JPS6120490B2 - - Google Patents
Info
- Publication number
- JPS6120490B2 JPS6120490B2 JP9661178A JP9661178A JPS6120490B2 JP S6120490 B2 JPS6120490 B2 JP S6120490B2 JP 9661178 A JP9661178 A JP 9661178A JP 9661178 A JP9661178 A JP 9661178A JP S6120490 B2 JPS6120490 B2 JP S6120490B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- group
- phase separation
- sio
- necessary
- 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
- 239000011521 glass Substances 0.000 claims description 32
- 238000005191 phase separation Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 238000010828 elution Methods 0.000 claims description 5
- 238000010306 acid treatment Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 239000005388 borosilicate glass Substances 0.000 claims description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910008572 Li2O—B2O3-SiO2 Inorganic materials 0.000 claims description 2
- 229910008585 Li2O—B2O3—SiO2 Inorganic materials 0.000 claims description 2
- -1 and if necessary Inorganic materials 0.000 claims description 2
- 238000010304 firing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000009702 powder compression Methods 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Glass Compositions (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
【発明の詳細な説明】
本発明は、管球類の製作に利用するガラス成形
体の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a glass molded body used for manufacturing tubes.
発光部を取り囲むガラスが石英ガラスのような
石英製管球類の気密封止部の構造には、普通、大
別して「金属箔シール方式」（例えば特えば特公
昭35−8445）と「ロツドシール方式」（例えば実
公昭36−22231）とが知られている。 The structure of the airtight sealing part of quartz tubes, where the glass surrounding the light emitting part is quartz glass, is generally divided into two types: the metal foil seal method (for example, the Special Publication Publication No. 35-8445) and the rod seal method. ” (for example, Jitsukō 36-22231) is known.
前者は、大電流使用の管球類を得るには、金属
箔の電気容量からくる制限があるだけで、管球類
の機械化生産に適しているので、小電流使用の管
球で多用されている。後者は、大電流使用の管球
類に利用されるシール方式であつて、必要上種々
の改良が加えられて現在も使用されているが、シ
ール近傍に必ず「段継ぎガラス部」が設けられて
いる。 The former method is suitable for mechanized production of tubes, as it is only limited by the capacitance of the metal foil in order to obtain tubes that use large currents, and is therefore often used for tubes that use small currents. There is. The latter is a sealing method used for tubes that use large currents, and is still in use today with various improvements made as necessary, but it always requires a "step joint glass section" near the seal. ing.
この「段継ぎガラス部」は殆ど「手加工」に頼
る作業部分が多く、品質のバラツキ、著しい生産
コストアツプの原因となり、ロツドシール方式を
採用する石英製管球類の最大の弱点とされてい
る。 This ``step-jointed glass section'' is mostly a work part that relies on ``hand-processing'', which causes variations in quality and a significant increase in production costs, and is considered the biggest weakness of quartz tubes that use the rod seal method.
また、この「段継ぎガラス部」に対応する部分
を形成するために、ガラス材料の成分組成が異る
混合粉末を複数種類用意し、この混合粉末を順次
圧縮用型に充填して熱膨張係数が順次異るガラス
成形体を形成することが知られている。しかし、
この方法も成分組成が異る混合粉末を複数種類用
意するのに手間を要し、生産性が悪いという問題
点がある。 In addition, in order to form the part corresponding to this "step joint glass part", we prepared multiple types of mixed powders with different glass material compositions, and sequentially filled the mixed powders into compression molds to increase the coefficient of thermal expansion. It is known that different glass molded bodies can be formed in sequence. but,
This method also has the problem of poor productivity because it takes time and effort to prepare multiple types of mixed powders with different component compositions.
そこで本発明は、従来の段継ぎガラス部に代つ
て利用できるようなガラス成形体を簡単に製造で
きる方法を提供することを目的とし、その特徴と
するところは、
Na2O−B2O3−SiO2、もしくはK2O−B2O3−
SiO2、もしくはLi2O−B2O3−SiO2を主成分と
し、必要に応じて添加物としてAl2O3もしくは
CaO、もしくはBaO、もしくはMgOを加えた硼
硅酸ガラスをガラス素材として、
(イ) ガラス塊を粉砕してから分相処理するかもし
くは分相処理してから粉砕する第１の工程と、
(ロ) 酸処理によつて、分相の溶出量の程度の異な
つた複数のグループを作り、必要に応じて各グ
ループを洗滌乾燥して仮焼して収縮させ、再粉
砕する第２の工程と、
(ハ) 各グループを程度の異なつた順に、成形容器
に充填して、焼成する第３の工程と、
を含むことにある。 Therefore, an object of the present invention is to provide a method for easily producing a glass molded body that can be used in place of the conventional step-jointed glass part, and its characteristics are as follows: Na 2 O−B 2 O 3 −SiO 2 or K 2 O−B 2 O 3 −
The main component is SiO 2 or Li 2 O−B 2 O 3 −SiO 2 , and if necessary, Al 2 O 3 or
Using borosilicate glass to which CaO, BaO, or MgO is added as a glass material, (a) a first step of pulverizing the glass lump and then subjecting it to phase separation treatment, or pulverizing it after phase separation treatment; b) A second step in which multiple groups with different degrees of phase separation elution are created by acid treatment, each group is washed and dried as necessary, calcined to shrink, and re-pulverized. , (c) a third step of filling each group into a molded container in order of varying degree and firing.
以下、図面も参照しながら発明の詳細を説明す
る。 Hereinafter, details of the invention will be explained with reference to the drawings.
原料として、炭酸ナトリウム、硼酸、シリカ等
を、ガラス化した時の膨脹率が40×10-7（ｍ／
ｍ／℃）程度になるように秤量、粉砕、混合す
る。上記膨脹率の場合、ガラス組成としては、重
量％で、大体、酸化ナトリウム５％、酸化硼素32
％、シリカ63％で、これらのことは、昭和38年に
朝倉書店から出版された「ガラス工学ハンドブツ
ク」を参照すると詳しく知ることができる。 When sodium carbonate, boric acid, silica, etc. are vitrified as raw materials, the expansion coefficient is 40×10 -7 (m/
Weigh, crush, and mix to approximately 200 m/°C. In the case of the above expansion rate, the glass composition is approximately 5% sodium oxide and 32% boron oxide by weight.
% and 63% silica.You can learn more about these things by referring to the ``Glass Engineering Handbook'' published by Asakura Shoten in 1963.
混合された原料はルツボに入れて熔融する。熔
融時間はしこみ量にも依存するが、均一にするた
めには少なくとも３〜４時間は必要である。これ
をルツボから取り出し急冷してガラス化する。 The mixed raw materials are put into a crucible and melted. Although the melting time depends on the amount of infiltration, at least 3 to 4 hours are required to make it uniform. This is removed from the crucible and rapidly cooled to vitrify it.
このガラス化にあたつては、急冷に代えて分相
処理を兼ねさせて徐冷しても良いし、急冷後、
600〜650℃約１〜２時間の分相処理をしても良
い。いずれもこの段階では、ガラスは「ガラス
塊」となつているので、１mm以下の大きさに粉砕
する。これは、酸処理によつて、分相を溶出する
のに都合のよいようにするためであり、３規定塩
酸、もしくは５規定硫酸で容易に分相を溶出する
ことができる。 In this vitrification, instead of rapid cooling, slow cooling may also be carried out with phase separation treatment, or after rapid cooling,
Phase separation treatment may be performed at 600-650°C for about 1-2 hours. At this stage, the glass is in the form of glass lumps, so it is crushed to a size of 1 mm or less. This is to make it convenient to elute the separated phase by acid treatment, and the separated phase can be easily eluted with 3N hydrochloric acid or 5N sulfuric acid.
こゝで、分相を溶出するにあたつては、上記粉
砕分相処理の終了したガラス粉を５グループに分
けて、夫々酸処理時間を、第１グループは０（未
処理）、第２グループは６、第３グループは12、
第４グループは18、第５グループは24時間処理
し、分相溶出程度の異なるものを作る。未処理の
ものを含めて、５グループである。この５グルー
プのガラスは、夫々、大体、第１グループ（未処
理）…40×10-7、第２グループ…32×10-7、第３
グループ…25×10-7、第４グループ…17×10-7、
第５グループ…８×10-7の膨脹率のものが得られ
る。 To elute the phase separation, the glass powder that has been subjected to the pulverized phase separation treatment is divided into five groups, and the acid treatment time for each group is set to 0 (untreated) for the first group and 0 (untreated) for the second group. Group 6, third group 12,
The fourth group was treated for 18 hours, and the fifth group was treated for 24 hours to create samples with different degrees of phase separation elution. There are 5 groups including untreated ones. These five groups of glasses are approximately 40×10 -7 in the first group (untreated), 32×10 -7 in the second group, and 32×10 -7 in the third group, respectively.
Group...25× 10-7 , 4th group...17× 10-7 ,
5th group...Those with an expansion rate of 8×10 -7 are obtained.
上記の５グループの内、未処理以外の４グルー
プに属するガラス粉は、分相溶出後に残る微細な
穴をもつた多孔質体となつており、この穴に酸液
などが残留しているので水洗処理、乾燥処理をす
る。 Among the five groups mentioned above, glass powder belonging to the four groups other than untreated is a porous material with fine holes that remain after phase separation and elution, and acid solution remains in these holes. Wash with water and dry.
多孔質体となつたガラス粉は、後にパイプ、容
器として成形しようとすると収縮現象が発生する
ので、必要に応じ、各グループ毎に仮焼結、再粉
砕などして、成形用素材として適したものとして
おくと良い。最大、体積にして20〜40％程度収縮
することもある。この仮焼結温度は1100℃ぐらい
で良い。 Glass powder that has become a porous material will shrink when it is later molded into pipes or containers, so if necessary, each group is pre-sintered and re-pulverized to create a material suitable for molding. It's good to keep it. At maximum, the volume may shrink by 20 to 40%. This temporary sintering temperature may be about 1100°C.
以上の工程を経た５グループのガラス粉を、第
１図に示すような成形容器に分相溶出程度の差の
順序で充填していく。 The five groups of glass powders that have undergone the above steps are filled into a molded container as shown in FIG. 1 in the order of the difference in phase separation and elution degree.
第１図は、充填されたガラス粉の説明図であつ
て、１は円筒凹形容器、２は円柱状凸形容器、３
はパイプ状粉末圧縮蓋、４ａは第１グループ、４
ｂは第２グループ、４ｃは第３グループ、４ｄは
第４グループ、４ｅは第５グループのガラス粉を
夫々示す。容器類はグラフアイト製で良く、これ
を1200℃程度で焼成すると、第２図に示すような
パイプ状の成形体が得られる。 FIG. 1 is an explanatory diagram of filled glass powder, in which 1 is a cylindrical concave container, 2 is a cylindrical convex container, and 3 is a cylindrical convex container.
is a pipe-shaped powder compression lid, 4a is the first group, 4
b represents the second group, 4c represents the third group, 4d represents the fourth group, and 4e represents the fifth group, respectively. The containers may be made of graphite, and when fired at about 1200°C, a pipe-shaped molded body as shown in FIG. 2 is obtained.
第２図において、端部５は、第１グループのガ
ラス粉によつて作られているので、膨脹率は大体
40×10-7程度、端部６は、第５グループのガラス
粉によつて作られているので、膨脹率は大体８×
10-7程度である。中間部７は、段階的に膨脹率が
変化していて、成形体は丁度、従来技術で言えば
「段継ぎガラス部」に対応する。 In Figure 2, the end portion 5 is made of glass powder of the first group, so the expansion rate is approximately
Since the end portion 6 is made of glass powder of the 5th group, the expansion rate is approximately 8×
It is about 10 -7 . The expansion rate of the intermediate section 7 changes stepwise, and the molded body corresponds to a "step-jointed glass section" in the conventional art.
上記実施例からも理解できるように、上記成形
体の場合、キセノンシヨートアークランプにおけ
る気密封止において、膨脹率46×10-7のタングス
テン導入棒と膨脹率５×10-7の石英製バルブとの
中間段継ぎガラス部として利用できる。 As can be understood from the above examples, in the case of the above molded body, a tungsten introduction rod with an expansion rate of 46 x 10 -7 and a quartz valve with an expansion rate of 5 x 10 -7 were used for airtight sealing in a xenon shot arc lamp. It can be used as a middle step joint glass section.
こゝにおいて、グループ数を増加することによ
つて、結局、中間部７の膨脹率が実質上連続的に
変化する成形体が得られること、しかも、それが
機械化生産で作れることなどの重要な利点があり
従来の品質のバラツキやコストアツプを大巾に解
消できる。 In this case, by increasing the number of groups, it is possible to obtain a molded product in which the expansion rate of the intermediate portion 7 changes substantially continuously, and moreover, it is important that it can be produced by mechanized production. It has the advantage of being able to largely eliminate the conventional quality variations and cost increases.
前記実施例は、Na2O−B2O3−SiO2系ガラスを
示したが、基本的には、硼硅酸ガラスから、分相
処理を利用して、高硅酸ガラスを得る高硅酸ガラ
ス製造法を利用するものであつて、Na2O−B2O3
−SiO2系ガラス以外にも、特許請求の範囲に明
示した通り、他の組成でも良い。 Although the above examples showed Na 2 O-B 2 O 3 -SiO 2 glass, basically high-silicate glass is obtained from borosilicate glass by phase separation treatment. It uses the acid glass manufacturing method, and Na 2 O−B 2 O 3
In addition to -SiO 2 -based glass, other compositions may be used as specified in the claims.
第１図は成形容器に充填されたガラス粉の説明
図、第２図は成形体の説明図である。
図において、４ａ，４ｂ，４ｃ，４ｄ，４ｅは
夫々第１，第２，第３，第４，第５グループのガ
ラス粉を示す。
FIG. 1 is an explanatory diagram of glass powder filled in a molded container, and FIG. 2 is an explanatory diagram of a molded body. In the figure, 4a, 4b, 4c, 4d, and 4e indicate the first, second, third, fourth, and fifth groups of glass powder, respectively.
Claims (1)
SiO2、もしくはLi2O−B2O3−SiO2を主成分と
し、必要に応じて添加物としてAl2O3もしくは
CaO、もしくはBaO、もしくはMgOを加えた硼
硅酸ガラスをガラス素材として、 (イ) ガラス塊を粉砕してから分相処理するかもし
くは分相処理してから粉砕する第１の工程と、 (ロ) 酸処理によつて、分相の溶出量の程度の異な
つた複数のグループを作り、必要に応じて各グ
ループを洗滌乾燥して仮焼して収縮させ、再粉
砕する第２の工程と、 (ハ) 各グループを程度の異なつた順に、成形容器
に充填して、焼成する第３の工程と、 を含むことを特徴とするガラス成形体の製造方
法。[Claims] 1 NaO−B 2 O 3 −SiO 2 or K 2 O−B 2 O 3 −
The main component is SiO 2 or Li 2 O−B 2 O 3 −SiO 2 , and if necessary, Al 2 O 3 or
Using borosilicate glass to which CaO, BaO, or MgO is added as a glass material, (a) a first step of pulverizing the glass lump and then subjecting it to phase separation treatment, or pulverizing it after phase separation treatment; b) A second step in which multiple groups with different degrees of phase separation elution are created by acid treatment, each group is washed and dried as necessary, calcined to shrink, and re-pulverized. , (c) a third step of filling a molding container with each group in order of varying degree and firing them. A method for manufacturing a glass molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9661178A JPS5527803A (en) | 1978-08-10 | 1978-08-10 | Molded glass and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9661178A JPS5527803A (en) | 1978-08-10 | 1978-08-10 | Molded glass and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5527803A JPS5527803A (en) | 1980-02-28 |
| JPS6120490B2 true JPS6120490B2 (en) | 1986-05-22 |
Family
ID=14169650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9661178A Granted JPS5527803A (en) | 1978-08-10 | 1978-08-10 | Molded glass and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5527803A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3665510B2 (en) * | 1999-06-28 | 2005-06-29 | 株式会社小糸製作所 | Arc tube for discharge lamp equipment |
-
1978
- 1978-08-10 JP JP9661178A patent/JPS5527803A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5527803A (en) | 1980-02-28 |
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