JPH0383826A - Production of fine glass sphere - Google Patents
Production of fine glass sphereInfo
- Publication number
- JPH0383826A JPH0383826A JP21887789A JP21887789A JPH0383826A JP H0383826 A JPH0383826 A JP H0383826A JP 21887789 A JP21887789 A JP 21887789A JP 21887789 A JP21887789 A JP 21887789A JP H0383826 A JPH0383826 A JP H0383826A
- Authority
- JP
- Japan
- Prior art keywords
- jig
- alloy
- groove
- glass
- section
- 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
- 239000011521 glass Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000956 alloy Substances 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000002344 surface layer Substances 0.000 claims abstract description 5
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 claims description 9
- 229910018949 PtAu Inorganic materials 0.000 claims description 6
- 239000000843 powder Substances 0.000 abstract description 4
- 229910001020 Au alloy Inorganic materials 0.000 abstract description 2
- 229910018885 Pt—Au Inorganic materials 0.000 abstract 2
- 238000000034 method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 230000005693 optoelectronics Effects 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
- C03B19/10—Forming beads
- C03B19/1005—Forming solid beads
- C03B19/101—Forming solid beads by casting molten glass into a mould or onto a wire
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、特に球径0.5mm前後のオプトエレクI・
ロニクス用微小ガラス球の製造方法に関する。Detailed Description of the Invention (Industrial Application Field) The present invention is particularly applicable to optoelectronic I.
This invention relates to a method for manufacturing micro glass spheres for ronics.
(従来技術と課題)
従来、上記微小ガラス球を作る方法の一つとして、半球
状凹部を有したPtなとでできた治具に粉末状ガラスを
入れ、加熱して溶融状態とした後、冷却凝固する時の表
面張力にて球状化としていた。(Prior Art and Problems) Conventionally, as one method for making the above-mentioned micro glass spheres, powdered glass is placed in a jig made of Pt or the like having a hemispherical recess, heated to melt, and then It was spheroidized by the surface tension during cooling and solidification.
しかしこの方法においては、治具からはがれにくかった
り、ガス、空気の巻き込み、残留の為、巣が残ったりし
て十分な真球が得られないという課題があった。However, this method has problems in that it is difficult to peel off from the jig, and gas and air entrainment and residual cavities remain, making it impossible to obtain a sufficient true sphere.
(発明の目的)
本発明は、巣のない真円度のいい微小ガラス球を精度良
く安定して作る方法を提供しようとするものである。(Objective of the Invention) The present invention aims to provide a method for accurately and stably producing micro glass spheres with good roundness and no cavities.
(発明の構成)
上記課題を解決する為の本発明の技術的手段は、微小ガ
ラス球を製造する方法において、少なくとも表面層がA
u3〜10重量%を含むPtAu合金又はPtRhAu
合金製の断面円弧状溝を有した治具を傾斜させ、かつ治
具の傾斜の上から下へ温度勾配をもたせ、その上端部に
て粉末状ガラスを投入することを特徴とするものである
。(Structure of the Invention) The technical means of the present invention for solving the above problems is a method for manufacturing micro glass spheres in which at least the surface layer is A.
PtAu alloy containing u3-10% by weight or PtRhAu
The method is characterized in that a jig made of an alloy having an arc-shaped groove in cross section is tilted, a temperature gradient is created from the top to the bottom of the slope of the jig, and powdered glass is introduced at the upper end of the jig. .
(作用)
上記のように構成された本発明によれば、粉末状ガラス
が溶融した後、自重と傾斜と温度差により、断面円弧状
溝内を回転しながら徐々に凝固するとともに球状化する
ものである。(Function) According to the present invention configured as described above, after the powdered glass is melted, it gradually solidifies and becomes spheroidized while rotating in the groove having an arcuate cross section due to its own weight, inclination, and temperature difference. It is.
この際、溝形状が断面円弧状であり、また少なくとも表
面層がPtAu合金又はPtRhAu合金であることに
より適度のぬれ性が得られ治具能れが良く、表面張力が
効果的に作用し、また回転とあいまって真球が得られる
ものである。またPtAu合金又はPtRhAu合金の
Au含有量は3〜lO重量%が好ましく、10重量%を
超えるとぬれ性が良すぎる為偏平状となり真球が得られ
ず、また合金材料が脆くなり加工が困難となり、3重量
%未満だとぬれ性が減る方向に改善されない為、治具能
れが悪く回転と凝固のバランスがとれず真球が得られな
いものである。また治具の断面円弧状溝の長さは、溶融
ガラスが凝固する長さがあれば良く、その溝の深さはガ
ラス球の半径以上が良いものである。さらに温度勾配は
、ガラス溶融状態から凝固範囲であればよ< 1300
°C〜1100℃位が好ましく、最終的には室温とする
ものである。In this case, since the groove shape is arcuate in cross section and at least the surface layer is made of PtAu alloy or PtRhAu alloy, appropriate wettability is obtained, jig performance is good, surface tension acts effectively, and Combined with rotation, a perfect sphere can be obtained. In addition, the Au content of the PtAu alloy or PtRhAu alloy is preferably 3 to 10% by weight; if it exceeds 10% by weight, the wettability is too good and it becomes flat, making it impossible to obtain a true sphere, and the alloy material becomes brittle and difficult to process. If it is less than 3% by weight, the wettability will not be improved in the direction of decrease, resulting in poor jig performance and an imbalance between rotation and solidification, making it impossible to obtain true spheres. Further, the length of the groove having an arcuate cross section of the jig is sufficient as long as it is long enough to solidify the molten glass, and the depth of the groove is preferably equal to or greater than the radius of the glass bulb. Furthermore, the temperature gradient should be in the range from the glass melting state to solidification < 1300
The temperature is preferably from 1100°C to 1100°C, and the final temperature is room temperature.
(実施例) 以下に実施例と従来例について説明する。(Example) Examples and conventional examples will be described below.
まず実施例として治具材質PtAu5重量%、断面半円
状溝の深さ0.5mm、半円状溝幅0,5mm、傾斜角
度30度、長さ1.3m、上部温度1300°C1下部
温度800 ’Cの装置にて、ガラス材質Eガラスを粉
末状態にて治具上端投入部分より投入して外径0.5m
mの微小ガラス球を連続的に100ケ得た。First, as an example, the jig material is PtAu 5% by weight, the depth of the semicircular groove in cross section is 0.5 mm, the width of the semicircular groove is 0.5 mm, the inclination angle is 30 degrees, the length is 1.3 m, the upper temperature is 1300°C, the lower temperature is In a device at 800'C, the glass material E glass was introduced in powder form from the upper end of the jig, and the outer diameter was 0.5 m.
100 micro glass spheres of m diameter were continuously obtained.
一方、従来例として材質Ptにて径0.5mm、深さ0
.5mmの半球状凹部を有した治具にてガラス材質Eガ
ラスを粉末状態にて1300’Cの電気炉にて溶融後、
冷却凝固させ微小ガラス球を100ケ得た。On the other hand, as a conventional example, the material is Pt, the diameter is 0.5 mm, and the depth is 0.
.. After melting the glass material E glass in a powder state in a 1300'C electric furnace using a jig with a 5mm hemispherical recess,
The mixture was cooled and solidified to obtain 100 micro glass spheres.
然して品質検査を行ったところ下記のような結果を得た
。However, when we conducted a quality inspection, we obtained the following results.
なお従来例の不具合品の内訳は真球となってないもの、
部分的凹状や巣による異形であったり、治具から離れな
かったものである。In addition, the breakdown of defective products in the conventional example is those that are not perfectly spherical,
It may be partially concave or irregularly shaped due to a nest, or it may not have separated from the jig.
尚、上記実施例ではPtAu合金からなる治具について
述べたが、本発明はこれに限るものてはなく、PtRh
Au合金(Rhの組成としては好ましくは5〜15重量
%)でも良いものである。In the above embodiment, a jig made of PtAu alloy was described, but the present invention is not limited to this.
An Au alloy (Rh composition preferably 5 to 15% by weight) may also be used.
(発明の効果)
以上のように本発明の微小ガラス球の製造方法によれば
、巣のない、真球度の良い、微小ガラス球を精度良(安
定して作ることができるという優れた効果を有するもの
である。(Effects of the Invention) As described above, the method for manufacturing micro glass spheres of the present invention has the excellent effect of being able to produce micro glass spheres with good accuracy (stablely) without cavities and with good sphericity. It has the following.
Claims (1)
層がAu3〜10重量%を含むPtAu合金又はPtR
hAu合金製の断面円弧状溝を有した治具を傾斜させ且
つ治具の傾斜の上から下へ温度勾配をもたせ、その上端
部にて粉末ガラスを投入することを特徴とする微小ガラ
ス球の製造方法。1. In manufacturing micro glass spheres, at least the surface layer contains a PtAu alloy or PtR containing 3 to 10% by weight of Au.
A micro glass sphere characterized in that a jig made of an hAu alloy having an arcuate groove in cross section is tilted, a temperature gradient is created from the top to the bottom of the slope of the jig, and powdered glass is introduced at the upper end of the jig. Production method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21887789A JPH0383826A (en) | 1989-08-25 | 1989-08-25 | Production of fine glass sphere |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21887789A JPH0383826A (en) | 1989-08-25 | 1989-08-25 | Production of fine glass sphere |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0383826A true JPH0383826A (en) | 1991-04-09 |
Family
ID=16726709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21887789A Pending JPH0383826A (en) | 1989-08-25 | 1989-08-25 | Production of fine glass sphere |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0383826A (en) |
-
1989
- 1989-08-25 JP JP21887789A patent/JPH0383826A/en active Pending
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