JPH042621A - Jig for feeding molten glass - Google Patents
Jig for feeding molten glassInfo
- Publication number
- JPH042621A JPH042621A JP10214590A JP10214590A JPH042621A JP H042621 A JPH042621 A JP H042621A JP 10214590 A JP10214590 A JP 10214590A JP 10214590 A JP10214590 A JP 10214590A JP H042621 A JPH042621 A JP H042621A
- Authority
- JP
- Japan
- Prior art keywords
- molten glass
- jig
- feeding
- ceramics
- spraying method
- 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
- 239000006060 molten glass Substances 0.000 title claims abstract description 54
- 150000004767 nitrides Chemical class 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 239000011224 oxide ceramic Substances 0.000 claims abstract description 4
- 229910052574 oxide ceramic Inorganic materials 0.000 claims abstract description 4
- 238000007751 thermal spraying Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 8
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000010285 flame spraying Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 7
- 239000011521 glass Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- SAPGTCDSBGMXCD-UHFFFAOYSA-N (2-chlorophenyl)-(4-fluorophenyl)-pyrimidin-5-ylmethanol Chemical compound C=1N=CN=CC=1C(C=1C(=CC=CC=1)Cl)(O)C1=CC=C(F)C=C1 SAPGTCDSBGMXCD-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/167—Means for preventing damage to equipment, e.g. by molten glass, hot gases, batches
- C03B5/1672—Use of materials therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/14—Transferring molten glass or gobs to glass blowing or pressing machines
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)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、成形用型等に溶融ガラスを供給する際に用い
られる溶融ガラスの供給治具に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a molten glass supply jig used for supplying molten glass to a mold or the like.
一般に、光学素子等のガラス製品は、溶融ガラスを一対
の成形用型により押圧成形して得られる。Generally, glass products such as optical elements are obtained by press-molding molten glass using a pair of molds.
かかる成形において、成形用型間に溶融ガラスを供給す
る際には、通常、パイプやとい等の供給治具が用いられ
る。In such molding, a supply jig such as a pipe or a gauntlet is usually used to supply molten glass between the molds.
ここに、溶融ガラスの供給治具は、高温で粘性の高い溶
融ガラスに常に接触するものである。したがって、溶融
ガラスの供給治具は、耐摩耗性。Here, the molten glass supply jig constantly comes into contact with the molten glass, which is high in temperature and highly viscous. Therefore, the molten glass feeding jig is wear-resistant.
耐腐食性、耐熱性および耐熱衝撃性に優れていることが
必要である。また、ガラスからなる高品質の光学素子を
得るためには、厳密な温度制御が必要であるので、溶融
ガラスの供給治具は、熱伝導率の低いことも要求される
。It is necessary to have excellent corrosion resistance, heat resistance, and thermal shock resistance. Further, in order to obtain high-quality optical elements made of glass, strict temperature control is required, so the molten glass supply jig is also required to have low thermal conductivity.
従来、溶融ガラスの供給治具としては、例えば、特開昭
６２−１５８１２２号公報や特開昭６１２０９９５６号
公報に記載されるように、鋳鉄等からなる基材に潤滑剤
を塗布したものや、白金製のものが用いられていた。Conventionally, molten glass supply jigs include those made of a base material made of cast iron or the like coated with a lubricant, as described in JP-A-62-158122 and JP-A-61209956, for example. Those made of platinum were used.
〔発明が解決しようとするＩＩ！！り
しかし、上記従来の鋳鉄製の供給治具では、塗布した潤
滑剤の物性が弱いために、長期間の使用に耐えることが
できなかった。しかも、溶融ガラス中に潤滑剤の成分が
混入することもあり、不良発生の原因になっていた。ま
た、溶融ガラスの熱によって、供給治具の表面が腐食す
るという問題もあつた。一方、白金型の供給治具では、
非常に高価であった。[The invention attempts to solve II! ! However, in the above-mentioned conventional cast iron supply jig, the applied lubricant had weak physical properties and could not withstand long-term use. Furthermore, lubricant components may be mixed into the molten glass, causing defects. Another problem was that the surface of the supply jig was corroded by the heat of the molten glass. On the other hand, with platinum mold supply jig,
It was very expensive.
本発明は、かかる従来の問題点に鑑みてなされたもので
、溶融ガラスが長期間接触しても、表面が腐食せず、か
つ溶融ガラスの濡れ性が悪く、安価な溶融ガラスの供給
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, and is an inexpensive molten glass supply jig that does not corrode the surface even if the molten glass comes into contact with it for a long period of time, has poor wettability of the molten glass, and is inexpensive. The purpose is to provide
［課題を解決するための手段］
上記目的を達成するために、請求項１に係る発明は、溶
融ガラスを供給する治具の少なくとも溶融ガラスと接触
する面に、窒化物よりなるセラミックスを溶射法より被
覆して、溶融ガラスの供給治具を構成した。[Means for Solving the Problems] In order to achieve the above object, the invention according to claim 1 is a method of spraying ceramics made of nitride on at least the surface of a jig for supplying molten glass that contacts the molten glass. Then, a molten glass supply jig was constructed.
また、請求項２に係る発明は、溶融ガラスを供給する治
具の少なくとも溶融ガラスと接触する面に、窒化物より
なるセラミックスを溶射法により被覆し、その窒化物を
酸化させて酸化セラミックスとして、溶融ガラスの供給
治具を構成した。Further, the invention according to claim 2 provides a method of coating at least the surface of the jig for supplying molten glass with ceramics made of nitride by a thermal spraying method, and oxidizing the nitride to form oxide ceramics. A molten glass supply jig was constructed.
〔作 用］
上記構成の溶融ガラスの供給治具において、窒化物より
なるセラミックスやこれを酸化させた酸化セラミックス
は、耐熱性および耐腐食性に優れるうえに、ガラスとの
濡れ性も悪い。ところが、このようなセラミックスは、
そのまま使用すると高価になってしまう、そこで、本発
明においては、上記セラミックスを溶射法により被覆形
成することとした。また、これにより、被覆膜は、内部
に微小な空孔を有することになり、耐熱性も向上する。[Function] In the molten glass supply jig having the above configuration, ceramics made of nitrides and oxidized ceramics obtained by oxidizing them have excellent heat resistance and corrosion resistance, and also have poor wettability with glass. However, such ceramics
If used as is, it would be expensive; therefore, in the present invention, it was decided to form a coating with the above-mentioned ceramic by a thermal spraying method. Moreover, as a result, the coating film has minute pores inside, and its heat resistance is also improved.
さらに、溶射法による被覆膜は、研摩表面粗度が良く、
耐摩耗性が良好となる。Furthermore, the coating film produced by thermal spraying has a good polished surface roughness.
Good wear resistance.
〔実 施 例］
（第１実施例）
図は、本実施例の溶融ガラスの供給治具を備えた溶融ガ
ラス供給装置を示すもので、溶融ガラス１を収容した溶
融槽２の下端には、溶融ガラス１を成形用型間（図示省
略）へ供給する供給治具として流出パイプ３が固設され
ている。この流出パイプ３は、パイプ基材３ａが耐熱性
に優れたＡｆｆＳｉ系合金により形成され、このバイブ
基材３ａの内面（溶融ガラス１の接触面）には、プラズ
マ溶射法により膜厚約８００μｍのＴｉＮ膜３ｂが被覆
形成されている。そして、ＴｉＮ膜３ｂの表面は、研摩
仕上げが施されている。[Example] (First example) The figure shows a molten glass supply device equipped with a molten glass supply jig according to this example. An outflow pipe 3 is fixedly installed as a supply jig for supplying molten glass 1 between molds (not shown). In this outflow pipe 3, a pipe base material 3a is formed of an AffSi alloy with excellent heat resistance, and a film of approximately 800 μm in thickness is coated on the inner surface of the vibe base material 3a (the contact surface with the molten glass 1) by plasma spraying. A TiN film 3b is formed to cover it. The surface of the TiN film 3b is polished.
このような構成の溶融ガラス供給装置を用いて、５ＳＫ
Ｉのガラスを１４００°Ｃで熔解し、流出パイプ３によ
り溶融ガラス１を３００時間流し続けたところ、ＴｉＮ
膜３ｂには何らの変化もなく、流出する溶融ガラス１に
も欠陥はなかった。また、約１０００°Ｃの高温の溶融
ガラス１が流出パイプ３内を流れているにも拘らず、流
出パイプ３の外周部の温度は６００°Ｃであり、断熱効
果が認められた。Using a molten glass supply device with such a configuration, 5SK
When the glass I was melted at 1400°C and the molten glass 1 was continued to flow through the outflow pipe 3 for 300 hours, TiN
There was no change in the film 3b, and there were no defects in the molten glass 1 flowing out. Further, although the molten glass 1 having a high temperature of about 1000°C was flowing inside the outflow pipe 3, the temperature at the outer circumference of the outflow pipe 3 was 600°C, and a heat insulating effect was observed.
（第２実施例）
本実施例では、第１実施例と同様にして、流出パイプの
パイプ基材内面にＴ ｉ Ｎ膜を被覆形成した後、その
Ｔ ｉ Ｎ膜を６００°Ｃの大気中に約２時間放置した
。これにより、Ｔ ｉ Ｎ膜は酸化され、ＴｉＯ□膜と
なった。(Second Example) In this example, in the same manner as in the first example, a TiN film was formed on the inner surface of the pipe base material of an outflow pipe, and then the TiN film was exposed to air at 600°C. It was left for about 2 hours. As a result, the TiN film was oxidized and became a TiO□ film.
このように、酸化セラミックスのＴｉＯ□膜を有する流
出パイプにより５ＫＩＩの溶融ガラスを３００時間流し
続けたところ、Ｔｉ○２Ｍには何らの変化もなく、流出
する溶融ガラスにも欠陥はなかった。また、本実施例の
流出パイプでも、第】実施例と同様に断熱効果が認めら
れた。As described above, when molten glass of 5KII was continuously flowed for 300 hours through an outflow pipe having a TiO□ film of oxide ceramic, there was no change in Ti○2M, and there were no defects in the molten glass flowing out. Further, in the outflow pipe of this example, a heat insulating effect was observed as in Example 1.
さらに、一般に酸化物被膜は非常に脆く、基材から剥離
し易いものであるが、本実施例のように溶射法によって
窒化物を形成した後に酸化させると、直接に酸化物被膜
を設けた場合よりも強度が向上する。Furthermore, oxide films are generally very brittle and easily peel off from the base material, but if the nitride is formed by a thermal spraying method and then oxidized as in this example, the oxide film is directly applied. The strength is improved.
なお、上記各実施例では、長い流出パイプの内面を溶射
法により被膜することはできないので、パイプ内面の全
体に良好な被膜ができるように、パイプの長さはパイプ
の内径の約１．５倍とした。In each of the above embodiments, it is not possible to coat the inner surface of a long outflow pipe by thermal spraying, so the length of the pipe is approximately 1.5 of the inner diameter of the pipe so that a good coating can be formed on the entire inner surface of the pipe. It was doubled.
また、上記各実施例では、窒化物セラミックスとしてＴ
ｉ Ｎを用いたが、本発明はかかる実施例に限定され
るものではなく、Ｚｒ、Ｎ、ＣｒＮ、ＢＮＨｆＮ等の窒
化物から任意に少なくとも１つの材料を選択することが
できる。すなわち、ＺｒＮとＣｒＮとを組み合わせても
良い。In addition, in each of the above examples, T is used as the nitride ceramic.
Although iN was used, the present invention is not limited to this example, and at least one material can be arbitrarily selected from nitrides such as Zr, N, CrN, and BNHfN. That is, ZrN and CrN may be combined.
以上のように、本発明の溶融ガラスの供給治具によれば
、高温の溶融ガラスに対しても良好な耐熱性、耐腐食性
、耐摩耗性および断熱性を示し、溶融ガラスとの濡れ性
も悪く、長期に亘って使用可能である。As described above, the molten glass supply jig of the present invention exhibits good heat resistance, corrosion resistance, abrasion resistance, and heat insulation properties even with high-temperature molten glass, and has good wettability with molten glass. It is also bad and can be used for a long time.
図は本発明の一実施例である流出パイプを備えた溶融ガ
ラス供給装置の縦断面図である。
ｌ・・・溶融ガラス
２・・・溶融槽
３・・・流出パイプ
３ａ・・・バイブ基材
３ｂ・・・ＴｉＮ膜
特許出願人 オリンパス光学工業株式会社・・・溶融
ガラス
・・・溶融槽
・・・流出パイプ
ａ・・・バイブ基材
ｂ・・・ＴｉＮ膜The figure is a longitudinal cross-sectional view of a molten glass supply device equipped with an outflow pipe, which is an embodiment of the present invention. l... Molten glass 2... Melting tank 3... Outflow pipe 3a... Vibe base material 3b... TiN film patent applicant Olympus Optical Industry Co., Ltd.... Molten glass... Melting tank... ...Outflow pipe a...Vibe base material b...TiN film
Claims (2)
スと接触する面に、窒化物よりなるセラミックスを溶射
法より被覆したことを特徴とする溶融ガラスの供給治具
。(1) A molten glass supply jig characterized in that at least the surface of the molten glass supply jig that comes into contact with the molten glass is coated with ceramics made of nitride by thermal spraying.
スと接触する面に、窒化物よりなるセラミックスを溶射
法により被覆し、その窒化物を酸化させて酸化セラミッ
クスとしたことを特徴する溶融ガラスの供給治具。(2) A molten glass characterized in that at least the surface of a jig for supplying molten glass that comes into contact with the molten glass is coated with ceramics made of nitride by thermal spraying, and the nitride is oxidized to form oxide ceramics. Supply jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10214590A JPH042621A (en) | 1990-04-18 | 1990-04-18 | Jig for feeding molten glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10214590A JPH042621A (en) | 1990-04-18 | 1990-04-18 | Jig for feeding molten glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042621A true JPH042621A (en) | 1992-01-07 |
Family
ID=14319585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10214590A Pending JPH042621A (en) | 1990-04-18 | 1990-04-18 | Jig for feeding molten glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4913031B2 (en) * | 2004-02-27 | 2012-04-11 | アクロン・スペシャル・マシナリー・インコーポレイテッド | Polishing assembly for tire uniformity machines |
| JP4943344B2 (en) * | 2004-12-15 | 2012-05-30 | アクロン・スペシャル・マシナリー・インコーポレイテッド | Tire grinding machine assembly |
-
1990
- 1990-04-18 JP JP10214590A patent/JPH042621A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4913031B2 (en) * | 2004-02-27 | 2012-04-11 | アクロン・スペシャル・マシナリー・インコーポレイテッド | Polishing assembly for tire uniformity machines |
| JP4943344B2 (en) * | 2004-12-15 | 2012-05-30 | アクロン・スペシャル・マシナリー・インコーポレイテッド | Tire grinding machine assembly |
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