JPS632816A - Platinum vessel for high temperature use - Google Patents
Platinum vessel for high temperature useInfo
- Publication number
- JPS632816A JPS632816A JP14444486A JP14444486A JPS632816A JP S632816 A JPS632816 A JP S632816A JP 14444486 A JP14444486 A JP 14444486A JP 14444486 A JP14444486 A JP 14444486A JP S632816 A JPS632816 A JP S632816A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- platinum
- high temperature
- vessel
- volatilization
- 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
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 21
- 229910001260 Pt alloy Inorganic materials 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 abstract description 9
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000006060 molten glass Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 230000008018 melting Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000629 Rh alloy Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000005361 soda-lime glass Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 238000007740 vapor deposition Methods 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
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
- C03B37/095—Use of materials therefor
-
- 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
- C03B5/06—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in pot furnaces
- C03B5/08—Glass-melting pots
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ガラス溶解用るつぼ、ガラス繊維紡糸用ブッ
シング等の高温用白金容器に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a high temperature platinum container such as a glass melting crucible or a bushing for glass fiber spinning.
（従来技術とその問題点）
従来よりガラス溶解用るつぼ、ガラス繊維紡糸用ブッシ
ング等の高温用白金容器は、Ｐｔやｐｔ−Ｒｈ合金等の
Ｐｔ合金にて製作されているわけであるが、大気中、１
２００〜１３００℃の高温の酸化条件下で、長期間使用
されると、Ｐｔが酸化揮発して消耗し、例えば１年間も
使用すると、総重量の１０％近くが揮発消耗する。これ
を５ ｋｇのｐするっぽで考えると５００ ｇ 、の損
失となる。(Prior art and its problems) Conventionally, high-temperature platinum containers such as glass melting crucibles and glass fiber spinning bushings have been made of Pt alloys such as Pt and pt-Rh alloys. Medium, 1
When used for a long period of time under high temperature oxidizing conditions of 200 to 1300° C., Pt oxidizes and volatilizes and is consumed. For example, when used for one year, nearly 10% of the total weight is volatilized and consumed. Considering this in terms of 5 kg of weight, the loss would be 500 g.
そこで本発明は、ｐｔの揮発消耗を減少することのでき
る高温用白金容器を提供せんとするものである。Therefore, the present invention aims to provide a high-temperature platinum container that can reduce the volatilization consumption of PT.
（問題点を解決するための手段）
上記問題点を解決するための本発明の高温用白金容器は
、高温で使用するＰｔ、Ｐｔ合金容器の表面にガラスが
被覆されて成るものである。(Means for Solving the Problems) A high temperature platinum container of the present invention for solving the above problems is made by coating the surface of a Pt or Pt alloy container used at high temperatures with glass.
（作用）
上記のように表面に、ガラスが被覆されて成る高温用白
金容器は、被覆層が緻密な非金属層であるので、ｐｔＳ
ｐｔ合金の容器の高温での使用時、表面への空気の流通
が阻害され、ｐｔの酸化揮発が減少して、ｐｔの消耗量
が大幅に減少する。(Function) The high temperature platinum container whose surface is coated with glass as described above has a dense nonmetallic coating layer, so ptS
When a PT alloy container is used at high temperatures, air flow to the surface is inhibited, oxidation and volatilization of PT is reduced, and the amount of PT consumed is significantly reduced.
（実施例）
本発明の高温用白金容器の一実施例をガラス溶解用るつ
ぼの場合について説明する。第１図に示す如く胴径３０
（ｈｍ、高さ３００ ｖａ、厚さ０．６５ｍ、重量５
ｋｇの白金るつぼ１の、溶解ガラス２の収容されている
表面に、ＳｉＯ□６８．９％、ＢｚＯｉｌｏ、１％、Ｎ
ａｚ０８．４％、Ｋ、０８．４％、Ｂ ａ ０２．８％
、八１２Ｏｓ１．０％から成るガラスを浸漬法により厚
さ０．３■被ｊｉ１層３を形成した。(Example) An example of the high-temperature platinum container of the present invention will be described in the case of a glass melting crucible. As shown in Figure 1, the trunk diameter is 30 mm.
(hm, height 300 va, thickness 0.65 m, weight 5
68.9% SiO□, 1% BzOilo, N
az08.4%, K,08.4%, B a02.8%
, 812Os 1.0% was coated with a glass layer 3 having a thickness of 0.3 mm by a dipping method.
この被覆層３を有する実施例の白金るつぼ１と、従来例
の被覆Ｎ３を有しない同一寸法の白金るつぼ（図示省略
）とを１２５０℃で６ケ月間ガラス溶解に使用した処、
従来例の白金るつぼは、ｐｔが２３０ｇ酸化揮発したの
に対し、実施例の白金るつぼ１はｐｔが１２０ｇ酸化揮
発して、ｐｔの消耗が半減している。The platinum crucible 1 of the embodiment having this coating layer 3 and the platinum crucible of the same size (not shown) of the conventional example without the coating N3 were used for glass melting at 1250° C. for 6 months.
In the platinum crucible of the conventional example, 230 g of PT was oxidized and volatilized, whereas in the platinum crucible 1 of the example, 120 g of PT was oxidized and volatilized, reducing the consumption of PT by half.
これを裏付ける実験として、幅２０ｎ、長さ７０１ｍ、
厚さ０．５ｆｌのｐｔ試験片の外表面に前記成分組成の
ガラスを浸漬法により厚さ０．３ｆｉの被覆層を設けた
ものと、被覆層を全く設けていない同一寸法のｐｔ試験
片とを、大気中、１３００℃で１６０時間加熱する実験
を行い、ｐｔの酸化揮発による減量を経時的に測定した
処、第２図のグラフに示すような結果を得た。第２図の
グラフで判るようにガラスの被覆層を有しないＰｔ試験
片は、１３００℃、１６０時間加熱すると、０．５４■
／ｃｉのＰｔの揮発消耗を生じたが、ガラスの被覆層を
有するｐｔ試験片は、１３００℃、１６０時間加熱して
もＰｔＯ蓮発消耗量が０．２３■／ｄで著しく少ないも
のである。As an experiment to support this, a width of 20n, a length of 701m,
A PT specimen with a thickness of 0.5fl and a coating layer of 0.3fi thick on the outer surface of the glass having the above composition by dipping, and a PT specimen of the same size with no coating layer provided at all. An experiment was conducted in which PT was heated at 1300° C. for 160 hours in the air, and the weight loss due to oxidation and volatilization of PT was measured over time, and the results shown in the graph of FIG. 2 were obtained. As can be seen from the graph in Figure 2, when a Pt specimen without a glass coating layer is heated at 1300°C for 160 hours, the
/ci of Pt was volatilized, but the PT test piece with a glass coating layer had a significantly small amount of PtO volatilization of 0.23 /d even after heating at 1300°C for 160 hours. .
尚、上記実施例は、高温用白金容器がガラス溶解用るつ
ぼの場合であるが、ガラス繊維紡糸用ブッシングの場合
もある。また、上記実施例では、Ｓ ｉ ０ｚ６８．９
％、Ｂ２０ｄ０．１％、Ｎ ａ ２０８，４％、Ｋｚ０
８．４％、］３ ａ ０２．８％、Ａｊｌ！ｚｃｈ１．
０％から成るガラスを被覆しているが、高温で安定なガ
ラスならば、ケイ酸ガラス、ソーダ石灰ガラス、カリ石
灰ガラス、バリウムガラス、ホウケイ酸ガラス等であっ
ても良いものである。要するに高温白金用容器のｐｔ又
はｐｔ金合金表面へ空気の流通を阻害し、ｐｔの酸化揮
発を抑制できる緻密な非金属層であれば良いものである
。さらにこれらの緻密な非金属層の形成手段は、前記実
施例の浸漬法に限るものではなく、蒸着、溶射等の他の
手段でも良いものである。In the above embodiment, the high temperature platinum container is a glass melting crucible, but it may also be a bushing for glass fiber spinning. Further, in the above example, S i 0z68.9
%, B20d0.1%, Na 208.4%, Kz0
8.4%, ]3 a 02.8%, Ajl! zch1.
0% glass, but any glass that is stable at high temperatures, such as silicate glass, soda lime glass, potassium lime glass, barium glass, or borosilicate glass, may be used. In short, any dense non-metal layer that can inhibit air flow to the PT or PT gold alloy surface of the high-temperature platinum container and suppress oxidation and volatilization of PT is sufficient. Further, the means for forming these dense non-metallic layers is not limited to the immersion method of the above embodiments, and other methods such as vapor deposition, thermal spraying, etc. may be used.
さらにまた上記実施例では白金るつぼの外表面にガラス
を被覆しているが、内表面にも被覆すればさらに効果が
あり、この場合溶解するガラスで被覆すればよいもので
ある。Furthermore, in the above embodiments, the outer surface of the platinum crucible is coated with glass, but it would be even more effective if the inner surface was also coated, and in this case it would be sufficient to coat it with molten glass.
（発明の効果）
以上詳記した通り本発明の高温用白金容器は、容器の表
面に高温で安定した耐火が被覆されているので、Ｐｔ、
Ｐｔ合金表面への空気の流通が阻害され、Ｐｔの酸化揮
発が抑制さて、高価なＰｔの消耗量が大幅に減少する効
果がある。(Effects of the Invention) As detailed above, the high temperature platinum container of the present invention has a fireproof coating that is stable at high temperatures on the surface of the container.
The flow of air to the Pt alloy surface is inhibited, the oxidation and volatilization of Pt is suppressed, and the amount of consumption of expensive Pt is significantly reduced.
第１図は本発明の高温用白金容器の一実施例である白金
るつぼを示す縦断面図、第２図はガラスを被覆したｐｔ
の試験片と被覆しないＰｔの試験片との大気中での高温
加熱によるｐｔの酸化揮発による経時的な重量減を示す
グラフである。
出願人 田中貴金属工業株式会社
１−白金るつぼ、３−ガラスの被覆層
第１図
第２図
錫量（ｈｒ）Fig. 1 is a vertical cross-sectional view showing a platinum crucible which is an embodiment of the high-temperature platinum container of the present invention, and Fig. 2 is a PTFE crucible coated with glass.
2 is a graph showing the weight loss over time due to oxidation and volatilization of PT due to high temperature heating in the atmosphere of a test piece of Pt without coating and a test piece of uncoated Pt. Applicant: Tanaka Kikinzoku Kogyo Co., Ltd. 1-Platinum crucible, 3-Glass coating layer Figure 1 Figure 2 Tin amount (hr)
Claims (1)
が被覆されて成る高温用白金容器。A high-temperature platinum container made of Pt or Pt alloy that is used at high temperatures and whose surface is coated with glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14444486A JPS632816A (en) | 1986-06-20 | 1986-06-20 | Platinum vessel for high temperature use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14444486A JPS632816A (en) | 1986-06-20 | 1986-06-20 | Platinum vessel for high temperature use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS632816A true JPS632816A (en) | 1988-01-07 |
Family
ID=15362363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14444486A Pending JPS632816A (en) | 1986-06-20 | 1986-06-20 | Platinum vessel for high temperature use |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS632816A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009084697A (en) * | 2004-09-13 | 2009-04-23 | Tanaka Kikinzoku Kogyo Kk | Coating material for platinum material, platinum material coated with such coating material, and glass manufacturing apparatus |
| JP2009249215A (en) * | 2008-04-03 | 2009-10-29 | Asahi Glass Co Ltd | Platinum structure, and method for producing the same |
| JP2010202444A (en) * | 2009-03-03 | 2010-09-16 | Asahi Glass Co Ltd | Glass melting furnace and glass melting method |
-
1986
- 1986-06-20 JP JP14444486A patent/JPS632816A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009084697A (en) * | 2004-09-13 | 2009-04-23 | Tanaka Kikinzoku Kogyo Kk | Coating material for platinum material, platinum material coated with such coating material, and glass manufacturing apparatus |
| JP2009249215A (en) * | 2008-04-03 | 2009-10-29 | Asahi Glass Co Ltd | Platinum structure, and method for producing the same |
| JP2010202444A (en) * | 2009-03-03 | 2010-09-16 | Asahi Glass Co Ltd | Glass melting furnace and glass melting method |
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