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11. 发明授权

US6101719A Method of manufacturing rolling bearings 有权
标题翻译：制造滚动轴承的方法
公开(公告)号：US6101719A
公开(公告)日：2000-08-15
申请号：US242817
申请日：1999-02-25
申请人： Akihiro Kiuchi , Shigeru Okita , Kenji Yamamura
发明人： Akihiro Kiuchi , Shigeru Okita , Kenji Yamamura
IPC分类号： C22C38/22 , C22C38/24 , C23C8/22 , C23C8/80 , F16C33/30 , F16C33/62 , B21K1/02
CPC分类号： C22C38/24 , C22C38/22 , C23C8/22 , C23C8/80 , F16C33/30 , F16C33/62 , Y10T29/49707 , Y10T29/49709
摘要： In manufacturing a rolling bearing, at least one component of an inner ring, an outer ring, and a rolling element is manufactured from an alloy steel comprising 0.05 weight %-0.5 weight % carbon, 0.5 weight %-18 weight % chromium, 1.5 weight % or less silicon, 5 weight % or less molybdenum, 4.0 weight % or less vanadium, 4 weight % or less nickel, and 8 weight % or less tungsten, by subjecting the alloy steel to carburizing, hardening and tempering. The carburizing is carried out by vacuum carburization. In the vacuum carburization, carburizing and diffusion are carried out by introducing an acetylene-based carburizing gas in a hot atmosphere under reduced pressure, followed by hardening and tempering. The use of the vacuum carburization enables carburization with the chromium (Cr) content being 3.0 weight % or more, and even up to 18 weight %, which was difficult to achieve with the conventional gas carburization (pre-oxidation+gas carburizing).
摘要翻译： PCT No.PCT / JP98 / 03782 Sec。一九九九年二月二十五日 102（e）1999年2月25日PCT PCT 1998年8月26日PCT公布。公开号WO99 / 10557 日期1999年3月4日在制造滚动轴承时，由含有0.05重量％-0.5重量％碳，0.5重量％-18重量％的合金钢制成内圈，外圈和滚动元件的至少一个部件铬，1.5重量％以下的硅，5重量％以下的钼，4.0重量％以下的钒，4重量％以下的镍和8重量％以下的钨，通过对合金钢进行渗碳，淬火和回火。渗碳是通过真空渗碳进行的。在真空渗碳中，通过在减压下在热气氛中引入乙炔系渗碳气体进行渗碳扩散，然后硬化和回火。使用真空渗碳可以使铬（Cr）含量为3.0重量％以上，甚至高达18重量％的渗碳，这是常规的气体渗碳（预氧化+气体渗碳）难以实现的。

12. 发明授权

US5998042A Rolling bearing and rolling device 失效
标题翻译：滚动轴承和滚动装置
公开(公告)号：US5998042A
公开(公告)日：1999-12-07
申请号：US733451
申请日：1996-10-18
申请人： Susumu Tanaka , Kenji Yamamura , Manabu Ohori
发明人： Susumu Tanaka , Kenji Yamamura , Manabu Ohori
IPC分类号： C21D9/36 , C21D9/40 , C22C38/00 , C22C38/18 , C22C38/22 , C22C38/42 , C22C38/44 , F16C33/30 , F16C33/62 , B32B15/04
CPC分类号： C22C38/18 , C22C38/001 , C22C38/22 , C22C38/42 , C22C38/44 , F16C33/30 , F16C33/62 , C21D9/36 , C21D9/40 , F16C2204/70 , Y10T428/12576 , Y10T428/12611 , Y10T428/12979
摘要： A rolling device includes: an outer member; an inner member; and a plurality of rolling elements arranged between the outer and inner members, the outer member having a first contact surface which contacts the rolling elements, the inner member having a second contact surface which contacts the rolling elements, each of the rolling elements rolling against the first and second contact surfaces. At least one of the outer member, inner member, and rolling elements is formed of steel containing: C of less than 0.6 wt %; Cr of 10.0 wt % to 22.0 wt %; Mn of 0.1 wt % to 1.5 wt %; Si of 0.1 wt % to 2.0 wt %; N from 0.05 wt % to less than 0.2 wt %; Mo of 0 to 3.0 wt %, and V of 0 to 2.0 wt %; and the balance Fe and inevitable impurities, the steel satisfying C %+N %.gtoreq.0.45 wt % and containing retained austenite of .ltoreq.6 vol %. The rolling device has excellent characteristics in fatigue strength, wear resistance, corrosion resistance, and acoustic characteristic.
摘要翻译：滚动装置包括：外部构件; 内部成员; 以及多个滚动体，其设置在所述外部构件和所述内部构件之间，所述外部构件具有与所述滚动体接触的第一接触面，所述内部构件具有与所述滚动体接触的第二接触面，第一和第二接触表面。外部构件，内部构件和滚动体中的至少一个由钢形成，其含有小于0.6重量％的C; 10.0重量％〜22.0重量％的Cr; Mn为0.1重量％〜1.5重量％; Si为0.1重量％〜2.0重量％ N为0.05重量％以上，小于0.2重量％ 0〜3.0重量％的Mo，0〜2.0重量％的V。余量为Fe和不可避免的杂质，钢满足C％+ N％> = 0.45重量％，含有<6vol％的残余奥氏体。轧制装置具有优异的疲劳强度，耐磨性，耐腐蚀性和声学特性。

13. 发明授权

US06358333B1 Rolling member 失效
标题翻译：滚动会员
公开(公告)号：US06358333B1
公开(公告)日：2002-03-19
申请号：US09576954
申请日：2000-05-24
申请人： Susumu Tanaka , Kenji Yamamura , Manabu Obori
发明人： Susumu Tanaka , Kenji Yamamura , Manabu Obori
IPC分类号： C21D936
CPC分类号： F16C33/62 , C22C38/001 , C22C38/18 , C22C38/22 , C22C38/44 , C22C38/52 , F16C33/30 , F16C33/32 , F16C2240/54 , Y10S148/906 , Y10S384/912
摘要： An inexpensive rolling apparatus improved in resistance to fretting, acoustic performance, resistance to corrosion, life and workability is provided. At least one of an outer member, an inner member and rolling elements of the apparatus is formed of an alloy steel containing 1.5% by weight or less of C, 10% to 20% by weight of Cr, 0.1% to 0.8% by weight of Mn, 0.1% to 1.0% by weight of Si and less than 0.2% by weight of N, particularly, at least one of the outer member, the inner member and the rolling elements is formed of a martensitic stainless steel containing 0.6% by weight or less of C, 10% to 14% by weight of Cr, 0.1% to 0.8% by weight of Mn, 0.1% to 1.0% by weight of Si, less than 0.2% by weight of N, 0.5% by weight or less of Mo, 0.2% by weight or less of V, and Fe and inevitable components as the balance, wherein the relationship between the content of C and that of Cr satisfies C %≦−0.05 Cr %+1.41; the relationship between a specific relational equation eq1 indicating the content of elements accelerating the conversion of the raw material to ferrite, taken as (eq1)=Cr %+Si %+1.5 Mo %+3.5V %, and a specific relational equation eq2 indicating the content of elements accelerating the conversion of the raw material to austenite, taken as (eq2)=C %+0.83 N %+0.1 Mn %, satisfies (eq2)≧0.04×(eq1)−0.39, (eq1)≦14.0 and (eq2)≦0.8; and the total content of C and N satisfies C+N≧0.45%.
摘要翻译：提供了耐磨性，声学性能，耐腐蚀性，寿命和可加工性的廉价滚动装置。该装置的外部构件，内部构件和滚动体中的至少一个由含有1.5重量％以下的C，10重量％〜20重量％的Cr，0.1重量％〜0.8重量％的Mn，0.1〜1.0重量％的Si和小于0.2重量％的N，特别地，外部构件，内部构件和滚动体中的至少一个由马氏体不锈钢形成，所述马氏体不锈钢含有0.6％重量以下的C，10〜14重量％的Cr，0.1〜0.8重量％的Mn，0.1〜1.0重量％的Si，小于0.2重量％的N，0.5重量％少量的Mo，0.2重量％以下的V，Fe和不可避免的成分作为余量，其中C与Cr的含量之间的关系满足C％<= -0.05 Cr％+ 1.41; 以（eq1）= Cr％+ Si％+ 1.5Mo％+ 3.5V％表示加速原料转化为铁素体的元素含量的特定关系式eq1与特定关系式eq2之间的关系，（eq2）= C％+ 0.83N％+ 0.1Mn％，将原料转化为奥氏体的元素的含量满足（eq2）> = 0.04x（eq1）-0.39，（eq1）<= 14.0和（eq2）<= 0.8; C和N的总含量满足C + N> = 0.45％。

14. 发明授权

US06228184B1 Rolling member 失效
标题翻译：滚动会员
公开(公告)号：US06228184B1
公开(公告)日：2001-05-08
申请号：US09576265
申请日：2000-05-24
申请人： Susumu Tanaka , Kenji Yamamura , Manabu Obori
发明人： Susumu Tanaka , Kenji Yamamura , Manabu Obori
IPC分类号： C22C3818
CPC分类号： F16C33/62 , C22C38/001 , C22C38/18 , C22C38/22 , C22C38/44 , C22C38/52 , F16C33/30 , F16C33/32 , F16C2240/54 , Y10S148/906 , Y10S384/912
摘要： An inexpensive rolling apparatus improved in resistance to fretting, acoustic performance, resistance to corrosion, life and workability is provided. At least one of an outer member, an inner member and rolling elements of the apparatus is formed of an alloy steel containing 1.5% by weight or less of C, 10% to 20% by weight of Cr, 0.1% to 0.8% by weight of Mn, 0.1% to 1.0% by weight of Si and less than 0.2% by weight of N, particularly, at least one of the outer member, the inner member and the rolling elements is formed of a martensitic stainless steel containing 0.6% by weight or less of C, 10% to 14% by weight of Cr, 0.1% to 0.8% by weight of Mn, 0.1% to 1.0% by weight of Si, less than 0.2% by weight of N, 0.5% by weight or less of Mo, 0.2% by weight or less of V, and Fe and inevitable components as the balance, wherein the relationship between the content of C and that of Cr satisfies C %≦−0.05 Cr %+1.41; the relationship between a specific relational equation eq1 indicating the content of elements accelerating the conversion of the raw material to ferrite, taken as (eq1)=Cr %+Si %+1.5 Mo %+3.5 V %, and a specific relational equation eq2 indicating the content of elements accelerating the conversion of the raw material to austenite, taken as (eq2)=C %+0.83 N %+0.12 Mn %, satisfies (eq2)≧0.04×(eq1)−0.39, (eq1)≦14.0 and (eq2)≦0.8; and the total content of C and N satisfies C+N≧0.45%.
摘要翻译：提供了耐磨性，声学性能，耐腐蚀性，寿命和可加工性的廉价滚动装置。该装置的外部构件，内部构件和滚动体中的至少一个由含有1.5重量％以下的C，10重量％〜20重量％的Cr，0.1重量％〜0.8重量％的Mn，0.1〜1.0重量％的Si和小于0.2重量％的N，特别地，外部构件，内部构件和滚动体中的至少一个由马氏体不锈钢形成，所述马氏体不锈钢含有0.6％重量以下的C，10〜14重量％的Cr，0.1〜0.8重量％的Mn，0.1〜1.0重量％的Si，小于0.2重量％的N，0.5重量％少量的Mo，0.2重量％以下的V，Fe和不可避免的成分作为余量，其中C与Cr的含量之间的关系满足C％<= -0.05 Cr％+ 1.41; 以（eq1）= Cr％+ Si％+ 1.5Mo％+ 3.5V％表示加速原料转化为铁素体的元素的含量的特定关系式eq1与特定关系式eq2之间的关系，（eq2）= C％+ 0.83 N％+ 0.12 Mn％的元素的加入元素的含量满足（eq2）> = 0.04x（eq1）-0.39，（eq1）<= 14.0和（eq2）<= 0.8; C和N的总含量满足C + N> = 0.45％。

15. 发明授权

US5873956A Rolling bearing 失效
标题翻译：滚动轴承
公开(公告)号：US5873956A
公开(公告)日：1999-02-23
申请号：US803882
申请日：1997-02-21
申请人： Susumu Tanaka , Kenji Yamamura , Manabu Ohori
发明人： Susumu Tanaka , Kenji Yamamura , Manabu Ohori
IPC分类号： C21D6/04 , C21D9/36 , C21D9/40 , C22C38/00 , C22C38/18 , C22C38/34 , F16C33/30 , F16C33/62 , C23C8/32
CPC分类号： C21D9/40 , C22C38/18 , C22C38/34 , F16C33/30 , F16C33/62 , C21D6/04 , C21D9/36 , Y10S148/906
摘要： In order to provide rolling bearings of high performance using case hardened stainless steels that are superior to the conventional martensite base stainless steels in terms of corrosion resistance, rolling fatigue strength and wear resistance and which also have high core toughness, at least one member of the rolling bearing selected from among the inner race, the outer race and the rolling elements is made of an alloy steel consisting essentially of less than 0.5 wt % C, 8.0 to 20.0 wt % Cr, 0.1 to 1.5 wt % Mn, 0.1 to 2.0 wt % Si and the balance of Fe and incidental impurity elements; the relationship between the C and Cr contents satisfies 0.04 Cr (wt %)-0.39.ltoreq.C (wt %).ltoreq.-0.05 Cr (wt %)+1.41; the bearing also has a surface layer that is formed by nitriding or carbonitriding at a temperature below Ac.sub.1, subsequent heating at a temperature of 900.degree. to 1,200.degree. C., hardening, a subzero treatment and tempering.
摘要翻译：为了提供耐腐蚀性，滚动疲劳强度和耐磨性方面优于传统马氏体不锈钢的表面硬化不锈钢的高性能滚动轴承，并且还具有高的芯部韧性，至少有一个部件从内圈，外圈和滚动体中选择的滚动轴承由基本上由小于0.5重量％C，8.0重量％〜20.0重量％的Cr，0.1〜1.5重量％的Mn，0.1〜2.0重量％％Si和余量的Fe和杂质元素; C和Cr含量之间的关系满足0.04 Cr（wt％） - 0.39（C）（wt％）≤0.05Cr（wt％）+ 1.41; 轴承还具有通过在低于Ac1的温度下氮化或碳氮共渗形成的表面层，随后在900-1200℃的温度下加热，硬化，零度处理和回火。

16. 发明授权

US5864735A Image forming apparatus comprising a combination of a host computer, a printer, a copy machine, and an automatic document feeder 失效
标题翻译：图像形成装置包括主机，打印机，复印机和自动文件馈送器的组合
公开(公告)号：US5864735A
公开(公告)日：1999-01-26
申请号：US811839
申请日：1997-03-05
申请人： Motoyuki Fukuda , Kenji Yamamura , Satoshi Tanaka
发明人： Motoyuki Fukuda , Kenji Yamamura , Satoshi Tanaka
IPC分类号： G06F3/12 , G03G15/22
CPC分类号： G06F3/1294
摘要： An image forming machine including a host computer, a printer, a copying machine, and a document supply device for conveying a document printed by the printer to an automatic document feeder of the copying machine, in which a controller is provided for controlling a copy action based on a copy command from the host computer. The controller sends a left-behind document signal when a document is present on document stand of the automatic document feeder, while the host computer shows the presence of the left-behind document on a display when receiving the left-behind document signal from the controller.
摘要翻译：一种成像机，包括主计算机，打印机，复印机和文件供应装置，用于将由打印机打印的文件传送到复印机的自动文件进给器，其中提供控制器以控制复印动作基于来自主机的复制命令。当文档存在于自动送稿器的文档台上时，控制器发送一个左后文件信号，而主机在从控制器接收到留下的文档信号时，在显示屏上显示左侧文档的存在。

17. 发明授权

US5560787A Rolling bearing for high-speed rotation at high temperatures 失效
标题翻译：滚动轴承用于在高温下高速旋转
公开(公告)号：US5560787A
公开(公告)日：1996-10-01
申请号：US507748
申请日：1995-07-26
申请人： Masaaki Takagi , Manabu Ohori , Kyozaburo Furumura , Kenji Yamamura
发明人： Masaaki Takagi , Manabu Ohori , Kyozaburo Furumura , Kenji Yamamura
IPC分类号： C21D9/36 , C21D9/40 , C23C8/22 , C23C8/32 , F16C33/30 , F16C33/62
CPC分类号： F16C33/62 , C21D9/36 , F16C33/30 , C21D9/40 , Y10S148/906
摘要： One of component parts of an inner race, an outer race and rolling elements of a rolling bearing is composed of a bearing material that is prepared by working a high-speed steel, carburizing or carbonitriding the wrought steel in a temperature range from 800.degree. C. to less than 1200.degree. C. and subsequently hardening and tempering the carburized or carbonitrided steel, the steel composing of 0.2 wt %.ltoreq.C.ltoreq.2.3 wt %, Si.ltoreq.1.0 wt %, Mn.ltoreq.1.0 wt %, 2.0 wt %.ltoreq.Cr.ltoreq.7.0 wt %, 1.5 wt %.ltoreq.W.ltoreq.22.0 wt %, Mo.ltoreq.10.0 wt %, 0.5.ltoreq.V.ltoreq.6.0 wt %, Co.ltoreq.18.0 wt %, the balance Fe and incidental impurities. By carburizing or carbonitriding the steel at low temperatures less than 1,200.degree. C., not only high core toughness is insured but also the dissolved C or N in the surface is compensated to increase the hot strength of the steel and the compressive stress that remains in the surface after heat treatment, so that the rolling bearing that rotate at high speed and high temperatures of more 400.degree. C. extends the service life.
摘要翻译：内圈，外圈和滚动轴承的滚动元件的一部分由轴承材料组成，该轴承材料通过在800℃的温度范围内加工高速钢，渗碳或碳氮共渗制备而成至低于1200℃，随后硬化和回火渗碳或碳氮共渗钢，组成0.2wt％C = 2.3wt％的Si，1.0wt％的Mn，1.0wt 重量％，2.0重量％Cr = 7.0重量％，1.5重量％W = 22.0重量％，Mo 10.0重量％，0.5重量％6.0重量％，Co = 18.0wt％，余量为Fe和杂质。通过在低于1200℃的低温下对钢进行渗碳或碳氮共渗，不仅保证了高的核心韧性，还补偿了表面中溶解的C或N，以增加钢的热强度和保持在热处理后的表面，使滚动轴承在高速高温下转动400℃以上，延长使用寿命。

18. 发明申请

US20120078670A1 OPERATION INFORMATION OUTPUT DEVICE, METHOD FOR CONTROLLING OPERATION INFORMATION OUTPUT DEVICE, MONITORING DEVICE, METHOD FOR CONTROLLING MONITORING DEVICE, AND CONTROL PROGRAM 有权
标题翻译：操作信息输出设备，用于控制操作信息输出设备的方法，监控设备，用于控制监控设备的方法和控制程序
公开(公告)号：US20120078670A1
公开(公告)日：2012-03-29
申请号：US13248515
申请日：2011-09-29
申请人： Kenji Yamamura , Hiroshi Saito , Shintaro Kitagawa , Taisuke Tateishi , Maki Endo , Chisato Nakashima
发明人： Kenji Yamamura , Hiroshi Saito , Shintaro Kitagawa , Taisuke Tateishi , Maki Endo , Chisato Nakashima
IPC分类号： G06Q10/00 , G06F19/00 , G01R21/00
CPC分类号： G05B19/4184 , G05B2219/32234 , G05B2219/37348 , G06Q10/063 , Y02P90/14
摘要： An operation information output device includes: a power data acquirer that acquires time-series data of a physical quantity consumed or generated when production equipment executes a process; a single-cycle detector that detects time-series data of predetermined duration from the time-series data acquired by the power data acquirer, and an operation information acquirer that acquires operation information of the production equipment by use of the time-series data detected by the single-cycle detector, hence it becomes possible to easily calculate and determine detailed operation information.
摘要翻译：操作信息输出装置包括：电力数据获取器，其获取生产设备执行处理时消耗或产生的物理量的时间序列数据; 从由电力数据获取部获取的时间序列数据中检测出规定持续时间的时间序列数据的单周期检测器，以及通过利用由电力数据获取部检测出的时间序列数据获取生产设备的运行信息的操作信息取得器，单循环检测器，因此可以容易地计算和确定详细的操作信息。

19. 发明授权

US06592684B1 Rolling bearing 失效
标题翻译：滚动轴承
公开(公告)号：US06592684B1
公开(公告)日：2003-07-15
申请号：US09647245
申请日：2000-09-28
申请人： Kenji Yamamura , Manabu Ohori
发明人： Kenji Yamamura , Manabu Ohori
IPC分类号： C21C3818
CPC分类号： C22C38/18 , C21D1/25 , C21D9/36 , C21D9/40 , C23C8/22 , F16C33/30 , F16C33/62 , Y10S148/906 , Y10S384/912
摘要： A rolling bearing having excellent corrosion resistance and having a long life for use in airplanes is provided. The constituent parts of the rolling bearing are made from an alloy steel containing Cr which is required for the improvement of a rolling contact fatigue life at a high temperature and is most effective for providing steels with corrosion resistance when 7.0% or more to 16% or less on a weight percent basis is provided. The amount of a residual austenite on the surface of the completed product is from 6% or more and, preferably, 35% or less by stabilizing the residual austenite.
摘要翻译：提供具有优异的耐腐蚀性并且在飞机上使用寿命长的滚动轴承。滚动轴承的构成部件由含有Cr的合金钢制成，为了提高高温下的滚动疲劳寿命所需要的，并且对于在7.0％以上至16％以下的钢提供耐腐蚀性最有效时，或较少以重量百分比为基础。通过使残余奥氏体稳定化，成品表面残留奥氏体的量为6％以上，优选为35％以下。

20. 发明授权

US6086686A Rolling member 失效
标题翻译：滚动会员
公开(公告)号：US6086686A
公开(公告)日：2000-07-11
申请号：US60810
申请日：1998-04-16
申请人： Susumu Tanaka , Kenji Yamamura , Manabu Obori
发明人： Susumu Tanaka , Kenji Yamamura , Manabu Obori
IPC分类号： C22C38/00 , C22C38/18 , C22C38/22 , C22C38/44 , C22C38/52 , F16C33/30 , F16C33/32 , F16C33/34 , F16C33/62 , C22C38/02 , C22C38/04
CPC分类号： F16C33/62 , C22C38/001 , C22C38/18 , C22C38/22 , C22C38/44 , C22C38/52 , F16C33/30 , F16C33/32 , F16C33/34 , Y10S148/906 , Y10S384/912
摘要： An inexpensive rolling apparatus improved in resistance to fretting, acoustic performance, resistance to corrosion, life and workability is provided. At least one of an outer member, an inner member and rolling elements of the apparatus is formed of an alloy steel containing 1.5% by weight or less of C, 10% to 20% by weight of Cr, 0.1% to 0.8% by weight of Mn, 0.1% to 1.0% by weight of Si and less than 0.2% by weight of N, particularly, at least one of the outer member, the inner member and the rolling elements is formed of a martensitic stainless steel containing 0.6% by weight or less of C, 10% to 14% by weight of Cr, 0.1% to 0.8% by weight of Mn, 0.1% to 1.0% by weight of Si, less than 0.2% by weight of N, 0.5% by weight or less of Mo, 0.2% by weight or less of V, and Fe and inevitable components as the balance, wherein the relationship between the content of C and that of Cr satisfies C%.ltoreq.-0.05 Cr%+1.41; the relationship between a specific relational equation eq1 indicating the content of elements accelerating the conversion of the raw material to ferrite, taken as (eq1)=Cr%+Si%+1.5 Mo%+3.5 V%, and a specific relational equation eq2 indicating the content of elements accelerating the conversion of the raw material to austenite, taken as (eq2)=C%+0.83 N%+0.12 Mn%, satisfies (eq2).gtoreq.0.04.times.(eq1)-0.39, (eq1).ltoreq.14.0 and (eq2).ltoreq.0.8; and the total content of C and N satisfies C+N.gtoreq.0.45%.
摘要翻译：提供了耐磨性，声学性能，耐腐蚀性，寿命和可加工性的廉价滚动装置。该装置的外部构件，内部构件和滚动体中的至少一个由含有1.5重量％以下的C，10重量％〜20重量％的Cr，0.1重量％〜0.8重量％的Mn，0.1〜1.0重量％的Si和小于0.2重量％的N，特别地，外部构件，内部构件和滚动体中的至少一个由马氏体不锈钢形成，所述马氏体不锈钢含有0.6％重量以下的C，10〜14重量％的Cr，0.1〜0.8重量％的Mn，0.1〜1.0重量％的Si，小于0.2重量％的N，0.5重量％少量的Mo，0.2重量％以下的V，Fe和不可避免的成分作为余量，其中C与Cr的含量之间的关系满足C％≤0.05Cr％+ 1.41; 以（eq1）= Cr％+ Si％+ 1.5Mo％+ 3.5V％表示加速原料转化为铁素体的元素的含量的特定关系式eq1与特定关系式eq2之间的关系，（eq2）= C％+ 0.83N％+ 0.12Mn％，将原料转化为奥氏体的元素的含量满足（eq2）> / = 0.04×（eq1）-0.39，（eq1）< /=14.0和（eq2） = 0.45％。

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