JPS62207737A - Bushing for producing glass fiber - Google Patents
Bushing for producing glass fiberInfo
- Publication number
- JPS62207737A JPS62207737A JP4800686A JP4800686A JPS62207737A JP S62207737 A JPS62207737 A JP S62207737A JP 4800686 A JP4800686 A JP 4800686A JP 4800686 A JP4800686 A JP 4800686A JP S62207737 A JPS62207737 A JP S62207737A
- Authority
- JP
- Japan
- Prior art keywords
- bushing
- base material
- alloy
- glass fiber
- substance
- 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
- 239000003365 glass fiber Substances 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000126 substance Substances 0.000 claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 229910018885 Pt—Au Inorganic materials 0.000 claims abstract description 3
- 229910001260 Pt alloy Inorganic materials 0.000 claims abstract 2
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 229910000629 Rh alloy Inorganic materials 0.000 description 10
- 239000011247 coating layer Substances 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 239000010948 rhodium Substances 0.000 description 7
- 239000006060 molten glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910052703 rhodium Inorganic materials 0.000 description 4
- 229910018967 Pt—Rh Inorganic materials 0.000 description 3
- 229910001020 Au alloy Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はガラス繊維製造用ブッシングに関するものであ
り、詳しくはブッシングのガラス流出部の母材の揮発損
失を防止したガラス繊維製造用ブッシングに関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bushing for manufacturing glass fiber, and more particularly to a bushing for manufacturing glass fiber that prevents volatilization loss of the base material at the glass outflow portion of the bushing.
〔従来の技術］
ガラス長ｍ維を紡糸するガラス繊維製造装置は、一般に
、第２図に示すような構成とされており、溶解炉１から
の溶融ガラス２は清澄室３を経てフォアハウス４に送給
される。フォアハウス４はノズル部、即ち、ブッシング
５を有し、ブッシング５の各チップから溶融ガラスを流
出垂下させると共にドラム７の巻取力にて延伸して長繊
維６となし、この長編！ｉ６をドラム７で巻取るように
なっている。[Prior Art] A glass fiber manufacturing apparatus for spinning long glass fibers generally has a configuration as shown in FIG. will be sent to The forehouse 4 has a nozzle portion, that is, a bushing 5, and allows the molten glass to flow out and hang down from each chip of the bushing 5, and is drawn by the winding force of the drum 7 to form a long fiber 6. i6 is wound up on drum 7.
このガラス繊！１６を紡糸するブッシング５は、第３図
（ａ）（断面図）及び（ｂ）（底面図）に示す如く、底
面のチッププレート８に例えば数百〜数千のチップ９が
通常は一体成形により設けられており、溶融ガラス２は
ブッシング５の内部に流人して、チップ９の孔９ａから
引き出され。This glass fiber! As shown in FIGS. 3(a) (cross-sectional view) and (b) (bottom view), the bushing 5 for spinning 16 has, for example, hundreds to thousands of chips 9 integrally molded on a chip plate 8 on the bottom surface. The molten glass 2 flows inside the bushing 5 and is drawn out from the hole 9a of the tip 9.
冷却されてガラス繊維６となる。なお、第３図（’ａ
）、（ｂ）においてｌＯａ、１０ｂは端子であり、装置
稼動中、ブッシング５は通電により例えば１２００〜１
２５０℃の高温に保たれている。It is cooled and becomes glass fiber 6. In addition, Figure 3 ('a
), (b), lOa and 10b are terminals, and during operation of the device, the bushing 5 is energized to a voltage of, for example, 1200 to 1
It is maintained at a high temperature of 250°C.
ブッシング５の材質としては、焼結アルミナやステンレ
ススチールが用いられる場合もあるが、ガラスへの不溶
解性、高クリープ強度及び耐酸化性に優れ、溶融ガラス
との接触角が比較的大きいことから、殆どの場合、ｐｔ
（白金）系合金が使用されている。Ｐｔ系合金としては
、Ｒｈ（ロジウム）を１０〜２５重量％含有するものが
上記特性に優れ、Ｐｔ−ｔｏ重量％Ｒｈ合金、Ｐｔ−２
０重量％Ｒｈ合金が耐酸化性等の面で優れる。Sintered alumina or stainless steel may be used as the material for the bushing 5, but these materials have excellent insolubility in glass, high creep strength, and oxidation resistance, and have a relatively large contact angle with molten glass. , in most cases, pt
(Platinum) based alloy is used. As Pt-based alloys, those containing 10 to 25% by weight of Rh (rhodium) are excellent in the above characteristics, and Pt-to-weight% Rh alloys, Pt-2
The 0% by weight Rh alloy is excellent in terms of oxidation resistance and the like.
［発明が解決しようとする問題点］
しかしながら、ブッシングは装置稼動中、常に１２００
〜１２５０℃程度の高温に保たれているため、金属の中
でも耐醸化性に優れているｐｔ−Ｒｈ合金であっても、
長期間使用を継続すると、ブッシングの表面、特に大気
中に露出しているチッププレートのチップ表面から空気
中又は周辺の金物やレンガ等へ高温酸化揮発し、チップ
部が減耗する。[Problems to be solved by the invention] However, the bushing always has a
Even though the pt-Rh alloy has excellent anti-oxidation properties among metals because it is kept at a high temperature of ~1250℃,
When used for a long period of time, high-temperature oxidation and volatilization occurs from the surface of the bushing, especially the chip surface of the chip plate exposed to the atmosphere, into the air or surrounding hardware, bricks, etc., and the chip portion wears out.
この酸化揮発によって、年間あたり２〜３重量％の揮発
ロスを生じることとなり、使用重量の大きい場合には、
相当量の貴金属を失うばかりでなく、箸しい場合には、
ブッシングの損傷という問題が生じる。This oxidative volatilization results in a volatilization loss of 2 to 3% by weight per year, and if the weight used is large,
Not only will you lose a considerable amount of precious metals, but if your chopsticks are broken,
The problem arises of bushing damage.
なお、ブッシング母材であるｐｔ系合金の高温酸化揮発
による重量減は、１３００℃、空気中で４００時間後の
試験結果で純Ｐｔ：約０．７重量％、ｐｔ−ｉｏ重量％
Ｒｈ合金：約０．５重量％、Ｐｔ−２０重量％Ｒｈ合金
：約０．３重量％である。In addition, the weight loss due to high-temperature oxidation and volatilization of the PT-based alloy, which is the base material of the bushing, was determined by test results after 400 hours at 1300°C in air: pure Pt: about 0.7% by weight, PT-IO weight%
Rh alloy: about 0.5% by weight, Pt-20% by weight Rh alloy: about 0.3% by weight.
［問題点を解決するための手段］
本発明は上記従来の問題点を解決し、ブッシングの母材
の高温酸化揮発を防止するものであって、ガラス繊維製
造用ブッシングのガラス流出部に、ブッシングの母材よ
りも難揮発性の物質を被覆したことを特徴とする。[Means for Solving the Problems] The present invention solves the above conventional problems and prevents high-temperature oxidation and volatilization of the base material of the bushing. It is characterized by being coated with a substance that is less volatile than the base material.
［作用］
ガラス流出部に難揮発性の物質が設けであるため、ブッ
シング母材の揮発による問題を解決する。[Function] Since a non-volatile substance is provided in the glass outflow section, problems caused by volatilization of the bushing base material are solved.
しかも、難揮発性の物質はガラス流出部に被覆すること
により設けであるため、ブッシング製造コストをおさえ
ることができる。Furthermore, since the hardly volatile substance is provided by coating the glass outlet, the manufacturing cost of the bushing can be kept down.
［実施例］ 以下、図面を参照して本発明の詳細な説明する。[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図は本発明の一実施例を示すブッシング底面部の一
部（第３図（ａ）の１部に相当する部分）の拡大断面図
である。FIG. 1 is an enlarged sectional view of a part of the bottom surface of a bushing (corresponding to a part of FIG. 3(a)) showing an embodiment of the present invention.
本実施例のガラス繊維製造用ブッシングは、そのガラス
流出部、即ち、底面のチッププレート１１及びチップ１
２に、ブッシングの母材よりも難揮発性の物質の被ｍ層
１４を設けたものである。なお、図中１３は溶融ガラス
、１５は紡糸されたガラスである。The glass fiber manufacturing bushing of this embodiment has a glass outflow portion, that is, a chip plate 11 and a chip 1 on the bottom surface.
2 is provided with a layer 14 of a substance that is less volatile than the base material of the bushing. In addition, in the figure, 13 is molten glass, and 15 is spun glass.
本発明において、ブッシングの母材は通常用いられるも
ので良く、例えばｐｔ−ｔｏ、重量％Ｒｈ合金、Ｐｔ−
２０ｉ量％Ｒｈ合金等のＰＬ金合金挙げられる。In the present invention, the base material of the bushing may be one commonly used, such as PT-TO, Rh alloy by weight, Pt-
Examples include PL gold alloys such as 20i% Rh alloy.
これらのブッシング母材よりも難揮発性の物質としては
特に制限はなく、高温揮発損失が少なく、耐酸化性に優
れ４強度等の特性に優れたものが好適に用いられ、例え
ば、純Ｒｈ、Ａｕ含有率が１〜５０重量％とりわけ５〜
１０重量％のＰｔ−Ａｕ合金が挙げられる。また、ブッ
シング母材と同様のＰｔ−Ｒｈ系合金で、Ｒｈ含有量の
多い（例えばＲｈ含有率２１〜５０重量％）合金を用い
ることもできる。There are no particular restrictions on the substance that is less volatile than these bushing base materials, and substances that have low high-temperature volatilization loss, excellent oxidation resistance, and excellent properties such as 4 strength are preferably used, such as pure Rh, Au content is 1 to 50% by weight, especially 5 to 50% by weight
A 10% by weight Pt-Au alloy may be mentioned. Further, a Pt-Rh based alloy similar to the bushing base material with a high Rh content (for example, Rh content of 21 to 50% by weight) can also be used.
これらの物質の被覆層１４は、第１図の如く、ブッシン
グの最も揮発損失の大きい箇所、即ち、大気中に露出し
ているチップ１２及びチッププレートｌｌの外側面に形
成するのが最も効果的である。更に、所望により、チッ
プ１２の内壁面やその他の箇所に形成することもできる
。It is most effective to form the coating layer 14 of these substances on the parts of the bushing where the volatilization loss is greatest, that is, on the outer surfaces of the chip 12 and the chip plate II exposed to the atmosphere, as shown in FIG. It is. Furthermore, if desired, they can be formed on the inner wall surface of the chip 12 or at other locations.
被覆層１４の厚さは、あまりに厚過ぎると被覆処理コス
ト等の而で不経済である丘に、被覆層が脆化する恐れが
ある。また逆に薄過ぎると拡散により被覆層が消失して
しまい、被覆効果がなくなる恐れがある。被覆層の厚さ
はブッシングの使用期間や使用条件等に応じて適宜選定
されるが、通常は１−１０ルｍ、特に３μｍ以北とする
のが好適である。被覆層は拡散防止等の所望の機能性を
向上させる目的で多層構造としても良い。If the thickness of the coating layer 14 is too thick, the coating layer may become brittle, which is uneconomical due to coating processing costs, etc. On the other hand, if it is too thin, the coating layer may disappear due to diffusion and the coating effect may be lost. The thickness of the coating layer is appropriately selected depending on the usage period and usage conditions of the bushing, but it is usually 1 to 10 μm, particularly preferably 3 μm or less. The coating layer may have a multilayer structure for the purpose of improving desired functionality such as diffusion prevention.
被覆層の形成方法としては、特に制限はなく、公知の物
理的又は化学的なコーティング方法を採用し得るが、特
にメッキ法又は真空スパッタリング法を採用するのが、
母材に対する影響が少ないことから好ましい。There are no particular restrictions on the method for forming the coating layer, and any known physical or chemical coating method may be employed, but in particular, plating or vacuum sputtering may be employed.
This is preferable because it has little effect on the base material.
以下、実験例を挙げて本発明の効果をより具体的に説明
する。Hereinafter, the effects of the present invention will be explained in more detail with reference to experimental examples.
実験例ｌ
Ｐｔ−１０爪量％Ｒｈ合金の試料板材（２０ｍｍＸ ２
０ｍｍＸ ｌ ｍｍ厚さ）に、Ｒｈ、Ｐｔ−５ｇ（，１
，−１％Ａｕ合金でそれぞれ、メッキ法により第１表に
示す厚さの被覆層を形成し、各々のサンプルを火気中で
１３５０ ’Ｏに連続加熱し、１０００時間経過後の毛
Ｉ１１増減を調べた。Experimental example l Pt-10 claw amount%Rh alloy sample plate material (20mm x 2
Rh, Pt-5g (,1
, -1% Au alloy, respectively, by a plating method to form a coating layer with the thickness shown in Table 1. Each sample was continuously heated to 1350'O in an open flame, and the increase and decrease in hair I11 after 1000 hours were measured. Examined.
結果を第１表に示す。The results are shown in Table 1.
また比較のため、従来よりブッシング母材として用いら
れているＰ ｔ ｌ Ｏ屯州％Ｒｈ合金、ＰＬ−２０
重量％Ｒｈ合金についても同様に重ｊ正増減を調べ、そ
の結果を第１表に示した。For comparison, PtlO Tunzhou%Rh alloy, PL-20, which has been conventionally used as a base material for bushings.
The weight percentage Rh alloy was similarly examined for weight j change, and the results are shown in Table 1.
第 １ 表
第１表より明らかなように、従来のブッシング母材であ
るＰｔ−Ｒｈ合金は高温酸化揮発損失によりかなりの重
機減少傾向を示すのに対し、本発明に従って、Ｒｈ、Ｐ
ｔ−５屯量Ａｕを被覆したものでは内部のＰｔ−Ｒｈ合
金の揮発が効果的に防にされる。Table 1 As is clear from Table 1, Pt-Rh alloy, which is the conventional bushing base material, shows a considerable tendency to decrease in heavy machinery due to high-temperature oxidation volatilization loss, but according to the present invention, Rh, P
The one coated with t-5 weight Au effectively prevents the internal Pt-Rh alloy from volatilizing.
〔発明の効果コ
以上詳述した通り、本発明のガラスｍ維製造用ブッシン
グは、そのガラス流出部に、ブッシングの母材よりも難
揮発性の物質を被覆したものであって、この難揮発性の
物質により、ブッシング母材が保護されて高温揮発が防
止され、高価な母材合金のロスやブッシングの損傷が良
好に防止される。[Effects of the Invention] As detailed above, the bushing for producing glass fibers of the present invention has its glass outflow portion coated with a substance that is less volatile than the base material of the bushing. The strong substance protects the bushing base material and prevents high-temperature volatilization, thereby effectively preventing loss of expensive base alloy and damage to the bushing.
また、本発明のガラス繊維製造用ブッシングは、既存の
ブッシングを被覆処理することによって作製することも
でき、広汎に適用できる。Furthermore, the bushing for producing glass fibers of the present invention can also be produced by coating an existing bushing, and can be widely applied.
第１図は本発明の一実施例を示すブッシング底面部の一
部の拡大断面図である。第２図はガラスｍ維製造装置を
示す断面図、第３図はブッシングを示す図であって、そ
れぞれ（ａ）は断面図、（ｂ）は底面図である。
５・・・ブッシング、８．１１・・・チッププレート、
９．１２・・・チンブ、 １３・・・溶融ガラス、
１４・・・被覆層。
代理人 弁理士 刊 野 剛
第１図
胆
第２図FIG. 1 is an enlarged sectional view of a portion of the bottom surface of a bushing showing an embodiment of the present invention. FIG. 2 is a sectional view showing a glass m-fiber manufacturing apparatus, and FIG. 3 is a view showing a bushing, in which (a) is a sectional view and (b) is a bottom view. 5... Bushing, 8.11... Chip plate,
9.12... chimbu, 13... molten glass,
14...Covering layer. Agent Patent Attorney Published by Tsuyoshi No Figure 1 Figure 2
Claims (4)
ブッシングの母材よりも難揮発性の物質を被覆したこと
を特徴とするガラス繊維製造用ブッシング。(1) At the glass outflow part of the bushing for glass fiber manufacturing,
A bushing for glass fiber manufacturing characterized by being coated with a substance that is more difficult to volatile than the base material of the bushing.
囲第１項に記載のガラス繊維製造用ブッシング。(2) A bushing for manufacturing glass fiber according to claim 1, wherein the base material of the bushing is a Pt alloy.
Ｐｔ−Ａｕ合金である特許請求の範囲第２項に記載のガ
ラス繊維製造用ブッシング。(3) The bushing for manufacturing glass fiber according to claim 2, wherein the substance that is less volatile than the bushing base material is Rh or a Pt-Au alloy.
さが１〜１０μｍである特許請求の範囲第１項ないし第
３項のいずれか１項に記載のガラス繊維製造用ブッシン
グ。(4) The bushing for manufacturing glass fiber according to any one of claims 1 to 3, wherein the coating thickness of the substance that is less volatile than the base material of the bushing is 1 to 10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4800686A JPS62207737A (en) | 1986-03-05 | 1986-03-05 | Bushing for producing glass fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4800686A JPS62207737A (en) | 1986-03-05 | 1986-03-05 | Bushing for producing glass fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62207737A true JPS62207737A (en) | 1987-09-12 |
Family
ID=12791210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4800686A Pending JPS62207737A (en) | 1986-03-05 | 1986-03-05 | Bushing for producing glass fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62207737A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003048741A (en) * | 2002-04-26 | 2003-02-21 | Furuya Kinzoku:Kk | Bushing for spinning glass fiber using heat resisting alloy |
| JP2012091954A (en) * | 2010-10-26 | 2012-05-17 | Nippon Electric Glass Co Ltd | Bushing |
| JP2020001956A (en) * | 2018-06-27 | 2020-01-09 | 日本電気硝子株式会社 | Bushing, and method for producing glass fiber |
| WO2022224612A1 (en) * | 2021-04-23 | 2022-10-27 | 田中貴金属工業株式会社 | Bushing for producing glass fibers and method for producing glass fibers |
-
1986
- 1986-03-05 JP JP4800686A patent/JPS62207737A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003048741A (en) * | 2002-04-26 | 2003-02-21 | Furuya Kinzoku:Kk | Bushing for spinning glass fiber using heat resisting alloy |
| JP2012091954A (en) * | 2010-10-26 | 2012-05-17 | Nippon Electric Glass Co Ltd | Bushing |
| JP2020001956A (en) * | 2018-06-27 | 2020-01-09 | 日本電気硝子株式会社 | Bushing, and method for producing glass fiber |
| WO2022224612A1 (en) * | 2021-04-23 | 2022-10-27 | 田中貴金属工業株式会社 | Bushing for producing glass fibers and method for producing glass fibers |
| JP2022167675A (en) * | 2021-04-23 | 2022-11-04 | 田中貴金属工業株式会社 | Bushing for manufacturing glass fiber, and method for manufacturing glass fiber |
| US12054417B2 (en) | 2021-04-23 | 2024-08-06 | Tanaka Kikinzoku Kogyo K.K. | Bushing for producing glass fibers and method for producing glass fibers |
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