JPH0638146Y2 - Felting needle - Google Patents
Felting needleInfo
- Publication number
- JPH0638146Y2 JPH0638146Y2 JP1989139501U JP13950189U JPH0638146Y2 JP H0638146 Y2 JPH0638146 Y2 JP H0638146Y2 JP 1989139501 U JP1989139501 U JP 1989139501U JP 13950189 U JP13950189 U JP 13950189U JP H0638146 Y2 JPH0638146 Y2 JP H0638146Y2
- Authority
- JP
- Japan
- Prior art keywords
- needle
- felting
- hardness
- felting needle
- blade
- 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.)
- Expired - Lifetime
Links
Landscapes
- Nonwoven Fabrics (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、フアイバーウェッブに３次元的に繊維のから
み合いを与えて接合するためのニードルパンチ法におい
て用いられるフェルティング針に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a felting needle used in a needle punching method for three-dimensionally entanglement and bonding of fibers to a fiber web.
この種ニードルパンチ法に用いられるニードルルーム
は、第２図に示す如く、多数のフェルティング針（５）
を交換自在に取り付けたニードルボード（６）を、ドラ
イブ（７）によって上、下動させてストリッパプレート
（８）とベッドプレート（９）間を進行するウェッブ
（Ｗ）をからみ合わせて接合するようになしている。As shown in FIG. 2, the needle room used in this kind of needle punching method has a large number of felting needles (5).
The needle board (6), which is attached in a replaceable manner, is moved up and down by the drive (7) so that the web (W) moving between the stripper plate (8) and the bed plate (9) is entangled and joined. I am doing it.
従来フェルティング針としては、重量％でC:0.90〜1.10
の高炭素鋼を針成形後、焼入れ，焼戻しをしたものであ
る。As a conventional felting needle, C: 0.90 to 1.10% by weight
The high carbon steel of No. 1 was needle-formed, then quenched and tempered.
このような従来のフェルティング針では、焼入れ，焼戻
しを行なってもブレード部の硬度はHv630〜720程度であ
るため、上記ニードルルーム内での激しい連続使用に対
して摩耗が激しく、また、ウェッブ含有の水分等により
錆が発生し易く、短期間で交換しなければならなかっ
た。In such a conventional felting needle, the hardness of the blade part is about Hv630 ~ 720 even after quenching and tempering, so that the blade is hard to wear even if it is continuously used in the needle room and the web content is high. Rust is liable to occur due to water content, etc., and had to be replaced in a short period of time.
フェルティング針（５）はニードルボード（６）に多数
植え込まれているため、その交換作業が煩雑で、多くの
時間を要するばかりか、使用寿命が短いことから生産性
を大きく阻害していた。Since many felting needles (5) are implanted in the needle board (6), the replacement work is complicated and requires a lot of time, and the service life is short, which greatly hinders productivity. .
本考案は従来技術の課題を解決し、その目的とするとこ
ろは、ブレード部の硬度を高くして耐摩耗性を向上し、
しかも耐食性に優れたフェルティング針を提供しようと
するものである。The present invention solves the problems of the prior art, and its purpose is to increase the hardness of the blade portion to improve wear resistance,
Moreover, it is intended to provide a felting needle having excellent corrosion resistance.
上記目的を達成するために、本考案に係るフェルティン
グ針は、重量％でC:0.26〜0.80、Si:1.0以下、Mn:1.0以
下、Cr:11〜14、残部Fe及び不純物からなり、内部組成
としてCr炭化物を有し、少なくともブレード部には表面
硬化または表面処理を施してHv800以上の表面硬度を有
して成る。In order to achieve the above object, the felting needle according to the present invention comprises, by weight%, C: 0.26 to 0.80, Si: 1.0 or less, Mn: 1.0 or less, Cr: 11 to 14, balance Fe and impurities, and The composition has Cr carbide, and at least the blade portion has a surface hardness of Hv 800 or more after surface hardening or surface treatment.
ここで各添加元素の化学成分を限定した理由は、次の通
りである。The reason why the chemical composition of each additive element is limited here is as follows.
Ｃは、硬度，強度を確保するため必要であり、適量のCr
炭化物を析出させ、硬度，強度を保持するための0.26％
以上は必要である。C is necessary to secure hardness and strength, and an appropriate amount of Cr
0.26% for precipitating carbides and maintaining hardness and strength
The above is necessary.
しかし、高すぎると、伸線時および成形時にＣ偏析部に
おいて、断線や割れが発生し易いので、0.80％以下が好
ましい。However, if it is too high, disconnection and cracking easily occur in the C segregation portion during wire drawing and molding, so 0.80% or less is preferable.
Si,Mnは、ともに鋼の脱酸のため必要な元素であるが、
多すぎると、Siはフェライトの靱延性が劣化し、SiO2系
の非延性介在物が発生し易い。Both Si and Mn are necessary elements for deoxidizing steel,
If it is too large, the toughness and ductility of Si deteriorates, and SiO 2 -based non-ductile inclusions are likely to occur.
またMnは、成分偏析傾向が強くなり、靱性及び延性を低
下させて成形加工に不利となる。Further, Mn has a strong tendency to segregate the components, which reduces toughness and ductility, which is disadvantageous for molding.
Crは表面に不動態膜を作り、耐食性を向上させるため、
ステンレス鋼に当然必要な元素であり、フェルティング
針の耐食性のため11％以上は必要である。しかし、14％
を超えるとCr炭化物の析出が過多となり、断線や割れが
発生し易い。Since Cr forms a passivation film on the surface and improves corrosion resistance,
This element is naturally necessary for stainless steel, and 11% or more is required due to the corrosion resistance of felting needles. But 14%
If it exceeds, the precipitation of Cr carbides becomes excessive and wire breakage and cracks are likely to occur.
さらに表面硬化または表面処理でブレード部の硬度は、
Hv800以上必要である。Hv800未満であればフェルティン
グ針として耐摩耗性は従来のものと大差はない。Furthermore, the hardness of the blade part by surface hardening or surface treatment is
Hv800 or higher is required. If it is less than Hv800, the abrasion resistance as a felting needle is not much different from the conventional one.
本考案のフェルティング針は、上記化学成分を有する鋼
がマルテンサイト系ステンレス鋼であり耐食性に優れ、
また熱処理（焼入れ，焼戻し）を行なうことによって、
適度のCr炭化物を析出させることができ、耐摩耗性にも
優れている。さらにブレード部には表面焼入れや窒化等
の表面硬化またはPVD,CVD等の表面処理を行なってHv800
以上の表面硬度とすることにより耐摩耗性を向上させ、
同時にニードルパンチをスムーズに行なわせることがで
きる。In the felting needle of the present invention, the steel having the above chemical composition is martensitic stainless steel and has excellent corrosion resistance,
Also, by performing heat treatment (quenching, tempering),
It can deposit an appropriate amount of Cr carbide and has excellent wear resistance. Furthermore, the surface of the blade is hardened by surface hardening or nitriding or surface treatment such as PVD, CVD, etc.
Improves wear resistance by setting the above surface hardness,
At the same time, needle punching can be performed smoothly.
〔実施例１〕 重量％でC:0.78,Si:0.05、Mn:0.04、Cr:12、残部Fe及び
不純物の化学成分を有するマルテンサイト系ステンレス
鋼を、第１図の如く小さなバーブを有するブレード部
（２）の先端に針先端部（３）、上部にシャンク部
（４）を有するフェルティング針（１）に成形加工し、
焼入れ，焼戻しを行ない、適量のCr炭化物を析出させ、
ブレード部（２）にガス軟窒化処理（約530℃×4h）を
行なった。このときのブレード部（２）の表面硬度は、
最外層でHv1100,表面から30μｍ内部ではHv900程度であ
った。[Example 1] A martensite stainless steel having chemical components of C: 0.78, Si: 0.05, Mn: 0.04, Cr: 12, balance Fe and impurities in wt%, and a blade having a small barb as shown in Fig. 1. Formed into a felting needle (1) having a needle tip (3) at the tip of the part (2) and a shank portion (4) at the top,
Quench and temper to deposit an appropriate amount of Cr carbide,
The blade portion (2) was subjected to gas soft nitriding treatment (about 530 ° C. × 4 hours). The surface hardness of the blade part (2) at this time is
The outermost layer had Hv1100, and the inner 30 μm from the surface had Hv900.
〔実施例２〕 重量％でC:0.30、Si:0.01、Mn:0.01、Cr:13、残部Fe及
び不純物の化学成分を有するマルテンサイト系ステンレ
ス鋼を実施例１と同様に成形加工したフェルティング針
（１）に、焼入れ，焼戻しを行ない、適量のCr炭化物を
析出させブレード部（２）にT:NのコーティングをCVDで
行なった。このときのブレード部（２）は表面最外層５
μｍ程度までコーティングでき、その硬度はHv2000程度
であった。[Example 2] Felts formed by forming a martensite stainless steel having chemical components of C: 0.30, Si: 0.01, Mn: 0.01, Cr: 13 and balance Fe and impurities in wt% in the same manner as in Example 1 The needle (1) was quenched and tempered to deposit an appropriate amount of Cr carbide, and the blade portion (2) was coated with T: N by CVD. The blade portion (2) at this time is the outermost layer 5 on the surface.
It could be coated up to about μm, and its hardness was about Hv2000.
これら実施例1,2のフェルティング針を第２図に示すよ
うなニードルボード（６）に植え込みニードルパンチを
行なった。その結果、いずれのフェルティング針も耐食
性が改善され、耐摩耗性も大きく向上し、従来の高炭素
鋼を焼入れ，焼戻ししたフェルティング針に比較してニ
ードルパンチをスムーズに行なうことができ、低強度の
繊維の破損も防止でき、使用寿命も約40％伸びた。The felting needles of Examples 1 and 2 were implanted in a needle board (6) as shown in FIG. 2 and needle punching was performed. As a result, all the felting needles have improved corrosion resistance and greatly improved wear resistance, and needle punching can be performed smoothly compared to conventional high carbon steel quenched and tempered felting needles. It also prevents the breakage of strong fibers and extends the service life by about 40%.
本考案は、素材として特定の化学成分の鋼を用いること
により、また、それのブレード部に表面処理や表面硬化
を行ない、表面硬度をHv800以上としたため耐食性，耐
摩耗性を向上させ、フェルティング針としての使用寿命
を大巾に延長することができ、ニードルパンチ作業を著
しく改善した。The present invention improves the corrosion resistance and wear resistance by using steel with a specific chemical composition as the material, and by performing surface treatment and surface hardening on the blade part of the steel, and improving the surface hardness to Hv 800 or more, and improving the felting. The service life of the needle can be greatly extended and the needle punching work has been significantly improved.
第１図は本考案のフェルティング針の正面図、第２図は
ニードルルームの概略構成図である。 （１）……フェルティング針、（２）……ブレード部 （３）……針先端部、（４）……シャンク部FIG. 1 is a front view of a felting needle of the present invention, and FIG. 2 is a schematic configuration diagram of a needle room. (1) …… Felting needle, (2) …… Blade part (3) …… Needle tip part, (4) …… Shank part
Claims (1)
1.0以下、Cr:11〜14、残部Fe及び不純物からなり、内部
組成としてCr炭化物を有し、少なくともブレード部に表
面硬化または表面処理を施して、Hv800以上の表面硬度
を有したことを特徴とするフェルティング針。1. C: 0.26 to 0.80 by weight%, Si: 1.0 or less, Mn:
1.0 or less, Cr: 11 to 14, consisting of balance Fe and impurities, having a Cr carbide as an internal composition, at least the blade portion is subjected to surface hardening or surface treatment, having a surface hardness of Hv800 or more, Felting needle to do.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989139501U JPH0638146Y2 (en) | 1989-11-30 | 1989-11-30 | Felting needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989139501U JPH0638146Y2 (en) | 1989-11-30 | 1989-11-30 | Felting needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0378091U JPH0378091U (en) | 1991-08-07 |
| JPH0638146Y2 true JPH0638146Y2 (en) | 1994-10-05 |
Family
ID=31686541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989139501U Expired - Lifetime JPH0638146Y2 (en) | 1989-11-30 | 1989-11-30 | Felting needle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638146Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017512248A (en) * | 2013-12-19 | 2017-05-18 | グローツ−ベッカート コマンディトゲゼルシャフト | Textile instrument and method for manufacturing the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5459450A (en) * | 1977-10-17 | 1979-05-14 | Toray Industries | Needle for processing fiber |
| JPS5980490U (en) * | 1982-11-24 | 1984-05-31 | 市川毛織株式会社 | needle for needle punch |
| JPS60243249A (en) * | 1984-05-16 | 1985-12-03 | Hitachi Metals Ltd | Steel for bearing having high resistance to temper softening |
-
1989
- 1989-11-30 JP JP1989139501U patent/JPH0638146Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017512248A (en) * | 2013-12-19 | 2017-05-18 | グローツ−ベッカート コマンディトゲゼルシャフト | Textile instrument and method for manufacturing the same |
| US10487429B2 (en) | 2013-12-19 | 2019-11-26 | Groz-Beckert Kg | Tool for textiles and production method for same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0378091U (en) | 1991-08-07 |
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