JPS63303132A - Ring for spinning machine - Google Patents
Ring for spinning machineInfo
- Publication number
- JPS63303132A JPS63303132A JP13953187A JP13953187A JPS63303132A JP S63303132 A JPS63303132 A JP S63303132A JP 13953187 A JP13953187 A JP 13953187A JP 13953187 A JP13953187 A JP 13953187A JP S63303132 A JPS63303132 A JP S63303132A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- nitrogen
- surface layer
- spinning machine
- layer
- 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.)
- Granted
Links
- 238000009987 spinning Methods 0.000 title claims abstract description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 26
- 239000002344 surface layer Substances 0.000 claims abstract description 18
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 238000010791 quenching Methods 0.000 claims abstract description 4
- 230000000171 quenching effect Effects 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 150000001247 metal acetylides Chemical class 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims description 2
- 238000000137 annealing Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
- 229910001566 austenite Inorganic materials 0.000 description 7
- 230000000717 retained effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241001358806 Trapella Species 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H7/00—Spinning or twisting arrangements
- D01H7/02—Spinning or twisting arrangements for imparting permanent twist
- D01H7/52—Ring-and-traveller arrangements
- D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
- D01H7/602—Rings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野）
本発明は、高速精紡における寿命の長い紡機用リングに
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a ring for a spinning machine with a long life in high-speed spinning.
従来の紡機用リングは表面の硬化処理として一般に低炭
素鋼に浸炭を行ない表面炭素含有量を０．８％ 程度に
して焼き入れられたものが使用されている。しかし、今
日の紡績工場での過酷な操業条件の下では、トラベラに
対する耐摩耗性が不足し寿命の点で不充分であった。ま
た一部室化処理により表面硬度を上げたものも使用され
ているが、硬化層の靭性が低く、やはり寿命の点で不充
分な点があった。Conventional rings for spinning machines are generally made of low carbon steel that has been carburized to a surface hardening treatment to a surface carbon content of about 0.8%. However, under the harsh operating conditions of today's spinning mills, the wear resistance against the traveler was insufficient and the service life was insufficient. In addition, although some materials have been used in which the surface hardness has been increased through a partial chambering process, the toughness of the hardened layer is low and the service life is still insufficient.
本発明は上記欠点を解消するものであり、Ｃを０．６〜
１．１％、Ｃｒを０．９〜１．６％含有する鋼よりなる
リングに、浸窒、焼入れ、焼戻し処理を行い、表層に窒
素をより多く含有する層を設けると共に、母材は球状化
した炭化物が分散したマルテンサイト組織よりなること
を特徴とする。また、上記表層は深さ０．１ｍｍ以内で
窒素含有量０．１５〜１．０％ である。The present invention solves the above-mentioned drawbacks, and reduces C from 0.6 to
A ring made of steel containing 1.1% and 0.9 to 1.6% Cr is subjected to nitriding, quenching, and tempering to provide a layer containing more nitrogen on the surface, and the base material is spherical. It is characterized by a martensitic structure in which hardened carbides are dispersed. Further, the surface layer has a nitrogen content of 0.15 to 1.0% within a depth of 0.1 mm.
ところで、表層と固溶する窒素は０．１５％〜１．０％
が望ましく 、０．１５％未満であると窒素の効果が発
揮されず、１．０％ を越えるともろい窒素化合物を作
り易くなり＃を摩性が悪化する。また素材に含まれるＣ
量は０．６〜１．１％、Ｃｒ量は０．９〜１．６％の範
■にあることが望ましく下限未満であると耐摩性向上に
有効となる炭化物が少なくなり、上限を越えると加工性
が悪くなる。By the way, the amount of nitrogen dissolved in the surface layer is 0.15% to 1.0%.
If it is less than 0.15%, the effect of nitrogen will not be exhibited, and if it exceeds 1.0%, brittle nitrogen compounds are likely to be formed, resulting in poor friability. Also, C contained in the material
The amount of Cr is preferably in the range of 0.6 to 1.1%, and the amount of Cr is in the range of 0.9 to 1.6%.If it is less than the lower limit, there will be less carbide, which is effective in improving wear resistance, and if it exceeds the upper limit. This results in poor workability.
表層に固溶した窒素はＭｓ点を下げ、焼入れ時に芯部よ
りも後にマルテンサイト化させ、表層に圧縮残留応力を
残すと共に残留オーステナイトも生成し、疲労強度を向
上させる。また窒素は焼戻し軟化抵抗を高め、過酷な運
転条件での熱による軟化に対して効果がある池、耐焼き
付き性も改善し、リングとトラペラのなじみが良くなり
、糸切れ減少の効果もある。またマルテンサイト中に分
散した炭化物はトラペラ走行時、リングの表面で有効に
働いて減摩特性を発揮する。Nitrogen solidly dissolved in the surface layer lowers the Ms point, turns into martensite later than the core during quenching, leaves compressive residual stress in the surface layer, and also generates retained austenite, improving fatigue strength. Nitrogen also increases resistance to tempering and softening, which is effective against softening caused by heat under harsh operating conditions, improves seizure resistance, improves the fit between the ring and trapeller, and reduces thread breakage. In addition, the carbides dispersed in martensite work effectively on the surface of the ring when running the trapper, exhibiting anti-friction properties.
以下、本発明の詳細な説明するが、本発明はこの実施例
に限定されるものではない。The present invention will be described in detail below, but the present invention is not limited to this example.
Ｃを１．０％、Ｃｒを１．３％含んだ軸受鋼を球状化焼
鈍した後、所定のリング形状に旋削し、所要の熱処理条
件にて、窒素拡散雰囲気中にて焼入れ、焼戻して、第１
図に示すように、母材は炭化物１を分散したマルテンサ
イト組織２で形成され、表層３は上記マルテンサイト組
織に窒素が固溶し、残留オーステナイト４を多く含んだ
層を形成して本発明の紡機用リングを構成する。Bearing steel containing 1.0% C and 1.3% Cr is spheroidized and annealed, then turned into a predetermined ring shape, quenched and tempered in a nitrogen diffusion atmosphere under the required heat treatment conditions, 1st
As shown in the figure, the base material is formed of a martensitic structure 2 in which carbides 1 are dispersed, and the surface layer 3 is formed by solid solution of nitrogen in the martensitic structure to form a layer containing a large amount of retained austenite 4. It constitutes a ring for a spinning machine.
ところで、上記熱処理は第３図に示す条件にて行う、即
ち、窒素拡散雰囲気中での焼入れは、焼入れ均熱保持（
８５０″Ｃ× ２５分）中にＲＸガス雰囲気とし、ＮＨ
，ガスを５％添加して表層に窒素を拡散させた後、焼戻
しく１８０℃ ×６０分）を行ったものである。By the way, the above heat treatment is performed under the conditions shown in FIG.
850″C x 25 minutes) with RX gas atmosphere and NH
, 5% gas was added to diffuse nitrogen into the surface layer, and then tempering was performed at 180° C. for 60 minutes).
このとき、上記表層の窒素含有量は、第２図の窒素濃度
曲線図に示すように表面より０．１關以内で０．２〜０
．４％となっており、それより内部では窒素の含有量が
減少している。At this time, the nitrogen content in the surface layer is 0.2 to 0 within 0.1 degrees from the surface, as shown in the nitrogen concentration curve diagram in Figure 2.
．． 4%, and the nitrogen content inside is decreasing.
なお、上記表層の窒素含有量は熱処理条件を変えること
により、０．１５％〜１．０％ になすことができる。The nitrogen content of the surface layer can be adjusted to 0.15% to 1.0% by changing the heat treatment conditions.
次に、第４．５図は本発明の紡機用リングＡと従来の窒
素を添加していない紡機用リングＢとの比較を示し、第
４図はリング表面からの残留応力変化曲線図であり、本
発明の紡機用リングＡの表層は、従来の窒素を添加して
いない紡機用リングＢとくらべると圧縮応力となってい
ることがわかる。Next, Fig. 4.5 shows a comparison between ring A for spinning machines according to the present invention and ring B for spinning machines in the past to which no nitrogen is added, and Fig. 4 is a residual stress change curve diagram from the ring surface. It can be seen that the surface layer of the ring A for a spinning machine according to the present invention has compressive stress compared to the conventional ring B for a spinning machine to which no nitrogen is added.
また、第５図は残留オーステナイト量を示す曲線図であ
り、本発明の紡機用リングＡは、従来の紡機用リングＢ
に比べ、窒素拡散層を含む表層の残留オーステナイト量
が多くなっていることがわかる。Further, FIG. 5 is a curve diagram showing the amount of retained austenite, and the spinning machine ring A of the present invention is different from the conventional spinning machine ring B.
It can be seen that the amount of retained austenite in the surface layer, including the nitrogen diffusion layer, is larger than that in the previous example.
次に、本発明の紡機用リングＡと従来の紡機用リングＢ
とを用いて、下記条件にて摩耗テスト及び糸切れテスト
を行なった。Next, the spinning machine ring A of the present invention and the conventional spinning machine ring B
A wear test and a thread breakage test were conducted under the following conditions.
テスト条件
リング寸法：３．２Ｆｘ φ４７× φ５７．５ス
ピンドル回転数： １４５００ｒ、ｐ、閣紡出糸 ：
レーヨン３０′Ｓ
トラペラ ：ＭＳ／ｈｆ Ｎｏ、２
第６図は運転時間とリングの摩耗量の関係を示す曲線図
であり、従来の紡機用リングＢに比較し、本発明の紡機
用リングＡは摩耗が少なく、寿命が長いことがわかる。Test conditions Ring dimensions: 3.2Fx φ47× φ57.5 Spindle rotation speed: 14500r, p, Kaku spun yarn:
Rayon 30'S Trapeller: MS/hf No. 2 Figure 6 is a curve diagram showing the relationship between operating time and ring wear amount.Compared with conventional spinning machine ring B, spinning machine ring A of the present invention It can be seen that there is little wear and that the life is long.
第７図は運転時間と糸切れ数の関係を示す曲線図であり
、本発明の紡機用リングＡは従来の紡機用リングＢに比
較し、初期より糸切れが少なく、紡調の点でも優れた効
果を有する。FIG. 7 is a curve diagram showing the relationship between the operating time and the number of yarn breakages, and the ring A for spinning machines of the present invention has fewer yarn breakages than the conventional ring B for spinning machines, and is also superior in terms of spinning. have an effect.
本発明は上記構成よりなり、表層に窒素が固溶し、かつ
球状化した炭化物が分散したマルテンサイト層が形成さ
れているため、表層に圧縮応力が生じ、また残留オース
テナイトが生成し、耐疲労性を向上し、熱軟化抵抗も向
上する。The present invention has the above structure, and a martensite layer in which nitrogen is dissolved as a solid solution and spheroidized carbides are dispersed is formed in the surface layer, so compressive stress is generated in the surface layer, residual austenite is generated, and fatigue resistance is increased. This improves the properties and heat softening resistance.
さらに、上記炭化物は耐摩耗性も向上し、上記の複合作
用により、リングの耐摩耗性が向上し、寿命を延長させ
る効果が発揮されると共に、トラペラの焼き付きが少な
く、紡調が優れる等の優れた効果を有する発明である。Furthermore, the above-mentioned carbide also improves wear resistance, and due to the above-mentioned combined effect, the wear resistance of the ring is improved and the life of the ring is extended. At the same time, there is less seizure of the trapella, and excellent spinning is achieved. This invention has excellent effects.
第１図は本発明の紡機用リングの一実施例を示す表面拡
大断面図、第２図は同窒素濃度曲線図、第３図は同熱処
理条件図、第４図〜第７図は本発明の紡機用リングと従
来の紡機用リングの比較を示し、第４図は残留応力変化
図、第５図は残留オーステナイト量変化図、第６図は運
転時間−摩耗量曲線図、第７図は運転時間−系切れ曲線
図である。
１・・・・・・炭化物
２・・・・・・マルテンサイト組織
３・・・・・・表層
４・・・・・・残留オーステナイト
第１図 第２図
第３図
第４図FIG. 1 is an enlarged cross-sectional view of the surface of an embodiment of a ring for a spinning machine according to the present invention, FIG. 2 is a nitrogen concentration curve diagram, FIG. 3 is a heat treatment condition diagram, and FIGS. Figure 4 shows a residual stress change diagram, Figure 5 shows a retained austenite content change diagram, Figure 6 shows an operating time-wear curve diagram, and Figure 7 shows a comparison between a spinning machine ring and a conventional spinning machine ring. It is an operating time-system breakage curve diagram. 1... Carbide 2... Martensitic structure 3... Surface layer 4... Retained austenite Figure 1 Figure 2 Figure 3 Figure 4
Claims (2)
含有する鋼よりなるリングに、浸窒、焼入れ、焼戻し処
理を行い、表層に窒素をより多く含有する層を設けると
共に、母材は球状化した炭化物が分散したマルテンサイ
ト組織よりなることを特徴とする紡機用リング。(1) 0.6-1.1% C, 0.9-1.6% Cr
The ring is made of steel that contains nitrogen, is subjected to nitriding, quenching, and tempering to form a layer containing more nitrogen on the surface layer, and the base material is made of a martensitic structure in which spheroidal carbides are dispersed. A ring for spinning machines.
１５〜１．０％であることを特徴とする特許請求の範囲
第１項記載の紡機用リング。(2) The surface layer has a nitrogen content of 0.1 mm within a depth of 0.1 mm.
The ring for a spinning machine according to claim 1, characterized in that the content is 15 to 1.0%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62139531A JPH0781215B2 (en) | 1987-06-02 | 1987-06-02 | Ring for spinning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62139531A JPH0781215B2 (en) | 1987-06-02 | 1987-06-02 | Ring for spinning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63303132A true JPS63303132A (en) | 1988-12-09 |
| JPH0781215B2 JPH0781215B2 (en) | 1995-08-30 |
Family
ID=15247448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62139531A Expired - Lifetime JPH0781215B2 (en) | 1987-06-02 | 1987-06-02 | Ring for spinning machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0781215B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299122A (en) * | 2008-06-12 | 2009-12-24 | Toyota Motor Corp | Nitriding-quenching method, heater for nitriding-quenching and nitriding-quenching apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540843A (en) * | 1978-09-14 | 1980-03-22 | Nippon Spindle Mfg Co Ltd | Spinning ring |
| JPS57167423A (en) * | 1981-04-02 | 1982-10-15 | Kanai Hiroyuki | Ring for spinning |
| JPS5943128A (en) * | 1982-09-01 | 1984-03-10 | Kanai Hiroyuki | Traveller for spinning machine |
| JPS59125916A (en) * | 1982-12-28 | 1984-07-20 | Kanai Hiroyuki | Ring for spinning machinery |
-
1987
- 1987-06-02 JP JP62139531A patent/JPH0781215B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540843A (en) * | 1978-09-14 | 1980-03-22 | Nippon Spindle Mfg Co Ltd | Spinning ring |
| JPS57167423A (en) * | 1981-04-02 | 1982-10-15 | Kanai Hiroyuki | Ring for spinning |
| JPS5943128A (en) * | 1982-09-01 | 1984-03-10 | Kanai Hiroyuki | Traveller for spinning machine |
| JPS59125916A (en) * | 1982-12-28 | 1984-07-20 | Kanai Hiroyuki | Ring for spinning machinery |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009299122A (en) * | 2008-06-12 | 2009-12-24 | Toyota Motor Corp | Nitriding-quenching method, heater for nitriding-quenching and nitriding-quenching apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0781215B2 (en) | 1995-08-30 |
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