JPH0530901B2 - - Google Patents
Info
- Publication number
- JPH0530901B2 JPH0530901B2 JP61170541A JP17054186A JPH0530901B2 JP H0530901 B2 JPH0530901 B2 JP H0530901B2 JP 61170541 A JP61170541 A JP 61170541A JP 17054186 A JP17054186 A JP 17054186A JP H0530901 B2 JPH0530901 B2 JP H0530901B2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- wear
- weight
- spinning
- present
- 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
- 238000009987 spinning Methods 0.000 claims description 16
- 229910000734 martensite Inorganic materials 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000005256 carbonitriding Methods 0.000 claims description 6
- 150000001247 metal acetylides Chemical class 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 5
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910003470 tongbaite Inorganic materials 0.000 claims description 5
- FVESRZSALBPPGF-UHFFFAOYSA-N [C].[Mo].[Cr] Chemical compound [C].[Mo].[Cr] FVESRZSALBPPGF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000002344 surface layer Substances 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 1
- 239000011733 molybdenum Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 229910000760 Hardened steel Inorganic materials 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 238000005255 carburizing Methods 0.000 description 5
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 description 4
- 229910039444 MoC Inorganic materials 0.000 description 4
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical compound [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000004439 roughness measurement Methods 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
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は紡績用リングの製造方法、特に太番手
の糸等の紡出に好適な紡績用リングの製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing a spinning ring, particularly a method for manufacturing a spinning ring suitable for spinning thick yarn.
（従来の技術）
従来、紡績用リングは耐摩耗性を向上させるた
め種々の手段が採られている。一般的には肌焼鋼
を用い、切削形成した後、浸炭処理を行ない、焼
入焼戻しにより所定の硬度を付与する方法が採ら
れている。(Prior Art) Conventionally, various measures have been taken to improve the wear resistance of spinning rings. Generally, a method is adopted in which case-hardened steel is used, and after cutting and forming, a carburizing treatment is performed, and a predetermined hardness is imparted by quenching and tempering.
その他、素材として高炭素クローム鋼等を用
い、切削形成後、焼入焼戻しする方法も提案され
ている。 In addition, a method has also been proposed in which high carbon chromium steel or the like is used as the material and the material is quenched and tempered after cutting.
（発明が解決しようとする問題点）
しかし、いずれの方法においても充分な耐摩耗
性が得られず、更に耐久性を有するリングが望ま
れている。特に中番手、太番手の紡出では、トラ
ベルに加わる遠心力も大となり、このためリング
のトラベル走行面には高硬度層の剥離、波状摩
耗、あるいはうねり摩耗（ただし、波状摩耗とは
ピツチの小さい凹凸状に摩耗したもの、うねり摩
耗とはピツチの大きいものをいう）等を生じる。(Problems to be Solved by the Invention) However, sufficient wear resistance cannot be obtained by any of the methods, and a ring having further durability is desired. In particular, when spinning medium and thick counts, the centrifugal force applied to the travel becomes large, and this causes peeling of the high hardness layer, wavy wear, or waviness wear (however, wavy wear refers to small-pitch This results in uneven wear (undulating wear refers to wear with large pitches), etc.
このため、糸切れの発生、紡出張力の変動、糸
の毛羽発生等を誘起し、長期安定した紡出ができ
ない等の問題がある。 This causes problems such as yarn breakage, fluctuations in spinning force, and yarn fluff, making it impossible to perform stable spinning over a long period of time.
（問題点を解決するための手段）
本発明者は、実験の結果、金属組織を微細化す
ることにより、耐久性を増すことを発見し、本発
明に到達するものである。(Means for Solving the Problems) As a result of experiments, the present inventor discovered that durability can be increased by making the metal structure finer, and has arrived at the present invention.
即ち、本発明の紡績用リングは、Ｃ：0.13〜
0.18重量％、Cr：0.9〜1.2重量％、Mo：0.15〜
0.30重量％を含む低炭素クロムモリブデン鋼
SCM415を用いて切削加工により所要形状のリン
グ素材を形成し、このリング素材にガス浸炭窒化
処理及び焼入処理を行つて、クロム炭化物、モリ
ブデン炭化物の金属炭化物が微細マルテンサイト
中に分散配置された組織を有する表面硬化層を形
成することを特徴とするものである。 That is, the spinning ring of the present invention has a C: 0.13 to
0.18wt%, Cr: 0.9~1.2wt%, Mo: 0.15~
Low carbon chromium molybdenum steel containing 0.30% by weight
A ring material of the desired shape was formed by cutting using SCM415, and this ring material was subjected to gas carbonitriding and quenching to disperse metal carbides such as chromium carbide and molybdenum carbide into fine martensite. It is characterized by forming a surface hardened layer having a structure.
上記構成において、Cr：0.9〜1.2重量％とした
のは、Crが0.9重量％を下回ると耐摩耗性が低下
し、1.2重量％を越えると被切削性が悪くなるこ
とを理由とし、Mo：0.15〜0.30重量％としたの
は、Moが0.15重量％より少ないと焼入性が悪く
なり、0.30重量％を越えると被切削性が悪くなる
ことを理由としている。 In the above structure, Cr: 0.9 to 1.2% by weight is set because if Cr is less than 0.9% by weight, wear resistance decreases, and if it exceeds 1.2% by weight, machinability deteriorates, and Mo: The reason why Mo is set at 0.15 to 0.30% by weight is that if Mo is less than 0.15% by weight, hardenability will be poor, and if it exceeds 0.30% by weight, machinability will be poor.
（作用）
実験結果によると、従来の肌焼鋼を用い浸炭焼
入れしたリング、及び高炭素クロム鋼を用い焼入
れしたリングに比し、本発明によつて得られる紡
績用リングは波状摩耗等が減少され、耐久性が増
大される。(Function) According to experimental results, the spinning ring obtained by the present invention has less wavy wear, etc., compared to rings made of conventional case hardened steel and hardened rings, and rings made of high carbon chromium steel and quenched. and durability is increased.
（実施例）
以下、本発明を図面に示す実施例に基づいて詳
細に説明する。第１図は、本発明の紡績用リング
の製造要領を示す実施例工程図である。(Example) Hereinafter, the present invention will be described in detail based on an example shown in the drawings. FIG. 1 is an embodiment process chart showing the procedure for manufacturing a spinning ring according to the present invention.
素材としてＣ：0.13〜0.18重量％、Cr：0.9〜
1.2重量％、Mo：0.15〜0.30重量％を含む鋼であ
る低炭素クロムモリブデン鋼SCM415を用いる。 As a material, C: 0.13~0.18% by weight, Cr: 0.9~
Low carbon chromium molybdenum steel SCM415, which is a steel containing 1.2% by weight and Mo: 0.15 to 0.30% by weight, is used.
まず、この素材に対し切削加工により所要リン
グの素材を形成し、次にガス浸炭窒化処理を行な
う。このガス浸炭窒化処理は、例えば、雰囲気ガ
スとしてRXガスを使用し、その雰囲気ガス内に
ブタンやプロパン等の浸炭ガスと窒化のためのア
ンモニアガスを同時に添加し、その中でリング素
材を840〜860℃で約３〜６時間加熱することによ
り浸炭と窒化とを行い母材に炭素と窒素とが侵入
処理される。その浸炭有効深さは約0.5〜1.0mm程
度が好ましい。 First, a required ring material is formed from this material by cutting, and then gas carbonitriding treatment is performed. This gas carbonitriding treatment uses, for example, RX gas as the atmospheric gas, and simultaneously adds a carburizing gas such as butane or propane and ammonia gas for nitriding to the atmospheric gas, and then the ring material is heated to 840~ Carburizing and nitriding are carried out by heating at 860° C. for about 3 to 6 hours, and carbon and nitrogen are infiltrated into the base material. The effective carburizing depth is preferably about 0.5 to 1.0 mm.
次いで焼入（約830℃）、焼戻し（約170℃）を
行なうことにより、有効硬化深さ（HV550以上）
が0.5mm〜1.0mm程得られる。ただし、焼入れの
際、ホツトクエンチングにより焼戻しを省略して
もよい。 Then, by quenching (approximately 830℃) and tempering (approximately 170℃), the effective hardening depth (HV550 or more) is achieved.
About 0.5mm to 1.0mm can be obtained. However, during hardening, tempering may be omitted by hot quenching.
しかる後、機械的表面仕上げ（ホーニングやバ
レル研磨）を行ない、所要の粗面（例えば3μ程
度）に仕上げる。 After that, mechanical surface finishing (honing or barrel polishing) is performed to obtain the required roughness (for example, about 3μ).
このようにして、第１図に示す外表面に表面硬
化層Ｓが形成された紡績用リングＡが得られる。
上記表面硬化層Ｓは、クロム炭化物、モリブデン
炭化物がマルテンサイト中に分散配置された構造
になり、とくに、これら炭化物はクロムモリブデ
ン鋼の特性上超微細な炭化物となり、また、マト
リツクスのマルテンサイトも浸炭窒化処理するこ
とにより微細マルテンサイトが形成される。 In this way, a spinning ring A shown in FIG. 1 having a hardened surface layer S formed on its outer surface is obtained.
The surface hardening layer S has a structure in which chromium carbide and molybdenum carbide are dispersed in martensite. In particular, these carbides become ultra-fine carbides due to the characteristics of chromium-molybdenum steel, and the martensite in the matrix is also carburized. Fine martensite is formed by the nitriding treatment.
ガス浸炭窒化処理はガス浸炭処理に比して処理
温度が低く熱処理歪みが少ないという利点があ
る。また、通常のガス浸炭で得られるFe−Ｃ系
のマルテンサイトはそれほど微細なものとならな
いが、ガス浸炭窒化処理によればFe−Ｃ−Ｎ系
の微細マルテンサイトが生成される。このため耐
摩耗性、耐食性が向上するという利点がある。 Gas carbonitriding treatment has the advantage of lower treatment temperature and less heat treatment distortion than gas carburization treatment. Moreover, Fe--C-based martensite obtained by ordinary gas carburizing is not so fine, but Fe--C--N-based fine martensite is produced by gas carbonitriding. Therefore, there is an advantage that wear resistance and corrosion resistance are improved.
上記の微細マルテンサイトは浸炭度合いに対応
して形成され、すなわち、浸炭度合いが高い表面
側においてはほとんどが微細マルテンサイトとな
り、浸炭度合いが低い内層側においては微細マル
テンサイトが少なくなつてマルテンサイトの割合
が多くなるもので、したがつて、表面硬化層Ｓは
微細マルテンサイト中にクロム炭化物、モリブデ
ン炭化物が分散配置された構造となる。 The above-mentioned fine martensite is formed in accordance with the degree of carburization, that is, on the surface side where the degree of carburization is high, most of it becomes fine martensite, and on the inner layer side where the degree of carburization is low, there is less fine martensite and martensite is formed. Therefore, the surface hardened layer S has a structure in which chromium carbide and molybdenum carbide are dispersed in fine martensite.
第２図以下は、本発明に係る上記リングＡと従
来リングとの比較を示す。ただしＢは肌焼鋼をガ
ス浸炭した後、焼入焼戻しを行なつた通常のリン
グ、Ｃは高炭素クロム軸受鋼（SUJ2）を用い切
削加工後、所定の焼入焼戻し処理を行なつたもの
である。 FIG. 2 and subsequent figures show a comparison between the ring A according to the present invention and a conventional ring. However, B is a normal ring made of case-hardened steel that has been gas carburized and then quenched and tempered, and C is a ring made of high carbon chromium bearing steel (SUJ2) that has been cut and then subjected to the specified quenching and tempering treatment. It is.
第２図はリングの耐久試験要領、第３図は第２
図におけるＸ−Ｘ線に沿う矢視図である。本耐久
試験は、試験結果を早急に見出すため苛酷試験を
行なうようにしたもので、スピンドルブレード１
の上下にカラー２，３を取付け、測定リングには
４個のトラベラＴ１〜Ｔ４を嵌合し、上下カラー
２，３間に４本の紡出糸条Ｓ１〜Ｓ４を緩く取付
ける。この糸条Ｓ１〜Ｓ４に上記トラベルラ１〜
Ｔ４を係合し、スピンドルブレード１の回転によ
りバルーニングを形成し、リングの摩耗情況を測
定する。図中、４はスピンドルブレード１に取付
けワーブを示し、適宜の駆動ベルト（図示省略）
を係合する。 Figure 2 is the ring durability test procedure, Figure 3 is the second
It is an arrow view along the XX line in a figure. This durability test was a severe test to quickly find out the test results, and the spindle blade 1
Four travelers T1 to T4 are fitted to the measuring ring, and four spun yarns S1 to S4 are loosely attached between the upper and lower collars 2 and 3. These yarns S1 to S4 have the above travellers 1 to 1.
T4 is engaged, a ballooning is formed by the rotation of the spindle blade 1, and the state of wear of the ring is measured. In the figure, 4 indicates a warp attached to the spindle blade 1, and an appropriate drive belt (not shown) is attached to the spindle blade 1.
engage.
試験要領は下記による。 The test procedure is as follows.
スピンドル回転数 14000rpm
紡出糸条 綿10番手
トラベラ OS2/0
リング形状（呼び寸法） 3.2×46×57.5
試験時間70時間（ただし上述のごとく苛酷試験
であり、比較試験によると、70時間試験は通常使
用の11000時間以上に相当する。Spindle rotation speed 14000 rpm Spun yarn 10 count cotton Traveler OS2/0 Ring shape (nominal dimensions) 3.2 x 46 x 57.5 Test time 70 hours (However, as mentioned above, this is a severe test, and according to comparative tests, 70 hour tests are normal) Equivalent to over 11,000 hours of use.
次に、第４図は70時間耐久試験の結果を示す。
本発明リングＡも若干のうねり摩耗a2を発生した
が、その最大摩耗値a3は6μであつた。これに対し
肌焼鋼製リングＢは、うねり摩耗を生じ、その最
大値b2は10μに達した。更にこのリングＢには波
状摩耗b3も発生した。また軸受鋼製リングＣはう
ねり摩耗を大きく、その最大値c2は14μに達し、
かつ多数の波状摩耗c3も発生した。 Next, Figure 4 shows the results of a 70 hour durability test.
Ring A of the present invention also caused some waviness wear a2 , but its maximum wear value a3 was 6μ. On the other hand, ring B made of case-hardened steel suffered waviness wear, and its maximum value b 2 reached 10μ. Furthermore, wavy wear b3 also occurred on this ring B. In addition, the bearing steel ring C has a large waviness wear, and its maximum value c2 reaches 14μ.
And a large number of wave-like wear c3 also occurred.
この状態から観察するに、70時間経過後におい
ては、軸受鋼製リングＣは勿論、肌焼鋼製リング
Ｂもトラベラの走行抵抗が大となり、糸切れ数が
多く、リングの変換を要する状態である。 Observing this state, after 70 hours, not only the bearing steel ring C but also the case hardened steel ring B had a large traveling resistance of the traveler, many threads were broken, and the ring needed to be replaced. be.
また、第５図は上記リングＡ，Ｂ，Ｃの長期使
用試験結果における糸切れ数を表すグラフ図であ
り、この長期使用試験の試験要領は下記の通りで
ある。 Further, FIG. 5 is a graph showing the number of thread breaks in the long-term use test results of the rings A, B, and C, and the test procedure for this long-term use test is as follows.
スピンドル回転数 14500rpm
紡出糸 レーヨン100％30
トラベラ OY
リング形状（呼び寸法） 3.2×47×57.5
試験結果によれば、本発明品のリングＡでは、
糸切れ数が「10」となるのに24箇月かかるのに対
し、リングＢでは18箇月、リングＣでは15箇月か
かるもので、本発明品のリングＡでは糸切れ数が
顕著に減少し、すなわち、本発明のリングＡは耐
久性に優れ、従来の肌焼鋼や高炭素クロム鋼製リ
ングに比して糸切れ数が増加するまでの期間が長
いものである。Spindle rotation speed 14500 rpm Spun yarn 100% rayon 30 Traveler OY Ring shape (nominal dimensions) 3.2 x 47 x 57.5 According to the test results, ring A of the present invention has the following characteristics:
It takes 24 months for the number of thread breakages to reach "10", whereas it takes 18 months for ring B and 15 months for ring C, and the number of thread breaks for ring A of the present invention is significantly reduced, i.e. The ring A of the present invention has excellent durability, and the period until the number of thread breakage increases is longer than that of conventional rings made of case hardened steel or high carbon chromium steel.
上記従来の肌焼鋼製リング等のうねり摩耗、波
状摩耗発生の原因は種々考えられるが、その１つ
として表面硬化層を形成するマルテンサイト及び
各種含有金属炭化物の結晶粒子の大きさが影響す
るものと考えられる。本発明によつて得られる紡
績用リングは各結晶が微細化しており、摺動摩耗
に強いものと考えられる。 There are various possible causes for the occurrence of waviness and wavy wear in the conventional case-hardened steel rings, etc., but one of them is the size of the crystal grains of martensite and various metal carbides that form the surface hardening layer. considered to be a thing. The spinning ring obtained according to the present invention has finer crystals and is considered to be resistant to sliding wear.
（効果）
以上のように、本発明によれば、表面硬化層が
クロム炭化物、モリブデン炭化物の金属炭化物を
微細マルテンサイト中に分散配置された構造の紡
績用リングを得ることができ、これにより、紡績
用リングにおいて、表面硬さに斑がなく、波状摩
耗及びうねり摩耗の発生が減少され、耐久性が増
大されるようになつた。(Effects) As described above, according to the present invention, it is possible to obtain a spinning ring in which the surface hardening layer has a structure in which metal carbides such as chromium carbide and molybdenum carbide are dispersed in fine martensite, and thereby, In the spinning ring, the surface hardness is uniform, the occurrence of wavy wear and waviness wear is reduced, and the durability is increased.
第１図は、本発明リングの製造要領を示す実施
例工程図、第２図はリングの耐久試験要領の説明
図、第３図は第２図におけるＸ−Ｘ線に沿う矢視
図、第４図は70時間耐久試験後のトラベラ摺動面
の粗さ測定グラフ、第５図は長期間使用試験によ
る糸切れ数を表すグラフである。
Ａは本発明によつて得られる紡績用リングであ
る。
Fig. 1 is an example process diagram showing the procedure for manufacturing the ring of the present invention, Fig. 2 is an explanatory diagram of the procedure for the durability test of the ring, Fig. 3 is a view taken along the line X-X in Fig. 2, and Fig. Figure 4 is a graph showing the roughness measurement of the traveler's sliding surface after a 70-hour durability test, and Figure 5 is a graph showing the number of thread breakages during a long-term use test. A is a spinning ring obtained by the present invention.
Claims (1)
Mo：0.15〜0.30重量％を含む低炭素クロムモリ
ブデン鋼SCM415を用いて切削加工により所要形
状のリング素材を形成し、このリング素材にガス
浸炭窒化処理及び焼入処理を行つて、クロム炭化
物、モリブデン炭化物の金属炭化物が微細マルテ
ンサイト中に分散配置された組織を有する表面硬
化層を形成することを特徴とする紡績用リングの
製造方法。1 C: 0.13-0.18% by weight, Cr: 0.9-1.2% by weight,
A ring material of the desired shape is formed by cutting using low carbon chromium molybdenum steel SCM415 containing Mo: 0.15 to 0.30% by weight, and this ring material is subjected to gas carbonitriding treatment and quenching treatment to remove chromium carbide, molybdenum 1. A method for producing a spinning ring, which comprises forming a hardened surface layer having a structure in which metal carbides are dispersed in fine martensite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17054186A JPS6328921A (en) | 1986-07-18 | 1986-07-18 | Ring for spinning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17054186A JPS6328921A (en) | 1986-07-18 | 1986-07-18 | Ring for spinning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6328921A JPS6328921A (en) | 1988-02-06 |
| JPH0530901B2 true JPH0530901B2 (en) | 1993-05-11 |
Family
ID=15906811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17054186A Granted JPS6328921A (en) | 1986-07-18 | 1986-07-18 | Ring for spinning |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6328921A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6456419B1 (en) * | 2000-09-29 | 2002-09-24 | Innovative Technology Licensing, Llc | Frequency modulated liquid crystal beamsteering device |
| US11341496B2 (en) | 2020-06-03 | 2022-05-24 | Fiserv, Inc. | Hardware device for entering a PIN via tapping on a touch screen display |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516142A (en) * | 1974-07-05 | 1976-01-19 | Toyota Motor Co Ltd | Taimamokono seizoho |
| JPS54133418A (en) * | 1978-04-07 | 1979-10-17 | Nippon Steel Corp | Case hardening steel without producing abnormal carburized structure |
| JPS59159928A (en) * | 1983-03-03 | 1984-09-10 | Sumitomo Metal Ind Ltd | Carburization hardening treatment of case hardened steel |
| JPS60169544A (en) * | 1984-02-14 | 1985-09-03 | Daido Steel Co Ltd | Machine structural parts of high strength and manufacture thereof |
-
1986
- 1986-07-18 JP JP17054186A patent/JPS6328921A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516142A (en) * | 1974-07-05 | 1976-01-19 | Toyota Motor Co Ltd | Taimamokono seizoho |
| JPS54133418A (en) * | 1978-04-07 | 1979-10-17 | Nippon Steel Corp | Case hardening steel without producing abnormal carburized structure |
| JPS59159928A (en) * | 1983-03-03 | 1984-09-10 | Sumitomo Metal Ind Ltd | Carburization hardening treatment of case hardened steel |
| JPS60169544A (en) * | 1984-02-14 | 1985-09-03 | Daido Steel Co Ltd | Machine structural parts of high strength and manufacture thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328921A (en) | 1988-02-06 |
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