) and a PbTiO 3 powder for approximating the thermal expansion coefficient of float glass are in a weight ratio of 60:40.
Frit of low melting point glass having a softening point of 380 ° C mixed with butyl carbitol acetate and α-
A paste of a low-melting-point glass sealing material obtained by adding a binder containing terpineol and cellulose to prepare a paste was applied as a first sealing material 8.

【００６２】次に排気口の周辺にＰｂＯ（８５重量
％）、Ｂ2Ｏ3（７重量％）、Ａｌ2Ｏ3（１重量％）、Ｓ
ｉＯ2（７重量％）からなる組成の鉛ガラス粉末と、フ
ロートガラスの熱膨張係数に近似させるためのＰｂＴｉ
Ｏ3粉末を重量比で６０：４０になるように混合された
軟化点が４２０℃の低融点ガラスのフリットに、ブチル
カルビトールアセテートとα−ターピネオールとセルロ
ースを配合したビヒクルを加えてペースト状に調製して
得られた低融点ガラス封着材のペーストを第２の封着材
９として塗布し、５ｍｍφの孔径を有する８ｍｍφの４
２６合金製の円板１０を設ける。Next, PbO (85% by weight), B 2 O 3 (7% by weight), Al 2 O 3 (1% by weight), S
lead glass powder having a composition of iO 2 (7% by weight) and PbTi for approximating the thermal expansion coefficient of float glass
A vehicle in which butyl carbitol acetate, α-terpineol and cellulose are mixed is added to a frit of a low-melting glass having a softening point of 420 ° C. in which O 3 powder is mixed at a weight ratio of 60:40 to form a paste. The paste of the low-melting-point glass sealing material obtained and applied was applied as a second sealing material 9 to obtain a paste of 8 mmφ having a hole diameter of 5 mmφ.
A 26 alloy disc 10 is provided.

【００６３】第１の封着材８および第２の封着材９の塗
布後、加熱してまず周辺に充填した第１の封着材８と第
２の封着材９のバインダーを揮散、燃焼消失させ、さら
に作業温度の４７０℃まで加熱してガラスフリットを溶
融させた後、徐冷して大ガラスと小ガラスを強固に一体
化した後、２５０℃の雰囲気温度に保った状態で、図２
に示すように、図示しない真空ポンプなどの排気手段と
連結した排気ヘッド６を排気口４に押しつけ、空間内部
を０．１Ｐａ以下に減圧した。この減圧方式は、図６に
示すような排気管１４を用いた場合に比較し、約１／３
の時間で減圧できた。After the first sealing material 8 and the second sealing material 9 are applied, the binder is heated to first volatilize the binder of the first sealing material 8 and the second sealing material 9 which have been filled in the periphery. After burning and disappearing, and further heating to the working temperature of 470 ° C. to melt the glass frit, gradually cooling to firmly integrate the large glass and the small glass, and keeping the atmosphere temperature at 250 ° C., FIG.
As shown in (2), an exhaust head 6 connected to an exhaust means such as a vacuum pump (not shown) was pressed against the exhaust port 4 to reduce the pressure inside the space to 0.1 Pa or less. This decompression method is about one-third of the case where the exhaust pipe 14 as shown in FIG. 6 is used.
The pressure was reduced in the following time.

【００６４】排気ヘッド６のヒータ１３には、Ｓｎ−Ｚ
ｎ合金からなる低融点金属を第３の封着材１２として設
けた、ステンレス製の蓋部材１１を載置しておき、０．
１Ｐａ以下の圧力になった後、ヒーター１３で蓋部材１
１を加熱し、図示しない電気モーターの上下装置を用い
て蓋部材１１を排気口４に接着させ、排気口４を封止し
た。図３は開口部４を封止した後の開口部４付近の断面
を示したものである。The heater 13 of the exhaust head 6 has Sn-Z
A lid member 11 made of stainless steel and provided with a low-melting-point metal made of an n-alloy as a third sealing material 12 is placed thereon.
After the pressure becomes 1 Pa or less, the lid member 1 is heated by the heater 13.
1 was heated, and the lid member 11 was adhered to the exhaust port 4 using an electric motor up / down device (not shown), and the exhaust port 4 was sealed. FIG. 3 shows a cross section near the opening 4 after the opening 4 is sealed.

【００６５】このようにして製造した低圧複層ガラスの
露点はー７０度以下であり、熱貫流率は０．６Ｗ／ｍ2
℃となり、良好な断熱性のある低圧複層ガラスが得られ
た。The low pressure double glazing thus produced has a dew point of -70 degrees or less and a heat transmission coefficient of 0.6 W / m 2.
° C, and a low-pressure double-glazed glass having good heat insulating properties was obtained.

【００６６】実施例２ 図４に示すような、凹状の排気口４’にした他は、実施
例１と同様にして、低圧複層ガラスを作製した。図５
は、本実施例の排気口封止部１５’の断面形状である。Example 2 A low pressure double glazing was produced in the same manner as in Example 1 except that the exhaust port 4 ′ was concave as shown in FIG. FIG.
Is a cross-sectional shape of the exhaust port sealing portion 15 'of the present embodiment.

【００６７】実施例３ 孔を有する円板８に、５ｍｍφの孔径を有する８ｍｍφ
の厚さ１ｍｍのＡｌの円板を用い、カチオンの原子％が
Ｓｎ４９．５％、Ｐｂ３％、Ｐ４７．５％、アニオンの
原子％がＦ２５％、Ｏ７５％からなる弗化リン酸塩ガラ
スからなる第３の封着材１０を用い、蓋部材１１に厚さ
０．３ｍｍで直径が８ｍｍφのＡｌ板を用いた他は実施
例１と同様にして、低圧複層ガラスを作製した。Example 3 A disc 8 having a hole having a diameter of 8 mmφ having a hole diameter of 5 mm
A 1 mm thick Al disk is used, and is made of fluorinated phosphate glass in which cation atomic% is Sn 49.5%, Pb 3%, P 47.5%, anion atomic% is F 25% and O 75%. A low-pressure double glazing was produced in the same manner as in Example 1 except that a third sealing material 10 was used, and an Al plate having a thickness of 0.3 mm and a diameter of 8 mmφ was used for the lid member 11.

【００６８】実施例４ 第３の封着材１０に、モル％で、Ｐ2Ｏ5７０％、Ｂ2Ｏ3
５％、Ｌｉ2Ｏ１０％、Ｎａ2Ｏ１０％、ＢａＯ５％から
なるリン酸塩ガラスを用いた他は、実施例３と同様にし
て低圧複層ガラスを作製した。Example 4 70% of P 2 O 5 and B 2 O 3 were added to the third sealing material 10 in mol%.
A low-pressure double glazing was produced in the same manner as in Example 3, except that a phosphate glass composed of 5%, 10% of Li 2 O, 10% of Na 2 O, and 5% of BaO was used.

【００６９】実施例２，実施例３および実施例４におい
て、低圧にするために要した時間、到達できた真空度、
さらには作製した低圧複層ガラスの熱貫流率は、実施例
１とほとんど同じ結果が得られた。In Examples 2, 3 and 4, the time required for lowering the pressure, the degree of vacuum attained,
Further, the heat transmission coefficient of the produced low-pressure double-glazed glass was almost the same as that of Example 1.

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

【図１】本発明の低圧複層ガラスの平面図。FIG. 1 is a plan view of a low-pressure double glazing of the present invention.

【図２】実施例１の排気ヘッドと排気口を示す断面図。FIG. 2 is a cross-sectional view illustrating an exhaust head and an exhaust port according to the first embodiment.

【図３】実施例１の低圧複層ガラスの排気口封止部の断
面図。FIG. 3 is a cross-sectional view of an exhaust port sealing portion of the low pressure double glazing of Example 1.

【図４】実施例２の排気ヘッドと排気口を示す断面図。FIG. 4 is a cross-sectional view illustrating an exhaust head and an exhaust port according to a second embodiment.

【図５】実施例２の低圧複層ガラスの排気口封止部の断
面図。FIG. 5 is a cross-sectional view of an exhaust port sealing portion of the low pressure double glazing of Example 2.

【図６】ガラス管を用いて排気する排気口を示す断面
図。FIG. 6 is a cross-sectional view illustrating an exhaust port that exhausts using a glass tube.

【符号の説明】[Explanation of symbols]

１ 低圧複層ガラス ２ 大ガラス（低放射ガラス） ３ 小ガラス ４、４’ 排気口 ５ スペーサー ６、６’ 排気ヘッド ７ オーリング ８ 第１の封着材（低融点ガラス封着材） ９ 第２の封着材（低融点ガラス封着材） １０ 孔を有す円板 １１ 蓋部材 １２ 第３の封着材（低融点金属または低融点ガラ
ス封着材） １３ ヒーター １４ 排気管 １５ 排気口封止部 １６ 排気ヘッドDESCRIPTION OF SYMBOLS 1 Low-pressure double glass 2 Large glass (Low radiation glass) 3 Small glass 4, 4 'Exhaust port 5 Spacer 6, 6' Exhaust head 7 O-ring 8 1st sealing material (low melting glass sealing material) 9th 2 sealing material (low-melting-point glass sealing material) 10 disk having holes 11 lid member 12 third sealing material (low-melting-point metal or low-melting-point glass sealing material) 13 heater 14 exhaust pipe 15 exhaust port Sealing part 16 Exhaust head

フロントページの続き Ｆターム(参考） 2E016 AA01 AA05 AA06 AA07 BA01 CA01 CB01 CC02 EA01 GA01 4G061 AA20 BA01 CD24 4G062 AA08 AA09 BB09 CC10 DA01 DB01 DC01 DC02 DC03 DD05 DD06 DD07 DE01 DF01 DF02 DF03 EA01 EA02 EA03 EA04 EB01 EB02 EB03 EB04 EC01 EC02 EC03 EC04 ED01 EE01 EF01 EG03 FA01 FB01 FC01 FD01 FE05 FE06 FF01 FG01 FH01 FJ01 FK01 FL01 GA01 GB01 GC01 GD01 GE02 HH01 HH03 HH05 HH07 HH09 HH11 HH13 HH15 HH17 HH20 JJ01 JJ03 JJ05 JJ07 JJ10 KK01 KK03 KK05 KK07 KK10 MM10 NN32 Continued on the front page F-term (reference) 2E016 AA01 AA05 AA06 AA07 BA01 CA01 CB01 CC02 EA01 GA01 4G061 AA20 BA01 CD24 4G062 AA08 AA09 BB09 CC10 DA01 DB01 DC01 DC02 DC03 DD05 DD06 DD07 DE01 DF01 DF02 EA03 EB03 EA03 EA03 EA03 EA03 EA03 EA03 EA03 EA03 EA03 EA03 EA03 EC02 EC03 EC04 ED01 EE01 EF01 EG03 FA01 FB01 FC01 FD01 FE05 FE06 FF01 FG01 FH01 FJ01 FK01 FL01 GA01 GB01 GC01 GD01 GE02 HH01 HH03 HH05 HH07 HH09 HH11 HH13 HH15 HH17 KK01 JJ01 KK01 JJ01 KK01 JJ01 KK

Claims (10)

【特許請求の範囲】[Claims] 【請求項１】２枚の板ガラスを所定の間隔で隔置し、こ
の間隔を保持する点状、線状または網状スペーサーを配
設するとともに、このパネルの周縁端部を第１の封着材
で密封して、低圧空間が形成された低圧複層ガラスにお
いて、低圧空間とするために設けた排気口に孔を有する
円板が第２の封着材で固定され、該円板に蓋部材が第３
の封着材で固定されていることを特徴とする低圧複層ガ
ラス。1. A two-plate glass is spaced at a predetermined interval, a dot-like, linear or net-like spacer for maintaining this interval is arranged, and a peripheral edge of the panel is sealed with a first sealing material. In the low-pressure double-layer glass in which a low-pressure space is formed by sealing with a disk, a disk having a hole at an exhaust port provided for the low-pressure space is fixed with a second sealing material, and a lid member is attached to the disk. Is the third
A low-pressure double glazing characterized by being fixed with a sealing material. 【請求項２】円板の熱膨張係数が板ガラスの熱膨張係数
の７０〜１３０％の範囲にある金属であることを特徴と
する請求項１に記載の低圧複層ガラス。2. The low-pressure double glazing according to claim 1, wherein the metal has a coefficient of thermal expansion of 70 to 130% of a coefficient of thermal expansion of the glass sheet. 【請求項３】円板がＡｌ板であることを特徴とする請求
項１に記載の低圧複層ガラス。3. The low pressure double glazing according to claim 1, wherein the disk is an Al plate. 【請求項４】蓋部材が第３の封着材よりも高い融点の金
属であることを特徴とする請求項１乃至請求項３のいず
れかに記載の低圧複層ガラス。4. The low pressure double glazing according to claim 1, wherein the lid member is made of a metal having a melting point higher than that of the third sealing material. 【請求項５】蓋部材がＡｌ板であることを特徴とする請
求項４に記載の低圧複層ガラス。5. The low pressure double glazing according to claim 4, wherein the lid member is an Al plate. 【請求項６】第１と第２の封着材が低融点ガラス封着
材、第３の封着材が３５０℃以下の融点の金属であるこ
とを特徴とする請求項１乃至請求項５のいずれかに記載
の低圧複層ガラス。6. The method according to claim 1, wherein the first and second sealing materials are low-melting glass sealing materials, and the third sealing material is a metal having a melting point of 350 ° C. or less. A low-pressure double-glazed glass according to any one of the above. 【請求項７】第３の封着材が３５０℃以下の軟化点の低
融点ガラス封着材であることを特徴とする請求項１乃至
請求項５のいずれかに記載の低圧複層ガラス。7. The low pressure double glazing according to claim 1, wherein the third sealing material is a low melting point glass sealing material having a softening point of 350 ° C. or lower. 【請求項８】低融点ガラス封着材が、弗化リン酸塩系の
ガラスで、カチオンに関してはＰｂ：０〜７原子％、Ｓ
ｎ：４２〜６２原子％、Ｐ：３１〜５８原子％を有し、
アニオンに関してはＦ／Ｏが０．２５〜９の範囲にある
組成であることを特徴とする請求項７に記載の低圧複層
ガラス。8. The low-melting-point glass sealing material is a fluorophosphate-based glass.
n: 42 to 62 atomic%, P: 31 to 58 atomic%,
The low pressure double glazing according to claim 7, wherein the composition has an F / O of 0.25 to 9 for anions. 【請求項９】低融点ガラス封着材が、リン酸塩系のガラ
スで、Ｐ2Ｏ5：６０〜８０ｍｏｌ％、Ｂ2Ｏ3：０〜１０
ｍｏｌ％、Ｒ2Ｏ（Ｒ＝Ｌｉ、Ｎａ、Ｋの１種類以
上）：１５〜２５ｍｏｌ％、ＢａＯ：２〜９ｍｏｌ％で
あることを特徴とする請求項７に記載の低圧複層ガラ
ス。9. The low-melting glass sealing material is a phosphate glass, P 2 O 5 : 60-80 mol%, B 2 O 3 : 0-10.
mol%, R 2 O (R = Li, Na, 1 or more K): 15~25mol%, BaO: low multiple glazing according to claim 7, characterized in that the 2~9mol%. 【請求項１０】ガラスに設けた排気口の周りのガラス面
を凹状にしたことを特徴とする請求項１乃至請求項９の
いずれかに記載の低圧複層ガラス。10. The low-pressure double glazing according to claim 1, wherein the glass surface around the exhaust port provided in the glass is concave.
JP2000302615A 2000-04-27 2000-10-02 Low pressure double glazing Pending JP2002012455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000302615A JP2002012455A (en) 2000-04-27 2000-10-02 Low pressure double glazing

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000127391 2000-04-27
JP2000-127391 2000-04-27
JP2000302615A JP2002012455A (en) 2000-04-27 2000-10-02 Low pressure double glazing

Publications (1)

Publication Number Publication Date
JP2002012455A true JP2002012455A (en) 2002-01-15

Family

ID=26590951

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
JP (1) JP2002012455A (en)

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