专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20120222778A1 ROLLING/SLIDING PART AND PRODUCTION METHOD THEREOF 审中-公开
标题翻译：滚动/滑动部件及其制造方法
公开(公告)号：US20120222778A1
公开(公告)日：2012-09-06
申请号：US13472353
申请日：2012-05-15
申请人： Katsuhiko KIZAWA , Tsuyoshi Mikami
发明人： Katsuhiko KIZAWA , Tsuyoshi Mikami
IPC分类号： C23C8/22 , C21D6/00
CPC分类号： C23C8/22 , C23C8/02 , C23C8/80 , F16C33/32 , F16C33/62 , F16C33/64 , Y10T29/49679
摘要： A production method of a rolling/sliding part which includes applying a spherodizing annealing treatment to a steel to render an average particle diameter of the carbide of the surface layer portion in a range of 0.3 to 0.6 μm and a maximum particle diameter thereof 4 μm, to render the surface hardness 62 or more by Rockwell C hardness and to render a solid solution carbon amount in a residual austenite of the surface layer portion in a range of 0.95 to 1.15% by weight.
摘要翻译：一种轧制/滑动部件的制造方法，其包括对钢进行球化退火处理，使表层部的碳化物的平均粒径在0.3〜0.6μm的范围内，最大粒径为4μm，通过洛氏C硬度使表面硬度达到62以上，并使表层部的残留奥氏体中的固溶碳量在0.95〜1.15重量％的范围内。

2. 发明申请

US20110243488A1 BEARING CONSTITUENT MEMBER AND PROCESS FOR PRODUCING THE SAME, AND ROLLING BEARING HAVING BEARING CONSTITUENT MEMBER 有权
标题翻译：轴承构件及其制造方法以及具有轴承构件的滚动轴承
公开(公告)号：US20110243488A1
公开(公告)日：2011-10-06
申请号：US12998864
申请日：2009-12-11
申请人： Katsuhiko Kizawa , Tsuyoshi Mikami , Kentarou Ono , Chikara Nakajima
发明人： Katsuhiko Kizawa , Tsuyoshi Mikami , Kentarou Ono , Chikara Nakajima
IPC分类号： F16C33/58 , B32B15/04 , C23C8/32 , C23C8/80
CPC分类号： F16C33/62 , C21D1/06 , C21D1/18 , C21D6/04 , C21D9/40 , C21D2211/001 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/22 , C22C38/24 , C23C8/32 , F16C19/06 , F16C33/64 , Y10T29/49679
摘要： There is provided a bearing constituent member capable of achieving a long life of a rolling bearing and securing sufficient static loading capacity and dimensional stability and a production process thereof as well as a rolling bearing having a long life and exhibiting sufficient static loading capacity and dimensional stability.A workpiece obtained from a steel containing 3.2 to 5.0% by mass of Cr and 0.05% by mass or more to less than 0.5% by mass of V is subjected to a heat treatment such as a carbonitriding treatment.Thereby, the following are achieved: the content of C in the surface layer ranging from the surface of the bearing constituent member of the rolling bearing to 10 μm is 1.1 to 1.6% by mass, Vickers hardness at the position of a depth of 50 μm from the surface is 740 to 900 (Rockwell C hardness is 62 to 67), the γ amount at the position of a depth of 10 μm from the surface is 20 to 55% by volume, particles composed of vanadium nitride having a particle diameter of 0.2 to 2 μm and/or particles composed of vanadium carbonitride having a particle diameter of 0.2 to 2 μm are present in the surface layer ranging from the surface to 10 μm, and the area ratio of the particles in the surface layer ranging from the surface to 10 μm is 1 to 10%.
摘要翻译：提供了能够实现滚动轴承的长寿命并且确保足够的静载荷能力和尺寸稳定性及其制造方法的轴承构件，以及具有长寿命并且具有足够的静载荷能力和尺寸稳定性的滚动轴承。从含有3.2〜5.0质量％的Cr和0.05质量％以上至小于0.5质量％的V钢获得的工件进行碳氮共渗处理等热处理。由此，能够获得从滚动轴承的轴承构件的表面到表面的表面层中的C的含量为1.1〜1.6质量％，深度为50μm的维氏硬度表面为740〜900（洛氏C硬度为62〜67），表面的深度为10μm的位置的γ量为20〜55体积％，粒径为 0.2〜2μm的粒子和/或粒径为0.2〜2μm的碳氮化钒构成的粒子的表面层存在于表面〜10μm的范围内，表面层的粒子的面积比例至10μm为1〜10％。

3. 发明申请

US20080047633A1 Rolling-Sliding Elements and Process for Production of the Same 审中-公开
标题翻译：滚动元件及其制造方法
公开(公告)号：US20080047633A1
公开(公告)日：2008-02-28
申请号：US11722756
申请日：2005-12-22
申请人： Katsuhiko Kizawa , Tsuyoshi Mikami , Tomoaki Nishikawa , Terumoto Fujiwara
发明人： Katsuhiko Kizawa , Tsuyoshi Mikami , Tomoaki Nishikawa , Terumoto Fujiwara
IPC分类号： C23C8/22 , F16C19/00
CPC分类号： C23C8/02 , C23C8/22 , C23C8/80 , F16C33/14 , F16C33/64 , F16C2223/12
摘要： The invention provides a rolling-sliding part which can attain more prolonged service lives even when used in rolling bearings which are exposed to contaminated lubricating oil. Rolling-sliding parts are made of steel which contains C: 0.7 to 0.9 wt. %, Si: 0.05 to 0.7 wt. %, Mn: 0.05 to 0.7 wt. %, Cr: 3.2 to 5.0 wt. %, Al: 0.04 wt. % or less, P: 0.03 wt. % or less, S: 0.03 wt. % or less, Ti: 0.005 wt. % or less, O: 0.0015 wt. % or less, at least one of Mo: less than 1.0 wt. % and V: less than 0.50 wt. %, and Fe and unavoidable impurities: balance, and which has a carburized layer in the surface. The precipitated carbide content of the layer is adjusted to 9 to 30% in terms of area ratio. At least 50% of the precipitated carbides present in the layer are of M7C3-type and/or M23C6-type in terms of area ratio. The average particle size of the carbides present in the layer is adjusted to 0.2 to 0.4 μm and the residual austenite content of the layer is adjusted to 35 to 60%.
摘要翻译：本发明提供一种滚动滑动部件，即使在暴露于受污染的润滑油的滚动轴承中使用时，其也可以获得更长的使用寿命。滚动部件由含有C：0.7〜0.9重量％的钢制成。％，Si：0.05〜0.7wt。％，Mn：0.05〜0.7wt。％，Cr：3.2〜5.0wt。％，Al：0.04wt。％以下，P：0.03重量％％以下，S：0.03重量％％以下，Ti：0.005重量％％以下，O：0.0015重量％％以下，Mo：小于1.0重量％中的至少一种。％和V：小于0.50wt。％，Fe和不可避免的杂质：平衡，并且其表面具有渗碳层。将该层析出的碳化物含量以面积比计为9〜30％。存在于层中的至少50％的沉淀碳化物为M 7 N 3 +和/或M 23 C 13。 6＆gt;型面积比。将层中存在的碳化物的平均粒径调整为0.2〜0.4μm，将该层的残留奥氏体含量调整为35〜60％。

4. 发明授权

US06893609B2 Bearing material 有权
标题翻译：轴承材料
公开(公告)号：US06893609B2
公开(公告)日：2005-05-17
申请号：US10240297
申请日：2002-01-24
申请人： Akihiro Matsuzaki , Takashi Iwamoto , Yoshio Yamazaki , Katsuhiko Kizawa , Masao Goto
发明人： Akihiro Matsuzaki , Takashi Iwamoto , Yoshio Yamazaki , Katsuhiko Kizawa , Masao Goto
IPC分类号： C22C38/00 , C21D9/40 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/60
CPC分类号： C22C38/002 , C21D9/40 , C22C38/02 , C22C38/04 , C22C38/18 , C22C38/60 , F16C33/121
摘要： A long-life bearing steel for general purpose use is provided at low cost with no use of specific secondary refining process. Specifically, a bearing material having a component composition in which C: 0.95 to 1.10 mass %, Si: 0.15 to 0.70 mass %, Mn: 1.15 mass % or less, Cr: 0.90 to 1.60 mass %, and P: 0.025 mass % or less are contained, S and O, that are elements forming nonmetallic inclusions, are contained at S: 0.025 mass % or less and O: 0.0012 mass % or less, and the rest is composed of Fe and incidental impurities, wherein the maximum diameter of the oxide-based nonmetallic inclusion is more than 10 μm, but 15 μm or less in an inspection area: 320 mm2, the number of oxide-based nonmetallic inclusions having an equivalent circle diameter of 3 μm or more is 250 or less in the inspection area: 320 mm2, while in the material, AlN is contained at 0.020 mass % or less, and or the number of sulfide-based nonmetallic inclusions having a thickness of 1 μm or more is 1,200 or less in the inspection area: 320 mm2.
摘要翻译：提供一般用途的长寿命轴承钢，成本低廉，无需特殊的二次精炼工艺。具体地说，具有C：0.95〜1.10质量％，Si：0.15〜0.70质量％，Mn：1.15质量％以下，Cr：0.90〜1.60质量％，P：0.025质量％较少含有作为形成非金属夹杂物的元素的S和O含量为S：0.025质量％以下，O：0.0012质量％以下，其余为Fe和附带杂质，其中，氧化物基非金属夹杂物的数量超过10μm，在检查区域为15mm以下，320mm 2以下，氧化物类非金属夹杂物的数目为当量圆直径3μm，或在检查区域中，更多的是250或更小：320mm 2，而在该材料中，AlN含量为0.020质量％以下，或者含有厚度为0.020质量％以下的硫化物系非金属夹杂物的数量在检查区域中，1um以上为1,200以下：320mm 2。

5. 发明授权

US06874943B2 Antifriction bearing and process for producing outer race for use in antifriction bearing 有权
标题翻译：用于减摩轴承的外圈用抗磨轴承及制造方法
公开(公告)号：US06874943B2
公开(公告)日：2005-04-05
申请号：US10308059
申请日：2002-12-03
申请人： Masao Goto , Katsuhiko Kizawa
发明人： Masao Goto , Katsuhiko Kizawa
IPC分类号： C21D9/40 , C22C38/00 , C22C38/18 , C22C38/44 , F16C13/00 , F16C33/58 , F16C33/62 , F16C33/64
CPC分类号： C21D9/40 , F16C33/58 , F16C33/62
摘要： An antifriction bearing comprises an inner race, an outer race having an outer peripheral surface to be brought into contact with other member for use as a roll, and a plurality of rolling elements arranged between the inner and outer races. The portion of the outer race from an outer peripheral surface thereof to a depth of 3 mm has a hardness of 58 to 62 in Rockwell C hardness (hereinafter referred to as “HRC”) and a hardness gradient of up to 1 HRC/1 mm from the outer peripheral surface inward, and contains 5 to 18 vol. % of retained austenite. The portion of the outer race from an inner peripheral surface thereof to a depth of 1 mm has a hardness of 61 to 64 in HRC and contains 5 to 15 vol. % of retained austenite. The center portion of the thickness of the outer race between the inner and outer peripheral surfaces thereof has a hardness of 35 to 42 in HRC. The outer race can be prevented from cracking or breaking and from undergoing plastic deformation due to use for a short period of time.
摘要翻译：一种减摩轴承包括内座圈，具有与其它构件接触的外周面的外圈用作辊，以及设置在内圈和外圈之间的多个滚动元件。从其外周面到3mm深度的外圈的部分在洛氏C硬度（以下称为“HRC”）中的硬度为58〜62，硬度梯度高达1HRC / 1mm 从外周面向内，并含有5〜18体积。％的残余奥氏体。从其内周面到1mm深度的外圈的部分在HRC中的硬度为61〜64，含有5〜15体积％。％的残余奥氏体。外圈的外周面的外周面的厚度的中心部的HRC的硬度为35〜42。可以防止外圈开裂或断裂，并且由于短时间使用而发生塑性变形。

6. 发明授权

US08640341B2 Method of producing rolling sliding member 有权
标题翻译：轧制滑动构件的制造方法
公开(公告)号：US08640341B2
公开(公告)日：2014-02-04
申请号：US12853911
申请日：2010-08-10
申请人： Towako Matsui , Katsuhiko Kizawa
发明人： Towako Matsui , Katsuhiko Kizawa
IPC分类号： B21D53/10 , F16C33/00
CPC分类号： F16C33/64 , C21D9/38 , Y10T29/49636 , Y10T29/49689 , Y10T29/49694 , Y10T29/49707 , Y10T29/49709
摘要： A method of producing a rolling sliding member, wherein, after a work for a rolling sliding member, which is made of a bearing steel and formed in a predetermined shape, is quenched, a heating start temperature is set to be 10 to 100° C., a heating finish temperature is set to be 220 to 350° C., a time between the heating finish time and the heating start time is set to be a heating time, the quenched work for the rolling sliding member is heated so that a rate of temperature increase indicated by the following formula becomes 7 to 35° C./s rate of temperature increase=(heating finish temperature−heating start temperature)/heating time, the work is tempered by being cooled without being maintained at a heating finish temperature from the heating finish time.
摘要翻译：一种滚动滑动构件的制造方法，其特征在于，在由轴承钢制成并形成为规定形状的滚动滑动构件的作业淬火后，将加热开始温度设定为10〜100℃ 加热结束温度设定为220〜350℃，将加热结束时间和加热开始时间之间的时间设定为加热时间，对滚动滑动部件进行淬火加工，由下列公式表示的温度升高率为7〜35℃/升温速度=（加热结束温度 - 加热开始温度）/加热时间，通过冷却而不进行加热回火而进行回火温度从加热完成时间。

7. 发明申请

US20110000583A1 Rolling part and manufacturing method thereof 审中-公开
标题翻译：滚动部件及其制造方法
公开(公告)号：US20110000583A1
公开(公告)日：2011-01-06
申请号：US12736089
申请日：2009-03-09
申请人： Katsuhiko Kizawa , Tomoaki Nishikawa , Takeshi Udagawa
发明人： Katsuhiko Kizawa , Tomoaki Nishikawa , Takeshi Udagawa
IPC分类号： C23C8/32 , C23C8/02 , B32B15/04
CPC分类号： C23C8/32 , C21D1/32 , C21D5/00 , C21D6/002 , C21D9/40 , C21D2211/004 , C22C38/02 , C22C38/04 , C22C38/18 , F16C33/30 , F16C33/64 , F16C2204/66
摘要： A rolling part formed by performing spheroidizing annealing, processing, carbonitriding and finishing on a steel material containing C in an amount of 0.90 mass % to 1.10 mass %, Si in an amount of more than 0.35% and up to 0.70%, Mn in an amount of less than 0.80 mass %, Cr in an amount of 1.85 mass % to 2.50 mass %, O in an amount of 12 ppm or less, and the balance of Fe and unavoidable impurities. The mean C amount on a surface is from 1.20 mass % to 1.50 mass %, and the mean N amount is from 0.10 mass % to 0.60 mass %. Deposits having a particle size of 0.1 μm or more on the surface have a mean particle size of 0.6 μm or less, exist as 700,000 particles or more per mm2, and have an area ratio of 10% or more. The amount of retained austenite of the surface is from 25% to 45% by volume ratio. The hardness of the surface is Hv 750 or more. The inside of the rolling part has an amount of retained austenite of 20% or less by volume ratio.
摘要翻译：在含有0.90质量％至1.10质量％的C的钢材上进行球化退火，加工，碳氮共渗和精加工而形成的轧制部，大于0.35％且高达0.70％的Si，小于0.80质量％的Cr，1.85质量％〜2.50质量％的Cr，12ppm以下的O，余量的Fe和不可避免的杂质。表面上的平均C量为1.20质量％至1.50质量％，平均N量为0.10质量％至0.60质量％。表面上具有0.1μm以上的粒径的沉积物的平均粒径为0.6μm以下，以每mm 2为700,000个以上的粒子存在，面积比为10％以上。表面残余奥氏体的量为25〜45体积％。表面的硬度为Hv 750以上。轧制部的内部具有20体积％以下的残留奥氏体的量。

8. 发明授权

US07413704B2 Case hardening bearing steel having excellent toughness and rolling contact fatigue life in intermediate temperature 有权
标题翻译：表面硬化轴承钢在中等温度下具有优异的韧性和滚动接触疲劳寿命
公开(公告)号：US07413704B2
公开(公告)日：2008-08-19
申请号：US10502691
申请日：2003-04-09
申请人： Akihiro Matsuzaki , Takashi Iwamoto , Masao Goto , Katsuhiko Kizawa
发明人： Akihiro Matsuzaki , Takashi Iwamoto , Masao Goto , Katsuhiko Kizawa
IPC分类号： C22C38/18 , C22C38/22 , C22C38/38 , C23C8/22
CPC分类号： C22C38/02 , C21D1/06 , C21D9/40 , C22C38/002 , C22C38/04 , C22C38/22 , C23C8/22 , Y10S148/906
摘要： A case hardening bearing steel having an excellent rolling contact fatigue life in intermediate temperature, in addition, excellent toughness at room temperature is provided. Specific means for solving the problems are as follows. The composition contains, by mass percent, C of 0.15 to 0.30 mass percent, Si of 0.5 to 2.0 mass percent, Mn of 0.3 to 2.0 mass percent, Cr of 1.3 to 2.5 mass percent, Mo of 0.3 to 1.0 mass percent, and O of not more than 0.0012 mass percent in a range where (Si+Mo)≧1.0 mass percent is satisfied, and contains iron and inevitable impurities as remnant; the maximum size of oxide nonmetallic inclusion is not more than 12.5 μm when examined area is 320 mm2; number of the oxide nonmetallic inclusion having a diameter of equivalent circle of 3 μm or more is not more than 250 when the examined area is 320 mm2; in addition, C density of an outer layer is adjusted to be in a range from 0.7 to 1.2 mass percent by carburization.
摘要翻译：提供了具有中等温度的优异的滚动疲劳寿命的外壳硬化轴承钢，另外在室温下具有优异的韧性。解决问题的具体方法如下。该组成以质量％计含有0.15〜0.30质量％的C，0.5〜2.0质量％的Si，0.3〜2.0质量％的Mn，1.3〜2.5质量％的Cr，0.3〜1.0质量％的Mo，以及O 在满足（Si + Mo）> = 1.0质量％的范围内不大于0.0012质量％，并且含有铁和不可避免的杂质作为残留物; 当检查面积为320mm 2时，氧化物非金属夹杂物的最大尺寸不超过12.5μm; 当检查面积为320mm 2时，具有3μm或更大的当量圆直径的氧化物非金属夹杂物的数量不大于250; 此外，通过渗碳将外层的C密度调节至0.7〜1.2质量％的范围。

9. 发明授权

US06582532B1 Steel for large bearing and parts for large bearing 有权
标题翻译：大型轴承用钢和大型轴承零件
公开(公告)号：US06582532B1
公开(公告)日：2003-06-24
申请号：US09868308
申请日：2001-09-27
申请人： Yutaka Kurebayashi , Sadayuki Nakamura , Kiyoyuki Hattori , Katsuhiko Kizawa
发明人： Yutaka Kurebayashi , Sadayuki Nakamura , Kiyoyuki Hattori , Katsuhiko Kizawa
IPC分类号： C22C3818
CPC分类号： C22C38/18 , C21D8/00 , C21D9/40 , C22C38/02 , C22C38/04 , F16C33/30 , Y10S148/906 , Y10S384/912
摘要： A steel for a large bearing suitable for parts of a large-sized bearing which are excellent in resistance to breakage and rolling fatigue life characteristics, and having a chemical composition by mass percentage of 0.80 to 1.30% of C, more than 0.35% and not more than 0.80% of Si, 0.30 to 0.90% of Mn, 0.90 to 1.50% of Cr, one or both of not more than 0.25% of Mo and 0.20 to 1.50% of Ni, the remainder being Fe and inevitable impurities, and exhibiting the following quench-hardenability measured according to a method specified in JIS G 0561: a HRC of 64 or more at J 1.5 mm, a HRC of 63 to 66 at J 7 mm, a HRC of 37 to 50 at J 15 mm, a HRC of 30 to 45 at J 20 mm, a HRC of 28 to 38 at J 45 mm.
摘要翻译：适用于大断裂和滚动疲劳寿命特性优异的大型轴承部件的大轴承用钢，其质量百分比为C：0.80〜1.30％，0.35％以上且0.35％以下， Si：0.80％以上，Mn：0.30〜0.90％，Cr：0.90〜1.50％，Mo：0.25％以下，Ni：0.20〜1.50％，Fe：不可避免的杂质和根据JIS G 0561中规定的方法测定以下淬火淬透性：在J1.5mm下HRC为64以上，J 7mm时HRC为63〜66，J 15mm时HRC为37〜50， HR为30〜45，J为20mm，HR为28〜38，J为45mm。

10. 发明申请

US20110030219A1 METHOD OF PRODUCING ROLLING SLIDING MEMBER 有权
标题翻译：制造滚动滑动构件的方法
公开(公告)号：US20110030219A1
公开(公告)日：2011-02-10
申请号：US12853911
申请日：2010-08-10
申请人： Towako MATSUI , Katsuhiko KIZAWA
发明人： Towako MATSUI , Katsuhiko KIZAWA
IPC分类号： B21D53/10
CPC分类号： F16C33/64 , C21D9/38 , Y10T29/49636 , Y10T29/49689 , Y10T29/49694 , Y10T29/49707 , Y10T29/49709
摘要： A method of producing a rolling sliding member, wherein, after a work for a rolling sliding member, which is made of a bearing steel and formed in a predetermined shape, is quenched, a heating start temperature is set to be 10 to 100° C., a heating finish temperature is set to be 220 to 350° C., a time between the heating finish time and the heating start time is set to be a heating time, the quenched work for the rolling sliding member is heated so that a rate of temperature increase indicated by the following formula becomes 7 to 35° C./s rate of temperature increase=(heating finish temperature−heating start temperature)/heating time, the work is tempered by being cooled without being maintained at a heating finish temperature from the heating finish time.
摘要翻译：一种滚动滑动构件的制造方法，其特征在于，在由轴承钢制成并形成为规定形状的滚动滑动构件的作业淬火后，将加热开始温度设定为10〜100℃ 加热结束温度设定为220〜350℃，将加热结束时间和加热开始时间之间的时间设定为加热时间，对滚动滑动部件进行淬火加工，由下列公式表示的温度升高率为7〜35℃/升温速度=（加热结束温度 - 加热开始温度）/加热时间，通过冷却而不进行加热回火而进行回火温度从加热完成时间。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式