JPS63227805A - Spinneret - Google Patents
SpinneretInfo
- Publication number
- JPS63227805A JPS63227805A JP24275286A JP24275286A JPS63227805A JP S63227805 A JPS63227805 A JP S63227805A JP 24275286 A JP24275286 A JP 24275286A JP 24275286 A JP24275286 A JP 24275286A JP S63227805 A JPS63227805 A JP S63227805A
- Authority
- JP
- Japan
- Prior art keywords
- spinneret
- plate
- spinning
- carbon fiber
- electrical insulating
- 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
- 238000009987 spinning Methods 0.000 claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910018967 Pt—Rh Inorganic materials 0.000 claims abstract description 7
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 17
- 239000004917 carbon fiber Substances 0.000 description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 16
- 239000011550 stock solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012777 electrically insulating material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、カーボン繊維の原糸製造に用いる紡糸口金に
関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a spinneret used for producing carbon fiber yarn.
（従来の技術とその問題点）
従来紡糸口金の材料としては、ステンレス鋼が主に用い
られてきたが、このステンレス鋼より成る紡糸口金でカ
ーボン繊維の原糸を溶融紡糸する時は、紡糸する原液で
あるピッチＰの恒温化を図っている為、第２図の示す如
く紡糸口金１の外周をヒータ４にて加熱していた。(Conventional technology and its problems) Stainless steel has been mainly used as the material for conventional spinnerets, but when melt-spinning carbon fiber yarn with a spinneret made of stainless steel, it is difficult to spin In order to maintain a constant temperature of the pitch P, which is the stock solution, the outer periphery of the spinneret 1 was heated with a heater 4 as shown in FIG.
然し乍ら、この手段でも、紡糸口金１全体の温度が不均
一である為、紡糸されたカーボン繊維の原糸が放射状に
割れたり、渦巻状に層状化したりして断面組織が不安定
となり、しかも糸切れ等が生じている。このような現象
は、紡糸口金１が大きくなればなるほど、外周部と中央
部との温度差が大きくなる為、発生する。However, even with this method, since the temperature of the entire spinneret 1 is non-uniform, the spun carbon fiber yarn may crack radially or become spirally layered, resulting in an unstable cross-sectional structure. Cuts, etc. have occurred. Such a phenomenon occurs because the larger the spinneret 1 becomes, the larger the temperature difference between the outer circumference and the center becomes.
そこで本発明は、紡糸口金の各紡糸孔の高温均一化を図
って、紡糸されるカーボン繊維の原糸断面組織の安定化
を図ると共に、糸切れ等を解消することのできるカーボ
ン繊維の原糸製造用紡糸口金を提供しようとするもので
ある。Therefore, the present invention aims to make the temperature of each spinning hole of the spinneret uniform, thereby stabilizing the cross-sectional structure of the raw carbon fiber to be spun, as well as eliminating yarn breakage. The present invention seeks to provide a manufacturing spinneret.
（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技術的な手段は、ステンレ
ス鋼の紡糸口金に於ける紡糸孔表面部が、電気絶縁材を
介して接合された、Ｐｔ、Ｐｔ−Ｒｈ合金、酸化物分散
型Ｐｔのいずれかより成ることを特徴とするものである
。(Means for Solving the Problems) A technical means for solving the above problems is that the surface portion of the spinning hole in the stainless steel spinneret is connected via an electrically insulating material to Pt, It is characterized by being made of either a Pt-Rh alloy or oxide-dispersed Pt.
（作用）
本発明のカーボン繊維の原糸製造用紡糸口金は、上記の
如く紡糸孔表面部が、電気絶縁材を介して接合されたＰ
ｔ、Ｐｔ−Ｒｈ合金、酸化物分散型Ｐｔのいずれかより
成るので、紡糸の時、紡糸孔表面部に通電し加熱するこ
とにより、各紡糸孔が高温均一化する。従って、カーボ
ン繊維の原液であるピッチが軟らかくなって、スムース
に紡糸されるので糸切れ等が生じることなく、しかも放
射状に割れたり、渦巻状に層状化したすせず、断面組織
の安定したカーボン繊維の原糸が得られる。(Function) The spinneret for producing raw carbon fiber yarn of the present invention has a spinneret in which the surface portion of the spinning hole is joined via an electrically insulating material as described above.
Since it is made of either Pt, Pt-Rh alloy, or oxide-dispersed Pt, during spinning, by applying electricity to the surface of the spinning hole and heating it, the high temperature of each spinning hole is made uniform. Therefore, the pitch, which is the stock solution of carbon fiber, becomes soft and the yarn is spun smoothly, so there is no breakage, etc., and there is no radial cracking or spiral layering, and the carbon fiber has a stable cross-sectional structure. A fiber yarn is obtained.
（実施例）
本発明のカーボン繊維の原糸製造用紡糸口金の一実施例
を第１図によって説明すると、１０はステンレス鋼より
成る直径１０（ｂｍ、厚さ１５ｍの紡糸口金板で、この
紡糸口金板１０に、直径１００鶴、厚さ１１■の電気絶
縁材、本例ではＡｌＯ３板１１が接合され、そのＡｚｚ
ｏｓ板１１の板面１、直径１００璽■、厚さ１０鰭で、
紡糸孔の設けられる位置に直径３寵、長さ５ｎ＋の円形
突起１２を一体に設けたＰｔ−Ｒｈ２０ｗｔ％合金板１
３が接合され、そのＰ ｔ −Ｒｈ２０ｗｔ％合金板１
３の表面に、前記円形突起１２に対応する位置に直径１
００龍の透孔１４を設けた直径５鶴、厚さＩＲのＡｌｔ
ｏｓ板１５が板台５れ、さらにそのＡｉｔＯｘ板１５の
板面５、直径１００龍、厚さ４龍で前記円形突起１２に
対応する位置に直径７ｎの透孔１６を設けたステンレス
鋼の紡糸口金１０′が接合されている。そして紡糸口金
１０、Ａ ｌ ｚ Ｏ３板１１、Ｐ ｔ −Ｒｈ２０ｗ
ｔ％合金板１３の所定位置に、直径２龍、長さ１９鰭の
導入孔１７とこれに連なる直径０．２龍、長さ０ 、４
ｍｍの吐出孔１８とより成る紡糸孔１９が１０１Ｉ１
間隔に６０個貫通穿設されている。Ｐｔ−Ｒｈ２０社％
合金板１３の外周側には端子１３′が一体に設けられ、
これに電１２０が接続されている。尚、紡糸口金板１０
′の表面の外周側には、幅１０龍、深さ２ｍｌの環状段
部２１が設けられている。(Example) An example of the spinneret for producing yarn of carbon fiber of the present invention will be described with reference to FIG. An electrical insulating material having a diameter of 100 mm and a thickness of 11 cm, in this example an AlO3 plate 11, is bonded to the base plate 10, and its Azz
OS plate 11, plate side 1, diameter 100 mm, thickness 10 fins,
Pt-Rh 20wt% alloy plate 1 integrally provided with a circular protrusion 12 having a diameter of 3 mm and a length of 5 n+ at the position where the spinning hole is provided.
3 is joined, and its Pt-Rh20wt% alloy plate 1
3 with a diameter of 1 at a position corresponding to the circular protrusion 12.
Alt with diameter 5 and thickness IR with 00 dragon through hole 14
The OS plate 15 is placed on the plate base 5, and the plate surface 5 of the AitOx plate 15 has a diameter of 100mm and a thickness of 4mm, and a through hole 16 with a diameter of 7n is provided at a position corresponding to the circular protrusion 12. A cap 10' is joined. And spinneret 10, Al z O3 plate 11, P t -Rh 20w
At a predetermined position on the t% alloy plate 13, an introduction hole 17 with a diameter of 2 mm and a length of 19 fins is connected to an introduction hole 17 with a diameter of 0.2 mm and a length of 0 mm and 4 mm.
The spinning hole 19 consisting of the mm discharge hole 18 is 101I1.
There are 60 perforations at intervals. Pt-Rh20%
A terminal 13' is integrally provided on the outer peripheral side of the alloy plate 13,
A power source 120 is connected to this. In addition, the spinneret plate 10
An annular stepped portion 21 with a width of 10 mm and a depth of 2 ml is provided on the outer circumferential side of the surface of '.
斯かる構成の紡糸口金２２を用いてカーボン繊維を紡糸
する際、Ｐ ｔ −Ｒｈ２０ｗｔ％合金板１３に通電し
加熱すると、紡糸口金２２が加熱され、特に各紡糸孔１
９の前半部、即ち各導入孔１７の先端部と各吐出孔１８
全体が加熱されて、高温均一化する。従って、カーボン
繊維の原液であるピッチが軟らかくなって、スムースに
紡糸されるので、得られるカーボン繊維の原糸は糸切れ
が無く、しかも従来のように放射状に割れたり、渦巻状
に層状化したりすることなく、断面組織の安定したもの
となる。When spinning carbon fiber using the spinneret 22 having such a configuration, when the P t -Rh 20wt% alloy plate 13 is heated and heated, the spinneret 22 is heated, and in particular each spinning hole 1 is heated.
9, that is, the tip of each introduction hole 17 and each discharge hole 18
The entire body is heated to a uniform high temperature. Therefore, the pitch, which is the stock solution of carbon fiber, is softened and spun smoothly, so that the resulting carbon fiber yarn does not break radially or form spiral layers like in the past. The cross-sectional structure becomes stable without any damage.
（発明の効果）
以上の説明で判るように本発明のカーボン繊維の原糸製
造用紡糸口金は、紡糸孔表面部が、電気絶縁材を介して
接合されたＰｔ、Ｐｔ−Ｒｈ合金、酸化物分散型Ｐｔの
いずれかより成るので、カーボン繊維の原糸を紡糸する
際、紡糸孔表面部に通電し加熱すると、紡糸口金とりわ
け各紡糸孔の前半部全体が加熱されて高温均一化する。(Effects of the Invention) As can be seen from the above description, the spinneret for producing raw carbon fiber yarn of the present invention has a spinneret in which the surface of the spinning hole is made of Pt, Pt-Rh alloy, or oxide bonded via an electrical insulating material. Since it is made of dispersed Pt, when spinning carbon fiber raw yarn, when the surface of the spinning hole is heated by electricity, the spinneret, especially the entire front half of each spinning hole, is heated to make the temperature uniform.
従って、カーボン繊維の原液であるピッチが軟らかくな
り、スムースに紡糸されるので、操業性が向上し、また
糸切れ等が生じることがなく、しかも放射状に割れたり
、渦巻状に層状化したすせず、断面ｍ織の安定した、寸
法精度の高い品質良好なカーボン繊維が得られるという
優れた効果がある。Therefore, the pitch, which is the raw solution of carbon fiber, becomes soft and can be spun smoothly, improving operability and preventing yarn breakage. First, there is an excellent effect in that carbon fibers with a stable cross-sectional M weave, high dimensional accuracy, and good quality can be obtained.
第一すは本発明のカーボン繊維の原糸製造用紡糸口金の
断面図、第２図は従来のカーボン繊維の原糸製造用紡糸
口金の断面図である。
出願人 田中貴金属工業株式会社
第１図
第２図
手続補正書（方式）
％式％
１、事件の表示
昭和６１年特許願第２４２７５２号
２、発明の名称
紡糸口金
３、補正をする者
事件との関係 特許出願人
昭和６３年３月２９日
５、補正の対象
明細書の図面の簡単な説明の欄
６、補正の内容The first figure is a cross-sectional view of a spinneret for producing raw carbon fiber yarn of the present invention, and the second figure is a cross-sectional view of a conventional spinneret for producing raw carbon fiber yarn. Applicant Tanaka Kikinzoku Kogyo Co., Ltd. Figure 1 Figure 2 Procedural amendment (method) % formula % 1. Indication of the case 1985 Patent Application No. 242752 2. Name of the invention Spinneret 3. Person making the amendment Case and Relationship between Patent applicant March 29, 1988 5, Brief description of drawings in the specification subject to amendment 6, Contents of amendment
Claims (1)
絶縁材を介して接合されたＰｔ、Ｐｔ−Ｒｈ合金、酸化
物分散型Ｐｔのいずれかより成ることを特徴とする紡糸
口金。1. A spinneret made of stainless steel, wherein the surface of the spinning hole is made of any one of Pt, Pt-Rh alloy, and oxide-dispersed Pt bonded via an electrical insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24275286A JPS63227805A (en) | 1986-10-13 | 1986-10-13 | Spinneret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24275286A JPS63227805A (en) | 1986-10-13 | 1986-10-13 | Spinneret |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63227805A true JPS63227805A (en) | 1988-09-22 |
Family
ID=17093740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24275286A Pending JPS63227805A (en) | 1986-10-13 | 1986-10-13 | Spinneret |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63227805A (en) |
-
1986
- 1986-10-13 JP JP24275286A patent/JPS63227805A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3807917A (en) | Apparatus for spinning sheath-core type composite fibers | |
| ES382379A1 (en) | Profiled electrode for electro-erosive boring | |
| KR880700109A (en) | Spring reversible deformable carbon fiber and its manufacturing method | |
| GB1265347A (en) | ||
| JPS63227805A (en) | Spinneret | |
| JPS6392709A (en) | Spinneret | |
| JPS6399310A (en) | Spinneret | |
| JPS60199911A (en) | Spinneret for hollow yarn spinning and its preparation | |
| CN2239973Y (en) | Spinnerette for spinning four-hole tri-dimensional curling polyester staple | |
| JPH0436076Y2 (en) | ||
| JPS58136833A (en) | Spinning device for pitch carbon fiber | |
| JPH11302916A (en) | Dry and wet type spinneret for fiber having odd-shaped cross section | |
| JPH0310633Y2 (en) | ||
| JPS62265142A (en) | Production of bushing for spinning irregular shaped glass fiber | |
| JPS60192633A (en) | Multiple-needle electrode for mimeograph processing | |
| JPH0729621Y2 (en) | Step Through Capacitor | |
| JPH0645474B2 (en) | Bushing plate for glass fiber manufacturing | |
| KR880002667Y1 (en) | Nozzle | |
| JPH038810A (en) | Spinneret for carbon fiber | |
| JPH0232690Y2 (en) | ||
| KR910007556B1 (en) | Spinning nozzle for shaped fiber | |
| JPH07305219A (en) | Production of polynosic fiber with modified cross-section | |
| KR970043385A (en) | Three seconds composite fiber spinning pack | |
| KR870003326Y1 (en) | Fan | |
| JPH01250416A (en) | Spinneret for carbon fiber |