JPH0748731A

JPH0748731A - Ring for spinning machinery

Info

Publication number: JPH0748731A
Application number: JP19570093A
Authority: JP
Inventors: Naoyuki Morimoto; 直之森本
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-06
Filing date: 1993-08-06
Publication date: 1995-02-21

Abstract

PURPOSE:To provide a ring for spinning machinery, having a high surface hardness, capable of maintaining stable spinning performances for a long period without causing the seizure of a traveler in an early stage and excellent in abrasion and corrosion resistances. CONSTITUTION:This ring for spinning machinery is obtained by forming a chromium-plated layer, containing 1-5% carbon and having an amorphous structure on at least a flange surface in contact with a traveler and regulating the hardness (Hv) of the plating layer to 1200-1800 by heat treatment.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は紡績の精紡に使用され、
特に耐摩耗性において優れた性能を発揮する紡機用リン
グに関するものである。BACKGROUND OF THE INVENTION The present invention is used in spinning for spinning.
In particular, the present invention relates to a ring for a spinning machine that exhibits excellent wear resistance.

【０００２】[0002]

【従来の技術】従来、紡機用リングは一般に低炭素鋼が
用いられ、表面硬化処理として浸炭焼入れが行なわれて
いる。2. Description of the Related Art Conventionally, low carbon steel is generally used for spinning rings, and carburizing and quenching is performed as a surface hardening treatment.

【０００３】[0003]

【発明が解決しようとする課題】しかし、上記従来のリ
ングでは、スピンドル回転数が１８０００r.p.m.以上で
は、リングとトラベラの摩擦抵抗の増大と摩擦熱の急激
な上昇のため、トラベラが早期に焼付き、飛散し、リン
グフランジの摩耗が進み、連続運転ができないという問
題があった。そのため、リング表面に窒化処理を施した
り、金属間化合物の拡散層を形成する方法も考えられて
いる。しかし、硬化層の靱性が低く剥離し易かったり、
トラベラとのなじみが悪く、トラベラが焼付く等の問題
があり、特に高速紡出や太番手糸紡出等の苛酷な条件で
は安定操業できないという問題があった。However, in the above-mentioned conventional ring, when the spindle speed is 18000 rpm or more, the traveler is burned early because of an increase in the friction resistance between the ring and the traveler and a sharp rise in friction heat. However, there was a problem that it could not be continuously operated due to the attachment, scattering, and wear of the ring flange. Therefore, methods of nitriding the ring surface or forming a diffusion layer of an intermetallic compound have been considered. However, the toughness of the hardened layer is low and peeling is easy,
There is a problem that it is not well compatible with the traveler and the traveler is seized, and in particular, it cannot operate stably under severe conditions such as high-speed spinning and thick yarn spinning.

【０００４】また、硬質クロームめっき層をリング表面
に形成する方法もあるが、高速紡出や太番手糸紡出等の
苛酷な紡出条件では、めっき層が剥離し、連続運転がで
きないという問題があった。There is also a method of forming a hard chrome plating layer on the ring surface, but under severe spinning conditions such as high speed spinning and thick yarn spinning, the plating layer peels off and continuous operation cannot be performed. was there.

【０００５】[0005]

【課題を解決するための手段】上記問題点を解決するた
めに本発明の紡機用リングは、炭素を１〜５％含有する
非晶質構造のクロムめっき層を形成し、熱処理によりめ
っき層の硬度をHv１２００〜１８００としたものであ
る。また、上記めっき層のトラベラとの接触表面の粗さ
を中心線平均粗さ(Ra)で0.２μm 以下とし、めっき層の
厚さを１〜３０μm としてなる。In order to solve the above-mentioned problems, the spinning ring of the present invention forms a chromium plating layer having an amorphous structure containing 1 to 5% of carbon, and heat-treating the plated layer to form a chromium plating layer. The hardness is Hv 1200 to 1800. The roughness of the contact surface of the plating layer with the traveler is 0.2 μm or less in terms of center line average roughness (Ra), and the thickness of the plating layer is 1 to 30 μm.

【０００６】なお、非晶質構造のクロムめっき層の炭素
の含有量を１〜５％としたが、１％未満であるとめっき
層の硬度が上らず、また５％を超えるとめっき層が脆化
して剥離しやすくなる。また、めっき層の硬度をHv１２
００〜１８００としたが、Hv１２００未満であると耐摩
耗性に劣り、Hv１８００を超えるとなじみ性が劣るもの
である。The carbon content of the chromium plating layer having an amorphous structure is set to 1 to 5%, but if it is less than 1%, the hardness of the plating layer does not increase, and if it exceeds 5%, the plating layer has a high hardness. Becomes brittle and easily peels off. Also, the hardness of the plating layer is Hv12
Although it was set to 00 to 1800, if it is less than Hv 1200, the wear resistance is poor, and if it exceeds Hv 1800, the conformability is poor.

【０００７】また、表面粗さを Ra 0.２μm 以下とした
が、 Ra 0.２μm を超えると、リングとトラベラ間の摺
動性が悪化し、始動時の糸切れが多発するばかりか、高
速回転域において摩擦抵抗指数が急激に上昇し、トラベ
ラの早期焼付き、飛散が発生して連続運転が不可能とな
る。また、上記めっき層の厚さを１〜３０μm とした
が、１μm 未満では充分な耐摩耗性が得られず、３０μ
m を超えるとコストアップとなり、経済的に好ましくな
い。Although the surface roughness is Ra 0.2 μm or less, when Ra 0.2 μm or more, the slidability between the ring and the traveler is deteriorated, and not only frequent thread breakage at the start but also high speed is achieved. The frictional resistance index rises sharply in the rotation range, causing the traveler to seize early and scatter, making continuous operation impossible. The thickness of the plating layer is set to 1 to 30 μm, but if it is less than 1 μm, sufficient wear resistance cannot be obtained, and
If it exceeds m, the cost increases, which is not economically preferable.

【０００８】[0008]

【作用】本発明の紡機用リングは、リングフランジ表面
に炭素を１〜５％含有する非晶質構造のクロムめっき層
を形成し、熱処理によりめっき層の硬度をHv１２００〜
１８００とし、また、表面粗さを Ra 0.２μm 以下と
し、かつめっき層の厚さを１〜３０μm としたことによ
り、リング自体の耐摩耗性および耐食性を向上すると共
に、リングフランジ上を摺動するトラベラの摩耗も減少
し、高回転高速操業に適するものである。In the ring for spinning machine of the present invention, a chromium plating layer having an amorphous structure containing 1 to 5% of carbon is formed on the surface of the ring flange, and the hardness of the plating layer is Hv 1200 to Hv 1200 by heat treatment.
1800, the surface roughness Ra is 0.2 μm or less, and the thickness of the plating layer is 1 to 30 μm, the wear resistance and corrosion resistance of the ring itself are improved and the ring flange slides. It also reduces wear on the traveler and is suitable for high speed and high speed operation.

【０００９】[0009]

【実施例】以下、本発明の紡機用リングの一実施例を図
面に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a spinning ring of the present invention will be described below with reference to the drawings.

【００１０】（実施例１）図１、図２に示すように、炭
素工具鋼材を所要のリング形状に切削加工し、焼入れ焼
戻し及び表面処理を施してリング１を形成する。上記リ
ング１のリングフランジ３を含む全表面に下記のめっき
条件で炭素を２〜４％含有する非晶質構造のクロムめっ
き層２を厚さ５μm 形成する。(Example 1) As shown in FIGS. 1 and 2, a ring 1 is formed by cutting a carbon tool steel material into a required ring shape, quenching and tempering and surface-treating. A chromium plating layer 2 having an amorphous structure containing 2 to 4% of carbon is formed on the entire surface of the ring 1 including the ring flange 3 to a thickness of 5 μm under the following plating conditions.

【００１１】めっき液組成：Ｃr Ｏ₃ ：１００g/l Ｈ₂ＳＯ₄：５g/l ＨＣＯＯＨ：１０〜２０ml/l 電着条件：浴温：１５〜４０℃ 電流密度：２０〜４０Ａ/dm² Plating solution composition: Cr O ₃ : 100 g / l H ₂ SO ₄ : 5 g / l HCOOH: 10-20 ml / l Electrodeposition condition: Bath temperature: 15-40 ° C. Current density: 20-40 A / dm ²

【００１２】次いで、雰囲気炉において４００℃で１時
間加熱することによりめっき層の硬度をHv１６００とし
た。更にトラベラの接触、摺動するフランジ３の表面に
ラッピング等の研摩加工を施し、表面粗さ Ra 0.１μm
の平滑な表面とし、本発明の紡機用リングを構成する。Then, the hardness of the plated layer was set to Hv1600 by heating at 400 ° C. for 1 hour in an atmosphere furnace. Further, the surface of the flange 3 that contacts and slides with the traveler is subjected to polishing such as lapping to obtain a surface roughness Ra of 0.1 μm.
To form a smoothing ring, which constitutes the spinning machine ring of the present invention.

【００１３】図３に上記本発明の紡機用リングＡと従来
のリング（浸炭焼入品Ｂ）の断面硬度分布曲線を示し、
本発明の紡機用リングは硬度Hv約１６００と高硬度を形
成することができる。FIG. 3 shows cross-sectional hardness distribution curves of the ring A for spinning machine of the present invention and the conventional ring (carburized and quenched product B).
The spinning ring of the present invention can form a high hardness with a hardness Hv of about 1600.

【００１４】上記実施例で得られた紡機用リングを用い
て摩耗テストを行なった時のテスト時間と摩耗量の関係
を図４に示す。なお、テスト条件は次の通りである。FIG. 4 shows the relationship between the test time and the amount of wear when a wear test was carried out using the spinning ring obtained in the above example. The test conditions are as follows.

【００１５】（テスト条件）紡出糸：レーヨン３０番手スピンドル回転数：１３０００r.p.m. リング：3.２mmＦ４５φ×５7.５mm トラベラ：ＺＳＣ／hf No５図４より本発明の紡機用リングＡは、従来のリングＢに
比較し摩耗が少なく、寿命が長いことが判明した。(Test conditions) Spinning yarn: Rayon 30th, Spindle speed: 13000 rpm Ring: 3.2mmF 45φ × 57.5mm Traveler: ZSC / hf No5 From FIG. 4, the spinning ring A of the present invention is conventional. It was found that the wear was less and the life was longer than that of the ring B.

【００１６】また、運転時間と糸切れ数との関係を示す
グラフを図５に示す。但し、紡出条件は次の通りであ
る。A graph showing the relationship between the operating time and the number of yarn breakages is shown in FIG. However, the spinning conditions are as follows.

【００１７】（紡出条件）紡出糸：綿コーマ４０番手スピンドル回転数：１８５００r.p.m. リング：3.２mmＦ３８φ×５7.５mm トラベラ：ＹＳ−２／hf 4/0 従来品Ｂに比べ本発明の紡機用リングＡは、運転初期よ
り糸切れが少なく、長期的に見ても平均の糸切れレベル
が低く、安定した紡調が維持できることが判明した。(Spinning Conditions) Spinning yarn: Cotton comb 40th, Spindle speed: 18500 rpm Ring: 3.2mm F 38φ × 57.5mm Traveler: YS-2 / hf 4/0 Compared with the conventional product B, the present invention It was found that the spinning ring A had less yarn breakage than in the initial stage of operation, had a low average yarn breakage level over a long period of time, and could maintain stable spinning.

【００１８】（実施例２）実施例１で形成されたリング
１の表面に下記のめっき条件で厚さ１０μm の非晶質構
造のクロムめっき層２を形成し、熱処理することにより
めっき層の硬度Hv１７００の本発明の紡機用リングを構
成した。(Embodiment 2) A chromium plating layer 2 having a thickness of 10 μm and having an amorphous structure is formed on the surface of the ring 1 formed in Embodiment 1 under the following plating conditions, and the hardness of the plating layer is heat-treated. An Hv1700 spinning ring of the invention was constructed.

【００１９】めっき液組成：Ｃr Ｏ₃：２００g/l （ＮＨ₄)₂ＳＯ₄：７５g/l Ｈ₂Ｃ₂Ｏ₄・２Ｈ₂Ｏ：６４０g/l 電着条件：浴温：６０℃ 電流密度：１０〜２５０Ａ/dm² ｐＨ：２実施例２により得られた紡機用リングは、実施例１のリ
ングよりも耐摩耗性をより向上することができた。Plating solution composition: Cr O ₃ : 200 g / l (NH ₄ ) ₂ SO ₄ : 75 g / l H ₂ C ₂ O ₄ .2H ₂ O: 640 g / l Electrodeposition condition: Bath temperature: 60 ° C. Current density : 10 to 250 A / dm ² pH: 2 The spinning ring obtained in Example 2 was able to further improve wear resistance as compared with the ring of Example 1.

【００２０】（実施例３）下記のめっき条件で、実施例
１と同様のめっき層を形成した本発明の紡機用リングは
実施例１と同等の性能を有することがわかった。(Example 3) It was found that the spinning ring of the present invention having the same plating layer as that of Example 1 had the same performance as that of Example 1 under the following plating conditions.

【００２１】めっき液組成：Ｃr Ｏ₃：２００g/l （ＮＨ₄)₂ＳＯ₄：5.３g/l （ＮＨ₄)₂ＨＣ₆Ｈ₅Ｏ₇：３００g/l 電着条件：浴温：６０℃ 電流密度：１００〜２５０Ａ/dm² ｐＨ：８Plating solution composition: Cr O ₃ : 200 g / l (NH ₄ ) ₂ SO ₄ : 5.3 g / l (NH ₄ ) ₂ HC ₆ H ₅ O ₇ : 300 g / l Electrodeposition condition: Bath temperature: 60 C current density: 100-250 A / dm ² pH: 8

【００２２】[0022]

【発明の効果】本発明の紡機用リングは、上記構成より
形成されているため、トラベラが早期に焼付き、飛散す
ることもなく、長期にわたり安定した紡調を維持するこ
とができる。EFFECTS OF THE INVENTION Since the spinning ring of the present invention is formed as described above, the traveler is not seized or scattered at an early stage, and stable spinning can be maintained for a long period of time.

【００２３】また、非晶質構造のクロムめっき層は母材
との密着性がよいため、高速紡出や太番手糸紡出等の苛
酷な紡出条件でもめっき層の剥離もなく、耐摩耗性が著
しく向上する。更に、本発明の紡機用リングは耐食性に
優れているため、アクリル系合成繊維の紡出に際しても
発錆することがない等の優れた効果を有する発明であ
る。Since the chromium plating layer having an amorphous structure has good adhesion to the base material, the plating layer is not peeled off even under severe spinning conditions such as high speed spinning and thick yarn spinning, and the wear resistance is high. Significantly improved. Further, since the spinning ring of the present invention is excellent in corrosion resistance, it is an invention having excellent effects such as no rusting even when an acrylic synthetic fiber is spun.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の紡機用リングの断面図である。1 is a cross-sectional view of a spinning ring of the present invention.

【図２】本発明の紡機用リングの要部拡大断面図であ
る。FIG. 2 is an enlarged cross-sectional view of a main part of the spinning ring of the present invention.

【図３】本発明と従来品との比較を示す断面硬度分布図
である。FIG. 3 is a sectional hardness distribution diagram showing a comparison between the present invention and a conventional product.

【図４】運転時間と摩耗量の関係曲線図である。FIG. 4 is a relationship curve diagram between operating time and wear amount.

【図５】運転時間と糸切れ数の関係曲線図である。FIG. 5 is a relationship curve diagram between operating time and the number of yarn breakages.

【符号の説明】[Explanation of symbols]

１リング２非晶質構造のクロムめっき層３リングフランジ 1 ring 2 chrome plating layer with amorphous structure 3 ring flange

Claims

【特許請求の範囲】[Claims]

【請求項１】紡機用リングの少なくともトラベラと接
触するフランジ表面に、炭素を１〜５％含有する非晶質
構造のクロムめっき層を形成し、熱処理によりめっき層
の硬度をHv１２００〜１８００としたことを特徴とする
紡機用リング。1. A chrome plating layer having an amorphous structure containing 1 to 5% of carbon is formed on at least a flange surface of a spinning ring in contact with a traveler, and the hardness of the plating layer is set to Hv 1200 to 1800 by heat treatment. A ring for a spinning machine characterized by that.

【請求項２】上記めっき層のトラベラとの接触表面の
粗さが中心線平均粗さ(Ra)で0.２μm 以下である請求項
１記載の紡機用リング。2. The ring for a spinning machine according to claim 1, wherein the roughness of the contact surface of the plating layer with the traveler is 0.2 μm or less in terms of center line average roughness (Ra).

【請求項３】上記めっき層の厚さが１〜３０μm であ
る請求項１記載の紡機用リング。3. The spinning machine ring according to claim 1, wherein the plating layer has a thickness of 1 to 30 μm.