JPH0777970B2 - Glass material holding and transportation jig - Google Patents
Glass material holding and transportation jigInfo
- Publication number
- JPH0777970B2 JPH0777970B2 JP2262275A JP26227590A JPH0777970B2 JP H0777970 B2 JPH0777970 B2 JP H0777970B2 JP 2262275 A JP2262275 A JP 2262275A JP 26227590 A JP26227590 A JP 26227590A JP H0777970 B2 JPH0777970 B2 JP H0777970B2
- Authority
- JP
- Japan
- Prior art keywords
- glass material
- jig
- coating layer
- holding
- glass
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、加熱，軟化させたガラス素材を所望の光学素
子に対応する形状の一対の型により押圧成形することに
より光学素子を得る方法において、ガラス素材を高温状
態で保持，搬送する場合に使用するガラス素材の保持，
搬送治具に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for obtaining an optical element by press-molding a heated and softened glass material with a pair of molds having a shape corresponding to a desired optical element. , Holds glass materials used when holding and transporting glass materials at high temperatures,
Concerning the transportation jig.
従来、特開平１−148715号公報には、ガラス素材を加
熱，軟化させ、所望の光学素子に対応した一対の型によ
り押圧成形するにあたり、ガイド部材に案内された一対
の型間に溶融ガラスを流し込み、押圧成形して光学素子
を得る方法が開示されている。この方法において、ガイ
ド部材は、ガラス素材を高温状態で保持するガラス素材
の保持治具である。Conventionally, in JP-A-1-148715, when a glass material is heated and softened and press-molded by a pair of molds corresponding to a desired optical element, molten glass is sandwiched between a pair of molds guided by a guide member. A method for obtaining an optical element by pouring and pressing is disclosed. In this method, the guide member is a glass material holding jig that holds the glass material in a high temperature state.
また、特公昭59−5533号公報には、型内表面に潤滑離型
剤をコーティング処理した型内に溶融ガラスを流し込
み、成形品を得る方法が開示されている。Further, Japanese Patent Publication No. 59-5533 discloses a method of casting a molten glass into a mold in which the surface of the mold is coated with a lubricant release agent to obtain a molded product.
上記従来のガイド部材を用いる方法にあっては、溶融ガ
ラスを一対の型により成形する際に、型外周のガイド部
材に高温のガラス素材が高圧で圧着される。しかし、従
来のガラス部材は何ら表面処理等が施されていないため
に、溶融ガラスがガイド部材に融着し、焼付きを生じ易
く、また冷却によってその焼付き部において割れを生じ
ることもあった。In the conventional method using the guide member, when the molten glass is molded by the pair of molds, the high temperature glass material is pressure-bonded to the guide member on the outer periphery of the mold. However, since the conventional glass member has not been subjected to any surface treatment or the like, the molten glass is easily fused to the guide member and is likely to cause seizure, and cooling may cause cracks in the seizure portion. .
一方、ガラスの融着を防止するために、特公昭59−5533
号公報記載のような離型剤をガラス素材の保持，搬送治
具にコーティング処理することも考えられるが、離型剤
は剥離してしまうもので、剥離のたびに再度離型剤を塗
布しなければならないという問題がある。また、特に成
形品が光学素子である場合には、例えばレンズ表面に離
型剤が付着することによって、光学素子の外観品質を低
下させるという問題がある。On the other hand, in order to prevent glass fusion, Japanese Patent Publication No. 59-5533
It may be possible to coat the glass material with a release agent as described in Japanese Patent Publication No. 2003-115, but the release agent will peel off, so reapply the release agent every time it is peeled off. There is a problem that has to be. Further, particularly when the molded product is an optical element, there is a problem that the appearance quality of the optical element deteriorates due to the release agent adhering to the lens surface, for example.
本発明は、かかる従来の問題点に鑑みてなされたもの
で、ガラスとの融着を生じず、高温状態でも耐久性に優
れ、また成形品の品質を低下させることのないガラス素
材の保持，搬送治具を提供することを目的とする。The present invention has been made in view of such conventional problems, does not cause fusion with glass, has excellent durability even in a high temperature state, and retains a glass material that does not deteriorate the quality of a molded article, It is intended to provide a transfer jig.
上記目的を達成するために、本発明は、タングステンを
主成分とした合金により本体を形成するとともに、ガラ
ス素材が接触しない本体表面に耐熱性の被膜層を設け
て、ガラス素材の保持，搬送治具を構成した。In order to achieve the above-mentioned object, the present invention forms a main body from an alloy containing tungsten as a main component, and provides a heat-resistant coating layer on the surface of the main body that does not come into contact with the glass material to hold or convey the glass material. Configured the ingredients.
本発明において、耐熱性の被膜層としては、TiC,TiN,Al
2O3等からなるものが適している。また、被膜層は、一
層構造でも複数層構造でもよい。In the present invention, the heat-resistant coating layer, TiC, TiN, Al
Those made of 2 O 3 etc. are suitable. Further, the coating layer may have a single-layer structure or a multi-layer structure.
ガラス素材を設置した本発明の保持，搬送治具を加熱す
ると、被膜層を設けていない部分では、加熱によって主
成分であるタングステンが酸化物となり、粉末状態で析
出する。ここに、加熱，軟化させたガラス素材を一対の
型により押圧成形すると、ガラス素材は流動して被膜層
を設けていない部分で保持，搬送治具の本体と接触す
る。この際、ガラス素材が接触する治具本体表面には、
前述の如く酸化タングステンの粉末層が存在し、この粉
末が離型剤の機能を発揮して焼付きが防止される。この
場合、酸化タングステンの粉末は、例えば、レンズ面の
ような光学的機能面には付着せず、光学的影響のない部
分の表面に付着するだけなので、問題はない。When the holding / transporting jig of the present invention in which the glass material is installed is heated, the main component tungsten becomes an oxide in the portion where the coating layer is not provided, and it is precipitated in the powder state. When the heated and softened glass material is press-molded by a pair of molds, the glass material flows and contacts with the main body of the holding and conveying jig at the portion where the coating layer is not provided. At this time, on the surface of the jig body that the glass material contacts,
As described above, the powder layer of tungsten oxide exists, and this powder functions as a release agent to prevent seizure. In this case, the tungsten oxide powder does not adhere to the optically functional surface such as the lens surface, but only adheres to the surface of the portion having no optical influence, so there is no problem.
また、耐熱性の被膜層を設けた部分では、本体からの酸
化タングステンの析出が防止され、酸化タングステン粉
末が飛散等してレンズ面等へ悪影響を与えることはな
い。In addition, in the portion where the heat resistant coating layer is provided, the precipitation of tungsten oxide from the main body is prevented, and the tungsten oxide powder is not scattered and adversely affects the lens surface and the like.
（第１実施例） 第１図は、本実施例のガラス素材の保持，搬送治具を示
すもので、同軸上に対向配置された上型１と下型２との
間に、ガラス素材３を高温状態で保持，搬送する保持，
搬送治具４が設けられている。この保持，搬送治具４の
治具本体５は、タングステン91重量％，モリブデン3.8
重量％，ニッケル4.2重量％および残部1.0重量％からな
る合金により形成されている。また、ガラス素材３が接
触しない治具本体５の表面には、耐熱性の被膜層６が被
覆されている。(First Embodiment) FIG. 1 shows a jig for holding and conveying a glass material of the present embodiment, in which a glass material 3 is provided between an upper mold 1 and a lower mold 2 which are coaxially opposed to each other. Hold at high temperature, hold to convey,
A transfer jig 4 is provided. The jig main body 5 of the holding / transporting jig 4 is 91% by weight of tungsten and 3.8% of molybdenum.
It is made of an alloy consisting of wt%, nickel 4.2 wt% and the balance 1.0 wt%. The surface of the jig body 5 that is not in contact with the glass material 3 is covered with a heat-resistant coating layer 6.
この被膜層６は、第２図に示すように、治具本体５表面
上に形成された膜厚２μｍのTiC膜７と、このTiC膜７上
に形成された膜厚２μｍのTiN膜８とから構成されてい
る。治具本体５におけるガラス素材３の接触面９には、
被膜層６は設けられていない。As shown in FIG. 2, the coating layer 6 includes a TiC film 7 having a film thickness of 2 μm formed on the surface of the jig body 5 and a TiN film 8 having a film thickness of 2 μm formed on the TiC film 7. It consists of On the contact surface 9 of the glass material 3 in the jig body 5,
The coating layer 6 is not provided.
本実施例の保持，搬送治具４を用いて押圧成形を行う
と、加熱による高温状態で、治具本体５の接触面９に
は、酸化タングステン粉末が析出する。そして、この析
出によりガラスの焼付きが防止される。また、被膜層６
を設けた部分においては、酸化タングステンの析出が防
止され、レンズ面へ酸化タングステンが付着することは
ない。なお、酸化タングステンが析出する接触面９は、
レンズの外周面に対応する位置であるので、レンズ面へ
の悪影響はない。When press-molding is performed using the holding and conveying jig 4 of this embodiment, tungsten oxide powder is deposited on the contact surface 9 of the jig body 5 at a high temperature due to heating. Then, this precipitation prevents seizure of the glass. In addition, the coating layer 6
In the portion provided with, the precipitation of tungsten oxide is prevented, and the tungsten oxide does not adhere to the lens surface. The contact surface 9 on which tungsten oxide is deposited is
Since the position corresponds to the outer peripheral surface of the lens, there is no adverse effect on the lens surface.
さらに、本実施例では、被膜層６は２層構造であって膜
厚が厚くなりすぎることがなく、膜厚の寸法設定を行い
易い。Further, in the present embodiment, the coating layer 6 has a two-layer structure, and the film thickness does not become too thick, and the film thickness dimension can be easily set.
（第２実施例） 第３図は、本実施例のガラス素材の保持，搬送治具の要
部を示すもので、第１実施例の保持，搬送治具と異なる
点は、治具本体10の材料と、被膜層11が３層構造からな
っている点である。(Second Embodiment) FIG. 3 shows the essential parts of the glass material holding and carrying jig of this embodiment. The difference from the holding and carrying jig of the first embodiment is that the jig body 10 The material and the coating layer 11 have a three-layer structure.
治具本体10は、タングステン90重量％，モリブデン4.5
重量％，ニッケル4.8重量％および残部0.7重量％からな
る合金により形成されている。また、被膜層11は、治具
本体10表面上に形成された膜厚２μｍのTiC膜12と、こ
のTiC膜12上に形成された膜厚２μｍのTiN膜13と、この
TiN膜13上に形成された膜厚２μｍのAl2O314とから構成
されている。Jig body 10 is 90 wt% tungsten, 4.5 molybdenum
It is made of an alloy consisting of wt%, nickel 4.8 wt% and the balance 0.7 wt%. The coating layer 11 includes a TiC film 12 having a film thickness of 2 μm formed on the surface of the jig body 10, a TiN film 13 having a film thickness of 2 μm formed on the TiC film 12,
It is composed of Al 2 O 3 14 having a film thickness of 2 μm formed on the TiN film 13.
本実施例の保持，搬送治具を用いて押圧成形を行った場
合にも、第１実施例と同様の効果を得ることができ、特
に最表層にAl2O3膜14を設けているので、耐熱性がさら
に向上する。Even when pressure holding is performed using the holding and conveying jig of this embodiment, the same effect as in the first embodiment can be obtained, and in particular, the Al 2 O 3 film 14 is provided on the outermost layer. The heat resistance is further improved.
（第３実施例） 第４図は、本実施例のガラス素材の保持，搬送治具を示
すもので、本発明を位置出しスリーブに適用した例であ
る。(Third Embodiment) FIG. 4 shows a jig for holding and conveying a glass material of this embodiment, which is an example in which the present invention is applied to a positioning sleeve.
この位置出しスリーブ15は、上型１および下型２の位置
出しを行うもので、第１実施例の治具本体５と同一材料
からなる円筒状のスリーブ本体16の表面には、第１実施
例と同一の２層構造の被膜層17が設けられている。ま
た、第１実施例と同様にガラス素材３が接触する接触面
18には、被膜層17は設けられていない。This positioning sleeve 15 positions the upper die 1 and the lower die 2, and the surface of the cylindrical sleeve body 16 made of the same material as that of the jig body 5 of the first embodiment is used for the first embodiment. A coating layer 17 having the same two-layer structure as that of the example is provided. Further, as in the first embodiment, the contact surface with which the glass material 3 contacts
The coating layer 17 is not provided on the layer 18.
本実施例においても、第１実施例と同様の作用，効果を
発揮し、特に被膜層17によるタングステンの酸化防止に
より位置出し精度を高くすることができる。Also in this embodiment, the same action and effect as those of the first embodiment are exhibited, and particularly, the positioning accuracy can be improved by preventing the oxidation of tungsten by the coating layer 17.
なお、ガラス素材３は成形後の冷却による収縮量が大き
いため、被膜層17の厚さによるガラス素材３の取り出し
の問題は何ら生じない。Since the glass material 3 has a large amount of shrinkage due to cooling after molding, there is no problem of taking out the glass material 3 due to the thickness of the coating layer 17.
以上の実施例においては、本体を形成する合金のタング
ステンの含有量を90重量％以上としたが、本発明はかか
る実施例に限定されるものではなく、高温状態で酸化タ
ングステン粉末が析出する範囲であればよく、特に70重
量％以上が好ましい。また、被膜層を構成する各膜厚が
１μｍ以下になると膜質がポーラスとなって、酸化タン
グステン粉末が析出してしまうこともあるので、１μｍ
を越える膜厚とするのが好ましい。In the above examples, the content of tungsten in the alloy forming the main body was 90% by weight or more, but the present invention is not limited to such examples, and the range in which the tungsten oxide powder precipitates in a high temperature state It is sufficient that it is 70% by weight or more. Further, when each film thickness of the coating layer becomes 1 μm or less, the film quality may become porous and the tungsten oxide powder may be deposited, so that 1 μm.
It is preferable that the film thickness exceeds.
以上のように、本発明のガラス素材の保持，搬送治具に
よれば、ガラス素材が接触する部分では酸化タングステ
ン粉末の析出により治具とガラス素材との焼付きが防止
でき、また他の部分で耐熱性の被膜層によりタングステ
ンの酸化を防止し、成形品の品質を低下させることもな
い。As described above, according to the jig for holding and conveying the glass material of the present invention, seizure between the jig and the glass material can be prevented due to the deposition of the tungsten oxide powder at the portion where the glass material comes into contact, and the other portion. Therefore, the heat-resistant coating layer prevents the oxidation of tungsten and does not deteriorate the quality of the molded product.
第１図は本発明に係るガラス素材の保持，搬送治具の第
１実施例を示す縦断面図、第２図は第１図に示す治具の
要部縦断面図、第３図は本発明の第２実施例を示す要部
縦断面図、第４図は本発明の第３実施例を示す縦断面図
である。 ３…ガラス素材 ４…保持，搬送治具 5,10…治具本体 6,11,17…被膜層 16…スリーブ本体FIG. 1 is a longitudinal sectional view showing a first embodiment of a jig for holding and conveying glass materials according to the present invention, FIG. 2 is a longitudinal sectional view of an essential part of the jig shown in FIG. 1, and FIG. FIG. 4 is a longitudinal sectional view showing a principal part of a second embodiment of the invention, and FIG. 4 is a longitudinal sectional view showing a third embodiment of the invention. 3 ... Glass material 4 ... Holding / conveying jig 5,10 ... Jig body 6,11,17 ... Coating layer 16 ... Sleeve body
Claims (1)
体を形成するとともに、ガラス素材が接触しない本体表
面に耐熱性の被膜層を設けたことを特徴とするガラス素
材の保持，搬送治具。1. A jig for holding and carrying a glass material, characterized in that a main body is made of an alloy containing tungsten as a main component, and a heat-resistant coating layer is provided on the surface of the main body which is not in contact with the glass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2262275A JPH0777970B2 (en) | 1990-09-28 | 1990-09-28 | Glass material holding and transportation jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2262275A JPH0777970B2 (en) | 1990-09-28 | 1990-09-28 | Glass material holding and transportation jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04139031A JPH04139031A (en) | 1992-05-13 |
| JPH0777970B2 true JPH0777970B2 (en) | 1995-08-23 |
Family
ID=17373535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2262275A Expired - Fee Related JPH0777970B2 (en) | 1990-09-28 | 1990-09-28 | Glass material holding and transportation jig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0777970B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5288561A (en) * | 1990-10-30 | 1994-02-22 | Kabushiki Kaisha Toshiba | High temperature heat-treating jig |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5756339A (en) * | 1980-09-18 | 1982-04-03 | Yamamura Glass Kk | Metallic mold for molding glass |
| JPS61266324A (en) * | 1985-05-20 | 1986-11-26 | Olympus Optical Co Ltd | Member for holding and conveying glass material |
| JPS61281030A (en) * | 1985-06-06 | 1986-12-11 | Olympus Optical Co Ltd | Mold for molding optical element |
-
1990
- 1990-09-28 JP JP2262275A patent/JPH0777970B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04139031A (en) | 1992-05-13 |
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