JPS62177206A - Spinning nozzle made of ceramic - Google Patents
Spinning nozzle made of ceramicInfo
- Publication number
- JPS62177206A JPS62177206A JP1695886A JP1695886A JPS62177206A JP S62177206 A JPS62177206 A JP S62177206A JP 1695886 A JP1695886 A JP 1695886A JP 1695886 A JP1695886 A JP 1695886A JP S62177206 A JPS62177206 A JP S62177206A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- ceramic
- spinning
- nozzle
- discharge hole
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 26
- 238000009987 spinning Methods 0.000 title claims description 28
- 238000003754 machining Methods 0.000 claims abstract description 7
- 239000007769 metal material Substances 0.000 abstract description 5
- 229910003460 diamond Inorganic materials 0.000 abstract description 3
- 239000010432 diamond Substances 0.000 abstract description 3
- 229910052581 Si3N4 Inorganic materials 0.000 abstract description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 abstract description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract description 2
- 238000009760 electrical discharge machining Methods 0.000 abstract description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052726 zirconium Inorganic materials 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract 4
- 239000004035 construction material Substances 0.000 abstract 1
- 229910010293 ceramic material Inorganic materials 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- JUWSSMXCCAMYGX-UHFFFAOYSA-N gold platinum Chemical compound [Pt].[Au] JUWSSMXCCAMYGX-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/221—Extrusion presses; Dies therefor extrusion dies
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は合成繊維を紡糸するためのセラミックス製紡糸
ノズルに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a ceramic spinning nozzle for spinning synthetic fibers.
ナイロン、ポリエステル等の合成繊維を紡糸するために
一般に用いられる紡糸口金は、ステンレス鋼、金−白金
、白金−ロジウム等の所謂金属製紡糸ノズルである。Spinnerets commonly used for spinning synthetic fibers such as nylon and polyester are so-called metal spinning nozzles such as stainless steel, gold-platinum, platinum-rhodium, and the like.
しかし、これら金属製紡糸ノズルは、使用中の熱作用、
腐蝕作用等によって、吐出孔内壁面に劣化を生じ、やが
て吐出孔が変形して吐出環や糸切れを発生する原因とな
る。However, these metal spinning nozzles are susceptible to thermal effects during use.
Corrosion causes deterioration of the inner wall surface of the discharge hole, which eventually deforms the discharge hole and causes breakage of the discharge ring or thread.
上記欠点を改善するため、最近ではセラミックス製のノ
ズルを用いることが検討されているが、通常のセラミッ
クス材料では熱変形、腐蝕性、耐摩耗性には優れている
が、硬度が高いため加工性が金属に比べ著しく低く、精
度のよい紡糸ノズルが生産できないという決定的な欠陥
を有する。特に紡糸用ノズルの吐出孔は、単なる丸孔の
みならず、Ｙ形、Ｔ形、あるいは星形等の複雑な形状も
要求され、しかも、２〜５μｍという孔形精度をも保持
しなければならないため、通常のセラミックス材では加
工中に吐出孔端部に「欠け」が出やす＜、量産に不向き
であると共に、余りにも高価にならざるを得なくなる。In order to improve the above-mentioned drawbacks, the use of ceramic nozzles has recently been considered. However, although ordinary ceramic materials have excellent thermal deformation, corrosion resistance, and wear resistance, they are difficult to process due to their high hardness. is significantly lower than that of metals, and has a decisive flaw in that highly accurate spinning nozzles cannot be produced. In particular, the discharge hole of a spinning nozzle must not only be a simple round hole, but also have a complex shape such as a Y-shape, T-shape, or star shape, and must also maintain a hole shape accuracy of 2 to 5 μm. For this reason, ordinary ceramic materials tend to "chip" at the end of the discharge hole during processing, making them unsuitable for mass production and making them too expensive.
本発明の目的は、金属製紡糸ノズルに比べ耐熱性、耐蝕
性あるいは耐摩耗性に優れたセラミックスを使用するも
のでありながら、複雑な形状の吐出孔でも精度よく、か
つ量産性を具備したセラミックス製紡糸ノズルを提供す
ることにある。The purpose of the present invention is to use ceramics that have superior heat resistance, corrosion resistance, and abrasion resistance compared to metal spinning nozzles, and to create ceramics that can be used with precision even in complicatedly shaped discharge holes and that can be mass-produced. The purpose of the present invention is to provide a spinning nozzle.
上記目的を達成する本発明のセラミックス製紡糸ノズル
は、ノズル本体に導入孔と吐出孔からなる紡糸孔を備え
た紡糸ノズルにおいて、少なくとも前記吐出孔の部分が
導電性セラミックスで構成されていることを特徴とする
ものである。The ceramic spinning nozzle of the present invention which achieves the above object is a spinning nozzle having a spinning hole consisting of an introduction hole and a discharge hole in the nozzle body, wherein at least a portion of the discharge hole is made of conductive ceramics. This is a characteristic feature.
〔実施例〕 以下、本発明を図に示す実施例によって説明する。〔Example〕 Hereinafter, the present invention will be explained with reference to embodiments shown in the drawings.
第１図は、本発明のセラミックス製紡糸ノズルの平面図
、第２図は第１図のＡ−Ａ断面図を示す。これらの図に
おいて、■はノズル本体で、２はノズル本体１を貫通す
るように設けられた紡糸孔である。ノズル本体１は、導
電性セラミックスで構成されており、紡糸孔２は入口側
の導入孔３と、連結部４を介して吐出孔５とを有するよ
うに形成されている。吐出孔５の平面視の形状は丸形で
あったり、あるいは第５図や第６図に示すような非円形
であったりする。FIG. 1 is a plan view of the ceramic spinning nozzle of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1. In these figures, ■ is a nozzle main body, and 2 is a spinning hole provided so as to penetrate the nozzle main body 1. The nozzle body 1 is made of conductive ceramics, and the spinning hole 2 is formed to have an introduction hole 3 on the inlet side and a discharge hole 5 via a connecting part 4. The shape of the discharge hole 5 in plan view may be round or non-circular as shown in FIGS. 5 and 6.
ここで導電性セラミックスとしては、例えば窒化チタン
を添加した窒化珪素や、硼化ジルコニウム等が使用でき
る。このような導電性セラミックスは放電加工が可能で
あるため、ダイヤモンド砥石などの切削工具で孔加工す
るときのような「欠け」を発生することがなく、通常の
金属材と同等な加工精度が得られる。Here, as the conductive ceramic, for example, silicon nitride added with titanium nitride, zirconium boride, etc. can be used. Since such conductive ceramics can be processed by electrical discharge machining, they do not cause the "chips" that occur when drilling holes with cutting tools such as diamond grindstones, and can achieve machining accuracy equivalent to that of ordinary metal materials. It will be done.
通常のアルミナ、ジルコニア等のセラミックス材は、非
導電性のため、超音波加工ないしはダイヤモンド砥石に
よる機械加工をせざるを得ないが、その加工には長時間
かかり、非能率であるだけでなく、特に微細な吐出孔の
出口部分で「欠け」を発生しやすく、紡糸ノズルに要求
されるシャープエツジを形成することが困難である。Ordinary ceramic materials such as alumina and zirconia are non-conductive, so they must be processed by ultrasonic processing or mechanical processing using a diamond grindstone, but this process not only takes a long time and is inefficient; In particular, "chipping" is likely to occur at the exit portion of the fine discharge holes, making it difficult to form the sharp edges required for the spinning nozzle.
上述した導電性セラミックス材であれば、電極工具によ
る放電作用を利用するため機械加工に比べてシャープな
エツジの加工が可能であると共に、５０μｍから５００
μｍの微細加工も可能となり、しかも、金属材と同等の
加工時間で能率的に生産できるようになる。With the above-mentioned conductive ceramic material, it is possible to process sharp edges compared to machining because it utilizes the electric discharge action of the electrode tool, and it is also possible to process sharp edges from 50 μm to 500 μm.
Micro-fabrication of micrometers becomes possible, and moreover, it can be efficiently produced in the same machining time as metal materials.
第３図は、本発明の他の実施例を示し、ノズル本体１′
に従来のステンレス鋼、金、白金等の金属材が使用され
、紡糸孔２の部分だけを、導入孔３、連結部４、吐出孔
５を有する導電性セラミックス材からなるピース７で加
工し、これを嵌着したものである。FIG. 3 shows another embodiment of the invention, in which the nozzle body 1'
Conventional metal materials such as stainless steel, gold, platinum, etc. are used for this purpose, and only the spinning hole 2 is processed with a piece 7 made of a conductive ceramic material having an introduction hole 3, a connecting portion 4, and a discharge hole 5. This is fitted.
第４図はさらに他の実施例を示し、金属材からなるノズ
ル本体１＃に紡糸孔２の導入孔３だけを形成し、連結部
４と吐出孔５は導電性セラミックスで構成したピース８
に加工し、これを上記ノズル本体１″に嵌着したもので
ある。FIG. 4 shows still another embodiment, in which only the introduction hole 3 of the spinning hole 2 is formed in the nozzle body 1# made of a metal material, and the connecting part 4 and the discharge hole 5 are made of a piece 8 made of conductive ceramics.
This is then fitted into the nozzle body 1''.
上記ノズル本体１’、１’とピース６．７との嵌着は低
融点ガラス、耐熱性接着剤等を用いて接着させることが
できる。第３図、第４図の紡糸ノズル構造は、導電性セ
ラミックスを使用する部分が少ないため材料費を低減で
きると共に、吐出孔の加工途中、あるいは紡糸ノズルの
使用中に吐出孔の精度がスペックアウトしても、ピース
の部分だけを取り替えるのみでよいため歩留りがよく、
しかも長期の使用に耐えるという効果を有するため有利
である。The nozzle bodies 1', 1' and the pieces 6.7 can be attached using low-melting glass, heat-resistant adhesive, or the like. The spinning nozzle structure shown in Figures 3 and 4 uses fewer parts of conductive ceramics, which reduces material costs, and the accuracy of the discharge hole exceeds specifications during machining of the discharge hole or while the spinning nozzle is in use. However, since only the pieces need to be replaced, the yield is high.
Moreover, it is advantageous because it has the effect of being durable for long-term use.
上述したように、本発明のセラミックス製紡糸ノズルは
、少なくとも吐出孔の部分に導電性セラミックスを使用
しているため、耐熱性、耐摩耗性、耐蝕性に優れた特長
を発揮すると共に、「欠け」のない情度の高い吐出孔を
得ることができる。また、セラミックス製でありながら
能率的、かつ低コストで量産することができる。As mentioned above, since the ceramic spinning nozzle of the present invention uses conductive ceramics at least in the discharge hole, it exhibits excellent heat resistance, abrasion resistance, and corrosion resistance, and is also free from chipping. It is possible to obtain a discharge hole with a high degree of sensitivity without "." Furthermore, although it is made of ceramics, it can be mass-produced efficiently and at low cost.
第１図は本発明の実施例からなるセラミックス製紡糸ノ
ズルの平面図、第２図は第１図のＡ−Ａ断面図である。
第３図、第４図はそれぞれ他の実施例を示す断面図であ
る。第５図、第６図はそれぞれ吐出孔の一例を示す平面
図である。
１、ｌ’、１’・・・ノズル本体、２・・・紡糸孔、３
・・・導入孔、５・・・吐出孔、７，８ピース。FIG. 1 is a plan view of a ceramic spinning nozzle according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA in FIG. 1. 3 and 4 are sectional views showing other embodiments, respectively. FIG. 5 and FIG. 6 are plan views each showing an example of the discharge hole. 1, l', 1'... Nozzle body, 2... Spinning hole, 3
...Introduction hole, 5...Discharge hole, 7, 8 pieces.
Claims (4)
えた紡糸ノズルにおいて、少なくとも前記吐出孔の部分
が導電性セラミックスで構成されているセラミックス製
紡糸ノズル。(1) A spinning nozzle comprising a spinning hole consisting of an introduction hole and a discharge hole in a nozzle body, in which at least a portion of the discharge hole is made of conductive ceramics.
形成され、このピースが導電性セラミックスからなる特
許請求の範囲第１項記載のセラミックス製紡糸口金。(2) The ceramic spinneret according to claim 1, wherein the spinning hole portion is formed in a piece fitted into the nozzle body, and the piece is made of conductive ceramic.
ピースに形成され、このピースが導電性セラミックスか
らなる特許請求の範囲第１項記載のセラミックス製紡糸
口金。(3) The ceramic spinneret according to claim 1, wherein the discharge hole portion of the spinning hole is formed in a piece fitted into the nozzle body, and this piece is made of conductive ceramic.
求の範囲第１項記載のセラミックス製紡糸口金。(4) The ceramic spinneret according to claim 1, wherein the discharge hole is formed by electric discharge machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1695886A JPS62177206A (en) | 1986-01-30 | 1986-01-30 | Spinning nozzle made of ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1695886A JPS62177206A (en) | 1986-01-30 | 1986-01-30 | Spinning nozzle made of ceramic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62177206A true JPS62177206A (en) | 1987-08-04 |
Family
ID=11930617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1695886A Pending JPS62177206A (en) | 1986-01-30 | 1986-01-30 | Spinning nozzle made of ceramic |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62177206A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157910A (en) * | 1993-12-02 | 1995-06-20 | Keiichi Murakami | Spinneret for spinning |
| US6682672B1 (en) | 2002-06-28 | 2004-01-27 | Hercules Incorporated | Process for making polymeric fiber |
-
1986
- 1986-01-30 JP JP1695886A patent/JPS62177206A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157910A (en) * | 1993-12-02 | 1995-06-20 | Keiichi Murakami | Spinneret for spinning |
| US6682672B1 (en) | 2002-06-28 | 2004-01-27 | Hercules Incorporated | Process for making polymeric fiber |
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