TW454042B - Steel for bearing excellent in rolling fatigue life - Google Patents
Steel for bearing excellent in rolling fatigue life Download PDFInfo
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- TW454042B TW454042B TW088119071A TW88119071A TW454042B TW 454042 B TW454042 B TW 454042B TW 088119071 A TW088119071 A TW 088119071A TW 88119071 A TW88119071 A TW 88119071A TW 454042 B TW454042 B TW 454042B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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4,5 4 〇 ^ B7 五、發明說明（1 ) 技術領域 (請先閱讀背面之注意事項再填寫本頁) 本發明係有關用作滾子軸承或球軸承之所謂滾動軸承 之元件構件。尤指供提供耐轉動抗疲勞使用壽命長用構件 而用的軸承用鋼。 背景技術 滾動軸承等所用的軸承用鋼，係被要求需具抗疲勞使 用壽命長。一般，於軸承之耐轉動抗疲勞使用壽命長方面 ，鋼中所存在的硬質之氧化物系非金屬夾雜物有.惡劣影響 一方面係廣爲人知的。 因此，由於相關的非金屬夾雜物量之降低，爲圖謀耐 轉動抗疲勞使用壽命之提高，長久以來，係努力於主要降 低鋼中氧量而著手。隨著製鋼技術之進步，在以S i或 A 1爲脫氧材而添加的鋼，成爲可降低鋼中氧量至0 . 0 OlOma s s%以下爲止。其結果，鋼中存在的硬質之 氧化物系非金屬夾雜物之量可予大幅降低，可提高耐轉動 抗疲勞使用壽命。 ^ 經濟部智慧財產局員工消費合作社印製 然而，藉由如此低氧化的耐轉軌抗疲勞使用壽命之提 高，目前的實際情況係已達到界限。 然而在最近，有以耐轉動抗疲勞使用壽命之更進一步 提高爲目的之動向。例如在日本特開平3 — 1 2 6 8 3 9 號公報揭示有需調整單位面積或單位體積中的氧化物系非 金屬夾雜物個數，亦即調整此等分布之方法。又於日本特 開平5 - 2 5 5 8 7號公報，揭示有需調整利用極値統計 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -4- 經濟部智慧財產局員工消费合作社印製 45A 2 A7 · _；_B7__ 五、發明說明（2 ) 所推測的氧化物系非金屬夾雜物之預測最大徑，亦即調整 此等形態之方法。不論何者’均爲調整氧化物系非金屬夾 雜物量以外的分布或形態、減少氧化物系非金屬夾雜物之 影響的方法。 然而，依上述已知技術，爲使更降低每單位面積之氧 J(匕物系非金屬夾雜物之個數或最大直徑’再對製鋼設備改 善或製造程序之改善即有必要。因此，爲實現此等，有必 要作鉅額之投資，不能避免招致製造成本之上升。加上， 爲保證耐轉動抗疲勞使用壽命長，對非金屬夾雜.物之詳細 評估即成必要，故生產性之降低亦成爲不可避免的》 另一方面，由於雜質之降低，改良耐轉動抗疲勞使用 壽命之技術，正予揭示於日本特開平1 0 — 6 8 0 4 7、 特開平 10-158790、特開平 10 — 168547 等。又，控制除氧化物系以外的硬質之非金屬夾雜物的硫 化物系非金屬夾雜物之方法亦予揭示於日本特開$ 9 - 2 91340 (PCT/JP97/00549)公 報內。不論何者，.均係以使可成爲疲勞裂斷之起點韵物質 減少爲目的。然而，不論何者均爲以已添加S i或A 1爲 脫氧材之鋼爲對象，S i或A 1氧化物之形成爲不可避免 的，在耐轉動抗疲勞使用壽命方面有分散性，其提高亦有 界限。 因此本發明之主要目的，係僅以成分組成之調整可予 製造，在生產性方面係有利的，再者提供具有優越的耐轉 動抗疲勞使用壽命長之軸承用鋼》 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) ! -5- — — — — — — r V · I--— I — I -------- (請先閱讀背面之注意事項再填寫本頁) 45404^ A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（3 ) 發明之揭示 本發明係有鑑於上述目的爲其實現而完成者，若依最 近的製鋼技術時，即使不添加S i及A 1之脫氧材，含有 C至1 m a s s %程度之情形，成爲可降低0 (氧）至 0 . OOlOma s s%程度。又，藉由S i或A 1添加 引起的淬火性之改良或耐轉動抗疲勞使用壽命之提高，_瓦 以大量添加C r可予代替。因此，發明人等，係含有C : lmass%程度，不含有Si及A1 ，降低OM10 P pm程度，採用大量含有C r之原材料，檢討雜質元素 之影響。其結果，發現於鋼中混入S b雜質元素之存在會 對耐轉動抗疲勞使用壽命有惡劣影響。 以含有 C:〇.98 〜1.05mass%、C r ： 1 . 65 〜3. 45 m a s s%、Ο: 0 . 0008 〜 0 · 0012ma s s_%，Sb : 0 . 0001.〜 0 . 0 1 0 Om a s s%，殘量實質上由F e而成的試料 ，檢查耐轉動抗疲勞使用壽命。且，氧化物系非金屬夾雜 物個數爲1 0 0〜2 0 0個/3 2 Omrri，其最大直徑在 被檢査面積3 2 Omrri時爲8〜1.2 //m »第1圖係表示 鋼中S b量對耐轉動抗疲勞使用壽命之影響。若降低鋼中 Sb量至〇 . 〇〇 1 5ma s s%。以下時則耐轉動抗疲 勞使用壽命會提高。若成爲0 . OOlOma s s%程度 時，則此改善效果會飽和。此種現象之理由並不一定顯而 可知，惟鋼中S b量若超過一定限度時，則可被視作過量 K紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------,'/ν 裝·！訂 il-li--#\ (請先閱讀背面之注意事項再填窝本頁) -6 A7 54 Ο 4 d _____Β7__ 五、發明說明（4 ) 的S b會偏析於結晶粒界，有助於疲勞龜裂之進展，加速 破壞之發生所致。 <請先閲讀背面之注意事項再填寫本頁) 在上述見解之下所開發的本發明之主要內容構成係如 下所述。 以由含有 C : ◦ . 95 〜1 · l〇ma s s%、 Cr :超過1.60〜3.5〇mass%、0: Ο . 0015ma s s%以下及 Sb : 〇 . 0010 ma s s%以下，殘量爲F e及不可避免的雜質而成爲特 徵之耐轉動抗疲勞使用壽命長的軸承用鋼。又，.再者亦可 使含有由Si :2.5mass%、Mn:2.5 ma s s%以下、Mo : 2 . 5ma s s%以下、Ni : 3 . Oma s s%以下、Nb : 1 . 5ma s s%以下、 V : 1 . 5ma s.s%、Cu : 2 . Oma s s% 以下及 A1 : . 〇8ma s s%以下之中選擇的一種或二種以 上。 以下，表示本發明之成分之限定理由。 經濟部智慧財產局員工消費合作社印製 C:0.95 〜l.lOmass% C爲固熔於基底內，有效的作用於麻田散之強化的元 素。爲使淬火退火後之強度確保及由而的耐轉動抗疲勞使 用壽命提高而予含有。含有量未滿0 . 9 5ma s S%時 ，則未能得此等的效果。另一方面，C量若超過1 . 1〇 m a s s %時，則鑄造時會生成巨大碳化物，使加工性及 耐轉動抗疲勞使用壽命降低。因此，以0 . 95〜 本紙張尺度適用中國國家標準（CNS)A4規格（210 * 297公釐） 454042 經濟部智慧財產局員工消费合作社印製 A7 B7 五、發明說明（5 ) 1 . 1 〇ma s s%爲範圍。4,5 4 〇 ^ B7 V. Description of the Invention (1) Technical Field (Please read the precautions on the back before filling out this page) The present invention relates to the components of so-called rolling bearings used as roller bearings or ball bearings. In particular, it is used for bearing steels to provide components with long rotation and fatigue resistance. BACKGROUND ART Bearing steel used for rolling bearings and the like is required to have a long life against fatigue. In general, in terms of the bearing's long rotation and anti-fatigue service life, the hard oxide-based non-metallic inclusions present in steel have bad effects. On the one hand, they are widely known. Therefore, due to the reduction of the amount of related non-metallic inclusions, in order to improve the service life of rotation resistance and fatigue resistance, for a long time, efforts have been made to mainly reduce the amount of oxygen in steel. With the progress of steel-making technology, steel added with Si or A 1 as a deoxidizing material can reduce the amount of oxygen in the steel to less than or equal to 0 OlOma s s%. As a result, the amount of hard oxide-based non-metallic inclusions present in the steel can be greatly reduced, and the rotation and fatigue life can be improved. ^ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs However, with such an increase in the low oxidation-resistant, transition-resistant and fatigue-resistant service life, the current actual situation has reached the limit. However, recently, there has been a tendency to further improve the rotation and fatigue life. For example, Japanese Patent Application Laid-Open No. 3-1 2 6 8 3 9 discloses that it is necessary to adjust the number of oxide-based non-metallic inclusions per unit area or volume, that is, a method for adjusting such distribution. Also disclosed in Japanese Patent Application Laid-Open No. 5-2 5 5 8 7 that it is necessary to adjust and use the pole count statistics. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). -4- Bureau of Intellectual Property, Ministry of Economic Affairs 45A 2 A7 · _; _B7__ printed by employee consumer cooperatives V. Description of the invention (2) The predicted maximum diameter of the oxide-based non-metallic inclusions, that is, the method of adjusting these forms. Either way is a method of adjusting the distribution or morphology other than the amount of oxide-based nonmetallic inclusions, and reducing the influence of oxide-based nonmetallic inclusions. However, according to the above-mentioned known technology, in order to further reduce the oxygen per unit area (the number or maximum diameter of non-metallic inclusions of daggers), it is necessary to improve the steelmaking equipment or the manufacturing process. Therefore, for To achieve this, it is necessary to make a huge investment, which can not avoid incurring an increase in manufacturing costs. In addition, in order to ensure a long service life against rotation and fatigue, a detailed evaluation of non-metallic inclusions is necessary, so the productivity is reduced It has become inevitable. ”On the other hand, due to the reduction of impurities, the technology for improving the rotation and fatigue life is disclosed in Japanese Patent Application Laid-Open Nos. 10-0, 6-8 0 4 7, Japanese Patent Application No. 10-158790, Japanese Patent Application No. 10 — 168547, etc. In addition, a method for controlling sulfide-based non-metallic inclusions of hard non-metallic inclusions other than oxides is also disclosed in Japanese Laid-Open Patent Publication No. 9-2340 (PCT / JP97 / 00549) No matter what, the purpose is to reduce the rhyme that can be the starting point of fatigue fracture. However, no matter which is the target of the steel to which Si or A 1 has been added, Si or A 1 is oxidized. Things The formation is unavoidable, there is dispersion in terms of rotation resistance and fatigue life, and there is also a limit to its improvement. Therefore, the main object of the present invention is that it can be manufactured only by adjusting the component composition, which is advantageous in terms of productivity. Furthermore, we provide bearing steel with excellent resistance to rotation, fatigue and long service life. ”This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)! -5- — — — — — — r V · I --— I — I -------- (Please read the notes on the back before filling out this page) 45404 ^ A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (3) Invention According to the disclosure, the present invention has been accomplished in view of the above-mentioned objectives. If the latest steel-making technology is used, even if the deoxidizing material of Si and A 1 is not added, the content of C to 1 mass% can be reduced. (Oxygen) to about 0.001 Oma ss%. In addition, with the improvement of hardenability caused by the addition of S i or A 1 or the improvement of the rotation and fatigue life, _ watts can be replaced with a large amount of C r. Inventors, etc., contain C: lmass% Degree, does not contain Si and A1, reduces the degree of OM10 P pm, uses a large amount of raw materials containing C r to review the effect of impurity elements. As a result, it was found that the presence of S b impurity elements in the steel will have a resistance to rotation and fatigue. It has a bad influence. It contains C: 0.098 to 1.05 mass%, Cr: 1.65 to 3.45 mass%, 0: 0. 0008 to 0. 0012ma s s_%, Sb: 0. 0001. to 0 0 1 0 Om ass%, the sample with residual amount substantially made of Fe, check the rotation and fatigue life. In addition, the number of oxide-based non-metallic inclusions is 100 to 2 0/3/3 Omrri, and the maximum diameter is 8 to 1.2 when the area to be inspected is 3 2 Omrri // m. The effect of the amount of S b on the rotation and fatigue life. If the amount of Sb in the steel is reduced to 0.015 ma s s%. In the following cases, the rotation and fatigue life will be increased. If it is about 0.001 Oma s s%, the improvement effect will be saturated. The reason for this phenomenon is not necessarily obvious, but if the amount of Sb in steel exceeds a certain limit, it can be regarded as an excess of K paper. The size of the Chinese national standard (CNS) A4 (210 X 297 mm) is applicable- -------, '/ ν Outfit! Order il-li-# \ (Please read the precautions on the back before filling in this page) -6 A7 54 Ο 4 d _____ Β7__ V. Sb of the invention description (4) will segregate at the crystal grain boundary, which will help The progress of fatigue cracking is caused by accelerated damage. < Please read the notes on the back before filling this page) The main content of the invention developed based on the above findings is as follows. Contains C: ◦. 95 ~ 1 · 10ma ss%, Cr: more than 1.60 ~ 3.5〇mass%, 0: 〇. 0015ma ss% or less, and Sb: 0.0010 ma ss% or less, and the residual amount is F e and unavoidable impurities are characteristic of bearing steel with long rotation and fatigue life. In addition, it may contain Si: 2.5mass%, Mn: 2.5ma ss% or less, Mo: 2.5ma ss% or less, Ni: 3.0ma or less ss%, and Nb: 1.5ma ss% or less. , V: 1.5ma ss%, Cu: 2. Oma ss% or less, and A1:. 〇8ma ss% or less. The reasons for limiting the components of the present invention are described below. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs C: 0.95 ~ l.lOmass% C is a solid element solidified in the substrate and effectively acts as a strengthening element of Asada San. It is included in order to ensure the strength after quenching and annealing and to improve the rotation and fatigue life. When the content is less than 0.9 5ma s S%, these effects cannot be obtained. On the other hand, when the amount of C exceeds 1.1 m a s s%, huge carbides are formed during casting, which reduces workability and resistance to rotation and fatigue. Therefore, the national paper (CNS) A4 specification (210 * 297 mm) is applicable at 0.95 to this paper size. 454042 A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (5) 1.1. ma ss% is the range.
Cr :超過 1 . 60 〜3 . 5〇ma s s% C r爲使碳化物安定化，藉由使於淬火後殘留碳化物 ，爲可使耐磨耗性提高係有用的。又，使淬火性提高，同 時利用球狀化組織促進可使冷加工性提高。C r添加量在 1 . 6 0 m a s s %以下時則未能獲得此等效果。若添加 超過3 . 5 〇m as s%時，則由淬火而殘留的碳化物量 會增加。其結果，固熔於基底之C量會降低，強.度以至耐 轉動抗疲勞使用壽命會降低。由而，C r添加量爲超過 1 . 60〜3 . 5〇ma s s%，宜爲超過1，60〜 2.5〇mass%。 0 : 0 . 0 0 1 5 m a s s % 以下 ◦係形成硬質的氧化物系非金屬夾雜物而以使耐轉動 抗疲勞壽命降低需低爲佳，惟可予容許至0 . 0 0 1 5 Mass%爲止。由而、0含有量爲0.0015 ma s s%以下，宜爲0 . OOlOma s s%以下。Cr: More than 1.60 to 3.50 ma s s% C r is used to stabilize carbides, and it is useful to improve wear resistance by keeping carbides after quenching. In addition, the hardenability is improved, and the spheroidized structure is promoted to improve the cold workability. These effects cannot be obtained when the amount of C r added is less than 1.60 m a s s%. If it exceeds 3.5 MPa as s%, the amount of carbides remaining by quenching will increase. As a result, the amount of C solid-fused to the substrate will be reduced, and the strength and the fatigue life will be reduced. Therefore, the amount of C r added is more than 1.60 to 3.50ma s s%, and preferably more than 1,60 to 2.50mass%. 0: 0. 0 0 1 5 mass% or less ◦ It is better to form hard oxide-based non-metallic inclusions in order to reduce the rotation resistance and fatigue life, but allow it to reach 0. 0 0 1 5 Mass% until. Therefore, the content of 0 is 0.0015 ma s s% or less, and preferably 0. OOlOma s s% or less.
Sb : 0 . OOlOma s s% 以下 S b爲於本發明尤其重要的元素。在具有抑制脫碳層 之生成且使熱處理生產性提高的作用之點上較宜。然而’ 使熱加工性或韌性降低，並使耐轉動抗疲勞使用壽命顯著 降低。因此，有限制Sb量至0 . OOlOrna s s%以 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） — — — — — — — — — — — r'v ^ III — — II ^* — — — — — 1 — (請先閲讀背面之注意事項再填寫本頁> -8- 454 〇4 A7 B7 經濟部智慧財產局貝工消費合作社印製 五、發明說明（6 ) 下之必要。 再者，以下所示的元素之中，亦以含有一種或二種以 上成爲可能。 S i : 2 . 5ma s s%以下 S i爲使退火軟化阻力增加的元素。結果，提高淬火 退火後之強度，使耐轉動抗疲勞使用壽命提高。又，對鋼 之低氧化有助的元素亦可用作熔製時之脫氧劑。然而，超 過2 . 5 m a s s %並予添加時，則加工性及朝[性會降低 。因此，S i係以2 . 5ma s s%以下添加。宜爲在 0.15〜2.0m ass%之範圍添加。 Μ η : 2 . 5 m a s s 以下· Μη係使鋼之退火性提高的元素。其結果’使其底麻 田散之韌性及強度提高，並使耐轉動抗疲勞使用壽命提高 。然而，若添加超過2 . 5 m a s s %時，則被削性及韌 性會降低。因此，Μ η係以2 . 5 m a s s %以下―添加。 宜爲在0 . 10〜2 . 〇ma s s%之範圍添加。Sb: 0. OOlOma s s% or less Sb is an element particularly important in the present invention. It is preferable from the viewpoint of suppressing the formation of the decarburized layer and improving the productivity of heat treatment. However, 'reduces the hot workability or toughness and significantly reduces the rotation and fatigue life. Therefore, there is a limit to the amount of Sb to 0.001Orna ss% at this paper scale to apply the Chinese National Standard (CNS) A4 specification (210 X 297 mm) — — — — — — — — — — — r'v ^ III — — II ^ * — — — — — 1 — (Please read the notes on the back before filling in this page> -8- 454 〇4 A7 B7 Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (6) In addition, it is possible to include one or two or more of the elements shown below. S i: 2.5ma ss% or less S i is an element that increases the softening resistance of annealing. As a result, quenching is improved. The strength after annealing increases the service life of rotation resistance and fatigue resistance. In addition, the elements that contribute to the low oxidation of steel can also be used as deoxidizers during melting. However, when it exceeds 2.5 mass% and is added, then Workability and orientation will decrease. Therefore, Si is added at 2.5ma ss% or less. It should be added in the range of 0.15 to 2.0m ass%. Μ η: 2.5 mass or less An element with improved annealing properties. As a result, it improves the toughness and strength of Asada It increases the resistance to rotation and fatigue, but increases the cutting resistance and toughness if it exceeds 2.5 mass%. Therefore, M η is added at 2.5 mass% or less. Add in the range of 0.1 to 2.0 ss%.
Mo:2.. 5mass% 以下Mo: 2: 5mass% or less
Mo係使退火性提高的元素。其結果’使強度提高並 使耐轉動抗疲勞使用壽命提高。然而，若添加超過2 . 5 m a s s %時，則使碳化物安定化。結果’強度降低並使 耐轉動抗疲勞使用壽命降低。又Mo亦爲價昂的元素。因 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） I I /ivv — — — · (請先閲讀背面之注意事項再填窝本頁) 經濟部智慧財產局貝工消費合作社印製 454 04 2 Λ7 I_______ B7___ 五、發明說明（7 ) 此’Mo係以2 . 5ma s s%以下添加。宜爲在 〇 · 1〇〜1 . 5ma s s%之範圍添加。Mo is an element that improves annealing properties. As a result, the strength is increased, and the durability against rotation and fatigue is improved. However, when it exceeds 2.5 m a s s%, the carbide is stabilized. As a result, the strength is reduced and the service life against rotation and fatigue is reduced. Mo is also an expensive element. Because this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) II / ivv — — — (Please read the precautions on the back before filling this page) Intellectual Property Bureau, Ministry of Economic Affairs, Shellfish Consumer Cooperative Printing 454 04 2 Λ7 I_______ B7___ 5. Description of the invention (7) This' Mo is added at 2.5ma ss% or less. It is desirable to add it in the range of 0.1 to 1.5ma s s%.
Ni:3.〇mass%以下 N i爲使退火性提高的元素。其結果，使強度提高並 使耐轉動抗疲勞使用壽命提高。然而，添加超過3 . 0 ma s s%之效果係正飽和的。又，Ni亦係價昂的元素 。因此，Ni由兼具所得的效果及成本，係以3 . 0 ma s s%以下添加。宜爲〇 . 10〜2. 〇m. as s% 之範圍添加。Ni: 3.0 mass% or less Ni is an element that improves annealing properties. As a result, the strength is improved, and the rotation and fatigue life is improved. However, the effect of adding more than 3.0 ma s s% is positively saturated. Also, Ni is an expensive element. Therefore, Ni is added at a ratio of 3.0 ma s s% or less due to the combined effects and costs. It should be added in the range of 0.1 to 2. 〇m. As s%.
Nb:1.5mass%以下Nb: 1.5mass% or less
Nb爲使退火性提高的元素。其結果，係使強度提高 並使耐轉動抗疲勞使用壽命提高。然而，若添加超過 1 . 5ma s s%時，則碳化物會予安定化。其結果’強 度降低，耐轉動抗疲勞使用壽命會降低。又，N b爲價昂 的元素。因此，Nb係以1 . 5ma s s%以下添―加。宜 爲0 . 05〜1 . 〇ma s s%之範圍添加。 V:1.5ma_ss% 以下 V爲使退火性提高的元素。其結果’使強度提高並使 耐轉動耐疲勞使用壽命提高。然而’若添加超過1 . 5 m a s s %時，則使碳化物安定化。其結果，強度降低’ 耐轉動抗疲勞使用壽命降低。又，V亦爲價昂的元素。因 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1!!! .、裝· ！!訂·1'1! !^v (請先閲讀背面之注意事項再填寫本頁) -10- 經濟部智慧財產局貝工消費合作社印製 454 042 A7 .. __B7__ 五、發明說明（8 ) 此，V係以1 . 5ma s s%以下添加。宜爲〇 . 05〜 1.. 〇ma s s%之範圍添加。Nb is an element that improves annealing properties. As a result, the strength is increased, and the rotation and fatigue life is improved. However, if more than 1.5ma s s% is added, the carbide will be stabilized. As a result, the strength is reduced, and the rotation and fatigue life is reduced. N b is an expensive element. Therefore, Nb is added at or below 1.5ma s s%. It should be added in the range of 0.05 to 1.0 s s%. V: 1.5ma_ss% or less V is an element that improves annealing properties. As a result, the strength is increased, and the durability against rotation and fatigue is improved. However, when '' is added in excess of 1.5 m a s s%, the carbide is stabilized. As a result, the strength is reduced, and the durability against rotation and fatigue is reduced. Also, V is an expensive element. Because this paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1 !!! ! Order · 1'1!! ^ V (Please read the notes on the back before filling in this page) -10- Printed by Shelley Consumer Cooperative, Intellectual Property Bureau, Ministry of Economic Affairs 454 042 A7 .. __B7__ V. Description of the Invention (8) Therefore, V is added at 1.5ma ss% or less. It should be added in the range of 0.05 to 1. 〇ma s s%.
Cu:2.〇mass%以下 C u爲使退火性提高的元素。其結果，使強度提高並 使耐轉動耐疲勞使用壽命提高。然而，若添加超過2.0 m a s s %時，則使鍛造性降低。因此，C u係以2 . 0 ma s s%以下添加。宜爲〇 . 1〇〜1 · 5ma s s% 之範圍添加。 . A1 :〇.〇8mass%以下 A 1爲使淬火軟化阻力增大的元素。其結果，提高退 火淬火後的強度，並使耐轉動抗疲勞使用壽命提高。又亦 對鋼之低氧化有助的元素用作熔製時之脫氧劑。另一方面 ，若添加超過0 . 0 8 m a s s %時，則會使加工性及韌 性降低。由而A 1係以0 . 0 8 m a s s %以下添加。宜 爲在0 . 005〜0 . 05ma s s%之範圍添加。 本發明係由上述的各元素所構成，惟雜質元素之P、 S、 Ti及N係需予抑制成下述範圍作爲較佳的實施之形 態爲宜。 P:0.025mass%以下 P係使鋼之韌性及耐轉動抗疲勞使用壽命降低。因此 ，以需儘可能低爲佳。其容許上限爲0 . 0 2 5 m a s s 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） ---! 裝-------一訂· —I-·! — · (請先閲讀背面之注意事項再填寫本頁) -11 - Α7 Β7 五、發明說明（9 ) %’宜爲以〇 . 〇15ma s s. %爲上限。 (請先閲讀背面之注旁爹項再填寫本賀) S : 0 . 〇25ma s s%以下 S係與Μη鍵結而形成Mn S，使被削性提高。然而 ，若使含有多量時，則使耐轉動抗疲勞使用壽命降低。其 容許上限爲〇 . 〇25ma s s%，宜爲以0 . 010 m a s s %爲上限。Cu: 2.0 mass% or less Cu is an element that improves the annealing properties. As a result, the strength is improved, and the durability against rotation and fatigue is improved. However, if it exceeds 2.0 m a s s%, the forgeability is reduced. Therefore, Cu is added at 2.0 ma s s% or less. It should be added in a range of 0.1 to 1 · 5ma s s%. A1: 0.08 mass% or less A 1 is an element that increases the hardening softening resistance. As a result, the strength after quenching and quenching is increased, and the rotation and fatigue life is improved. It also contributes to the low oxidation of steel as a deoxidizer during melting. On the other hand, when it exceeds 0.08 m a s s%, the workability and toughness are reduced. As a result, A 1 is added below 0.08 m a s s%. It should be added in the range of 0.005 to 0.05ma s s%. The present invention is composed of each of the above-mentioned elements, but the P, S, Ti, and N elements of the impurity elements need to be suppressed to the following ranges as a preferred embodiment. P: 0.025mass% or less P is used to reduce the toughness and rotation and fatigue life of steel. Therefore, it is better to keep the demand as low as possible. The permissible upper limit is 0. 0 2 5 mass This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ---! Packing ------- one order · —I- ·! — · (Please read the precautions on the back before filling this page) -11-Α7 Β7 V. Description of the invention (9)% 'should be set to 0.1515 s s.% As the upper limit. (Please read the note beside the note on the back before filling in the congratulations.) S: 0. 〇25ma s s% or less S is bonded to Mn to form Mn S, which improves the machinability. However, if it is contained in a large amount, the resistance to rotation and fatigue is reduced. The permissible upper limit is 0.025 ma s s%, and preferably the upper limit is 0.010 ma s s%.
Ti:〇.〇l〇mass%以下 . T i係形成硬質的氮化物，並使耐轉動抗疲勞壽命降 低。因此，以儘可能低爲佳。其容許上限爲0 . 0 1 0 mass%，宜爲以〇.〇〇5mass%爲上限。 N:〇.〇15mass%以下 N係形成硬質的氮化物，並使耐轉動抗疲勞壽命降低 。因此，以儘可能低爲佳。其容許上限爲0 . 0 1 5 mas s%，宜爲以〇 . 〇〇8ma s s%爲上限。一 經濟部智慧財產局貝工消费合作社印製 圖式之簡單說明 第1圖爲表示Sb量影響B10壽命之圖形。 實施發明而採的最佳形熊 以下表示本發明之實施例。且，本發明之實施態樣並 非受此實施例所限定者》 私紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -12- ^ ^4 0 4 2 A7 _______B7 五、發明說明（1〇 ) (請先閱讀背面之注$項再填寫本頁) 將具有表1及表2所示的化學組成之鋼在轉爐內溶製 ’其後利用連續鑄造作成4 Ο Ο X 5 6 Omm之鋼塊（ bloom )。對該鋼塊在1 2 0 0°C施加3 0小時之擴散淬火 ，其後，利用熱軋製成6 5mm0之鋼棒。於該棒鋼內， 施加8 6 0 °C之正火（normalizing)處理、7 6 0〜 8 0 0°C之球狀化正火處理，再在8 3 Ot保持3 0 mi η後油退火，在180 °C施以2hr之回火。將該回 火材切削及硏磨加工，對各鋼可得各1 2片6 0mm办X 5 mm之圓盤型耐轉動抗疲勞使用壽命試片。 耐轉動抗疲勞試驗，係使用森式推力（thrust)型耐轉 動抗疲勞試驗機，以赫斯（Hertz)最大接觸應力： 5 2 6 0 Μ P a、葶複應力數：3 0 Η z，及潤滑油： # 6 8渦輪油之條件進行。將此試驗結果作爲依韋布爾（ Weibull)分布規定者並予彙整於或然率紙上，求取Β 1 0 使用壽命（累積破損或然率：於1〇%之至剝離發生爲止 的總負載次數）。以習用鋼之鋼1 ( J I S鋼種： S U J 2 )之使用壽命爲1時的相對比予以評估。一 經濟部智慧財產局貝工消費合作社印製 評估結果係合倂表示於表1及表2。由表1及表2顯 而可知，鋼2及鋼6〜鋼2 5之發明鋼，係具有Β 1 0使 用壽命比爲習用鋼（鋼1)之1.7〜5.6倍的優越的 數値。 相對於此’比較鋼之鋼4爲C ’鋼5爲0，各超出本 發明範圍，Β 1 0使用壽命比係較習用鋼低劣。又，比較 鋼之鋼3係化學組成除S b外與發明鋼之鋼2並無大差異 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐〉 -13- 454 04 2 A7 明說 明發五 1 時 B 劣 之低 3 較 鋼係 ’ 較 此比 如 2 僅 · 不 3 〇 ， 之果 一—-- QW 爲出 比現 命顯 壽的 用然 使顯 2 效 鋼之 與低 ， 降 量 bTi: 0.0001 mass% or less. The Ti system forms hard nitrides and reduces the rotation and fatigue life. Therefore, it is better to be as low as possible. The allowable upper limit is 0.01 mass%, and preferably the upper limit is 0.05mass%. N: 0.15 mass% or less N series forms hard nitrides and reduces the rotation resistance and fatigue life. Therefore, it is better to be as low as possible. The allowable upper limit is 0.015 mas s%, and the upper limit is preferably 0.08ma s s%. I. Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics. Brief description of the drawing. Figure 1 shows the amount of Sb affecting the life of B10. Best Shaped Bears for Implementing the Invention Examples of the present invention are shown below. Moreover, the implementation aspect of the present invention is not limited by this embodiment. "The private paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -12- ^ ^ 4 0 4 2 A7 _______B7 V. Invention Explanation (1〇) (Please read the note on the back before filling in this page) Melt the steel with the chemical composition shown in Table 1 and Table 2 in the converter, and then use continuous casting to make 4 〇 〇 X 5 6 Omm Bloom. Diffusion quenching was applied to the steel block at 120 ° C for 30 hours, and thereafter, a steel rod of 65 mm0 was produced by hot rolling. In this bar steel, a normalizing treatment at 860 ° C and a spheroidizing normalizing treatment at 7 600 to 800 ° C are applied, and the oil is annealed after maintaining 30 mi η at 8 3 Ot. Tempering at 180 ° C for 2hr. By cutting and honing the tempering material, 12 pieces of 60mm and 5mm disc-type rotation-resistant and fatigue-resistant test pieces can be obtained for each steel. Rotational anti-fatigue test, using Thrust type anti-rotational anti-fatigue tester, with Hertz maximum contact stress: 5 2 6 0 Μ P a, 葶 complex stress number: 3 0 Η z, And lubricating oil: # 6 8 conditions of turbine oil. Use this test result as the Weibull distribution rule and aggregate it on the probability paper to obtain the B 10 service life (cumulative breakage probability: the total number of loads from 10% to the occurrence of peeling). The relative ratio when the service life of steel 1 (J I S steel type: S U J 2) of conventional steel is 1. 1 Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The evaluation results are shown in Table 1 and Table 2 together. As can be seen from Tables 1 and 2, the invention steels of steel 2 and steel 6 to steel 25 have superior service life ratios of B 1 0 to 1.7 to 5.6 times the conventional steel (steel 1). In contrast, the steel 4 of the comparative steel is C, and the steel 5 is 0, each of which is outside the scope of the present invention. The service life ratio of B 10 is inferior to that of conventional steel. In addition, the chemical composition of the steel 3 series of the comparison steel is not significantly different from that of the steel 2 of the invention steel except S b. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm> -13- 454 04 2 A7 It is clearly stated that at 5: 1, B is inferior to 3, which is lower than steel, such as 2 only · not 3 〇, the result of one --- QW is more effective than the life expectancy, which makes the efficiency of 2 effective steel lower. , Decrement b
IX (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 χ 297公釐） -14- 4 54 0 4 2 A7 B7 五、發明說明（12 ) 經濟部智慧財產局員工消費合作社印製 備註 習用鋼 發明鋼 比較鋼 比較鋼 比較鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 B10M用壽命比 p (N oo l>； ON cn a\ CO CN CO v〇 03 C/3 N 〇 0.0009 0.0007 0.0009 0.0011 0.0024 0.0010 0.0008 0.0007 0.0009 0.0007 0.0008 0.0006 0.0008 0.0004 0.0006 Z 0.0052 0.0040 0.0042 0.0042 0.0055 0.0044 0.0041 0.0037 0.0048 0.0038 0.0043 0,0041 0.0041 0.0036 0.0038 泛 0.0030 0.0008 0.0028 0.0008 0.0009 0.0008 0.0008 0.0007 0.0007 0.0008 0.0008 0.0008 0-.0007 0.0006 0.0008 0.003 0.002 0.004 0.005 0.005 0.003 0.003 0.004 0.005 0.003 0.004 0.003 0.003 0.002 0.002 0.021 1 1 1 1 1 1 1 1 1 1 1 0.047 0.023 ό 1 1 1 i 1 1 1 1 1 1 1 1.32 1 1 1 1 1 1 1 1 1 1 1 1 1 赛 »-H 1 1 1 1 i 1 1 1 1 1 1 1 1 0.79 1 1 1 1 > 1 1 1 '1 1 1 1 1 1 0.83 1 1 1 1 ο 1 1 1 1 1 1 1 1 1.24 1 1 Γ 1 1 2.46 2.43 2.20 2.21 笔 2.00 1 ! 2.04 ON O) H 1.96 O) I 1 2.02 § § 1.97 GO 0.005 0.003 0.004 0.005 0.008 0.004 0.003 0.004 0.004 0.003 0.003 0.008 0.005 0.004 0.005 CL· 0.015 0.010 0.015 0.015 0.013 0.012 0.014 0.009 0.010 0.010 0.008 0.013 0.012 0.011 0.009 c s 0.46 1 1 1 1 1 1 OO 1 1 1 1 1 I 0.42 00 0.21 i 1 I 1 1 JO H 1 1 1 1 1 1 1 0.23 U 0.99 1.00 0.40 S S S 1-H s 1..04 S s 8 Τ-Ή g 8 r-H 0.99 CO 寸 in VO OO as o T-1 cn 12 裝·!— —^.-^ίιι-^'γ''ν (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -15- 五、發明說明（13 ) 2« 經濟部智慧財產局員工消費合作社印製 備註 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 發明鋼 B1酿用壽命比 (鋼 No.l:l) v〇 cn 〇\ cn in CS CO v〇 vn S3 cS 县 m 〇 0.0006 0.0007 0.0008 0.0007 0.0007 0.0005 0.0006 0.0008 0.0007 0.0009 0.0038 0.0042 0.0041 0.0G38 0.0039 0.0040 0.0039 0.0042 0.0042 0.0038 泛 0.0008 0.0009 0.0007 0.0009 0.0007 0.0006 0.0007 0.0009 0:_ 0.0007 0.005 0.002 0.003 0.002 0.004 0.002 0.003 0.004 0.004 0.004 0.023 0.025 0.021 0.022 0.022 0.028 0.023 0.025 0.021 0.024 c3 I I 1 1 1 1 0.48 0.37 o 0.28 g I I 1 1 1 1 0.88 0.79 0.76 I I 1 1 1 0.25 1 1 1 0.18 > I I 1 1 0.31 i '1 1 0.25 T—H CN ο s I I 1 0.47 0.26 1 1 0.49 1 0.43 v〇 ON r~H ON T—H oo O) »—H § vo r—H ON i—H 00 1 I 1.82 p· S 1—H oo 0.004 0.003 0.003 0.004 0.005 0.002 0.003 0.005 0.004 J 0.005 cu 0.008 0.011 0.010 0.010 0.008 0.012 0.012 0.010 0.011 0.009 c s T—H c5 5 1 ( s t—* 0.47 0.42 0.48 0.42 0.38 0.86 0.42 0.79 0.12 1 * 1.02 0.27 0.27 0.25 0.26 0.26 — 0.24 u 0.98 s 0.99 s 11 1 0.99 8 T-H s 0.97 v〇 OO ON cn <N 3 --------I---I ^----------^------0¾.. (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準綱鑛格(綱97 454 04 2 A7 B7 五、發明說明（14 ) 產業上之可利用性 若依本發明，大量添加C r ’尤其僅藉由抑制鋼中 Sb量至0 . OOlOma s s%以下等的成分調整，可 得耐轉動抗疲勞使用壽命尤其優越的軸承用鋼。Sb量之 限制，係可由回爐料（scrap )之管理可容易實現，在生產 性方面亦佳，有助於工業規模生產。 -----------C裝--- (請先閲讀背面之注項再填寫本頁) 訂·1!-------# 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -17-IX (Please read the precautions on the back before filling out this page) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives This paper is printed in accordance with China National Standard (CNS) A4 (210 χ 297 mm) -14- 4 54 0 4 2 A7 B7 V. Description of the invention (12) Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives, India, India, India, India, Japan, Japan, Japan, Japan, Japan, Japan, Japan Steel B10M life ratio p (N oo l >; ON cn a \ CO CN CO v〇03 C / 3 N 〇 0.0009 0.0007 0.0009 0.0011 0.0024 0.0010 0.0008 0.0007 0.0009 0.0007 0.0008 0.0006 0.0008 0.0004 0.0006 Z 0.0052 0.0040 0.0042 0.0042 0.0055 0.0044 0.0041 0.0037 0.0048 0.0038 0.0043 0,0041 0.0041 0.0036 0.0038 Pan 0.0030 0.0008 0.0028 0.0008 0.0009 0.0008 0.0008 0.0007 0.0007 0.0008 0.0008 0.0008 0-.0007 0.0006 0.0008 0.003 0.002 0.004 0.005 0.005 0.005 0.003 0.003 0.004 0.005 0.003 0.004 0.003 0.003 0.002 0.002 0.021 1 1 1 1 1 1 1 1 1 1 1 1 0.047 0.023 ό 1 1 1 i 1 1 1 1 1 1 1 1.32 1 1 1 1 1 1 1 1 1 1 1 1 1 Race »-H 1 1 1 1 i 1 1 1 1 1 1 1 1 0.79 1 1 1 1 > 1 1 1 '1 1 1 1 1 1 1 0.83 1 1 1 1 ο 1 1 1 1 1 1 1 1 1.24 1 1 Γ 1 1 2.46 2.43 2.20 2.21 pen 2.00 1! 2.04 ON O) H 1.96 O) I 1 2.02 § § 1.97 GO 0.005 0.003 0.004 0.005 0.008 0.004 0.003 0.004 0.004 0.003 0.003 0.008 0.005 0.004 0.005 CL · 0.015 0.010 0.015 0.015 0.013 0.012 0.014 0.009 0.010 0.010 0.008 0.013 0.012 0.011 0.009 cs 0.46 1 1 1 1 1 1 OO 1 1 1 1 1 I 0.42 00 0.21 i 1 I 1 1 JO H 1 1 1 1 1 1 1 0.23 U 0.99 1.00 0.40 SSS 1-H s 1..04 S s 8 Τ-Ή g 8 rH 0.99 CO inch in VO OO as o T-1 cn 12 installed ·! — — ^. -^ ίιι-^ 'γ''ν (Please read the notes on the back before filling in this page) This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) -15- 5. Description of the invention ( 13) 2 «Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs of the People's Republic of China. : l) v〇cn 〇 \ cn in CS CO v〇vn S3 cS County m 〇 0.0006 0.0007 0.0008 0.0007 0.0007 0.0005 0.0006 0.0008 0.0007 0.0009 0.0038 0.0042 0.0041 0.0G38 0.0039 0.0040 0.0039 0.0042 0.0042 0.0042 0.0038 0.0008 0.0009 0.0007 0.0009 0.0007 0.0006 0.0007 0.0009 0: _ 0.0007 0.005 0.002 0.003 0.002 0.004 0.002 0.003 0.004 0.004 0.004 0.023 0.025 0.021 0.022 0.022 0.028 0.023 0.025 0.021 0.024 c3 II 1 1 1 1 0.48 0.37 o 0.28 g II 1 1 1 1 0.88 0.79 0.76 II 1 1 1 0.25 1 1 1 0.18 > II 1 1 0.31 i '1 1 0.25 T—H CN ο s II 1 0.47 0.26 1 1 0.49 1 0.43 v〇ON r ~ H ON T—H oo O) »—H § vo r—H ON i—H 00 1 I 1.82 p · S 1—H oo 0.004 0.003 0.003 0.004 0.005 0.002 0.003 0.005 0.004 J 0.005 cu 0.008 0.011 0.010 0.010 0.008 0.012 0.012 0.010 0.011 0.01 cs T—H c5 5 1 (st— * 0.47 0.42 0.48 0.42 0.38 0.86 0.42 0.79 0.12 1 * 1.02 0.27 0.27 0.25 0.26 0.26 — 0.24 u 0.98 s 0.99 s 11 1 0.99 8 TH s 0.97 vOOON ON cn < N 3 -------- I --- I ^ ---------- ^ ------ 0¾ .. (Please read the notes on the back before filling in this page) This paper size is applicable to the Chinese national standard outline grid (Outline 97 454 04 2 A7 B7 V. Description of the invention (14) The industrial availability according to this According to the invention, especially by adding a large amount of C r ′, only by suppressing the Sb content in the steel to be adjusted to less than 0.00lOma ss%, etc., a bearing steel having particularly excellent resistance to rotation and fatigue can be obtained. The limitation of the amount of Sb can be easily realized by the management of scrap, and it is also good in terms of productivity, which is helpful for industrial scale production. ----------- C Pack --- (Please read the note on the back before filling out this page) Order1! ------- # Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The paper size of the paper is applicable to China National Standard (CNS) A4 (210 X 297 mm) -17-
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31879598A JP3779078B2 (en) | 1998-11-10 | 1998-11-10 | Bearing steel with excellent rolling fatigue life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW454042B true TW454042B (en) | 2001-09-11 |
Family
ID=18103038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW088119071A TW454042B (en) | 1998-11-10 | 1999-11-02 | Steel for bearing excellent in rolling fatigue life |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1048744A4 (en) |
| JP (1) | JP3779078B2 (en) |
| KR (1) | KR100508463B1 (en) |
| CA (1) | CA2317658A1 (en) |
| TW (1) | TW454042B (en) |
| WO (1) | WO2000028100A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045957A (en) * | 2013-01-06 | 2013-04-17 | 奉化市金燕钢球有限公司 | High-carbon-chromium stainless bearing steel |
| RU2591907C2 (en) * | 2011-12-20 | 2016-07-20 | Актиеболагет Скф | Method of making steel component by butt fusion welding and component made using said method |
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| JP3889931B2 (en) * | 2001-01-26 | 2007-03-07 | Ｊｆｅスチール株式会社 | Bearing material |
| JP4586313B2 (en) * | 2001-07-31 | 2010-11-24 | Ｊｆｅスチール株式会社 | Manufacturing method of high carbon seamless steel pipe with excellent secondary workability |
| JP4252837B2 (en) * | 2003-04-16 | 2009-04-08 | Ｊｆｅスチール株式会社 | Steel material with excellent rolling fatigue life and method for producing the same |
| EP2229460B1 (en) * | 2007-12-20 | 2020-10-21 | Posco | Heat treatment method of steel bearing and steel bearing |
| JP5857433B2 (en) * | 2011-04-14 | 2016-02-10 | 日本精工株式会社 | Method for manufacturing rolling guide device |
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| JP5810867B2 (en) * | 2011-11-25 | 2015-11-11 | 新日鐵住金株式会社 | Bearing steel |
| KR20140107289A (en) * | 2011-12-20 | 2014-09-04 | 아크티에볼라게트 에스케이에프 | Method, ring & bearing |
| JP6056647B2 (en) * | 2012-06-28 | 2017-01-11 | Ｊｆｅスチール株式会社 | Bearing steel manufacturing method and bearing steel obtained by the manufacturing method |
| CN104087866B (en) * | 2014-07-31 | 2016-04-06 | 宁国市宁武耐磨材料有限公司 | A kind of ball mill high heat-resistant and wear-resistant ball |
| CN104109794B (en) * | 2014-08-01 | 2016-06-01 | 宁国市宁武耐磨材料有限公司 | Chromium complex alloyed resistance to abrading-ball in a kind of |
| CN105296838A (en) * | 2015-10-22 | 2016-02-03 | 宁国市南方耐磨材料有限公司 | High-hardness and high-toughness abrasion-resisting ball |
| CN108559913A (en) * | 2018-05-16 | 2018-09-21 | 浙江健力股份有限公司 | A kind of GCr15 Steel Pipe For Bearings and its preparation process |
| US11788579B2 (en) | 2020-02-17 | 2023-10-17 | Nsk Ltd. | Rolling bearing and method for producing same |
| CN112111696A (en) * | 2020-09-29 | 2020-12-22 | 钢铁研究总院 | High-carbon bearing steel with high isotropy and long contact fatigue life and manufacturing method thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649589A (en) * | 1992-07-29 | 1994-02-22 | Nkk Corp | Bearing steel for cold forming |
| JPH06271982A (en) * | 1993-03-23 | 1994-09-27 | Kawasaki Steel Corp | Bearing steel excellent in property of retarding change in microstructure due to repeated stress load |
| JP3383347B2 (en) * | 1993-03-30 | 2003-03-04 | 川崎製鉄株式会社 | Bearing steel with excellent heat treatment productivity and delayed microstructure change due to repeated stress loading |
| JP3243330B2 (en) * | 1993-03-30 | 2002-01-07 | 川崎製鉄株式会社 | Bearing steel with excellent microstructure change delay characteristics due to cyclic stress loading and heat treatment productivity |
| JP3233725B2 (en) * | 1993-03-30 | 2001-11-26 | 川崎製鉄株式会社 | Bearing steel with excellent microstructure change delay characteristics due to repeated stress loading |
| JPH0711386A (en) * | 1993-06-25 | 1995-01-13 | Nkk Corp | Bearing steel for cold forming |
| JP3411388B2 (en) * | 1994-05-27 | 2003-05-26 | 川崎製鉄株式会社 | Bearing member with excellent heat treatment productivity and delay characteristics of microstructure change due to repeated stress load |
| JPH0892689A (en) * | 1994-09-21 | 1996-04-09 | Kawasaki Steel Corp | Steel for bearing excellent in property for delaying change in microstructure caused by repeated stress load |
| JP3338761B2 (en) * | 1996-02-29 | 2002-10-28 | 川崎製鉄株式会社 | Bearing material |
| JP3308836B2 (en) * | 1996-12-06 | 2002-07-29 | 川崎製鉄株式会社 | Bearing steel |
-
1998
- 1998-11-10 JP JP31879598A patent/JP3779078B2/en not_active Expired - Lifetime
-
1999
- 1999-10-28 WO PCT/JP1999/005986 patent/WO2000028100A1/en active IP Right Grant
- 1999-10-28 CA CA002317658A patent/CA2317658A1/en not_active Abandoned
- 1999-10-28 KR KR10-2000-7007005A patent/KR100508463B1/en active IP Right Grant
- 1999-10-28 EP EP99951124A patent/EP1048744A4/en not_active Withdrawn
- 1999-11-02 TW TW088119071A patent/TW454042B/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2591907C2 (en) * | 2011-12-20 | 2016-07-20 | Актиеболагет Скф | Method of making steel component by butt fusion welding and component made using said method |
| CN103045957A (en) * | 2013-01-06 | 2013-04-17 | 奉化市金燕钢球有限公司 | High-carbon-chromium stainless bearing steel |
| CN103045957B (en) * | 2013-01-06 | 2015-07-22 | 奉化市金燕钢球有限公司 | High-carbon-chromium stainless bearing steel |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010033504A (en) | 2001-04-25 |
| JP2000144326A (en) | 2000-05-26 |
| EP1048744A4 (en) | 2001-02-28 |
| KR100508463B1 (en) | 2005-08-17 |
| JP3779078B2 (en) | 2006-05-24 |
| CA2317658A1 (en) | 2000-05-18 |
| EP1048744A1 (en) | 2000-11-02 |
| WO2000028100A1 (en) | 2000-05-18 |
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